CN204165180U - A kind of transformer station sulfur hexafluoride toxic emission gathering system - Google Patents
A kind of transformer station sulfur hexafluoride toxic emission gathering system Download PDFInfo
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- CN204165180U CN204165180U CN201420558780.7U CN201420558780U CN204165180U CN 204165180 U CN204165180 U CN 204165180U CN 201420558780 U CN201420558780 U CN 201420558780U CN 204165180 U CN204165180 U CN 204165180U
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- sulfur hexafluoride
- gas
- transformer station
- control method
- toxic emission
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- 229910018503 SF6 Inorganic materials 0.000 title claims abstract description 71
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 71
- 231100000331 toxic Toxicity 0.000 title claims abstract description 22
- 230000002588 toxic effect Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 46
- 230000000241 respiratory effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009423 ventilation Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 74
- 239000002912 waste gas Substances 0.000 description 33
- 229920006395 saturated elastomer Polymers 0.000 description 8
- 230000006378 damage Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000000567 combustion gas Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 231100000004 severe toxicity Toxicity 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
Abstract
The utility model discloses a kind of transformer station sulfur hexafluoride toxic emission gathering system, comprise electrical room, intelligentized control method platform, exhaust outlet and gas collector, above described electrical room wall, air hole is set, described exhaust outlet is arranged on bottom electrical room, described exhaust outlet connects discharge duct, sulfur hexafluoride sensor is set in described discharge duct, exhaust fan, described discharge duct connects main pipeline, described main pipeline sets out gas port and gas collection mouth, described gas outlet arranges switch valve, described gas collection mouth arranges reversal valve, described gas collection mouth connects described gas collector, described gas collector comprises air bag, standing groove and pressure sensor, sulfur hexafluoride gas concentration in the automatic sensing chamber of the utility model energy, and automatically carry out row's ventilation, prevent sulfur hexafluoride gas from entering in air and cause serious greenhouse effects, integrate exhaust and gas collection, the work facilitating staff launches.
Description
Technical field
The utility model relates to transformer station's auxiliary electric equipment technical field, is specifically related to a kind of transformer station sulfur hexafluoride toxic emission gathering system.
Background technology
Sulfur hexafluoride is as a kind of non-flammable forming gas, chemical property is extremely stable, its insulating capacity is at ambient pressure more than 2.5 times of air, arc extinguishing ability is 100 times of air, have the incomparable insulation of general dielectric and arc quenching characteristic, sulfur hexafluoride (SF6) gas therefore with excellent electric insulation capacity and arc extinction performance is that the sulphur hexafloride circuit breaker of insulation arc-extinguishing medium and hermetically sealed combined electrical apparatus (GIS) widely use in power system.But, also there are some shortcomings in sulfur hexafluoride electrical equipment, sulfur hexafluoride gas as cut-off through electric arc has severe toxicity, the infiltration of outside moisture and air can cause poisonous substance to increase thus seriously affect the electric property of equipment, etching apparatus, the health of harm staff, the leakage of sulfur hexafluoride gas and the liquefaction of sulfur hexafluoride gas under cold state also can cause decline even major accident etc. of apparatus insulated ability, and sulfur hexafluoride is also a kind of greenhouse gases, its monomolecular greenhouse effects are 2.2 ten thousand times of carbon dioxide, RT reaches 3200 in an atmosphere, therefore, to be necessary to design in sulfur hexafluoride discharge chamber that transformer station reveals by a kind of device and to collect, accomplish to avoid staff to come to harm, and it is free from environmental pollution.For 202928008U utility model discloses, a kind of sulfur hexafluoride gas revealed transformer station's high-tension switch gear carries out the air interchanger of forced-ventilated to publication number, specifically sulfur hexafluoride booster ventilation device of transformer substation, comprise the substation intelligent guarantee case be placed in transformer station, the sulfur hexafluoride sensor be connected with intelligent substation environment-guarantee case is set in transformer station, transformer station's sidewall arranges air inlet and toxin expelling fan, another sidewall of transformer station is arranged intelligent substation environment-guarantee case, transformer station's inlet/outlet abutment wall wall arranges display screen, can realize the monitoring of sulfur hexafluoride gas concentration in transformer station by installing the utility model in transformer station and regulate, the display screen simultaneously installed on transformer station's exterior wall can show constantly room sulfur hexafluoride concentration value and operate, but this utility model is not considered for the collection of sulfur hexafluoride waste gas, large quantity of exhaust gas is discharged into contaminated environment in air.
Utility model content
Problem to be solved in the utility model be to provide a kind of can concentration of sulfur hexafluoride can transformer station's sulfur hexafluoride toxic emission gathering system of automatic vent gas collection when it reaches setting value in sensing chamber automatically.
A kind of transformer station sulfur hexafluoride toxic emission gathering system, comprise electrical room, intelligentized control method platform, exhaust outlet and gas collector, above described electrical room wall, air hole is set, described exhaust outlet is arranged on bottom electrical room, described exhaust outlet connects discharge duct, sulfur hexafluoride sensor is set in described discharge duct, exhaust fan, described discharge duct connects main pipeline, described main pipeline sets out gas port and gas collection mouth, described gas outlet arranges switch valve, described gas collection mouth arranges reversal valve, described gas collection mouth connects described gas collector, described gas collector comprises air bag, standing groove and pressure sensor, described intelligentized control method platform and described pressure sensor, described reversal valve, described sulfur hexafluoride sensor is connected with described exhaust fan.
Below described intelligentized control method platform, respiratory auxiliary system is set.
Described gas collection mouth is three, and correspondence arranges three gas collectors.
Described exhaust outlet arranges grate.
Set temperature sensor and heater in described discharge duct, described temperature sensor, described heater are connected with described intelligentized control method platform.
Below described exhaust outlet, sideboard is set.
Described sideboard is plug-type baffle plate, and described sideboard adopts electric expansion bar to promote, and described electric expansion bar is connected with described intelligentized control method platform.
Described electrical room outer wall arranges display screen, and described display screen is connected with described intelligentized control method platform.
The beneficial effects of the utility model are: the utility model comprises electrical room, intelligentized control method platform, exhaust outlet and gas collector, above described electrical room wall, air hole is set, described exhaust outlet is arranged on bottom electrical room, described exhaust outlet connects discharge duct, sulfur hexafluoride sensor is set in described discharge duct, exhaust fan, described discharge duct connects main pipeline, described main pipeline sets out gas port and gas collection mouth, described gas outlet arranges switch valve, described gas collection mouth arranges reversal valve, described gas collection mouth connects described gas collector, described gas collector comprises air bag, standing groove and pressure sensor, described intelligentized control method platform and described pressure sensor, described reversal valve, described sulfur hexafluoride sensor is connected with described exhaust fan.Intelligentized control method platform is made up of integral control circuit, the electric device of system is controlled, when carrying out sulfur hexafluoride toxic emission, outside air can exchange by air hole, be beneficial to the discharge of indoor exhaust air, and due to sulfur hexafluoride waste gas heavier, therefore exhaust outlet is arranged on bottom electrical room, sulfur hexafluoride sensor in discharge duct is monitored exhaust gas concentration, when exceeding setting value, intelligentized control method platform opens exhaust fan, waste gas is discharged, air bag is entered through pipeline, air bag is placed in standing groove, the pressure sensor that the standing groove other end is arranged can detect that whether air bag is saturated, can extrude pressure sensor when saturated, intelligentized control method platform just controls exhaust fan and quits work, reversal valve cuts out, prevent waste gas from flowing backwards and going out, serve the effect of of short duration collection waste gas, staff can operate the switch valve of gas outlet, waste gas is transferred in mobile gathering-device, process is unified to waste gas.
Below described intelligentized control method platform, respiratory auxiliary system is set, when indoor exhaust air concentration raises, Respiration assistance can be carried out to staff, the harm that minimizing accident is brought.
Described gas collection mouth is three, correspondence arranges three gas collectors, the several gas collector of many interpolations, corresponding reversal valve can be closed when air bag is full of, open other gas collector, proceed to collect to waste gas, after having prevented the air bag from expiring, discharge cannot be proceeded to indoor exhaust air.
Described exhaust outlet arranges grate, staff can be walked on top, prevent from falling to discharge duct, also prevents large-sized object from dropping and to damage the device in discharge duct.
Set temperature sensor and heater in described discharge duct, described temperature sensor, described heater are connected with described intelligentized control method platform, sulfur hexafluoride easily liquefies when temperature is lower, not easily discharge, serviceability temperature sensor for temperature is monitored, heat when the temperature is too low, environment temperature is controlled more than condensing temperature, be convenient to the discharge of sulfur hexafluoride waste gas.
Below described exhaust outlet, sideboard is set, when heating in pipeline, sideboard is set exhaust outlet is sealed, prevent waste gas from flowing back to indoor, cause waste gas to discharge comparatively difficulty, be mingled with large quantity of air, increase combustion gas cost.
Described sideboard is plug-type baffle plate, and described sideboard adopts electric expansion bar to promote, and described electric expansion bar is connected with described intelligentized control method platform, adopts and automatically controls, can realize the object of automation combustion gas.
Described electrical room outer wall arranges display screen, and described display screen is connected with described intelligentized control method platform, and the sulfur hexafluoride exhaust gas concentration be used in display room, points out staff, can recognize the concrete condition of electrical room.
Sulfur hexafluoride gas concentration in the automatic sensing chamber of the utility model energy, and by intelligentized control method platform controls, carry out row's ventilation, the larger characteristic of sulfur hexafluoride gas quality is effectively utilized to enter outside air from floor array except sulfur hexafluoride from air hole, and display screen can be reminded staff, automatic replacing air bag, prevent sulfur hexafluoride gas from entering in air and cause serious greenhouse effects, integrate exhaust and gas collection, the work facilitating staff launches.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described:
The structural representation of Tu1Shi the utility model transformer station sulfur hexafluoride toxic emission gathering system;
Fig. 2 is the structural representation of the utility model exhaust outlet;
Fig. 3 is the structural representation of the utility model discharge duct;
Fig. 4 is the structural representation of the utility model gas collector.
Detailed description of the invention
Embodiment one
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4: the utility model provides a kind of transformer station sulfur hexafluoride toxic emission gathering system, comprise electrical room 7, intelligentized control method platform 2, exhaust outlet 4 and gas collector 16, above described electrical room 7 wall, air hole 1 is set, described exhaust outlet 4 is arranged on bottom electrical room 7, described exhaust outlet 4 connects discharge duct 13, in described discharge duct 13, sulfur hexafluoride sensor 11 is set, exhaust fan 14, described discharge duct 13 connects main pipeline 15, described main pipeline 15 sets out gas port 19 and gas collection mouth 17, described gas outlet 19 arranges switch valve 20, described gas collection mouth 17 arranges reversal valve 18, described gas collection mouth 17 connects described gas collector 16, described gas collector 16 comprises air bag 21, standing groove 22 and pressure sensor 23, described intelligentized control method platform 2 and described pressure sensor 23, described reversal valve 18, described sulfur hexafluoride sensor 11 is connected with described exhaust fan 14.Intelligentized control method platform 2 is made up of integral control circuit, the electric device of system is controlled, when carrying out sulfur hexafluoride toxic emission, outside air can exchange by air hole 1, be beneficial to the discharge of indoor exhaust air, and due to sulfur hexafluoride waste gas heavier, therefore exhaust outlet 4 is arranged on bottom electrical room, sulfur hexafluoride sensor in discharge duct 13 11 pairs of exhaust gas concentrations are monitored, when exceeding setting value, intelligentized control method platform 2 opens exhaust fan 14, waste gas is discharged, air bag 21 is entered through pipeline, air bag 21 is placed in standing groove 22, the pressure sensor 23 that standing groove 22 other end is arranged can detect that whether air bag 21 is saturated, can extrude pressure sensor 23 when saturated, intelligentized control method platform 2 just controls exhaust fan 14 and quits work, reversal valve 18 cuts out, prevent waste gas from flowing backwards and going out, serve the effect of of short duration collection waste gas, staff can operate the switch valve 20 of gas outlet 19, waste gas is transferred in mobile gathering-device, process is unified to waste gas.Below described intelligentized control method platform 2, respiratory auxiliary system 3 is set, when indoor exhaust air concentration raises, Respiration assistance can be carried out to staff, the harm that minimizing accident is brought.Described gas collection mouth 17 is three, correspondence arranges three gas collectors 16, the several gas collector 16 of many interpolations, corresponding reversal valve 18 can be closed when air bag 21 is full of, open other gas collector 16, proceed to collect to waste gas, after having prevented the air bag 21 from expiring, discharge cannot be proceeded to indoor exhaust air.Described exhaust outlet 4 arranges grate 5, and staff can be walked on top, prevents from falling to discharge duct 13, also prevents large-sized object from dropping and to damage the device in discharge duct 13.
Embodiment two
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4: the utility model additionally provides a kind of transformer station sulfur hexafluoride toxic emission gathering system, comprise electrical room 7, intelligentized control method platform 2, exhaust outlet 4 and gas collector 16, above described electrical room 7 wall, air hole 1 is set, described exhaust outlet 4 is arranged on bottom electrical room 7, described exhaust outlet 4 connects discharge duct 13, in described discharge duct 13, sulfur hexafluoride sensor 11 is set, exhaust fan 14, described discharge duct 13 connects main pipeline 15, described main pipeline 15 sets out gas port 19 and gas collection mouth 17, described gas outlet 19 arranges switch valve 20, described gas collection mouth 17 arranges reversal valve 18, described gas collection mouth 17 connects described gas collector 16, described gas collector 16 comprises air bag 21, standing groove 22 and pressure sensor 23, described intelligentized control method platform 2 and described pressure sensor 23, described reversal valve 18, described sulfur hexafluoride sensor 11 is connected with described exhaust fan 14.Intelligentized control method platform 2 is made up of integral control circuit, the electric device of system is controlled, when carrying out sulfur hexafluoride toxic emission, outside air can exchange by air hole 1, be beneficial to the discharge of indoor exhaust air, and due to sulfur hexafluoride waste gas heavier, therefore exhaust outlet 4 is arranged on bottom electrical room, sulfur hexafluoride sensor in discharge duct 13 11 pairs of exhaust gas concentrations are monitored, when exceeding setting value, intelligentized control method platform 2 opens exhaust fan 14, waste gas is discharged, air bag 21 is entered through pipeline, air bag 21 is placed in standing groove 22, the pressure sensor 23 that standing groove 22 other end is arranged can detect that whether air bag 21 is saturated, can extrude pressure sensor 23 when saturated, intelligentized control method platform 2 just controls exhaust fan 14 and quits work, reversal valve 18 cuts out, prevent waste gas from flowing backwards and going out, serve the effect of of short duration collection waste gas, staff can operate the switch valve 20 of gas outlet 19, waste gas is transferred in mobile gathering-device, process is unified to waste gas.Set temperature sensor 10 and heater 12 in described discharge duct 13, described temperature sensor 10, described heater 12 are connected with described intelligentized control method platform 2, sulfur hexafluoride easily liquefies when temperature is lower, not easily discharge, serviceability temperature sensor 10 pairs of temperature are monitored, heat when the temperature is too low, environment temperature is controlled more than condensing temperature, be convenient to the discharge of sulfur hexafluoride waste gas.Below described exhaust outlet 4, sideboard 8 is set, when heating in pipeline, sideboard 8 pairs of exhaust outlets 4 is set and seals, prevent waste gas from flowing back to indoor, cause waste gas to discharge comparatively difficulty, be mingled with large quantity of air, increase combustion gas cost.Described sideboard 8 is plug-type baffle plate, and described sideboard 8 adopts electric expansion bar 9 to promote, and described electric expansion bar 9 is connected with described intelligentized control method platform 2, adopts and automatically controls, can realize the object of automation combustion gas.
Embodiment three
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4: the utility model additionally provides a kind of transformer station sulfur hexafluoride toxic emission gathering system, comprise electrical room 7, intelligentized control method platform 2, exhaust outlet 4 and gas collector 16, above described electrical room 7 wall, air hole 1 is set, described exhaust outlet 4 is arranged on bottom electrical room 7, described exhaust outlet 4 connects discharge duct 13, in described discharge duct 13, sulfur hexafluoride sensor 11 is set, exhaust fan 14, described discharge duct 13 connects main pipeline 15, described main pipeline 15 sets out gas port 19 and gas collection mouth 17, described gas outlet 19 arranges switch valve 20, described gas collection mouth 17 arranges reversal valve 18, described gas collection mouth 17 connects described gas collector 16, described gas collector 16 comprises air bag 21, standing groove 22 and pressure sensor 23, described intelligentized control method platform 2 and described pressure sensor 23, described reversal valve 18, described sulfur hexafluoride sensor 11 is connected with described exhaust fan 14.Intelligentized control method platform 2 is made up of integral control circuit, the electric device of system is controlled, when carrying out sulfur hexafluoride toxic emission, outside air can exchange by air hole 1, be beneficial to the discharge of indoor exhaust air, and due to sulfur hexafluoride waste gas heavier, therefore exhaust outlet 4 is arranged on bottom electrical room, sulfur hexafluoride sensor in discharge duct 13 11 pairs of exhaust gas concentrations are monitored, when exceeding setting value, intelligentized control method platform 2 opens exhaust fan 14, waste gas is discharged, air bag 21 is entered through pipeline, air bag 21 is placed in standing groove 22, the pressure sensor 23 that standing groove 22 other end is arranged can detect that whether air bag 21 is saturated, can extrude pressure sensor 23 when saturated, intelligentized control method platform 2 just controls exhaust fan 14 and quits work, reversal valve 18 cuts out, prevent waste gas from flowing backwards and going out, serve the effect of of short duration collection waste gas, staff can operate the switch valve 20 of gas outlet 19, waste gas is transferred in mobile gathering-device, process is unified to waste gas.Described electrical room 7 outer wall arranges display screen 6, and described display screen 6 is connected with described intelligentized control method platform 2, and the sulfur hexafluoride exhaust gas concentration be used in display room, points out staff, can recognize the concrete condition of electrical room.
Claims (8)
1. transformer station's sulfur hexafluoride toxic emission gathering system, comprise electrical room, intelligentized control method platform, exhaust outlet and gas collector, above described electrical room wall, air hole is set, described exhaust outlet is arranged on bottom electrical room, described exhaust outlet connects discharge duct, it is characterized in that: sulfur hexafluoride sensor is set in described discharge duct, exhaust fan, described discharge duct connects main pipeline, described main pipeline sets out gas port and gas collection mouth, described gas outlet arranges switch valve, described gas collection mouth arranges reversal valve, described gas collection mouth connects described gas collector, described gas collector comprises air bag, standing groove and pressure sensor, described intelligentized control method platform and described pressure sensor, described reversal valve, described sulfur hexafluoride sensor is connected with described exhaust fan.
2. transformer station as claimed in claim 1 sulfur hexafluoride toxic emission gathering system, is characterized in that: arrange respiratory auxiliary system below described intelligentized control method platform.
3. transformer station as claimed in claim 1 sulfur hexafluoride toxic emission gathering system, it is characterized in that: described gas collection mouth is three, correspondence arranges three gas collectors.
4. transformer station as claimed in claim 1 sulfur hexafluoride toxic emission gathering system, is characterized in that: described exhaust outlet arranges grate.
5. transformer station as claimed in claim 1 sulfur hexafluoride toxic emission gathering system, it is characterized in that: set temperature sensor and heater in described discharge duct, described temperature sensor, described heater are connected with described intelligentized control method platform.
6. the transformer station's sulfur hexafluoride toxic emission gathering system as described in claim 1 or 5, is characterized in that: arrange sideboard below described exhaust outlet.
7. transformer station as claimed in claim 6 sulfur hexafluoride toxic emission gathering system, is characterized in that: described sideboard is plug-type baffle plate, and described sideboard adopts electric expansion bar to promote, and described electric expansion bar is connected with described intelligentized control method platform.
8. transformer station as claimed in claim 1 sulfur hexafluoride toxic emission gathering system, it is characterized in that: described electrical room outer wall arranges display screen, described display screen is connected with described intelligentized control method platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420558780.7U CN204165180U (en) | 2014-09-26 | 2014-09-26 | A kind of transformer station sulfur hexafluoride toxic emission gathering system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420558780.7U CN204165180U (en) | 2014-09-26 | 2014-09-26 | A kind of transformer station sulfur hexafluoride toxic emission gathering system |
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| CN204165180U true CN204165180U (en) | 2015-02-18 |
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| CN201420558780.7U Active CN204165180U (en) | 2014-09-26 | 2014-09-26 | A kind of transformer station sulfur hexafluoride toxic emission gathering system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214884A (en) * | 2014-09-26 | 2014-12-17 | 国网河南省电力公司南阳供电公司 | Sulfur hexafluoride waste gas exhausting and collecting system for transformer substation |
| CN105864633A (en) * | 2016-03-25 | 2016-08-17 | 国网北京市电力公司 | SF6 gas collection system |
| CN110597113A (en) * | 2019-09-03 | 2019-12-20 | 国网福建省电力有限公司检修分公司 | SF6 tail gas electronic control type air collecting bag and control method thereof |
-
2014
- 2014-09-26 CN CN201420558780.7U patent/CN204165180U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214884A (en) * | 2014-09-26 | 2014-12-17 | 国网河南省电力公司南阳供电公司 | Sulfur hexafluoride waste gas exhausting and collecting system for transformer substation |
| CN104214884B (en) * | 2014-09-26 | 2017-02-15 | 国网河南省电力公司南阳供电公司 | Sulfur hexafluoride waste gas exhausting and collecting system for transformer substation |
| CN105864633A (en) * | 2016-03-25 | 2016-08-17 | 国网北京市电力公司 | SF6 gas collection system |
| CN110597113A (en) * | 2019-09-03 | 2019-12-20 | 国网福建省电力有限公司检修分公司 | SF6 tail gas electronic control type air collecting bag and control method thereof |
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| C14 | Grant of patent or utility model | ||
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