CN103511832A - Whole-series oil-free SF6 gas recovering and filling device - Google Patents
Whole-series oil-free SF6 gas recovering and filling device Download PDFInfo
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- CN103511832A CN103511832A CN201210218541.2A CN201210218541A CN103511832A CN 103511832 A CN103511832 A CN 103511832A CN 201210218541 A CN201210218541 A CN 201210218541A CN 103511832 A CN103511832 A CN 103511832A
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Abstract
The invention discloses a whole-series oil-free SF6 gas recovering and filling device. The whole-series oil-free SF6 gas recovering and filling device comprises a first vacuum pump, a second vacuum pump, a first ball valve, a second ball valve, a first check valve, a second check valve, a negative-pressure recycling machine, a compressor, an electromagnetic valve, a safety exhaust valve and pipelines, wherein an inlet of the first ball valve is connected with an inlet of the second ball valve, an outlet of the first ball valve is connected with the suction end of the first vacuum pump, an exhaust end of the first vacuum pump is connected with the suction end of the second vacuum pump, the inlet end of the safety exhaust valve is connected to the pipeline between the first vacuum pump and the second vacuum pump, the exhaust end of the second vacuum pump is open, an outlet of the second ball valve is connected to an inlet of the electromagnetic valve, an outlet of the electromagnetic valve is connected with the negative-pressure recycling machine through the pipeline, the negative-pressure recycling machine is connected with an inlet of the compressor through the second check valve and the pipeline, the inlet end of the first check valve is connected with the inlet pipeline of the electromagnetic valve, and the exhaust end of the first check valve is connected to the inlet pipeline of the compressor. The whole-series oil-free SF6 gas recovering and filling device has the advantages that SF6 gas is prevented from being in contact with oil, and the influence of the oil on the quality of the SF6 gas is avoided in theory.
Description
Technical field
The invention belongs to gas recovery techniques field, relate to a kind of gas and reclaim inflator, especially a kind of complete series oil-free SF6 gas reclaims inflator.
Background technique
At present, as insulation and arc-extinguishing medium, still do not have other efficient ways to substitute SF6 gas from technology, economy and ecological angle.SF6 gas is widely used in electrical equipment.From application, SF6 circuit breaker is topmost field, substantially replaces the oil circuit breaker of 110kV and above.In addition the transformer etc. that also comprises, SF6 combined electric equipment, SF6 current-voltage transformer and small capacity.From various countries' development, SF6 gas instead insulating oil is the inexorable trend of development as arc extinguishing and insulating medium.Especially ultrahigh pressure reaches ten thousand volts of 50-100 when above, and SF6 gas arc extinguishing and insulating properties, ecological efficiency are particularly evident.Worldwide, SF6 gas becomes irreplaceable unique insulation at present and arc-extinguishing medium.Therefore in ultrahigh pressure field, the purity of SF6 gas has just been risen to new high.
If SF6 gas reclaims inflator, use the compressor of oil lubrication to reclaim SF6 gas, in SF6 gas, must be mixed with oil gas or oil molecule, even by oil strainer, can not definitely guarantee that oil-filtering rate reaches 100%.Do not get rid of in addition after oil strainer inefficacy, or human operational error, a large amount of lubricant oil is sneaked into SF6 gas, must cause high-voltage switch gear fault, and consequence is hardly imaginable!
If SF6 gas reclaims inflator, use the vacuum pump of oil lubrication to carry out vacuum pumping to SF6 switch, if be misoperation in equipment unexpected power-off in service or people, in unshielded measure situation, the lubricant oil in vacuum pump can directly return into high-voltage switch gear.Even if arrange and anti-return solenoid, can not get rid of the anti-solenoid that returns and lose efficacy, or people is other etc. factor causes lubricant oil to enter high-voltage switch gear, consequence is hardly imaginable equally!
The SF6 gas that this patent relates to reclaims inflator, is applied to exactly recovery, purification, processing, the storage of SF6 gas, then the special device recharging.Simultaneously can be to carrying out vacuum pumping before the inflation of SF6 switch.
Summary of the invention
The object of the invention is to overcome the shortcoming of above-mentioned prior art, provide a kind of and be applied to reclaim, purify, process, store, then the SF6 gas recharging recovery inflator, it can be to carrying out vacuum pumping before the inflation of SF6 switch.
The object of the invention is to solve by the following technical programs:
This complete series oil-free SF6 gas reclaims inflator, comprises first and second vacuum pump, first and second ball valve, first and second safety check, negative pressure recycling machine, compressor, solenoid valve, safety exhaust and pipeline; The import of described first and second ball valve connects by pipeline, the outlet of the first ball valve connects the suction end of the first vacuum pump, the exhaust end of the first vacuum pump connects the suction end of the second vacuum pump by pipeline, the inlet end of described safety exhaust is connected on the pipeline between first and second vacuum pump by pipeline, and the exhaust end of described the second vacuum pump is emptying; The outlet of described the second ball valve is connected to the import of solenoid valve by pipeline, the outlet of solenoid valve connects negative pressure recycling machine by pipeline, and described negative pressure recycling machine is connected the import of compressor by the second safety check with pipeline; The inlet end of described the first safety check is connected to by pipeline on the inlet pipeline of magnet valve, and the outlet side of the first safety check is connected on the inlet pipeline of compressor by pipeline.
The import of above-mentioned the second safety check is connected with the outlet of negative pressure recycling machine by pipeline, and the outlet of the second safety check is connected with the import of compressor by pipeline.
Above-mentioned first and second vacuum pump is oil-free vacuum pump.
Above-mentioned negative pressure recycling machine is oil-free negative pressure recycling machine.
Above-mentioned compressor is oil-free compressor.
Complete series oil-free SF6 gas of the present invention reclaims inflator and adopts oil-free equipment, can guarantee that SF6 gas no longer contacts with oil, from principle, has stopped the impact of oil content on SF6 GAS QUALITY.Complete series oil-free SF6 gas of the present invention reclaims inflator and adopts oil-free equipment, do not need lubricant oil, do not need running check oil level or oil change more, safeguard simple, guaranteed that SF6 gas reclaims in charge operation process, no matter subjective or objectively fault, can not pollute SF6 gas because of oil content.Thereby saved a large amount of human and material resources, financial resources, guaranteed project installation progress, can create great economy and social benefit.
Accompanying drawing explanation
Fig. 1 is equipment connection schematic diagram of the present invention;
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Referring to Fig. 1, of the present invention kind of complete series oil-free SF6 gas reclaims inflator, comprises first and second vacuum pump 1,2, first and second ball valve V1, V2, first and second safety check V21, V22, negative pressure recycling machine 3, compressor 4, solenoid valve V31, safety exhaust V41 and pipeline; The import of first and second ball valve V1, V2 connects by pipeline, the outlet of the first ball valve V1 connects the suction end of the first vacuum pump 1, the exhaust end of the first vacuum pump 1 connects the suction end of the second vacuum pump 2 by pipeline, the inlet end of safety exhaust V41 is connected on the pipeline between first and second vacuum pump 1,2 by pipeline, and the exhaust end of the second vacuum pump 2 is emptying; The outlet of the second ball valve V2 is connected to the import of solenoid valve V31 by pipeline, the outlet of solenoid valve V31 connects negative pressure recycling machine 3 by pipeline, and negative pressure recycling machine 3 is connected the import of compressor 4 by the second safety check V22 with pipeline; The inlet end of the first safety check V21 is connected to by pipeline on the inlet pipeline of magnet valve V31, and the first safety check V21 outlet side is connected on the inlet pipeline of compressor 4 by pipeline.The import of described the second safety check V22 is connected with the outlet of negative pressure recycling machine 3 by pipeline, and the outlet of the second safety check V22 is connected with the import of compressor 4 by pipeline.
In the present invention, for SF6 gas and oil are isolated completely, first and second vacuum pump the 1, the 2nd, oil-free vacuum pump.Negative pressure recycling machine 3 is oil-free negative pressure recycling machines.Compressor 4 is oil-free compressors.
Working procedure of the present invention is as follows:
The effect of safety exhaust V41: while just starting to vacuumize, a large amount of gas is extracted out by the first vacuum pump 1, is now directly discharged to atmosphere by safety exhaust V41.When being taken out container and reach certain vacuum, the first vacuum pump 1 air displacement significantly reduces, and safety exhaust V41 closes, and the gas of its eliminating is extracted out by the second vacuum pump 2, then is discharged in atmosphere.The intakeport of final the second vacuum pump 2 can make the relief opening of the first vacuum pump 1 reach lower vacuum, and the intakeport that makes the first vacuum pump 1 is reached to higher level of vacuum.
When recovering device normally reclaims, open the second ball valve V2, start compressor 4, now SF6 gas by the second ball valve V2, the first safety check V21, compressor 4, finally by the outlet of compressor 4, discharged.When the suction port pressure of compressor 4 drops to 0 gauge pressure, pass through electric control system, opens solenoid valve V31, unlatching negative pressure recycling machine 3, under the suction of negative pressure recycling machine 3 and pressurization discharge effect, SF6 gas by the second ball valve V2, solenoid valve V31, negative pressure recycling machine 3, the second safety check V22, compressor 4, finally by the outlet of compressor 4, discharged.Now the relief opening of the first safety check V21 and the second safety check V22 is high pressure conditions, the suction port of the first safety check V21 is low-pressure state, so SF6 gas is can oppositely not pass through the first safety check V21, thereby reached the series operation of negative pressure recycling machine 3 with compressor 4, made the more thorough of SF6 gas recovery.
The present invention adopts vacuum pump 1,2 to be oil-free vacuum pump, can select eddy type or diaphragm type oil-free vacuum pump.Negative pressure recycling machine 3 is also oil-free negative pressure recycling machine, mostly is eddy type, also has diaphragm type.Compressor 4 is also oil-free compressor, and it is piston type.
Claims (5)
1. a complete series oil-free SF6 gas reclaims inflator, it is characterized in that, comprise first and second vacuum pump (1,2), first and second ball valve (V1, V2), first and second safety check (V21, V22), negative pressure recycling machine (3), compressor (4), solenoid valve (V31), safety exhaust (V41) and pipeline; The import of described first and second ball valve (V1, V2) connects by pipeline, the outlet of the first ball valve (V1) connects the suction end of the first vacuum pump (1), the exhaust end of the first vacuum pump (1) connects the suction end of the second vacuum pump (2) by pipeline, the inlet end of described safety exhaust (V41) is connected on the pipeline between first and second vacuum pump (1,2) by pipeline, and the exhaust end of described the second vacuum pump (2) is emptying; The outlet of described the second ball valve (V2) is connected to the import of solenoid valve (V31) by pipeline, the outlet of solenoid valve (V31) connects negative pressure recycling machine (3) by pipeline, and described negative pressure recycling machine (3) is connected the import of compressor (4) by the second safety check (V22) with pipeline; The inlet end of described the first safety check (V21) is connected to by pipeline on the inlet pipeline of magnet valve (V31), and the outlet side of the first safety check (V21) is connected on the inlet pipeline of compressor (4) by pipeline.
2. complete series oil-free SF6 gas according to claim 1 reclaims inflator, it is characterized in that, the import of described the second safety check (V22) is connected with the outlet of negative pressure recycling machine (3) by pipeline, and the outlet of the second safety check (V22) is connected with the import of compressor (4) by pipeline.
3. complete series oil-free SF6 gas according to claim 1 reclaims inflator, it is characterized in that, described first and second vacuum pump (1,2) is oil-free vacuum pump.
4. complete series oil-free SF6 gas according to claim 1 reclaims inflator, it is characterized in that, described negative pressure recycling machine (3) is oil-free negative pressure recycling machine.
5. complete series oil-free SF6 gas according to claim 1 reclaims inflator, it is characterized in that, described compressor (4) is oil-free compressor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210218541.2A CN103511832A (en) | 2012-06-28 | 2012-06-28 | Whole-series oil-free SF6 gas recovering and filling device |
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| CN201210218541.2A CN103511832A (en) | 2012-06-28 | 2012-06-28 | Whole-series oil-free SF6 gas recovering and filling device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883878A (en) * | 2014-03-26 | 2014-06-25 | 沈阳工业大学 | Device and method for generating SF6 gas flowing at high speed |
| CN104482400A (en) * | 2014-11-14 | 2015-04-01 | 国家电网公司 | Portable SF6 gas recovery device |
| CN104763874A (en) * | 2015-04-15 | 2015-07-08 | 四川菲博斯科技有限责任公司 | SF6 gas recovering system |
| CN105084325A (en) * | 2015-07-23 | 2015-11-25 | 刘静涛 | Sulfur hexafluoride recovery device and sulfur hexafluoride recovery vehicle |
| CN108338801A (en) * | 2017-01-25 | 2018-07-31 | 通用电气公司 | A kind of vaccum-pumping equipment |
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| WO2008021000A1 (en) * | 2006-08-10 | 2008-02-21 | The Boc Group, Inc. | Sulfur hexafluoride recycling system and method for recycling sulfur hexafluoride |
| CN102092686A (en) * | 2009-12-10 | 2011-06-15 | 上海莫克电子技术有限公司 | Sf6 gas recycling device |
| CN102107856A (en) * | 2009-12-24 | 2011-06-29 | 上海莫克电子技术有限公司 | SF6 (sulfur hexafluoride) gas recovery vehicle |
| CN202992648U (en) * | 2012-06-28 | 2013-06-12 | 陕西冠笛通用电气有限公司 | Totally no-oil SF6 gas recovery inflation device |
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2012
- 2012-06-28 CN CN201210218541.2A patent/CN103511832A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008021000A1 (en) * | 2006-08-10 | 2008-02-21 | The Boc Group, Inc. | Sulfur hexafluoride recycling system and method for recycling sulfur hexafluoride |
| CN102092686A (en) * | 2009-12-10 | 2011-06-15 | 上海莫克电子技术有限公司 | Sf6 gas recycling device |
| CN102107856A (en) * | 2009-12-24 | 2011-06-29 | 上海莫克电子技术有限公司 | SF6 (sulfur hexafluoride) gas recovery vehicle |
| CN202992648U (en) * | 2012-06-28 | 2013-06-12 | 陕西冠笛通用电气有限公司 | Totally no-oil SF6 gas recovery inflation device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883878A (en) * | 2014-03-26 | 2014-06-25 | 沈阳工业大学 | Device and method for generating SF6 gas flowing at high speed |
| CN104482400A (en) * | 2014-11-14 | 2015-04-01 | 国家电网公司 | Portable SF6 gas recovery device |
| CN104763874A (en) * | 2015-04-15 | 2015-07-08 | 四川菲博斯科技有限责任公司 | SF6 gas recovering system |
| CN104763874B (en) * | 2015-04-15 | 2016-06-08 | 四川菲博斯科技有限责任公司 | Sf6 gas recovery system |
| CN105084325A (en) * | 2015-07-23 | 2015-11-25 | 刘静涛 | Sulfur hexafluoride recovery device and sulfur hexafluoride recovery vehicle |
| CN105084325B (en) * | 2015-07-23 | 2017-11-10 | 刘静涛 | A kind of sulfur hexafluoride retracting device and sulfur hexafluoride recovery vehicle |
| CN108338801A (en) * | 2017-01-25 | 2018-07-31 | 通用电气公司 | A kind of vaccum-pumping equipment |
| CN108338801B (en) * | 2017-01-25 | 2023-12-29 | 通用电气公司 | Vacuumizing equipment |
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Application publication date: 20140115 |