CN2260228Y - Apparatus for filling or recovering gas SF6 of oil-free type - Google Patents
Apparatus for filling or recovering gas SF6 of oil-free type Download PDFInfo
- Publication number
- CN2260228Y CN2260228Y CN 95214637 CN95214637U CN2260228Y CN 2260228 Y CN2260228 Y CN 2260228Y CN 95214637 CN95214637 CN 95214637 CN 95214637 U CN95214637 U CN 95214637U CN 2260228 Y CN2260228 Y CN 2260228Y
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- CN
- China
- Prior art keywords
- gas
- oil
- filling
- vacuum pump
- recovering
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Abstract
The utility model relates to an apparatus for filling and recovering gas, particularly for filling and recovering rare gas or valuable gas (such as SF6 gas). If oil fog is mixed in SF6 gas used in electrical engineering industry, the insulation and the arc blow-out capability of high voltage electrical apparatus production can be effected directly, and even the expensive SF6 gas need to be abandoned. The utility model adopts a non-oil compressor set and a non-oil vacuum pump set, and a valve which is directly communicated with the atmosphere is positioned on the front end of the vacuum pump set, so a non-oil apparatus for filling and recovering oil-free SF6 gas is formed. Evacuation, gas filling and gas recovery can be totally guaranteed under oil-free condition, no oil fouling risk exists, and gas recovery is more complete.
Description
The utility model is a kind of filling or recovering gas device, particularly charging and reclaiming rare or noble gas.Be mainly used in SF in electrician trade
6The charging and reclaiming of gas.Because SF
6Gas is the gas than valuable hundreds of times such as other industrial gas such as oxygen, so improve the recovery rate, guarantees the pure not contaminated crucial meaning that has of gas.
The court had once applied for gas filling and recovering device utility model patent (CN86207843U) in 1986, by compressor, vacuum pump, refrigeration system, heater, intermediate storage tank, control valve and pipeline are formed.Removing in this system has an oil-free vacuum pump to participate in SF
6Outside the recovery Deng gas, also have the logical mechanical type vacuum pump of a Daepori before recovery, gas holder and full machine system to be vacuumized.As Fig. 2,18 is conventional machinery formula vacuum pump.
Also have a kind of filling or recovering gas device, conventional machinery formula vacuum pump generally vacuumizes the work except that participating in, and participates in reclaiming system work simultaneously.This device is when reclaiming gas, and the gas in the emptying container improves the recovery rate, but can make the mist of oil of machine oil or oil gas enter SF unavoidably preferably
6Gas influences its purity.Its typical case's representative as Japan add the ground WT20-11GC type SF6 filling or recovering gas device that the ironworker produced.SF
6Sneak into mist of oil in the gas and will directly influence the insulation and the arc extinction performance of high voltage electric appliance.Even make expensive SF
6Gas is scrapped.
The utility model provides a kind of completely without oily SF
6Filling or recovering gas device guarantees that vacuumizing, inflate and reclaim gas all carries out under no oil condition, no greasy dirt danger, and also it is more thorough to reclaim gas, reclaims end pressure and is no more than 10Pa, improves and reclaims economic effect.
The purpose of this utility model is to realize like this.At aforementioned similar SF
6Cancellation conventional machinery formula vacuum pump adopts oilless compressor group and oil-free vacuum pump group in the filling or recovering gas device system, and places the directly logical atmosphere of a valve 15 at vacuum pump group front end, referring to Fig. 1.The vacuum pump group had both participated in gas and had reclaimed, and bore the task that storage tank and all system are vacuumized simultaneously.Its working principle and mode will describe in detail in the back.
The utility model compared with prior art, advantage is tangible.
1, reclaims thoroughly.Reclaim residual voltage and be reduced to 10Pa, to noble gas such as SF from nearly 2000Pa
6The recovery of gas, its economic effect are significant.And, reduced SF because it is low to reclaim the back residual voltage
6Gas is to the pollution of environment.
2, save general mechanical type vacuum pump, thereby avoided vacuum pump because of accident or have a power failure suddenly and cause pumping fluid to pour in down a chimney SF
6The major accident of electrical equipment inside.
3, guaranteed recovery SF
6The purity of gas has improved SF
6Gas recharges the reliability of back high voltage electric appliance.
Now details are as follows to working principle of the present utility model, referring to Fig. 1.
4 is compressor bank among Fig. 1, and its lubrication system is separated with gas compression system, when guaranteeing gas compression not by oil pollution.Can adopt diaphragm type compressor, oil-free lubrication piston compressor or other non-lubricated compressors for this reason.8 is the vacuum pump group, and its lubrication system is separated with the gas pumped vacuum systems.When guaranteeing that gas reclaims and vacuumizes not by oil pollution.The series parallel connection operation as required of this vacuum pump group.Can adopt nothing oil oil-sealed rotary pump or other oil-free vacuum pumps of sylphon seal for this reason.Vacuum pump group front is provided with a valve 15, and directly logical atmosphere is done the time spent when this vacuum pump group replaces former mechanical type vacuum pump, promptly by valve 15 direct emptyings.
Among Fig. 1,1 is storage tank, and 14 is SF
6Electrical equipment or container.3 is heat exchanger or refrigeration system, and 5 is purifier, and 6 is knock out drum, and 7 for surveying vacuum instrumentation, and 10 is filter, and other are all kinds of valves as 2,9,11,12,13,15,16.
Now that the working principle division is as follows:
One, gas charges.Promptly from high pressure storage tank 1 to SF
6 Container 14 charges gas, and its step is as follows:
(a) container 14 is vacuumized. Open valve 9,13,15, start oil-free vacuum pump group 8.
(b) vacuumize and finish, each valve cuts out termination of pumping.
(c) to container 14 inflations. Open valve 11,12,13,2, the gas in the high pressure storage tank 1 passes through heat exchanger 3, purifier 5, and dust and ingress filter device 10 enter container 14.
(d) reach requirement after, close each valve one by one, gas charges and finishes.
Two, reclaim.Just the gas in the container 14 is reclaimed to storage tank 1, its step is as follows:
(a) storage tank 1 is vacuumized. Open valve 9,11,12,2,15,16, start oil-free vacuum pump group 8.
(b) vacuumize and finish, shut each valve, termination of pumping.
If storage tank is not new, inner existing working gas can be exempted this operation.
(c) when storage tank 1 internal pressure is lower than container 14 internal pressures, open valve 13,11,12,2, working gas flows to storage tank 1 by container 14, very fast the two gas pressure balancing.
(d) behind the two gas pressure balancing, cut-off valve 12 starts compressor bank 4, and carry out gas and reclaim, when container 14 internal pressures are lower than 0.1MPa (absolute pressure), cut-off valve 11.
(e) open valve 9,7, restart oil-free vacuum pump group 8, the compressor bank 4 and oil-free vacuum pump group is online reclaims, end pressure is lower than 10Pa in container 14, and recovery operation ends.Close each valve and two units.
Claims (2)
1, a kind of completely without oily SF
6Filling or recovering gas device, form by compressor, vacuum pump, heat exchanger, treater, knock out drum, valve and pipeline, it is characterized in that adopting oilless compressor group and oil-free vacuum pump group to form main system, and before the oil-free vacuum pump group, connect a direct open to atmosphere valve.
2, as claimed in claim 1 completely without oily SF
6Filling or recovering gas device is characterized in that the vacuum pump group can the serial or parallel connection use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95214637 CN2260228Y (en) | 1995-06-13 | 1995-06-13 | Apparatus for filling or recovering gas SF6 of oil-free type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95214637 CN2260228Y (en) | 1995-06-13 | 1995-06-13 | Apparatus for filling or recovering gas SF6 of oil-free type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2260228Y true CN2260228Y (en) | 1997-08-20 |
Family
ID=33864208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95214637 Expired - Fee Related CN2260228Y (en) | 1995-06-13 | 1995-06-13 | Apparatus for filling or recovering gas SF6 of oil-free type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2260228Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419334C (en) * | 2005-06-03 | 2008-09-17 | 阿耐斯特岩田株式会社 | Method of feeding an inert gas and a system therefor |
| CN101857111A (en) * | 2010-05-21 | 2010-10-13 | 北京航空航天大学 | Vacuum pumping system design for vacuum container volume 200m<3> grade |
| CN101877287A (en) * | 2010-06-10 | 2010-11-03 | 安徽省电力公司淮北供电公司 | Site-measurement tail gas recovering device of sulfur hexafluoride equipment |
| CN101408277B (en) * | 2008-07-21 | 2012-03-07 | 上海第二工业大学 | Trace gas injection equipment under ultra-high vacuum environment |
| CN102563341A (en) * | 2010-12-09 | 2012-07-11 | 河南省电力公司三门峡供电公司 | SF6 (sulphur hexafluoride) gas combined charging and discharging device |
| CN102768217A (en) * | 2011-05-04 | 2012-11-07 | 吉林亚新工程检测有限责任公司 | X-ray flaw detector generator pipe barrel SF6 gas vacuum-pumping inflator |
| CN101725502B (en) * | 2009-12-11 | 2013-03-20 | 北京航空航天大学 | Vacuum pumping system design for vacuum container |
| CN103743602A (en) * | 2013-11-26 | 2014-04-23 | 广西电网公司电力科学研究院 | Gas circulating apparatus applied to SF6 decomposer on-line monitoring equipment |
| CN104110574A (en) * | 2014-07-29 | 2014-10-22 | 江苏克劳特低温技术有限公司 | Cryogenic gas condensing and recycling system and method |
| CN105156886A (en) * | 2015-09-16 | 2015-12-16 | 四川菲博斯科技有限责任公司 | Automatic SF6 gas-filling device of electrical apparatus |
-
1995
- 1995-06-13 CN CN 95214637 patent/CN2260228Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419334C (en) * | 2005-06-03 | 2008-09-17 | 阿耐斯特岩田株式会社 | Method of feeding an inert gas and a system therefor |
| CN101408277B (en) * | 2008-07-21 | 2012-03-07 | 上海第二工业大学 | Trace gas injection equipment under ultra-high vacuum environment |
| CN101725502B (en) * | 2009-12-11 | 2013-03-20 | 北京航空航天大学 | Vacuum pumping system design for vacuum container |
| CN101857111A (en) * | 2010-05-21 | 2010-10-13 | 北京航空航天大学 | Vacuum pumping system design for vacuum container volume 200m<3> grade |
| CN101857111B (en) * | 2010-05-21 | 2013-05-15 | 北京航空航天大学 | Vacuum pumping system design for vacuum container volume 200m<3> grade |
| CN101877287A (en) * | 2010-06-10 | 2010-11-03 | 安徽省电力公司淮北供电公司 | Site-measurement tail gas recovering device of sulfur hexafluoride equipment |
| CN102563341A (en) * | 2010-12-09 | 2012-07-11 | 河南省电力公司三门峡供电公司 | SF6 (sulphur hexafluoride) gas combined charging and discharging device |
| CN102563341B (en) * | 2010-12-09 | 2013-08-14 | 河南省电力公司三门峡供电公司 | SF6 (sulphur hexafluoride) gas combined charging and discharging device |
| CN102768217A (en) * | 2011-05-04 | 2012-11-07 | 吉林亚新工程检测有限责任公司 | X-ray flaw detector generator pipe barrel SF6 gas vacuum-pumping inflator |
| CN103743602A (en) * | 2013-11-26 | 2014-04-23 | 广西电网公司电力科学研究院 | Gas circulating apparatus applied to SF6 decomposer on-line monitoring equipment |
| CN104110574A (en) * | 2014-07-29 | 2014-10-22 | 江苏克劳特低温技术有限公司 | Cryogenic gas condensing and recycling system and method |
| CN104110574B (en) * | 2014-07-29 | 2016-08-31 | 江苏克劳特低温技术有限公司 | A kind of cryogenic gas condensate recovery system and method thereof |
| CN105156886A (en) * | 2015-09-16 | 2015-12-16 | 四川菲博斯科技有限责任公司 | Automatic SF6 gas-filling device of electrical apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |