CN103742782B - A kind of electric power charged intelligent making-up air device of SF6 mutual inductor and supplementing method for air thereof - Google Patents
A kind of electric power charged intelligent making-up air device of SF6 mutual inductor and supplementing method for air thereof Download PDFInfo
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- CN103742782B CN103742782B CN201410040601.5A CN201410040601A CN103742782B CN 103742782 B CN103742782 B CN 103742782B CN 201410040601 A CN201410040601 A CN 201410040601A CN 103742782 B CN103742782 B CN 103742782B
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000001502 supplementing effect Effects 0.000 title claims description 7
- 238000007599 discharging Methods 0.000 claims abstract description 20
- 238000005273 aeration Methods 0.000 claims abstract description 18
- 230000009467 reduction Effects 0.000 claims abstract description 18
- 241000168254 Siro Species 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000009987 spinning Methods 0.000 claims description 3
- 230000007812 deficiency Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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Abstract
The present invention relates to the charged intelligent making-up air device of a kind of electric power SF6 mutual inductor and method, this device comprises the gas cylinder having SF6 gas, three connecting pipes and tonifying Qi connecting leg, the outlet of described gas cylinder is provided with reduction valve, the supervisor of described three connecting pipes connects reduction valve by tonifying Qi solenoid valve, one branched pipe of described three connecting pipes is provided with pressure transducer, pressure gauge with electric contact and safety valve, and connect tonifying Qi connecting leg by aeration valve, the described tonifying Qi connecting leg the other end connects the operating electric power SF6 mutual inductor Air filling and discharging valves needing tonifying Qi, another branched pipe of described three connecting pipes is provided with bypass valve, described tonifying Qi solenoid valve and pressure transducer are electrically connected at control module, described tonifying Qi solenoid valve is also electrically connected at pressure gauge with electric contact, described pressure gauge with electric contact is also electrically connected with alarm.Present invention, avoiding the deficiency of traditional making-up air device, realize safe, reliable, efficient, accurate, save, the charged tonifying Qi work of environmental protection.
Description
Technical field
The present invention relates to the charged intelligent making-up air device of a kind of electric power SF6 mutual inductor and supplementing method for air thereof.
Background technique
Operating electric power SF6 mutual inductor, when its inner SF6 gas pressure reduces to a certain extent, can have an accident not due to insulation or in the arc extinguishing ability when discharge fault occurs in mutual inductor inside, even cause the serious consequence of transformer explosion, therefore operating electric power SF6 mutual inductor should carry out tonifying Qi in time when its inner SF6 gas pressure is not enough.Electric power SF6 mutual inductor tradition tonifying Qi mode, mostly by artificial aerating valve hand-manipulated, steadily cannot to releive tonifying Qi according to the SF6 gas pressure of SF6 mutual inductor inside, may neglect due to staff in tonifying Qi process, superfeed pressure is too large, cause gas shock in SF6 electric power mutual-inductor in charging operation, and cause the accident of electric power SF6 mutual inductor, the danger of even exploding, it also avoid as tonifying Qi bleed pressure is not enough, cause and pour out gas, the accident of electric power SF6 mutual inductor in charging operation can be caused equally, the danger of even exploding.Owing to being manual control, there is aerating sometimes excessive, then again by direct for unnecessary SF6 gas emptying air, cause waste and environmental pollution (electric power SF6 gas price is expensive, and emptying causes waste, also can damage the ozone layer).
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, namely a kind of the charged intelligent making-up air device of electric power SF6 mutual inductor and the supplementing method for air thereof that can realize charged online tonifying Qi are provided.
To achieve these goals, technological scheme one of the present invention is: the charged intelligent making-up air device of a kind of electric power SF6 mutual inductor, comprise the gas cylinder having SF6 gas, three connecting pipes and tonifying Qi connecting leg, the outlet of described gas cylinder is provided with reduction valve, the supervisor of described three connecting pipes connects reduction valve by tonifying Qi solenoid valve, one branched pipe of described three connecting pipes is provided with pressure transducer, pressure gauge with electric contact and safety valve, and connect tonifying Qi connecting leg by aeration valve, the described tonifying Qi connecting leg the other end connects the operating electric power SF6 mutual inductor Air filling and discharging valves needing tonifying Qi, another branched pipe of described three connecting pipes is provided with bypass valve, described tonifying Qi solenoid valve and pressure transducer are electrically connected at control module, described tonifying Qi solenoid valve is also electrically connected at pressure gauge with electric contact, described pressure gauge with electric contact is also electrically connected with alarm.
In above-mentioned technological scheme, the real-time gas pressure value in tonifying Qi electric power SF6 mutual inductor needed for described pressure transducer on-line checkingi, and be converted into digital signal transfers to control module; The digital signal that described control module is come according to pressure transducer transmission opens tonifying Qi solenoid valve automatically, and controls the open degree of tonifying Qi solenoid valve.
In above-mentioned technological scheme, the tonifying Qi limiting pressure value that described pressure gauge with electric contact presets according to it closes tonifying Qi solenoid valve automatically.
In above-mentioned technological scheme, the tonifying Qi limiting pressure value that described pressure gauge with electric contact presets according to it connects alarm automatically.
In above-mentioned technological scheme, described safety valve is opened automatically when air compensating system internal pressure exceedes the tonifying Qi limiting pressure value preset, and described safety valve cuts out automatically when air compensating system internal pressure drops to below the tonifying Qi limiting pressure value that presets.
To achieve these goals, technological scheme two of the present invention is: the charged intelligent supplementing method for air of a kind of electric power SF6 mutual inductor, the method adopts the charged intelligent making-up air device of electric power SF6 mutual inductor as above, and carry out according to the following steps: the joint of tonifying Qi connecting leg is connected the interface needing the operating electric power SF6 mutual inductor Air filling and discharging valves of tonifying Qi by (1), and now aeration valve is closed; When on the two compact siro spinning technology, the joint of described tonifying Qi connecting leg backs down electric power SF6 mutual inductor Air filling and discharging valves makes it open; (2) open aeration valve by predetermined comparatively minor valve aperture, make the SF6 gas in electric power SF6 mutual inductor pour making-up air device, open bypass valve, so that air remaining for possibility in making-up air device, moisture are washed away; When after SF6 gas bleed making-up air device, close bypass valve, prepare to carry out charged tonifying Qi; (3) standard-sized sheet aeration valve, opens the main valve of gas cylinder, opens and regulates reduction valve to predetermined force value, opening control module; Detect gas pressure in electric power SF6 mutual inductor by pressure transducer, and detected real-time pressure value is converted to digital signal is sent to control module; Described control module opens tonifying Qi solenoid valve according to the pressure difference preset, and dynamically regulates its open degree to carry out steady tonifying Qi of releiving; When tonifying Qi is to the tonifying Qi limiting pressure value preset, described pressure gauge with electric contact closes tonifying Qi solenoid valve automatically, connects alarm equipment alarm simultaneously, remind staff tonifying Qi to rated pressure value; Close the main valve of gas cylinder, close reduction valve, close aeration valve, exit the joint that tonifying Qi connecting leg is connected with electric power SF6 mutual inductor Air filling and discharging valves, electric power SF6 mutual inductor Air filling and discharging valves is closed automatically, after opening bypass valve pressure release, and tonifying Qi end-of-job.
Compared with prior art, the present invention has following beneficial effect: the deficiency that present invention, avoiding traditional making-up air device, achieve safe, reliable, efficient, accurate, save, the charged tonifying Qi work of environmental protection, no matter carry out under charging operation situation in the safety reliability of tonifying Qi from guarantee electric power SF6 mutual inductor, or all have huge advantage from saving and environmental protection aspect.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Accompanying drawing explanation
Fig. 1 is the using state figure of the embodiment of the present invention.
Fig. 2 is the intelligent automatic control functional-block diagram of the embodiment of the present invention.
Fig. 3 is the control circuit figure of pressure gauge with electric contact design of pressure.
Fig. 4 is the main line map interlinking that pressure gauge with electric contact controls tonifying Qi solenoid valve, alarm.
In figure: 1-gas cylinder, 2-reduction valve, 3-tonifying Qi solenoid valve, 4-tri-connecting pipe, 5-bypass valve, 6-alarm, 7-safety valve, 8-pressure gauge with electric contact, 9-pressure transducer, 10-aeration valve, 11-tonifying Qi connecting leg, 12-electric power SF6 mutual inductor Air filling and discharging valves, 13-electric power SF6 mutual inductor, A-high-voltage connection; DJ1-pressure gauge with electric contact pressure setting voltage limiting relay, K1-switch, C1-tonifying Qi solenoid valve, C2-alarm, N-ground connection, ∽ 220V-Ac 220V.
Embodiment
As shown in Fig. 1 ~ 4, the charged intelligent making-up air device of a kind of electric power SF6 mutual inductor, comprise the gas cylinder 1 having SF6 gas, three connecting pipes 4 and tonifying Qi connecting leg 11, the outlet of described gas cylinder 1 is provided with reduction valve 2, the supervisor of described three connecting pipes 4 connects reduction valve 2 by tonifying Qi solenoid valve 3, one branched pipe of described three connecting pipes 4 is provided with pressure transducer 9, pressure gauge with electric contact 8 and safety valve 7, and connect tonifying Qi connecting leg 11 by aeration valve 10, described tonifying Qi connecting leg 11 the other end connects the operating electric power SF6 mutual inductor Air filling and discharging valves 12 needing tonifying Qi, another branched pipe of described three connecting pipes 4 is provided with bypass valve 5, described tonifying Qi solenoid valve 3 and pressure transducer 9 are electrically connected at control module, described tonifying Qi solenoid valve 3 is also electrically connected at pressure gauge with electric contact 8, described pressure gauge with electric contact 8 is also electrically connected with alarm 6.
In the present embodiment, described control module can carry out intelligent control tonifying Qi, real-time gas pressure value in tonifying Qi electric power SF6 mutual inductor 13 needed for described pressure transducer 9 energy on-line checkingi, and be converted into digital signal transfers to control module, the digital signal that described control module can be come according to pressure transducer 9 transmission opens tonifying Qi solenoid valve 3 automatically, and control the open degree of tonifying Qi solenoid valve 3, when pressure reduction is large, tonifying Qi solenoid valve 3 is opened greatly, vice versa, all the time to releive a little more than the constant pressure difference of electric power SF6 mutual inductor 13 internal system, steady tonifying Qi, avoiding traditional making-up air device may be too large due to superfeed pressure in tonifying Qi process, and cause gas shock in electric power SF6 mutual inductor 13 in charging operation, and cause electric power SF6 mutual inductor 13 accident, the danger of even exploding, it also avoid as tonifying Qi bleed pressure is not enough, cause and pour out gas, in mutual inductor, insulating capacity is not enough, the accident of electric power SF6 mutual inductor 13 in charging operation can be caused equally, the danger of even exploding, the strong guarantee safe tonifying Qi work of electric power SF6 mutual inductor 13 under charging operation situation.
In the present embodiment, the tonifying Qi limiting pressure value that described pressure gauge with electric contact 8 can preset according to it closes tonifying Qi solenoid valve 3 automatically, and connection alarm 6 is reported to the police automatically, and described alarm 6 also can be arranged on a branched pipe of three connecting pipes 4; When making-up air device pressure reaches this setup pressure value, pressure gauge with electric contact 8 action, automatically closes tonifying Qi solenoid valve 3 and connects alarm 6 and send buzzing chimes of doom, notify staff tonifying Qi to rated pressure value.
In the present embodiment, when air compensating system internal pressure exceedes the tonifying Qi limiting pressure value preset, and now pressure transducer 9, pressure gauge with electric contact 8 break down, or dead electricity uncontrollable time, described safety valve 7 can open delivery system pressure automatically, pressure release, to ensure the safety of system, plays last pipe protection effect; Time below air compensating system pressure drop to setting value, described safety valve 7 cuts out automatically.Described bypass valve 5 is as the use of venting after the adapter of gas bleed interface, connecting leg and bypass.
As shown in Fig. 1 ~ 4, the charged intelligent supplementing method for air of a kind of electric power SF6 mutual inductor, the method adopts the charged intelligent making-up air device of electric power SF6 mutual inductor as above, and carries out according to the following steps:
(1) joint of tonifying Qi connecting leg 11 is connected the interface needing the operating electric power SF6 mutual inductor Air filling and discharging valves 12 of tonifying Qi, the aeration valve 10 now on tonifying Qi connecting leg 11 is closed; When on the joint of tonifying Qi connecting leg 11 and the interface compact siro spinning technology of electric power SF6 mutual inductor Air filling and discharging valves 12, namely back down electric power SF6 mutual inductor Air filling and discharging valves 12 and make it open;
(2) by the predetermined aeration valve 10 opened a little compared with minor valve aperture on tonifying Qi connecting leg 11, the SF6 gas in electric power SF6 mutual inductor 13 is made to pour making-up air device, open the bypass valve 5 on three connecting pipes 4, air remaining for possibility in making-up air device, moisture to be washed away; When after SF6 gas bleed making-up air device, close the bypass valve 5 on three connecting pipes 4, prepare to carry out charged tonifying Qi;
(3) aeration valve 10 on standard-sized sheet tonifying Qi connecting leg 11, opens the main valve of gas cylinder 1, opens and regulates reduction valve 2 to 1MPa(or determine reduction valve 2 pressure according to filling rated working pressure in electric power SF6 mutual inductor 13), open control module; Detect gas pressure in electric power SF6 mutual inductor 13 system by pressure transducer 9, and detected real-time pressure value is converted to digital signal is sent to control module; Described control module opens the tonifying Qi solenoid valve 3 on three connecting pipes 4 according to the pressure difference preset, and dynamically regulates its open degree, to carry out a little more than gas pressure in electric power SF6 mutual inductor 13 steady tonifying Qi of releiving all the time; When tonifying Qi is to the tonifying Qi limiting pressure value preset, described pressure gauge with electric contact 8 automatically closes tonifying Qi solenoid valve 3, connects alarm 6 simultaneously and reports to the police, remind staff tonifying Qi to rated pressure value; Close the main valve of gas cylinder 1, close reduction valve 2, close aeration valve 10, exit the joint that tonifying Qi connecting leg 11 is connected with electric power SF6 mutual inductor Air filling and discharging valves 12, electric power SF6 mutual inductor Air filling and discharging valves 12 is closed automatically, after opening bypass valve 5 pressure release, and tonifying Qi end-of-job.
In the present embodiment, in step (1), the charged intelligent making-up air device of this electric power SF6 mutual inductor can Assembling, first the joint of tonifying Qi connecting leg 11 is connected the interface of electric power SF6 mutual inductor Air filling and discharging valves 12 during assembling, again by a branched pipe interface of the aeration valve 10 interface connecting tee connecting leg 4 of tonifying Qi connecting leg 11 the other end, finally supervisor's interface of three connecting pipes 4 is connected on reduction valve 2 interface of high-pressure cylinder outlet by tonifying Qi solenoid valve 3.
In the present embodiment, in step (3), the charged intelligent making-up air device of this electric power SF6 mutual inductor can field stripping so that collection, after tonifying Qi connecting leg 11 and electric power SF6 mutual inductor Air filling and discharging valves 12 depart from and be connected, tonifying Qi connecting leg 11, three connecting pipe 4, tonifying Qi solenoid valve 3, reduction valve 2 etc. are removed, cases.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. an electric power SF
6the charged intelligent making-up air device of mutual inductor, is characterized in that: comprise and have SF
6the gas cylinder of gas, three connecting pipes and tonifying Qi connecting leg, the outlet of described gas cylinder is provided with reduction valve, the supervisor of described three connecting pipes connects reduction valve by tonifying Qi solenoid valve, one branched pipe of described three connecting pipes is provided with pressure transducer, pressure gauge with electric contact and safety valve, and connecting tonifying Qi connecting leg by aeration valve, the described tonifying Qi connecting leg the other end connects the operating electric power SF needing tonifying Qi
6mutual inductor Air filling and discharging valves, another branched pipe of described three connecting pipes is provided with bypass valve, described tonifying Qi solenoid valve and pressure transducer are electrically connected at control module, and described tonifying Qi solenoid valve is also electrically connected at pressure gauge with electric contact, and described pressure gauge with electric contact is also electrically connected with alarm; Tonifying Qi electric power SF needed for described pressure transducer on-line checkingi
6real-time gas pressure value in mutual inductor, and be converted into digital signal transfers to control module; The digital signal that described control module is come according to pressure transducer transmission opens tonifying Qi solenoid valve automatically, and controls the open degree of tonifying Qi solenoid valve; Described safety valve is opened automatically when air compensating system internal pressure exceedes the tonifying Qi limiting pressure value preset, and described safety valve cuts out automatically when air compensating system internal pressure drops to below the tonifying Qi limiting pressure value that presets.
2. electric power SF according to claim 1
6the charged intelligent making-up air device of mutual inductor, is characterized in that: the tonifying Qi limiting pressure value that described pressure gauge with electric contact presets according to it closes tonifying Qi solenoid valve automatically.
3. electric power SF according to claim 1
6the charged intelligent making-up air device of mutual inductor, is characterized in that: the tonifying Qi limiting pressure value that described pressure gauge with electric contact presets according to it connects alarm automatically.
4. an electric power SF
6the charged intelligent supplementing method for air of mutual inductor, is characterized in that: the method adopts electric power SF as claimed in claim 1
6the charged intelligent making-up air device of mutual inductor, and carry out according to the following steps: the joint of tonifying Qi connecting leg is connected the operating electric power SF needing tonifying Qi by (1)
6the interface of mutual inductor Air filling and discharging valves, now aeration valve is closed; When on the two compact siro spinning technology, the joint of described tonifying Qi connecting leg backs down electric power SF
6mutual inductor Air filling and discharging valves makes it open; (2) open aeration valve by predetermined comparatively minor valve aperture, make electric power SF
6sF in mutual inductor
6gas pours making-up air device, opens bypass valve, air remaining for possibility in making-up air device, moisture to be washed away; Work as SF
6after gas bleed making-up air device, close bypass valve, prepare to carry out charged tonifying Qi; (3) standard-sized sheet aeration valve, opens the main valve of gas cylinder, opens and regulates reduction valve to predetermined force value, opening control module; Electric power SF is detected by pressure transducer
6gas pressure in mutual inductor, and detected real-time pressure value is converted to digital signal is sent to control module; Described control module opens tonifying Qi solenoid valve according to the pressure difference preset, and dynamically regulates its open degree to carry out steady tonifying Qi of releiving; When tonifying Qi is to the tonifying Qi limiting pressure value preset, described pressure gauge with electric contact closes tonifying Qi solenoid valve automatically, connects alarm equipment alarm simultaneously, remind staff tonifying Qi to rated pressure value; Close the main valve of gas cylinder, close reduction valve, close aeration valve, exit tonifying Qi connecting leg and electric power SF
6the joint that mutual inductor Air filling and discharging valves connects, electric power SF
6mutual inductor Air filling and discharging valves is closed automatically, after opening bypass valve pressure release, and tonifying Qi end-of-job.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410040601.5A CN103742782B (en) | 2014-01-28 | 2014-01-28 | A kind of electric power charged intelligent making-up air device of SF6 mutual inductor and supplementing method for air thereof |
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| CN201410040601.5A CN103742782B (en) | 2014-01-28 | 2014-01-28 | A kind of electric power charged intelligent making-up air device of SF6 mutual inductor and supplementing method for air thereof |
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| CN103742782A CN103742782A (en) | 2014-04-23 |
| CN103742782B true CN103742782B (en) | 2015-09-02 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104891449B (en) * | 2015-05-21 | 2016-11-02 | 国家电网公司 | A kind of electric power SF6transformer gas online treatment device and using method |
| CN105627086B (en) * | 2015-12-30 | 2018-02-06 | 国家电网公司 | SF6 electrical equipment automatic on-line making-up air devices |
| CN107943120A (en) * | 2017-12-26 | 2018-04-20 | 郑州赛奥电子股份有限公司 | A kind of on-line automatic density regulating apparatus of SF6 |
| CN110201460A (en) * | 2019-07-12 | 2019-09-06 | 广东电网有限责任公司 | A kind of SF6Gas on-line intelligence purification device |
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| US6418980B1 (en) * | 1998-12-24 | 2002-07-16 | L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for filling gas-insulated electric current transmission lines with gas and process for manufacturing lines which incorporates such a filling method |
| CN201266129Y (en) * | 2008-10-10 | 2009-07-01 | 湖南电力电瓷电器厂 | Air pressure monitoring device for sulfur hexafluoride gas insulation current mutual inductor |
| CN201706186U (en) * | 2010-06-18 | 2011-01-12 | 山东彼岸电力科技有限公司 | SE6 compound insulation mutual-inductor air filling tube |
| CN203297933U (en) * | 2013-05-09 | 2013-11-20 | 山西太钢不锈钢股份有限公司 | On-line automatic sulfur hexafluoride inflation device |
| CN203743828U (en) * | 2014-01-28 | 2014-07-30 | 国家电网公司 | Charged intelligent gas supply device of power SF6 transformer |
-
2014
- 2014-01-28 CN CN201410040601.5A patent/CN103742782B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6418980B1 (en) * | 1998-12-24 | 2002-07-16 | L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for filling gas-insulated electric current transmission lines with gas and process for manufacturing lines which incorporates such a filling method |
| CN201266129Y (en) * | 2008-10-10 | 2009-07-01 | 湖南电力电瓷电器厂 | Air pressure monitoring device for sulfur hexafluoride gas insulation current mutual inductor |
| CN201706186U (en) * | 2010-06-18 | 2011-01-12 | 山东彼岸电力科技有限公司 | SE6 compound insulation mutual-inductor air filling tube |
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| CN203743828U (en) * | 2014-01-28 | 2014-07-30 | 国家电网公司 | Charged intelligent gas supply device of power SF6 transformer |
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