CN103216706A - High-strength vacuum heat-insulating plate and preparation method thereof - Google Patents
High-strength vacuum heat-insulating plate and preparation method thereof Download PDFInfo
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- CN103216706A CN103216706A CN2012103089910A CN201210308991A CN103216706A CN 103216706 A CN103216706 A CN 103216706A CN 2012103089910 A CN2012103089910 A CN 2012103089910A CN 201210308991 A CN201210308991 A CN 201210308991A CN 103216706 A CN103216706 A CN 103216706A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The invention discloses a high-strength vacuum heat-insulating plate, which comprises an upper layer barrier plate, a core material, a lower layer barrier plate, a gas exchange hole, a gas micro-permeable membrane and a sealing cover, wherein the gas exchange hole is a window for performing gas exchange when the vacuum heat-insulating plate obtains vacuum and is cylindrical, and the size of the gas exchange hole is determined according to the size of the vacuum heat-insulating plate; and the sealing cover is connected with the barrier plate in a welding mode between the upper layer barrier plate and the lower layer barrier plate. The invention also provides a manufacturing method of the vacuum heat-insulating plate. The vacuum heat-insulating plate has the characteristics of high temperature resistance, high strength, low gas transmission rate and low water penetration rate, and meanwhile has the characteristics of alkali resistance, durability and good weather resistance.
Description
Technical field
The present invention relates to a kind of vacuum heat-insulating plate and preparation method thereof, particularly relate to a kind of high-strength vacuum insulation plate and preparation method thereof.
Background technique
The barrier material of vacuum heat-insulating plate generally adopts composite membrane at present, mainly comprises hot sealing layer and gas barrier layer, and selecting PE usually for use is the internal layer heat-sealable material, and the aluminium foil composite polyester material is a gas barrier layer.
The patent No. is to disclose a kind of vacuum heat-insulating plate of being convenient to use on the utility model patent of CN201680117U.The described air blocking thin film of this patent is metal, glass, PA, PI, PE, PP.
The patent No. is to disclose a kind of vacuum heat-insulating plate on the utility model patent of ZL200420053407.2.The described air blocking thin film of this patent is respectively PA layer, pet layer, aluminium foil layer and PE layer from inside to outside from core.
The patent No. is to disclose a kind of vacuum insulation insulating board for building on the utility model patent of CN202248332U.The described air blocking thin film of this patent comprises stratiform structure and thermal synthesis layer, and stratiform structure is PA film or PET film or PVDC film or EVOH film, and thermal synthesis layer is PE film, CPP film or BOPP film.
Present vacuum heat-insulating plate, mainly adopt aluminum-plastic composite membrane be metal layer composite high-molecular layer as barrier material, adopt heat fusing internal layer heat-sealable material to encapsulate.Aluminum-plastic composite membrane is generally very thin, and the anti-ability that punctures is extremely limited, and aluminium belongs to amphoteric metal, promptly is soluble in highly basic, also can be dissolved in diluted acid, give when having limited the vacuum heat-insulating plate performance use, construction also brings many constant.The fusing point of internal layer heat-sealable material generally is lower than 140 ℃, and this has also limited the application of vacuum heat-insulating plate in the high temperature field.
Summary of the invention
Goal of the invention: vacuum heat-insulating plate punctured resistance in the prior art is low in order to solve, the problem of poor corrosion resistance, the invention provides that a kind of puncture resistance is strong, decay resistance is high, thermal conductivity is low, and can resistant to elevated temperatures vacuum heat-insulating plate.
Another technical problem that the present invention will solve has provided a kind of preparation method of above-mentioned vacuum heat-insulating plate.
Technological scheme: to achieve these goals, a kind of high-strength vacuum insulation plate of the present invention is characterized in that this vacuum heat-insulating plate comprises: upper strata baffler (1), core (2), lower floor's baffler (3), air exchanging hole (4), the little permeable membrane of gas (6), sealing cover (5); The window of gas exchange when described air exchanging hole (4) is vacuum heat-insulating plate acquisition vacuum, air exchanging hole (4) is circular, size is decided according to the vacuum insulation board size; Between described upper strata baffler (1) and the lower floor's baffler (3), link together by welding manner between sealing cover (5) and the following baffler (3).
Described the upper and lower baffler is characterized in that described upper and lower layer baffler material is an alloy material, can select stainless steel for use, or carbon steel, or titanium alloy, and thickness is 0.2～3mm.
Described core is characterized in that comprising porous thermal insulating material and getter.The optional gas-phase silica of described porous thermal insulating material, silicate board (foam cement plate) or glass fibre, or silicon dioxide powder, or rock wool, or alumina silicate porous material, or several persons' composite material wherein; Described getter can be porous sintered type getter, or non-metallic getters, and as active carbon, getter is dispersed in the porous thermal insulating material, or concentrated porous thermal insulating material certain that places.
Described vacuum heat-insulating plate, the little permeable membrane of gas (6) that it is characterized in that this vacuum heat-insulating plate is for circular, its diameter is greater than air exchanging hole (4) 1～100mm, and the thickness of the little permeable membrane of gas (6) is the material that its material of 0.2～15mm can be selected low gas permeability for use, as aluminum-plastic composite membrane, or teflon, or polyethylene, or rubber, or PETG, or PVC, preferred aluminum-plastic composite membrane.
Described vacuum heat-insulating plate, it is characterized in that the air exchanging hole (4) of this vacuum heat-insulating plate can be positioned at any position of baffler, the geometrical center position of preferred baffler, vacuumize in the vacuum heat-insulating plate process, after reaching required degree of vacuum, with sealing cover (5) it is covered, and by welding its sealing.
Described vacuum heat-insulating plate is characterized in that the welding manner of this vacuum heat-insulating plate can be resistance welding, electron beam welding, arc welding, laser beam welding, preferred resistance welding.
The invention also discloses a kind of method for preparing above-mentioned vacuum heat-insulating plate, it is characterized in that comprising the steps:
(1) cuts the core of required size;
(2) cut two blocks of baffler sheet materials by size, the big baffler of size for needing bending, one for need not to bend the less baffler of size;
(3) random position of a baffler processes the air exchanging hole of a circle therein, and preferred plate central position processes a sealing cover simultaneously, and the size of sealing cover and air exchanging hole are identical, can cover air exchanging hole;
(4) choose the little permeable membrane of circular gas of a suitable size;
The inside plate of the one side conduct that (5) baffler in the step 2 is relative with core is bonded at the little permeable membrane of the gas that processes on the plate of the inside with inorganic glue, covers whole air exchanging hole, makes gas mainly exchange by the little permeable membrane of gas and the external world;
(6) larger-size baffler in the step 1 is stamped out four road folding lines according to the size of core, make two flangings all become 90 ° of angles with baffler by the folding line lower floor's baffler that bends to the inside;
(7) upper strata baffler horizontal positioned places the center of this baffler with the rectangle core that cuts, and puts into getter, and lower floor's baffler is covered on the core by folding line, and the four edges of two bafflers contacts is welded, and forms plate object;
(8) on air exchanging hole, connect copper pipe, adopt have tail vacuum pressure sealing technology to finish to bleed, soldering and sealing, process for cooling process, degree of vacuum is 10 in the plate
-1Pa～10
-4Pa;
(9) with sealing cover it is covered, rapidly sealing cover and baffler are welded together, prepare high-strength vacuum insulation plate.
Effect: the present invention compared with prior art has the following advantages:
(1) gas permeation rate and water transmittance are low, the working life of having improved vacuum heat-insulating plate.
(2) low thermal conductivity has improved the whole hot-resistant heat-preserving performance of vacuum heat-insulating plate greatly.
(3) compressive strength height, weather resisteant are good, and it is good to have dimensional stability, and anti-penetration ability is strong, resistance to cracking and the advantages such as good stability under hygrothermal environment.
(4) overcome the shortcoming of traditional vacuum thermal shield aluminum foil metal material composite high-molecular material temperature tolerance difference, vacuum heat-insulating plate can be born up to the high temperature more than 1000 ℃.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of embodiment 1 among the present invention.
Fig. 3 is the worm's eye view of embodiment 1 among the present invention.
Fig. 4 is that Fig. 2 is along A-A rip cutting figure.
Fig. 5 is the enlarged view of dotted portion among Fig. 4.
Fig. 6 is the structural representation of embodiment 2 among the present invention.
Fig. 7 is the front elevation of embodiment 2 among the present invention.
Fig. 8 is the worm's eye view of embodiment 2 among the present invention.
Fig. 9 is that Fig. 7 is along A-A rip cutting figure.
Figure 10 is the enlarged view of dotted portion among Fig. 9.
Embodiment:
Below in conjunction with several specific embodiments, further illustrate the present invention, should understand these embodiments only is used to the present invention is described and is not used in and limit the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims to the modification of the various equivalent form of values of the present invention and limit.
As Fig. 2-a kind of high-strength vacuum insulation plate shown in Figure 4, it comprises: upper strata baffler (1), core (2), lower floor's baffler (3), air exchanging hole (4), the little permeable membrane of gas (6), sealing cover (5); The window of gas exchange when described air exchanging hole (4) is vacuum heat-insulating plate acquisition vacuum, air exchanging hole (4) is cylindrical, and the center of circle is positioned at the geometrical center of lower floor's baffler (3), and size is decided according to the vacuum insulation board size; Between described upper strata baffler (1) and the lower floor's baffler (3), the mode by laser bonding between sealing cover (5) and the following baffler (3) links together; The material of described baffler is 304 stainless steels, and thickness is 0.7mm; Porous thermal insulating material material in the described core is a blanket of glass wool, and thickness is 40mm; Getter in the described core is an active carbon; The little permeable membrane of described gas (6) is circular, and its diameter is greater than air exchanging hole (4) 20mm, and the thickness of the little permeable membrane of gas (6) is 3mm, and its material is a polyethylene film.
The concrete process step of preparation is as follows:
(1) preparation core: cut the porous thermal insulating material of required size, getter is ready to;
(2) cut two blocks of baffler sheet materials by size, a size upper strata baffler for needing to bend, one is lower floor's baffler;
(3) process the air exchanging hole of a circle at the geometrical center position of lower floor's baffler, process a sealing cover simultaneously, the size of sealing cover and air exchanging hole coincide, and can cover air exchanging hole;
(4) choose the little permeable membrane of circular gas of a suitable size;
(5) choose in the step 2 the inside plate of one side conduct relative with inner core in the vacuum heat-insulating plate in lower floor's baffler, the little permeable membrane of the gas that processes is bonded on the plate of the inside with inorganic glue, cover whole air exchanging hole, make gas mainly exchange by the little permeable membrane of gas and the external world;
(6) lower floor's baffler is stamped out the twice folding line according to the size of core, make two flangings all become 90 ° of angles with baffler by the folding line lower floor's baffler that bends to the inside;
(7) upper strata baffler horizontal positioned places the center of this baffler with the rectangle core that cuts, and puts into getter, and lower floor's baffler is covered on the core by folding line, and the four edges of two bafflers contacts is welded, and forms plate object;
(8) on air exchanging hole, connect copper pipe, adopt have tail vacuum pressure sealing technology to finish to bleed, soldering and sealing, process for cooling process, degree of vacuum is 10 in the plate
-2Pa covers it with sealing cover immediately, rapidly sealing cover and baffler is welded together, and obtains vacuum heat-insulating plate.
As Fig. 6-a kind of high-strength vacuum insulation plate shown in Figure 8, it comprises: upper strata baffler (1), core (2), lower floor's baffler (3), air exchanging hole (4), the little permeable membrane of gas (6), sealing cover (5); The window of gas exchange when described air exchanging hole (4) is vacuum heat-insulating plate acquisition vacuum, air exchanging hole (4) is cylindrical, and the center of circle is positioned at the geometrical center of upper strata baffler (3), and size is decided according to the vacuum insulation board size; Between described upper strata baffler (1) and the lower floor's baffler (1), link together by the resistance welding mode between sealing cover (5) and the last baffler (1); The material of described baffler is 304 stainless steels, and thickness is 0.7mm; Porous thermal insulating material material in the described core is a blanket of glass wool, and thickness is 40mm; Getter in the described core is an active carbon; The little permeable membrane of described gas (6) is circular, and its diameter is greater than air exchanging hole (4) 20mm, and the thickness of the little permeable membrane of gas (6) is 3mm, and its material is an aluminum-plastic composite membrane.
The concrete process step of preparation is as follows:
(1) preparation core: cut the porous thermal insulating material of required size, getter is ready to;
(2) cut two blocks of baffler sheet materials by size, a size upper strata baffler for needing to bend, one is lower floor's baffler;
(3) process the air exchanging hole of a circle at the geometrical center position of upper strata baffler, process a sealing cover simultaneously, the size of sealing cover and air exchanging hole coincide, and can cover air exchanging hole;
(4) choose the little permeable membrane of circular gas of a suitable size;
(5) choose the step 2 the inside plate of relative with inner core in vacuum heat-insulating plate one side conduct in the baffler at the middle and upper levels, the little permeable membrane of the gas that processes is bonded on the plate of the inside with inorganic glue, cover whole air exchanging hole, make gas mainly exchange by the little permeable membrane of gas and the external world;
(6) lower floor's baffler is stamped out the twice folding line according to the size of core, make two flangings all become 90 ° of angles with baffler by the folding line lower floor's baffler that bends to the inside;
(7) upper strata baffler horizontal positioned places the center of this baffler with the rectangle core that cuts, and puts into getter, and lower floor's baffler is covered on the core by folding line, and the four edges of two bafflers contacts is welded, and forms plate object;
(8) on air exchanging hole, connect copper pipe, adopt have tail vacuum pressure sealing technology to finish to bleed, soldering and sealing, process for cooling process, degree of vacuum is 10 in the plate
-2Pa covers it with sealing cover immediately, rapidly sealing cover and baffler is welded together, and obtains vacuum heat-insulating plate.
Above-mentioned only is single embodiment of the present invention, but design concept of the present invention is not limited thereto, and allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading the scope of protection of the invention.In every case be the content that does not break away from technical solution of the present invention, to any type of simple modification, equivalent variations and remodeling that above embodiment did, still belong to the protection domain of technical solution of the present invention according to technical spirit of the present invention.
Claims (7)
1. a high-strength vacuum insulation plate is characterized in that this vacuum heat-insulating plate comprises: upper strata baffler (1), core (2), lower floor's baffler (3), air exchanging hole (4), the little permeable membrane of gas (6), sealing cover (5); The window of gas exchange when described air exchanging hole (4) is vacuum heat-insulating plate acquisition vacuum, air exchanging hole (4) is circular, size is decided according to the vacuum insulation board size; Between described upper strata baffler (1) and the lower floor's baffler (3), link together by welding manner between sealing cover (5) and the following baffler (3).
2. according to claims 1 described the upper and lower baffler, it is characterized in that described upper and lower layer baffler material is an alloy material, can select stainless steel for use, or carbon steel, or titanium alloy, thickness is 0.2～3mm.
3. according to claims 1 described core, it is characterized in that comprising porous thermal insulating material and getter.The optional gas-phase silica of described porous thermal insulating material, or glass fibre, or silicon dioxide powder, or blanket of glass wool, or rock wool, or alumina silicate porous material, or several persons' composite material wherein; Described getter can be porous sintered type getter, or non-metallic getters, and as active carbon, getter is dispersed in the porous thermal insulating material, or concentrated porous thermal insulating material certain that places.
4. according to claims 1 described vacuum heat-insulating plate, the little permeable membrane of gas (6) that it is characterized in that this vacuum heat-insulating plate is for circular, its diameter is greater than air exchanging hole (4) 1～100mm, and the thickness of the little permeable membrane of gas (6) is the material that its material of 0.2～15mm can be selected low gas permeability for use, as aluminum-plastic composite membrane, or teflon, or polyethylene, or rubber, or PETG, or PVC, preferred aluminum-plastic composite membrane.
5. according to claims 1 described vacuum heat-insulating plate, it is characterized in that the air exchanging hole (4) of this vacuum heat-insulating plate can be positioned at any position of baffler, the geometrical center position of preferred baffler, vacuumize in the vacuum heat-insulating plate process, after reaching required degree of vacuum, with sealing cover (5) it is covered, and by welding its sealing.
6. according to claims 1 described vacuum heat-insulating plate, it is characterized in that the welding manner of this vacuum heat-insulating plate can be resistance welding, electron beam welding, arc welding, laser beam welding, preferred resistance welding.
7. the invention also discloses a kind of method for preparing above-mentioned vacuum heat-insulating plate, it is characterized in that comprising the steps:
(1) cuts the core of required size;
(2) cut two blocks of baffler sheet materials by size, the big baffler of size for needing bending, one for need not to bend the less baffler of size;
(3) random position of a baffler processes the air exchanging hole of a circle therein, and preferred plate central position processes a sealing cover simultaneously, and the size of sealing cover and air exchanging hole are identical, can cover air exchanging hole;
(4) choose the little permeable membrane of circular gas of a suitable size;
The inside plate of the one side conduct that (5) baffler in the step 2 is relative with core is bonded at the little permeable membrane of the gas that processes on the plate of the inside with inorganic glue, covers whole air exchanging hole, makes gas mainly exchange by the little permeable membrane of gas and the external world;
(6) larger-size baffler in the step 1 is stamped out four road folding lines according to the size of core, make two flangings all become 90 ° of angles with baffler by the folding line lower floor's baffler that bends to the inside;
(7) upper strata baffler horizontal positioned places the center of this baffler with the rectangle core that cuts, and puts into getter, and lower floor's baffler is covered on the core by folding line, and the four edges of two bafflers contacts is welded, and forms plate object;
(8) on air exchanging hole, connect copper pipe, adopt have tail vacuum pressure sealing technology to finish to bleed, soldering and sealing, process for cooling process, degree of vacuum is 10 in the plate
-1Pa～10
-4Pa;
(9) with sealing cover it is covered, rapidly sealing cover and baffler are welded together, prepare high-strength vacuum insulation plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103089910A CN103216706A (en) | 2012-08-28 | 2012-08-28 | High-strength vacuum heat-insulating plate and preparation method thereof |
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| CN2012103089910A CN103216706A (en) | 2012-08-28 | 2012-08-28 | High-strength vacuum heat-insulating plate and preparation method thereof |
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| CN103216706A true CN103216706A (en) | 2013-07-24 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294951A (en) * | 2013-07-17 | 2015-01-21 | 戴长虹 | Metal vacuum composite insulation plate and preparation method thereof |
| CN104373769A (en) * | 2013-08-12 | 2015-02-25 | 苏州维艾普新材料股份有限公司 | Non-resilient vacuum insulated panel |
| CN108382021A (en) * | 2018-05-02 | 2018-08-10 | 苏州亿禾永利新能源有限公司 | A kind of refractory metal foil vacuum heat insulation materials and preparation method thereof |
| CN108495795A (en) * | 2015-11-25 | 2018-09-04 | 野醍冷却器有限责任公司 | Thermally insulated container with vacuum insulation panel and method |
| CN109312889A (en) * | 2016-06-13 | 2019-02-05 | 日新制钢株式会社 | The manufacturing method and vacuum insulating panel of vacuum insulating panel |
| WO2020042974A1 (en) * | 2018-08-27 | 2020-03-05 | 广州力及热管理科技有限公司 | Thin-type vacuum heat insulating sheet and manufacturing method therefor |
| CN115628048A (en) * | 2022-10-25 | 2023-01-20 | 中国石油大学(华东) | Underground gas invasion while drilling monitoring device and working method |
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| US5500305A (en) * | 1990-09-24 | 1996-03-19 | Aladdin Industries, Inc. | Vacuum insulated panel and method of making a vacuum insulated panel |
| US20040058119A1 (en) * | 2000-08-21 | 2004-03-25 | Energy Storage Technologies, Inc. | Vacuum insulated panel and container |
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Non-Patent Citations (1)
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294951A (en) * | 2013-07-17 | 2015-01-21 | 戴长虹 | Metal vacuum composite insulation plate and preparation method thereof |
| CN104373769A (en) * | 2013-08-12 | 2015-02-25 | 苏州维艾普新材料股份有限公司 | Non-resilient vacuum insulated panel |
| CN108495795A (en) * | 2015-11-25 | 2018-09-04 | 野醍冷却器有限责任公司 | Thermally insulated container with vacuum insulation panel and method |
| CN108495795B (en) * | 2015-11-25 | 2021-01-15 | 野醍冷却器有限责任公司 | Insulated container with vacuum insulated panel and method |
| CN109312889A (en) * | 2016-06-13 | 2019-02-05 | 日新制钢株式会社 | The manufacturing method and vacuum insulating panel of vacuum insulating panel |
| CN108382021A (en) * | 2018-05-02 | 2018-08-10 | 苏州亿禾永利新能源有限公司 | A kind of refractory metal foil vacuum heat insulation materials and preparation method thereof |
| WO2020042974A1 (en) * | 2018-08-27 | 2020-03-05 | 广州力及热管理科技有限公司 | Thin-type vacuum heat insulating sheet and manufacturing method therefor |
| CN115628048A (en) * | 2022-10-25 | 2023-01-20 | 中国石油大学(华东) | Underground gas invasion while drilling monitoring device and working method |
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Application publication date: 20130724 |