CN203428912U - Helium recovery device - Google Patents
Helium recovery device Download PDFInfo
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- CN203428912U CN203428912U CN201320500274.8U CN201320500274U CN203428912U CN 203428912 U CN203428912 U CN 203428912U CN 201320500274 U CN201320500274 U CN 201320500274U CN 203428912 U CN203428912 U CN 203428912U
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- helium
- recovery
- helium recovery
- air bag
- pressure
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Abstract
The utility model relates to a helium recovery device. The helium recovery device comprises a helium recovery compressor (30), a first helium recovery air bag (2) and a high-pressure helium steel cylinder group (31), wherein seven movable Dewar flasks are sequentially in pipeline connection with the first helium recovery air bag (2), the helium recovery compressor (30) and the high-pressure helium steel cylinder group (31) through a helium recovery main inlet (36); the helium recovery device is characterized in that a helium buffer tank (1) is connected with a pipeline between the helium recovery main inlet (36) and the first helium recovery air bag (2) in parallel, the helium buffer tank (1) is sequentially connected with a second helium recovery air bag (3) and the helium recovery compressor (30) in series through a vacuum pump (6) and a helium circulating pump (7), all equipment is connected with one another through nitrogen pipelines, and the helium buffer tank (1) is provided with a vacuum suction port (4), a helium purity analysis suction port (5), a pressure measuring point and a temperature measuring point. The helium recovery device can be used for adjusting the pressure of a helium recovery system, analyzing the concentration of recovered helium and timely treating the helium.
Description
Technical field
The utility model relates to a kind of helium recovery device with pressure adjusting and purity check in metering very low temperature scientific experiment.
Background technology
Because helium is that a kind of strategic resource and domestic helium output are lower, so very low temperature scientific research field carries out helium recovery and seems particularly necessary at home.At present, helium recovery device is comparatively general in the application of scientific research field, but all adopt helium recovery compressor, the equipment such as air bag and high-pressure cylinder group that reclaim form recovery system, the low pressure air suction end of helium compressor and recovery air bag and helium recovery end are connected in series, the pressure of helium air return system is affected by the factors such as the return-air amount of different user and helium recovery start/stop of compressor, more difficult stable, to end, need the experiment of liquid helium transmission to impact, and in recovery system without the monitoring component of helium purity, if helium recovery system enters foreign gas, may cause liquid helium Dewar ice stifled, experimenter and valuable experimental installation are caused serious harm, a large amount of foreign gas enters helium liquid helium device, also will cause helium liquefying plant to work.
Summary of the invention
The deficiency that can not regulate helium recovery system pressure and analyze helium purity in order to overcome existing helium recovery system, the utility model provides a kind of helium recovery device with pressure adjusting and purity check, this device not only regulates helium recovery system pressure, and can analyze the purity of helium recovery and process in time.
The utility model solves the technical scheme that its technical problem adopts: helium recovery device, comprise helium recovery compressor (30), the first helium recovery air bag (2) and high-pressure helium steel cylinder group (31), wherein seven mobile Dewars all by helium recovery general import (36) successively with the first helium recovery air bag (2), helium recovery compressor (30), high-pressure helium steel cylinder group (31) pipeline connects, helium surge tank in parallel (1) on the pipeline between helium recovery general import (36) and the first helium recovery air bag (2), connect again the second helium recovery air bag (3) being connected with helium recovery compressor (30) pipeline of helium surge tank (1), on helium surge tank (1), be provided with vacuum pumping port (4), helium purity check is taken out mouthful (5), pressure-measuring-point and temperature point.
In addition, also comprise PLC controller (29), vacuum pump (6), circulated helium pump (7), helium purity check instrument (39), helium purity check instrument (39) is taken out mouthful (5) by helium purity check and is connected helium surge tank (1), and purity signal is transferred to PLC controller (29), the import of vacuum pump (6) is connected with the vacuum pumping port (4) of helium surge tank (1) by connecting tube, the outlet of vacuum pump (6) is connected with the second helium recovery air bag (3) import, the import of circulated helium pump (7) is connected with the import and export of vacuum pump (6) respectively with outlet, in electrical control, change-over switch is set cashier's office in a shop, during vacuum pump (6) work, the standby standby of recycle pump (7), during recycle pump (7) work, the standby standby of vacuum pump (6).The volume of helium surge tank (1) is 1m
3.
Helium recovery pipeline is provided with seven magnetic valves, that is: the helium exit end at the first helium recovery air bag (air bag in original system) is provided with the first magnetic valve (8), helium entrance end at the first helium recovery air bag (air bag in original system) is provided with the 6th magnetic valve (13), entrance end and exit end at helium surge tank (1) are respectively equipped with the second magnetic valve (9) and the 3rd magnetic valve (10), when helium purity is when setting purity, can send signal by helium purity check instrument (39), close the first magnetic valve (8) and the second magnetic valve (9) simultaneously, send guard signal simultaneously, after technician processes, the normal operation of recovery system again.The first magnetic valve (8), the second magnetic valve (9), the 3rd magnetic valve (10), the 6th magnetic valve (13) are normally open solenoid valve, and energising is closed; Entrance end and exit end at the second helium recovery air bag (3) are respectively equipped with the 6th magnetic valve (11) and the 7th magnetic valve (12), it is normally closed solenoid valve, energising is opened, on the pipeline that connects the first helium recovery air bag (2) and the second helium recovery air bag (3), be provided with the 7th magnetic valve (14), can control by PLC controller (29), when system helium is more, conducting is simultaneously used two air bags to reclaim helium, this magnetic valve is normally closed solenoid valve, and energising is opened.
The beneficial effects of the utility model are, can in test helium recovery system helium purity, regulate the pressure of helium recovery system, and the various pressure of acquisition and processing and purity signal, simple in structure.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is systematic schematic diagram of the present utility model.
Fig. 2 is the sectional structural map of helium monitoring device.
In Fig. 1, 1. helium surge tank, 2. the first helium recovery air bag, 3. the second helium recovery air bag, 4. vacuum pumping port, 5. helium purity check is taken out mouth, 6. vacuum pump, 7. circulated helium pump, 8. the first magnetic valve, 9. the second magnetic valve, 10. the 3rd magnetic valve, 11. the 4th magnetic valves, 12. the 5th magnetic valves, 13. the 6th magnetic valves, 14. the 7th magnetic valves, 15. first pressure transmitters, 16. second pressure transmitters, 17. the 3rd pressure transmitters, 18. the 4th pressure transmitters, 19. the 5th pressure transmitters, 20. the 6th pressure transmitters, 21. the 7th pressure transmitters, 22. first move Dewar, 23. second move Dewar, 24. the 3rd move Dewar, 25. the 4th move Dewar, 26. the 5th move Dewar, 27. the 6th move Dewar, 28. the 7th move Dewar, 29.PLC controller, 30. helium recovery compressors, 31. high-pressure helium steel cylinder groups, measuring point wherein
represent to be with manometric helium purity and pressure-measuring-point, Ce Dian represents helium purity measuring point, | represent helium pressure measuring point.
In Fig. 2,1. helium surge tank, 5. helium purity is taken out mouth, 6. vacuum pump, 11. the 4th magnetic valves, 32. vacuum meters, 33. sewage draining exits, 34. evacuation ports, 35. the 8th pressure transmitters, 36. helium recovery general imports, 37. helium return-airs enter the first air bag import, 38. helium return-airs enter the second air bag import, 39. helium purity check instrument
Embodiment
Helium recovery device, comprise helium recovery compressor (30), the first helium recovery air bag (2) and high-pressure helium steel cylinder group (31), wherein seven mobile Dewars are all connected with the first helium recovery air bag (2), helium recovery compressor (30), high-pressure helium steel cylinder group (31) pipeline successively by helium recovery general import, a helium surge tank (1) in parallel on the pipeline between helium recovery general import and the first helium recovery air bag (2), volume is 1m
3helium surge tank (1) the second helium recovery air bag (3) of connecting is again connected with helium recovery compressor (30) pipeline, is provided with vacuum pumping port (4), helium purity check is taken out mouthful (5), pressure-measuring-point and temperature point on helium surge tank (1).
Helium recovery device also comprises PLC controller (29), vacuum pump (6), circulated helium pump (7), helium purity check instrument, the import of its intermediate pump (6) is connected with the vacuum pumping port (4) of helium surge tank (1) by connecting tube, the manually-operated gate of a DN25 is set on this connecting tube, circulated helium pump (7) and vacuum pump (6) use in parallel, when the pressure of helium recovery system is during higher than set(ting)value, with vacuum pump (6), by vacuum pumping port (4), the helium in helium surge tank (1) is pumped to one independently in the second helium recovery air bag (3), by the force value in setting helium surge tank (1), reach the start and stop of vacuum pump (6), during purity that the helium purity in helium surge tank (1) is set lower than helium purity check instrument (39), can send signal by helium purity check instrument (39), by controlling the second electromagnetic valve (9), turn-off total helium recovery pipeline, send guard signal simultaneously, after technician processes, the more normal operation of recovery system.
Helium recovery pipeline is provided with seven magnetic valves, that is: the helium exit end at the first helium recovery air bag (air bag in original system) is provided with the first magnetic valve (8), helium entrance end at the first helium recovery air bag (air bag in original system) is provided with the 6th magnetic valve (13), entrance end and exit end at helium surge tank (1) are respectively equipped with the second magnetic valve (9) and the 3rd magnetic valve (10), when helium purity is when setting purity, can send signal by helium purity check instrument (39), close the first magnetic valve (8) and the second magnetic valve (9) simultaneously, send guard signal simultaneously, after technician processes, the normal operation of recovery system again.The first magnetic valve (8), the second magnetic valve (9), the 3rd magnetic valve (10), the 6th magnetic valve (13) are normally open solenoid valve, and energising is closed; Entrance end and exit end at the second helium recovery air bag (3) are respectively equipped with the 6th magnetic valve (11) and the 7th magnetic valve (12), it is normally closed solenoid valve, energising is opened, on the pipeline that connects the first helium recovery air bag (2) and the second helium recovery air bag (3), be provided with the 7th magnetic valve (14), can control by PLC controller (29), when system helium is more, conducting is simultaneously used two air bags to reclaim helium, this magnetic valve is normally closed solenoid valve, and energising is opened.
In Fig. 1, the first pressure transmitter (15), the second pressure transmitter (16), the 3rd pressure transmitter (17), the 4th pressure transmitter (18), the 5th pressure transmitter (19), the 6th pressure transmitter (20) and the 7th pressure transmitter (21) lay respectively at the Qi Ge recovery channel ingress of helium recovery end, corresponding successively with seven pressure transmitters is first to move Dewar (22), second moves Dewar (23), the 3rd moves Dewar (24), the 4th moves Dewar (25), the 5th moves Dewar (26), the 6th moves Dewar (27) and the 7th moves Dewar (28), pressure transmitter is measured the pressure of the mobile Dewar outlet connecting separately, if close plural mobile liquid helium Dewar transmits in the process of liquid helium at the same time, because the ratio of expansion that evaporates into helium of liquid helium is very large (at 20 ℃, 1 standard atmosphere is depressed, liquid helium: helium is 1:700), can cause the pressure of helium air return system to increase, by newly-increased the second helium recovery air bag (3) and the first helium recovery air bag (2) parallel connection, when cell pressure is greater than set(ting)value (1.05MPa), Controlling System is sent signal, starting circulated helium pump (7) drains into the helium in helium surge tank (1) in the second helium recovery air bag (3), when in system, helium pressure is lower than set(ting)value (0.95MPa), circulated helium pump (7) quits work.
In embodiment illustrated in fig. 2, helium purity check instrument (39) is a kind of heat-conducted helium purity check instrument, can detect according to the variation of reclaiming helium thermal conductivity in helium the purity of helium, and can outputting standard voltage or current signal to PLC controller (29), by controller, controlled the keying of magnetic valve; Vacuum pump (6) is selected the oil-sealed rotary pump of the precious brand of Lay, helium process general import inflow helium surge tank (1) when the gasification of helium return-air end, when the purity that reclaims helium is during higher than set(ting)value (>95%), this device is only a snubber, helium flow through after, directly enter the first air bag (2); When the purity that reclaims helium, lower than set(ting)value, (≤95% time, helium purity is taken out mouthful (5) and is located detecting head and send signal, and Direct Action Type gas solenoid valve (9), (10) are closed, and cut off total helium return-air; From the monitoring of helium purity, read helium purity, and manually opened vacuum pump, the helium that purity is lower enters atmosphere.Circulated helium pump (7) and vacuum pump (6) are in parallel to be used, pressure that can regulation system.
Claims (3)
1. a helium recovery device, comprise helium recovery compressor (30), the first helium recovery air bag (2) and high-pressure helium steel cylinder group (31), wherein seven mobile Dewars all by helium recovery general import (36) successively with the first helium recovery air bag (2), helium recovery compressor (30), high-pressure helium steel cylinder group (31) pipeline connects, it is characterized in that, helium surge tank in parallel (1) on the pipeline between helium recovery general import (36) and the first helium recovery air bag (2), connect again the second helium recovery air bag (3) being connected with helium recovery compressor (30) pipeline of helium surge tank (1), on helium surge tank (1), be provided with vacuum pumping port (4), helium purity check is taken out mouthful (5), pressure-measuring-point and temperature point.
2. helium recovery device according to claim 1, it is characterized in that, also comprise PLC controller (29), vacuum pump (6), circulated helium pump (7), helium purity check instrument (39), helium purity check instrument (39) is taken out mouthful (5) by helium purity check and is connected helium surge tank (1), and purity signal is transferred to PLC controller (29), the import of vacuum pump (6) is connected with the vacuum pumping port (4) of helium surge tank (1) by connecting tube, the outlet of vacuum pump (6) is connected with the second helium recovery air bag (3) import, the import of circulated helium pump (7) is connected with the import and export of vacuum pump (6) respectively with outlet.
3. helium recovery device according to claim 1, is characterized in that, the volume of helium surge tank (1) is 1m
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500274.8U CN203428912U (en) | 2013-08-16 | 2013-08-16 | Helium recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500274.8U CN203428912U (en) | 2013-08-16 | 2013-08-16 | Helium recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203428912U true CN203428912U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320500274.8U Expired - Fee Related CN203428912U (en) | 2013-08-16 | 2013-08-16 | Helium recovery device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203428912U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939738A (en) * | 2014-04-25 | 2014-07-23 | 北京国彬信诚科技有限公司 | Valve low temperature detection helium gas recycling system and control method thereof |
| CN104456081A (en) * | 2014-12-02 | 2015-03-25 | 安徽皖仪科技股份有限公司 | Helium recovery system |
| CN107655260A (en) * | 2017-09-06 | 2018-02-02 | 武汉钢铁集团气体有限责任公司 | A kind of liquid argon tank car fills exhaust gas recovery system and its method |
| CN114484267A (en) * | 2022-01-29 | 2022-05-13 | 山东简森能源科技有限公司 | Helium subpackaging, recovering and purifying process |
-
2013
- 2013-08-16 CN CN201320500274.8U patent/CN203428912U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939738A (en) * | 2014-04-25 | 2014-07-23 | 北京国彬信诚科技有限公司 | Valve low temperature detection helium gas recycling system and control method thereof |
| CN103939738B (en) * | 2014-04-25 | 2017-01-25 | 北京国彬信诚科技有限公司 | Control method of valve low temperature detection helium gas recycling system |
| CN104456081A (en) * | 2014-12-02 | 2015-03-25 | 安徽皖仪科技股份有限公司 | Helium recovery system |
| CN107655260A (en) * | 2017-09-06 | 2018-02-02 | 武汉钢铁集团气体有限责任公司 | A kind of liquid argon tank car fills exhaust gas recovery system and its method |
| CN114484267A (en) * | 2022-01-29 | 2022-05-13 | 山东简森能源科技有限公司 | Helium subpackaging, recovering and purifying process |
| CN114484267B (en) * | 2022-01-29 | 2024-03-22 | 山东简森能源科技有限公司 | Helium split charging recovery and purification process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20150816 |
|
| EXPY | Termination of patent right or utility model |