JP2022050044A - Bag body for heat insulation material and heat insulation material placed in the same - Google Patents

Abstract

To provide a bag body for a heat insulation material which enables easy attachment/detachment of a heat insulation material regardless of an object shape, and to provide a heat insulation material placed in the bag body.SOLUTION: A bag body 10 for a heat insulation material includes: a bag shaped body 20 including an insertion port 23 through which a heat insulation material body 30 is housed; a string-like body which fixes the bag shaped body 20 to a heat insulation object; and a passage member 24 which is provided at the outer side of the bag shaped body 20 and allows the string-like body to pass therethrough to fix the string-like body to the heat insulation object. A heat insulation material 1 placed in the bag body includes: the bag body 10 for a heat insulation material; and a heat insulation material body 30 housed in the bag body 10 for the heat insulation material.SELECTED DRAWING: Figure 1

Description

The present invention relates to a bag for heat insulating material and a heat insulating material contained in the bag.

Various heat insulating materials are used to cover and insulate heat equipment such as heat exchangers and hot / cold water tanks, and their piping and mechanical equipment.
For example, in the water storage device disclosed in Patent Document 1, the heat insulating material of the inorganic fiber molded body is stored in a bag-like material composed of a breathable cloth and a non-breathable film, and a string, an adhesive tape, a stapler, and a clip are stored. The outside of the water reservoir is covered with a stopper such as.
Further, in the heat insulating cover for a radiator disclosed in Patent Document 2, a ceramic iron containing glass fiber in a bag-shaped main body of a silicon-coated glass cloth exterior material and an interior material made of aramid felt. A three-layer fiber-based heat insulating material consisting of a first layer of mat, a felt-like second layer in which resin is bound to rock wool, and a third layer of aramid felt is put in to cover heat dissipation equipment. I try to fix it with a string.

Japanese Unexamined Patent Publication No. 2009-299967 Japanese Unexamined Patent Publication No. 2009-127684

When the above heat insulating material is put in a bag-shaped body or bag and the heat equipment is covered and fixed with a string or the like, fixing at the time of installation is complicated, and the heat insulating material is removed at the time of maintenance of the heat equipment. In some cases, there is a problem that the work becomes complicated. Further, depending on the shape of the heat device to be heat-insulated, there is a problem that it is difficult to fix the string or the like due to the displacement during the work.

The present invention has been made in view of the above problems and the current situation, and an object of the present invention is to provide a bag for heat insulating material and a heat insulating material contained in the bag, which can be easily attached and detached regardless of the target shape. And.

The bag for heat insulating material according to the first aspect of the present invention that solves the above problems is
A bag-shaped body with an insertion slot in which the main body of the heat insulating material is housed, and
A string-shaped body that fixes the bag-shaped body to the heat insulating object, and
A through member provided on the outside of the bag-shaped body, through which the string-shaped body is passed and fixed to the heat insulating object, is provided.
It is characterized by that.

It is preferable that the through member is configured with a plurality of different widths corresponding to the width of the string-like body.

It is preferable that the through member is configured by being arranged at a plurality of places.

The bag-like body is preferably composed of polyvinyl chloride (PVC) tarpaulin.

The heat insulating material contained in the bag according to the second aspect of the present invention that solves the above problems is
With any of the above-mentioned heat insulating bag bodies,
A heat insulating material main body housed in the heat insulating material bag body is provided.
It is characterized by that.

It is preferable that the heat insulating material main body is configured to have a thickness necessary for heat insulating the heat insulating object.

The heat insulating material main body is preferably a plate-shaped polyurethane foam having flexibility or a bendable plate-shaped rigid polyurethane foam.

The heat insulating material body preferably has a thermal conductivity of 0.024 W / (m · K) or less.

According to the present invention, the heat insulating material can be easily attached and detached regardless of the target shape.

The present invention relates to an embodiment of a bag for heat insulating material and a heat insulating material contained in the bag, in which (a) is a front view and (b) is a rear view. It is a development view of another embodiment of this invention. It is a schematic perspective view of the string-like body which concerns on one Embodiment of this invention. It is attached to the bendable heat insulating board of one embodiment of the present invention, (a) is a schematic perspective view, and (b) is an explanatory view of a bent state. It is a schematic perspective view which shows together with the heat insulation object of one Embodiment of this invention.

Hereinafter, an embodiment of the heat insulating material bag and the heat insulating material contained in the bag of the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 to 5, the heat insulating material bag 10 of the present invention has a bag-shaped body 20 having an insertion port 23 in which the heat insulating material main body 30 is housed, and the bag-shaped body 20 fixed to the heat insulating object A. It is configured to include a string-shaped body 40, and a through member 24 provided on the outside of the bag-shaped body 20 to pass the string-shaped body 40 and fix it to the heat insulating object A.
Further, the heat insulating material 1 put in the bag body of the present invention includes a heat insulating material bag body 10 and a heat insulating material main body 30 housed in the heat insulating material bag body 10. That is, the heat insulating material 1 put in the bag body is configured by accommodating the heat insulating material main body 30 in the heat insulating material bag body 10 (see FIGS. 1 to 5).

The bag-shaped body 20 constituting the heat insulating material bag 10 is for installing and fixing the heat insulating material main body 30 placed inside to the outside of the heat insulating object A, and is covered with the heat insulating material main body 30. It functions as a cover that covers the heat insulating material main body 30 itself.
The bag-shaped body 20 is fixed to the outside of the body a of the outdoor hot water tank, which is an example of the heat insulating object A, for example.
The bag-shaped body 20 has a length L having a margin such as a stacking allowance for not forming a gap at both ends in the outer peripheral length of the body a of the outdoor hot water tank, and a width B corresponding to the height of the body a. It is formed into a rectangle consisting of (see FIG. 1 and the like). The bag-shaped body 20 is formed on the front member 21 and the back member 22 in a rectangular flat shape having a margin of length L and a margin of width B to secure a space for accommodating the heat insulating material main body 30 inside. The bag-shaped body 20 is formed in an envelope shape by providing an insertion port 23 for the heat insulating material main body 30 at at least one of four locations around the rectangular flat shape.

The bag-shaped body 20 may have a rectangular three-dimensional shape having a side member (not shown) having a depth (thickness, gusset) to secure a space for accommodating the heat insulating material main body 30 inside. Further, the insertion port 23 may be provided not only at one place but also at two places (two-way seal) or three places (three-way seal), and when the side member forming the thickness is provided, the side member may be provided. It suffices to leave one end of both ends open without closing.

The bag-shaped body 20 is not limited to the one formed in the shape of a rectangular envelope for the body portion a according to the shape of the heat insulating object A, and as shown in FIG. 2, for example, the top plate portion b of the outdoor hot water tank. A bag-shaped body 20A formed in a cylindrical shape with a bottom is prepared to cover and insulate the bottom plate portion c. The bag-shaped body 20A includes a bag-shaped disk member 25 consisting of a disk-shaped front member 21A on the front and back surfaces and a back member 22A, and two rectangular front and back side members 26 continuous on the outer circumference of the disk-shaped member 25. It is integrally formed into a cylindrical shape with a bottom. An insertion port 23A for inserting the heat insulating material main body 30 is formed in each of the disk member 25 and the side member 26 of the bottomed cylindrical bag-shaped body 20A. The side member 26 arranged on the body portion a of the heat insulating object A is a side member of the heat insulating material main body 30 of the bag-shaped body 20 without inserting the heat insulating material main body 30 as one side member 26 of only the front member. The body portion a on which the 26 is located may be insulated.

The bag-shaped bodies 20 and 20A are provided with a plurality of passing members 24 and 24A through which a string-shaped body 40 for fixing to the heat insulating target A is passed through the front members 21 and 21A. As the string-like body 40, for example, a belt, a string, a rope, or the like is used, and the material thereof is cloth, woven cloth, synthetic resin, metal, or the like.
As shown in FIG. 1A, the bag-shaped body 20 has through members 24 having three through holes 27 arranged at three locations in the length L direction (circumferential direction), and the width B direction (height direction). ) Are arranged at three locations side by side on a straight line, and through members 24 having a total of nine through holes 27 are arranged.
The through member 24 is not limited to a string-like body 40 having a constant width, for example, a through member 24 having a through hole 27 corresponding to a belt, and is formed by changing the width of the through hole 27 to form a string. The position of the body 40 may be shifted by the width of the through hole 27. Further, through holes (not shown) wider than the width of the through holes 27 may be alternately arranged with the through holes 27. In that case, since one bag can handle a plurality of belts having different widths, the heat insulating material can be attached to the heat insulating target A simply by appropriately selecting the belt to be used according to the shape of the heat insulating target A.

As shown in FIG. 2, the bag-shaped body 20A has three through members 24A having through holes 27A for the string-shaped body 40 (see FIGS. 3 and 5) in the side member 26 at three positions in the length L direction. It is arranged. Further, a plurality of through members 24A of the string-like body 40 are provided on the front member of the disk member 25, and through holes 27A are formed at two locations in each of two orthogonal directions and one location at the center. be. The through member 24A provided on the disk member 25 may be omitted, and the bag-shaped body 20A may be fixed by the string-shaped body 40 only by the through member 24A provided on the side member 26.

The through members 24, 24A of the string-shaped body 40 are arranged and configured at a plurality of locations, and are straight lines along the length L direction and the width B direction as shown in the illustrated example, depending on the shape of the heat insulating object A. Not limited to the case of arranging on the top, although not shown, other arrangements may be used. Or they may be arranged along a spiral. Further, the threading members 24 and 24A may be arranged so that the string-shaped body 40 can be easily passed through each of the heat insulating objects A, or may be arranged in advance in the bag-shaped bodies 20 and 20A having a predetermined size. It may be used for general purposes.

The bag-shaped bodies 20 and 20A are subjected to partial punching or partial slitting so that they can be attached while avoiding piping, etc., according to the shape of the heat insulating object A, and the bag around the end of the partially processed portion is covered with a bag. Close with a sheet made of the same material as the shapes 20 and 20A, a sheet made of other materials, and adhesive tape.

As long as the heat insulating material bag body 10, 10A is a material of the bag-shaped body 20, 20A and does not hinder the contact with the heat insulating target A and does not hinder the installation environment of the heat insulating target A, The material is not particularly limited, and different materials may be used for the front members 21 and 21A and the back members 22 and 22A. By changing the material of the bag-shaped bodies 20 and 20A according to the heat insulating object A, it is possible to have high temperature resistance characteristics, moisture resistance characteristics and the like. It can also compensate for defects such as UV deterioration, water resistance, and fire resistance. As the material of the bag-shaped bodies 20 and 20A, for example, a polyvinyl chloride (PVC) tarpaulin or the like is preferable in terms of water resistance and weather resistance.
Further, for waterproofing, it is a laminate of a resin and a base cloth, and examples of the resin include thermoplastic resins such as polyvinyl chloride, thermoplastic polyurethane (TPU), polyethylene, polyolefins such as polypropylene, and polyethylene terephthalate. Examples of the base fabric using polyester include synthetic fibers, natural fibers, woven fabrics of inorganic fibers, knitted fabrics, and non-woven fabrics. Further, there are those in which a metal vapor-deposited film and aluminum foil are laminated for heat resistance, and those in which layers having moisture resistance, heat resistance and ultraviolet protection are laminated.

The heat insulating material main body 30 is housed in the bag-shaped bodies 20 and 20A and functions as a heat insulating material, and heats the heat insulating material by covering the heat insulating object A.
The heat insulating material main body 30 may be selected depending on the heat insulating characteristics required for the heat insulating target A, and is not particularly limited. Glass wool, which is a fiber-based heat insulating material, may be used, but since the heat insulating performance is low (for example, the thermal conductivity of high-performance glass wool: 0.035 W / (m · K)), it has a face material with high heat insulating performance. It is preferable to use a rigid polyurethane foam (insulation board) (for example, the thermal conductivity of the rigid polyurethane foam: 0.024 W / (m · K)). If the heat insulation performance is the same, the construction thickness can be reduced by using the heat insulation board, and the heat insulation can be made compact.
Further, by using the plate-shaped heat insulating board, it can be easily accommodated in the bag-shaped bodies 20 and 20A, the shape can be maintained, and the handleability and workability are excellent as compared with the fiber-based heat insulating material.

As the heat insulating material main body 30 of the rigid polyurethane foam, for example, a bendable heat insulating board 31 that can be attached to a curved surface portion is preferable (see FIG. 4).
The bendable heat insulating board 31 is obtained by combining a core material 32 of a rigid polyurethane foam with a specific face material 33. That is, the bendable heat insulating board 31 is a bendable heat insulating board 31 in which a rigid polyurethane foam is used as a core material 32 and face materials 33 are laminated on both sides thereof, in accordance with JIS P8113 of the face material 33. The measured specific tensile strength is 5.0 Nm / g or more and 13.0 Nm / g or less in the length direction X and the width direction Y of the core material 32.
The bendable heat insulating board (hereinafter, may be simply referred to as a heat insulating board) 31 is difficult to bend by the rigid polyurethane foam alone, but has a specific specific tension in the length direction X and the width direction Y of the core material 32. Since the face material 33 having strength is laminated on both sides, it can be easily bent while maintaining the strength of the rigid polyurethane foam. Therefore, the heat insulating board 31 can be used for the heat insulating material main body 30 of the object having a curved surface portion.

Further, it is preferable that the tensile elongation at break measured in accordance with JIS P 8113 of the face material 33 is 25% or more and 35% or less in the length direction X and the width direction Y of the core material 32.
In the length direction X and the width direction Y of the core material 32, the face material 33 has a specific specific tensile strength and a specific tensile breaking elongation, so that the force required for bending the heat insulating board 31 is suppressed and bending is performed. Can be made easier.

Further, it is preferable that the thickness of the core material 32 made of the rigid polyurethane foam is 5 mm or more and 50 mm or less. The thicker the core material 32, the better the heat insulating performance, but if it is too thick, it becomes difficult to bend it. By setting the thickness of the core material 32 to 5 mm or more and 50 mm or less, the heat insulating board 31 having excellent heat insulating performance and being easily bent can be obtained.

Further, it is preferable that the heat insulating board 31 has a thermal conductivity of 0.024 W / (m · K) or less (a value measured according to JIS A 9511) of the core material 32. As a result, the heat insulating board 31 having high heat insulating performance can be obtained.

The core material 32 made of a rigid polyurethane foam is a foam obtained by mixing and reacting, for example, a polyisocyanate, a polyol made of a polyether polyol or a polyester polyol, a foaming agent, and a foam stabilizer. Further, if necessary, various additives generally used in the production of rigid polyurethane foam such as catalysts and flame retardants may be added.

As the polyol used for the rigid polyurethane foam, a polyester polyol or a polyether polyol can be preferably used, and one of these may be used alone or two or more thereof may be used in combination.

Examples of the polyester polyol include a polyol obtained by condensing a polyhydric alcohol with a polyvalent carboxylic acid and a polyol composed of a cyclic ester ring-opening polymerization. Examples of the polyvalent carboxylic acid include polyols composed of succinic acid, glutanic acid, adipic acid, suberic acid, azelaic acid, sebacic acid, maleic acid, fumaric acid, phthalic acid, terephthalic acid, isophthalic acid and anhydrides thereof. On the other hand, examples of the polyhydric alcohol include ethylene glycol, propylene glycol, glycerin, trimethylolpropane, pentaerythritol, sorbitol, shoeclaw, and bisphenol A. Among them, as the polyester polyol, a polyester polyol having an aromatic ring is particularly preferable.
The hydroxyl value of the polyester polyol is not particularly limited, but is preferably 100 to 400 mgKOH / g.

Examples of the polyether polyol include alcohols such as aliphatic alcohols, aromatic alcohols and the above polyhydric alcohols; aliphatic amines such as ethanolamine, diethanolamine, triethanolamine and ethylenediamine; and toluenediamine and methylenedianiline. Aromatic amines; polyether polyols obtained by addition-polymerizing one or more of alkylene oxides such as ethylene oxide, propylene oxide, butylene oxide to Mannig condensate and the like can be mentioned, and these polyether polyols include One type can be used alone, or two or more types can be used in combination as appropriate.
Among them, as the polyether polyol, the aromatic polyether polyol is particularly preferable because it lowers the thermal conductivity.
The hydroxyl value of the polyether polyol is not particularly limited, but is preferably 300 to 800 mgKOH / g.
Further, a polymer polyol in which a polymer component such as vinyl acetate, polyacrylonitrile, or polyacrylonitrile / styrene copolymer is dispersed in a polyether polyol may be used. In particular, a polymer polyol in which vinyl acetate or a polyacrylonitrile / styrene copolymer is dispersed in a polyether polyol is preferably used.

Polyisocyanates to be reacted with polyols include diphenylmethane diisocyanate (MDI), polypeptide diphenylmethane diisocyanate (polymeric MDI), etc .; these modified polyisocyanates, i.e. products obtained by partial chemical reaction of polyisocyanates, such as esters. Polyisocyanates containing groups such as urea, burette, allophanate, carbodiimide, isocyanurate, urethane; and the like.
One of these polyisocyanates may be used alone, or two or more thereof may be used in combination as appropriate.

The amount of the polyisocyanate used is preferably such that the isocyanate index represented by the following formula (1) is 30 to 300, and more preferably 80 to 150.
Isocyanate index = NCO group / active hydrogen of polyol × 100 (1)

As the foaming agent, at least one selected from water, HFC, HC, HFO, and carbon dioxide can be used. Examples of the HFC include 1,1,1,3,3-pentafluoropropane (HFC245fa), 1,1,1,3,3-pentafluorobutane (HFC365mfc) and the like. Examples of HC include normal pentane, isopentane, cyclopentane, isobutane and the like. The HFOs include tetrafluoropropene (HFO1234), trifluoropropene (HFO1243), 1-chloro-3,3,3-trifluoropropene (HFO1233), and tetrafluorobutene (2,4,4,4-tetrafluoro). Examples thereof include HFO1354) other than butene-1, pentafluorobutene (HFO1345), hexafluorobutene (HFO1336), heptafluorobutene (HFO1327), heptafluoropentene (HFO1447), octafluoropentene (HFO1438), nonafluoropentene and the like. .. Examples of carbon dioxide include carbon dioxide in a liquid state, a subcritical state, and a supercritical state.
As the foaming agent, water, HFC, HC, HFO, and carbon dioxide may be used alone or in combination of two or more. The amount of the foaming agent used is preferably 5 to 40 parts by mass per 100 parts by mass of the above-mentioned polyol.

As the catalyst, an amine catalyst, a metal catalyst, or the like that have been generally used in the past can be used.
As the amine catalyst, a reactive amine catalyst (a compound having an active hydrogen group in the molecule) is particularly suitable, and for example, dimethylmethanolamine, dimethylethanolamine, 2- [methyl [2- (dimethylamino) ethyl] amino. ] Ethanol (TMAEEA), 2- [2- (dimethylamino) ethoxy] ethanol (DMAEE), 1,3-bis (dimethylamino) -2-propanol (TMHPDA), 4-methylpiperazin-1-ethanol, 3, Examples thereof include 3'-[3- (dimethylamino) propylimino] bis (2-propanol) (Thancat-DPA), 2-morpholinoethanol and the like. Commercially available products such as TOYOCATR X7 (Tosoh Corporation), Polycat 16, Polycat 17, and DabcoWT (Air Products) can also be used.
As the metal catalyst, for example, stanas octoate; dibutyltin dilaurylate; lead octylate; potassium salts such as potassium acetate and potassium octylate can be used. In addition to these amine catalysts and metal catalysts, quaternary ammonium salts of fatty acids such as formic acid and acetic acid can also be used.
One of the above catalysts may be used alone, or two or more of them may be used in combination as appropriate. The amount of the catalyst used is preferably about 0.1 to 15 parts by mass with respect to 100 parts by mass of the polyol.

As the defoaming agent, a defoaming agent known in the art can be used. For example, Tegostab® B8232, B8841, B8443, B8465, B8486, B8466, B8450 (all from Evonik Degussa Japan Co., Ltd.); SF-2936F, SF-2937F, SF-2938F, SF-2945F, SZ-1605, A foam stabilizer such as SZ-1642, SZ-1671, etc. (all of which are Toray Dow Corning Co., Ltd.) can be used.
One of these defoaming agents may be used alone, or two or more of them may be used in combination.

As shown in FIG. 4, the face material 33 has a specific tensile strength of 5.0 Nm / g or more and 13.0 Nm / g or less in the length direction X and the width direction Y of the core material 32. When the specific tensile strength is less than 5.0 Nm / g, the heat insulating board 31 is easily bent, but the face material 33 may be torn due to repeated bending, and the durability may be inferior. Further, when the specific tensile strength exceeds 13.0 Nm / g, it is difficult to bend the heat insulating board 31. The specific tensile strength is a value measured in accordance with JIS P8113.
Here, as shown in FIG. 4, the core material 32 can bend the heat insulating board 31 by using the face material 33 having a specific specific tensile strength in both the X direction and the Y direction. For example, when the specific tensile strength of the face material 33 is larger in the X direction than in the Y direction, the heat insulating board 31 tends to bend along the Y direction.

Further, the face material 33 preferably has a tensile elongation at break of 25% or more and 35% or less in the length direction X and the width direction Y of the core material 32. When the tensile elongation at break is less than 25%, it becomes difficult to bend the heat insulating board 31, and when it exceeds 35%, it becomes easy to bend, but the heat insulating board 31 warps and the dimensional stability deteriorates. The tensile elongation at break is a value measured in accordance with JIS P 8113.

As the face material 33, for example, a synthetic resin film, a non-woven fabric, a metal-deposited film, or the like can be used individually or in combination of a plurality of laminated materials.
Examples of the synthetic resin film include polyester films such as polyethylene films, polypropylene films and polyethylene terephthalate films, polyvinyl chloride films, and synthetic paper mixed with inorganic substances. Then, in order to improve the adhesiveness with the rigid polyurethane foam as the core material, for example, corona treatment may be performed.
Non-woven fabrics include synthetic fibers such as polyester fiber, nylon fiber, vinylon fiber, acrylic fiber, polyurethane fiber and polyolefin fiber, natural fiber such as cotton, linen, silk and wool, and inorganic fiber such as glass fiber, carbon fiber and metal fiber. One type or a mixture of two or more types can be used.
Examples of the metal-deposited film include aluminum foil, copper foil, iron foil, lead foil and the like, and lightweight aluminum foil can be preferably used.

The method for manufacturing such a heat insulating board 31 is not particularly limited.
For example, if one face material 33 is unwound on a conveyor, a rigid polyurethane foam raw material is discharged onto the conveyor, and then the other face material 33 is unwound from above to sandwich the rigid polyurethane foam, continuous production can be achieved. It is possible.
Alternatively, a pre-made rigid polyurethane foam block may be cut out into a plate shape to form a core material 32, and a face material 33 may be bonded to the surface thereof with an adhesive or the like to form a heat insulating board 31.

Such a heat insulating board 31 can be easily bent while maintaining the strength of the rigid polyurethane foam. The heat insulating board 31 may be evaluated by the minimum radius that can be bent (minimum bending radius). As shown in FIG. 4B, the minimum bending radius is the radius R of the virtual circles that overlap when the heat insulating board 31 is bent most when a force is applied to both ends. Although the minimum bending radius R differs depending on the thickness and length of the heat insulating board 31, the heat insulating board 31 preferably has a minimum bending radius of 1000 mm or less.
As a result, the heat insulating board 31 can be easily bent while maintaining the strength of the rigid polyurethane foam, so that it is possible to insulate the curved surface portion, and it is easy to fix the heat insulating board 31 to the curved surface portion. It is hard to dent even if it is placed or dropped, and it has excellent workability during heat insulation construction.

The heat insulating material main body 30 made of the bendable heat insulating board 31 of such a rigid polyurethane foam is housed in the bag-shaped body 20. The heat insulating material main body 30 is housed side by side from the insertion port 23 of the bag-shaped body 20, and the insertion port 23 is housed by bending and closing the sheet of the bag-shaped body 20. Further, when the bag-shaped bodies 20 and 20A are partially punched or partially slit so that they can be attached to the bag-shaped bodies 20 and 20A in accordance with the shape of the heat insulating object A while avoiding piping and the like, the heat insulating material main body 30 The heat insulating material main body 30 is prevented from being arranged in the partially processed portion by subjecting the same partial processing to the above. In this case, after the partially processed heat insulating material main body 30 is housed in accordance with the partially processed positions of the bag-shaped bodies 20 and 20A, the periphery of the end portion of the partially processed portion is a sheet made of the same material as the bag-shaped bodies 20 and 20A. It may be closed with a sheet or tape made of other materials.

The heat insulating material 1 put in the bag is fixed to the heat insulating target A through the string 40 through the through holes 27 and 27A of the through members 24A of the bag 20 and 20A.
The string-like body 40 is configured by including a buckle 42 on a cloth belt 41, for example, as shown in FIG. The material of the string-shaped body 40 is not particularly limited, and may be any material such as synthetic resin or metal that can be fixed to the heat insulating object A. Further, the length and width of the string-shaped body 40 may be appropriately determined, and may be selected in consideration of workability and the like. Further, the string-shaped body 40 is not limited to the case where it is composed of one string, and a plurality of strings may be connected by a buckle 42 or the like for use. Further, the string-shaped bodies 40 may be crossed with each other and wound around to be fixed.

Further, as the heat insulating material main body 30, a urethane board in which polyurethane foam is covered with front and back materials can be used, and the urethane board is housed in the bag-shaped body 20 as a flexible urethane board.
As the flexible urethane board, by adopting a polyurethane foam having an open cell structure, it is possible to make a heat insulating board having excellent flexibility and self-restoring property as compared with a rigid polyurethane foam, and it becomes a heat insulating board having excellent heat insulating property.
This polyurethane foam is a urethane board in which face materials are laminated on the front and back surfaces, and the polyurethane foam has a density of 5 to 40 kg / m ³ and a hardness of 30 to 80 as measured by an F-type Asker rubber hardness tester. Moreover, it is a foam having an open cell structure having a closed cell ratio of 0 to 10%, and the urethane board has a dimensional change rate (thickness reduction rate when opened after compression by 50%) of 10% or less. .. Further, the face material is preferably made of a laminate of a nonwoven fabric and a synthetic resin film.
Such urethane boards have excellent flexibility and self-restoring property as compared with conventional rigid polyurethane foams having a closed cell structure and polystyrene foams such as beaded polystyrene foam (EPS) and extruded polystyrene foam (XPS). In addition, it is a polyurethane foam having excellent heat insulating properties as compared with flexible foam and fiber-based heat insulating materials (see Patent No. 6120682).

Such a flexible urethane board is inserted into the bag-shaped body 20 from the insertion port 23 and closed by bending the sheet of the insertion port 23, similarly to the heat insulating material main body 30 provided with the bendable heat insulating board 31. Will be housed in. Similarly, when the bag-shaped body 20A is used, the flexible urethane board is housed as the heat insulating material main body 30.

By accommodating the heat insulating material main body 30 in the bag-shaped bodies 20 and 20A in this way, the heat insulating material 1 put in the bag body is configured and attached to the heat insulating object A.
The heat insulating material 1 put in the bag body is, for example, as shown in FIG. 5, the heat insulating material 1 put in the bag body using the bag-shaped body 20 is previously formed as a string-shaped body 40 in the through member 24 of the bag-shaped body 20. For example, pass the belt 41 through. In this case, it is sufficient to pass at least one belt 41 through the threading member 24 at a position convenient for temporary fixing (position with good workability, etc.).
The heat insulating material 1 put in the bag is wound around the body a of the heat insulating object A, and is fixed by the belt 41 and the buckle 42. The heat insulating material 1 put in the bag is attached by the plurality of belts 41 passed through the through portion 24 to insulate the body portion a.
By using a bendable heat insulating board 31 as the heat insulating material main body 30 in the heat insulating material 1 put in the bag body, even a rigid polyurethane foam can be heat-insulated by bending and attaching along the body a. .. Further, by using the heat insulating material 1 contained in the bag body containing the flexible urethane board, the heat insulating material 1 can be bent and attached along the body portion a by utilizing the flexibility.

The heat insulating material 1A in which the heat insulating material main body 30 is housed in the bag-shaped body 20A is fixed to the top plate portion b and the bottom plate portion c of the heat insulating object A by the belt 41 and the buckle 42. In this case, the belt 41 for fixing the bag-shaped body 20A may be folded back and fixed to the belt 41 for fixing the bag-shaped body 20.

The heat insulating material main body 30 may be made of a bendable heat insulating board 31 or a flexible polyurethane foam. Further, the heat insulating material main body 30 is not limited to the above-mentioned one, and may be a fiber-based material such as glass wool.

By using the heat insulating materials 1, 1A put in such a bag body, not only can it be easily fixed to the heat insulating object A by using the string-shaped body 40, but also it can be easily removed and workability is improved. Further, since it is housed in the bag-shaped bodies 20 and 20A, it can be easily installed and insulated even if it is reused after removal without any trouble.
By covering the heat insulating material main body 30 with the bag-shaped bodies 20 and 20A, problems such as ultraviolet deterioration, water resistance, and fire resistance of the heat insulating material main body 30 can be avoided. Further, by accommodating the plate-shaped heat insulating material main body 30, the bag-shaped bodies 20 and 20A become smooth without unevenness on the surface, and the outer shape of the heat insulating object A after heat insulating construction can be made flat.

In the above embodiment, the outdoor hot water tank has been described as an example of the heat insulating object A, but the present invention is not limited to this, and other thermal equipment such as heat exchangers, their piping, mechanical equipment, and the like are also targeted. Specific examples include a plate-type heat exchanger, a drum-type heat exchanger, a boiler, a multi-tube heat exchanger, and the like. Further, the heat insulating object A includes heat retention as well as the case where the purpose is heat insulation.

As described above, together with the embodiment, as specifically described, the bag-shaped body 10 for heat insulating material of the present invention includes a bag-shaped body 20 having an insertion port 23 in which the heat insulating material main body 30 is housed, and a bag-shaped body 20. A string-like body 40 fixed to the heat insulating object A and a through member 24 provided on the outside of the bag-shaped body 20 through which the string-shaped body 40 is passed and fixed to the heat insulating object A are provided.
According to such a configuration, the heat insulating material main body 30 is housed in the bag-shaped body 20, and the string-shaped body 40 is passed through the through member 24 of the bag-shaped body 20 and attached to the heat insulating object A to insulate the heat insulating material regardless of the shape of the heat insulating object A. The material body 30 can be easily attached and detached. Further, the heat insulating material main body 30 can be easily attached to the heat insulating object A, and the heat insulating material main body 30 can be removed together with the bag-shaped body 20 by removing the string-shaped body 40. This facilitates heat insulation construction and also facilitates reuse and installation.
Further, by covering the heat insulating material main body 30 with the bag-shaped body 20, the heat insulating material main body 30 can be protected, and problems such as ultraviolet deterioration, water resistance, and fire resistance can be avoided.

In the heat insulating bag body 10 of the present invention, the through member 24 is composed of a plurality of different widths corresponding to the width of the string-shaped body 40.
According to such a configuration, the heat insulating material main body 30 can be fixed by passing the string-shaped bodies 40 having different widths through the member 24, and the width of the string-shaped body 40 can be changed according to the size of the heat insulating object A and the like. Can be done.

The bag body 10 for a heat insulating material of the present invention is configured by arranging through members 24 at a plurality of locations.
According to such a configuration, by passing the string-like body 40 through the through members 24 arranged at a plurality of locations, the heat insulating material main body 30 can be easily attached even if the shape of the heat insulating object A is different.

In the heat insulating bag 10 of the present invention, the bag 20 is made of polyvinyl chloride (PVC) tarpaulin.
According to such a configuration, the bag-shaped body 20 can be imparted with water resistance and weather resistance, and the housed heat insulating material main body 30 can be protected.

The heat insulating material 1 put in the bag body of the present invention includes a heat insulating material bag body 10 and a heat insulating material main body 30 housed in the heat insulating material bag body 10.
According to such a configuration, the heat insulating material main body 30 is housed in the bag-shaped body 20, and the string-shaped body 40 is passed through the through member 24 of the bag-shaped body 20 and attached to the heat insulating object A to insulate the heat insulating material regardless of the shape of the heat insulating object A. The material 1 can be easily attached and detached. Further, the heat insulating material 1 can be easily attached to the heat insulating object A, and the heat insulating material 1 can be removed together with the bag-shaped body 20 by removing the string-shaped body 40. This facilitates heat insulation construction and also facilitates reuse and installation.
Further, the heat insulating material 1 put in the bag body can protect the heat insulating material 1 put in the bag body by covering the heat insulating material main body 30 with the bag-shaped body 20, and has ultraviolet deterioration, water resistance, and fire resistance. You can avoid problems such as.

The heat insulating material 1 put in the bag body of the present invention is configured such that the heat insulating material main body 30 has a thickness necessary for heat insulating the heat insulating object A.
According to such a configuration, by using the heat insulating material main body 30 having a thickness required for the heat insulating performance, the heat insulating performance can be improved as compared with the fiber-based heat insulating material.

In the heat insulating material 1 put in the bag body of the present invention, the heat insulating material main body 30 is a flexible plate-shaped polyurethane foam or a bendable plate-shaped rigid polyurethane foam.
According to such a configuration, since the plate-shaped polyurethane foam has flexibility and the plate-shaped polyurethane foam is bendable, even if the heat insulating object A has a curved surface, it can be attached along the curved surface. .. Further, the plate-shaped polyurethane foam heat insulating material main body 30 makes it easy to accommodate the plate-shaped polyurethane foam in the bag-shaped body 20.

The heat insulating material 1 put in the bag body of the present invention has a thermal conductivity of 0.024 W / (m · K) or less of the heat insulating material main body 30.
According to such a configuration, it is possible to secure the heat insulating property required for the heat insulating material main body 30.

The present invention is not limited to the above embodiment.

1, 1A Insulation material in the bag 10,10A Insulation bag 20,20A Bag-shaped 21,21A Front members 22, 22A Back members 23, 23A Insertion ports 24, 24A Through member 25 Disc member 26 side Members 27, 27A Through hole 30 Insulation material Main body 31 Bendable insulation board 32 Core material 33 Face material 40 String-like body 41 Belt 42 Buckle A Insulation target a Body b Top plate c Bottom plate L Length B Width

Claims (8)

A bag-shaped body with an insertion slot in which the main body of the heat insulating material is housed, and
A string-shaped body that fixes the bag-shaped body to the heat insulating object, and
A through member provided on the outside of the bag-shaped body, through which the string-shaped body is passed and fixed to the heat insulating object, is provided.
A bag for heat insulating material. The threading member is configured with a plurality of different widths corresponding to the width of the string-like body.
The bag for a heat insulating material according to claim 1. The through member is configured to be arranged at a plurality of places.
The bag for heat insulating material according to claim 1 or 2. The bag-like body is made of polyvinyl chloride (PVC) tarpaulin.
The bag for a heat insulating material according to any one of claims 1 to 3, wherein the bag body is characterized by the above. The bag for heat insulating material according to any one of claims 1 to 4,
A heat insulating material main body housed in the heat insulating material bag body is provided.
Insulation material in a bag that is characterized by that. The heat insulating material main body is configured to have a thickness necessary for heat insulating the heat insulating object.
The heat insulating material contained in the bag according to claim 5. The heat insulating material main body is a flexible plate-shaped polyurethane foam or a bendable plate-shaped rigid polyurethane foam.
The heat insulating material contained in the bag according to claim 6. The heat insulating material main body has a thermal conductivity of 0.024 W / (m · K) or less.
The heat insulating material contained in the bag according to claim 6 or 7.

Images