CN215489056U - Liquid nitrogen container with anti-overflow function - Google Patents
Liquid nitrogen container with anti-overflow function Download PDFInfo
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- CN215489056U CN215489056U CN202120718249.1U CN202120718249U CN215489056U CN 215489056 U CN215489056 U CN 215489056U CN 202120718249 U CN202120718249 U CN 202120718249U CN 215489056 U CN215489056 U CN 215489056U
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- liquid nitrogen
- pipe
- jar
- neck pipe
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Abstract
The utility model relates to a liquid nitrogen tank with an anti-overflow function, which comprises a tank body, wherein an inner container is arranged in the tank body, the upper end of the inner container is provided with a neck pipe communicated with a tank opening of the tank body, the inner container and the neck pipe are wrapped in a multilayer heat insulation body, the tank opening of the tank body is provided with an interlayer, an annular gas collection cavity wrapped in the multilayer heat insulation body is arranged in the interlayer, the inner wall of the tank opening is provided with gas suction holes communicated with the gas collection cavity at intervals along the circumferential direction, the gas collection cavity is provided with an exhaust pipe which penetrates through the side wall of the tank opening and is connected with an exhaust fan, an exhaust pipe of the exhaust fan penetrates through the tank body and is communicated with the lower part of the neck pipe, the tank opening is provided with a sealing cover, and the sealing cover is provided with a plug block which extends into the neck pipe and covers the port of the exhaust pipe. This liquid nitrogen container compact structure conveniently effectively reduces the condition that nitrogen gas spills over when the closing cap is opened.
Description
Technical Field
The utility model relates to a liquid nitrogen tank with an anti-overflow function.
Background
Liquid nitrogen is used as inert, colorless, odorless, non-corrosive, non-combustible and extremely low-temperature liquid, and is often used as a storage medium for biological materials such as stem cells, blood zones and the like. Liquid nitrogen is usually stored in a liquid nitrogen tank, and when the liquid nitrogen tank is used, when a sealing cover is opened and a lifting cylinder is taken out, part of nitrogen in the tank body overflows, so that liquid nitrogen loss and the like are caused. For this reason, a liquid nitrogen tank having an anti-overflow function is required.
Disclosure of Invention
The utility model aims to provide a liquid nitrogen tank with an anti-overflow function, which has a compact structure and is convenient and effective to reduce the overflow of nitrogen when a sealing cover is opened.
The technical scheme of the utility model is as follows: the utility model provides a liquid nitrogen container with anti-overflow goes out function, includes a jar body, the internal inner bag that is provided with of jar, the upper end of inner bag have with the communicating neck pipe of jar mouth of the jar body, inner bag and neck pipe parcel are in multilayer thermal insulation, the jar mouth of the jar body is provided with the intermediate layer, be provided with the annular gas collecting cavity of wrapping up in multilayer thermal insulation in the intermediate layer, the inner wall of jar mouth is provided with the suction hole that is linked together with the gas collecting cavity along the circumferencial direction interval, be provided with the exhaust tube that passes jar mouth lateral wall and be connected with the air exhauster on the gas collecting cavity, the outlet duct of air exhauster penetrates the jar body and is linked together with the neck pipe lower part, be provided with the closing cap on the jar mouth, be provided with the chock that stretches into the neck pipe and cover the outlet pipe port on the closing cap.
Furthermore, a plurality of layers of heat insulators are wrapped on the exhaust pipe and the air outlet pipe.
Furthermore, the outer wall of the tank body is provided with annular reinforcing convex ribs at intervals from top to bottom, and two sides of the upper part of the tank body are respectively provided with a lifting ring.
Further, the exhaust fan is a low temperature resistant exhaust fan.
Furthermore, be provided with on the stopper lid and be used for dodging carrying a barrel shadoof dodging the groove, the port of giving vent to anger of outlet duct staggers and dodges the groove and set up on the lateral wall of neck pipe lower part.
Compared with the prior art, the utility model has the following advantages: this liquid nitrogen container compact structure conveniently effectively reduces the condition that nitrogen gas spills over when the closing cap is opened, operation convenient to use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
in the figure: 10-tank 11-inner container 12-neck pipe 13-multilayer insulator 14-annular gas collection cavity 15-air suction hole 16-exhaust fan 17-air suction pipe 18-annular reinforcing rib 19-air outlet pipe 20-closing cap 21-plug 22-lifting ring 30-lifting cylinder 31-lifting rod.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Refer to FIGS. 1 and 2
A liquid nitrogen tank with an anti-overflow function comprises a tank body 10, an inner container 11 is arranged in the tank body, the upper end of the liner is provided with a neck pipe 12 communicated with the tank opening of the tank body, the liner and the neck pipe are wrapped in a multi-layer heat insulator 13, the tank mouth of the tank body is provided with an interlayer, an annular gas collection cavity 14 wrapped in the multi-layer heat insulator is arranged in the interlayer, the inner wall of the tank opening is provided with air suction holes 15 communicated with the air collection cavity at intervals along the circumferential direction, an exhaust pipe 17 which penetrates through the side wall of the tank opening and is connected with an exhaust fan 16 is arranged on the gas collection cavity, an air outlet pipe 19 of the exhaust fan penetrates into the tank body and is communicated with the lower part of the neck pipe, a sealing cover 20 is arranged on the tank opening, a plug block 21 which extends into the neck pipe and covers the port of the air outlet pipe is arranged on the sealing cover, when the sealing cover is not opened, the air outlet of the air outlet pipe is sealed by the plug block, so that nitrogen is prevented from leaking into the air extractor from the air outlet pipe; and after the closing cap was opened, the chock breaks away from the neck pipe, starts the air exhauster this moment, can be with spilling over the nitrogen gas suction to the neck pipe lower part of jar mouth to nitrogen gas spills over the condition when effectively reducing the closing cap and opening.
In this embodiment, in order to prevent the low temperature of liquid nitrogen to exhaust tube and outlet duct influence, exhaust tube and outlet duct are the tubular metal resonator respectively, and the multilayer insulator has all been wrapped up on exhaust tube and the outlet duct, prevents the nitrogen gas cooling.
In the embodiment, in order to ensure the strength of the tank body, annular reinforcing ribs 18 are arranged on the outer wall of the tank body at intervals from top to bottom; the two sides of the upper part of the tank body are respectively provided with a lifting ring 22 so as to move the tank body.
In this embodiment, receive microthermal influence when taking out the nitrogen gas that overflows in order to reduce the air exhauster, the air exhauster is low temperature resistant air exhauster. The plugs may be made of thermal insulation.
In this embodiment, in order to conveniently place the carrying rod 31 of the carrying cylinder 30 for low-temperature storage products such as stem cells, the plug cover is provided with an avoiding groove for avoiding the carrying rod of the carrying cylinder, so that the plug block is tightly attached to the carrying rod when being plugged, and nitrogen is prevented from overflowing. The air outlet port of the air outlet pipe is staggered to avoid the groove to be arranged on the side wall of the lower part of the neck pipe, so that the air outlet port can be blocked when the plug block extends into the neck pipe.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (5)
1. The utility model provides a liquid nitrogen container with anti-overflow goes out function, includes a jar body, the internal inner bag that is provided with of jar, the upper end of inner bag have with the communicating neck pipe of jar mouth of the jar body, inner bag and neck pipe parcel are in multilayer thermal insulation, its characterized in that, the jar mouth of the jar body is provided with the intermediate layer, be provided with the annular gas collecting cavity of wrapping up in multilayer thermal insulation in the intermediate layer, the inner wall of jar mouth is provided with the suction hole that is linked together with the gas collecting cavity along the circumferencial direction interval, be provided with the exhaust tube that passes jar mouthful lateral wall and be connected with the air exhauster on the gas collecting cavity, the outlet duct of air exhauster penetrates the jar body and is linked together with the neck pipe lower part, be provided with the closing cap on the jar mouth, be provided with on the closing cap and stretch into the neck pipe and cover the chock of outlet duct port.
2. The liquid nitrogen tank with the anti-overflow function as claimed in claim 1, wherein the gas exhaust pipe and the gas outlet pipe are wrapped with multiple layers of heat insulators.
3. The liquid nitrogen tank with the anti-overflow function as claimed in claim 1, wherein the outer wall of the tank body is provided with annular reinforcing ribs at intervals from top to bottom, and two sides of the upper part of the tank body are respectively provided with a lifting ring.
4. The liquid nitrogen tank with the anti-overflow function of claim 1, wherein the exhaust fan is a low temperature resistant exhaust fan.
5. The liquid nitrogen tank with the anti-overflow function according to claim 1, wherein the stopper cover is provided with an avoiding groove for avoiding the lifting rod of the lifting cylinder, and the air outlet port of the air outlet pipe is arranged on the side wall of the lower part of the neck pipe in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120718249.1U CN215489056U (en) | 2021-04-09 | 2021-04-09 | Liquid nitrogen container with anti-overflow function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120718249.1U CN215489056U (en) | 2021-04-09 | 2021-04-09 | Liquid nitrogen container with anti-overflow function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215489056U true CN215489056U (en) | 2022-01-11 |
Family
ID=79774066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120718249.1U Active CN215489056U (en) | 2021-04-09 | 2021-04-09 | Liquid nitrogen container with anti-overflow function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215489056U (en) |
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2021
- 2021-04-09 CN CN202120718249.1U patent/CN215489056U/en active Active
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