CN201582554U - Gas cryogenic freezing device - Google Patents
Gas cryogenic freezing device Download PDFInfo
- Publication number
- CN201582554U CN201582554U CN2009202490029U CN200920249002U CN201582554U CN 201582554 U CN201582554 U CN 201582554U CN 2009202490029 U CN2009202490029 U CN 2009202490029U CN 200920249002 U CN200920249002 U CN 200920249002U CN 201582554 U CN201582554 U CN 201582554U
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- gas
- capping
- low temperature
- cell body
- fixed
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Abstract
The utility model discloses a gas cryogenic freezing device with simple structure and easy manufacture, which can recycle the volatile frozen medium to reduce resource waste and be beneficial for environmental protection, and can complement low-temperature liquid medium at any time to lead a gas cylinder to evenly endure cold. The gas cryogenic freezing device comprises a tank body (1); a sealing cover (2) is arranged on the tank body and is provided with a gas-cylinder fixing hole (3) and a movable cover (4) which is matched with the gas-cylinder fixing hole (3), and a gas collecting pipe (5) which is communicated with an inner cavity of the tank body (1) is fixed on the sealing cover (2) and is connected with a gas storage device (7) through a gas recovery valve (6); a low-temperature liquid medium input pipe (8) is fixed on the sealing cover (2) and passes through the sealing cover (2) to be placed at the lower end of the inner cavity of the tank body (1), and a flow rate control valve (9) is arranged on the frozen medium input pipe (8).
Description
Technical field:
The utility model relates to a kind of gas low temperature refrigerating plant, especially a kind of simple in structure, make easily, can collect the refrigerant of volatilization and utilize again, can supply the low temperature liquid medium simultaneously at any time and make the gas cylinder uniform gas low temperature refrigerating plant of enduring cold to reduce the wasting of resources, to be beneficial to environmental protection.
Background technique:
Some gas directly charges into gas cylinder (steel cylinder, aluminum alloy bottle etc.) with gaseous form when experiment or small-scale production, the pressure in the gas cylinder progressively increases along with charging into of gas, causes the pressure of whole production system to rise.Therefore, terminal generally meeting application of cold temperature freezing tank in production system, in groove, charge into low temperature liquid materials such as liquid nitrogen or liquid argon and gas cylinder is immersed in the low temperature liquid material, absorb a large amount of heats by liquid nitrogen (argon) volatilization, thereby make the gas that flow in the bottle be frozen into liquid condition, equilibrium keep-ups pressure.For example, in nitric oxide gas (critical temperature is-92.9 ℃) production process, the rough nitric oxide gas that is produced by natrium nitrosum and dilute sulfuric acid flows through behind the single step purification, generate high-purity gas, this gas is passed in the 8L aluminium alloy gas cylinder that is immersed in the liquid nitrogen cryogenics freezing tank, nitrous oxide in the gas cylinder then changes liquid condition under the cold service of the outside liquid nitrogen of gas cylinder, thereby makes the pressure of whole process of production maintain 2～3 barometric pressure, guarantees production safety.
This type of cryogenic freezing groove of present domestic use all is uncovered Dewar jar, liquid nitrogen is directly poured in the freezing tank from liquid nitrogen container, and gas cylinder is tilting in groove, has many drawbacks: because this equipment is uncovered form, and liquid nitrogen is the highly volatile material, liquid nitrogen can be vaporized in freezing gas cylinder, becomes nitrogen, directly is dispersed in the air, cause the wasting of resources, and in airtight space, the air in the nitrogen that distributes can increase among a small circle contains nitrogen concentration, and human body is had certain asphyxiation hazard.In addition, liquid nitrogen contacts in a large number with air when freezing, causes the part loss of refrigeration capacity, can not reach best cooling effect.
Summary of the invention:
The utility model is in order to solve the above-mentioned technical problem of existing in prior technology, a kind of simple in structure, processing ease is provided, can collect the refrigerant of volatilization and utilize again, can supply the low temperature liquid medium simultaneously at any time and make the gas cylinder uniform gas low temperature refrigerating plant of enduring cold to reduce the wasting of resources, to be beneficial to environmental protection.
Technical solution of the present utility model is: a kind of gas low temperature refrigerating plant, cell body 1 is arranged, and it is characterized in that: on the described cell body 1 capping 2 is arranged, the removable cover 4 that gas cylinder fixed hole 3 is arranged in the capping 2 and be complementary with gas cylinder fixed hole 3; Also be fixed with the gas collecting tube 5 that communicates with cell body 1 inner chamber in capping 2, gas collecting tube 5 reclaims valve 6 by gas and joins with gas storage device 7; Low temperature liquid medium supplying tube 8 is fixed in the capping 2 and passes capping 2 and places cell body 1 inner chamber lower end, is provided with flow control valve 9 on refrigerant supplying tube 8.
Described cell body 1 is the middle double layer construction of vacuum that is.
In capping 2, be fixed with safety valve 10.
The utility model is simple in structure, making is easy, and the capping on its top can reduce low temperature liquid medium loss of refrigeration capacity and volatile quantity, is beneficial to environmental protection, ensures safety; Set gas collecting tube and gas storage device can be collected the nitrogen of volatilization again and utilize, and reduce the wasting of resources; Set low temperature liquid medium supplying tube can guarantee to supply the low temperature liquid medium that reduces in the cryogenic freezing device at any time, and gas cylinder is fixed in the device, endures cold evenly, has cooling effect preferably.
Description of drawings:
Fig. 1 is the utility model embodiment's a structural representation.
Fig. 2 is the utility model embodiment's a user mode schematic representation.
Embodiment:
Below in conjunction with description of drawings embodiment of the present utility model.As shown in Figure 1: the cell body 1 that has stainless steel to make, on the described cell body 1 capping 2 is arranged, gas cylinder fixed hole 3 that coincide with the gas cylinder outside dimension and the removable cover 4 that is complementary with gas cylinder fixed hole 3 are arranged in the capping 2; Also be fixed with the gas collecting tube 5 that communicates with cell body 1 inner chamber in capping 2, gas collecting tube 5 reclaims valve 6 by gas and joins with gas storage device 7 (bottle, jar etc.); Low temperature liquid medium supplying tube 8 is fixed in the capping 2 and passes capping 2 and places cell body 1 inner chamber lower end, is provided with flow control valve 9 on refrigerant supplying tube 8.For further heat insulation, in the middle of can be, cell body 1 is the double layer construction of vacuum; Excessive for cell body 1 internal pressure that prevents to seal, ensure safety, in capping 2, be fixed with safety valve 10.
Working procedure is as shown in Figure 2: before process gas, open gas and reclaim valve 6, open removable cover 4,8L aluminium alloy gas cylinder 11 is fixing and place in the cell body 1 by gas cylinder fixed hole 3, turn-on flow rate control valve 9, low temperature liquid medium (liquid nitrogen, liquid argon etc.) is injected in the cell body 1 by low temperature liquid medium supplying tube 8, and the capacity of low temperature liquid medium highly is advisable to reach 2/3 of cell body 1, closes flow control valve 9; Gas cylinder is connected with production system, and the gas that reaction generates flow in the aluminum alloy bottle at last, is frozen into liquid condition by the low temperature liquid medium then, keeps low pressure in the bottle.Meanwhile, low temperature liquid medium gas of being volatilized in the process of cooling gas cylinder will upwards enter in the gas storage device 7 along gas collecting tube 5.
Claims (3)
1. a gas low temperature refrigerating plant has cell body (1), it is characterized in that: capping (2) is arranged, the removable cover (4) that gas cylinder fixed hole (3) is arranged in the capping (2) and be complementary with gas cylinder fixed hole (3) on the described cell body (1); Also be fixed with the gas collecting tube (5) that communicates with cell body (1) inner chamber in capping (2), gas collecting tube (5) reclaims valve (6) by gas and joins with gas storage device (7); Low temperature liquid medium supplying tube (8) is fixed in the capping (2) and passes capping (2) and places cell body (1) inner chamber lower end, is provided with flow control valve (9) on refrigerant supplying tube (8).
2. gas low temperature refrigerating plant according to claim 1 is characterized in that: described cell body (1) is the double layer construction of vacuum for the centre.
3. gas low temperature refrigerating plant according to claim 1 and 2 is characterized in that: be fixed with safety valve (10) in capping (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202490029U CN201582554U (en) | 2009-11-30 | 2009-11-30 | Gas cryogenic freezing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202490029U CN201582554U (en) | 2009-11-30 | 2009-11-30 | Gas cryogenic freezing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201582554U true CN201582554U (en) | 2010-09-15 |
Family
ID=42724553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202490029U Expired - Fee Related CN201582554U (en) | 2009-11-30 | 2009-11-30 | Gas cryogenic freezing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201582554U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441282A (en) * | 2020-11-02 | 2022-05-06 | 中国石油化工股份有限公司 | Concentration and enrichment device and method for rare gas in soil gas and application |
-
2009
- 2009-11-30 CN CN2009202490029U patent/CN201582554U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441282A (en) * | 2020-11-02 | 2022-05-06 | 中国石油化工股份有限公司 | Concentration and enrichment device and method for rare gas in soil gas and application |
| CN114441282B (en) * | 2020-11-02 | 2024-05-07 | 中国石油化工股份有限公司 | Concentration and enrichment device for rare gas in soil gas, concentration and enrichment method and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20121130 |