CN105570620A - High-temperature-resistant cold-insulation double-faced composite vacuum heat-insulating board - Google Patents
High-temperature-resistant cold-insulation double-faced composite vacuum heat-insulating board Download PDFInfo
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- CN105570620A CN105570620A CN201610071011.8A CN201610071011A CN105570620A CN 105570620 A CN105570620 A CN 105570620A CN 201610071011 A CN201610071011 A CN 201610071011A CN 105570620 A CN105570620 A CN 105570620A
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- temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
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- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a high-temperature-resistant cold-insulation double-faced composite vacuum heat-insulating board. The heat conductivity coefficient is 0.002-0.003 W/m.K. The high-temperature-resistant cold-insulation double-faced composite vacuum heat-insulating board is characterized in that the board is formed by compositing two layers of core materials with a two-layer film material; the upper surface of the upper layer of the two-layer film material is made of a stainless steel film material and faces the high-temperature environment; the lower surface of the lower layer of the two-layer film material is made of an aluminum-plastic composite film material and faces the low-temperature environment; the connector of the heat-insulating board is formed by compositing the stainless steel film material with the aluminum-plastic composite film material through dry hot pressing under the vacuum environment; the sealed position is coated with high-temperature-resistant binding agents, so that the connector is closely attached, and the effect of reducing the heat conductivity coefficient is achieved. The high-temperature-resistant cold-insulation double-faced composite vacuum heat-insulating board has the beneficial effects that the vacuum heat-insulating board is of an integrated structure; meanwhile, the environment where the temperature difference between a high temperature and a low temperature is large can be borne, and the high-temperature environment of 600 DEG C is lowered to be minus 100 DEG C; in the processes of installation, disassembly and use, layering, degumming, oxidization and other damage are avoided; the multi-functional effects through one board are achieved, dust is prevented from being generated, and the effect of purifying the using environment is achieved.
Description
Technical field
The present invention relates to a kind of two-sided composite vacuum insulation plate, particularly relate to the two-sided composite vacuum insulation plate of a kind of high temperature resistant cold insulation.
Technical background
In recent years, energy-conserving and environment-protective become the problem that people are concerned about most, its extensive use at building field of traditional organic insulation material inflammable corrosion-prone drawbacks limit, and the shortcoming such as inorganic heat insulation material exists poor thermal insulation property, and density is large, there is significant limitation.Therefore people more and more pay attention to making and the use of heat-insulating heat-preserving material, and particularly the research of the thermal insulation property of, environment-friendlyclip clip layer material emerging to some, sound insulation value is more and more deep.
Vacuum heat-insulating plate is the one of heat insulating material; it is based on vacuum insulation principle; by improving degree of vacuum in plate to greatest extent and filling porous low thermal conductivity material and realize thermal insulation; from its structure; be composited by the good filling core of heat-shielding performance and barrier film; compound tense; first using barrier film as the coated porous filling core in protection top layer; make protection top layer by decompression vacuum pumping and fill core again to fit tightly, finally heat-sealing sealing is carried out to protection surface layer film.At compound tense, the heat trnasfer that decompression vacuum pumping process makes vacuum heat-insulating plate effectively to avoid cross-ventilation to cause, its thermal conductivity significantly reduces, so on the basis of identical thermal requirements, vacuum heat-insulating plate can effectively reduce the thickness of thermal shield than common thermal shield, vacuum heat-insulating plate is made to have volume little, lightweight advantage, at present, to have mass area ratio light because of it for vacuum heat-insulating plate, easy construction, nontoxic, pollution-free, environmental protection, long service life, the advantage such as nonflammable and be widely used in aviation aircraft, aircraft carrier, naval vessel, submarine, wind-tunnel, freezer, shipping container, refrigerator, high ferro, automobile, multiple energy-saving field such as building.
But existing vacuum heat-insulating plate has high requirement to Environmental Conditions, the serviceability temperature of different film material is different, the vacuum heat-insulating plate of stainless steel membrane material can realize application in high temperature environments, and aluminum plastic film vacuum heat-insulating plate using effect is at low temperatures better, and when the temperature difference on vacuum heat-insulating plate two sides is larger, traditional vacuum heat-insulating plate just can not employ in these areas.
Application number be 201410558510.0 Chinese invention patent disclose a kind of vacuum heat-insulating plate of low-thermal-bridge, there is upper and lower sealing edge structure, two kinds of high barrier film material encapsulation are adopted to form, the film material that wherein area is larger is main encapsulating film material, wrap the surrounding of core, and the less film material of area is time encapsulating film material, the upper or lower package surface of local complexity vacuum heat-insulating plate.Main encapsulating film material contains multilayer aluminum rete, the thickness of individual layer aluminum membranous layer is 20-100nm, outermost surface is amorphous nylon (PA) or the carbon fiber mesh fabric of 10-15 μm, innermost layer is the polyethylene film (PE) of 50 μm, tundish contains polyester (PET) and the aluminium film of layer 2-4, and the thickness of single polyester (PET) layer is 15-20 μm.The outermost surface of secondary encapsulating film material is nanometer PET film, and having nano flame retardant particle is that nano-scale is dispersed in PET matrix, and layer thickness is 30-50 μm; Innermost layer is the polyethylene film (PE) of 50 μm, and tundish contains 1-3 layer polypropylene (PP) and polyester (PET), and thickness in monolayer is 12-24 μm.The advantage of this invention is that vacuum heat-insulating plate surface heat bridge effect is low, and insulation insulation effect is good.Its shortcoming is that the high barrier film material of this vacuum heat-insulating plate has extraordinary thermal insulation property at low ambient temperatures, but this material does not have resistant to elevated temperatures performance, polyethylene film decomposes under hot environment, and overall thermal insulation property is significantly declined.
Application number be 201220429416.1 Chinese utility model patent disclose a kind of high-strength vacuum insulation plate, this vacuum heat-insulating plate comprises: upper strata baffler, core, lower floor's baffler, air exchanging hole, the micro-permeable membrane of gas, sealing cover; The window of gas exchanges when described air exchanging hole is vacuum heat-insulating plate acquisition vacuum, air exchanging hole is circular; Between described upper strata baffler and lower floor's baffler, linked together by welding manner between sealing cover and lower baffler.The utility model has the advantages that described vacuum heat-insulating plate has high temperature resistant, high strength, gas permeation rate and the low feature of water transmittance, there is alkali resistance, serviceability, feature that weather resisteant is good simultaneously.Its shortcoming is that upper lower clapboard all adopts stainless steel, and heat bridge effect is serious, although can use in high temperature environments for a long time, using effect is not good at low ambient temperatures, affects its further application and popularization.
Although above-mentioned several patent of invention all discloses a kind of vacuum heat-insulating plate, but its film material all adopts single material, certain narrow limitation is caused to the use field of vacuum heat-insulating plate, the present invention is intended to the two-sided composite vacuum insulation plate of a kind of high temperature resistant cold insulation of research, the Environmental Conditions that different film materials is corresponding different, expands the application of vacuum heat-insulating plate.
Summary of the invention
Object of the present invention is intended to overcome the deficiencies in the prior art, and the two-sided composite vacuum insulation plate of high temperature resistant cold insulation providing a kind of using scope wider, can be used in the field that the high/low temperature temperature difference is larger.
The technological scheme adopted for realizing object of the present invention is: the two-sided composite vacuum insulation plate of a kind of high temperature resistant cold insulation, it is characterized in that described composite vacuum insulation plate is composited by two-layer core and upper and lower two membranes material, upper strata upper surface is stainless steel membrane material, the thickness of stainless steel membrane material is 0.02 millimeter-0.1 millimeter, towards hot environment, the temperature of bearing is not higher than 600 DEG C, upper strata high temperature core is by chopped strand, ceramic wool multiple-layer stacked forms, every layer thickness is 50 microns-200 microns, aperture size is 5 microns-50 microns, at interval of the stainless steel film of 1 millimeter of folder one deck 1 micron-4 microns, for reflecting the heat transmission of core inside, reach the effect of insulation.
Lower surface is aluminum-plastic composite membrane material, the thickness of aluminum-plastic composite membrane material is 0.01 millimeter-0.03 millimeter, towards low temperature environment, the temperature of bearing is not less than-100 DEG C, underlying low temperature core is standby through powder molding legal system by ultra-fine fibre glass cotton, aerosil, aerogel, and inner void is of a size of 10 nanometer-30 nanometers.
Jointing is compounded to form by dry method hot pressing under vacuum conditions by stainless steel membrane material and aluminum-plastic composite membrane material, sealing part coating high temperature resistant binder, fitting tightly of jointing can be realized, in use ensure that gas can not be flowed arbitrarily by the space of seam crossing between two plates, reach and reduce the effect that thermal conductivity improves thermal insulation property.
The planar dimension of the vacuum heat-insulating plate described in this invention is 100mm ~ 500mmX100mm ~ 1000mm; Total thickness is 5mm ~ 50mm, and thermal conductivity is 0.002 ~ 0.003W/mK.
The beneficial effect that the present invention has is: 1. can bear the larger environment of the high/low temperature temperature difference simultaneously, upper surface stainless steel film can bear the high temperature of more than 600 DEG C, lower surface aluminium plastic membrane can use at the low temperature of subzero less than 100 DEG C, has greatly expanded the use field of double-face vacuum thermal shield; 2. vacuum heat-insulating plate has extremely low thermal conductivity, under normal temperature, thermal conductivity is 0.002 ~ 0.003W/mK, 600 DEG C of hot environments can be reduced to subzero 100 DEG C, active time is long in different environments for the material of film up and down of simultaneously vacuum heat-insulating plate, and weatherability is stronger; 3. this vacuum heat-insulating plate is integrated, and in installation, dismounting, in using process, layering does not occur, comes unstuck, the damage such as oxidation, both had a plate Multifunctional effect, and also do not produced dust, and had the effect of purification Environmental Conditions.
Accompanying drawing explanation
Fig. 1 is the two-sided composite vacuum insulation plate sectional view of a kind of high temperature resistant cold insulation.
In diagram, 10 is stainless steel-aluminum-plastic composite membrane material, and 20 is stainless steel membrane material, and 30 is high temperature core, and 40 is low temperature core, and 50 is aluminum-plastic composite membrane material.
Embodiment
Below in conjunction with specific embodiment, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims and limited.
Embodiment 1
The two-sided composite vacuum insulation plate of a kind of high temperature resistant cold insulation, it is characterized in that described composite vacuum insulation plate is composited by two-layer core and upper and lower two membranes material, upper strata upper surface is stainless steel membrane material, the thickness of stainless steel membrane material is 0.02 millimeter, and towards hot environment, the temperature of bearing is not higher than 600 DEG C, upper strata high temperature core is formed by chopped strand, ceramic wool multiple-layer stacked, every layer thickness is 50 microns, and aperture size is 5 microns, at interval of the stainless steel film of 1 millimeter of folder one deck 1 micron.
Lower surface is aluminum-plastic composite membrane material, the thickness of aluminum-plastic composite membrane material is 0.01 millimeter, and towards low temperature environment, the temperature of bearing is not less than-100 DEG C, underlying low temperature core is standby through powder molding legal system by ultra-fine fibre glass cotton, aerosil, aerogel, and inner void is of a size of 30 nanometers.
The planar dimension of the vacuum heat-insulating plate described in this invention is 100mmX100mm, and total thickness is 10mm, and thermal conductivity is 0.003W/mK, for the fuel tank cold and heat insulation of aerospace craft, serve good effect, not only cold and heat insulation, and compared with traditional material, improve fuel space 25%.
Embodiment 2
The two-sided composite vacuum insulation plate of a kind of high temperature resistant cold insulation, it is characterized in that described composite vacuum insulation plate is composited by two-layer core and upper and lower two membranes material, upper strata upper surface is stainless steel membrane material, the thickness of stainless steel membrane material is 0.1 millimeter, and towards hot environment, the temperature of bearing is not higher than 600 DEG C, upper strata high temperature core is formed by chopped strand, ceramic wool multiple-layer stacked, every layer thickness is 200 microns, and aperture size is 50 microns, at interval of the stainless steel film of 1 millimeter of folder one deck 4 microns.
Lower surface is aluminum-plastic composite membrane material, the thickness of aluminum-plastic composite membrane material is 0.03 millimeter, and towards low temperature environment, the temperature of bearing is not less than-100 DEG C, underlying low temperature core is standby through powder molding legal system by ultra-fine fibre glass cotton, aerosil, aerogel, and inner void is of a size of 10 nanometers.
The planar dimension of the vacuum heat-insulating plate described in this invention is 300mmX800mm, total thickness 50mm, and thermal conductivity is 0.002W/mK, for the fuel tank cold and heat insulation of aerospace craft, serve good effect, not only cold and heat insulation, and compared with traditional material, improve fuel space 30%.
Above are only two embodiments of the present invention, but design concept of the present invention is not limited thereto, all changes utilizing this design the present invention to be carried out to unsubstantiality, all should belong to the behavior of invading the scope of protection of the invention.In every case be the content not departing from technical solution of the present invention, any type of simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (1)
1. the two-sided composite vacuum insulation plate of high temperature resistant cold insulation, thermal conductivity is 0.002 ~ 0.003W/mK, it is characterized in that described vacuum heat-insulating plate is composited by two-layer core and upper and lower two membranes material, upper strata upper surface is the stainless steel membrane material of 0.02 millimeter of-0.1 millimeters thick, towards hot environment, the temperature of bearing is not higher than 600 DEG C; Lower surface is the aluminum-plastic composite membrane material of 0.01 millimeter of-0.03 millimeters thick, and towards low temperature environment, the temperature of bearing is not less than-100 DEG C; The upper strata high temperature core of two-layer core is formed by chopped strand, ceramic wool multiple-layer stacked, every layer thickness is 50 microns-200 microns, aperture size is 5 microns-50 microns, and interior pressure is 0.1 handkerchief-100 handkerchief, at interval of the stainless steel film of 1 millimeter of folder one deck 1 micron-4 microns; Underlying low temperature core is standby through powder molding legal system by ultra-fine fibre glass cotton, aerosil, aerogel, and inner void is of a size of 10 nanometer-30 nanometers, and interior pressure is 10 handkerchief-1000 handkerchiefs; Stainless steel membrane material and aluminum-plastic composite membrane material carry out the stainless steel-aluminum-plastic composite membrane material be compounded to form under vacuum conditions by dry method hot pressing, sealing part coating high temperature resistant binder, in order to ensure the degree of vacuum of vacuum insulation intralamellar part, reaches and reduces the effect that thermal conductivity improves thermal insulation property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071011.8A CN105570620B (en) | 2016-01-19 | 2016-01-19 | A kind of two-sided composite vacuum insulation plate of high temperature resistant cold insulation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610071011.8A CN105570620B (en) | 2016-01-19 | 2016-01-19 | A kind of two-sided composite vacuum insulation plate of high temperature resistant cold insulation |
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| CN105570620A true CN105570620A (en) | 2016-05-11 |
| CN105570620B CN105570620B (en) | 2017-11-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108314412A (en) * | 2018-02-23 | 2018-07-24 | 山东鲁阳节能材料股份有限公司 | A kind of insulating product and preparation method thereof |
| CN109185601A (en) * | 2018-11-30 | 2019-01-11 | 南京工业大学 | A kind of high temperature resistant hard bilayers vacuum heat-insulating plate |
| CN110744889A (en) * | 2019-09-23 | 2020-02-04 | 苏州市君悦新材料科技股份有限公司 | Nano flame-retardant sound-insulation heat-insulation material for aerospace |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108314412A (en) * | 2018-02-23 | 2018-07-24 | 山东鲁阳节能材料股份有限公司 | A kind of insulating product and preparation method thereof |
| CN109185601A (en) * | 2018-11-30 | 2019-01-11 | 南京工业大学 | A kind of high temperature resistant hard bilayers vacuum heat-insulating plate |
| CN110744889A (en) * | 2019-09-23 | 2020-02-04 | 苏州市君悦新材料科技股份有限公司 | Nano flame-retardant sound-insulation heat-insulation material for aerospace |
| CN110744889B (en) * | 2019-09-23 | 2021-10-01 | 苏州市君悦新材料科技股份有限公司 | Nano flame-retardant sound-insulation heat-insulation material for aerospace |
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