CN204507799U - There is the immersion type inner floating roof of honeycomb case buoyancy unit - Google Patents

Abstract

A liquid-immersed inner floating roof with a buoyancy unit of a honeycomb box belongs to the technical field of inner floating roof oil tanks and is used to solve the defect of unreasonable design of the existing honeycomb inner floating roof. The liquid-immersed inner floating roof with honeycomb box buoyancy unit of the utility model includes a floating plate; the floating plate includes a plurality of main girders (1) and a plurality of sub-beams vertically connected with the main girders (1). (2) A frame consisting of an outer ring beam surrounding the peripheral edge of the frame; the main beam (1), the auxiliary beam (2), and the outer ring beam form a plurality of installation spaces; each of the At least two buoyancy units (3) are arranged in the installation space; the buoyancy units (3) include a hollow casing and a honeycomb core (4) arranged in the casing. The beneficial effects of the utility model are: the quantity of required auxiliary beams or frames is reduced, the production cost is reduced, and the installation process is simplified.

Description

Submerged inner floating roof with honeycomb box buoyancy unit

technical field

The utility model relates to the technical field of inner floating roofs, in particular to a liquid-immersed inner floating roof with honeycomb box buoyancy units.

Background technique

In the field of petrochemical storage technology, in order to prevent environmental pollution and safety hazards caused by medium escape and reduce volatilization losses, a large number of buoy-type inner floating roofs are currently used in China, and buoys are used as buoyancy units, but the distance between the buoy-type inner floating roof and the liquid surface There is still oil and gas space between them, the sealing performance is not ideal, and there are potential safety hazards.

In recent years, several honeycomb inner floating roofs have appeared at home and abroad, and these inner floating roofs use the honeycomb box structure as the buoyancy unit. The upper part of these honeycomb boxes is a cover plate, and the lower part is a basin-shaped structure, and the honeycomb core is installed in the basin-shaped structure without contact with the medium. The basin-type honeycomb box body is installed in a single frame, which makes the frame structure of the inner floating roof complex and wastes material, which increases the difficulty of installation and increases the cost of production and installation.

Utility model content

In order to overcome the deficiencies of the above-mentioned prior art, the purpose of this utility model is to provide a liquid-immersed inner floating roof with a buoyancy unit of a honeycomb box.

The technical scheme of the utility model is: a liquid-immersed inner floating roof with a buoyancy unit of a honeycomb box, including a floating plate; frame, an outer ring beam surrounding the outer edge of the frame; the main beam, the auxiliary beam, and the outer ring beam form a plurality of installation spaces; each installation space is provided with at least two buoyancy unit; the buoyancy unit includes a hollow shell, a honeycomb core arranged in the shell, and the shell includes a box body and a box cover; the box body is a square chamber with the bottom and surroundings sealed and the top completely open , it is characterized in that: the side plates constituting the surroundings of the box include long side plates on the front and rear sides and short side plates on the left and right sides, and one end of the short side plates facing the opening end of the box body has a fixed connection extending outward. The fixed side is fixedly connected with the main beam, and the height of the long side plate is greater than the height of the short side plate; the box cover includes a bottom plate and a cover side plate perpendicular to the front and rear edges of the bottom plate , the length of the cover side plate is less than the length of the bottom plate, the length of the cover side plate is equal to the length of the long side plate, the cover is closed on the top of the box and the end of the bottom plate The upper part is fixedly connected with the fixed edge, the side panel of the cover is closely attached to the inner side of the long side panel; the box cover and the honeycomb core are tightly bonded.

The end of the bottom plate is glued to the fixed edge.

The floating disc is provided with a roller device.

The utility model has the beneficial effects of reducing the number of required sub-beams or frames, enhancing the sealing performance, improving the strength, excellent safety performance, reducing production costs, simplifying the installation process, and being more safe and applicable.

Description of drawings

Fig. 1 is a schematic diagram of the buoyancy unit in the inner floating roof in the embodiment of the utility model.

Fig. 2 is the front view of the box cover and the box body in the utility model embodiment.

Fig. 3 is a side sectional view after the box cover and the box body are installed in the embodiment of the utility model.

Fig. 4 is a connection structure between adjacent buoyancy units in the embodiment of the present invention.

1. Main beam, 2. Sub beam, 3. Buoyancy unit, 31. Tank cover, 311. Cover side plate, 312. End of bottom plate, 32. Box body, 321. Long side plate, 322. Short side plate, 3221. Fixed edge, 4. Honeycomb core, 5. Roller device, 6. Sealing strip.

Detailed ways

The specific embodiment of the utility model is described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 4, the liquid-immersed inner floating roof with the buoyancy unit of the honeycomb box in the embodiment of the utility model includes a main beam 1, an auxiliary beam 2, a buoyancy unit 3, and a roller device 5.

There are multiple main beams 1 and multiple auxiliary beams 2. The secondary beam 2 is located between adjacent main beams 1 and is perpendicular to the main beam 1 . The main beam 1 and the auxiliary beam 2 form a frame structure, and the frame structure forms a plurality of installation spaces. The outer edge of the entire frame structure is surrounded by a ring of outer ring beams. The frame structure and outer ring beams play a supporting role. Outriggers are installed below the main beam 1 and the outer ring beam.

The frame structure forms a plurality of installation spaces, and there are at least two buoyancy units 3 in the installation spaces.

The buoyancy unit 3 includes a hollow casing and a honeycomb core 4 arranged in the casing.

The hollow casing includes a box body 32 and a box cover 31 arranged on the top of the box body 32 .

The honeycomb core 4 is an aluminum honeycomb core, which is resistant to oil corrosion and has good sealing performance. The honeycomb core 4 is fixedly installed in the box body 32 .

The box body 32 is a square chamber structure formed by bending a whole metal plate that can be cut and formed. Its top is completely open, its bottom is sealed, and its sides are welded and connected. The front and rear sides are called long side panels 321 , and the left and right sides are called short side panels 322 . The height of the long side board 321 is greater than the height of the short side board 322 .

One end of the short side plate 322 facing the top of the box body 32 is bent outward to form a fixed edge 3221 . The fixed edges 3221 on both sides of the box body 31 and the end 312 of the bottom plate of the box cover 31 overlap the main beam 1 on both sides of the buoyancy unit 3 and are fixedly connected with the main beam 1 .

The case cover 31 is arranged on the top of the case body 32 . The box cover 31 is a plate-shaped structure formed by bending a whole piece of metal plate that can be cut and shaped, with front and rear sides. The front and rear sides of the case cover 31 are called cover side panels 311 . The cover side plate 311 is perpendicular to a part of the bottom plate of the case cover 31, and the length of the cover side plate 311 is shorter than the length of the bottom plate. The bottom plate of the case cover 31 is closely glued to the honeycomb core 4, which can improve the strength of the case body 32, thereby enhancing the strength of the entire floating tray.

The length of the cover side plate 311 is equal to the length of the long side plate 321 . The box cover 31 is tightly covered on the top of the box body 32, and the end 312 of the bottom plate of the box cover 31 is equal in length to the fixed edge 3221 and the two are glued together. The cover side plate 311 is tightly connected to the inner side of the long side plate 321 .

Adjacent buoyancy units 3 are provided with sealant strips 6, as shown in Figure 4, and bolts are also used to securely connect the cover side plates 311, long side plates 321, and sealant strips 6 of the two buoyancy units 3, thereby Increased strength and enhanced sealing performance.

In the utility model, since the bottom and surroundings of the honeycomb core 4 are completely closed, and are blocked from the medium, the medium cannot penetrate into the box body 32, and then cannot penetrate into the honeycomb core 4, which double guarantees the sealing performance of the entire buoyancy unit 3 and fundamentally eliminates the The possibility of sinking was eliminated. At the same time, the structure of the box body 32 makes it only necessary to connect two adjacent buoyancy units 3 through the sealing strip 6 and the bolts, without overlapping the subbeam 2 or the frame, which not only reduces the cost of the subbeam 2 Or the number of frames, reducing material consumption, thereby reducing production costs, and increasing strength.

The embodiments of the present utility model have been described in detail above, but the content described is only a preferred embodiment of the present utility model, and cannot be considered as limiting the implementation scope of the present utility model. All equal changes and improvements made according to the application scope of the utility model should still belong to the scope covered by the patent of the utility model.

Claims (3)

1. The immersion type inner floating roof with the buoyancy unit of the honeycomb box comprises a floating plate; the floating plate comprises a plurality of main girders (1), a plurality of secondary girders ( 2) A frame consisting of an outer ring beam surrounding the peripheral edge of the frame; the main beam (1), the auxiliary beam (2), and the outer ring beam form a plurality of installation spaces; each of the At least two buoyancy units (3) are arranged in the installation space; the buoyancy unit (3) comprises a hollow housing, a honeycomb core (4) arranged in the housing, and the housing comprises a box body (32) and box cover (31); the box body (32) is a square chamber with bottom and surrounding seals and a fully open top, characterized in that: the side plates forming the sides of the box body (32) include the long sides of the front and rear sides plate (321) and short side plates (322) on the left and right sides, one end of the short side plate (322) towards the open end of the box body (32) has a fixed edge (3221) extending outward, and the fixed side The edge (3221) is fixedly connected with the main beam (1), and the height of the long side plate (321) is greater than the height of the short side plate (322); the box cover (31) includes a bottom plate and the The cover side plate (311) vertical to the front and rear side edges of the bottom plate, the length of the cover side plate (311) is less than the length of the bottom plate, and the length of the cover side plate (311) is equal to the long side plate (321) The length of the box cover (31) covers the top of the box body (32) and the end (312) of the bottom plate is fixedly connected with the fixed side (3221), and the cover side plate ( 311) is closely attached to the inner side of the long side plate (321); the box cover (31) and the honeycomb core (4) are tightly bonded. 2. The liquid-immersed inner floating roof with honeycomb box buoyancy unit according to claim 1, characterized in that: the end (312) of the bottom plate is glued to the fixed side (3221). 3. The liquid-immersed inner floating roof with honeycomb box buoyancy unit according to claim 1, characterized in that: said floating plate is provided with a roller device (5).