KR20190074287A - Secondary barrier system - Google Patents

Abstract

A secondary barrier system for a ship or hull of a ship or ship, said secondary barrier system comprising: a membrane (1); And a membrane support layer (101) attachable to the hull or the dock to support the membrane (1) against the hull or dock, the membrane comprising: at least a portion of the membrane support layer (101) And a plurality of panels (2, 3, 4, 12, 14, 16, 17, 18) sealed to each other so that they do not pass through the membrane (1) , 6, 11, 12, 13, 14, 16, 17, 18) comprises at least one corrugated panel (2, 3, 6, 12, 14, 18); The membrane (1) is attached directly to the membrane support (101) layer by one or more attachments (60); And the at least one attachment (60) and the at least one corrugation (41) are arranged such that when the membrane (1) undergoes thermal expansion and contraction, the membrane (1) 1) is arranged to slide with respect to the membrane support layer (101) in order to relax the stress of the membrane (1).

Description

Secondary barrier system

The present invention provides a barrier system comprising a secondary barrier system for hull or hold and primary and secondary barriers.

It is known to transport or store media to ships or ships at temperatures below ambient temperature, such as liquefied natural gas (LNG), liquid ethylene, liquid petroleum gas (LPG), or liquid nitrogen. It is common to ship such media by ship, and there is increasing interest in storing such media in floating land storage units. The hold of such ship or storage unit can be insulated from the hull or from the dock or hull wall using an array of insulating panels that greatly cover the entire surface area of the hull. It is desirable to seal the insulating panel and the hull or wall from the holds to prevent any liquid in the hold from leaking to the insulating panel and the hull / wall. Liquids in these areas can reduce the efficiency and lifetime of the insulation panels and damage the hull. Thus, there is a primary barrier to store media in the hull / dock, but there is a demand for a secondary barrier between the primary barrier and the hull / dock.

Conventional attempts to provide such secondary barriers include providing an insulation panel attached to the hull and a membrane provided on the inner surface of the insulation panel. The membrane is operative to seal the insulating panel from the interior of the dock. One such example is the NO 96 system produced by GTT (Gastransport et Technigaz). In this system, the membrane is formed by a plurality of straps that are indirectly bonded to the insulating panel through separate components in the form of tongues. The tongue is held in place by engaging a slot formed in the insulating panel. Tongs are needed to allow thermal expansion and heat shrinkage of insulating panels in GTT systems. However, this is a complicated system requiring that the strake be indirectly attached to the insulating panel through the tongue, requiring substantial modification of the insulating panel to attach the tongue and strike. Furthermore, in the GTT system, the primary barrier is substantially similar to the secondary barrier and is supported by the secondary barrier.

The present invention aims at providing a simpler solution.

In a first aspect, the present invention provides a secondary barrier system for a hull or dock of a ship or ship, said secondary barrier system comprising: a membrane; And a membrane support layer attachable to the hull or the dock to support the membrane relative to the hull or pontoon, the membrane comprising: at least a portion of the membrane support layer, The plurality of panels comprising at least one corrugated panel including therein at least one corrugation; The membrane being attached directly to the membrane support layer by one or more attachments; And wherein the at least one attachment and the at least one corrugation are configured such that when the membrane undergoes thermal expansion and contraction, the membrane slides against the membrane support layer to relieve stress on the membrane induced by thermal expansion and contraction. .

Since the membrane is attached directly to the membrane support layer, the attachment of the membrane is simpler than in prior art systems. Direct attachment is advantageous because it is a simple and powerful method of attaching the membrane to the membrane support layer. However, without further modification of the direct attachment of the membrane to the membrane support layer, stress occurs when the membrane undergoes thermal expansion or contraction. Thus, the inventors have devised a system in which at least one corrugation slides the membrane against the membrane support membrane. The inventors have also devised a system that includes an attachment arranged to slide a membrane against a support layer (for example, without the need for an intermediate element such as a tongue) while attaching the membrane directly to the membrane support layer. Corrugation and attachment work together to alleviate the stresses of the membrane when the membrane is directly attached to the membrane support layer due to thermal expansion / contraction of the membrane.

The membrane may be liquid-tight. The membrane may also be gas-tight, i.e. the plurality of panels (and possibly other components of the membrane, see below) may be sealed together so that the gas does not pass through the membrane.

Additionally / alternatively, the hull / dock may also be airtight.

A gas monitoring system can be placed between the membrane and the hull / pod walls. The gas monitoring system can detect whether gas leaks through the membrane.

The membrane support layer may be attached / attachable to the inner surface of the wall of the hull or dock.

The plurality of panels can be attached to each other by welding and sealed.

The ship or ship may transport or store the medium at a temperature below ambient temperature, such as liquefied natural gas (LNG), liquid ethylene, liquid petroleum gas (LPG), or liquid nitrogen.

By "directly" attached, it is meant that the membrane is attached to the membrane support layer using an attachment that attaches the membrane to the support layer without any intermediate features. By other means, the panel (s) of the membrane is attached to the membrane support layer using an attachment that attaches the panel (s) to the support layer without any intermediate features. For example, in the GTT NO 96 system, the attachment is not direct because the membrane is attached to the membrane support via a tongue. The direct attachment of the present invention is a simple attachment such as a screw that is applied directly to the membrane and to the membrane support layer.

As described above, the at least one attachment and the at least one corrugation are arranged such that when the membrane undergoes thermal expansion and contraction, the membrane is slid with respect to the membrane support layer to mitigate the stresses of the membrane induced by thermal expansion and contraction do. Accordingly, the inventor has devised a system in which the attachment (s) and the corrugation (s) exert synergies to mitigate the stresses of the membrane that would otherwise be due to direct attachment. This can be accomplished by selecting the location of the attachment (s), the orientation of the attachment (s), the orientation of the corrugation (s), the size of the corrugation (s), and the like. Thus, the geometry of the membrane can be selected to minimize the overall stress of the membrane.

By "relieving " stress means that the stress is reduced compared to the stress and without the attachment and corrugation (s) of the present invention. That is, it is prevented that the stress is increased to a level that would otherwise be. There may be some stress left on the membrane because it is difficult or impossible to completely remove the stresses due to thermal expansion / contraction while the membrane is attached directly to the membrane support layer.

By "attaching" the membrane to the membrane support layer, it is meant that the membrane is held or held against the membrane support layer. The membrane can be held or held against the membrane support layer in a direction perpendicular to the overall plane of the membrane (or membrane support layer) at a given point; The membrane can slide relative to the membrane support layer in the direction of the overall plane of the membrane (or membrane support layer) at a given load.

Not all positions of the membrane may be slidable relative to the membrane support layer. Due to the overall geometry / arrangement of the membrane, the location (s) of the membrane remains stationary relative to the membrane support layer during thermal expansion / contraction.

The membrane may be formed of a material including Invar. The panel can be made of Invar. Invar can be Inva M93. Invar M93 is an alloy mainly containing nickel and iron. The coefficient of thermal expansion is very low (about 1.5 x 10 ^-6 / cm). Thus, it is particularly useful in the present invention, since it further reduces the stress on the membrane. Preferably, at least substantially all of the components making up the membrane are made of Invar, such as panels, corner pieces, support member plates and / or support members, as described below.

The panel may be generally planar and may be rectangular in shape. The panel can be described as a strike.

The plurality of panels may include at least one uncorrected panel. The present inventors have found that it is not necessary for the panel to include corrugation in order to reduce the overall stress of the system. Thus, a portion or, preferably, a majority of the panels may not include corrugations. For example, for every corrugated panel there can be at least 2, 3, 4, 5, 6, 7 or 8 non-corrgated panels. For all corrugated panels, there can be 8, 7, 6, 5, 4, or fewer than 3 non-corrgated panels. For all corrugated panels, there may be preferably non-corrugated panels of 2 to 8, preferably 4 to 6.

Adjacent corrugated panels may be parallel to each other. A ratio between adjacent parallel corrugated panels of at least 2, 3, 4, 5, 6, 7 or 8 (or 8, 7, 6, 5 or 4 or less, or 2 to 8 or 4 to 6) There may be a corrugated panel, and the non-corrugated panel is parallel to the corrugated panel. The non-corrugated panel may be planar. It is advantageous to use non-corrugated panels where possible, because it is cheaper to produce.

There can be multiple corrugated panels.

The / each corrugated panel may comprise a corrugation extending in a linear direction. This can be the only corrugation in the corrugated panel. The corrugation may extend substantially to the full length of the panel. The corrugation may be located approximately midway between the panel widths. The corrugated panel may preferably have non-corrugated ends at both ends of the length of the corrugated panel. This uncorrected end can be advantageous because it can simply overlap with adjacent panels. Alternatively, a corrugation may be passed to one or both ends of the corrugated panel (e.g., if the corrugation goes over the corrugated corner, see below).

The plurality of corrugated panels being arranged such that the at least one panel is oriented such that the corrugations extend in a first direction and the at least one panel is arranged such that a corrugation extends in a second direction, Lt; / RTI > The inventors have found that orienting the corrugations perpendicular to one another reduces the overall stress of the membrane during thermal expansion / contraction. Preferably, all of the corrugated panels are oriented in a first direction or a second direction.

 The longitudinal direction may be the longitudinal direction of the hull / pier, and the lateral direction may be the width direction of the hull / pier. However, these terms may simply be relative terms and may be used in other ways as well.

The inventors have also found a particularly preferred arrangement for the position and length of the corrugated panel. This is a grid-like system in which the corrugated panel extends in a first direction and a second direction. Adjacent parallel corrugated panels may be spaced apart by one or more non-corrugated panels, which may preferably extend in the same direction as adjacent parallel corrugated panels. The corrugated panels extending in the first direction may both be collinear and arranged parallel to the other corrugated panel (s). Likewise, the corrugated panels extending in the second direction may be arranged collinearly and arranged parallel to the other corrugated panel (s). The collinear sets of collinear co-strands can be interrupted between adjoining corrugated panels by means of corrugated panels joined together singly together and also extending in different directions. These discontinuities are discussed in more detail in the paragraphs below. The inventors have found that it may be advantageous to have some interrupted sets of corrugated panels and some non-interrupted corrugated panels parallel to one another. The non-interrupted corrugated panel may preferably be substantially the same length as the total length of the interrupted corrugated panel set.

The non-interrupted corrugated panel may be longer than the interrupted corrugated panel. Alternatively, the uninterrupted corrugation may consist of a plurality of aligned corrugated components (e.g., panels and corner pieces) formed and connected to each other so that the corrugations are continuous (even if the panels are not continuous) .

Thus, the end of the first corrugated panel extending in the first direction can be joined to the side of the second corrugated panel extending in the second direction. The end of the third corrugated panel extending in the second direction may be joined to the first side of the first corrugated panel. The end of the fourth corrugated panel extending in the second direction may be joined to the second side of the first corrugated panel opposite the first side. The second corrugated panel may be longer than the third and fourth corrugated panels. The third and fourth corrugated panels may extend co-linearly.

The first side may be one of the length-wise edges of the panel, and the second side may be another longitudinal edge of the panel.

In this arrangement, the third and fourth panels may be described as a set of interrupted panels as described above, interrupted by the first corrugated panel. The second panel may be the non-interrupted corrugated panel mentioned above. There may be one or more additional corrugated panels disposed inline with the third and fourth panels and one or more additional additional corrugated panels extending in a first direction affixing each end of these corrugated panels There may be a panel. Preferably, the second corrugated panel is substantially the same length as the interrupted corrugated panel set. The second corrugated panel may extend substantially throughout the hull / hold.

There may also be at least one additional corrugated panel extending collinear with the first corrugated panel and attached to the opposite side of the second panel. In this way, it can be seen that the second panel halts the set of corrugated panels that extend collinear in the first direction.

In this way, the present invention preferably includes a vertical network or grid of interrupted and uninterrupted corrugations formed of a plurality of vertically equilibrated and collinearly extending corrugated panels. . The exact arrangement may be chosen to reduce the overall stress of the membrane, which may depend on the geometry of the hull / hull in question.

The hull / pail typically has vertically extending wall (s) and (at least partially) horizontally extending wall (s), such as (at least partially) a floor and / or ceiling. In order for the membrane to provide the necessary protection against leaks, the membrane must conform to the overall shape of the hull / pail (typically followed by the membrane support layer). The membrane can (completely) cover the inner surface of the membrane support layer / hull / dock floor and also preferably covers at least a portion of the side wall. It may or may not cover the ceiling. Preferably, the membrane extends only partially over the side walls.

Thus, the membrane support layer may include a corner that joins two or more substantially planar sections, and the membrane may include at least one corner piece shaped to rest on the corner of the membrane support layer, and at least one of the corner pieces may be flat Is sealed to at least one of the plurality of panels in each of the sections.

When the corner piece is shaped to rest against the corners of the membrane support layer joining only two planar sections of the membrane support layer (i.e. (partially) vertical sections and (purely) horizontal sections or partially vertical sections and purely vertical sections) Portion may include two planar portions that are connected to each other at substantially the same angle that the two planar sections of the membrane support layer extend with respect to each other.

The corner piece is shaped to rest against the corners of the membrane support layer which bonds only three planar sections of the membrane support layer (e.g., a first (partially) vertical section, a second (partially) vertical section and a purely horizontal section) The corner portions may include three planar portions that are connected to each other at substantially the same angle as the three planar sections of the membrane support layer extend against each other.

By being "partially" vertical, it is between 0 and 90 degrees, 10 to 80 degrees, or 20 to 70 degrees or 30 to 60 degrees, or 40 to 50 degrees, ≪ / RTI >

Thus, the geometry of the corner pieces of the membrane may be substantially identical to the geometry of the corners of the membrane support layer on which it is seated, for example, the planar portion of the corner piece of the membrane may be identical to the planar portion of the membrane support layer forming the corners Can be extended with respect to each other at an angle.

The corner pieces may be corrugated or non-corrugated. The non-corrugated corner pieces may be attached to the uncorrected panel. And can be attached to the corrugated corner-piece corrugated panel. The corrugated corner pieces may have a corrugation substantially similar to the corrugation of the corrugated panel (s). The corrugation can lead to a corrugation (preferably at a midpoint of the corrugated piece) and can join the corrugation of one corrugated panel to the corrugation of another corrugated panel to another. Thus, the corrugated corner pieces can effectively allow the corrugation in one plane to be continuous (i.e., uninterrupted) with the corrugation of the other planes.

The at least one attachment can be configured such that when the membrane undergoes thermal expansion and contraction, the membrane can slide at a position of at least a portion of the attachment in the direction of the entire plane of the membrane relative to the membrane support layer. Thus, while the attachment directly attaches the membrane to the membrane support layer, the attachment permits relative movement of the membrane at the attachment location in the entire plane of the membrane at that location. This helps relieve the stress at the attachment position. A plurality of such attachments may exist.

The attachment can be configured to slide (at the attachment position) in both dimensions of the entire plane of the membrane.

Additionally or alternatively, the attachment can be configured to slide in one dimension of the entire plane of the membrane.

When the membrane is viewed as a whole, due to the presence of corrugation, some position on the membrane can move in two dimensions of the entire plane of the membrane, some position on the membrane can move to only one dimension of the entire plane of the membrane, The location may not move in the entire plane of the membrane due to thermal expansion / contraction. The inventor recognized this and devised an attachment that allowed the required movement, depending on the desired attachment location.

The at least one attachment comprises: a groove in the membrane support layer; A sunken portion in one of the panels; And a depression retainer for holding the depression in the groove. The recess, depression, and depression retainer may be shaped such that the depression can slide within the depression when the membrane undergoes thermal expansion and / or contraction. This sliding may be in both the first and second directions.

The adjacent panel can overlap the groove, depression and depression retainer and can be attached and sealed to the panel with the depression. In this way, adjacent panels are also held against the membrane support layer through the attachment.

The recessed retainer portion may act to push or press the panel (s) downwardly towards the membrane support layer.

As will be described in more detail below, the depression can be located at the edge of the panel.

To describe the attachment in more detail, the attachment is typically located where two adjacent panels meet. The attachment is generally located at the edge of one of the panels, preferably the longer edge of the panel. Preferably, there is (only) one attachment between the membrane and the membrane support for each location where the two panels are bonded together.

Possible forms of attachment are now described.

The first panel may include a depression. The depression may extend along the length of the edge of the first panel, preferably along most of the edge, but not necessarily along the entire edge.

The membrane support layer may comprise a groove. The grooves may be in the upper panel or box of the membrane support layer. The grooves may be for attachment of the membrane to the membrane support layer. The grooves may have a uniform depth across the width (the width of the groove in the direction in which the groove extends and perpendicular to the direction of the depth of the groove). Preferably, however, the groove comprises a deeper section and a shallower section. These two sections may extend from opposite sides of the groove and may meet one another in steps towards the middle of the width of the groove. These two sections may have substantially the same width, but preferably the deeper sections are (slightly) wider than the shallower sections. For example, a deeper section may have a width of 10-30 mm, and a shallower section may have a width of 10-20 mm. The deeper section may be deeper than the shallow portion by an amount substantially equal (or slightly larger) than the thickness of the material used to form the membrane.

The grooves may extend in the same direction as the depressions. The depression can interact with the groove. When the membrane expands and contracts due to thermal effects, this interaction can slide in the groove in both directions parallel to the direction of the depression groove and in the direction of the groove perpendicular to the direction of the groove (in the entire plane of the membrane support layer) .

This interaction is explained in more detail below.

The depression may be a stepped shape. The depression may include a depressed planar portion oriented parallel to the remainder of the first panel. The recessed planar portion may be connected to the remainder of the first panel through a step that extends substantially perpendicular to the remainder of the first panel.

The recessed planar portion may have a length that is substantially the same as the length of the first panel, but may be shorter than the length of the first panel (i.e., it need not extend over the entire length of the edge of the first panel); However, it can be extended over most of the length of the panel. The recessed planar portion may have a width less than the width of the deeper portion of the groove and preferably the width of the recessed planar portion is at most 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 10 mm (or at least 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, or 10 mm). This causes the recessed flat portion to slide in the width direction of the groove when the membrane expands and contracts due to the thermal effect.

The depth of the recessed planar portion (e.g., the length of the step) is approximately equal to the depth of the deep portion of the groove. This allows the first panel to abut the membrane support layer and seat at the same height while allowing the recessed flat portion to abut the bottom of the deep portion of the groove to seat at the same height.

The distance between adjacent grooves in the membrane support may be substantially the same as the distance between the depressions of the panel. Adjacent depressions of the membrane can be on the same panel (e.g., opposite side of the same panel) and / or on another panel (e.g., adjacent panel).

The membrane may be retained against the membrane support layer through a depression retainer, which may be a wedge. The depression retainer can hold the depression of the first panel in the groove. The depression retainer can be disposed in the groove. The depression retainer may have a length substantially equal to the length of the groove. The depression retainer may have a width that is smaller than the width of the groove but greater than the width of the shallower portion of the groove. The depression retainer may have a thickness that is substantially equal to or less than the depth of the shallower portion of the groove. The depression retainer can be fixed to a groove, such as the bottom of the shallower portion of the groove, for example, by a screw or a plurality of screws. The depression retainer may be secured in a shallower portion of the groove such that there is a gap between the depression retainer and the edge of the deeper groove portion. This clearance allows the depression (e.g., step) to pass between the edge of the deeper groove portion and the depression retainer, and when the membrane expands and contracts due to thermal effects, (For example, perpendicular to the direction in which the groove extends). The gap may be up to 1 mm, 2 mm, 3 mm, 4 mm, 5 mm or 10 mm (or at least 1 mm, 2 mm, 3 mm, 4 mm, 5 mm or 10 mm).

A second adjacent panel is disposed on the edge and depression retainer of the first panel. Specifically, it may be the edge of the second panel overlapping the depression retainer and the first panel. The second panel may overlap the first panel. The second panel can be fixed and sealed to the first panel like welding.

The second panel may include a raised portion. The embossed portion may extend along the length of the edge of the second panel, preferably along the entire length of the second panel. The embossed portion may overlap with the first panel. The entire embossed plane of the portion can be oriented parallel to the entire plane of the remainder of the second panel.

The embossed portion may have a length substantially equal to the length of the second panel. The embossed portion may be embossed by an amount substantially equal to the thickness of the first panel and possibly the thickness of the second panel (the thickness of these panels may be the same). The thickness of all panels may be substantially the same; This allows the second panel to abut the membrane support layer and seat at the same height while allowing the embossed portion to abut the first panel and seat at the same height.

The membrane support layer, for example the upper panel of the membrane support layer, may comprise a groove for housing a weld protection strip. The welding protective strip may be made of a material that can protect the top panel from welding heat when welding is performed at a location above the welding protective strip. The grooves for housing the welding protective strips and strips may be located at locations where the welds are arranged to fix the panels of the membrane together, for example, where adjacent panels meet or overlap. This position is typically adjacent to the groove for the attachment described above. Thus, the grooves for housing the welding protective strip and the strip may be disposed adjacent to the grooves for the attachment, and may extend parallel to the grooves for the attachment. Each groove for the attachment may have a groove for housing a welding protection strip adjacent thereto.

The depth of the groove housing the weld protection strip may be substantially the same as the thickness of the strip (preferably a depth less than 5 mm, preferably less than 2 mm, preferably less than 1 mm, Less). The width of the groove for housing the welding protective strip may be substantially the same as the width of the strip (preferably 10-100 mm, preferably 30-80 mm, preferably 50-70 mm). The length of the groove for housing the welding protective strip may be substantially the same as the length of the strip, and preferably the length extends over the entire panel.

A weld protective strip comprised of a thermal protective material is located between the first panel and the membrane support layer at a location below the overlap weld. The strip is disposed in a groove for the thermal protection material of the membrane support layer. The thermal protection material protects the membrane support layer from welding heat.

As can be seen from the above description, the attachment allows the membrane to be attached to the membrane support while allowing thermal expansion and contraction of the membrane both in the longitudinal direction of the groove and in the width direction of the groove.

Each attachment may be located between different adjacent panels. Each attachment may be substantially similar, and one panel with the depression is retained in the groove by the depression retainer, and the panel is overlapped by the adjacent panel. The panel may be a transverse panel, a longitudinal panel, or a partial vertical panel or a vertical panel. The panel may be corrugated or non-corrugated.

There may be one attachment positioned at the location where each pair of adjacent panels meet. These adjacent pairs may be a transverse panel or a longitudinal panel or both.

As will be appreciated, the attachment is primarily discussed for attachment at a location between two adjacent panels, but the attachment may be disposed at any location where the first membrane component meets the second membrane component. In this case, the first membrane component includes a depression that is retained in the groove of the membrane support layer but can still be slid, and the second membrane component is overlapped with the depression and secured and sealed to the first membrane component. Any combination of membrane components may be used for the first and / or the second membrane component, e.g., a corner portion, an end cap, a corrugated panel, a non-corrugated panel, a support panel, and the like. The membrane component may comprise any feature described in connection with the attachment herein.

In one example of the system, the corrugated panel may not have depressions. For example, the longitudinally corrugated panel and / or the transversely corrugated panel may not have any indentations.

As can be appreciated from the above, when the panel does not have a depression on its edge, the edge of the depressed panel may overlap instead of the adjacent panel with depressions. This may be the case for a length edge (at least) but for the width edge of the panel.

Thus, when the corrugated panel does not include depressions, they overlap with adjacent panels, preferably non-corrugated panels. The corrugated panel may overlap the adjacent panel along the edge of the adjacent panel with the depressions.

A given panel may comprise two edges with depressions, one edge with depressions or no edge. If the panel has two edges with depressions, this panel can be overlapped by two adjacent panels. If there is one depression in the panel, it can overlap (e.g., through the embossed portion) and overlap with another adjacent panel. If the panel is free of any depressions, two adjacent panels (e. G., Through two embossed portions) may overlap.

As can be seen, the first exemplary panel (which can be corroded, but preferably non-corrugated) has two recesses, preferably along the length of the panel, Section. It should be noted that the depression may not extend along the entire length of the panel. At one end (preferably only one end, but possibly both ends) of the panel, the panel may comprise an embossed portion for overlapping adjacent panels or corner portions or other portions of the membrane, such as support plates . The embossed portion preferably extends along the entire width of the panel so that when it is welded to the overlapping panel, the membrane can be completely sealed.

A second exemplary panel (which may be corrugated, but preferably not corrugated) is preferably provided along a majority of the length of the panel, preferably only one recess extending along one of the length edges of the panel Section. It should be noted that the depression may not extend along the entire length of the panel. There may be an embossed portion along the other length side of the panel. The embossed portion can extend along the entire length of the panel so that the membrane can be completely sealed when it is welded to the overlapped panel. At one end of the panel (preferably only one end, possibly both ends), the panel may include other overlapping portions of the membrane, such as adjacent panels or corners, or embossed portions for the support plate. This embossed portion can extend along the entire width of the panel, so that the membrane can be completely sealed when it is welded to the overlapping panel.

Some of the panels may have substantially the same length and width as one another and some have substantially the same length but may have different widths and some have substantially the same width but different lengths and some have different lengths and widths Lt; / RTI >

For example, it may be desirable to taper the corrugation to the flat end at which the corrugation is to be interrupted. To do this, an end cap may be provided. The end cap can be attached to the end of the predetermined corrugated panel. The end cap may include a corrugation that may be attached to the corrugation of the corrugated panel to which the end cap is attached to form a continuous corrugation between the corrugated panel and the end cap. The corrugation of the end cap can then be tapered to a flat end. The end cap portion is preferably about 100-500 mm, preferably 300 mm long. The width of the end cap portion may be substantially the same as the width of the corrugated panel to which it is attached. The taper radius of the corrugation in the end cap may be between.

In the case where the corrugation is interrupted or stopped (e.g., when the end of the corrugated panel in one direction meets a vertically oriented corrugation or meets a non-corrugated membrane component) Can be connected to the component and sealed. This can be accomplished through an end cap.

The corrugated panel in which the corrugation is to be interrupted or terminated may comprise a central portion and an end cap attached to the central portion. The end cap may be attached to the central portion by overlap and / or underlap. The overlap and / or underlap may be welded to both the center portion and the end cap. The overlaps and / or underlaps may be about 10-100 mm wide and may have a length similar to (perhaps even greater or lesser) than the width of the corrugated panel. The overlap may be smaller or longer than the underlap; The overlap may be smaller or larger than the underlap. The overlap and / or underlap may be a strip of material such as Invar. The overlap and / or underlap may also include a corrugated portion in a form similar to the corrugation of the corrugated panel and end cap. Adjacent to the overlap and / or underlap, the end may meet the central portion in an end-on fashion.

The very end of the corrugated panel (e.g., the end portion of the flat portion of the end cap) may overlap or underwrap with the membrane component that interrupts or terminates the corrugation.

If the corrugation is not interrupted, the corrugated panel may not include an end cap. Rather, it may be attached to other cor- rogated components that effectively form a continuous cor- rection between the components. These components may be other corrugated panels or corrugated corner portions. Similar to the end caps, overlaps and / or underlaps may be used to attach these adjacent components together.

In the present application, the terms "inner" and "outer" are used in connection with the hull / pontoon. The inner direction is closer to the center of the hull / dock and the outer direction is farther from the center of the hull / dock.

The membrane support layer may comprise a plurality of boxes (preferably made of wood). At least some of the boxes may include one or more grooves for receiving the depressions of the panel and / or for receiving the heat resistant strips as described above. Wood is used because it is strong, cheap and well insulated. It is also easy to tighten with screws. Preferably, the wood is a plywood. The box may be filled with an insulating material such as a polyurethane foam.

The membrane support layer may be configured to thermally isolate the hull / hull from the interior of the membrane support layer. The membrane support layer can be thermally insulated. The membrane support layer may comprise an insulating material such as a polyurethane foam.

The membrane support layer may preferably comprise an insulation panel made of a polyurethane foam.

The membrane support layer may comprise an upper panel (preferably made of wood) on the inner surface. The upper panel may be a plywood panel. The top panel may be attached to the inside of the insulating panel or may be the inner panel of the box.

The box can be used at the corner of the secondary barrier. These boxes may be arranged end-to-end and may extend horizontally as a whole.

The membrane support layer may also include one or more insulation stacks. The insulation stack can be placed between the boxes. The upper surface of the insulating stack may comprise one or more grooves for the above-mentioned depressions.

The insulation stack (s) may include gaps and / or there may be a gap between adjacent insulation stacks. This gap allows any leakage fluid (e.g., gas) to pass through the membrane.

The stack may comprise an insulating panel, preferably a plurality of insulating panels, preferably only two insulating panels. Multiple stacks may be used to construct the membrane support layer. The insulation stack may include a cold insulation panel and a warm insulation panel. The warm insulation panel may be mounted on the hull / pod wall and the cold insulation panel may be mounted on the inside of the warm insulation panel. On the inner surface of the cold insulating panel, an upper panel (preferably made of wood, preferably made of plywood) can be mounted. The cold and warm insulation panels may have substantially the same dimensions, for example, a thickness of about 100-300 mm (preferably 200 mm), a length of 500-1500 mm (preferably 1000 mm) and a width of 500-1500 mm (preferably 1000 mm) Lt; / RTI > However, the cold panel may preferably have a length and / or width that is slightly less than the warm panel. This allows a large gap between adjacent cold panels compared to between adjacent warm panels. The insulating panel, and the ear stack may be approximately square in plan.

The hull / pail wall may include a plurality of connection stubs that can penetrate holes in the stack and / or box. The connection stub can be used to attach the stack (s) and box (s) to the hull / porthole walls. The connection stub is threaded and can secure the insulation panel to the hull / dock wall via washer and / or nut. Holes in the cold insulating stack and / or box may be filled with bungs to insulate the holes and the connecting stubs.

On the inner surface of the cold insulating panel, an upper panel may be attached. This can be attached using a connection stub. The upper panel is preferably plywood. The top panel may be to provide, for example, shrinkage control to provide structural support to the insulating panel structure (s) to protect the surface of the insulating panel (s). The top panel may also allow attachment of the membrane to the membrane support via the attachment as described above.

The top panel may have substantially the same length and width as the insulating panel (s). However, it may have a substantially smaller thickness, such as less than 50 mm, preferably less than 20 mm. The top panel may be substantially square.

The top panel of the stack may include at least one groove for attaching the membrane to the top panel. This groove is as described above. Preferably, each panel may comprise two such grooves (preferably only two) substantially parallel to each other. The number of such grooves (or the presence of such grooves) may be determined and selected by the designer of the secondary barrier system to allow for a desired level of attachment and security between the membrane and membrane support, which may vary from system to system.

Preferably, the groove (s) may extend throughout the panel (s).

The top panel of the stack also includes a groove for housing the welding protection strip. These grooves and strips are as described above.

The length of the groove may be substantially the same as the length of the strip, and preferably the length extends over the entire top panel. Adjacent stacks can be arranged such that their respective grooves form continuous grooves, effectively increasing the length of the grooves over multiple stacks.

Around the perimeter of the cold insulating panel, flexible and porous frames can be arranged. It can be made of rockwool. This serves to maintain the integrity of the insulating panel and to provide flexibility of the insulating layer and to provide a gas exhaust channel in the event of leakage. The flexible frame can effectively fill gaps between adjacent insulating panels and allow fluids (e.g., gas) to leak through the membrane support layer.

Around the perimeter of the warm insulation panel, a flexible frame can be arranged. It can be made of rockwool. This serves to maintain the integrity of the insulation panel, to provide flexibility of the insulation layer, and to provide a gas exhaust channel in the event of leakage.

Preferably, the insulating panel comprises a polyurethane foam or may be made of a polyurethane foam.

Additionally or alternatively, there may be another insulating stack present in the membrane support layer. This stack is generally the same as the stack described above, except that no grooves or weld protection strips are present because the membrane is not needed when not attached to the stack.

As to the box in more detail, the box can be closed normally and the hollow box can be made of panel. The box may be at least partially filled with an insulating material such as a polyurethane foam.

The box may include a plurality of portions. These portions may each be in the form of at least a substantially closed box. These portions may include a cold box portion and a warm box portion. The warm box part can be mounted on the hull / pail wall and can be mounted inside the cold box partial ion box part. The cold and warm box portions may be formed, for example, to have a thickness of about 100-300 mm (preferably about 200 mm), about 500-1500 mm (preferably about 1000 mm) long, and about 100-500 mm (preferably about 300 mm) They can have the same dimensions. However, the cold box may preferably have a length and / or width slightly less than the warm box. This allows a large gap between the adjacent cold box and the panel when compared to an adjacent warm box and panel. The cold box and warm box portions are rectangular in shape and have a substantially rectangular shape in plan view.

The thickness of the box is substantially the same as the thickness of the stack (s). The thickness of the cold box portion may be substantially the same as the thickness of the cold insulating panel. The thickness of the warm box portion may be substantially the same as the thickness of the warm insulating panel.

The warm box portion may take the form of a closed hollow box. The warm box portion may preferably be formed of a panel of wood. The warm box portion may be filled with an insulating material such as a polyurethane foam.

The cold box portion may take the form of a closed hollow box. The cold box portion may preferably be formed of a panel of wood. The cold box portion may be filled with an insulating material such as a polyurethane foam. The upper panel of the cold box portion may be the upper panel of the box as a whole.

Each box (or box portion) can be divided into cells. Each cell may take the form of a closed hollow portion of a box (or box portion) filled with an insulating material.

As described above, the hull / dock wall may include a plurality of connection stubs. They may pass through holes in the box, possibly into insulating materials, such as holes in warm and cold box portions. The connection stubs are threaded and can be fastened to the hull / dock wall via washers and / or nuts.

The top of the box may include at least one groove for the attachment of the membrane to the box. This groove is as described above. Preferably each box may comprise only one groove. The number of grooves (or the presence of grooves) can be determined and selected by the designer of the secondary barrier system to allow a desired level of attachment and fixation between the membrane and membrane support, which may vary from system to system.

Preferably, the groove (s) may extend throughout the box (s).

The upper portion of the box may include a groove for housing the weld protection strip. These grooves and strips are as described above.

Preferably, the groove (s) extend in a direction parallel to the longitudinal direction of the box.

The length of the groove may be substantially the same as the length of the strip, and preferably the length extends over the entire top panel.

Adjacent stacks may be arranged such that their respective grooves form a continuous groove, effectively increasing the length of the grooves across the plurality of boxes and / or the stack.

The secondary barrier system may include at least one support member for supporting the primary barrier. The support member (s) can be arranged to transfer the load of the primary barrier to the hull or the dock without substantially any load being transmitted through the remainder of the secondary barrier system (i. E., Membrane and membrane support layer). The load may be the weight of the primary barrier (and its contents) and the vertical / horizontal reaction force associated with the movement of the ship / ship.

At least one of the at least one support member may be attachable to the hull or dock. The support member may extend through the membrane support layer and the membrane. The support member may be sealed to the membrane adjacent the support member. The support member can be arranged so that the load of the primary barrier can be substantially transmitted to the hull or the dock through the support member without passing through the remainder of the secondary barrier.

Additionally / alternatively, it may be supported by at least one support member support of the at least one support member. The support member support can be attached to the hull or the dock and can support the support member. The support member and the support member support can be arranged so that the load of the primary barrier can be substantially transmitted to the hull or the dock through the support member and the support member support without passing through the remainder of the secondary barrier.

The support member support may support a support member plate on which the support member is seated, the support member is attached, or the support member is integrally formed.

The plate or support member may form part of the membrane as a whole or may be sealed to the membrane.

The support member may include an insulating material for preventing heat flowing through the support member. This insulating material may be a polyurethane foam and / or a glass fiber reinforced epoxy. An insulating material capable of withstanding the load (for example, glass fiber reinforced epoxy) may be required because only the insulating material is desired to contact the primary barrier in order to maximize thermal insulation. Thus, the portion of the support member that is in contact with the primary barrier may be an insulating material capable of withstanding the load of the primary barrier, such as glass fiber reinforced epoxy. The support member may comprise a metal (preferably comprising or consisting of NV9Ni) which provides load transfer from the primary barrier to the hull / pontoon. The support member may be hollow or the frame (i.e., the metal portion may be hollow or frame), and the hollow portion or the interior of the frame may be filled with an insulating material such as a polyurethane foam.

The support member may include a support member plate arranged to be sealed to the membrane adjacent the support member such that the support member plate is oriented substantially in the entire plane of the membrane at the location of the support member. The plate can be made of Invar. The membrane may overlap the support plate and be welded to the support plate. The support plate may be integral with the support member or may be sealed to the support member. This can ensure that the secondary barrier does not leak.

The support member, the support member plate, and / or the support member support may comprise (or consist of) a material suitable to withstand loads such as NV9Ni.

There may be a plurality of support members. There may be at least one or more support members connectable to the floor of the hull / hatch. There may be at least one or more support members connectable to at least one, two, three, four or each side wall of the hull / pontoon. There may be at least one or more support members connectable to the ceiling of the hull / hatch.

Preferably, the components (e.g., panel, corner piece, support plate, etc.) that can constitute the membrane can each be made of one piece. This is possible due to the simple design of the membrane. This simplifies the construction of the membrane and reduces the risk of leakage.

The membrane may have a thickness of less than 5 mm, preferably less than 2 mm, preferably less than about 1 mm in thickness. The panel (s) and / or any other part constituting the cornice piece and / or membrane may have a thickness of less than 5 mm, preferably less than 2 mm, preferably less than about 1 mm in thickness. The membrane may have a substantially constant thickness; However, the thickness may vary slightly because some components may have different thicknesses. For example, some panels may be about 1 mm thick (preferably panels with low portion (s), embossed portion (s) and / or corrugation (s)), (Preferably a panel with no low, embossed or corrugated portions).

In a second aspect, the present invention provides a barrier system comprising: a secondary barrier system as discussed above, and a primary barrier, the primary barrier being supported by at least one support member; And the primary barrier is the tank.

The tank may be a steel tank. The tank may be an independent tank. The tank may be a gravity tank. The tank can carry LNG. Tanks may comply with the design conventions for LNG transport, such as the DNV Rules for Classification of Ships. Preferably, the tank may be a custom design DNV classification of Ships 2016, Part 5: Chapter 7: Liquefied Gas Tanks, Section 20: Designed as a Type-A and Type-Bdml independent prismatic tank .

The use of tanks as primary barriers is advantageous over known systems such as the GTT NO 96 system. In the prior art, the primary barrier also consists of a specially configured membrane and insulating panel layer (i.e., the primary barrier is essentially similar to the secondary barrier and seats inside the secondary barrier). However, it is simpler and cheaper to use the tank as the primary barrier. Furthermore, because there is an industry standard specification available for the tank (eg DNV classification rules), the user will find that the primary barrier meets specifications without having to perform any evaluation or inspection.

Moreover, in the prior art, the primary barrier is typically supported by the secondary barrier. The system prevents this by supporting the primary barrier using at least one support member. In this way, loads of primary barriers (which may include cargo such as LNG) can be transferred directly to the hull. Thus, the secondary barrier of the present system may not be subjected to substantial load, which may reduce wear of the secondary barrier and thus prolong its service life.

The components of the secondary barrier system can be arranged such that the membrane is substantially symmetrical (e.g., symmetrically as possible as possible with respect to the geometry of the hull / dock). The inventors have found that the membrane must be arranged symmetrically to reduce the overall stress of the membrane. This means that the components making up the membrane can be arranged to be membrane-symmetric. The membrane may be symmetrical with respect to at least one line, preferably two lines. Thus, the corrugated panel (s), non-corrugated panel (s), corner piece (s) and / or support member (s) may be substantially symmetrical, or at least symmetrical, with respect to the geometry of the hull / Lt; / RTI >

This symmetry can only exist when the entire membrane or secondary barrier system is viewed (e.g., on a greatly reduced scale). The membrane or secondary barrier may not have this symmetry in a smaller scale (e.g., where smaller details of the membrane or secondary barrier are considered).

The second aspect may include any of the features of the first aspect of the present invention described above.

In a third aspect, the present invention provides a barrier system for a hull or dock of a ship or ship, the barrier system comprising: a primary barrier and a secondary barrier, the secondary barrier comprising the membrane or the hull or And a membrane support layer attachable to the hull or to the dock to support the membrane against the dock, the secondary barrier comprising at least one support member for supporting the primary barrier, And the load of the secondary barrier is at least substantially transferred to the hull or the dock through the supporting member without passing through the remainder of the secondary barrier.

The load can be the vertical / horizontal reaction force associated with the weight of the primary barrier and / or the movement of the ship / ship.

The support member may include an insulating material for preventing heat flowing through the support member. This insulating material may be a polyurethane foam and / or a glass fiber reinforced epoxy. An insulating material capable of withstanding the load (for example, glass fiber reinforced epoxy) may be required because only the insulating material is desired to contact the primary barrier in order to maximize thermal insulation. Thus, the portion of the support member that is in contact with the primary barrier may be an insulating material capable of withstanding the load of the primary barrier, such as glass fiber reinforced epoxy. The support member may comprise a metal (preferably comprising or consisting of NV9Ni) which provides load transfer from the primary barrier to the hull / pontoon. The support member may be hollow or the frame (i.e., the metal portion may be hollow or frame), and the hollow portion or the interior of the frame may be filled with an insulating material such as a polyurethane foam.

At least one of the at least one support member may be attachable to the hull or dock. The support member may extend through the membrane support layer and the membrane. The support member may be sealed to the membrane adjacent the support member. The support member can be arranged so that the load of the primary barrier can be substantially transmitted to the hull or the dock through the support member without passing through the remainder of the secondary barrier.

Additionally / alternatively, at least one of the at least one support member may be supported by the support member. The support member support can be attached to the hull or the dock and can support the support member. The support member and the support member support can be arranged so that the load of the primary barrier can be substantially transmitted to the hull or the dock through the support member and the support member support without passing through the remainder of the secondary barrier.

The support member support may support a support member plate on which the support member is seated, the support member is attached, or the support member is integrally formed.

The plate or support member may form part of the membrane as a whole or may be sealed to the membrane.

The support member may include a support member plate arranged to be sealed to the membrane adjacent the support member such that the support member plate is oriented substantially in the entire plane of the membrane at the location of the support member. The plate can be made of Invar. The membrane may overlap the support plate and be welded to the support plate. The support plate may be integral with the support member or may be sealed to the support member. This can ensure that the secondary barrier does not leak.

The support member may extend from the hull / pail wall through the secondary barrier into the interior space of the hull / pail where the primary tank is located.

There may be a plurality of support members. There may be at least one or more support members connectable to the floor of the hull / hatch. There may be at least one or more support members connectable to at least one, two, three, four or each side wall of the hull / pontoon. There may be at least one or more support members connectable to the ceiling of the hull / hatch.

The primary barrier may be a tank. The tank may be a steel tank. The tank may be an independent tank. The tank may be a gravity tank. The tank can carry LNG. Tanks may comply with the design conventions for LNG transport, such as the DNV Rules for Classification of Ships. Preferably, the tank may be a custom design DNV classification of Ships 2016, Part 5: Chapter 7: Liquefied Gas Tanks, Section 20: Designed as a Type-A and Type-Bdml independent prismatic tank .

As mentioned above, the use of a tank as the primary barrier is advantageous over known systems such as the GTT NO 96 system. In the prior art, the primary barrier also consists of a specially configured membrane and an insulating panel layer (i. E., The primary barrier is essentially similar to the secondary barrier and seats inside the secondary barrier) to support the membrane. However, it is simpler and cheaper to use the tank as the primary barrier. Furthermore, because there is an industry standard specification available for the tank (eg DNV classification rules), the user will find that the primary barrier meets specifications without having to perform any evaluation or inspection.

Moreover, in the prior art, the primary barrier is typically supported by the secondary barrier. The system prevents this by supporting the primary barrier using at least one support member. In this way, loads of primary barriers (which may include cargo such as LNG) can be transferred directly to the hull. Thus, the secondary barrier of the present system may not be subjected to substantial load, which may reduce wear of the secondary barrier and thus prolong its service life.

The third aspect may include any one of the features of the first aspect and / or the second aspect of the present invention described above.

It should be readily understood that the barrier system may include any of the features described above with respect to the primary barrier, the secondary barrier, and / or the hull / hull.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
1 shows a top view, a side view and an end view of a membrane according to an embodiment of the present invention.
Figure 2 shows a detailed view of a membrane according to one embodiment of the invention.
3 shows a detailed view of a membrane support layer according to an embodiment of the present invention.
4 shows a detailed view of an insulation panel of a membrane support layer according to an embodiment of the present invention.
Figure 5 shows a detail view of another insulating panel of a membrane support layer in accordance with an embodiment of the present invention.
Figure 6 shows a detailed view of a box of a membrane support layer according to one embodiment of the present invention.
Figure 7 shows a cross section of an interrupted transverse corrugation in a membrane according to an embodiment of the invention.
Figure 8 shows a cross section of a non-interrupted transverse corrugation in a membrane according to an embodiment of the invention.
Figure 9 shows a detail of a portion of a membrane according to an embodiment of the invention.
Figure 10 illustrates a cross section of an interrupted longitudinal corrugation in accordance with one embodiment of the present invention.
Figure 11 shows a detail view of a portion of a membrane according to an embodiment of the present invention.
Figure 12 shows a cross-sectional view of a secondary barrier comprising a support member according to one embodiment of the present invention, showing a detail of an attachment directly securing the membrane to the membrane support layer.
Figure 13 shows a detail of the attachment used to secure the membrane to the membrane support layer.
Figures 14, 15 and 16 show possible panels of a membrane according to an embodiment of the invention.
Figure 17 shows an end piece of a corrugated panel according to an embodiment of the invention.
Figure 18 illustrates an exemplary primary barrier for use with the present system.

1A shows a side view of a longitudinally extending side wall portion of a membrane 1 of a secondary barrier. The membrane includes a plurality of corrugated panels extending partially in a vertical direction (3) and a substantially vertical direction (2). The corrugated panel extending partially in the vertical direction 3 extends perpendicular to the longitudinal direction. A corrugated panel extending in a substantially vertical direction (2) extends perpendicular to the longitudinal direction. There are four non-corrugated panels 4 between the corrugated panels. The uncorrected panel 4 extends perpendicular to the longitudinal direction. The panels 2, 3 and 4 are generally rectangular in shape and their ends are attached to the corner pieces 5, 6. The corner piece 5 connects the vertical panel partially with the vertical panel and the corner piece 6 partially connects the vertical panel with the horizontal panel (as seen in Figure 1c). At each end of the longitudinal wall portion, the longitudinal wall portion is connected to the transverse end wall of the membrane 1 via the corner portions 7, 8, 9, 10,

The membrane also includes another plurality of corrugated panels that extend partially in the vertical direction 56. These panels 56 extend perpendicularly to the longitudinal direction. There is a non-corrugated panel 57 between the corrugated panels. These panels 57 extend perpendicularly to the longitudinal direction. The panels 56, 57 are rectangular in shape and their lower ends are attached to the corner pieces 55, 55 '. The corner piece 55 connects the vertical panel 4 partially to the vertical panel 57 (as seen in FIG. 1A). The corner piece 55 'connects the vertical panel corrugated panel 2 with the partially vertical corrugated panel 56 (as seen in FIG. 1A). The upper edge of the panels 56, 57 may extend through the membrane support layer 101 and may be attached to the hull / pod as described below with reference to Figures 7 and 8.

Figure IB shows a top view of the floor of the membrane (1). The floor includes a plurality of interrupted lateral corrugations 11 extending parallel to one another. These suspended transverse corrugations 11 consist of a collinear transversely aligned corrugated panel 14 consisting of collinear longitudinal corrugated panels 14 and interrupted by a longitudinal corrugation 13 extending parallel to one another 12). The floor also includes a non-interrupted transverse corrugation 15 extending across the floor between two opposing corner pieces 6. The non-stopped transverse corrugation 15 interrupts the longitudinal corrugation 13 and is parallel to the interrupted corrugation 11. Thus, the end of the longitudinally corrugated panel 14 is attached to the opposite side of the non-corrugated transverse corrugated panel 15, and the end of the laterally co- And is attached to the side of the corrugated panel 14 in opposition.

In the illustrated embodiment, four non-corrugated lateral panels 16 separate adjacent transverse corrugations 11,15. The non-corrugated lateral panels 16 are also rectangular and their ends are attached to the corner portions 6, the longitudinally corrugated panel 14 and / or the support member plate 51.

Preferably two longitudinal corrugations 13 spaced apart by a distance d ₁ , which may be less than about 2, 3, 4 or 5 m. As shown in Figure 1, there are 22 transverse corrugations 11, 15 that can be spaced substantially evenly by a distance d ₂ , which can be up to 1, 2, 3 or 4 m. However, depending on the particular shape and size of the hull or dock, other numbers of transverse corrugations 11, 15 may of course be used.

Between the support member 50 adjacent the lateral koreo ligated (11, 15), the mid-point (d ₃₎ to, and adjacent longitudinal koreo ligation (13) or longitudinal koreo aggregation 13 and the corner pieces (6) between the (D < / RTI >< RTI ID = 0.0 > ₄ ). ≪ / RTI > The support member plate 51 may have a width approximately equal to the width of the two uncorrected panels 16. The support member / plate 51 can thus be regarded as leading to the longitudinal and transverse lines, and these longitudinal lines have a distance d ₅ (preferably at most 2, 3, 4 or 5 m) and ( d ₆ ) (preferably at most 4, 6, 8, or 10 m), and the transverse lines are separated by a distance d ₂ .

Fig. 1C shows an end view of the transverse end wall of the membrane 1. Fig. The end walls include a plurality of rectangular transverse uncorrected panels 17 with their ends extending vertically through the corrugated panel 18 and / or the corner pieces 7, 8, 9, 10, 58 . These panels 17 extend perpendicularly to the longitudinal direction. Furthermore, there is a non-corrugated corner piece 65 connecting the vertically oriented uncorrected panel 17 with the partially vertically uncorrelated panel 67, and the vertically oriented corrugated panel < RTI ID = 0.0 > There is a corrugated partial corner piece 65 ' connecting the corrugated part 18 with the vertically angled panel 66 partially. These panels 17 extend perpendicularly to the longitudinal direction.

The opposite sidewalls are substantially the same as those shown in Fig. 1A, and the opposite end walls are substantially the same as those shown in Fig. 1C.

As can be seen in Figure 1, each partially vertically aligned corrugated panel 56 is provided with individual transverse corrugations 11, 15 ' through corrugated corner portions 5 ', 6 ', 55 ' To the respective vertically corrugated panel 3 connected to the respective partially vertically corrugated panel 3, Thus, such corrugated components form a continuous transverse corrugation. This transverse corrugation preferably extends perpendicularly to the longitudinal direction, which extends in a short-end fashion, which is not interrupted by the corner portions 5 ', 6', 55 '.

Similarly, each partially vertically uncorrelated panel 57 is connected to a respective partially vertically uncorrelated (not corrugated) panel 57, which is connected to the individual transverse non-colocation panel 16 via corner portions 5, Corrugated panel 4 connected to the panel 4, as shown in Fig. Thus, the uncorrected panel also extends in an end-to-end manner.

Likewise, each partially vertically corrugated panel 66 at the end wall is connected to the vertical corrugation 13 at the floor of the membrane 1 via the end corner portions 19 ', 65' Gated panel 18 as shown in FIG. Thus, this corrugated component forms a continuous longitudinal corrugation 13. These longitudinal corrugations 13 extending perpendicularly to the transverse direction extend in a single-ended manner and are preferably not interrupted by the corner portions 19 ', 65'.

Moreover, as can be seen from Figure 1, the membrane 1 is substantially symmetrical. Referring to FIG. 1B, a plane of symmetry lies in the longitudinal direction at the midpoint of the width of the membrane. This symmetry can only exist when the membrane 1 is viewed as a whole (e.g., a greatly reduced scale). In a smaller scale (for example, when smaller details of the membrane 1 are considered, such as grooves and embossing and descending portions, etc.), the membrane 1 may not have this overall symmetry.

The membrane 1 may be a trough-shaped or bath-shaped shape formed by a floor, side walls and end walls. The height (d ₇ ) of the membrane is at most 3, 4, 5, 6 or 7 m. The exact shape and height of the membrane, of course, may vary from ship to ship depending on grade and requirements. Each support member plate 51 is supported by a support member plate support 54 (or simply a support member support 54). A support member plate support 54 extends between the hull / mount wall 106 and the membrane 1. Supporting Member The plate support 54 forms (or may not) form part of the support member 50 described below. The support member plate support 54 may include one or more at least partially vertically extending plates.

One or more (or each) support member 50 and / or support member plate 51 are arranged to support a primary barrier (e.g., a tank) in a vertical direction (i.e., ) 50 and / or support member plate (s) 51 may support the weight of the primary barrier). One or more (or each) support member 50 and / or support member plate 51 are arranged to support a primary barrier (e.g., a tank) in a horizontal direction (i.e., ) 50 and / or support member plate (s) 51 may prevent horizontal movement of the primary barrier). The member (s) 50 and / or plate (s) 51 that support the primary barrier in the vertical direction may be supported by the member (s) 50 and / or plate (s) (51).

The support member (s) 50 may be formed integrally with the respective support member plate (s) 51.

For each support member (s) 50 and / or support member plate (s) 51 that support the primary barrier vertically, the support member plate (s) 51 (each) (Not shown). These support (s) 54 may take the form of one or more at least partially vertically oriented members, on which respective support member plates 51 may be seated.

For each support member (s) 50 and / or support member plate (s) 51 that support the primary barrier horizontally, the support member plate (s) 51 (each) (Not shown). These support (s) 54 may take the form of one or more at least partially vertically oriented members, on which respective support member plates 51 may be seated. These support (s) 54 may include one or more at least partially vertically oriented members extending through the membrane / secondary barrier and preventing / inhibiting horizontal movement of the primary barrier.

Figure 2a is a cross-sectional view of the hull / dock of the vessel in which the membrane 1 and the membrane support layer 101 can be seen. The support member 50 shown in Fig. 2A is seated on the support member plate 51. Fig.

Figure 2b shows the enlarged detail view B of Figure 2a. 2b shows five different corner pieces 6, 6 ', 7, 8, 19, each of which is shaped to fit the individual corners of the membrane support layer 101. The first corner piece 6, 6 'attaches the horizontal panel 15 partially with the vertical panels 3, 4, 16.

In particular, the non-corrugated corner pieces 6 connect each end of the non-corrugated panel 4 and the non-corrugated panel 16. The non-corrugated corner piece 6 includes two planar sections connected by a corner portion 6b, which preferably has a radius of curvature of about 30 mm (see Fig. 2d) and has an angle of about 120 . The planar section preferably extends at least about 240 mm from the corner portion (see Figure 2D).

At one longitudinal end, the corner piece 6 is connected to the corrugated panel 15 in the horizontal transverse direction and to the corrugated corner piece 6 'attached to the end of the partially vertically corrugated panel 3 do. At the other longitudinal end, the corner piece (6) is connected to the corner piece (7).

The corner piece 7 is a 3D corner piece in that it connects three different wall: end walls, side walls and floor to each other. Likewise, corner pieces 9 and 58 can be regarded as 3D corner pieces. The other corner pieces 5, 5 ', 6, 6', 8, 10, 19, 19 ', 55, 55', 65 and 65 'may be regarded as 2D corner pieces. The corner pieces (7) each extend in the respective direction of the floor, the end wall and the side wall, and each is connected together by an appropriate corner portion.

The corner piece 8 connects the side wall to the end wall and is similar to the corner piece 6 in construction except that the corner angle can be about 90 degrees. Similarly, the corner piece 19 connects the floor to the end wall and is similar in construction to the corner piece 6 except that the corner angle can be about 90 degrees. There may also be a corrugated corner piece (not shown) connecting the longitudinal corrugation 13 and the vertical corrugation 18. Again, the configuration of this piece may be similar to the corrugated corner piece 6 '.

The corner pieces 6, 6 ', 7, 8, 19 may be attached to each other by overlap, underlap and by welding as will be described in more detail below.

Fig. 2C shows an enlarged detail view (A) of Fig. 2A. Sectional view of the secondary barrier showing the membrane 1 and the membrane support layer 101 can be shown. Membrane support layers are stacked on top of each other and include insulating panels 102 and 103 attached to the hull / dock. The panel 102 is a cold insulating panel, and the panel 103 is a warm insulating panel. Details of these panels are discussed in FIG. The support layer 101 also includes a plurality of boxes 121, preferably made of wood, preferably of plywood. The box 121 is attached to the corners of the hull / pontoon and is used to form the corners of the support layer 101. The corner pieces 5, 5 ', 6, 6', 7, 8, 9, 10, 19, 19 ', 55, 55', 65 and 65 'are attached to the box 121. As can be seen in FIG. 2C, the horizontal, horizontally aligned corrugated panel 12 is attached to the partially vertically corrugated corner piece 6 ', which in turn is partly vertical corrugated panel 3, Which is in turn affixed to the corrugated corner piece 5 ', which is attached to the vertically corrugated panel 2. Similarly, the uncorrected corner pieces 6, 5 attach the uncorrected panels 16, 4 to each other.

Figure 2e shows the end wall of the secondary barrier system. The top panel 104, which is disposed on the inner surface of the individual cold insulating panel 102 described below, may show lining the hull / pontoon at a height above the membrane 1. A plurality of horizontal corrugated panels are provided between the vertically corrugated panel 18 and the corner pieces 7,8,9,10 to form the end wall of the membrane 1, Lt; / RTI > The upper edge of the end wall of the membrane 1 may be formed by another corner piece 65 attached to the top of the horizontal panel 17. The edge portion 19 is connected to a corrugated piece 19 'connecting the longitudinally corrugated panel 14 and the vertically corrugated panel 18 and to a non-corrugated panel of floor and wall And includes a non-corrugated portion 19.

As shown, substantially all of the inner surface of the hull / dock is lined with insulating material. Thus, the ceiling, side walls, end walls and floor of the hull / pontoon are covered with insulation panels 102, 103 and insulative filler support members 50 and insulating materials such as insulating fill box 121 and corner portions 105 Lt; / RTI >

Figure 2f shows a cross section of the end wall of the secondary barrier system taken through E-E of Figure 2e. The detail highlighted F (see Figure 13b below for details) is an attachment mechanism in which the panels 17 are attached to each other and to the membrane support layer 101.

Figure 3A shows a cross-sectional view of the secondary barrier from which the membrane 1 has been removed. Thus, the membrane support layer 101 can be seen. The membrane support layer is made of insulating panels 102, 103 covered with a box 121 (preferably a wood box) and an upper panel 104 (preferably a wood panel) on the inner surface thereof. The wood is preferably plywood. The membrane support layer comprises two types of insulation stacks. A plurality of first insulating stacks 201 are used underneath the membrane 1 and a plurality of second insulating stacks 202 are used in locations where there is no membrane 1. The first insulating stack 201 and the second insulating stack 202 are described in detail in FIGS. 4 and 5.

FIG. 3B shows an enlarged detail view BA of FIG. 3A. Here, the corners between the side walls, the end walls, and the floor of the membrane supporting layer 101 are shown. The corners themselves are constituted by a plurality of boxes 121. The corner between the sidewall and the floor is formed by two boxes 121, each arranged such that the inner-most planar surface of each box 121 is individually oriented in the plane of the floor and sidewall. The corner between the side wall and the end wall is formed by two boxes 121, each arranged such that the innermost planar surface of each box 121 is individually oriented in the plane of the end wall and side wall. The corners between the end walls and the floor are formed by two boxes, each arranged such that the innermost planar surface of each box 121 is individually oriented in the plane of the floor and end walls. Are a plurality of upper panels 104 adjacent the boxes 121, individually in the entire plane of the floor, the end walls and the sidewalls again. Together, the innermost surfaces of the top panel 104 and the box 121 form the inner surface of the membrane support layer 101.

FIG. 3C shows an enlarged detail view BB of FIG. 3B. This illustrates the cross-section of the membrane support layer 101 at the corner between the floor and the longitudinal side wall. By comparing Figures 3c and 2c, the panels extending in the lateral direction of the sidewalls and floor generally overlie the top panel 204 while the corner pieces are overlaid on the box 121 as a whole. As can be seen, over the outer surface of the top panel 104, insulation panels 102 and 103 are attached. The outer surfaces of these panels 102, 103 are attached to the hull / dock.

In addition, between the box 121 of the corner of the membrane support layer 101, the membrane support layer 101 includes the corner piece 105. Corner portion 105 is preferably an insulating corner piece made of an insulating material such as polyurethane foam and possibly wood. Which is shaped to fit tightly between the two boxes 121 at the corner and hull / dock.

FIG. 3D shows a view of the end wall of the membrane support layer 101 and shows a cross-sectional view of the floor, ceiling, and side walls of the membrane support layer 101. FIG. As shown, the box 121 is located at the bottom corner of the secondary magnetic wall and at the top of the membrane 1. These boxes 121 are arranged in stages and extend horizontally as a whole. Between the boxes, an insulating stack 201 is provided. The upper surface of the insulation stack 201 is shown in Figure 3d with a horizontal extension groove 1042 for fixing the membrane 1 to the membrane support layer 101. [ This is described in more detail in Fig. On top of the membrane, an insulating stack 202 is provided. The top surface of the isolation stack 202. Such an insulation stack does not include any such grooves 1042 because there is no need for any grooves since the membrane is not attached to the stack 202. This is described in more detail in FIG.

Figure 4 provides a detailed view of an insulating stack 201 of the first type. 4A provides a top view of the stack 201, FIG. 4B provides an exploded view of the stack 201, FIG. 4C provides a cross-sectional view through the AI-AI of the stack 201, and FIG. (AJ) of FIG.

The stack 201 includes insulating panels 102 and 103 and is used to construct the membrane support layer 101. [ The insulation stack 201 includes a cold insulation panel 102 and a warm insulation panel 103. The warm insulation panel 103 may be mounted on the hull / pod wall 106 and the cold insulation panel 102 may be mounted on the inside of the warm insulation panel 103. On the inner surface of the cold insulating panel, an upper panel 104 (preferably made of wood, preferably of plywood) is mounted. The cold and warm insulation panels may have substantially the same dimensions, for example, a thickness of about 100-300 mm (preferably 200 mm), a length of 500-1500 mm (preferably 1000 mm) and a width of 500-1500 mm (preferably 1000 mm) . The insulating panels 102 and 103 are substantially square in plan view.

The hull / pod wall 106 includes a plurality of connection stubs 1061 that pass through the holes of the warm and cold insulating panels 102, 103. The connecting stub 1061 may be threaded and may secure the insulating panels 102 and 103 to the hull / pontoons via the washers 1021 and 1031 and the nuts 1022 and 1033. Holes in the cold insulating panel 102 may be filled into the bump 1023 to insulate the holes and the connecting stub 1061.

On the inner surface of the cold insulating panel, an upper panel 104 is attached. Which may be attached using a connection stub 1061. [ The top panel is preferably plywood and serves to provide, for example, shrinkage control that protects the surfaces of the insulating panels 102, 103 and provides structural support to the insulating panel structure. Additionally, the top panel 104 allows the attachment of the membrane 1 to the membrane support 101 via the attachment 60, as described below.

The upper panel 104 has substantially the same length and width as the insulating panels 102 and 103. However, it has a substantially smaller thickness, for example less than 50 mm, preferably less than 20 mm. The top panel 104 is substantially square.

The top panel 104 of the stack 201 includes at least one groove 1042 for attaching the membrane 1 to the top panel 104. Preferably, each panel 104 may include two grooves 1042 that are substantially parallel. The number of grooves 1042 (or the presence of grooves 1042) can be varied by the designer of the secondary barrier system to allow a desired level of attachment and fixation between the membrane 1 and the membrane support 101, Can be determined and selected. The function of the groove 1042 is described in more detail in Figs. 9, 11 and 13. Fig.

The groove 1042 may have a uniform depth (width of the groove 1042 in the direction in which the groove extends and perpendicular to the direction of the depth of the groove) over the width. However, preferably, the groove includes a deeper section 1042 'and a shallower section 1042 ". The depth of the groove 1042 may be substantially 1-10 mm, preferably about 5 mm.

These two sections 1042 ', 1042 "may extend from opposite sides of the groove 1042. These two sections 1042', 1042 " may have substantially the same width, For example, a deeper section may have a width of 10-30 mm, and a shallower section may have a width of 10-20 mm. The deeper section 1042 'may be deeper than the shallower portion 1042 " by an amount substantially equal to the thickness of the material used to form the membrane 1 (described in more detail below) .

Preferably, the grooves 1042 extend throughout the panel 104.

The top panel 104 of the stack also includes a groove 1041 for housing the welding protection strip 1043. The welding protective strip 1043 may be made of a material that can protect the top panel 104 from welding heat when welding is performed at a location on the welding protective strip 1043. [ The grooves 1041 and the strips 1043 can be located, for example, at locations where the welds are disposed to fix the panels of the membrane 1 together, e.g., where the panels overlap. This position is typically adjacent to the groove 1042 (for obvious reasons in FIGS. 9, 11 and 13). Thus, the strips 1043 and grooves 1041 may be disposed adjacent the grooves 1042 and extend parallel to the grooves 1042. Each groove 1042 may have a groove 1041 adjacent thereto.

The depth of the groove 1041 may be substantially the same as the thickness of the strip 1043 (preferably a depth less than 5 mm, preferably less than 2 mm, preferably less than 1 mm, preferably a depth of the groove 1042) Less). The width of the groove 1041 may be substantially the same as the width of the strip 1043 (preferably the width is 10-100 mm, preferably 30-80 mm, preferably 50-70 mm). The length of the groove 1041 may be substantially the same as the length of the strip 1043, and preferably the length extends over the entire panel 104.

A flexible frame 1024 may be disposed around the periphery of the cold insulating panel 102. This can be a rockwool and act to seal adjacent stacks 201 and box 121 together.

A flexible frame 1034 can be disposed around the periphery of the insulating panel 103. [ This can be a rockwool and act to seal adjacent stacks 201 and box 121 together.

Preferably, the insulating panels 102, 103 comprise a polyurethane foam or are made of a polyurethane foam.

5A-5C illustrate a second insulating stack 202. FIG. This stack 202 is entirely in contact with the stack 201 except that the grooves 1041 or 1043 or the strips 1043 are not present since the membrane 1 is not required when the membrane 1 is not attached to the stack 202 same.

Figures 6a to 6e show a detailed view of box 121. [ Figure 6a provides an exploded view of the box 121, Figure 6b provides a top view of the box 121, Figure 6b provides a side view of the box 121, Figure 6d provides an end view of the box, FIG. 6E provides an enlarged view of the detail view W of the box 121. FIG.

The box 121 includes two portions 122, 123. The box 121 includes a cold box 122 and a warm box portion 123. The warm box portion 123 is mounted on the hull / pod wall 106 and the cold box portion 122 is mounted on the inside of the warm box portion 123. The cold and warm box portions 122 and 123 may have a thickness of, for example, about 100-300 mm (preferably about 200 mm), about 500-1500 mm (preferably about 1000 mm) long, and about 100-500 mm ) Width and the like. The cold box and warm box portions 122 and 123 are generally rectangular in shape and rectangular in plan view. The thickness of the box 121 is substantially equal to the thickness of the stacks 201, 202. The thickness of the cold box portion 122 is substantially the same as the thickness of the cold insulating panel 102. The thickness of the warm box portion 123 is substantially equal to the thickness of the warm insulating panel 103.

The warm box portion 123 takes the form of a closed hollow box. The box portion 123 is preferably formed of a panel of wood. The box portion 123 is filled with an insulating material 1231, such as a polyurethane foam.

The cold box portion 122 takes the form of a closed hollow box. The box portion 122 is preferably formed of a panel of wood. The box portion 122 is filled with an insulating material 1221, such as a polyurethane foam. The top panel 1222 of the cold box portion 122 is also the top panel 1222 of the box 121 as a whole.

Each box portion 122, 123 may be divided into cells 1229, 1239. Each cell 1229, 1239 takes the form of a closed hollow portion of the box portion 122, 123 filled with insulating material 1221, 1231.

The hull / pod wall 106 includes a plurality of connection stubs 1061 that pass through the holes of the warm and cold box portions 122, 123 and the insulating material 1221, 1231. The connecting stub 1061 may be threaded and may secure the box portions 122 and 123 to the hull / dock through the washers 1224 and 1232 and the nuts 1225 and 1233.

The upper portion 1222 of the box 121 includes at least one groove 1227 for attachment of the membrane 1 to the box 121. Preferably, each box 121 may include only one groove 1227. [ The number of grooves 1227 (or the presence of grooves 1227) may be varied by the designer of the secondary barrier system to allow a desired level of attachment and fixation between the membrane 1 and the membrane support 101, Can be determined and selected. The function of the groove 1227 is described in more detail in Figs. 9, 11 and 13. Fig.

The groove 1227 may have a uniform depth across the width (the width of the groove 1227 in the direction in which the groove 1227 extends and perpendicular to the direction of the depth of the groove). However, preferably, the groove includes a deeper section 1227 'and a shallower section 1227 ". The depth of the groove 1227 may be substantially 1-10 mm, preferably about 5 mm. The shape and depth of the groove 1227 may be substantially similar to the shape and depth of the groove 1042.

These two sections 1227 ', 1227 "may extend from opposite sides of the groove 1227. These two sections 1227', 1227" may have substantially the same width, Deep section 1227 'is (slightly) wider than shallower section 1227 ". For example, a deeper section may have a width of 10-30 mm and a shallower section may have a width of 10-20 mm The deeper section 1227 'may be deeper than the shallower portion 1227 " by an amount substantially equal to the thickness of the material used to form the membrane 1 (described in more detail below) ).

Preferably, the groove 1227 extends over the entirety of the box 121.

The upper portion 1222 of the box 121 also includes a groove 1228 for housing the weld protection strip 1223. The welding protective strip 1223 may be made of a material that can protect the top panel 1222 from welding heat when welding is performed at a location on the welding protective strip 1223. [ The grooves 1228 and the strips 1223 can be located where the welds are located, for example, where the panels overlap, to secure the panels of the membrane 1 together. This position is typically adjacent to the groove 1227 (for obvious reasons in Figures 9, 11 and 13). Thus, the strips 1223 and grooves 1228 can be disposed adjacent the grooves 1227 and extend parallel to the grooves 1227. Each groove 1227 may have a groove 1228 adjacent the groove.

The grooves 1227 and / or the grooves 1228 and / or the strips 1223 may have substantially similar shapes and dimensions to the grooves 1042 and / or the grooves 1041 and / or the strips 1043, respectively.

The depth of the groove 1228 may be substantially equal to the thickness of the strip 1223 (preferably a depth less than 5 mm, preferably less than 2 mm, preferably less than 1 mm, preferably a depth of the groove 1227) Less). The width of the groove 1228 may be substantially the same as the width of the strip 1223 (preferably the width is 10-100 mm, preferably 30-80 mm, preferably 50-70 mm). The length of the groove 1228 may be substantially the same as the length of the strip 1223, and preferably the length extends over the entire length of the box 121.

Preferably, the groove 1227 and / or the groove 1228 extend in a direction parallel to the longitudinal direction of the box. Figure 7a shows the cross-section of the membrane 1 and the membrane support layer 101 taken through the intermediate point of the interrupted transverse corrugation 11. As described above, the interrupted lateral corrugation 11 is interrupted in the floor area by the longitudinal corrugation 13.

Figure 5b shows an enlarged detail I of Figure 5a. This shows that the membrane 1 is attached to the hull / pontoon wall 106 at the top edge of the membrane 1. This attachment is preferably accomplished by the weld 22. The membrane 1 extends through the membrane support layer 101 at the location of the weld from the hull / pest wall 106 to the inside of the membrane support layer 101. This preferably occurs at a downward angle in the middle of the vertical and horizontal directions, e.g. about 30 degrees with respect to the vertical direction. To achieve this, the insulation panels 102, 103 and / or the box 121 of the membrane support layer 101 are configured to allow the membrane 1 to pass through the membrane support layer 101 to the hull / . The top of the membrane 1 (i.e., the top of the vertical panels 2, 4) can be curved so that the membrane 1 extends through the membrane support layer 101. However, there may be an upper corner piece 55, 55 '(as seen in Figure 1) that preferably connects to another partially vertical panel 56, 57, which extends through the membrane and has a hull / Respectively.

The corner piece 55 may be a non-corrugated corner piece when the corner piece connects two non-corrugated panels 57,4. However, similar to the other corner pieces described above, the corner pieces 55 'are arranged in such a way that when the corner pieces connect the two corrugated panels 2, 56 to provide a continuous, uninterrupted corrugation, Lt; / RTI >

Figure 7c shows an enlarged detail view K of Figure 7a (additional details are provided in Figure 11). This shows a cross-sectional view of the interruption of the interrupted corrugation 11. As shown, the individual ends of the two transverse corrugated panels 12 overlap with the longitudinal corrugation panel 11 (20). These panels are welded together.

Fig. 7d shows an enlarged detail view J of Fig. 7a. Which shows a cross section of a corrugated corner piece 6 'joining a horizontally transverse corrugated panel 12 and a partially vertically corrugated panel 3. [ As can be seen, the corrugation is continuous, that is, it is not interrupted here. Each end of the corrugated panel 3, 12 overlaps (20) with the corner piece 6 '. The panel and the corner piece are welded together. The radius of curvature of the corner piece may be about 10 mm. A more detailed description of the connection between the panels 3, 12 and the corner piece 6 'is provided below with respect to FIG. 10c.

FIG. 7E shows an enlarged detail view L of FIG. 7A. Which shows a cross section of a corrugated corner piece 5 'joining a vertically corrugated panel 2 and a partly vertically corrugated panel 3. As can be seen, the corrugation is continuous, that is, it is not interrupted here. Each end of the corrugated panel 2, 3 overlaps (20) with the corner piece 5 '. The panel and the corner piece are welded together. The radius of curvature of the corner piece may be about 30 mm. Further details of the connection between the panel 2, 3 and the edge portion 5 'are provided below in connection with Figure 9c.

As can be seen from Fig. 7, the lateral corrugation, which extends horizontally and vertically to one side of the membrane 1 horizontally and vertically, can only be interrupted at the horizontal / floor portion of the membrane 1. The lateral corrugation may be continuous on the corner piece and the side wall.

FIG. 8A shows a cross-section of the membrane 1 and the membrane support layer 101 taken through the midpoint of the non-interrupted transverse corrugation 15. As described above, the non-stopped transverse corrugation 15 is not interrupted in the floor area by any longitudinal corrugation 13.

FIG. 8B shows an enlarged detail view O of FIG. 8A. This shows that the membrane 1 is attached to the hull / pontoon wall 106 at the top edge of the membrane 1. This attachment is preferably accomplished by the weld 22 shown in FIG. 7B. The membrane 1 extends through the membrane support layer 101 at the location of the weld to the inside of the membrane support layer 101. This preferably occurs at a downward angle in the middle of the vertical and horizontal directions, e.g. about 30 degrees with respect to the vertical direction. In order to achieve this, the insulation panels 102, 103 and / or the wood box 121 of the membrane support layer 101 may be configured to allow the membrane 1 to pass through the membrane support layer 101 to the hull / . The top of the membrane 1 (i.e., the top of the vertical panels 2, 4) can be curved so that the membrane 1 extends through the membrane support layer 101. However, there may be upper corner pieces 55, 55 'that preferably connect to other, partially vertical panels 55, 56, which extend through the membrane 101 and are attached to the hull / pontoon.

The corner piece 55 may be a non-corrugated corner piece when the corner piece connects two non-corrugated panels 57,4. However, similar to the other corner pieces described above, the corner pieces 55 'are arranged in such a way that when the corner pieces connect the two corrugated panels 2, 56 to provide a continuous, uninterrupted corrugation, Lt; / RTI >

FIG. 8C shows an enlarged detail view N of FIG. 8A. Which shows a cross section of a corrugated corner piece 6 'joining a horizontally laterally uncorrected panel 15 and a partially vertically corrugated panel 3. As can be seen, the corrugation is continuous, that is, it is not interrupted here. Each end of the corrugated panel 3, 15 overlaps (20) with the corner piece 6 '. The panel and the corner piece are welded together. The radius of curvature of the corner piece may be about 10 mm. A more detailed description of the connection between panel 3, 15 and corner piece 6 'is provided below with respect to FIG. 10c.

Figure 8d shows an enlarged detail view M of Figure 8a. Which shows a cross section of a corrugated corner piece 5 'joining a vertically corrugated panel 2 and a partly vertically corrugated panel 3. As can be seen, the corrugation is continuous, that is, it is not interrupted here. Each end of the corrugated panel 2, 3 overlaps (20) with the corner piece 5 '. The panel and the corner piece are welded together. The radius of curvature of the corner piece may be about 30 mm. Further details of the connection between the panel 2, 3 and the edge portion 5 'are provided below in connection with Figure 9c.

As can be seen from the embodiment of Figure 8, even though the uninterrupted corrugation consists of separate components 15, 6 ', 3, 5', 2, 55 ', 56, And extends substantially horizontally and vertically to the other side.

FIG. 9A shows a top view of detail P of the membrane 1 highlighted in FIG. 1B. It shows how the transverse corrugated panel 12, the transversely uncorrelated panel 16, the longitudinal panel 14 and the support member plate 51 interact to form the membrane 1.

With respect to the exemplary transverse corrugated panel 2, 3, 12, 15, 56, the length of the panel may be between 0.5 m and 10 m, or between 1 and 10 m, and the exact length may, for example, , A suspended panel 12, or a non-suspended panel. The corrugated panels 2, 3, 12, 15 and 56 are generally planar and rectangular in shape and substantially extend through the entire length L of the panel 2, 3, 12, 15, As shown in FIG. The corrugation 41 is located at the midpoint of the width of the panel.

The panels 2, 3, 12, 15 and 56 constitute a central portion 42 which preferably comprises the majority of the panels 2, 3, 12, 15 and 56 and the two end cap portions 43 . The end cap portions 43 each include a tapered corrugation 44 and taper the corrugation 44 to a flat end 405. The end cap portion 43 is preferably about 100-500 mm long, preferably 200 mm long. The taper radius of the corrugation 44 in the end cap may be about 100 mm.

Figure 9b shows an enlarged view of the detail view Q showing in greater detail how the transversely corrugated panel 11 is connected and sealed to the longitudinally corrugated panel 14. [ As shown, the end cap 43 is attached to the central portion 42 by an overlap 46 and an underlap 46 'welded to both the central portion 42 and the end cap 43. The overlap / underlap 46 may be about 10-100 mm and may have a length (maybe even larger or smaller) than the width of the transversely corrugated panel 12. The overlap 46 may have a length that is less than or longer than the underlap 46 '; The overlap 46 may have a width that is less than or greater than the underlap 46 '. Between the overlap 46 and the under wrap 46 ', the end portion 43 meets the central portion 42 in a single-ended manner. The overlap 46 and the under wrap 46 'extend in the longitudinal direction.

The end of the transverse corrugated panel (e.g., the end portion of the flat portion 45 of the end cap 43) may overlap or underlap 20 with the longitudinally corrugated panel. In addition, the shortest end of the transverse noncorrelation panel 16 may overlap or underlap 20 with the longitudinally corrugated panel 13. In addition, the transversely extending edges of the transversely corrugated panel 12 may overlap or underlap 20 with the transversely extending edges of the adjacent transverse uncorrected panel 16. This is described in more detail in Figures 9d and 9e.

Figure 9c shows the corrugated corner pieces 5 ', 6', 55 '. When the corrugated panels 2, 3, 12, 15, 56 are attached to the corrugated corner pieces 5 ', 6', 55 ' The end piece 43 may be omitted. Thus, it is the central portion 42 of the panel 2, 3, 12, 15, 56 attached to the corner pieces 5 ', 6', 55 '. In this way, the corrugation need not be tapered and can be continuous so that it is not effectively interrupted by the corner pieces 5 ', 6', 55 '. The central portion 42 may be attached to the corner pieces 5 ', 6', 55 'using overlap and underlap as described above for the end piece 43. The corner pieces may have two planar sections separated by a corner section and extending from any angle relative to each other (preferably from about 100-130 degrees, for example about 115 degrees as shown in Figure 9c) . The corner section may have a radius of curvature of about 30 mm, and the two planar sections may extend about 150 mm from the corner section.

Figure 9d shows a cross-sectional view of the membrane 1 taken through line AG-AG shown in Figure 9b. FIG. 9E shows an exploded view of FIG. 9D. Although shown with respect to the transversely corrugated panel 12, a similar system may be used in which the corrugation is interrupted at the membrane 1 or any other corrugated panel or corrugated piece in which any corrugated panel extends vertically It is used when meeting.

Beginning with the left side, the corrugated lateral panel 12 overlaps (20) with the uncorrected panel 16. These panels 12 and 16 are welded together to seal the membrane 1. The weld protection 1043 in the groove 1041 protects the membrane support 101 from heat during the welding process. The non-corrugated panel 16 is attached to the membrane support 101 through the groove 1042 and the depression retainer 48. This attachment 60 is described in more detail in Fig.

The overlap of both panels 16,12 is an overlap 46 '. As mentioned above, this is a strip of material used to attach the end piece 43 to the central portion 42 of the corrugated panel 12. [ The underlap of the corrugated panel 12 is an underlap 46 '. As mentioned above, this is a strip of material used to attach the end piece 43 to the central portion 42 of the corrugated panel 12. [ It has a shorter length than the overlap 46. The uncorrected panel 16 is attached to the membrane support 101 through a groove 1042 and a depression retainer 48, as discussed in more detail in FIG. The overlap 46 and the underlap 46'are welded to the corrugated panel 12 (i.e., both the central portion 42 and the end piece 43) to form a seal, Welded to the corrugated panel.

Since the underlap 46 'and the uncorrected panel 16 are attached to the membrane support 101 and the corrugated panel 12 is attached to the uncorrected panel 16, And are attached in a slidable, inflatable manner, as described below with respect to FIG.

10A shows a longitudinal section of the membrane 1 and the membrane support layer 101 taken through the midpoint of the longitudinal corrugation 13. As described above, the bell-directed corrugation 13 is stopped in the floor area by the non-interrupted transverse corrugation 15.

Figure 10B shows the enlarged detail view R of Figure 10A. This shows the interruption plane of the interrupted longitudinal corrugation 13. As shown, the individual ends of the two longitudinally-corrugated panels 14 overlap (20) with the lateral corrugation panel 15. These panels are welded together.

FIG. 10C shows an enlarged detail view S of FIG. 10A. This shows a cross-section of the corrugated corner piece 19 'connecting the corrugated panel 18 of the end wall with the horizontal longitudinal corrugated panel 14. As can be seen, the corrugation is continuous, that is, it is not interrupted here. Each end of the corrugated panel 14,18 overlaps the corner piece 19 '. The panel and the corner piece are welded together. The radius of curvature of the corner piece may be about 10 mm. More details on the connection between the panels 14, 18 and the corner piece 19 'are provided below in connection with FIG. 11c.

Fig. 10D shows an enlarged detail view T of Fig. 10A. This shows that the membrane 1 is attached to the hull / pontoon wall 106 at the top edge of the membrane 1. Such attachment is preferably achieved by welding. The membrane 1 extends through the membrane support layer 101 at the location of the weld to the inside of the membrane support layer 101. This preferably occurs at a downward angle in the middle of the vertical and horizontal directions, e.g. about 30 degrees with respect to the vertical direction. In order to achieve this, the insulation panels 102, 103 and / or the wood box 121 of the membrane support layer 101 may be configured to allow the membrane 1 to pass through the membrane support layer 101 to the hull / . The top of the membrane 1 (i.e., the top of the vertical panels 2, 4) can be curved so that the membrane 1 extends through the membrane support layer 101. However, there may be an upper corner piece 65, 65 'which preferably partially connects to the vertical panel 65, 67, which extends through the membrane 101 and attaches to the hull / pontoon.

The corner piece 65 may be a non-corrugated corner piece when the corner piece connects two non-corrugated panels 67,17. However, similar to the other corner pieces described above, the corner pieces 65 'are arranged in such a way that when the corner pieces connect the two corrugated panels 66, 18 to provide a continuous, uninterrupted corrugation, Lt; / RTI >

As can be seen from Figure 10, the longitudinal corrugation extending horizontally and vertically both from one end of the membrane 1 to the other end can only be interrupted at the horizontal / floor portion of the membrane 1 . The longitudinal corrugation may be continuous over the corner piece and the end wall.

Fig. 11A shows a top view of detail U of the membrane 1 highlighted in Fig. 1B. It is to be appreciated how the longitudinally-facing corrugated panel 14, the transversely uncorrelated panel 16, the transversely corrugated panel 12 and the support member plate 51 interact to form the membrane 1 Respectively.

With respect to the exemplary transverse longitudinal panels 14,18, 66, the length of the panel may be between 0.5 m and 10 m, or between 1 and 10 m, and the exact length may depend, for example, (12) or may be a non-suspended panel. The corrugated panel 14, 18, 66 is generally planar, rectangular in shape, and comprises a corrugation 41 extending substantially in the longitudinal direction of the rectangle through the entire length L of the panels 14, 18, . The corrugation 41 is located at the midpoint of the width of the panel.

The panels 14,18 and 66 constitute a central portion 42 which preferably constitutes the majority of the panels 14,18 and 66 and the two end cap portions 43. [ The end cap portions 43 each include a tapered corrugation 44 and taper the corrugation 44 to a flat end 405. The end cap portion 43 is preferably about 100-500 mm long, preferably 200 mm long. The taper radius of the corrugation 44 in the end cap may be about 100 mm.

Figure 11B shows an enlarged view of detail V, showing in more detail how the longitudinally corrugated panel 14 is connected and sealed to the transversely corrugated panel 15. As shown, the end cap 43 is attached to the central portion 42 by an overlap 46 and an underlap 46 'welded to both the central portion 42 and the end cap 43. The overlap / underlap 46 may be about 10-100 mm and may have a length (maybe even larger or smaller) than the width of the transversely corrugated panel 12. The overlap 46 may have a length that is less than or longer than the underlap 46 '; The overlap 46 may have a width that is less than or greater than the underlap 46 '. Between the overlap 46 and the under wrap 46 ', the end portion 43 meets the central portion 42 in a single-ended manner. The overlap 46 and the under wrap 46 'extend transversely.

The end of the longitudinally corrugated panel (e.g., the end of the flat portion 45 of the end cap 43) may overlap or underlap 20 with the laterally corrugated Lap 15 board . In addition, the shortest end of the transverse noncorrelation panel 16 may overlap or underlap 20 with the longitudinally corrugated panel 14. In addition, the transversely extending edges of the transversely corrugated panel 15 may overlap or underlap 20 with the transversely extending edges of the adjacent transverse uncorrected panel 16. This is described in more detail in Figures 11d and 11e.

Figure 11C shows the corrugated corner pieces 19 ', 65' and shows the corrugated corner pieces 19 ', 65'. The corrugated panels 14,18 and 66 are attached to the corrugated corner pieces 19 'and 65' and the associated end pieces 43 of the panels 14,18 and 66 may be omitted. Thus, it is the central portion 42 of the panels 14,18, 66 attached to the corner pieces 19 ', 65'. In this way, the corrugation need not be tapered and may be continuous so as not to be interrupted effectively by the corner pieces 19 ', 65'. The central portion 42 may be attached to the corner pieces 19 ', 65' using overlap and underlap as described above for the end piece 43. The corner pieces are separated by a corner section and may have two planar sections extending about one another at an angle a (preferably about 90 degrees). Alternatively, as shown in Fig. 11C, the corner pieces may have each of the three planar sections extending at an arbitrary angle relative to each other such that the total angle of the corner pieces is about 90 degrees. For example, there can be two corner sections separating the three flat sections, each corner section having an angle of 135 degrees. The or each corner section may have a radius of curvature of about 30 mm. The or each planar section may extend about 100 mm from the corner section.

11D shows a cross-sectional view of the membrane 1 taken through line AH-AH shown in Fig. 11A. FIG. 11E shows an exploded view of FIG. 11D. Although shown for the longitudinally corrugated panel 14, a similar system may be used with other corrugated panels or corner pieces, where any corrugation is interrupted at the membrane 1, or any corrugated panel extends vertically It is used when meeting.

Starting from the left side, the corrugated longitudinal panel 14 overlaps (20) with the uncorrected panel 16. These panels 14 and 16 are welded together to seal the membrane 1. Since the groove 1041 extends in the lateral direction, the panel 16 does not appear attached to the groove 1041 in Fig. 11D as shown in Fig. 9D.

The overlap of both panels 16,14 is an overlap 46 '. As mentioned above, this is a strip of material used to attach the end piece 43 to the central portion 42 of the corrugated panel 12. [ The underlap of the corrugated panel 12 is an underlap 46 '. As noted above, this is a strip of material used to attach the end piece 43 to the central portion 42 of the corrugated panel 14. [ It has a shorter length than the overlap 46. The uncorrected panel 16 is attached to the membrane support 101 through a groove 1042 and a depression retainer 48, as discussed in more detail in FIG. The overlap 46 and the under wrap 46'are welded to the corrugated panel 14 (i.e., both the central portion 42 and the end piece 43) to form a seal, Welded to the corrugated panel.

Since the underlap 46 'and the uncorrected panel 16 are attached to the membrane support 101 and the corrugated panel 14 is attached to the uncorrected panel 16, And are attached in a slidable, inflatable manner, as described below with respect to FIG.

12A shows a cross-sectional view of the membrane 1 and the membrane support layer 101 taken through the non-corrugated panels 4, 16, 57 and the support member 50 for supporting the primary barrier.

Each support member 50 is attached to the hull / dock and extends through the membrane support layer 101 and the membrane 1. The support member 50 can be sealed to the membrane 1 adjacent the support member by the support member plate 51. [

 The support member 50 includes an insulating material for preventing heat from flowing through the support member. This insulating material may be a polyurethane foam and / or a glass fiber reinforced epoxy. The support member 50 may also include a metal frame / structure to provide strength to the support member 50.

The support plate member 51 is arranged to seal the membrane 1 adjacent the support member. The support member plate 51 is oriented so as to be substantially in the entire plane of the membrane 1 at the position of the support member. The plate can be made of Invar.

As shown in FIG. 12B, this shows enlarged detail G in FIG. 12A, the membrane 1 overlaps with the support plate 51 and is welded (53) to the support plate. The overlap 52 may preferably be at least or about 3 mm. The support plate 51 may be integral with the support member 50 or may be a separate piece sealed to the support member.

There are a plurality of support members (50). The support member 50 is disposed on the floor of the hull / dock and / or the ceiling and / or the wall of the hull / dock. The support member 50 is generally evenly distributed in a grid-like pattern to provide uniform support to the primary barrier and to maintain the overall symmetry of the secondary barrier.

Fig. 12C shows an enlarged detail view of Fig. 12A. And shows how the membrane 1 is directly attached to the membrane support layer 101 by the attachment 60. [ Each attachment 60 is attached to a shallow portion 1227 'of the groove 1127 including a depression retainer in the form of a wedge 48 that is threaded into the groove 1227. The depression retainer 48 has a substantially uniform thickness so that there is a gap 1227 " between the deeper portion 1227 ' of the groove 1227 and the depression retainer 48. [ This allows the depression 130 (in this case corner portion 6) of the membrane 1 to extend into the gap 1227 " 'to be held against movement perpendicular to the plane of the membrane 1. However, the membrane 1 may slide in the plane of the membrane 1 and be held by the attachment 60. Adjacent to the attachment 60, another portion of the membrane (e.g., panel 16) is attached to the portion 6 secured to the membrane support 101. This is accomplished by a weld 53 which is capable of sealing portions of the membrane 1 to each other. The welding protection portion 1223 is provided under the position of the welding portion 53. At least in the position of detail F, at least the panel 6 is not attached to the depression retainer 48 but is held only on the membrane support 101 through the weld 53.

The portion 16 of the membrane 1 welded to the portion 6 of the membrane 1 secured to the membrane support 1 via the attachment 60 comprises the relief portion 140. The embossed portion 140 allows the portion 16 to overlap the portion 6 while allowing the remainder of the membrane 1 to abut the membrane support 101 to maintain the same height.

As will be appreciated, such an attachment 60 (i.e., a first membrane component that is retained in the groove of the membrane support layer but still includes a slidable depression, and another membrane component that overlaps the depression and is secured and sealed to the first membrane component May use any combination of membrane components discussed herein, e.g., corner portions, end caps, corrugated panels, non-corrugated panels, support plates, and the like.

With reference to Figure 12d, this shows the enlarged detail view H of Figure 12a. This shows the corner section of the membrane support layer 101. It comprises a first box 121 attached to the floor of the hull / dock and having insulation panels 102 and 103, adjacent to the corners of the membrane support layer 101 and having a first box 121 attached to the floor of the hull / And a second box 121 positioned adjacent to the corner of the membrane support layer 101 and attached to the sidewall of the hull / hold. The box 121 and the corner portion 105 are preferably filled with an insulating material such as a polyurethane foam.

13A shows a cross-sectional view of the membrane 1 in the lateral direction. The cross section shows two adjacent transverse corrugated panels 12,15 therebetween and a non-transversely corrgated panel 16 therebetween. The exploded view of Figure 13A is shown in Figure 13C.

Beginning with the left side of Fig. 13A, there is a transversely corrugated panel 12,15. Which is overlapped (20) and welded to the first non-corrugated lateral panel (161). The second uncorrected panel 162 is overlapped 20 and welded to the first uncorrected transverse panel 161. The third non-corrgated panel 163 is overlapped 20 and welded to the second non-corrugated lateral panel 162. The second non-corrugated panel 164 is overlapped 20 and welded to the third non-corrugated lateral panel 163. The other transverse corrugated panels 12,15 are overlapped 20 and welded to the fourth non-corrugated transverse panel 164.

Membrane 1 is attached to the membrane support via a plurality of fixings 60, one of which is shown in greater detail in detail (detail AK). There is only one fixing portion 60 between the membrane 1 and the membrane support 101 for each position where the two panels 12, 15, 16, etc. are bonded together.

13B, the first non-corrugated transverse panel 161 includes a depression 130. As shown in FIG. The depression 130 extends transversely along the length of the edge of the first non-corrugated lateral panel 161. The depression 130 interacts with the groove 1042, which also extends parallel to the depression 130. This causes the depression 130 to slide laterally in the groove when the membrane expands and contracts due to thermal effects.

The depression 130 has a stepped shape. The depression 130 includes a depressed portion 132 oriented parallel to the remainder of the first non-corrugated panel 161. The recessed planar portion 132 may be connected to the remainder of the first uncorrected panel 161 through a step 131 that extends substantially perpendicular to the remainder of the first uncorrected panel 161.

The recessed planar portion 132 has a length that is substantially the same as the length of the first uncorrected panel 161. The recessed planar portion 132 has a width that is less than the width of the deeper portion of the groove 1042 'and preferably the width of the recessed planar portion 132 is less than the width of the deep portion of the groove 1042' 2 mm, 3 mm, 4 mm, 5 mm or 10 mm (or at least 1 mm, 2 mm, 3 mm, 4 mm, 5 mm or 10 mm). This causes the recessed planar portion 132 to slide longitudinally within the deeper portion of the groove 1042 'when the membrane expands and contracts due to thermal effects.

The depth of the recessed planar portion (e.g., the length of the step 131) is approximately equal to the depth of the deeper portion of the groove 1042 '. This allows the first non-corrugated panel 161 to abut the membrane support layer 101 while allowing the recessed planar portion 132 to abut the bottom of the deeper portion of the groove 1042 ' So that they can be seated at the same height.

The distance between adjacent grooves 1042 in the membrane support 101 is substantially equal to the distance between the depressions 130 of the uncorrected panel (s) 16.

The depression retainer 48 is disposed in the groove 1042. [ The depression retainer 48 has a length substantially equal to the length of the groove 1042. [ The depression retainer 48 may have a width that is less than the width of the groove 1042 but is greater than the width of the shallow portion of the groove 1042 ". The depression retainer 48 has a thickness substantially equal to the depth of the shallow portion of the groove 1042 ". The depression retainer 48 is secured to the bottom of the shallower portion of the groove 1042 " by a screw or a plurality of screws, for example. The depression retainer 48 is secured in a shallower portion of the groove 1042 " so that there is a gap 49 between the depression retainer 48 and the edge of the deeper groove portion 1042 '. This gap 49 allows the depression 130 (e.g., the step 131) to pass between the edge of the deeper groove portion 1042 'and the depression retainer 48, So that the first non-corrugated panel 161 can slide in the longitudinal direction when the membrane 1 expands and contracts. The gap 49 can be up to 1 mm, 2 mm, 3 mm, 4 mm, 5 mm or 10 mm (or at least 1 mm, 2 mm, 3 mm, 4 mm, 5 mm or 10 mm).

A second uncorrected panel 162 is disposed over the edge and depression retainer 48 of the first uncorrected panel 161. The second non-corrgated panel 162 overlaps the first non-corrgated panel 161. The second non-corrugated panel 162 is welded (53) to the first non-corrugated panel (161).

The second uncorrected transverse panel 162 includes an embossed portion 140. The embossed portion 140 extends transversely along the length of the edge of the second uncorrected transverse panel 162. The embossed portion 140 overlaps (20) the first non-corrugated panel (161). The embossed portion 140 is oriented parallel to the remainder of the second uncorrected panel 162.

The embossed portion 140 has a length that is substantially the same as the length of the second non-corrugated panel 162. The embossed portion 140 may be embossed by an amount substantially equal to the thickness of the first non-corrugated panel 161 and possibly the thickness of the second uncorrected panel 162 (the thickness of these panels being the same can do). This allows the second non-corrugated panel 162 to abut the membrane support layer 101 and seat it at the same height while allowing the embossed portion 140 to abut the first non-corrugated panel to seat at the same height I will.

A thermal protection material 1043 disposed in the grooves 1041 in the membrane support 101 is between the first non-corrugated panel and the membrane support layer at a location below the overlap 20 and the weld 53. The thermal protection material 1043 protects the membrane support 101 from the heat of the weld.

As can be seen from the above description, the fixation portion 60 allows the thermal expansion and contraction of the membrane 1 in both the longitudinal and transverse directions while allowing the membrane 1 to be attached to the membrane support 101 Allow.

Each of the securing portions 60 between the different adjacent panels 12,15,16, etc. may be substantially similar and one panel with the depression is retained in the groove by the depression retainer, Lt; / RTI >

With reference to Fig. 13C, the corrugated panels 12,15 do not have any indentations, but rather they overlap the adjacent uncorrected panels 161,166. The first uncorrected panel 161 includes (only) two depressions 130 and does not include the embossed portion. The second non-corrugated panel 162 is formed by (only) one embossed portion 140 (overlapping the depression 130 of the first non-corrugated panel 161) and (only) (130). The third non-corrgated panel 163 is substantially the same as the second non-corrgated panel 162. Thus, the third non-corrgated panel 163 is (only) one embossed portion 140 (overlapping the depression 130 of the second non-corrgated panel 162) and (only) one And includes a depression 130. The fourth non-corrgated panel 164 is substantially the same as the second non-corrgated panel 162. Thus, the fourth non-corrgated panel 164 is (only) one embossed portion 140 (overlapping the depression 130 of the third non-corrgated panel 163) and (only) one And a depression 130 (overlapped by the corrugated panels 12 and 15).

Of course, other configurations are possible.

14 shows the first non-corrgated panel 161 in more detail. This shows two depressions 130 extending along the majority of the length of the panel 161. It should be noted that the depressions 130 need not extend along the entire length of panel 161. At one (only) end of panel 161, panel 161 includes an embossed portion 140 for overlapping another panel, such as longitudinally corrugated panel 14 or support plate 51. This embossed portion 140 extends along the entire width of the panel 161 and is welded to the overlapped panel so that the membrane 1 can be completely sealed.

14B shows the cross section of Fig. 14A taken along line X-X.

Fig. 14C shows an enlarged view of detail Y of Fig. 14B. Here, the depression 130 can be seen.

15A shows the second or third non-corrgated panel 162, 163 in more detail. (Only one) depression 130 extends along most of the length of panel 162, 163. It should be noted that the depressions 130 need not extend along the entire length of panel 161. There may be an embossed portion 140 along the other length side of the panel 162, 163. The embossed portion 140 extends along the entire length of the panel 161 and is welded to the overlapped panel so that the membrane 1 can be completely sealed.

At the (only one) end of the panels 162 and 163 the panels 162 and 163 are embossed to overlap other panels such as the longitudinal corrugated panel 14 or the support panel 51 140). This embossed portion 140 extends along the entire width of the panel 161 and is welded to the overlapped panel so that the membrane 1 can be completely sealed.

15B shows a cross section of Fig. 15A taken along line Z-Z.

Figure 15C shows an enlarged view of detail AA of Figure 15B. Here, the embossed portion 140 can be seen.

16A shows the fourth non-corrgated panel 164 in more detail. (Only one) depression 130 extends along the majority of the length of the panel 164. It should be noted that the depressions 130 need not extend along the entire length of the panel 164. There is an embossed portion 140 along the other length side of the panel 164. This embossed portion 140 may extend completely along the entire length of the panel 164 and be welded to its overlapped panel so that the membrane 1 can be completely sealed.

At one (only) end of panel 164, panel 164 includes an embossed portion 140 for overlapping another panel, such as longitudinally corrugated panel 14 or support plate 51. This embossed portion 140 extends along the entire width of the panel 164 and is welded to the overlapped panel, the membrane 1 can be completely sealed.

16B shows a cross-sectional view of FIG. 16A taken through line AB-AB.

16C shows a cross-sectional view of FIG. 16A taken on line AC-AC.

Figure 16d shows an enlarged view of the detail view AD of Figure 16c. Here, the embossed portion 140 can be seen.

The panels 161, 162, 163, 164 may have substantially the same length or may have different lengths. The panels 161 and 164 may have a substantially similar width. The panels 162 and 163 may have a substantially similar width. The panels 162 and 163 may have a smaller width than the panels 161 and 164.

17A shows the end cap 43 described above in more detail. The end cap 43 includes a corrugation 44 tapered to a flat end 45. The end cap portion 43 is preferably about 100-500 mm long, preferably 300 mm long. The width of the end cap portion 43 is substantially equal to the width of the corrugated panel (e.g., 12, 14, 15, etc.) to which it is attached. The taper radius R of the corrugation 44 in the end cap may be between 10-100 mm, preferably between about 50-70 mm.

Figure 17B shows a cross-sectional view of the end cap 43 along line AE-AE in Figure 17A.

17C shows a cross-sectional view of the end cap 43 via line AF-AF in Fig. 17A.

18 shows an example of a primary barrier 200 that can be used with the secondary barrier described above in a barrier system. The primary barrier 200 can be located in the secondary barrier and can be supported by the at least one support member 50 and / or the support member plate 51 of the secondary barrier. The primary barrier 200 is a tank. The primary barrier 200 may have a size and shape that can fit within the secondary barrier. The primary barrier 200 may be formed similar to the secondary barrier, and may have a similar shape, but may have a smaller dimension, for example. The tank 200 may be supported only at multiple locations by the support member 50 and may be self-supporting so as not to continuously support the area, unlike the GTT primary barrier.

Claims (28)

A secondary barrier system for a hull or hold of a ship or vessel, said secondary barrier system comprising:
Membrane; And
And a membrane support layer attachable to the hull or the dock for supporting the membrane against the hull or dock,
Said membrane comprising:
A plurality of panels that cover at least a portion of the membrane support layer and are sealed to each other such that liquid does not pass through the membrane,
The plurality of panels comprising at least one corrugated panel including therein at least one corrugation;
The membrane being attached directly to the membrane support layer by one or more attachments; And
Wherein the at least one attachment and the at least one corrugation are configured such that when the membrane undergoes thermal expansion and contraction, the membrane contacts the membrane support layer to relieve stresses of the membrane induced by thermal expansion and contraction of the membrane. Wherein the secondary barrier system is arranged to slide relative to the secondary barrier system. The secondary barrier system of claim 1, wherein the membrane is made of, or at least comprises, a material comprising Invar. 3. The method according to claim 1 or 2,
The plurality of panels each comprising a plurality of corrugated panels having a corrugation extending in a linear direction; And
Wherein the plurality of corrugated panels are arranged such that at least one panel is oriented such that its corrugation extends in a first direction and at least one panel is arranged such that its corrugation extends in a second direction, And one direction is perpendicular to the second direction. The method of claim 3,
An end of a first corrugated panel extending in the first direction is joined to a side of a second corrugated panel extending in the second direction,
An end of a third corrugated panel extending in the second direction is bonded to a first side of the first corrugated panel,
An end of a fourth corrugated panel extending in the second direction is bonded to a second side of the first corrugated panel opposite the third corrugated panel,
Wherein the third and fourth corrugated panels can co-linearly extend. 5. Membrane support layer according to any one of claims 1 to 4, wherein the membrane support layer comprises a corner joining two or more substantially planar sections, the membrane having at least one corner piece wherein the at least one corner piece is sealed to at least one of the plurality of panels in each of the flat sections. 6. The method of any one of claims 1 to 5, wherein the at least one attachment is configured such that when the membrane undergoes thermal expansion and contraction, the membrane is moved in the direction of the entire plane of the membrane relative to the membrane support layer. And wherein the secondary barrier system is configured to be able to slide at least a portion of the at least one attachment. 7. The system of claim 6, wherein the at least one attachment is configured to allow sliding in both dimensions of the entire plane of the membrane. 8. The method of any one of claims 1 to 7, wherein the at least one attachment comprises:
A groove in the membrane support layer;
A sunken portion in one of said panels, said depression being located in said groove; And
Wherein the groove, the depression and the depression retainer are formed such that when the membrane undergoes thermal expansion and / or contraction, the depression has a depression for retaining the depression within the depression, Wherein the second barrier system is configured to be slidable in the second barrier system. 9. The secondary barrier system of claim 8, wherein the adjacent panel overlaps the recess, the depression and the depression retainer and is attached to the depression and the panel and sealed. 10. The secondary barrier system of claim 8 or 9, wherein the depression is located at an edge of the panel. 11. A secondary barrier system according to any one of the preceding claims, wherein the membrane support layer comprises at least one box. 12. The secondary barrier system of claim 11, wherein the at least one box is located at a corner portion of the membrane support layer. 13. The system of any one of claims 1 to 12, wherein the membrane support layer comprises at least one top panel on an inner surface of the membrane support layer. 14. A method according to any one of claims 1 to 13, comprising at least one support member for supporting a primary barrier, wherein the support member is configured such that the load of the primary barrier does not pass through the remainder of the secondary barrier And is configured to be substantially transmissive to the hull or dock via a support member. 15. The method of claim 14, wherein at least one of the at least one support member is attachable to the hull or dock, the support member extending through the membrane support layer and the membrane, Wherein the support member is arranged to substantially transmit the load of the primary barrier through the support member to the hull or the dock without through the remainder of the secondary barrier. 16. A method according to claim 14 or 15, wherein at least one of the at least one support member is supported by a support member support, the support member support being capable of supporting the support member and attachable to the hull or the dock, The support member and the support member support are arranged such that the load of the primary barrier can be substantially transferred to the hull or the dock through the support member and the support member support without through the remainder of the secondary barrier, system. 17. The secondary barrier system of claim 16, wherein the support member support supports a support member plate on which the support member is seated or on which the support member is attached or on which the support member is integrally formed. 18. The secondary barrier system according to any of claims 14 to 17, wherein the support member comprises an insulating material for preventing heat from flowing through the support member. In a barrier system
A secondary barrier system as claimed in any one of claims 14 to 18; And
Said primary barrier comprising:
The primary barrier being supported by the at least one support member; Wherein the primary barrier is a tank. 20. A barrier system according to any one of the preceding claims, wherein the components of the secondary barrier system are arranged such that the membrane is substantially symmetrical. A barrier system for ships or hulls of ships or vessels, said barrier system comprising:
Wherein the secondary barrier includes a membrane support layer that is attachable to the hull or pile to support the membrane against the membrane and the hull or pile,
Wherein the secondary barrier comprises at least one support member for supporting the primary barrier and wherein the support member is configured such that the load of the primary barrier is transmitted through the support member to the hull, And is arranged to be substantially transferable to the dock. 22. The method of claim 21 wherein at least one of the at least one support member extends through the secondary barrier and is sealed to the membrane adjacent the support member, And is attachable to the hull or dock so as to substantially communicate with the hull or dock through the support member without through the rest of the barrier. 23. A method according to claim 21 or 22, wherein at least one of the at least one support member is supported by a support member support, the support member support supports the support member and is attachable to the hull or the dock, So that the load of the secondary barrier can be substantially transferred to the hull or the dock through the support member and the support member support without through the remainder of the secondary barrier. 24. The barrier system of claim 23, wherein the support member support supports a support member plate on which the support member is seated or on which the support member is attached or on which the support member is integrally formed. 25. A barrier system according to any one of claims 21 to 24, wherein the primary barrier is a tank. 26. The barrier system of any one of claims 21 to 25, wherein the support member comprises an insulating material to prevent heat from flowing through the support member. 27. A device according to any one of claims 21 to 26, wherein the support member comprises or is attached to a support member plate arranged to be sealed to the membrane adjacent to the support member, In a substantially entire plane of the membrane. 28. A barrier system according to any one of claims 19 to 27, comprising the features of any one of claims 1 to 18.

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