CN219673946U - Liquid nitrogen biological container device for reducing temperature difference in cylinder - Google Patents
Liquid nitrogen biological container device for reducing temperature difference in cylinder Download PDFInfo
- Publication number
- CN219673946U CN219673946U CN202320318225.6U CN202320318225U CN219673946U CN 219673946 U CN219673946 U CN 219673946U CN 202320318225 U CN202320318225 U CN 202320318225U CN 219673946 U CN219673946 U CN 219673946U
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- tank body
- liquid nitrogen
- pipe
- inner tank
- travel
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 239000007788 liquid Substances 0.000 title claims abstract description 81
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 55
- 238000009413 insulation Methods 0.000 claims abstract description 18
- 210000001503 joint Anatomy 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 28
- 239000011229 interlayer Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 239000012472 biological sample Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000004700 fetal blood Anatomy 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000000130 stem cell Anatomy 0.000 description 1
Landscapes
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The utility model discloses a liquid nitrogen biological container device for reducing temperature difference in a cylinder, which comprises an outer tank body; the inner tank body is internally provided with a disturbance mechanism which extends out of the outer tank body and is used for disturbing liquid nitrogen in the inner tank body; the disturbance mechanism comprises a travel pipe which is arranged at the top of the inner tank body and extends into the bottom of the inner tank body, a heat insulation connecting pipe which is in butt joint with the travel pipe is arranged on the outer tank body, and a piston block which moves along the travel pipe is arranged in the travel pipe; the outer tank body is provided with a driving mechanism for driving the piston block to move along the travel tube; according to the utility model, the piston block is driven by the driving mechanism to adsorb liquid nitrogen at the bottom layer of the inner tank body along the travel tube, and then the piston block is pushed forward to discharge the liquid nitrogen at the bottom layer so as to discharge the liquid nitrogen from the liquid outlet tube, so that the mixing of the liquid nitrogen at the bottom layer and the liquid nitrogen at the upper layer is completed, the uniform temperature distribution of the liquid nitrogen at the upper layer and the liquid nitrogen at the lower layer of the inner tank body is ensured, and the temperature difference between the upper layer and the lower layer of the inner tank body is reduced, so that the biological sample is refrigerated well.
Description
Technical Field
The utility model relates to the technical field related to liquid nitrogen biological containers, in particular to a liquid nitrogen biological container device for reducing temperature difference in a cylinder.
Background
The liquid nitrogen tank is widely applied to hospitals and laboratories and is mainly divided into liquid phase storage and gas phase storage. The liquid nitrogen tank is used for freezing and storing biological materials such as cells, tissues and the like. At present, in the biological research field and the clinical treatment field, the gas-phase liquid nitrogen biological storage tank can ensure long-term stable storage of cells, can avoid multi-sample biological pollution caused by liquid phase, and is particularly widely applied to umbilical cord blood banks, various stem cell banks and biological tissue sample banks.
When the top temperature of the inner cavity is minus 183-186 ℃ and the bottom temperature is minus 193-196 ℃, the temperature of the top of the inner cavity of the tank body is about minus 170 ℃ within 48 hours after the tank cover is opened, and the temperature rises to minus 135 ℃ on 13 days after the supply of liquid nitrogen is cut off. Such frequent fluctuations and excessive temperature differences are the main factors responsible for the non-uniform and unstable quality of the stored samples. The existing liquid nitrogen biological container device for reducing the temperature difference in the cylinder is characterized in that the capillary tube is used for conveying liquid nitrogen at the lower part upwards, but the efficiency is low, and the time consumption is long.
Disclosure of Invention
The utility model provides a liquid nitrogen biological container device for reducing temperature difference in a cylinder, which aims to solve the defects that the prior liquid nitrogen biological container device for reducing temperature difference in the cylinder is low in efficiency and long in time because a capillary tube is used for conveying liquid nitrogen at the lower part upwards.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model relates to a liquid nitrogen biological container device for reducing temperature difference in a cylinder, which comprises an outer tank body, wherein an inner tank body is arranged in the outer tank body, a vacuum interlayer is arranged between the outer tank body and the inner tank body, an access opening is arranged on the outer tank body, and an access opening cover plate is arranged on the access opening; the inner tank body is internally provided with a disturbance mechanism which extends out of the outer tank body and is used for disturbing liquid nitrogen in the inner tank body; the disturbance mechanism comprises a travel pipe which is arranged at the top of the inner tank body and extends into the bottom of the inner tank body, a heat insulation connecting pipe which is in butt joint with the travel pipe is arranged on the outer tank body, and a piston block which moves along the travel pipe is arranged in the travel pipe; the outer tank body is provided with a driving mechanism for driving the piston block to move along the travel tube.
As a preferable technical scheme of the utility model, the bottom of the travel tube is provided with a main tube, the main tube is provided with a liquid suction tube positioned at the bottom of the inner tank body, the liquid suction tube is provided with a liquid suction one-way valve, the main tube is also provided with a liquid outlet tube extending to the upper end of the inner tank body, and the liquid outlet tube is provided with a liquid outlet one-way valve.
As a preferable technical scheme of the utility model, the driving mechanism is connected with the heat-insulating connecting rod of the piston block, the end part of the heat-insulating connecting rod penetrates out of the heat-insulating connecting pipe, and the top of the outer tank body is provided with an electric telescopic rod connected with the heat-insulating connecting rod.
As a preferable technical scheme of the utility model, a sealing layer is arranged between the piston block and the inner wall of the stroke tube.
As a preferable technical scheme of the utility model, a heat insulation seat is arranged between the outer tank body and the inner tank body.
The beneficial effects of the utility model are as follows:
the liquid nitrogen biological container device for reducing the temperature difference in the cylinder comprises a container main body formed by an inner container body and an outer container body, and a vacuum interlayer is formed between the inner container body and the outer container body for heat insulation; the piston block is driven by the driving mechanism to adsorb liquid nitrogen at the bottom layer of the inner tank body along the travel tube, and then the piston block is pushed forward to discharge the liquid nitrogen at the bottom layer through the liquid outlet tube, so that the mixing of the liquid nitrogen at the bottom layer and the liquid nitrogen at the upper layer is completed, the uniform temperature distribution of the liquid nitrogen at the upper layer and the liquid nitrogen at the lower layer of the inner tank body is ensured, the temperature difference between the upper layer and the lower layer of the inner tank body is reduced, and a good refrigerating effect is achieved on biological samples.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of a liquid nitrogen biocontainer apparatus for reducing temperature differentials within a barrel in accordance with the present utility model;
FIG. 2 is a schematic view of the structure of a stroke tube of a liquid nitrogen biocontainer device for reducing temperature differences in a barrel according to the present utility model;
FIG. 3 is a schematic view of the structure of the liquid outlet pipe of a liquid nitrogen biocontainer device for reducing temperature differences in a barrel according to the present utility model;
FIG. 4 is a schematic diagram of the drive mechanism of a liquid nitrogen biocontainer device of the present utility model for reducing temperature differentials within the barrel.
In the figure: 1. an outer can; 2. an inner tank; 3. vacuum interlayer; 4. an access port; 5. an access port cover plate; 6. a disturbance mechanism; 7. a travel tube; 8. a heat-insulating connecting pipe; 9. a piston block; 10. a driving mechanism; 11. a main pipe; 12. a pipette; 13. a liquid suction one-way valve; 14. a liquid outlet one-way valve; 15. a sealing layer; 16. a heat insulation seat; 17. a thermally insulated connecting rod; 18. an electric telescopic rod; 19. and a liquid outlet pipe.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
Examples: as shown in fig. 1, 2, 3 and 4, the liquid nitrogen biological container device for reducing temperature difference in a barrel comprises an outer container body 1, wherein an inner container body 2 is arranged in the outer container body 1, a vacuum interlayer 3 is arranged between the outer container body 1 and the inner container body 2, an access port 4 is arranged on the outer container body 1, and an access port cover plate 5 is arranged on the access port 4; the liquid nitrogen stirring device is characterized in that a stirring mechanism 6 which stretches out of the outer tank 1 and is used for stirring liquid nitrogen in the inner tank 2 is arranged in the inner tank 2; the disturbance mechanism 6 comprises a travel pipe 7 arranged at the top of the inner tank 2 and extending into the bottom of the inner tank 2, the outer tank 1 is provided with a heat insulation connecting pipe 8 in butt joint with the travel pipe 7, and a piston block 9 moving along the travel pipe 7 is arranged in the travel pipe 7; the outer tank body is provided with a driving mechanism 10 for driving the piston block 9 to move along the travel tube. Wherein the inner tank body 2 and the outer tank body 1 form a container main body, and a vacuum interlayer 3 is formed between the inner tank body 2 and the outer tank body 1 for heat insulation; the piston block 9 is driven by the driving mechanism 10 to adsorb liquid nitrogen at the bottom layer of the inner tank body 2 along the travel tube 7, and then the piston block 9 is pushed forward to discharge the liquid nitrogen at the bottom layer through the liquid outlet tube, so that the mixing of the liquid nitrogen at the bottom layer and the liquid nitrogen at the upper layer is completed, the uniform temperature distribution of the liquid nitrogen at the upper layer and the lower layer of the inner tank body 2 is ensured, the temperature difference between the upper layer and the lower layer of the inner tank body 2 is reduced, and a better refrigerating effect is achieved on biological samples.
The bottom of the travel tube 7 is provided with a main tube 11, the main tube 11 is provided with a liquid suction tube 12 positioned at the bottom of the inner tank body 2, the liquid suction tube 12 is provided with a liquid suction one-way valve 13, the main tube 11 is also provided with a liquid outlet tube 19 extending to the upper end of the inner tank body 2, and the liquid outlet tube 19 is provided with a liquid outlet one-way valve 14.
The driving mechanism 10 is connected with the heat insulation connecting rod 17 of the piston block 9, the end part of the heat insulation connecting rod 17 penetrates out of the heat insulation connecting pipe 8, and an electric telescopic rod 18 connected with the heat insulation connecting rod 17 is arranged at the top of the outer tank body 1.
Wherein, the piston block 9 is provided with a sealing layer 15 between the inner wall of the stroke tube 7.
A heat insulation seat 16 is arranged between the outer tank 1 and the inner tank 2.
Working principle: wherein the inner tank body 2 and the outer tank body 1 form a container main body, and a vacuum interlayer 3 is formed between the inner tank body 2 and the outer tank body 1 for heat insulation; the piston block 9 is driven by the driving mechanism 10 to adsorb liquid nitrogen at the bottom layer of the inner tank body 2 along the travel tube 7, and then the piston block 9 is pushed forward to discharge the liquid nitrogen at the bottom layer through the liquid outlet tube, so that the mixing of the liquid nitrogen at the bottom layer and the liquid nitrogen at the upper layer is completed, the uniform temperature distribution of the liquid nitrogen at the upper layer and the lower layer of the inner tank body 2 is ensured, the temperature difference between the upper layer and the lower layer of the inner tank body 2 is reduced, and a better refrigerating effect is achieved on biological samples.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (5)
1. The liquid nitrogen biological container device for reducing temperature difference in a cylinder comprises an outer container body (1), wherein an inner container body (2) is arranged in the outer container body (1), a vacuum interlayer (3) is arranged between the outer container body (1) and the inner container body (2), an access opening (4) is formed in the outer container body (1), and an access opening cover plate (5) is arranged on the access opening (4); the liquid nitrogen stirring device is characterized in that a stirring mechanism (6) which stretches out of the outer tank body (1) and is used for stirring liquid nitrogen in the inner tank body (2) is arranged in the inner tank body (2); the disturbance mechanism (6) comprises a travel pipe (7) arranged at the top of the inner tank body (2) and extending into the bottom of the inner tank body (2), a heat-insulating connecting pipe (8) in butt joint with the travel pipe (7) is arranged on the outer tank body (1), and a piston block (9) moving along the travel pipe (7) is arranged in the travel pipe (7); the outer tank body is provided with a driving mechanism (10) for driving the piston block (9) to move along the travel tube.
2. The liquid nitrogen biological container device for reducing temperature difference in the cylinder according to claim 1, wherein a main pipe (11) is arranged at the bottom of the travel pipe (7), a liquid suction pipe (12) positioned at the bottom of the inner tank body (2) is arranged on the main pipe (11), a liquid suction one-way valve (13) is arranged on the liquid suction pipe (12), a liquid outlet pipe (19) extending to the upper end of the inner tank body (2) is further arranged on the main pipe (11), and a liquid outlet one-way valve (14) is arranged on the liquid outlet pipe (19).
3. A liquid nitrogen biocontainer device for reducing temperature differences in barrels according to claim 1, characterized by a heat insulation connecting rod (17) connected to the driving mechanism (10) and the piston block (9), the end of the heat insulation connecting rod (17) is penetrated out from the heat insulation connecting pipe (8), and the top of the outer tank (1) is provided with an electric telescopic rod (18) connected to the heat insulation connecting rod (17).
4. A liquid nitrogen biocontainer device for reducing temperature differences in barrels according to claim 1, characterized in that said piston block (9) is provided with a sealing layer (15) between the inner wall of the stroking pipe (7).
5. A liquid nitrogen biocontainer device for reducing temperature differential in a barrel according to claim 1, characterized in that a thermal insulation seat (16) is provided between said outer tank (1) and inner tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320318225.6U CN219673946U (en) | 2023-02-27 | 2023-02-27 | Liquid nitrogen biological container device for reducing temperature difference in cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320318225.6U CN219673946U (en) | 2023-02-27 | 2023-02-27 | Liquid nitrogen biological container device for reducing temperature difference in cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219673946U true CN219673946U (en) | 2023-09-12 |
Family
ID=87919213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320318225.6U Active CN219673946U (en) | 2023-02-27 | 2023-02-27 | Liquid nitrogen biological container device for reducing temperature difference in cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219673946U (en) |
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2023
- 2023-02-27 CN CN202320318225.6U patent/CN219673946U/en active Active
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