CN203690199U - Electric power SF6 breaker live-line intelligent gas supplementing device - Google Patents
Electric power SF6 breaker live-line intelligent gas supplementing device Download PDFInfo
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- CN203690199U CN203690199U CN201420054199.1U CN201420054199U CN203690199U CN 203690199 U CN203690199 U CN 203690199U CN 201420054199 U CN201420054199 U CN 201420054199U CN 203690199 U CN203690199 U CN 203690199U
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- tonifying
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- valve
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- circuit breaker
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- 230000001502 supplementing effect Effects 0.000 title abstract 13
- 238000007599 discharging Methods 0.000 claims abstract description 16
- 238000005273 aeration Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 231100000004 severe toxicity Toxicity 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to an electric power SF6 breaker live-line intelligent gas supplementing device. The device comprises a high-pressure gas cylinder stored with SF6 gas, a three-way connection pipe and a gas supplementing connection pipe. The outlet of the high-pressure gas cylinder is equipped with a pressure-reducing valve. The main pipe of the three-way connection pipe is connected with the pressure-reducing valve through a gas supplementing solenoid valve. A branch pipe of the three-way connection pipe is equipped with a pressure sensor, an electro connecting pressure gauge and a safety valve, and is connected with the gas supplementing connection pipe through a gas supplementing valve. The other end of the gas supplementing connection pipe is connected with a running electric power SF6 breaker gas charging and discharging valve which needs gas supplementing. The other branch pipe of the three-way connection pipe is equipped with a by-passing valve. The gas supplementing solenoid valve and the pressure sensor are electrically connected with a control module. The gas supplementing solenoid valve is electrically connected with the electro connecting pressure gauge. The electro connecting pressure gauge is electrically connected with an alarm. The gas supplementing device overcomes defects of traditional gas supplementing devices, and achieves safe, reliable, efficient, accurate, economical and environmentally friendly live-line gas supplementing work.
Description
Technical field
The utility model relates to the charged intelligent making-up air device of a kind of electric power SF6 circuit breaker.
Background technology
Operating electric power SF6 circuit breaker, in the time that its inner SF6 gas pressure reduces to a certain extent, can due to insulation and arc extinguishing ability inadequate and serious accident occurs in the time carrying out breaking-closing operating, even cause the serious consequence of switch blast, therefore operating electric power SF6 circuit breaker should carry out in time tonifying Qi in the time that its inner SF6 gas pressure is not enough.Electric power SF6 circuit breaker tradition tonifying Qi mode, mostly by artificial aerating valve hand-manipulated, cannot be according to the tonifying Qi of steadily releiving of the SF6 gas pressure of SF6 circuit breaker inside, may be because staff neglects in tonifying Qi process, tonifying Qi pressure is too large, cause gas shock in SF6 power circuit breaker in charging operation, and cause the accident of electric power SF6 circuit breaker, the even danger of blast, also avoided as tonifying Qi bleed pressure deficiency, cause and pour out gas, can cause equally the accident of electric power SF6 circuit breaker in charging operation, even the danger of blast.Owing to being Artificial Control, there is sometimes aerating excessive, then again by direct unnecessary SF6 gas emptying atmosphere, cause waste and environmental pollution (electric power SF6 gas price costliness, emptying meeting damages the ozone layer, and crosses some catabolite of SF6 gas through arc extinguishing and have severe toxicity in switch).
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, and a kind of charged intelligent making-up air device of electric power SF6 circuit breaker that can realize charged online tonifying Qi is provided.
To achieve these goals, the technical solution of the utility model is: the charged intelligent making-up air device of a kind of electric power SF6 circuit breaker, comprise the gas cylinder that has SF6 gas, three connecting pipes and tonifying Qi connecting leg, the outlet of described gas cylinder is provided with pressure-reducing valve, the supervisor of described three connecting pipes connects pressure-reducing valve by tonifying Qi electromagnetically operated valve, on one branched pipe of described three connecting pipes, pressure sensor is installed, electro connecting pressure gauge and safety valve, and connect tonifying Qi connecting leg by aeration valve, the described tonifying Qi connecting leg other end connects the operating electric power SF6 circuit breaker Air filling and discharging valves that needs tonifying Qi, on another branched pipe of described three connecting pipes, by-pass valve is installed, described tonifying Qi electromagnetically operated valve and pressure sensor are electrically connected at control module, described tonifying Qi electromagnetically operated valve is also electrically connected at electro connecting pressure gauge, described electro connecting pressure gauge is also electrically connected with alarm.
In above-mentioned technical scheme, the online real-time gas pressure value detecting in required tonifying Qi electric power SF6 circuit breaker of described pressure sensor, and be converted into digital signal transfers to control module; The digital signal that described control module is come according to pressure sensor transmission is opened tonifying Qi electromagnetically operated valve automatically, and controls the open degree of tonifying Qi electromagnetically operated valve.
In above-mentioned technical scheme, described electro connecting pressure gauge is closed tonifying Qi electromagnetically operated valve automatically according to its predefined tonifying Qi limiting pressure value.
In above-mentioned technical scheme, described electro connecting pressure gauge is connected alarm automatically according to its predefined tonifying Qi limiting pressure value.
In above-mentioned technical scheme, described safety valve is automatically opened in the time that air compensating system internal pressure exceedes predefined tonifying Qi limiting pressure value, and described safety valve cuts out below air compensating system internal pressure drops to predefined tonifying Qi limiting pressure value time automatically.
In above-mentioned technical scheme, the using method of the charged intelligent making-up air device of this electric power SF6 circuit breaker, carry out according to the following steps: (1) connects the joint of tonifying Qi connecting leg the interface of the operating electric power SF6 circuit breaker Air filling and discharging valves that needs tonifying Qi, and now aeration valve is closed; In the time that the two closely connects above, the joint of described tonifying Qi connecting leg backs down electric power SF6 circuit breaker Air filling and discharging valves and makes its unlatching; (2) open aeration valve by predetermined compared with minor valve aperture, make the SF6 gas in electric power SF6 circuit breaker pour making-up air device, open by-pass valve, washing away by remaining air, moisture in making-up air device; When after SF6 gas bleed making-up air device, close by-pass valve, prepare to carry out charged tonifying Qi; (3) standard-sized sheet aeration valve, the main valve of unlatching gas cylinder, opens and regulates pressure-reducing valve to predetermined force value, opens control module; Detect gas pressure in electric power SF6 circuit breaker by pressure sensor, and detected real-time pressure value is converted to digital signal is sent to control module; Described control module is opened tonifying Qi electromagnetically operated valve according to predefined pressure difference, and dynamically regulates its open degree with the steady tonifying Qi of releiving; When tonifying Qi is when the predefined tonifying Qi limiting pressure value, described electro connecting pressure gauge is closed tonifying Qi electromagnetically operated valve automatically, connects alarm equipment alarm simultaneously, remind staff tonifying Qi to rated pressure value; Close the main valve of gas cylinder, close pressure-reducing valve, close aeration valve, exit the joint that tonifying Qi connecting leg is connected with electric power SF6 circuit breaker Air filling and discharging valves, electric power SF6 circuit breaker Air filling and discharging valves is closed automatically, opens after by-pass valve pressure release tonifying Qi end-of-job.
Compared with prior art, the utlity model has following beneficial effect: the utility model has been avoided the deficiency of traditional making-up air device, realize the charged tonifying Qi work of safe, reliable, efficient, accurate, saving, environmental protection, no matter from ensureing that electric power SF6 circuit breaker carries out aspect the security reliability of tonifying Qi under charging operation situation, or from saving and all there is huge advantage environmental protection aspect.
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Accompanying drawing explanation
Fig. 1 is the use state diagram of the utility model embodiment.
Fig. 2 is the intelligent automatic control functional-block diagram of the utility model embodiment.
Fig. 3 is the control circuit figure of electro connecting pressure gauge design of pressure.
Fig. 4 is the main line map interlinking of electro connecting pressure gauge control tonifying Qi electromagnetically operated valve, alarm.
In figure: 1-gas cylinder, 2-pressure-reducing valve, 3-tonifying Qi electromagnetically operated valve, 4-tri-connecting pipes, 5-by-pass valve, 6-alarm, 7-safety valve, 8-electro connecting pressure gauge, 9-pressure sensor, 10-aeration valve, 11-tonifying Qi connecting leg, 12-electric power SF6 circuit breaker Air filling and discharging valves, 13-electric power SF6 circuit breaker, A-high-voltage switch gear inlet wire, the outlet of B-high-voltage switch gear; DJ1-electro connecting pressure gauge pressure setting pressure limiting relay, K1-switch, C1-tonifying Qi electromagnetically operated valve, C2-alarm, N-ground connection, ∽ 220V-alternating current 220V.
Embodiment
As shown in Fig. 1 ~ 4, the charged intelligent making-up air device of a kind of electric power SF6 circuit breaker, comprise the gas cylinder 1 that has SF6 gas, three connecting pipes 4 and tonifying Qi connecting leg 11, the outlet of described gas cylinder 1 is provided with pressure-reducing valve 2, the supervisor of described three connecting pipes 4 connects pressure-reducing valve 2 by tonifying Qi electromagnetically operated valve 3, on one branched pipe of described three connecting pipes 4, pressure sensor 9 is installed, electro connecting pressure gauge 8 and safety valve 7, and connect tonifying Qi connecting leg 11 by aeration valve 10, described tonifying Qi connecting leg 11 other ends connect the operating electric power SF6 circuit breaker Air filling and discharging valves 12 that needs tonifying Qi, on another branched pipe of described three connecting pipes 4, by-pass valve 5 is installed, described tonifying Qi electromagnetically operated valve 3 and pressure sensor 9 are electrically connected at control module, described tonifying Qi electromagnetically operated valve 3 is also electrically connected at electro connecting pressure gauge 8, described electro connecting pressure gauge 8 is also electrically connected with alarm 6.
In the present embodiment, described control module can be carried out Based Intelligent Control tonifying Qi, described pressure sensor 9 can detect the real-time gas pressure value in required tonifying Qi electric power SF6 circuit breaker 13 online, and is converted into digital signal transfers to control module, described control module can be transmitted the digital signal of coming according to pressure sensor 9 and automatically open tonifying Qi electromagnetically operated valve 3, and control the open degree of tonifying Qi electromagnetically operated valve 3, when pressure reduction is large, tonifying Qi electromagnetically operated valve 3 is opened large, vice versa, all the time to releive a little more than the constant pressure difference of electric power SF6 circuit breaker 13 internal system, steadily tonifying Qi, avoid traditional making-up air device may be because tonifying Qi pressure is too large in tonifying Qi process, and cause electric power SF6 circuit breaker 13 interior gas shocks in charging operation, and cause electric power SF6 circuit breaker 13 accidents, the even danger of blast, also avoided as tonifying Qi bleed pressure deficiency, cause and pour out gas, can cause equally the accident of electric power SF6 circuit breaker 13 in charging operation, the even danger of blast, strong guarantee the safe tonifying Qi work of electric power SF6 circuit breaker 13 under charging operation situation.
In the present embodiment, described electro connecting pressure gauge 8 can be closed tonifying Qi electromagnetically operated valve 3 automatically according to its predefined tonifying Qi limiting pressure value, and automatically connects alarm 6 and report to the police, and described alarm 6 also can be arranged on a branched pipe of three connecting pipes 4; In the time that making-up air device pressure reaches this setup pressure value, electro connecting pressure gauge 8 moves, and automatically closes tonifying Qi electromagnetically operated valve 3 and connects alarm 6 and send buzzing chimes of doom, notify staff tonifying Qi to rated pressure value.
In the present embodiment, in the time that air compensating system internal pressure exceedes predefined tonifying Qi limiting pressure value, and now pressure sensor 9, electro connecting pressure gauge 8 break down, or dead electricity is when uncontrollable, described safety valve 7 can be opened delivery system pressure automatically, pressure release, to guarantee the safety of system, is played last pipe protection effect; In the time that air compensating system pressure drop arrives below set point, described safety valve 7 cuts out automatically.Described by-pass valve 5 is taken over the use of rear venting as gas bleed interface, connecting leg and bypass.
In the present embodiment, the using method of the charged intelligent making-up air device of this electric power SF6 circuit breaker, carry out according to the following steps::
(1) joint of tonifying Qi connecting leg 11 is connected to the interface of the operating electric power SF6 circuit breaker Air filling and discharging valves 12 that needs tonifying Qi, now the aeration valve 10 on tonifying Qi connecting leg 11 is closed; In the time that the joint of tonifying Qi connecting leg 11 and the interface of electric power SF6 circuit breaker Air filling and discharging valves 12 are closely connected, back down electric power SF6 circuit breaker Air filling and discharging valves 12 and make its unlatching;
(2) by predetermined, compared with minor valve aperture, a little opens the aeration valve 10 on tonifying Qi connecting leg 11, make the SF6 gas in electric power SF6 circuit breaker 13 pour making-up air device, open the by-pass valve 5 on three connecting pipes 4, washing away by remaining air, moisture in making-up air device; When after SF6 gas bleed making-up air device, close the by-pass 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, the main valve of unlatching gas cylinder 1, opens and regulates pressure-reducing valve 2 to 1MPa(or determine pressure-reducing valve 2 pressure according to the interior filled rated operating pressure of electric power SF6 circuit breaker 13), open control module; Detect gas pressure in electric power SF6 circuit breaker 13 systems by pressure sensor 9, and detected real-time pressure value is converted to digital signal is sent to control module; Described control module is opened the tonifying Qi electromagnetically operated valve 3 on three connecting pipes 4 according to predefined pressure difference, and dynamically regulates its open degree, with all the time a little more than the steady tonifying Qi of releiving of electric power SF6 circuit breaker 13 interior gas pressures; When tonifying Qi is when the predefined tonifying Qi limiting pressure value, described electro connecting pressure gauge 8 is closed tonifying Qi electromagnetically operated valve 3 automatically, 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 pressure-reducing valve 2, close aeration valve 10, exit the joint that tonifying Qi connecting leg 11 is connected with electric power SF6 circuit breaker Air filling and discharging valves 12, electric power SF6 circuit breaker Air filling and discharging valves 12 is closed automatically, opens after by-pass valve 5 pressure releases tonifying Qi end-of-job.
In the present embodiment, in step (1), the charged intelligent making-up air device of this electric power SF6 circuit breaker can Assembling, when assembling, first the joint of tonifying Qi connecting leg 11 is connected to the interface of electric power SF6 circuit breaker Air filling and discharging valves 12, by a branched pipe interface of the aeration valve of tonifying Qi connecting leg 11 other ends 10 interface connecting tee connecting legs 4, finally supervisor's interface of three connecting pipes 4 is connected on pressure-reducing valve 2 interfaces of high-pressure cylinder outlet by tonifying Qi electromagnetically operated valve 3 again.
In the present embodiment, in step (3), the charged intelligent making-up air device of this electric power SF6 circuit breaker can field stripping so that collection, after tonifying Qi connecting leg 11 and electric power SF6 circuit breaker Air filling and discharging valves 12 departs from and be connected, tonifying Qi connecting leg 11, three connecting pipes 4, tonifying Qi electromagnetically operated valve 3, pressure-reducing valve 2 etc. are removed, cased.
The foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. the charged intelligent making-up air device of electric power SF6 circuit breaker, it is characterized in that: comprise the gas cylinder that has SF6 gas, three connecting pipes and tonifying Qi connecting leg, the outlet of described gas cylinder is provided with pressure-reducing valve, the supervisor of described three connecting pipes connects pressure-reducing valve by tonifying Qi electromagnetically operated valve, on one branched pipe of described three connecting pipes, pressure sensor is installed, electro connecting pressure gauge and safety valve, and connect tonifying Qi connecting leg by aeration valve, the described tonifying Qi connecting leg other end connects the operating electric power SF6 circuit breaker Air filling and discharging valves that needs tonifying Qi, on another branched pipe of described three connecting pipes, by-pass valve is installed, described tonifying Qi electromagnetically operated valve and pressure sensor are electrically connected at control module, described tonifying Qi electromagnetically operated valve is also electrically connected at electro connecting pressure gauge, described electro connecting pressure gauge is also electrically connected with alarm.
2. the charged intelligent making-up air device of electric power SF6 circuit breaker according to claim 1, is characterized in that: the online real-time gas pressure value detecting in required tonifying Qi electric power SF6 circuit breaker of described pressure sensor, and be converted into digital signal transfers to control module; The digital signal that described control module is come according to pressure sensor transmission is opened tonifying Qi electromagnetically operated valve automatically, and controls the open degree of tonifying Qi electromagnetically operated valve.
3. the charged intelligent making-up air device of electric power SF6 circuit breaker according to claim 1, is characterized in that: described electro connecting pressure gauge is closed tonifying Qi electromagnetically operated valve automatically according to its predefined tonifying Qi limiting pressure value.
4. the charged intelligent making-up air device of electric power SF6 circuit breaker according to claim 1, is characterized in that: described electro connecting pressure gauge is connected alarm automatically according to its predefined tonifying Qi limiting pressure value.
5. the charged intelligent making-up air device of electric power SF6 circuit breaker according to claim 1, it is characterized in that: described safety valve is automatically opened in the time that air compensating system internal pressure exceedes predefined tonifying Qi limiting pressure value, described safety valve cuts out below air compensating system internal pressure drops to predefined tonifying Qi limiting pressure value time automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420054199.1U CN203690199U (en) | 2014-01-28 | 2014-01-28 | Electric power SF6 breaker live-line intelligent gas supplementing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420054199.1U CN203690199U (en) | 2014-01-28 | 2014-01-28 | Electric power SF6 breaker live-line intelligent gas supplementing device |
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| CN203690199U true CN203690199U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420054199.1U Expired - Fee Related CN203690199U (en) | 2014-01-28 | 2014-01-28 | Electric power SF6 breaker live-line intelligent gas supplementing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745873A (en) * | 2014-01-28 | 2014-04-23 | 国家电网公司 | Electrical SF6 circuit-breaker electrified intelligent gas supplement unit and gas supplement method |
| CN104500968A (en) * | 2014-11-27 | 2015-04-08 | 国网河南省电力公司平顶山供电公司 | SF6 circuit breaker remote control online gas-replenishing and gas-bleeding system |
| CN106575586A (en) * | 2014-07-25 | 2017-04-19 | Abb瑞士股份有限公司 | Refill-container for replenishing and/or reconditioning an insulation fluid contained in an insulation space of an electrical apparatus |
| CN112768286A (en) * | 2021-01-22 | 2021-05-07 | 南京普瑞电力科技有限公司 | SF6 high-voltage circuit breaker with leakage detection and leakage repair functions |
-
2014
- 2014-01-28 CN CN201420054199.1U patent/CN203690199U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745873A (en) * | 2014-01-28 | 2014-04-23 | 国家电网公司 | Electrical SF6 circuit-breaker electrified intelligent gas supplement unit and gas supplement method |
| CN103745873B (en) * | 2014-01-28 | 2015-10-14 | 国家电网公司 | A kind of electric power charged intelligent making-up air device of SF6 circuit breaker and supplementing method for air thereof |
| CN106575586A (en) * | 2014-07-25 | 2017-04-19 | Abb瑞士股份有限公司 | Refill-container for replenishing and/or reconditioning an insulation fluid contained in an insulation space of an electrical apparatus |
| CN104500968A (en) * | 2014-11-27 | 2015-04-08 | 国网河南省电力公司平顶山供电公司 | SF6 circuit breaker remote control online gas-replenishing and gas-bleeding system |
| CN112768286A (en) * | 2021-01-22 | 2021-05-07 | 南京普瑞电力科技有限公司 | SF6 high-voltage circuit breaker with leakage detection and leakage repair functions |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20220128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |