CN112113134A - High-efficient adiabatic liquid nitrogen storage jar - Google Patents
High-efficient adiabatic liquid nitrogen storage jar Download PDFInfo
- Publication number
- CN112113134A CN112113134A CN202011144792.1A CN202011144792A CN112113134A CN 112113134 A CN112113134 A CN 112113134A CN 202011144792 A CN202011144792 A CN 202011144792A CN 112113134 A CN112113134 A CN 112113134A
- Authority
- CN
- China
- Prior art keywords
- heat
- liquid nitrogen
- tank
- inner tank
- nitrogen storage
- 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
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 239000007788 liquid Substances 0.000 title claims abstract description 27
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 27
- 239000010410 layer Substances 0.000 claims abstract description 53
- 238000009413 insulation Methods 0.000 claims abstract description 38
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 239000011229 interlayer Substances 0.000 claims abstract description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 15
- 239000011888 foil Substances 0.000 claims abstract description 15
- 238000005253 cladding Methods 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 7
- 239000002356 single layer Substances 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 4
- 230000037303 wrinkles Effects 0.000 claims description 4
- 239000005030 aluminium foil Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000001704 evaporation Methods 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract description 2
- 238000004804 winding Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000002257 embryonic structure Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 210000000130 stem cell Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/04—Vessels not under pressure with provision for thermal insulation by insulating layers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0304—Thermal insulations by solid means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0304—Thermal insulations by solid means
- F17C2203/0308—Radiation shield
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermal Insulation (AREA)
Abstract
The invention relates to the technical field of storage tanks, in particular to a high-efficiency heat-insulating liquid nitrogen storage tank which comprises an outer shell, an inner tank and a vacuum heat-insulating interlayer arranged between the outer shell and the inner tank, wherein an upper end enclosure coating, a tank body coating and a lower end enclosure coating which respectively coat the top, the tank body and the bottom of the inner tank are arranged in the vacuum heat-insulating interlayer, and the vacuum heat-insulating interlayer, the tank body coating and the lower end enclosure coating are all formed by alternately stacking a plurality of layers of heat-insulating paper and a plurality of layers of aluminum foil layers which coat the outer wall. The invention adopts the heat-insulating paper and the aluminum foil layer which are formed by multi-layer overlapping to form the heat-proof radiation screen to obstruct heat transmission, solves the problems of heat insulation and heat conduction of the vacuum heat-insulating interlayer, and improves the heat insulation and heat preservation performance of the liquid nitrogen storage tank, thereby reducing the evaporation rate of the liquid nitrogen in the tank and saving the consumption of the liquid nitrogen.
Description
Technical Field
The invention relates to the technical field of storage tanks, in particular to a high-efficiency heat-insulating liquid nitrogen storage tank.
Background
The liquid nitrogen storage tank is a container device which can store biological products (such as blood, sperms, embryos, stem cells, various biological tissues and the like) for a long time by utilizing a low-temperature environment generated by evaporating and absorbing heat by liquid nitrogen in a container and can effectively keep the biological activity. The liquid nitrogen storage tank mainly comprises a container shell, a container inner container and a vacuum heat insulation interlayer positioned between the container shell and the container inner container.
At present, the vacuum heat insulation interlayer adopts a structure of winding heat insulation paper in multiple layers, but the structure of winding heat insulation paper in multiple layers has the following defects:
1. the multilayer winding mode needs to use a mechanical winding machine with professional design (the defects of pollution, breakage, damage, uneven winding force and the like caused by manual winding), and has high cost and high expense;
2. due to the structural design of the tank body of the liquid nitrogen storage tank, the winding is asymmetric, so that the number of wound layers is not uniform, the number of layers of some parts is large, the number of layers of some parts is small, and the winding tightness between every two layers is inconsistent.
Disclosure of Invention
The invention aims to provide a high-efficiency heat-insulation liquid nitrogen storage tank, which adopts a heat-insulation paper and an aluminum foil layer which are laminated in multiple layers to form a heat-radiation-proof screen to obstruct heat transmission so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high-efficient adiabatic liquid nitrogen storage jar, includes shell, inner tank and sets up the adiabatic intermediate layer of vacuum between shell and inner tank, be provided with the upper seal head cladding quilt, the ladle body cladding quilt and the lower seal head cladding quilt of including tank deck portion, ladle body and bottom respectively the cladding in the adiabatic intermediate layer of vacuum, and the three forms by a plurality of layers of adiabatic paper and a plurality of layers of aluminium foil layer interval stack on the inner tank outer wall of cladding.
Optionally, the single-layer heat-insulating paper and the single-layer aluminum foil layer are combined together to form a composite layer, and the composite layer is arranged in 10-60 layers.
Optionally, the heat insulation paper and the aluminum foil layer and the heat insulation paper and the outer wall of the inner tank are bonded together.
Optionally, the upper end enclosure coating and the lower end enclosure coating are both in a circular structure, and the tank body coating is in a rectangular structure; the lower end enclosure coating quilt is uniformly provided with a plurality of triangular notches along the annular shape so as to reduce wrinkles generated when the lower end enclosure coats the bottom of the coated inner tank.
Optionally, the heat insulation paper is breathable heat insulation paper, and the aluminum foil layer is randomly provided with a plurality of breathable pores.
Optionally, the bottom of the inner tank is of a double-layer structure, and liquid nitrogen is filled in the inner tank; and a vacuum pumping valve communicated with the vacuum heat insulation interlayer is arranged on the shell.
Compared with the prior art, the invention provides a high-efficiency heat-insulation liquid nitrogen storage tank which has the following beneficial effects:
1. the invention adopts the heat-insulating paper and the aluminum foil layer which are formed by multilayer overlapping to form the heat-proof radiation screen to obstruct heat transmission, solves the problems of heat insulation and heat conduction of the vacuum heat-insulating interlayer, and improves the heat insulation and heat preservation performance of the liquid nitrogen storage tank, thereby reducing the evaporation rate of the liquid nitrogen in the tank and saving the consumption of the liquid nitrogen;
2. according to the invention, the lower end enclosure coating quilt is uniformly provided with the triangular gaps along the annular shape, and the existence of the triangular gaps reduces wrinkles generated when the lower end enclosure coats the bottom of the coated inner tank.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic view of the structure of the upper cap coating of the present invention;
FIG. 3 is a schematic view showing the structure of a can body coating according to the present invention;
fig. 4 is a schematic structural view of the lower head cover in the invention.
In the figure: 1. a housing; 2. an inner tank; 3. a vacuum heat insulation interlayer; 4. an upper end cap coating; 5. the can body is covered; 6. the lower end enclosure is covered; 7. a thermal insulation paper; 8. an aluminum foil layer; 9. and (4) vacuumizing the valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): referring to fig. 1, the present application provides a liquid nitrogen storage tank with high thermal insulation efficiency, which includes an outer shell 1, an inner tank 2, and a vacuum insulation interlayer 3 disposed between the outer shell 1 and the inner tank 2. The bottom of the inner tank 2 is of a double-layer structure, and liquid nitrogen is filled in the inner tank; the shell 1 is provided with a vacuum-pumping valve 9 communicated with the vacuum heat-insulating interlayer 3. The vacuum heat insulation interlayer 3 is provided with an upper seal head coating quilt 4, a tank body coating quilt 5 and a lower seal head coating quilt 6 which are respectively coated on the top, the tank body and the bottom of the inner tank 2, and the three are formed by stacking a plurality of layers of heat insulation paper 7 and a plurality of layers of aluminum foil layers 8 coated on the outer wall of the inner tank 2 at intervals.
The heat insulation paper 7 is breathable heat insulation paper and has good air permeability, flame retardance and stability. A plurality of small air holes are randomly formed in the aluminum foil layer 8, so that the air flow during the vacuum pumping is facilitated, and the air between the heat-insulating paper 7 and the aluminum foil layer 8 is more easily pumped out. Wherein, the heat insulation paper 7 and the aluminum foil layer 8 and the heat insulation paper 7 and the outer wall of the inner tank 2 are bonded. The single-layer heat insulation paper 7 and the single-layer aluminum foil layer 8 are combined together to form a composite layer, and the composite layer is provided with a combination of 10 layers, 20 layers, 30 layers, 40 layers, 50 layers and 60 layers.
Referring to fig. 2, the upper end enclosure 4 is in a circular structure, and during installation, the upper end enclosure 4 needs to be spread and covered on the top of the inner tank 2.
Referring to fig. 3, the can body coating 5 is rectangular when not installed, and needs to be surrounded by the inner can 2 to form a circular tube structure when installed.
Referring to fig. 4, the lower head covering quilt 6 is circular, and the lower head covering quilt 6 is uniformly provided with a plurality of triangular gaps along the circular shape, so that the existence of the triangular gaps reduces wrinkles generated when the lower head covering quilt 6 covers the bottom of the inner tank 2.
After the vacuum insulation interlayer 3 is installed between the outer shell 1 and the inner tank 2, the vacuum insulation interlayer 3 needs to be vacuumized. Since the air molecules of the vacuum insulation interlayer 3 are extracted, heat conduction and heat convection are minimized with relatively few air molecules remaining, i.e., the vacuum insulation interlayer 3 achieves the effects of preventing heat radiation and insulating heat.
In conclusion, the vacuum insulation interlayer 3 plays a role: firstly, the vacuum environment reduces heat conduction and heat convection to the maximum extent; secondly, the composite layer is utilized to prevent heat radiation.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a high-efficient adiabatic liquid nitrogen storage jar, includes shell (1), inner tank (2) and sets up vacuum insulation intermediate layer (3) between shell (1) and inner tank (2), its characterized in that, be provided with in vacuum insulation intermediate layer (3) respectively the cladding at the last head cladding quilt (4) of inner tank (2) top, can body and bottom, can body cladding quilt (5) and low head cladding quilt (6), and the three forms by the stack of a plurality of layers of adiabatic paper (7) and a plurality of layers of aluminium foil layer (8) interval on inner tank (2) outer wall.
2. A highly efficient insulating liquid nitrogen storage tank as claimed in claim 1, wherein the single layer of insulating paper (7) and the single layer of aluminium foil layer (8) are combined together to form a composite layer, and the composite layer is arranged in 10-60 layers.
3. The liquid nitrogen storage tank with high thermal insulation performance as claimed in claim 1, wherein the thermal insulation paper (7) is bonded to the aluminum foil layer (8) and the thermal insulation paper (7) is bonded to the outer wall of the inner tank (2).
4. The high-efficiency heat-insulating liquid nitrogen storage tank as claimed in claim 1, wherein the upper head cover coat (4) and the lower head cover coat (6) are both in a circular structure, and the tank body cover coat (5) is in a rectangular structure; wherein, the lower end enclosure coating quilt (6) is evenly provided with a plurality of triangular gaps along the ring shape to reduce the wrinkles generated when the lower end enclosure coating quilt (6) coats the bottom of the inner tank (2).
5. The liquid nitrogen storage tank of claim 1, wherein the heat-insulating paper (7) is a breathable heat-insulating paper, and the aluminum foil layer (8) is randomly provided with a plurality of breathable pores.
6. A highly efficient heat insulating liquid nitrogen storage tank as claimed in claim 1, wherein the bottom of said inner tank (2) is a double-layer structure filled with liquid nitrogen; and a vacuum pumping valve (9) communicated with the vacuum heat insulation interlayer (3) is arranged on the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144792.1A CN112113134A (en) | 2020-10-23 | 2020-10-23 | High-efficient adiabatic liquid nitrogen storage jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144792.1A CN112113134A (en) | 2020-10-23 | 2020-10-23 | High-efficient adiabatic liquid nitrogen storage jar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112113134A true CN112113134A (en) | 2020-12-22 |
Family
ID=73794124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011144792.1A Pending CN112113134A (en) | 2020-10-23 | 2020-10-23 | High-efficient adiabatic liquid nitrogen storage jar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112113134A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6521077B1 (en) * | 1999-03-25 | 2003-02-18 | Lydall, Inc. | Method for insulating a cryogenic container |
| JP2010089809A (en) * | 2008-10-06 | 2010-04-22 | Hokuoo Pack:Kk | Paper-made container |
| CN106015921A (en) * | 2016-07-07 | 2016-10-12 | 张家港富瑞氢能装备有限公司 | Vertical container used for storing low-temperature liquid |
| CN107228274A (en) * | 2017-06-02 | 2017-10-03 | 浙江大学 | Fixed vacuum multilayer insulation high pressure liquid hydrogen storage tank |
| CN213479814U (en) * | 2020-10-23 | 2021-06-18 | 金西盟干细胞(天津)有限责任公司 | High-efficient adiabatic liquid nitrogen storage jar |
-
2020
- 2020-10-23 CN CN202011144792.1A patent/CN112113134A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6521077B1 (en) * | 1999-03-25 | 2003-02-18 | Lydall, Inc. | Method for insulating a cryogenic container |
| JP2010089809A (en) * | 2008-10-06 | 2010-04-22 | Hokuoo Pack:Kk | Paper-made container |
| CN106015921A (en) * | 2016-07-07 | 2016-10-12 | 张家港富瑞氢能装备有限公司 | Vertical container used for storing low-temperature liquid |
| CN107228274A (en) * | 2017-06-02 | 2017-10-03 | 浙江大学 | Fixed vacuum multilayer insulation high pressure liquid hydrogen storage tank |
| CN213479814U (en) * | 2020-10-23 | 2021-06-18 | 金西盟干细胞(天津)有限责任公司 | High-efficient adiabatic liquid nitrogen storage jar |
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