CN105003820A - Inflation apparatus and inflation method of GIS switch - Google Patents

Inflation apparatus and inflation method of GIS switch Download PDF

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Publication number
CN105003820A
CN105003820A CN201410150368.6A CN201410150368A CN105003820A CN 105003820 A CN105003820 A CN 105003820A CN 201410150368 A CN201410150368 A CN 201410150368A CN 105003820 A CN105003820 A CN 105003820A
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China
Prior art keywords
air
capsule
valve
gas
inflation
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CN201410150368.6A
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Chinese (zh)
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CN105003820B (en
Inventor
吴鑫杰
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Ningbo Baoxin Stainless Steel Co Ltd
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Ningbo Baoxin Stainless Steel Co Ltd
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Abstract

The invention relates to an inflation apparatus and an inflation method of a GIS switch. The inflation apparatus comprises a SF6 gas cylinder and an inflation pipeline, and is characterized in that the inflation pipeline is provided with a first tee and a second tee, the first tee is arranged on the inflation pipeline close to the gas outlet end of the SF6 gas cylinder and is communicated with an air pipeline connected with a purge gas, the air pipeline is provided with an air valve, the second tee is arranged on the inflation pipeline close to the gas inlet end of a GIS switch gas barrier and is connected with a capsule for recovering the remaining SF6 gas, the connection pipeline of the second tee and the capsule is provided with a capsule valve, a pressure reducing valve is arranged between the first tee and the gas outlet end of the SF6 gas cylinder, and a gas barrier valve is arranged between the second tee and the GIS switch gas barrier. According to the present invention, the inflation apparatus has characteristics of simple structure and easy, the inflation method has characteristics of simple operation, safety and environmental protection, the problems that the air enters the GIS switch during the inflation process and the remaining SF6 gas is discharged into the atmosphere are effectively solved, and the apparatus and the method can be used for SF6 gas inflation of all GIS switches.

Description

The inflator of GIS switch and inflation method thereof
Technical field
The present invention relates to a kind of GIS switch S F 6inflator and inflation method thereof,
Background technique
In recent years, with SF 6gas is used widely as the electrical equipment of insulating medium, Gas InsulatedSwitchgear gas insulated combined electric appliance equipment (being called for short GIS switch) is by high pressure elements combinations such as bus, circuit breaker, CT, PT isolating switch, lightning arresters together, is usually also high voltage distribution installation.The advantages such as GIS switch has reliability and Security is high, install little, the long service life of floor space, the repair cycle is long, maintenance workload is little, applied widely, are more and more applied in the above electric substation of electric pressure 35KV.GIS switch is according to working principle and working environment, and the multiple air bound of indoor design, is filled with SF 6gas.
SF 6gas is colourless, tasteless, nontoxic, nonflammable inert gas, and density is five times of air, has excellent insulating property, is a kind of desirable arc-extinguishing medium.But work as SF 6when water content is more in gas, two aspect harm can be produced: one is SF 6the electric arc analyte of gas can produce a lot of harmful matter, as SOF under moisture participates in 2, HF etc., thus corrosion circuit breaker internal structural material threaten maintainer's safety; Two be water content too much time, due to hydrogenesis, moistening insulating surface, will make its insulating strength decline, threaten safe operation.
Current GIS switch S F 6the inflation method of gas adopts SF 6gas cylinder is directly inflated GIS switch, and SF in GIS switch 6the too much main cause of gas water content is exactly each SF 6all a certain amount of air can be brought into, again containing a certain amount of moisture in air during gas inflated; When moisture content is many, harm will be produced.In addition, the SF in air 6be a reason of global warming, therefore forbid directly to airborne release SF 6gas.
Therefore need to improve existing inflation method, design a kind of new SF 6gas inflator, to have solved in gas replenishment process air in loading line and has entered loading line residue SF after GIS switch and inflation 6gas discharging atmospheric issues.
Summary of the invention
First technical problem to be solved by this invention is to provide the inflator of simple, the easy to operate GIS switch of a kind of structure, and air in gas replenishment process can be avoided to enter GIS switch and residue SF 6gas discharging air, not only ensures the normal operation of GIS switch, and use safety environmental protection.
Second technical problem to be solved by this invention is to provide a kind of inflation method of simple to operation, GIS switch that using effect is good, can effectively avoid air in gas replenishment process to enter GIS switch and residue SF 6gas discharging air, not only ensures the normal operation of GIS switch, and use safety environmental protection.
The present invention solves the technological scheme that above-mentioned first technical problem adopt: a kind of inflator of GIS switch, comprises SF 6gas cylinder and by SF 6the loading line that gas cylinder is connected with GIS switch air bound, is characterized in that: described loading line is provided with the first three-way pipe and the second three-way pipe, and wherein the first three-way pipe is arranged near SF 6on the loading line of the outlet side of gas cylinder, be connected with the air pipe line being connected purge gas, air pipe line is provided with air valve; Second three-way pipe is arranged on the loading line of the air inlet end of GIS switch air bound, remains SF with for reclaiming 6the capsule of gas is connected, and the connecting pipeline of the second three-way pipe and capsule is provided with capsule valve, at the first three-way pipe and SF 6be provided with reduction valve between the outlet side of gas cylinder, between the second three-way pipe and the air inlet end of GIS switch air bound, be provided with air bound valve.
As improvement, the inflation line between described first three-way pipe and the second three-way pipe is provided with pressure gauge.
As improvement, described capsule is spherical soft capsule, is to adopt transparent soft plastic or soft rubber to make, and make to draw materials conveniently, cost is cheap.
As improvement, described purge gas is pressurized air, and described air pipe line adopts transparent soft plastic pipe or metallic hose.Not only operation site gets gas conveniently, but also can improve the Security to operator.
Improve, described loading line adopts transparent soft plastic pipe or metallic hose, and the length of loading line is not less than 5 meters again.
The present invention solves the technological scheme that above-mentioned second technical problem adopt: a kind of inflation method of GIS switch, is characterized in that: adopt above-mentioned inflator to inflate, step is followed successively by:
1) close reduction valve, air valve, air bound valve, capsule valve, connect pipeline by inflator;
2) extrude capsule, after allowing its inner air discharge, be connected with capsule valve;
3) first open reduction valve and capsule valve, then open SF 6gas cylinder, exitted after 15 ~ 25 seconds, closed capsule valve, made air in loading line by SF 6air scavenge has arrived in capsule;
4) then open air bound valve, carry out GIS switch S F 6inflation, when equal pressure list index has arrived air bound authorized pressure, closes SF6 gas cylinder, air bound valve and reduction valve.
5) open capsule valve and air valve, after pressurized air purges 15 ~ 25 seconds, close capsule valve and air valve, make remaining SF in loading line 6gas has been rejected in capsule by pressurized air, SF will be housed 6the capsule of gas is delivered to laboratory and is processed.
As improvement, described capsule is spherical soft capsule, is to adopt transparent soft plastic or soft rubber to make, and when after capsule gassy in step 3) and step 5), should close capsule valve, gassiness capsule is changed another new capsule of installation and carries out splendid attire.
As improvement, described air pipe line adopts transparent soft plastic pipe or metallic hose.
Improve, described loading line adopts transparent soft plastic pipe or metallic hose, and the length of loading line is not less than 5 meters again.
Compared with prior art, the invention has the advantages that: two three-way pipes are installed on loading line and connect air pipe line and capsule respectively, between air pipe line and capsule, just form a purge passage like this, by the air in loading line and remaining SF 6air scavenge has arrived in capsule, efficiently solves air in gas replenishment process and enters GIS switch and residue SF 6the problem of gas discharging air, purges remaining SF in addition 6gas adopts pressurized air, and not only operation site gets gas conveniently, but also can improve the Security to operator.Inflator structure of the present invention is simple, easy to use, inflation method safety simple to operate, not only ensure that the normal operation of GIS switch, and use safety environmental protection, can be applicable to all GIS switch S F 6in gas inflated.
Accompanying drawing explanation
Fig. 1 is the structural representation of inflator of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in Figure 1, the GIS switch S F of the present embodiment 6the inflator of gas, comprises SF 6gas cylinder 2, GIS switch air bound 1 and by SF 6the loading line 3 that gas cylinder 2 is connected with GIS switch air bound 1, pressure gauge 8, air bound valve 10 and reduction valve 9, loading line 2 is provided with the first three-way pipe 5 and the second three-way pipe 4, and wherein the first three-way pipe 5 is arranged near SF 6on the loading line 3 of the outlet side of gas cylinder 2, be connected with the air pipe line 6 being connected purge gas, air pipe line 6 is provided with air valve 61; Second three-way pipe 4 is arranged on the loading line 3 of the air inlet end of GIS switch air bound 1, remains SF with for reclaiming 6the capsule 7 of gas is connected, and the second three-way pipe 4 with the connecting pipeline of capsule 7 are provided with capsule valve 71, and reduction valve 9 is arranged on the first three-way pipe 5 and SF 6between the outlet side of gas cylinder 2, air bound valve 10 is arranged between the air inlet end of the second three-way pipe 4 and GIS switch air bound 1, and pressure gauge 8 is arranged in the inflation line 2 between the first three-way pipe 5 and the second three-way pipe 4; So just form two " purge passage " and " filling channel " two passages, " purge passage " is made up of air pipe line 6, air valve 61, pressure gauge 8, capsule valve 71 and capsule 7; " filling channel " is by SF 6gas cylinder 2, reduction valve 9, pressure gauge 8, loading line 3 and air bound valve 10 form; Capsule 7 is spherical soft capsule, is to adopt transparent soft plastic or soft rubber to make, and make to draw materials conveniently, cost is cheap; Purge gas is pressurized air, not only operation site gets gas conveniently, but also the Security that can improve operator, air pipe line 6 adopts transparent soft plastic pipe or metallic hose, loading line 3 adopts transparent soft plastic pipe or metallic hose, because GIS switch has multiple air bound, the length of loading line 3 is generally not less than 5 meters.
GIS switch S F 6the inflation method of gas, concrete operation step is:
(1) close reduction valve 9, air valve 61, air bound valve 10, capsule valve 71, connect pipeline by Fig. 1.
(2) extrude spherical soft capsule 7, after allowing its inner air discharge, be connected with capsule valve 71.
(3) first open reduction valve 9 and capsule valve 71, then open SF 6gas cylinder 2, exitted after 20 seconds, closed capsule valve 71.Air in such loading line is just by SF 6air scavenge has arrived in capsule 7, avoids air in loading line 3 and enters GIS switch, solve SF in GIS switch 6the problem that gas moisture content is too much.
(4) open air bound valve 10, carry out GIS switch S F 6inflation, when equal pressure table 8 pointer has arrived air bound authorized pressure, closes SF 6gas cylinder 2, air bound valve 10 and reduction valve 9.
(5) open capsule valve 71 and air valve 61, after pressurized air purges 20 seconds, close capsule valve 71 and air valve 61.Such loading line 3 remains SF 6gas has just been rejected in capsule 7 by pressurized air, and capsule 7 is delivered to laboratory and processed.When after a spherical soft capsule gassy, after closing capsule valve, another new capsule 7 can be installed very easily and carry out splendid attire.Which solves residue SF in loading line 3 6gas is directly discharged into the problem of air.
Implementation result
Adopt GIS switch S F of the present invention 6after gas inflator is inflated, simple, convenient, safety, environmental protection, well solve air in gas replenishment process and enter GIS switch and residue SF 6this two problems of gas discharging air, respond well.

Claims (9)

1. an inflator for GIS switch, comprises SF 6gas cylinder and by SF 6the loading line that gas cylinder is connected with GIS switch air bound, is characterized in that: described loading line is provided with the first three-way pipe and the second three-way pipe, and wherein the first three-way pipe is arranged near SF 6on the loading line of the outlet side of gas cylinder, be connected with the air pipe line being connected purge gas, air pipe line is provided with air valve; Second three-way pipe is arranged on the loading line of the air inlet end of GIS switch air bound, remains SF with for reclaiming 6the capsule of gas is connected, and the connecting pipeline of the second three-way pipe and capsule is provided with capsule valve, at the first three-way pipe and SF 6be provided with reduction valve between the outlet side of gas cylinder, between the second three-way pipe and the air inlet end of GIS switch air bound, be provided with air bound valve.
2. inflator according to claim 1, is characterized in that: the inflation line between described first three-way pipe and the second three-way pipe is provided with pressure gauge.
3. inflator according to claim 1, is characterized in that: described capsule is spherical soft capsule, is to adopt transparent soft plastic or soft rubber to make.
4. inflator according to claim 1, is characterized in that: described purge gas is pressurized air, and described air pipe line adopts transparent soft plastic pipe or metallic hose.
5. inflator according to claim 1, is characterized in that: described loading line adopts transparent soft plastic pipe or metallic hose, and the length of loading line is not less than 5 meters.
6. an inflation method for GIS switch, is characterized in that: adopt inflator according to claim 1 to inflate, step is followed successively by:
1) close reduction valve, air valve, air bound valve, capsule valve, connect pipeline by inflator;
2) extrude capsule, after allowing its inner air discharge, be connected with capsule valve;
3) first open reduction valve and capsule valve, then open SF 6gas cylinder, exitted after 15 ~ 25 seconds, closed capsule valve, made the air in loading line arrived in capsule by SF6 air scavenge;
4) then open air bound valve, carry out GIS switch S F 6inflation, when equal pressure list index has arrived air bound authorized pressure, closes SF6 gas cylinder, air bound valve and reduction valve.
5) open capsule valve and air valve, after pressurized air purges 15 ~ 25 seconds, close capsule valve and air valve, make remaining SF in loading line 6gas has been rejected in capsule by pressurized air, SF will be housed 6the capsule of gas is delivered to laboratory and is processed.
7. inflation method according to claim 6, it is characterized in that: described capsule is spherical soft capsule, adopt transparent soft plastic or soft rubber to make, when after capsule gassy in step 3) and step 5), should capsule valve be closed, gassiness capsule be changed another new capsule of installation and carry out splendid attire.
8. inflation method according to claim 6, is characterized in that: described air pipe line adopts transparent soft plastic pipe or metallic hose.
9. inflation method according to claim 6, is characterized in that: described loading line adopts transparent soft plastic pipe or metallic hose, and the length of loading line is not less than 5 meters.
CN201410150368.6A 2014-04-15 2014-04-15 The aerating device and its inflation method of GIS switches Active CN105003820B (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105499017A (en) * 2016-01-25 2016-04-20 长春理工大学 Electrospray water-feeding insulated water valve
CN114234037A (en) * 2021-12-27 2022-03-25 广东电网有限责任公司 SF (sulfur hexafluoride)6Charging device with uninterrupted switch

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86207843U (en) * 1986-10-11 1987-09-02 机械工业部第七设计研究院 Gasfilling and recollecting apparatus
WO2006015953A1 (en) * 2004-08-11 2006-02-16 L'Air Liquide Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude Cylinder valve
CN102352957A (en) * 2011-10-13 2012-02-15 周平 Electronic grade ultra pure ammonia automatic filling device and method
CN102921338A (en) * 2012-10-26 2013-02-13 上海天科化工检测有限公司 Preparation device of trace component in normal-pressure balance stage-by-stage constant volume type gases

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86207843U (en) * 1986-10-11 1987-09-02 机械工业部第七设计研究院 Gasfilling and recollecting apparatus
WO2006015953A1 (en) * 2004-08-11 2006-02-16 L'Air Liquide Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude Cylinder valve
JP2006052787A (en) * 2004-08-11 2006-02-23 Japan Air Gases Ltd Container valve
CN102352957A (en) * 2011-10-13 2012-02-15 周平 Electronic grade ultra pure ammonia automatic filling device and method
CN102921338A (en) * 2012-10-26 2013-02-13 上海天科化工检测有限公司 Preparation device of trace component in normal-pressure balance stage-by-stage constant volume type gases

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105499017A (en) * 2016-01-25 2016-04-20 长春理工大学 Electrospray water-feeding insulated water valve
CN105499017B (en) * 2016-01-25 2017-12-01 长春理工大学 Electron spray feedwater insulation water valve
CN114234037A (en) * 2021-12-27 2022-03-25 广东电网有限责任公司 SF (sulfur hexafluoride)6Charging device with uninterrupted switch
CN114234037B (en) * 2021-12-27 2024-01-05 广东电网有限责任公司 SF (sulfur hexafluoride) 6 Switch uninterrupted inflation device

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