CN109945070A - helium recovery device - Google Patents
helium recovery device Download PDFInfo
- Publication number
- CN109945070A CN109945070A CN201711385269.6A CN201711385269A CN109945070A CN 109945070 A CN109945070 A CN 109945070A CN 201711385269 A CN201711385269 A CN 201711385269A CN 109945070 A CN109945070 A CN 109945070A
- Authority
- CN
- China
- Prior art keywords
- helium
- control valve
- gas
- valve
- storing bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention provides a helium gas recovery device which comprises a recovery system, a compression system, a filtering system, a storage system, a detection system, a helium supplementing system and an output system. The recovery system comprises a first control valve, a vacuum tank, a vacuum pump, a gas storage bag and a sensor, wherein the first control valve is connected with an external helium detection mechanism, the vacuum tank is connected with the first control valve, the vacuum pump is connected between the vacuum tank and the gas storage bag, and the sensor can detect the amount of helium in the gas storage bag. The compression system is communicated with the air storage bag and is controlled by the sensor, and the filtering system is connected between the compression system and the storage system. The output system comprises an output valve and an output pipeline connected to the output valve, the output pipeline is used for being connected to the helium detection mechanism, and the storage system is connected with the output valve. The detection system is coupled to the storage system and is configured to detect a helium concentration within the storage system. The helium supplementing system comprises a first gas storage tank and a second control valve, and the first gas storage tank is communicated with the gas storage bag through the second control valve.
Description
Technical field
The present invention relates to helium recovery field more particularly to a kind of helium recovery units.
Background technique
Current many fields all use helium, for example, detecting in battery production usually using helium leak detection system
The leakproofness of battery.But helium leak detection system does not recycle function, meanwhile, detecting used helium is usually high concentration
Helium causes helium to waste, and use cost increases.
Summary of the invention
In view of the problems in the background art, the purpose of the present invention is to provide a kind of helium recovery units, can be fast
Speed recycling helium, and directly use the circulated helium of recycling, helium loss is efficiently reduced, cost is reduced.
To achieve the goals above, the present invention provides a kind of helium recovery units comprising recovery system, compression system
System, storage system, detection system, mends helium system and output system at filtration system.
Recovery system includes the first control valve, vacuum tank, vacuum pump, gas-storing bag and inductor, and the first control valve is used for
Be connected with external helium testing agency, vacuum tank is connected with the first control valve, vacuum pump be connected to vacuum tank and gas-storing bag it
Between and the helium in vacuum tank can be transported to gas-storing bag, inductor is set to gas-storing bag and is able to detect the helium in gas-storing bag
Tolerance.
Compressibility is connected to gas-storing bag and the control by inductor, and filtration system is connected to compressibility and storage system
Between system, compressibility compresses the helium in gas-storing bag after the signal for receiving inductor, and compressed helium is by filtering
Storage system is stored into after system.
Output system includes output valve and the output pipe for being connected to output valve, and output pipe is for being connected to helium
Gas testing agency, storage system are connected with output valve.
Detection system is connected with storage system and is used to detect the concentrations of helium in storage system, and when concentrations of helium reaches
When setting value, output valve is connected and helium is transported to helium testing agency.
Mending helium system includes the first air accumulator and the second control valve, and the first air accumulator storage inside has high concentration helium simultaneously
It is connected to via the second control valve with gas-storing bag.
Beneficial effects of the present invention are as follows:
When the vacuum degree of vacuum tank is lower than setting value, vacuum pump work simultaneously vacuumizes vacuum tank, so that vacuum tank
Vacuum degree reaches setting value.After the completion of the detection circulation of helium testing agency, the first control valve is connected, and due to vacuum
Tank is in high vacuum, so the helium in helium testing agency can be recycled quickly.The pumping of helium in vacuum tank in vacuum pump
Suction effect is lower to enter gas-storing bag.Inductor can detect the amount of helium in gas-storing bag in real time.
When the amount of helium in gas-storing bag reaches setting value, inductor obtains signal and starts compressibility, compressibility
Helium is simultaneously input to filtration system by compressed helium, is stored into storage system by the filtered helium of filtration system.
When the concentrations of helium in storage system is lower than setting value, the second control valve for mending helium system is connected, the first gas storage
High concentration helium in tank enters gas-storing bag, and storage system is then entered after compressibility, filtration system, to increase storage
Concentrations of helium in system simultaneously reaches setting value.When the concentrations of helium of storage system reaches setting value, output valve is connected simultaneously
Helium is transported to helium testing agency, to be reused for next cycle detection.
In short, helium recovery unit of the invention can quickly recycle helium, and directly the circulated helium of recycling is used,
Helium loss is efficiently reduced, cost is reduced.
Detailed description of the invention
Fig. 1 is the schematic diagram of helium recovery unit according to the present invention.
Wherein, the reference numerals are as follows:
1 recovery system, 5 detection system
11 first control valve, 51 concentrations of helium detector
The 5th control valve of 12 vacuum tank 52
The 6th control valve of 13 vacuum pump 53
The 7th control valve of 14 gas-storing bag 54
15 inductor, 55 throttle valve
16 pressure reducing valves 6 mend helium system
17 first check valve, 61 first air accumulator
2 compressibility, 62 second control valve
21 compressor, 63 second one-way valve
The 8th control valve of 22 collector 64
The 9th control valve of 23 third control valve 65
The 4th check valve of 3 filtration system 66
The tenth control valve of 31 carbon filter 67
32 oil mist filter, 7 output system
33 particulate filter, 71 output valve
34 third check valve, 72 output pipe
4 storage system A helium testing agencies
41 second air accumulator B filters
42 the 4th control valves
Specific embodiment
Carry out the helium recovery unit that the present invention will be described in detail with reference to the accompanying drawings.
Referring to Fig.1, helium recovery unit of the invention includes recovery system 1, compressibility 2, filtration system 3, storage system
System 4, mends helium system 6 and output system 7 at detection system 5.
Recovery system 1 include the first control valve 11, vacuum tank 12, vacuum pump 13, gas-storing bag 14 and inductor 15, first
Control valve 11 is used to be connected with external helium testing agency A, and vacuum tank 12 is connected with the first control valve 11, and vacuum pump 13 connects
Between vacuum tank 12 and gas-storing bag 14 and the helium in vacuum tank 12 can be transported to gas-storing bag 14, inductor 15 is set to
Gas-storing bag 14 and the amount of helium being able to detect in gas-storing bag 14.
Compressibility 2 is connected to gas-storing bag 14 and the control by inductor 15, and filtration system 3 is connected to compressibility 2
Between storage system 4, compressibility 2 compresses the helium in gas-storing bag 14 after the signal for receiving inductor 15, after compression
Helium storage system 4 is stored into after filtration system 3.
Output system 7 includes output valve 71 and the output pipe 72 for being connected to output valve 71, and output pipe 72 is used
In being connected to helium testing agency A, storage system 4 is connected with output valve 71.
Detection system 5 is connected with storage system 4 and for detecting the concentrations of helium in storage system 4, and works as concentrations of helium
When reaching setting value, output valve 71 is connected and helium is transported to helium testing agency A.
Mending helium system 6 includes the first air accumulator 61 and the second control valve 62, and 61 storage inside of the first air accumulator has highly concentrated
Degree helium is simultaneously connected to via the second control valve 62 with gas-storing bag 14.
Helium testing agency A is the equipment using helium testing product performance.For example, helium testing agency A can be used for examining
Survey the leakproofness of battery.Specifically, after the top cover of battery is together with case weld, need to detect the leakproofness of welding.And helium
Gas testing agency A is then that a certain concentration helium is injected into battery, and detects whether there are helium leakage, to judge battery
Leakproofness.After the completion of detection, helium testing agency A then extracts the helium in battery out, and helium recovery unit of the invention can
For recycling the helium in battery.
Vacuum tank 12 needs to be maintained at high vacuum state, and recovery system 1 may also include vacuum meter to detect vacuum tank 12
Vacuum degree.When the vacuum degree of vacuum tank 12 is lower than setting value, vacuum pump 13 works and vacuumizes to vacuum tank 12, so that vacuum
The vacuum degree of tank 12 reaches setting value (for example, vacuum tank 12 can be extracted by vacuum pump 13 when working is less than or equal to -90KPa).When
After the completion of the detection circulation of helium testing agency A, the first control valve 11 is connected, and since vacuum tank 12 is in high vacuum,
So the helium (other gases also certainly, are mixed in helium) in helium testing agency A can be recycled quickly.In vacuum tank 12
The helium other gases of mixing (and) enter gas-storing bag 14 under the swabbing action of vacuum pump 13.Inductor 15 can be real-time
Detection gas-storing bag 14 in amount of helium.
Helium testing agency A, the first control valve 11, vacuum tank 12, vacuum pump 13 and gas-storing bag 14 can be by pipelines successively
Connection.Gas-storing bag 14 can be airbag flexible, and with increasing for amount of helium, gas-storing bag 14 is become larger.Inductor 15 can lead to
The volume change of induction gas-storing bag 14 is crossed to judge amount of helium.Inductor 15 can be three, the minimum of an induction gas-storing bag 14
State (i.e. without helium in gas-storing bag 14), the maximum rating (helium is full of in gas-storing bag 14) of another induction gas-storing bag 14,
(amount of helium i.e. in gas-storing bag 14 has reached setting value to the setting state of the last one induction gas-storing bag 14, can start compression system
System is 2).
Gas-storing bag 14, compressibility 2, filtration system 3 and storage system 4 can be sequentially connected by pipeline.Work as gas-storing bag
When amount of helium in 14 reaches setting value, inductor 15 obtains signal and starts compressibility 2, and 2 compressed helium of compressibility is simultaneously
Helium is input to filtration system 3, is stored into storage system 4 by the filtered helium of filtration system 3.In the process of compression
In, the first control valve 11 disconnects.
Detection system 5 is connected by pipeline with storage system 4 and is able to detect the concentrations of helium in storage system 4.When depositing
When concentrations of helium in storage system 4 is lower than setting value, the second control valve 62 for mending helium system 6 is connected, in the first air accumulator 61
High concentration helium (concentration can be 99%, higher than the concentrations of helium extracted out from helium testing agency A) enters gas-storing bag 14, then passes through
Enter storage system 4 after over-voltage compression system 2, filtration system 3, to increase the concentrations of helium in storage system 4 and reach setting value.
When the concentrations of helium of storage system 4 reaches setting value, output valve 71 is connected and helium is transported to helium testing agency A,
To be reused for next cycle detection.
Helium recovery unit of the invention can quickly recycle helium, and directly use the circulated helium of recycling, effectively
Ground reduces helium loss, reduces cost.
Referring to Fig.1, the first air accumulator 61 is also connected to output valve 71.Output valve 71 is multi-pass directional control valve.When
Equipment breaks down when can not recycle helium, or the helium of recycling is unable to satisfy when requiring, and output valve 71 is by the first storage
Gas tank 61 is connected with output pipe 72, and the helium in the first air accumulator 61 is fed directly into helium testing agency A, realizes medium well continuously
It produces.
Referring to Fig.1, recovery system 1 further includes pressure reducing valve 16, is connected between gas-storing bag 14 and the first control valve 11.Change sentence
It talks about, pressure reducing valve 16 is in parallel with vacuum tank 12 and vacuum pump 13.When vacuum tank 12 or vacuum pump 13 break down, helium detection
Helium in mechanism A can enter gas-storing bag 14 by pressure reducing valve 16.
In the settable filter B in the upstream of vacuum tank 12, to carry out primary filtration to helium.
Recovery system 1 may also include the first check valve 17, and vacuum pump 13 connects via the first check valve 17 with gas-storing bag 14
It is logical.Vacuum pump 13, the first check valve 17 and gas-storing bag 14 are sequentially connected by pipeline.First check valve 17 can prevent gas-storing bag 14
In interior gas backstreaming to vacuum pump 13 and vacuum tank 12.
Compressibility 2 may include compressor 21, collector 22 and third control valve 23, and 21 compressed helium of compressor simultaneously will
Helium is transported to filtration system 3, and the liquid that compressor 21 generates in compression process enters collector via third control valve 23
22.Compressor 21 extracts the helium in gas-storing bag 14 and is compressed, and compressed gas enters filtration system 3.In helium
It in compression process, can generate liquid (such as greasy dirt), liquid enters collector 22 by third control valve 23.It is set on collector 22
There is manually-operated gate, when the liquid of collection reaches a certain amount of, liquid is discharged in openable manually-operated gate.
Filtration system 3 may include carbon filter 31, oil mist filter 32 and particulate filter 33.Particulate filter 33 can be
3 μm of particulate filters.Filtration system 3 may also include third check valve 34, be set to the connection of filtration system 3 Yu storage system 4
On pipeline, to prevent the helium gas back in storage system 4 to filtration system 3.
Storage system 4 may include the second air accumulator 41 and the 4th control valve 42 for being set to the second air accumulator 41, and
Two air accumulators 41 are connected by the 4th control valve 42 with output valve 71 and filtration system 3.4th control valve 42 can be directly arranged
On the second air accumulator 41, the disengaging of gas is both needed to by the 4th control valve 42 in the second air accumulator 41.4th control valve 42 connects
When logical, the filtered helium of filtration system 3 can enter the second air accumulator 41, and the helium in the second air accumulator 41 can also pass through output
Valve 71.But the intake process and exhaust process of the second air accumulator 41 are mutually indepedent, will not carry out simultaneously.
Second air accumulator 41 can be multiple, one the 4th control valve 42 of setting on each second air accumulator 41.
Detection system 5 may include concentrations of helium detector 51 and the 5th control valve 52, and concentrations of helium detector 51 passes through
It is connected to by the 5th control valve 52 with storage system 4.Second air accumulator 41, the 4th control valve 42, the 5th control valve 52 and helium are dense
Degree detector 51 is sequentially communicated via pipeline.When needing to detect the concentrations of helium in the second air accumulator 41, the 4th control valve 42
It is connected with the 5th control valve 52, helium flows into concentrations of helium detector 51.After the completion of detection, the 5th control valve 52 is disconnected.
Detection system 5 may also include pressure gauge, to detect the air pressure inside of the second air accumulator 41.When in the second air accumulator 41
Air pressure and concentrations of helium when reaching setting value, output valve 71, which is connected, is simultaneously transported to helium for the helium in the second air accumulator 41
Gas testing agency A, is reused for next cycle detection.
Detection system 5 further includes the 6th control valve 53 and the 7th control valve 54, and vacuum tank 12 is via the 6th control valve 53
It is connected to concentrations of helium detector 51, gas-storing bag 14 is connected to via the 7th control valve 54 with concentrations of helium detector 51.Vacuum tank
12, the 6th control valve 53 and concentrations of helium detector 51 are sequentially communicated via pipeline, gas-storing bag 14, the 7th control valve 54 and helium
Concentration detector 51 is sequentially communicated via pipeline.6th control valve 53 can be solenoid valve, and the 7th control valve 54 can be manually-operated gate.
Detection system 5 further includes the throttle valve 55 being set between concentrations of helium detector 51 and the 5th control valve 52, with
Regulation enters the flow of concentrations of helium detector 51.
Mend helium system 6 further include second one-way valve 63, the 8th control valve 64, the 9th control valve 65, the 4th check valve 66 with
And the tenth control valve 67.
First air accumulator 61, the second control valve 62, second one-way valve 63 and gas-storing bag 14 are sequentially communicated via pipeline.When
When two control valves 62 are connected, the high concentration helium in the first air accumulator 61 flows to gas-storing bag 14, and second one-way valve 63 can prevent
Only the helium gas back in gas-storing bag 14 is to the first air accumulator 61.
First air accumulator 61, the 8th control valve 64 and filtration system 3 are sequentially communicated via pipeline.When gas-storing bag 14 or pressure
When compression system 2 breaks down, the 8th control valve 64 is connected, and the first air accumulator 61 can be via filtration system 3 directly to the second gas storage
Tank 41 supplements high concentration helium, to improve the concentrations of helium in the second air accumulator 41.
Settable 9th control valve 65 on first air accumulator 61, to control the exhaust of the first air accumulator 61.First storage
Gas tank 61, the 4th check valve 66 and output valve 71 are sequentially communicated via pipeline.
First air accumulator 61 can also directly be connected with output pipe 72 via the tenth control valve 67.Tenth control valve 67 can be
Manually-operated gate.When output valve 71 breaks down, the tenth control valve 67, the helium in the first air accumulator 61 can be directly opened manually
Gas directly can feed helium testing agency A by output pipe 72, realize production free of discontinuities.
Helium recovery unit of the invention further includes control system (not shown), to control each valve, vacuum pump 13, pressure
The mechanisms such as contracting machine 21, concentrations of helium detector 51.Specifically, control system includes touch control screen, can set and join according to demand
Number, for example, gas-storing bag 14 triggers the amount of helium of inductor 15, the concentrations of helium etc. in storage system 4.
It is set by the concentration of touch control screen, the helium of any one concentration can be obtained.And directly utilize low concentration (example
Such as, helium 60%) enters helium testing agency A and is detected, and can achieve the purpose of saving.
Claims (10)
1. a kind of helium recovery unit, which is characterized in that including recovery system (1), compressibility (2), filtration system (3), deposit
Storage system (4), mends helium system (6) and output system (7) at detection system (5)；
Recovery system (1) includes the first control valve (11), vacuum tank (12), vacuum pump (13), gas-storing bag (14) and inductor
(15), the first control valve (11) is used to be connected with external helium testing agency (A), vacuum tank (12) and the first control valve (11)
It is connected, vacuum pump (13) is connected between vacuum tank (12) and gas-storing bag (14) and can convey the helium in vacuum tank (12)
The amount of helium for being set to gas-storing bag (14) to gas-storing bag (14), inductor (15) and being able to detect in gas-storing bag (14)；
Compressibility (2) is connected to gas-storing bag (14) and the control by inductor (15), and filtration system (3) is connected to compression system
It unites (2) between storage system (4), compressibility (2) is compressed after the signal for receiving inductor (15) in gas-storing bag (14)
Helium, compressed helium is stored into storage system (4) after filtration system (3)；
Output system (7) includes output valve (71) and the output pipe (72) for being connected to output valve (71), output pipe
(72) for being connected to helium testing agency (A), storage system (4) is connected with output valve (71)；
Detection system (5) is connected with storage system (4) and for detecting the concentrations of helium in storage system (4), and when helium is dense
When degree reaches setting value, output valve (71) is connected and helium is transported to helium testing agency (A)；
Mending helium system (6) includes the first air accumulator (61) and the second control valve (62), and the first air accumulator (61) storage inside has
High concentration helium is simultaneously connected to via the second control valve (62) with gas-storing bag (14).
2. helium recovery unit according to claim 1, which is characterized in that the first air accumulator (61) is also connected to delivery valve
Door (71).
3. helium recovery unit according to claim 1, which is characterized in that recovery system (1) further includes pressure reducing valve (16),
It is connected between gas-storing bag (14) and the first control valve (11).
4. helium recovery unit according to claim 1, which is characterized in that
Recovery system (1) further includes the first check valve (17), and vacuum pump (13) is via the first check valve (17) and gas-storing bag
(14) it is connected to；
Mending helium system (6) further includes second one-way valve (63), and the second control valve (62) is via second one-way valve (63) and gas storage
Bag (14) connection.
5. helium recovery unit according to claim 1, which is characterized in that compressibility (2) includes compressor (21), receives
Helium is simultaneously transported to filtration system (3), compressor by storage (22) and third control valve (23), compressor (21) compressed helium
(21) liquid generated in compression process enters collector (22) via third control valve (23).
6. helium recovery unit according to claim 1, which is characterized in that filtration system (3) include carbon filter (31),
Oil mist filter (32) and particulate filter (33).
7. helium recovery unit according to claim 1, which is characterized in that storage system (4) includes the second air accumulator
(41) and it is set to the 4th control valve (42) of the second air accumulator (41), and the second air accumulator (41) passes through the 4th control valve
(42) it is connected with output valve (71) and filtration system (3).
8. helium recovery unit according to claim 1, which is characterized in that detection system (5) includes concentrations of helium detection
Instrument (51) and the 5th control valve (52), and concentrations of helium detector (51) is via the 5th control valve (52) and storage system (4)
Connection.
9. helium recovery unit according to claim 1, which is characterized in that detection system (5) includes the 6th control valve
(53) and the 7th control valve (54), and vacuum tank (12) is connected to via the 6th control valve (53) with concentrations of helium detector (51),
Gas-storing bag (14) is connected to via the 7th control valve (54) with concentrations of helium detector (51).
10. helium recovery unit according to claim 1, which is characterized in that mending helium system (6) further includes the 8th control valve
(64), and the first air accumulator (61) is connected to via the 8th control valve (64) with filtration system (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711385269.6A CN109945070B (en) | 2017-12-20 | 2017-12-20 | Helium recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711385269.6A CN109945070B (en) | 2017-12-20 | 2017-12-20 | Helium recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109945070A true CN109945070A (en) | 2019-06-28 |
| CN109945070B CN109945070B (en) | 2020-10-02 |
Family
ID=67004296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711385269.6A Active CN109945070B (en) | 2017-12-20 | 2017-12-20 | Helium recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109945070B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141458A (en) * | 2019-12-25 | 2020-05-12 | 兰州空间技术物理研究所 | Helium recovery device and recovery method for leak detection of high-pressure gas cylinder |
| CN112098008A (en) * | 2020-08-25 | 2020-12-18 | 广东鸿图科技股份有限公司 | Device for detecting air tightness of workpiece |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080021245A (en) * | 2006-09-01 | 2008-03-07 | 조건환 | Method and apparatus for recovery and recycling of used helium gas |
| CN102597670A (en) * | 2009-10-26 | 2012-07-18 | 西班牙高等科研理事会 | Helium-recovery plant |
| CN104003361A (en) * | 2014-05-26 | 2014-08-27 | 安徽万瑞冷电科技有限公司 | Apparatus for realizing on-line purification and circulation of air conditioning leak detection waste helium gas |
| CN203807172U (en) * | 2014-03-25 | 2014-09-03 | 盛旺汽车零部件（昆山）有限公司 | Helium recovery system |
| CN204494085U (en) * | 2015-02-05 | 2015-07-22 | 伟世通汽车空调（北京）有限公司 | The high pressure resistant test of automobile condenser core body-helium inflation and recovery integrated system |
| CN105948003A (en) * | 2016-04-13 | 2016-09-21 | 安徽万瑞冷电科技有限公司 | Waste helium purification and recovery system and control method thereof |
| CN106167252A (en) * | 2016-06-24 | 2016-11-30 | 格力电器（芜湖）有限公司 | Concentrations of helium purification system |
| CN106744749A (en) * | 2016-11-30 | 2017-05-31 | 富通集团（嘉善）通信技术有限公司 | For the helium online recycling Application way and device of drawing optical fibers system |
| CN206738932U (en) * | 2017-03-04 | 2017-12-12 | 广州灵帕机电科技有限公司 | A kind of special helium recovery unit of power vehicle |
-
2017
- 2017-12-20 CN CN201711385269.6A patent/CN109945070B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080021245A (en) * | 2006-09-01 | 2008-03-07 | 조건환 | Method and apparatus for recovery and recycling of used helium gas |
| CN102597670A (en) * | 2009-10-26 | 2012-07-18 | 西班牙高等科研理事会 | Helium-recovery plant |
| CN203807172U (en) * | 2014-03-25 | 2014-09-03 | 盛旺汽车零部件（昆山）有限公司 | Helium recovery system |
| CN104003361A (en) * | 2014-05-26 | 2014-08-27 | 安徽万瑞冷电科技有限公司 | Apparatus for realizing on-line purification and circulation of air conditioning leak detection waste helium gas |
| CN204494085U (en) * | 2015-02-05 | 2015-07-22 | 伟世通汽车空调（北京）有限公司 | The high pressure resistant test of automobile condenser core body-helium inflation and recovery integrated system |
| CN105948003A (en) * | 2016-04-13 | 2016-09-21 | 安徽万瑞冷电科技有限公司 | Waste helium purification and recovery system and control method thereof |
| CN106167252A (en) * | 2016-06-24 | 2016-11-30 | 格力电器（芜湖）有限公司 | Concentrations of helium purification system |
| CN106744749A (en) * | 2016-11-30 | 2017-05-31 | 富通集团（嘉善）通信技术有限公司 | For the helium online recycling Application way and device of drawing optical fibers system |
| CN206738932U (en) * | 2017-03-04 | 2017-12-12 | 广州灵帕机电科技有限公司 | A kind of special helium recovery unit of power vehicle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141458A (en) * | 2019-12-25 | 2020-05-12 | 兰州空间技术物理研究所 | Helium recovery device and recovery method for leak detection of high-pressure gas cylinder |
| CN111141458B (en) * | 2019-12-25 | 2022-01-21 | 兰州空间技术物理研究所 | Helium recovery device and recovery method for leak detection of high-pressure gas cylinder |
| CN112098008A (en) * | 2020-08-25 | 2020-12-18 | 广东鸿图科技股份有限公司 | Device for detecting air tightness of workpiece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109945070B (en) | 2020-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107532544B (en) | The method of the leakage of internal combustion engine and for identification crankcase ventilation system and/or fuel tank vent system | |
| CN109945070A (en) | helium recovery device | |
| CN110331965B (en) | Continuous circulation supercharging gas production equipment | |
| CN103438629A (en) | Multi-functional refrigerant machine | |
| CN111606055A (en) | Vacuum material sucking and conveying pump system and working method thereof | |
| CN102989711B (en) | Impurity collecting device for oil sprayer | |
| CN207215392U (en) | A kind of battery sealing-performance detection device | |
| CN209415043U (en) | A kind of waste liquid automatic recycling device | |
| CN104180950A (en) | Water purification equipment tightness detection system and method | |
| CN206020232U (en) | A kind of purifier test system | |
| CN102913756B (en) | Residual gas recovery system of gas station compressor | |
| CN209558021U (en) | A kind of gas transfer cycle system | |
| CN109488882B (en) | Gas-liquid mixed transportation supercharging device with wire mesh demister and method | |
| CN104100238A (en) | Ejection pressurizing type sleeve gas recovery device | |
| CN208153447U (en) | A kind of hydraulic slip ring integrated experimental device | |
| CN208728225U (en) | The hydraulic system of scouring stage | |
| CN207609993U (en) | Oil-gas pipeline safety detects the medium supply apparatus of simulation system | |
| CN206399783U (en) | A kind of water purifying device test system | |
| CN107543687A (en) | A kind of check valve life test apparatus | |
| CN207018275U (en) | A kind of Pneumatic hydraulic pressure charging system | |
| CN206290971U (en) | The defeated plenum system of compressor | |
| CN111619822A (en) | Pneumatic explosion-proof oiling equipment for civil aircraft fuel oil component | |
| CN206470009U (en) | Energy regenerating test machine | |
| CN202350390U (en) | Automatic oil returning device for centrifugal type cold water or heat pump set | |
| CN215917010U (en) | Tracer diluting device for activated carbon performance test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |