CN109958838A - Improve the method and novel double-layer adiabatic heat-insulation structure of vessel insulation performance - Google Patents
Improve the method and novel double-layer adiabatic heat-insulation structure of vessel insulation performance Download PDFInfo
- Publication number
- CN109958838A CN109958838A CN201910316892.9A CN201910316892A CN109958838A CN 109958838 A CN109958838 A CN 109958838A CN 201910316892 A CN201910316892 A CN 201910316892A CN 109958838 A CN109958838 A CN 109958838A
- Authority
- CN
- China
- Prior art keywords
- heat
- insulation
- gallbladder
- insulation chamber
- liner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 126
- 238000000034 method Methods 0.000 title claims abstract description 17
- 210000000232 gallbladder Anatomy 0.000 claims abstract description 83
- 238000007789 sealing Methods 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims description 12
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 10
- 239000003365 glass fiber Substances 0.000 claims description 10
- 239000006261 foam material Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 12
- 239000011152 fibreglass Substances 0.000 description 9
- 239000011521 glass Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The present invention relates to a kind of methods and novel double-layer adiabatic heat-insulation structure for improving vessel insulation performance, and wherein method includes adding a heat-insulation chamber inside or outside the container with a sealing heat-insulation chamber, form double thermal insulation.Novel double-layer adiabatic heat-insulation structure includes outer gallbladder and liner, and middle gallbladder is provided between the outer gallbladder and liner, and the first sealing heat-insulation chamber is formed between outer gallbladder and middle gallbladder, and the second sealing heat-insulation chamber is formed between middle gallbladder and liner.By adding a heat-insulation chamber inside or outside traditional only container of a heat-insulation chamber, double thermal insulation is formed, the heat transference efficiency of heat-insulation chamber internal residual air is reduced, improves heat insulation.
Description
Technical field:
The present invention relates to a kind of methods and novel double-layer adiabatic heat-insulation structure for improving vessel insulation performance.
Background technique:
Cryogenic liquid heat preservation at present is typically all the vacuum heat-preserving form used, i.e., between the outer gallbladder and liner of container
Air in cavity is completely drawn out.It is set not have heat transfer medium, to guarantee container inner cryogenic liquid constant temperature.But in cavity
It can not accomplish that absolute vacuum, and outer gallbladder are connected with the metal of liner, in cavity inside residual air and metal connecting piece
Under common conductive force, cause the heat insulation effect inside container bad.
Summary of the invention:
The technical problems to be solved by the present invention are: providing a kind of method that vessel insulation performance can be improved.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: the method for improving vessel insulation performance is having
Add a heat-insulation chamber inside or outside the container for having a sealing heat-insulation chamber, an and heat-insulation chamber wherein, formed it is double-deck every
Heat.
As a preferred embodiment, one of heat-insulation chamber is vacuumized, another heat-insulation chamber is vacuumized or filled hair
Foam material.
As a preferred embodiment, when being vacuumized to heat-insulation chamber, container is placed in baking oven, in heating process
Or the heat-insulation chamber of the container after heating is vacuumized.
As a preferred embodiment, two heat-insulation chambers of the container respectively by be successively nested and be separated from each other liner,
Middle gallbladder, outer gallbladder are constituted, and wherein pass through the glass fibre reinforced plastic support mutually company of support between liner and middle gallbladder, between middle gallbladder and outer gallbladder respectively
It connects.
The beneficial effects of the present invention are: by adding one inside or outside traditional only container of a heat-insulation chamber
Heat-insulation chamber forms double thermal insulation, reduces the heat transference efficiency of heat-insulation chamber internal residual air, improves heat insulation.
Further filling-foam material, another heat-insulation chamber vacuumize the present invention in a wherein heat-insulation chamber, pass through this
Kind mode can prevent vacuum heat-insulation chamber from directly with the container external world or container interior contact, further decreasing the heat transmitting of residual air
Effect improves vessel insulation performance.
The present invention further by heating when vacuumizing to heat-insulation chamber or to container before vacuumizing, makes heat-insulated
Chamber internal steam is sufficiently extracted, and improves vacuum degree in heat-insulation chamber, reduces residual air content in heat-insulation chamber, and then reduce residual
Remaining air heat transference efficiency improves vessel insulation performance.
The present invention further connects liner, middle gallbladder, outer gallbladder, glass fibre reinforced plastic support thermal coefficient by using glass fibre reinforced plastic support
Low, heat transference efficiency is low, further decreases heat transference efficiency inside and outside whole container, improves heat insulation effect.
The further technical problems to be solved of the present invention are: providing a kind of novel double-layer adiabatic heat-insulation structure, the heat preservation knot
Structure can be such that the heat insulation effect of container is further promoted.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: novel double-layer adiabatic heat-insulation structure, including
Outer gallbladder and liner are provided with middle gallbladder between the outer gallbladder and liner, the first sealing heat-insulation chamber, middle gallbladder are formed between outer gallbladder and middle gallbladder
The second sealing heat-insulation chamber is formed between liner.
As a preferred embodiment, it is vacuumized in the first sealing heat-insulation chamber and the second sealing heat-insulation chamber.
As a preferred embodiment, it is vacuumized in the first sealing heat-insulation chamber, filled with hair in the second sealing heat-insulation chamber
Foam material.
As a preferred embodiment, pass through glass fibre reinforced plastic support respectively between the outer gallbladder and middle gallbladder, between middle gallbladder and liner
Mutually support connection.
The beneficial effects of the present invention are: made between outer gallbladder and middle gallbladder by increasing gallbladder in setting between liner and outer gallbladder,
The first sealing heat-insulation chamber and the second sealing heat-insulation chamber are respectively formed between middle gallbladder and liner, inside and outside two layers of heat-insulated reduction container
Heat transference efficiency improves heat insulation effect.
The present invention further by vacuumizing to the first sealing heat-insulation chamber and the second sealing heat-insulation chamber, in this way may be used
The rising of the residual air temperature in the second sealing heat-insulation chamber is prevented, and then reduces the temperature of the second sealing heat-insulation chamber residual air
Influence to container internal temperature improves vessel insulation performance.
The present invention in the first sealing heat-insulation chamber further by vacuumizing, filling-foam material in the second sealing heat-insulation chamber
Material is further increased using residual air in foamed material barrier the first sealing heat-insulation chamber to transferring heat energy inside container with this
The heat insulation effect of container.
The present invention further using between the external gallbladder of glass fibre reinforced plastic support and middle gallbladder, the company of being supported between middle gallbladder and liner
It connects, the glass reinforced plastic coefficient of heat conduction is low, can reduce heat transfer efficiency, to further make inside and outside whole container heat conduction efficiency into one
Step reduces, and improves vessel insulation effect.
Detailed description of the invention:
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is the half-sectional structure chart of the first specific embodiment of the invention；
Fig. 2 is the half-sectional structure chart of second of specific embodiment of the invention.
In Fig. 1 and Fig. 2: 1, outer gallbladder, 2, liner, 3, middle gallbladder, the 4, first sealing heat-insulation chamber, the 5, second sealing heat-insulation chamber, 6,
Foamed material, 7, glass fibre reinforced plastic support, 7-1, the first glass reinforced plastic support circle, 7-2, the second glass reinforced plastic support circle, 7-3, third glass
Bracing members circle, 8, filling pipe, 9, first annular sealing plate, 10, vacuumizing joint, the 11, second ring sealing plate.
Specific embodiment:
With reference to the accompanying drawing, detailed description of the present invention specific embodiment.
Embodiment 1:
In order to facilitate understanding, using Fig. 1 as reference, the method for improving vessel insulation performance, this method specifically: have
A heat-insulation chamber is added inside or outside the container of one sealing heat-insulation chamber, forms double thermal insulation.In a wherein heat-insulation chamber
Filling-foam material vacuumizes another heat-insulation chamber.When vacuumizing to heat-insulation chamber, container is placed in baking oven
It is interior, the heat-insulation chamber of the container in heating process is vacuumized.Two heat-insulation chambers of the container are respectively by being successively nested and phase
Liner 2, middle gallbladder 3, the outer gallbladder 1 mutually separated is constituted, and wherein passes through glass respectively between liner 2 and middle gallbladder 3, between middle gallbladder 3 and outer gallbladder 1
The mutually support connection of glass steel bracket 7.
It can be effectively reduced the heat transference efficiency inside and outside container by the above method, to improve the heat insulating ability of container
Energy.
It is a kind of specific embodiment of novel double-layer adiabatic heat-insulation structure based on the above method below, as shown in Figure 1,
The novel double-layer adiabatic heat-insulation structure includes outer gallbladder 1 and liner 2, and middle gallbladder 3, outer gallbladder 1 are provided between the outer gallbladder 1 and liner 2
The first sealing heat-insulation chamber 4 is formed between middle gallbladder 3, and the second sealing heat-insulation chamber 5 is formed between middle gallbladder 3 and liner 2.First sealing every
It is filled with foamed material 6 in hot chamber 4, is vacuumized in the second sealing heat-insulation chamber 5.Between the outer gallbladder 1 and middle gallbladder 3, middle gallbladder 3 and interior
Respectively by the mutually support connection of glass fibre reinforced plastic support 7 between gallbladder 2, specific connection structure is as shown in Figure 1: in the inner bottom surface of outer gallbladder 1
One the first glass reinforced plastic support circle 7-1 is set, then middle gallbladder 3 is placed on the first glass reinforced plastic support circle 7-1, then passes through connection
Vacuumizing joint 10 on outer gallbladder vacuumizes the first sealing heat-insulation chamber 4；The inner bottom surface of middle gallbladder 3 is provided with the second glass reinforced plastic
Bracing ring 7-2, liner 2 is placed in middle gallbladder 3 and the bottom of liner 2 is shelved on the second glass reinforced plastic support circle 7-2, in middle gallbladder 3
Setting up and down on peripheral wall there are two third glass reinforced plastic support circle 7-3, for gallbladder 3 and liner 2 in fixing.
In the present embodiment, container upper end is open, and 2 upper end of liner is lower than middle gallbladder 3 and outer gallbladder 1, and 2 upper end of liner passes through first
The inner sidewall of ring sealing plate 9 and liner 2 is tightly connected, and is connected on first annular sealing plate 9 and is sealed what heat-insulation chamber 5 communicated with second
Pipe 8, middle gallbladder 3 and 1 upper end of outer gallbladder is filled to be tightly connected by the second ring sealing plate 11, it is heat-insulated to the second sealing by filling pipe 8
It is filled with foamed material 6 in chamber 5, using 6 positioning liner 2 of foamed material and middle gallbladder 3, while improving the thermal insulation property of liner 2.
It when to the second sealing 5 filling-foam material 6 of heat-insulation chamber, can be carried out by two ways, first way is first
Second sealing heat-insulation chamber 5 is vacuumized, then carries out the filling of foamed material 6 again, the second way is first annular
A venthole (not shown) is opened up on sealing plate, with filling pipe 8 formed convection current, then from filling pipe 8 to second sealing every
Hot chamber is filled with foamed material 6, and foamed material foaming and intumescing in the second sealing heat-insulation chamber 5 by second seals gas in heat-insulation chamber 5
It is discharged and empties from venthole.
The working principle of the present embodiment is: by increasing gallbladder 3 in setting between liner 2 and outer gallbladder 1, making outer gallbladder 1 in
The first sealing heat-insulation chamber 4 and the second sealing heat-insulation chamber 5 are respectively formed between gallbladder 3, between middle gallbladder 3 and liner 2, it is heat-insulated using two layers
Heat transference efficiency inside and outside container is reduced, heat insulation effect is improved.The filling-foam material in the second sealing heat-insulation chamber 5 simultaneously, first
Sealing heat-insulation chamber 4 vacuumize, in this way reduce second sealing 5 two sides of heat-insulation chamber temperature difference, reduce by second sealing every
The heat transfer effect of hot chamber 5, further increases vessel insulation performance.Further using the external gallbladder of glass fibre reinforced plastic support and middle gallbladder it
Between, between middle gallbladder and liner be supported connection, the glass reinforced plastic coefficient of heat conduction is low, can reduce heat transfer efficiency, thus further
Heat conduction efficiency inside and outside whole container is further decreased, vessel insulation effect is improved.
Certainly, in addition to the above implementation exceptions, can also be to being vacuumized in the second sealing heat-insulation chamber 4, first seals in heat-insulation chamber 5
Filling-foam material 6.It is influenced in this way using residual air in the barrier of foamed material 6 second sealing heat-insulation chamber by external high temperature,
The heat insulation effect of container is further increased with this.The embodiment is to have done on the basis of embodiment as shown in Figure 1 simply
Variation, not another Detailed description of the invention herein.
Heretofore described foamed material 6 refers to be foamed to obtain by foaming agent to raw material such as plastics, rubber
More gap thermal insulation materials, which can be hard, is also possible to soft.
Embodiment 2:
As shown in Fig. 2, the structure of container is substantially the same manner as Example 1, and difference is in the present embodiment, in the present embodiment,
First sealing heat-insulation chamber 4 and second sealing heat-insulation chamber 5 be evacuated, to second sealing heat-insulation chamber 5 vacuumized when
It waits, is directly evacuated by filling pipe 8.
The thermal insulation property of container can be equally effectively improved using this form.
The principles and effects of the invention, and the embodiment that part uses only is illustrated in above-described embodiment,
And is not intended to limit the present invention；It should be pointed out that for those of ordinary skill in the art, not departing from the invention structure
Under the premise of think of, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Claims (8)
1. the method for improving vessel insulation performance, which is characterized in that inside or outside the container with a sealing heat-insulation chamber
A heat-insulation chamber is added, double thermal insulation is formed.
2. the method according to claim 1 for improving vessel insulation performance, which is characterized in that taken out to one of heat-insulation chamber
Vacuum, vacuumizes another heat-insulation chamber or filling-foam material.
3. the method according to claim 2 for improving vessel insulation performance, which is characterized in that true take out to heat-insulation chamber
When empty, container is placed in baking oven, the heat-insulation chamber of the container in heating process or after heating is vacuumized.
4. the method according to claim 3 for improving vessel insulation performance, which is characterized in that two of the container are heat-insulated
Chamber is made of the liner, middle gallbladder, outer gallbladder for being successively nested and being separated from each other respectively, wherein between liner and middle gallbladder, middle gallbladder and outer gallbladder
Between connection is mutually supported by glass fibre reinforced plastic support respectively.
5. a kind of novel double-layer adiabatic heat-insulation structure using any the method for the claims 1~4, including outer gallbladder (1)
With liner (2), which is characterized in that be provided with middle gallbladder (3) between the outer gallbladder (1) and liner (2), outer gallbladder (1) and middle gallbladder (3) it
Between formed first sealing heat-insulation chamber (4), between middle gallbladder (3) and liner (2) formed second seal heat-insulation chamber (5).
6. novel double-layer adiabatic heat-insulation structure according to claim 5, which is characterized in that the first sealing heat-insulation chamber
(4) and in the second sealing heat-insulation chamber (5) it vacuumizes.
7. novel double-layer adiabatic heat-insulation structure according to claim 5, which is characterized in that the first sealing heat-insulation chamber
(4) it is vacuumized in, is filled with foamed material (6) in the second sealing heat-insulation chamber (5).
8. novel double-layer adiabatic heat-insulation structure according to claim 5, which is characterized in that the outer gallbladder (1) and middle gallbladder (3)
Between, pass through glass fibre reinforced plastic support (7) mutually support connection between middle gallbladder (3) and liner (2) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910316892.9A CN109958838A (en) | 2019-04-19 | 2019-04-19 | Improve the method and novel double-layer adiabatic heat-insulation structure of vessel insulation performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910316892.9A CN109958838A (en) | 2019-04-19 | 2019-04-19 | Improve the method and novel double-layer adiabatic heat-insulation structure of vessel insulation performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109958838A true CN109958838A (en) | 2019-07-02 |
Family
ID=67026178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910316892.9A Pending CN109958838A (en) | 2019-04-19 | 2019-04-19 | Improve the method and novel double-layer adiabatic heat-insulation structure of vessel insulation performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109958838A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111728119A (en) * | 2020-07-08 | 2020-10-02 | 大连工业大学 | Vacuum heat insulation type food low-temperature cooking equipment |
| CN116833689A (en) * | 2023-08-21 | 2023-10-03 | 东莞市喜点电器有限公司 | Manufacturing method of non-circular vacuum container |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2680614Y (en) * | 2004-02-02 | 2005-02-23 | 王键 | Special type fresh keeping transfer container |
| CN1751636A (en) * | 2004-09-22 | 2006-03-29 | 黄跃明 | Energy saving drinking water apparatus |
| CN202186573U (en) * | 2011-08-08 | 2012-04-11 | 张相勇 | Thermos cup with inside painting |
| CN103343878A (en) * | 2013-07-26 | 2013-10-09 | 江南工业集团有限公司 | Vacuum pumping device for interlayer of cryogenic insulation cylinder |
| CN205556765U (en) * | 2016-05-13 | 2016-09-07 | 晋谱（福建）光电科技有限公司 | Vacuum ion evaporation coating film device |
| CN210123066U (en) * | 2019-04-19 | 2020-03-03 | 张家港保税区蓝山装备科技有限公司 | Novel double-layer heat insulation structure |
-
2019
- 2019-04-19 CN CN201910316892.9A patent/CN109958838A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2680614Y (en) * | 2004-02-02 | 2005-02-23 | 王键 | Special type fresh keeping transfer container |
| CN1751636A (en) * | 2004-09-22 | 2006-03-29 | 黄跃明 | Energy saving drinking water apparatus |
| CN202186573U (en) * | 2011-08-08 | 2012-04-11 | 张相勇 | Thermos cup with inside painting |
| CN103343878A (en) * | 2013-07-26 | 2013-10-09 | 江南工业集团有限公司 | Vacuum pumping device for interlayer of cryogenic insulation cylinder |
| CN205556765U (en) * | 2016-05-13 | 2016-09-07 | 晋谱（福建）光电科技有限公司 | Vacuum ion evaporation coating film device |
| CN210123066U (en) * | 2019-04-19 | 2020-03-03 | 张家港保税区蓝山装备科技有限公司 | Novel double-layer heat insulation structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111728119A (en) * | 2020-07-08 | 2020-10-02 | 大连工业大学 | Vacuum heat insulation type food low-temperature cooking equipment |
| CN116833689A (en) * | 2023-08-21 | 2023-10-03 | 东莞市喜点电器有限公司 | Manufacturing method of non-circular vacuum container |
| CN116833689B (en) * | 2023-08-21 | 2024-05-31 | 东莞市喜点电器有限公司 | Manufacturing method of non-circular vacuum container |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109958838A (en) | Improve the method and novel double-layer adiabatic heat-insulation structure of vessel insulation performance | |
| CN201140860Y (en) | Vacuum thermal insulation fresh-keeping food container | |
| CN104712899B (en) | A kind of cryogenic liquid accumulating tank of vacuum heat-insulating plate insulation | |
| CN205525873U (en) | Multi -functional storage vessel | |
| CN107781580A (en) | The production method and vacuum heat-insulating plate of a kind of vacuum heat-insulating plate | |
| CN106662375A (en) | Vacuum damping element with thermoelectric element | |
| CN209026391U (en) | A kind of composite evacuated adiabatic apparatus plate | |
| EP3387350A1 (en) | Vacuum insulation structures with a filler insulator | |
| CN203336216U (en) | Cold-insulating storage tank | |
| CN109997005A (en) | Vacuum insulation element | |
| CN111255981A (en) | Plate of heat-insulating container and heat-insulating container | |
| CN205243430U (en) | Aerogel heat insulation oil pipe | |
| CN210123066U (en) | Novel double-layer heat insulation structure | |
| CN107830683A (en) | A kind of vacuum heat insulating plate structure | |
| CN201907792U (en) | Vacuum heat preservation oil tank | |
| CN110356718A (en) | A kind of novel heat-insulation dixie cup | |
| CN105078133A (en) | Inner container structure with aluminum foil for stainless steel heat-insulation cup and process for manufacturing inner container structure | |
| CN212840677U (en) | Vacuum multilayer heat insulation low temperature container intermediate layer nitrogen gas washes replacement system | |
| CN103393363A (en) | Vacuum heat-preserving and thermal insulation device with internally-arranged light-reflecting layers | |
| CN211059794U (en) | Pearl sand filling device | |
| CN209836137U (en) | Fermentation device for wine making | |
| CN108506649A (en) | The production method of heat-insulating profile | |
| CN203898116U (en) | Vacuum warming insulated device increasing seal length | |
| CN107795845A (en) | Three-layer metal wall contains storage tank entirely | |
| CN105396525B (en) | A kind of closed pyroreaction kettle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |