CN1069514C - Vacuum heat-insulating container - Google Patents
Vacuum heat-insulating container Download PDFInfo
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- CN1069514C CN1069514C CN 95120470 CN95120470A CN1069514C CN 1069514 C CN1069514 C CN 1069514C CN 95120470 CN95120470 CN 95120470 CN 95120470 A CN95120470 A CN 95120470A CN 1069514 C CN1069514 C CN 1069514C
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- vacuum heat
- vacuum
- insulating container
- insulating
- lid
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- 239000000463 material Substances 0.000 claims abstract description 25
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 229920003023 plastic Polymers 0.000 claims abstract description 20
- 239000004964 aerogel Substances 0.000 claims abstract description 14
- 239000003463 adsorbent Substances 0.000 claims abstract description 13
- 239000011521 glass Substances 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims description 18
- 239000011856 silicon-based particle Substances 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 239000002808 molecular sieve Substances 0.000 claims description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 20
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000011863 silicon-based powder Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 15
- 238000009413 insulation Methods 0.000 description 13
- 239000006260 foam Substances 0.000 description 11
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
- 229920005830 Polyurethane Foam Polymers 0.000 description 4
- 239000011496 polyurethane foam Substances 0.000 description 4
- 239000004604 Blowing Agent Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002510 pyrogen Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000002937 thermal insulation foam Substances 0.000 description 1
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- Thermally Insulated Containers For Foods (AREA)
- Cookers (AREA)
- Thermal Insulation (AREA)
Abstract
The present invention relates to a vacuum heat-insulating container, particularly to the vacuum heat-insulating container used for a smoldering pot. The present invention is characterized in that a container body and/or the inner layer and the outer layer of a cover body of the container body of the heat-insulating container are made of hard materials, such as metal, glass, etc., to make the inner layer and the outer layer maintained in gaps; bubble foamed plastics having completely and slightly opening holes, artificial silicon powder, aerogel micro materials, etc. which are high heat resistant mediums and have an opening type micro air gap structure, and small quantity of gas adsorbent agents are filled into the gaps; the present invention is formed by that the gaps are sucked into a low vacuum state. The heat insulating container of the present invention can achieve needed vacuum and heat insulating effects in the low vacuum state to improve productive efficiency and reduce productive cost.
Description
The present invention relates to a kind of vacuum heat-insulating container, relate in particular to the used vacuum heat-insulating container of a kind of thermos-cooker.
Can be divided into two big main flows by commercially available thermos-cooker according to the structure of its thermal insulating warm-keeping layer, one is the stewing device that boils that No. 82201034 patent case disclosed.As shown in Figure 1, this stewing cool-bag that boils device is reached by outer pot 1 and is formed in order to the outer pot cover 2 of this outer pot 1 of Mi Gai.The institutes such as polyurethane foam 12 that outer pot 1 is solidified between inside and outside shell by hard resin system shell 10, metal system inner casing 11 and filling constitute.Outer pot cover 2 is also formed by upper cover body 20 and 22 filling curing of lower cover polyurethane foam 21 in hard resin system.This kind be stewing to be boiled device and why adopts polyurethane foam as heat-insulating material mainly to be because cheap, the unexpected shortage of the source of goods, foaming technique are easy, and has adiabatic heat-insulation effect to a certain degree.Yet, because the generation of its bubble is to utilize CFC, HCFC, pentane, carbon dioxide (CO
2) wait as blowing agent, and in the confined space that shell and inner casing surrounded, foam, so the bubble that is produced all belongs to closed separated foam, can't be evacuated and be flooded with gas that foaming produces such as air, CO
2And small amount of liquid.Though the thermal conductivity coefficient of gas is about the 1/4-1/2 of still air (0.03W/mK) in these bubbles, but with regard to the whole thermal conductivity coefficient (0.028W/mK) of separated foam foamed plastics, still rough suitable with still air, with the thermal conductivity coefficient (0.005W/mK/10 of vacuum state
-5Torr) compare, obviously high times (seeing also Fig. 5 (1)).On the other hand, polyurethane can damage the ozone layer as with the CFC foaming, if with HCFC, pentane, CO
2Make blowing agent, then thermal conductivity coefficient and durable years are all not as good as with CFC foaming.Therefore, the opinion with the viewpoint of adiabatic heat-insulation effect, the stewing still difficult ideal that claims of device of boiling of this kind.
Another kind of thermos-cooker is No. 79203468 vacuum insulation conditioning pot that the patent case is proposed.As shown in Figure 2, the cool-bag of this thermos-cooker system is by the outer pot 1 of double-layer stainless steel structure ' and form in order to cover the outer pot cover 2 of outer pot 1 ' opening ' institute.Outer pot 1 ' skin 10 ' and internal layer 11 ' intermediate gaps 12 ' for being pumped into 10
-5The torr vacuum, and outer 10 ' and internal layer 11 ' all within it on the side wall surface plating with reflecting layer 13 ', to reduce radiant heat transfer.Then use closed separated foam insulation foams 21 ' as for its outer pot cover 2 ' part as heat-insulating material.The thermos-cooker that this case provided,, is compared with aforesaid foamed plastics heat-insulating cool-bag so can reduce heat transmission significantly owing to use the vacuum insulation mode with cool-bag, has excellent adiabatic heat insulating effect (seeing also Fig. 4 and Fig. 5 (2)).
Yet this kind vacuum heat-insulating container also has its critical defect, that is,
1. this cool-bag be because must apply to the technology of vacuumizing, and in the gap of wide about 5m/m, vacuum must reach 10
-5Torr just can reach required adiabatic heat insulating effect.For reaching this kind vacuum, must use the technology that vacuumizes of height, and it vacuumizes time-consuming reaching about 1 hour, also to cooperate 600-1200 ℃ high-temperature baking burning just can finish, so pumpdown time, technology and cost of equipment have accounted for the overwhelming majority (about 9/10) of manufacturing cost, making the manufacturing cost of cool-bag to reduce, for being the thermos-cooker of main purpose to save the energy, is a big matter of regret in fact.
2. the outer pot interlayer gap of this cool-bag is the high vacuum state, and is indeformable for making it can resist an atmospheric pressure, and pot body compressive resistance must surpass 1kg/cm
2So, must use thicker steel plate.Yet steel plate is blocked up, certainly will increase the weight and the cost of cool-bag.Therefore, the dealer pot 1 ' the some positions of skin 10 ' and internal layer 11 ' select set thermal conductance lower but glass marble that intensity is very high or Ceramic Balls (not shown among Fig. 2) as supporter at interval, so that it is when using, outer 10 ' round flattening deformation with the reason atmospheric pressure of internal layer 11 ' not than sheet metal (0.3-0.5m/m).But, in that supporter part at interval is not set, then lack enough opposing intensity for the external impacts more than the normal applied stress, collision, so, drop accidentally on the ground or during the collision foreign object owing to using, often easily produce local deformation, be full of cracks and lose the vacuum heat-preserving ability.So this cool-bag is provided with the plastics bumper in exterior bottom, just this bumper only belongs to the measure of taking stopgap measures, and cool-bag has what is heard still the time because of dropping or collide the situation of scrapping.
3. this vacuum heat-insulating container is very high because of vacuum, even be not out of shape or chap because of dropping collision, also can use a period of time (after about 1 year) because of capillarity loses original vacuum gradually, to cause the reduction insulating power in reality.
The present invention grinds wound in view of the problem of above-mentioned existing thermos-cooker, its purpose is to provide a kind of can possess the vacuum heat-insulating container of required adiabatic heat-insulation ability with low vacuum, use solve because use the required height of high vacuum to vacuumize technology, long processing time, expensive device and manufacturing cost and be afraid of to impact, easy shortcomings such as the empty insulating power of distortion.
Another object of the present invention is then to provide that a kind of thermal conductivity factor is low, durability is high, light weight, easy to manufacture, cost is low and do not have the vacuum heat-insulating container of environmental protection misgivings.
Another purpose of the present invention possesses the vacuum heat-insulating container of above-mentioned every characteristics for a kind of vessel is provided.
The lid that provides a kind of covering container opening to use then is provided a further object of the present invention, and it has the vacuum heat-insulating container of the adiabatic heat-insulation ability of same excellence.
For reaching above-mentioned purpose, vacuum heat-insulating container of the present invention is internal layer, a skin of being made vessel and/or covering container body openings usefulness lid by hard material, make these ectonexines keep the gap, and in this gap, fill high thermal resistance medium with open little gap structure, give being evacuated to low vacuum and forming again.
Still can add a small amount of adsorbent in the crack between said vesse and/or the lid.
For making the relevant personnel be understood purpose of the present invention, technical characterictic and obvious improvement effect, describe embodiments of the invention in detail below in conjunction with accompanying drawing.
Fig. 1 is the cool-bag structure cutaway view of the thermos-cooker of No. 82201034 patent case;
Fig. 2 is the cool-bag structure cutaway view of the thermos-cooker of No. 79203468 patent case;
Fig. 3 is the structure cutaway view of the cool-bag embodiment of thermos-cooker of the present invention;
Fig. 4 is the cool-bag of the various media of filling of the present invention and the existing vacuum heat-insulating container comparative graph with regard to thermal conductivity coefficient and pressure dependence;
Fig. 5 is the vacuum heat-insulating container and existing comparison diagram of filling the vacuum heat-insulating container of separated foam foamed plastics with regard to whole thermal conductivity coefficient and pressure dependence of the various media of filling of the present invention.
As shown in Figure 3, the vacuum heat-insulating container of thermos-cooker of the present invention also is made up of outer pot 3 and lid 4.Outer pot 3 is to be connected airtight with internal layer 31 fits by the made skin 30 of hard material to form, skin 30 and 31 of internal layers maintain gap 32, filling has high thermal resistance medium 33 and a small amount of adsorbent 34 of opening the gap structure that declines in this gap 32 then, and the minuent that is evacuated again forms.
In order to make the hard material of skin 30 and internal layer 31, owing to not adopting high vacuum, so as long as possess general working strength, also without particular limitation basically, for example general stainless steel, alloy, glass and even ceramic material all can use.
The medium 33 that is filled in the gap 32 is not only a kind of high thermal resistance material, and has the open air gap that declines (gap or the hole of supplied gas circulation) structure, this little gap structure has heat conducting effect between the blocking-up gas molecule, as long as can eliminate the thermal convection current and the conduction of gas when being evacuated to low vacuum (10torr-0.01torr) fully.Again because little gap structure is open, so be suitable for vacuumizing.According to the experiment that the inventor carried out, as when using artificial silicon particle (the about 0.7 μ m of diameter), as long as in the vacuum of 1torr, can obtain existing thermos-cooker with vacuum heat-insulating container 10
-5Excellent adiabatic heat insulating effect during torr [seeing also Fig. 4, Fig. 5 (4)].In addition, as being medium, then as long as the vacuum of 10torr with aerogel particles (the about 0.1-0.02 μ of particle diameter m, the about 50nm of hole diameter), whole thermal conductivity coefficient promptly reaches 0.004 W/mK, and the more existing vacuum heat-insulating container of its adiabatic heat insulating effect is good [seeing also Fig. 4, Fig. 5 (5)].If use about 50 μ m of bubble diameter and the wide-open crack hole of bubble rigid foam, vacuum is evacuated to 10
-2Torr can bring into play vacuum insulation effect [seeing also Fig. 4, Fig. 5 (3)].Only used polyurethane foam is different in this foamed plastics and the aforementioned prior art, and the bubble of foamed plastics is open micropore among the present invention, and the genus hard material; The latter then is closed separated foam, uses soft material, not only can't vacuumize its thermal conductivity coefficient also high [please refer to Fig. 4 (1)].
On the other hand, if use the perlite particle of particle diameter as 0.6mm, vacuum must be 10
-5Thermal convection current and conduction that gas molecule collision is produced disappear [seeing also Fig. 4 (6)], but can increase because of contacting the thermal conductance of being given birth between perlite particle this moment.This shows that the gas molecule that can dielectric material be eliminated collides the heat transfer phenomenon that is produced each other and can not lead because of contact pyrogenicity again, very big to reaching effect influence of the present invention.Above-mentioned artificial silicon particle, aerogel particles, complete crack hole rigid foam are inventor's preferable discovery so far, only the material technology field extensively and progress rapidly, be enough to provide the material of identical or similar effect or the constituent ought be more than that.Therefore, self-evident, above-mentioned medium should not only be defined in artificial silicon particle or aerogel particles or crack hole rigid foam.
On the other hand, medium above-mentionedly is suitable for providing the effect of vacuum insulation except that having, it also can constitute comprehensive interval supporting role in the ectonexine gap of low vacuum, resistance to compression, the impact strength at each position of ectonexine are increased substantially equably, thereby, use the thickness of corrosion resistant plate can correspondingly to reduce (about 0.2m/m is promptly enough).
Adsorbent 34 is in order to the air of (or between medium 33 particles) in the absorption gap 32, uses required vacuum and the adiabatic heat-insulation ability kept, and to improve the durable years of container, it can be selected from materials such as activated carbon, molecular sieve, calcium oxide.
Aspect vacuumizing, vacuum of the present invention is to decide according to used medium, and for example, the complete crack hole rigid foam of aforementioned bubble aperture 50 μ m only need be evacuated to 10
-2Torr vacuum promptly has the vacuum insulation effect; The vacuum of the artificial silicon particle of diameter 0.7 μ m needs only 1torr, and the vacuum of diameter 0.1 μ m aerogel particles is in the promptly sufficient required effect [seeing also (3), (4), (5) of Fig. 4 and Fig. 5] that reaches of 10torr.Because vacuum is low, so baking temperature, capacity of equipment, vacuum pumping time all can reduce significantly.According to inventor's experiment, be evacuated to the vacuum (10 of above-mentioned scope
-2-10torr) only need 1 minute.
About lid 4, also skin 40 and the internal layer 41 by hard material system constituted, and is filled with above-mentioned high thermal resistance medium 43 and adsorbent 44 with the open gap structure that declines in its gap 42, gives being evacuated to low vacuum and forming again.As for relevant hard material, the detailed conditions and the outer pot of medium, adsorbent and vacuum aspect are roughly the same, see also above explanation.But mandatory declaration is, vacuum heat-insulating container with above-mentioned structure also can use the outer pot cover of filling foamed plastics and reach the adiabatic heat-insulation effect identical with this patent case with outer pot 3 as No. 79203486 patent case or its are implemented product, but as using the lid 4 with the present invention's structure, then the adiabatic heat-insulation effect of integral heat insulation container can further improve when indubitable.In addition, in the cool-bag that vessel (promptly being equivalent to above-mentioned outer pot) is made for the vacuum glass glass liner, use lid of the present invention, when replacing original plastics or cork lid, can remedy original lid insulating power defect of insufficient especially.In other words, vessel of the present invention (being outer pot) or lid system can use respectively or be used in combination.
In sum, the present invention has following advantages:
1. vessel of the present invention and lid are because in the gap of two-layer hard material Filling has the high thermal resistance medium of open little gap structure, so only need low in the gap The degree vacuum just can reach the excellent of existing vacuum heat-insulating container (being non-filler) Different effect. Therefore, vacuumize and to shorten to 1 fen by 1 hour required process time Clock except production efficiency significantly improves, baking temperature and vaccum-pumping equipment, is processed into This also correspondingly lowers significantly.
2. owing to use low vacuum, thus atmospheric pressure the relative pressure of pot body is alleviated, Medium in the gap again internally cladding material comprehensive supporting role is provided, so, Not only can use than the thin material manufacturing, to alleviate pot body weight and material cost, the pot body The intensity of external force resistance collision also improves relatively, compares with existing vacuum heat-insulating container , have not yielding breakage, the anti-characteristics of falling of antidetonation.
3. because the use of low vacuum and the open air gap medium that declines has been eliminated existing Vacuum heat-insulating container reduce vacuum because producing capillarity in use for some time The defective of degree.
4. be added with adsorbent in the pot body space of the present invention, vacuum can be kept At predetermined extent, in order to the long-term adiabatic heat insulating effect that keeps.
5. by above-mentioned 2,3,4 every characteristics, article of the present invention are with existing Like product is compared, and can prolong significantly its service life.
6. the present invention is not because using the foamed plastics with the CFC foaming, and it is smelly not have destruction The anxiety of oxygen layer, more non-foam ageing of plastics and produce the drawback of secondary public hazards.
7. structure of the present invention because of possess the adiabatic heat insulating effect excellence, easy to manufacture, cost is low, the anti-characteristics such as fall of light weight, antidetonation, so, except that thermos-cooker, also be applicable to other various types of cool-bags, for example daily thermos cup, the glass liner of a thermos flask etc.
Claims (33)
1. vacuum heat-insulating container, constituted by vessel and with the lid of the opening that covers this vessel, and this vessel and lid are made ectonexine by hard material, make between this ectonexine and keep the gap, it is characterized in that, in this gap, fill high thermal resistance medium, give vacuumizing again with open little gap structure; Described medium with the open gap structure that declines is to be selected from any of the crack hole of artificial silicon particle or aerogel particles or hard foamed plastics.
2. vacuum heat-insulating container as claimed in claim 1 is characterized in that, also is filled with adsorbent in the described gap.
3. vacuum heat-insulating container as claimed in claim 1 or 2 is characterized in that, described hard material is any material that is selected from corrosion resistant plate or glass.
4. vacuum heat-insulating container as claimed in claim 1 is characterized in that, the described opening gap structure that declines is that the artificial silicon particle of 0.7 μ m constitutes by diameter.
5. vacuum heat-insulating container as claimed in claim 1 is characterized in that, the described opening gap structure that declines is made of the aerogel particles of diameter 0.1-0.02 μ m, hole diameter 50nm.
6. vacuum heat-insulating container as claimed in claim 1 is characterized in that, the described opening gap structure that declines is made of the crack hole of the hard of bubble diameter 50nm foamed plastics.
7. vacuum heat-insulating container as claimed in claim 2 is characterized in that, described adsorbent is to be selected from any of activated carbon, molecular sieve or calcium oxide.
8. vacuum heat-insulating container as claimed in claim 1 is characterized in that, described vacuum is 10
-2-10torr.
9. as claim 4 or 8 described vacuum heat-insulating containers, it is characterized in that described medium is artificial silicon particle, vacuum is 1torr.
10. as claim 5 or 8 described vacuum heat-insulating containers, it is characterized in that described medium is an aerogel particles, vacuum is 10torr.
11., it is characterized in that described medium is the crack hole of a hard foamed plastics as claim 6 or 8 described vacuum heat-insulating containers, vacuum is 10
-2-10torr.
12. a vacuum heat-insulating container is an ectonexine of being made vessel by hard material, makes between this ectonexine to keep the gap, it is characterized in that, fills the high thermal resistance medium with open little gap structure in this gap, gives vacuumizing again; Described medium with the open gap structure that declines is to be selected from any of the crack hole of artificial silicon particle or aerogel particles or hard foamed plastics.
13. vacuum heat-insulating container as claimed in claim 12 is characterized in that, also is filled with adsorbent in the described gap.
14., it is characterized in that described hard material is any material that is selected from corrosion resistant plate or glass as claim 12 or 13 described vacuum heat-insulating containers.
15. vacuum heat-insulating container as claimed in claim 12 is characterized in that, the described opening gap structure that declines is made of the artificial silicon particle of diameter by 0.7 μ m.
16. vacuum heat-insulating container as claimed in claim 12 is characterized in that, the described opening gap structure that declines is that aerogel particles by diameter 0.1-0.02 μ m, hole diameter 50nm is constituted.
17. vacuum heat-insulating container as claimed in claim 12 is characterized in that, the described opening gap structure that declines is made of the crack hole of the hard of bubble diameter 50nm foamed plastics.
18. vacuum heat-insulating container as claimed in claim 13 is characterized in that, described adsorbent is to be selected from any of activated carbon, molecular sieve or calcium oxide.
19. vacuum heat-insulating container as claimed in claim 12 is characterized in that, described vacuum is 10
-2-10torr.
20., it is characterized in that described medium is artificial silicon particle as claim 15 or 19 described vacuum heat-insulating containers, vacuum is 1torr.
21., it is characterized in that described medium is an aerogel particles as claim 16 or 19 described vacuum heat-insulating containers, vacuum is 10torr.
22., it is characterized in that described medium is the crack hole of a hard foamed plastics as claim 17 or 19 described vacuum heat-insulating containers, vacuum is 10
-2-10torr.
23. the lid of a vacuum heat-insulating container is to make the ectonexine of covering container opening with lid by hard material, makes between this ectonexine to keep the gap, and fill the high thermal resistance medium with open little gap structure in this gap, gives vacuumizing again; Described medium with the open gap structure that declines is to be selected from any of the crack hole of artificial silicon particle or aerogel particles or hard foamed plastics.
24. the lid of vacuum heat-insulating container as claimed in claim 23 is characterized in that, also is filled with adsorbent in the described gap.
25. the lid as claim 23 or 24 described vacuum heat-insulating containers is characterized in that, described hard material is any material that is selected from corrosion resistant plate or glass.
26. the lid of vacuum heat-insulating container as claimed in claim 23 is characterized in that, the described opening gap structure that declines is made of the artificial silicon particle of diameter by 0.7 μ m.
27. the lid of vacuum heat-insulating container as claimed in claim 23 is characterized in that, the described opening gap structure that declines is that aerogel particles by diameter 0.1-0.02 μ m, hole diameter 50nm is constituted.
28. the lid of vacuum heat-insulating container as claimed in claim 23 is characterized in that, the described opening gap structure that declines is made of the crack hole of the hard of bubble diameter 50nm foamed plastics.
29. the lid of vacuum heat-insulating container as claimed in claim 24 is characterized in that, described adsorbent is to be selected from any of activated carbon, molecular sieve or calcium oxide.
30. the lid of vacuum heat-insulating container as claimed in claim 23 is characterized in that, described vacuum is 10
-2-10torr.
31. the lid as claim 26 or 30 described vacuum heat-insulating containers is characterized in that, described medium is artificial silicon particle, and vacuum is 1torr.
32. the lid as claim 27 or 30 described vacuum heat-insulating containers is characterized in that, described medium is an aerogel particles, and vacuum is 10torr.
33. the lid as claim 28 or 30 described vacuum heat-insulating containers is characterized in that, described medium is the crack hole of a hard foamed plastics, and vacuum is 10
-2-10torr.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95120470 CN1069514C (en) | 1995-12-28 | 1995-12-28 | Vacuum heat-insulating container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95120470 CN1069514C (en) | 1995-12-28 | 1995-12-28 | Vacuum heat-insulating container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1145769A CN1145769A (en) | 1997-03-26 |
| CN1069514C true CN1069514C (en) | 2001-08-15 |
Family
ID=5082308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95120470 Expired - Lifetime CN1069514C (en) | 1995-12-28 | 1995-12-28 | Vacuum heat-insulating container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1069514C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101019730A (en) * | 2007-03-13 | 2007-08-22 | 广州市盛怡五金铁艺品有限公司 | Thermos kettle |
| CN103319149B (en) * | 2012-03-21 | 2014-09-03 | 昆山蓝胜建材有限公司 | Low-heat-conductivity heat-insulating core plate in vacuum insulated panel for construction, and preparation method thereof |
| CN115500405A (en) * | 2022-10-10 | 2022-12-23 | 赵宇 | Tea curing process |
-
1995
- 1995-12-28 CN CN 95120470 patent/CN1069514C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1145769A (en) | 1997-03-26 |
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