WO2016070379A1 - Vacuum thermal insulation system - Google Patents
Vacuum thermal insulation system Download PDFInfo
- Publication number
- WO2016070379A1 WO2016070379A1 PCT/CN2014/090464 CN2014090464W WO2016070379A1 WO 2016070379 A1 WO2016070379 A1 WO 2016070379A1 CN 2014090464 W CN2014090464 W CN 2014090464W WO 2016070379 A1 WO2016070379 A1 WO 2016070379A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat
- vacuum
- thermal insulation
- insulation board
- layer
- Prior art date
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 71
- 230000005855 radiation Effects 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 3
- 239000011521 glass Substances 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 239000010425 asbestos Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 claims 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 125000006850 spacer group Chemical group 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000006059 cover glass Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a general shape other than plane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
Definitions
- the invention relates to an insulation system, in particular to a vacuum insulation system suitable for heating and cooling equipment and heating and cooling medium transportation.
- Existing heating and cooling equipment adopts steel plate frame, filled with insulation layer, generally adopts refractory brick and refractory fiber method, or polyurethane foaming material; for heating medium and cooling medium transmission pipeline, refractory fiber or plastic foam is used.
- the material coating method is used for heat preservation. These methods use the properties of the material with low thermal conductivity for thermal insulation. Although these materials reduce the heat exchange caused by heat conduction, they can play a good thermal insulation effect, but the heat conduction is only reduced and not completely eliminated. It is said that there are still many heat losses, resulting in a decrease in efficiency.
- the technical problem to be solved by the present invention is to provide a vacuum insulation system which can greatly reduce heat loss.
- a vacuum heat preservation system which is innovative in that it comprises an insulation board group covering the outside of the cold and heat sources, and the heat insulation board group comprises a plurality of heat insulation boards having a hollow inner cavity.
- the hollow inner cavity of each thermal insulation board is connected with the vacuuming tube of the vacuum system.
- the inner wall of the surface of the thermal insulation board is provided with a heat insulation layer.
- the heat insulation layer is a non-metal material heat insulation board.
- non-metallic material heat insulation board is an asbestos board, a glass fiber cloth or an aluminum silicate refractory fiber cloth.
- the heat insulation layer is a heat radiation reflection layer.
- the heat radiation reflective layer is composed of a coated surface of the coated lens and a cover glass layer, and the reflective surface of the coated lens faces the side of the cold and heat source having a higher temperature.
- the heat radiation reflective layer is composed of an aluminum foil sandwiched between two glass layers, and the reflective surface of the aluminum foil faces the side of the cold and heat source having a higher temperature.
- a plurality of supporting partitions are disposed in the hollow inner cavity of the thermal insulation board.
- the invention has the advantages that: in use, the vacuum hollow system is used to evacuate the hollow inner cavity of the thermal insulation board, the vacuum is used to reduce heat conduction and convection, and the heat preservation effect is improved; in addition, the heat insulation layer adopts a heat radiation reflection layer to reduce heat Heat transfer from radiation. Further improve the insulation effect.
- the hollow inner cavity of the thermal insulation board is provided with a supporting partition plate to prevent deformation of the thermal insulation board caused by vacuuming.
- Figure 1 is a schematic view showing the structure of a vacuum insulation system of the present invention.
- FIG. 2 is a schematic structural view of a first embodiment of a thermal insulation board according to the present invention.
- Figure 3 is a schematic view showing the structure of the second embodiment of the thermal insulation board of the present invention.
- the vacuum heat preservation system includes an insulation board group covering the outside of the cold and heat source, and the heat insulation board group is assembled by a plurality of heat insulation boards 1 having a hollow inner cavity, and the hollow inner cavity of each insulation board 1 is evacuated.
- the evacuation line 3 of the system 2 is in communication.
- a vacuum pressure gauge 4 is arranged on the vacuum pumping line 3 for displaying the vacuum pressure of each vacuum insulation board group branch, and a shut-off valve 5 is provided, which is convenient for accessing the vacuum insulation board group vacuum pumping branch of the vacuum pumping system 2 Truncated.
- the vacuum degree of each branch reaches the required level, the road can be cut off; it is also convenient to repair the branch that may have air leakage without affecting the normal use of other branches.
- the branches can be closed and the vacuum pump of the vacuum system 2 can be stopped.
- the shut-off valve 5 of the branch can be opened, the vacuum pump is started, and only the branch can be evacuated.
- the heat insulating board 1 is welded by a metal plate to form a plate-shaped box body having a hollow inner cavity, and the structure thereof comprises an upper plate, a lower plate 11 and a peripheral side plate 12, on the upper plate of the heat insulating plate 1 or
- the inner wall of the lower plate 11 is provided with a heat insulation layer 14, which may be a conventional non-metallic material heat insulation board, such as an asbestos board, a glass fiber cloth or an aluminum silicate refractory fiber cloth, or other common on the market. Composite insulation board.
- the structural strength of the thermal insulation board 1 is increased, and the thermal insulation panel 1 is prevented from being deformed by vacuuming.
- a plurality of support partitions 13 may be disposed in the hollow inner cavity of the thermal insulation panel 1. When the thermal insulation panel 1 is small in size, the support spacer may also be eliminated. 13.
- Fig. 3 shows an insulating board of another structure in which the heat insulating layer can employ a heat radiation reflecting layer.
- the heat radiation reflective layer is composed of the coated back surface of the coated lens 15 and the glass layer 16 so that the coating is sandwiched between the glass layer of the coated lens 15 and the glass layer 16, and the reflective surface of the coated lens 15 faces the cold and heat source.
- the heat radiation reflecting layer may also be composed of an aluminum foil sandwiched between the two glass layers, and the reflecting surface of the aluminum foil faces the side of the cold and heat source having a higher temperature.
- the thermal insulation board 1 of the above structure may have a rectangular shape as a whole, and is assembled into a box shape to cover the cold and heat source through a plurality of rectangular heat insulation boards; the circular arc shape and the circular plate body may be formed, and the circular arc shape plate body is formed into a hollow cylinder.
- the shape structure is directly formed into a hollow cylindrical shape, and the two ends are formed by a circular heat insulating plate to form a cylindrical box covering the cold and heat sources. It can also be other shapes.
- the connection form of the thermal insulation boards can be welded, bolted, and fixed structural parts.
Abstract
A vacuum thermal insulation system, comprising a thermal insulation board assembly covering the outside of cold and heat sources., the thermal insulation board assembly is assembled from several thermal insulation boards (1) having hollow inner cavities, and the hollow inner cavity of each thermal insulation board (1) is in communication with a vacuum pipe (3) of a vacuum system (2). An inner wall of a surface plate of the thermal insulation board (1) is provided with a heat insulation layer (14). When in use, the vacuum system (2) vacuums the hollow inner cavity of the thermal insulation board (1), thus reducing heat conduction and convection via vacuum to improve thermal insulation; furthermore, the heat insulation layer (14) adopts a thermal radiation reflecting layer to reduce heat transfer resulted from the thermal radiation, thus further improving thermal insulation effect. A support spacer (13) is disposed in the hollow inner cavity of the thermal insulation board (1) to prevent the thermal insulation board (1) from deformation due to vacuuming.
Description
技术领域Technical field
本发明涉及一种保温***，特别设计一种适用于加热、制冷设备以及加热与制冷介质输送的真空保温***。The invention relates to an insulation system, in particular to a vacuum insulation system suitable for heating and cooling equipment and heating and cooling medium transportation.
背景技术Background technique
现有加热及制冷设备都采用钢板框架，内填保温层，一般采用耐火砖加耐火纤维的方法，或采用聚氨酯发泡材料；对于加热介质及制冷介质的传输管道，则采用耐火纤维或塑料泡沫材料包覆的方法进行保温。这些方法都是利用材料的导热性能较低的特性进行保温，虽然这些材料降低了热传导引起的热能交换，可起到很好的保温作用，但热传导只是被降低，并没有完全消除，对于***来说，仍然存在不少的热损失，导致效率的降低。
Existing heating and cooling equipment adopts steel plate frame, filled with insulation layer, generally adopts refractory brick and refractory fiber method, or polyurethane foaming material; for heating medium and cooling medium transmission pipeline, refractory fiber or plastic foam is used. The material coating method is used for heat preservation. These methods use the properties of the material with low thermal conductivity for thermal insulation. Although these materials reduce the heat exchange caused by heat conduction, they can play a good thermal insulation effect, but the heat conduction is only reduced and not completely eliminated. It is said that there are still many heat losses, resulting in a decrease in efficiency.
发明内容Summary of the invention
本发明要解决的技术问题是提供一种可大幅降低热损的真空保温***。The technical problem to be solved by the present invention is to provide a vacuum insulation system which can greatly reduce heat loss.
为解决上述技术问题，本发明的技术方案为：一种真空保温***，其创新点在于：包括覆盖在冷、热源外的保温板组，所述保温板组由若干具有空心内腔的保温板组合而成，所述各保温板的空心内腔均与抽真空***的抽真空管连通。In order to solve the above technical problem, the technical solution of the present invention is: a vacuum heat preservation system, which is innovative in that it comprises an insulation board group covering the outside of the cold and heat sources, and the heat insulation board group comprises a plurality of heat insulation boards having a hollow inner cavity. The hollow inner cavity of each thermal insulation board is connected with the vacuuming tube of the vacuum system.
进一步的，所述保温板的表板内壁设置有隔热层。Further, the inner wall of the surface of the thermal insulation board is provided with a heat insulation layer.
进一步的，所述隔热层为非金属材料隔热板。Further, the heat insulation layer is a non-metal material heat insulation board.
进一步的，所述非金属材料隔热板为石棉板、玻璃纤维布或硅酸铝耐火纤维布。Further, the non-metallic material heat insulation board is an asbestos board, a glass fiber cloth or an aluminum silicate refractory fiber cloth.
进一步的，所述隔热层为热辐射反射层。Further, the heat insulation layer is a heat radiation reflection layer.
进一步的，所述热辐射反射层由镀膜镜片的镀膜表面再覆盖玻璃层组成，且所述镀膜镜片反射面面向冷、热源中温度较高的一侧。Further, the heat radiation reflective layer is composed of a coated surface of the coated lens and a cover glass layer, and the reflective surface of the coated lens faces the side of the cold and heat source having a higher temperature.
进一步的，所述热辐射反射层由两玻璃层之间夹铝箔组成，且所述铝箔的反射面面向冷、热源中温度较高的一侧。Further, the heat radiation reflective layer is composed of an aluminum foil sandwiched between two glass layers, and the reflective surface of the aluminum foil faces the side of the cold and heat source having a higher temperature.
进一步的，所述保温板的空心内腔中设置若干支承隔板。Further, a plurality of supporting partitions are disposed in the hollow inner cavity of the thermal insulation board.
本发明的优点在于：使用时，利用抽真空***对保温板的空心内腔进行抽真空，通过真空来减少热传导和对流，提高保温效果；另外，隔热层采用热辐射反射层，可减少热辐射带来的热量传递。进一步提高保温效果。保温板的空心内腔设置支承隔板，可防止抽真空造成保温板变形。The invention has the advantages that: in use, the vacuum hollow system is used to evacuate the hollow inner cavity of the thermal insulation board, the vacuum is used to reduce heat conduction and convection, and the heat preservation effect is improved; in addition, the heat insulation layer adopts a heat radiation reflection layer to reduce heat Heat transfer from radiation. Further improve the insulation effect. The hollow inner cavity of the thermal insulation board is provided with a supporting partition plate to prevent deformation of the thermal insulation board caused by vacuuming.
附图说明DRAWINGS
图1为本发明真空保温***结构示意图。Figure 1 is a schematic view showing the structure of a vacuum insulation system of the present invention.
图2为本发明中保温板第一实施例结构示意图。2 is a schematic structural view of a first embodiment of a thermal insulation board according to the present invention.
图3为本发明中保温板第二实施例结构示意图。Figure 3 is a schematic view showing the structure of the second embodiment of the thermal insulation board of the present invention.
具体实施方式detailed description
如图1所示，真空保温***包括覆盖在冷、热源外的保温板组，保温板组由若干具有空心内腔的保温板1组装而成，各保温板1的空心内腔均与抽真空***2的抽真空管路3连通。As shown in FIG. 1 , the vacuum heat preservation system includes an insulation board group covering the outside of the cold and heat source, and the heat insulation board group is assembled by a plurality of heat insulation boards 1 having a hollow inner cavity, and the hollow inner cavity of each insulation board 1 is evacuated. The evacuation line 3 of the system 2 is in communication.
抽真空管路3上设置真空压力表4，用于显示各真空保温板组支路的真空压力，同时设有截止阀5，方便接入抽真空***2的各真空保温板组抽真空支路进行截断。当每一支路的真空度达到要求时，可将此路截断；也便于对可能出现漏气的支路进行修理，而不影响其他支路的正常使用。正常情况下，真空度达到要求后，可将各支路关闭，抽真空***2的真空泵停止运行。当某个支路真空度低于要求时，则可打开该支路的截止阀5，启动真空泵，只对该支路抽气即可。A vacuum pressure gauge 4 is arranged on the vacuum pumping line 3 for displaying the vacuum pressure of each vacuum insulation board group branch, and a shut-off valve 5 is provided, which is convenient for accessing the vacuum insulation board group vacuum pumping branch of the vacuum pumping system 2 Truncated. When the vacuum degree of each branch reaches the required level, the road can be cut off; it is also convenient to repair the branch that may have air leakage without affecting the normal use of other branches. Under normal circumstances, after the vacuum level is reached, the branches can be closed and the vacuum pump of the vacuum system 2 can be stopped. When the vacuum degree of a branch is lower than the requirement, the shut-off valve 5 of the branch can be opened, the vacuum pump is started, and only the branch can be evacuated.
如图2所示，保温板1由金属板材焊接构成一个具有空心内腔的板状箱体，其结构包括上、下表板11以及四周的侧板12，在保温板1的上表板或下表板11内壁上设置隔热层14，该隔热层14可以为常规的非金属材料隔热板，例如石棉板、玻璃纤维布或硅酸铝耐火纤维布，也可以是其他市面上常见的复合隔热板材。同时，提高保温板1的结构强度，避免抽真空造成保温板1变形，可在保温板1的空心内腔中设置若干支承隔板13，当保温板1尺寸较小时，也可取消支承隔板13。As shown in FIG. 2, the heat insulating board 1 is welded by a metal plate to form a plate-shaped box body having a hollow inner cavity, and the structure thereof comprises an upper plate, a lower plate 11 and a peripheral side plate 12, on the upper plate of the heat insulating plate 1 or The inner wall of the lower plate 11 is provided with a heat insulation layer 14, which may be a conventional non-metallic material heat insulation board, such as an asbestos board, a glass fiber cloth or an aluminum silicate refractory fiber cloth, or other common on the market. Composite insulation board. At the same time, the structural strength of the thermal insulation board 1 is increased, and the thermal insulation panel 1 is prevented from being deformed by vacuuming. A plurality of support partitions 13 may be disposed in the hollow inner cavity of the thermal insulation panel 1. When the thermal insulation panel 1 is small in size, the support spacer may also be eliminated. 13.
图3示出了另一种结构的保温板，其隔热层可采用热辐射反射层。具体结构：热辐射反射层由镀膜镜片15的镀膜背面再覆盖玻璃层16组成，使得镀膜夹在镀膜镜片15的玻璃层和玻璃层16之间，且镀膜镜片15的反射面面向冷、热源中温度较高的一侧。热辐射反射层也可由两玻璃层之间夹铝箔组成，且铝箔的反射面面向冷、热源中温度较高的一侧。Fig. 3 shows an insulating board of another structure in which the heat insulating layer can employ a heat radiation reflecting layer. The specific structure: the heat radiation reflective layer is composed of the coated back surface of the coated lens 15 and the glass layer 16 so that the coating is sandwiched between the glass layer of the coated lens 15 and the glass layer 16, and the reflective surface of the coated lens 15 faces the cold and heat source. The higher temperature side. The heat radiation reflecting layer may also be composed of an aluminum foil sandwiched between the two glass layers, and the reflecting surface of the aluminum foil faces the side of the cold and heat source having a higher temperature.
上述结构的保温板1可以整体为矩形，通过若干矩形保温板组装成箱型覆盖在冷、热源外；可以制成圆弧形、圆形板体，由若干圆弧形板体组成成空心圆柱形结构，或者直接制成整体空心圆柱形，两端通过圆形保温板构成一个圆柱形箱体覆盖在冷、热源外。亦可以是其他形状。保温板相互之间的连接形式可采用焊接、螺栓连接、外加固定结构件等多种方式。The thermal insulation board 1 of the above structure may have a rectangular shape as a whole, and is assembled into a box shape to cover the cold and heat source through a plurality of rectangular heat insulation boards; the circular arc shape and the circular plate body may be formed, and the circular arc shape plate body is formed into a hollow cylinder. The shape structure is directly formed into a hollow cylindrical shape, and the two ends are formed by a circular heat insulating plate to form a cylindrical box covering the cold and heat sources. It can also be other shapes. The connection form of the thermal insulation boards can be welded, bolted, and fixed structural parts.
Claims (8)
- 一种真空保温***，其特征在于：包括覆盖在冷、热源外的保温板组，所述保温板组由若干具有空心内腔的保温板组合而成，所述各保温板的空心内腔均与抽真空***的抽真空管连通。The utility model relates to a vacuum heat preservation system, which comprises: a heat insulation board group covering the outside of a cold and a heat source, wherein the heat insulation board group is composed of a plurality of heat insulation boards having hollow inner cavities, and the hollow inner cavities of the heat insulation boards are all It is in communication with the evacuation tube of the vacuum system.
- 根据权利要求1所述的真空保温***，其特征在于：所述保温板的表板内壁设置有隔热层。The vacuum insulation system according to claim 1, wherein the inner wall of the surface of the heat insulation board is provided with a heat insulation layer.
- 根据权利要求2所述的真空保温***，其特征在于：所述隔热层为非金属材料隔热板。The vacuum insulation system according to claim 2, wherein the heat insulation layer is a non-metallic material heat insulation board.
- 根据权利要求3所述的真空保温***，其特征在于：所述非金属材料隔热板为石棉板、玻璃纤维布或硅酸铝耐火纤维布。The vacuum insulation system according to claim 3, wherein the non-metallic material heat insulation board is an asbestos board, a glass fiber cloth or an aluminosilicate refractory fiber cloth.
- 根据权利要求2所述的真空保温***，其特征在于：所述隔热层为热辐射反射层。The vacuum insulation system according to claim 2, wherein the heat insulation layer is a heat radiation reflection layer.
- 根据权利要求5所述的真空保温***，其特征在于：所述热辐射反射层由镀膜镜片的镀膜表面再覆盖玻璃层组成，且所述镀膜镜片反射面面向冷、热源中温度较高的一侧。The vacuum heat preservation system according to claim 5, wherein the heat radiation reflecting layer is composed of a coating surface of the coated lens and a glass layer, and the reflecting surface of the coated lens faces a cold and heat source having a higher temperature. side.
- 根据权利要求5所述的真空保温***，其特征在于：所述热辐射反射层由两玻璃层之间夹铝箔组成，且所述铝箔的反射面面向冷、热源中温度较高的一侧。The vacuum heat preservation system according to claim 5, wherein the heat radiation reflecting layer is composed of an aluminum foil sandwiched between two glass layers, and a reflecting surface of the aluminum foil faces a side of a cold and heat source having a higher temperature.
- 根据权利要求1所述的真空保温***，其特征在于：所述保温板的空心内腔中设置若干支承隔板。The vacuum insulation system according to claim 1, wherein a plurality of supporting partitions are disposed in the hollow inner cavity of the heat insulating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/090464 WO2016070379A1 (en) | 2014-11-06 | 2014-11-06 | Vacuum thermal insulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/090464 WO2016070379A1 (en) | 2014-11-06 | 2014-11-06 | Vacuum thermal insulation system |
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| Publication Number | Publication Date |
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| WO2016070379A1 true WO2016070379A1 (en) | 2016-05-12 |
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| PCT/CN2014/090464 WO2016070379A1 (en) | 2014-11-06 | 2014-11-06 | Vacuum thermal insulation system |
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