CN104456081A - Helium recovery system - Google Patents
Helium recovery system Download PDFInfo
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- CN104456081A CN104456081A CN201410723131.2A CN201410723131A CN104456081A CN 104456081 A CN104456081 A CN 104456081A CN 201410723131 A CN201410723131 A CN 201410723131A CN 104456081 A CN104456081 A CN 104456081A
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- helium
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Abstract
The invention discloses a helium recovery system. The helium recovery system comprises a recovery port, a high-pressure recovery valve, a low-pressure recovery valve, a pressure sensor, a vacuum pump, a vacuum pump buffer tank, a high-pressure tank, a low-pressure tank, a compressor and an isolation valve. After helium in a tested part is recovered under high pressure, the helium in the tested part is recovered under low pressure by the vacuum pump until a certain set negative pressure value is reached, and the recovery rate of the helium in the tested part is improved. The recovered helium in the low-pressure tank is compressed into the high-pressure tank by the compressor, it is guaranteed that the helium in the low-pressure tank keeps in a certain negative pressure stage, effective high-pressure recovery of the helium is guaranteed and a good foundation is laid for low-pressure recovery of the helium.
Description
Technical field
The present invention relates to helium recovery field, specifically a kind of helium recovery system.
Background technique
Helium has colourless, tasteless, odorless, is the inert gas of gaseous state under normal temperature.Critical temperature is minimum, is the gas of the most difficult liquefaction, and pole torpescence can not be burnt, also not combustion-supporting.Just because of the characteristic that helium has, helium is widely used in modern industry.In helium mass spectrum leak detection industry field, during to tested middle injection positive pressure helium, employing suction gun is examined, vacuum box detects, accumulative detects, in order to economize on resources, the utilization again of helium, the recovery method of now general employing is high pressure absorption method, namely the pressure reduction in detected pieces mesohigh and recycling can is utilized, helium in detected pieces is flowed into recycling can automatically, this method reclaims the impact of helium by pressure in recycling can, along with the rising of the pressure in recycling can, pressure in detected pieces in pressure trend recycling can, when both pressure balances, callback course terminates, in detected pieces, residual fraction helium does not complete recovery.Recovering effect is undesirable, and helium recovery efficiency is low.Helium utilization ratio is low, causes a large amount of wastes of helium.
summary of the inventionthe object of this invention is to provide a kind of helium recovery system, to solve the undesirable problem of prior art helium recovery effect.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of helium recovery system, it is characterized in that: comprise the recovery port being communicated with pipeline, recovery port place is provided with P1 pressure transducer, the pipeline that recovery port is communicated with is divided into two branch roads, the import of a low pressure tank is communicated to again after the pipeline connection of one of them branch road has high pressure recovery valve, the pipeline of another branch road is communicated with low pressure recovery valve successively, the import of a vacuum pump is communicated to again after knock out drum, described vacuum delivery side of pump by pipeline connection to another import of low pressure tank, and pipeline between vacuum pump and low pressure tank is communicated with separating valve, described low pressure tank is provided with P2 pressure transducer, the outlet of low pressure tank is by the import of pipeline connection to compressor, and pipeline between low pressure tank and compressor is also communicated with separating valve, the outlet of compressor is by pipeline connection to pressure pan.
Described a kind of helium recovery system, is characterized in that: the separating valve between vacuum pump and low pressure tank and vacuum pump start and stop simultaneously.
Described a kind of helium recovery system, is characterized in that: compressor adopts common air compressor.
Described a kind of helium recovery system, is characterized in that: high pressure recovery valve, low pressure recovery valve, separating valve are solenoid valve, and external electric signal can be adopted to control.
Described a kind of helium recovery system, is characterized in that: vacuum pump is mechanical pump, can be controlled by external electric signal.
Advantage of the present invention:
The present invention has helium low pressure to reclaim function, and after high pressure has reclaimed, system completes helium low pressure by vacuum pump and reclaims, and ensure that helium recovery is more thorough, have a vacuum pump knock out drum at vacuum pump, when preventing from reclaiming, air-flow is to the impact of vacuum pump.The separating valve of the exhaust port side of vacuum pump and vacuum pump are in Systematical control, and start and stop simultaneously, can effectively prevent the helium in low pressure tank from being revealed by vacuum pump.
Recovery port installs a pressure transducer, can pressure change in Real-Time Monitoring detected pieces, provides strong foundation to effective recovery of helium.
Low pressure tank is installed a pressure transducer, the pressure of helium in Real-Time Monitoring low pressure tank, pressure in monitoring low pressure tank remains on certain stage of negative pressure, when pressure reaches CLV ceiling limit value, open compressor, helium in low pressure tank is squeezed into pressure pan, ensures that in low pressure tank, helium is in certain stage of negative pressure all the time, makes high pressure reclaim more effective.
When the helium pressure in low pressure tank reaches CLV ceiling limit value, helium in low pressure tank can be squeezed in pressure pan by compressor, complete the conversion of low pressure helium to high-pressure helium.The relief opening of compressor to pressure pan, effectively stops high-pressure helium to be revealed by compressor through a separating valve.
Accompanying drawing explanation
Fig. 1 is present system structural drawing.
Embodiment
Shown in Figure 1, a kind of helium recovery system, comprise the recovery port 1 being communicated with pipeline, recovery port 1 place is provided with P1 pressure transducer 2, the pipeline that recovery port 1 is communicated with is divided into two branch roads, the import of a low pressure tank 8 is communicated to again after the pipeline connection of one of them branch road has high pressure recovery valve 3, the pipeline of another branch road is communicated with low pressure recovery valve 5 successively, the import of a vacuum pump 6 is communicated to again after knock out drum 4, the outlet of vacuum pump 6 by pipeline connection to another import of low pressure tank 8, and pipeline between vacuum pump 6 and low pressure tank 8 is communicated with separating valve 7, low pressure tank 8 is provided with P2 pressure transducer 9, the outlet of low pressure tank 8 is by the import of pipeline connection to compressor 11, and pipeline between low pressure tank 8 and compressor 11 is also communicated with separating valve 10, the outlet of compressor 11 is by pipeline connection to pressure pan 12.
Separating valve 7 between vacuum pump 6 and low pressure tank 8 and vacuum pump 6 start and stop simultaneously.
Compressor 11 adopts common air compressor.
High pressure recovery valve 3, low pressure recovery valve 5, separating valve 7 and 10 are solenoid valve, and external electric signal can be adopted to control.
Vacuum pump 6 is mechanical pump, can be controlled by external electric signal.
In the present invention, a P1 pressure transducer 2 is installed at recovery port 1 place.Draw two branch roads respectively again, a high pressure reclaims branch road by high pressure recovery valve 3 to low pressure tank 8; Another low pressure reclaims branch road, through low pressure recovery valve 5, knock out drum 4, vacuum pump 6, is connected to low pressure tank 8 after separating valve 7.P2 pressure transducer 9 is arranged on low pressure tank.From low pressure tank 8, separating valve 10, compressor 11 are connected to pressure pan 12 excessively.
Claims (5)
1. a helium recovery system, it is characterized in that: comprise the recovery port being communicated with pipeline, recovery port place is provided with P1 pressure transducer, the pipeline that recovery port is communicated with is divided into two branch roads, the import of a low pressure tank is communicated to again after the pipeline connection of one of them branch road has high pressure recovery valve, the pipeline of another branch road is communicated with low pressure recovery valve successively, the import of a vacuum pump is communicated to again after knock out drum, described vacuum delivery side of pump by pipeline connection to another import of low pressure tank, and pipeline between vacuum pump and low pressure tank is communicated with separating valve, described low pressure tank is provided with P2 pressure transducer, the outlet of low pressure tank is by the import of pipeline connection to compressor, and pipeline between low pressure tank and compressor is also communicated with separating valve, the outlet of compressor is by pipeline connection to pressure pan.
2. a kind of helium recovery system according to claim 1, is characterized in that: the separating valve between vacuum pump and low pressure tank and vacuum pump start and stop simultaneously.
3. a kind of helium recovery system according to claim 1, is characterized in that: compressor adopts common air compressor.
4. a kind of helium recovery system according to claim 1, is characterized in that: high pressure recovery valve, low pressure recovery valve, separating valve are solenoid valve, and external electric signal can be adopted to control.
5. a kind of helium recovery system according to claim 1, is characterized in that: vacuum pump is mechanical pump, can be controlled by external electric signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201410723131.2A CN104456081A (en) | 2014-12-02 | 2014-12-02 | Helium recovery system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410723131.2A CN104456081A (en) | 2014-12-02 | 2014-12-02 | Helium recovery system |
Publications (1)
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CN104456081A true CN104456081A (en) | 2015-03-25 |
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Family Applications (1)
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CN201410723131.2A Pending CN104456081A (en) | 2014-12-02 | 2014-12-02 | Helium recovery system |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105903365A (en) * | 2016-07-01 | 2016-08-31 | 广州新龙浩工业设备有限公司 | High-precision nitrogen helium mixing device with recycling function |
CN108862219A (en) * | 2017-05-12 | 2018-11-23 | 北京回能环保科技有限公司 | A kind of fibre drawing furnace cooling tube helium recovery unit |
CN109185696A (en) * | 2018-09-29 | 2019-01-11 | 宁波健信核磁技术有限公司 | A kind of helium recovery unit and method of efficient high-purity |
CN109506844A (en) * | 2018-12-27 | 2019-03-22 | 益和电气集团股份有限公司 | A kind of ring network cabinet SF6 gas tank helium check system and method |
CN110714904A (en) * | 2019-10-22 | 2020-01-21 | 中国工程物理研究院材料研究所 | Gas transfer pump output system and method |
Citations (5)
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US20040237789A1 (en) * | 2001-07-31 | 2004-12-02 | Baksh Mohamed Safdar Allie | Helium recovery |
CN202793693U (en) * | 2012-08-09 | 2013-03-13 | 陕西国德电气制造有限公司 | Housing detection gas recovery device |
CN203428912U (en) * | 2013-08-16 | 2014-02-12 | 中国计量科学研究院 | Helium recovery device |
CN203807172U (en) * | 2014-03-25 | 2014-09-03 | 盛旺汽车零部件(昆山)有限公司 | Helium recovery system |
CN203963503U (en) * | 2014-04-10 | 2014-11-26 | 德尔福(上海)动力推进系统有限公司 | High pressure helium recycle and reuse device in a kind of leak-testing |
-
2014
- 2014-12-02 CN CN201410723131.2A patent/CN104456081A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US20040237789A1 (en) * | 2001-07-31 | 2004-12-02 | Baksh Mohamed Safdar Allie | Helium recovery |
CN202793693U (en) * | 2012-08-09 | 2013-03-13 | 陕西国德电气制造有限公司 | Housing detection gas recovery device |
CN203428912U (en) * | 2013-08-16 | 2014-02-12 | 中国计量科学研究院 | Helium recovery device |
CN203807172U (en) * | 2014-03-25 | 2014-09-03 | 盛旺汽车零部件(昆山)有限公司 | Helium recovery system |
CN203963503U (en) * | 2014-04-10 | 2014-11-26 | 德尔福(上海)动力推进系统有限公司 | High pressure helium recycle and reuse device in a kind of leak-testing |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105903365A (en) * | 2016-07-01 | 2016-08-31 | 广州新龙浩工业设备有限公司 | High-precision nitrogen helium mixing device with recycling function |
CN108862219A (en) * | 2017-05-12 | 2018-11-23 | 北京回能环保科技有限公司 | A kind of fibre drawing furnace cooling tube helium recovery unit |
CN109185696A (en) * | 2018-09-29 | 2019-01-11 | 宁波健信核磁技术有限公司 | A kind of helium recovery unit and method of efficient high-purity |
CN109506844A (en) * | 2018-12-27 | 2019-03-22 | 益和电气集团股份有限公司 | A kind of ring network cabinet SF6 gas tank helium check system and method |
CN110714904A (en) * | 2019-10-22 | 2020-01-21 | 中国工程物理研究院材料研究所 | Gas transfer pump output system and method |
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Application publication date: 20150325 |