CN107050695A - Oil-drainage nitrogen-filling fire-extinguishing - Google Patents
Oil-drainage nitrogen-filling fire-extinguishing Download PDFInfo
- Publication number
- CN107050695A CN107050695A CN201710316905.3A CN201710316905A CN107050695A CN 107050695 A CN107050695 A CN 107050695A CN 201710316905 A CN201710316905 A CN 201710316905A CN 107050695 A CN107050695 A CN 107050695A
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- Prior art keywords
- nitrogen
- oil
- valve
- fuel tank
- drainage
- Prior art date
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 245
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 124
- 238000000605 extraction Methods 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 239000002828 fuel tank Substances 0.000 claims abstract description 30
- 238000012544 monitoring process Methods 0.000 claims abstract description 26
- 239000007789 gas Substances 0.000 claims description 12
- 230000000740 bleeding effect Effects 0.000 claims description 10
- 238000012806 monitoring device Methods 0.000 claims description 10
- 230000011664 signaling Effects 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/42—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with mechanical connection between sensor and actuator, e.g. rods, levers
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The present invention relates to a kind of oil-drainage nitrogen-filling fire-extinguishing.It solves the problems such as existing transformer extinguishing effect is poor.Including transformer body fuel tank, oil storage supplementary mechanism, drain line, nitrogen storing mechanism, note nitrogen pipeline and monitoring system, monitoring system is connected with control system, control system is connected with drive system, drive system includes the oil extraction drive device being connected with drain line and the nitrogen relief valve being arranged in nitrogen storing mechanism, and nitrogen relief valve is connected with oil extraction drive device by linkage structure.Advantage is：Automaticity is high, stability is high, thoroughly solve the problems, such as the misoperation that the device is produced in system application, add the on-line monitoring function and practicality of device, nitrogen charging mechanism and oil-releasing mechanism carry out Mechanical Driven using the interlocked valve of integral type, realize that oil extraction carries out note nitrogen, good extinguishing effect immediately after finishing.
Description
Technical field
The invention belongs to power supply unit technical field, more particularly, to a kind of oil-drainage nitrogen-filling fire-extinguishing.
Background technology
Nitrogen extinguisher for transformer is to be used for power plant, substation capacity in more than 2MVA large oil immersed power transformations
A kind of device of extinguishment fire suppression of device, is called oil draining nitrogen filling fireproof fire-extinguishing device.The detection of device collection, alarm, the fire extinguishing system
, it can immediately be put out a fire after starting, effectively prevent fire spread and resume combustion.Traditional nitrogen extinguisher for transformer is present
Problems, for example, nitrogen charging mechanism and oil-releasing mechanism are to rely solely on electric power to drive, it is impossible to accomplish that oil extraction is stood after finishing
Carry out note nitrogen, once and oil in transformer for exclude it is clean begin to nitrogen charging fire extinguishing and can greatly influence extinguishing effect,
Under the various complex environments in the scene of a fire, potential safety hazard is big, while traditional nitrogen extinguisher for transformer automaticity is low, the later stage
Management and maintenance exist many constant.
In order to solve the problem of prior art is present, people have carried out long-term exploration, it is proposed that miscellaneous solution
Scheme.For example, Chinese patent literature discloses a kind of oil draining nitrogen filling fire extinguishing device [application number with double oil system：
201610793321.0], the device includes：Fire hydrant cabinet, the first transformer, the second transformer, switch board and emergency oil pond, fire-fighting
Be provided with cabinet terminal box, nitrogen cylinder, the first drain line, the second drain line, be arranged on nitrogen cylinder export pipeline
One note nitrogen pipe and the second note nitrogen pipe.First pressure detector, are respectively arranged with first drain line and the second drain line
One draining valve and second pressure detector, the second draining valve.Set respectively in pipeline on the downside of first draining valve and the second draining valve
It is equipped with Oil Leakage Detecting component.First pressure detector, second pressure detector are connected by terminal box with switch board.
Such scheme solves the problem of existing transformer nitrogen filling fire extinguishing device extinguishing effect is poor to a certain extent, still
The program is still existed：Nitrogen charging mechanism and oil-releasing mechanism are to rely solely on electric power to drive, it is impossible to after accomplishing that oil extraction is finished
Note nitrogen, the low problem of automaticity are carried out immediately.
The content of the invention
Regarding the issue above, the present invention provides a kind of simple and reasonable, the high oil extraction note of automaticity
Nitrogen fire extinguishing system.
To reach above-mentioned purpose, present invention employs following technical proposal：This oil-drainage nitrogen-filling fire-extinguishing, including with use
Transformer body fuel tank in the inner chamber of storage oil plant, it is characterised in that described transformer body fuel tank side is connected with storage
Oily supplementary mechanism, opposite side is connected with the outside of drain line, described transformer body fuel tank and is provided with the nitrogen for being used for storing nitrogen
Gas storing mechanism, described nitrogen storing mechanism is connected with the note nitrogen pipeline extended in transformer body fuel tank, and the system is also
Including monitoring system, described monitoring system is connected with control system, and described control system is connected with drive system, the drive
Dynamic system includes the oil extraction drive device being connected with drain line and the nitrogen relief valve being arranged in nitrogen storing mechanism, and
Described nitrogen relief valve is connected with oil extraction drive device by linkage structure.Present system solves original extinguishing device
Deficiency, the functional reliability of fire extinguishing system can be effectively improved, stability thoroughly solves what the device was produced in system application
Misoperation problem, adds the on-line monitoring function and practicality of device.
In above-mentioned oil-drainage nitrogen-filling fire-extinguishing, described linkage structure includes the interlocked valve being arranged on oil exit pipe,
Described interlocked valve one end is connected by noting nitrogen connecting tube with nitrogen relief valve, and the other end is by noting nitrogen transfer tube and note nitrogen pipeline
It is connected, described interlocked valve lower end is connected with live locking device, and described live locking device is driven by weight and oil extraction
Dynamic device is connected.
In above-mentioned oil-drainage nitrogen-filling fire-extinguishing, described drain line passes through oil extraction butterfly valve and transformer body fuel tank
It is connected, drain line air bleeding valve is provided with drain line, described transformer body fuel tank side is provided with fire hydrant cabinet, described
Fire hydrant cabinet is provided with the oil extraction body for being connected with drain line and being set in vertical shape, described oil extraction bottom of the pipe and oil guide pipe
It is connected, and provided with maintenance signaling switch on oil extraction body, and described maintenance signaling switch is connected with service valve.
In above-mentioned oil-drainage nitrogen-filling fire-extinguishing, described nitrogen storing mechanism includes nitrogen cylinder, described nitrogen cylinder
Upper end has the bottle valve being connected with nitrogen relief valve.
In above-mentioned oil-drainage nitrogen-filling fire-extinguishing, isolate between described note nitrogen transfer tube and note nitrogen pipeline provided with oil gas
Device, flow control valve and low height of letting out seal valve, described note nitrogen pipeline is provided with note nitrogen pipeline air bleeding valve.
In above-mentioned oil-drainage nitrogen-filling fire-extinguishing, described oil storage supplementary mechanism includes being arranged on transformer body fuel tank
The oil conservater of top, described oil conservater is connected by connecting tube with transformer body fuel tank, described connecting tube and oil storage
Cut-off valve is provided between cabinet.
In above-mentioned oil-drainage nitrogen-filling fire-extinguishing, described monitoring system includes the detection for being used to detect oil temperature
Device, the Buchholz relay for monitoring gas density, the pressure relief valve for monitoring tank internal pressure, for drain line
The oil leakage monitoring device of detection, the nitrogen margin monitoring device for nitrogen undervoltage warning and the nitrogen for noting nitrogen action feedback
Gas signal feedback device.
In above-mentioned oil-drainage nitrogen-filling fire-extinguishing, described nitrogen margin monitoring device include being arranged on bottle valve and
The electric node manometer and pressure-reducing valve being connected respectively with nitrogen relief valve.
In above-mentioned oil-drainage nitrogen-filling fire-extinguishing, described control system includes the switch board with control centre, and
Described control centre is connected with linkage structure and monitoring system respectively.
In above-mentioned oil-drainage nitrogen-filling fire-extinguishing, described note nitrogen pipeline is horizontally extending to transformer body oil
Bottom side inside case, and described note nitrogen pipeline notes nitrogen pipeline ball valves provided with some.
Compared with prior art, the advantage of this oil-drainage nitrogen-filling fire-extinguishing is：Simple in construction, automaticity is high,
Stability is high, thoroughly solves the problems, such as the misoperation that the device is produced in system application, adds the on-line monitoring function of device
And practicality, nitrogen charging mechanism and oil-releasing mechanism carry out Mechanical Driven using the interlocked valve of integral type, realize oil extraction finish after immediately
Carry out note nitrogen, good extinguishing effect.
Brief description of the drawings
The structural representation that Fig. 1 provides for the present invention.
Fig. 2 is the sectional view at A in Fig. 1.
The structured flowchart for the monitoring system that Fig. 3 provides for the present invention.
In figure, oil conservater 1, cut-off valve 2, transformer body fuel tank 3, fire detector 4, oil extraction butterfly valve 5, drain line 6,
Note nitrogen pipeline air bleeding valve 7, drain line air bleeding valve 8, oil extraction body 9, nitrogen signal feedback device 10, low height of letting out seal valve 11, inspection
Repair signaling switch 12, service valve 13, interlocked valve 14, fire hydrant cabinet 15, live locking device 16, oil extraction drive device 17, oil leak prison
Survey device 18, weight 19, oil guide pipe 20, oil gas isolating device 21, flow control valve 22, nitrogen relief valve 24, pressure-reducing valve 23, electricity
Node pressure table 25, bottle valve 26, nitrogen cylinder 27, note nitrogen pipeline 28, note nitrogen pipeline ball valve 29, note nitrogen connecting tube 30, gas after
Electrical equipment 31, pressure relief valve 32, switch board 33, oil storage supplementary mechanism 34, nitrogen storing mechanism 35, monitoring system 36, control system
System 37.
Embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As Figure 1-3, this oil-drainage nitrogen-filling fire-extinguishing, including the transformer body with the inner chamber for depositing oil plant
Fuel tank 3, the side of transformer body fuel tank 3 is connected with oil storage supplementary mechanism 34, and opposite side is connected with drain line 6, transformer sheet
The outside of body fuel tank 3 is provided with the nitrogen storing mechanism 35 for being used for storing nitrogen, and nitrogen storing mechanism 35, which is connected with, extends to transformer
Note nitrogen pipeline 28 in body fuel tank 3, note nitrogen pipeline 28 is horizontally extending to the inside bottom side of transformer body fuel tank 3, and
Nitrogen pipeline 28 is noted provided with some note nitrogen pipeline ball valves 29, the system also includes monitoring system 36, and described monitoring system 36 connects
It is connected to control system 37, it is preferable that control system 37 here includes the switch board 33 with control centre, and control centre point
It is not connected with linkage structure and monitoring system 36, control system 37 is connected with drive system, drive system includes and drain line 6
Connected oil extraction drive device 17 and the nitrogen relief valve 24 being arranged in nitrogen storing mechanism 35, and the He of nitrogen relief valve 24
Oil extraction drive device 17 is connected by linkage structure.Present system solves the deficiency of original extinguishing device, can effectively carry
The functional reliability of high fire extinguishing system, stability thoroughly solves the problems, such as the misoperation that the device is produced in system application, increase
The on-line monitoring function and practicality of device.
Specifically, linkage structure here includes the interlocked valve 14 being arranged on oil exit pipe, and the one end of interlocked valve 14 passes through note
Nitrogen connecting tube 30 is connected with nitrogen relief valve 24, and the other end is connected by noting nitrogen transfer tube with note nitrogen pipeline 28, under interlocked valve 14
End is connected with live locking device 16, and live locking device 16 is connected by weight 19 with oil extraction drive device 17.
Wherein, drain line 6 here is connected by oil extraction butterfly valve 5 with transformer body fuel tank 3, on drain line 6
Provided with drain line air bleeding valve 8, the side of transformer body fuel tank 3 is provided with fire hydrant cabinet 15, and fire hydrant cabinet 15 is provided with and drain line 6
The oil extraction body 9 for being connected and being set in vertical shape, the lower end of oil extraction body 9 is connected with oil guide pipe 20, and is provided with oil extraction body 9
Signaling switch 12 is overhauled, and described maintenance signaling switch 12 is connected with service valve 13, nitrogen storing mechanism 35 here includes
Nitrogen cylinder 27, the upper end of nitrogen cylinder 27 has the bottle valve 26 being connected with nitrogen relief valve 24.
Further, here oil gas isolating device 21, Flow-rate adjustment are provided between note nitrogen transfer tube and note nitrogen pipeline 28
Valve 22 and low height of letting out seal valve 11, and note nitrogen pipeline 28 is provided with note nitrogen pipeline air bleeding valve 7.
Wherein, oil storage supplementary mechanism 34 here includes the oil conservater 1 for being arranged on the top of transformer body fuel tank 3, oil storage
Cabinet 1 is connected by connecting tube with transformer body fuel tank 3, and cut-off valve 2 is provided between connecting tube and oil conservater 1.
Here monitoring system 36 includes being used to detect the fire detector 4 of oil temperature, the gas for monitoring gas density
Relay 31, the pressure relief valve 32 for monitoring tank internal pressure, the oil leakage monitoring device detected for drain line 6
18th, the nitrogen signal feedback device for the nitrogen margin monitoring device of nitrogen undervoltage warning and for noting nitrogen action feedback
10；Wherein, nitrogen margin monitoring device here includes what is be arranged on bottle valve 26 and be connected respectively with nitrogen relief valve 24
Electric node manometer 25 and pressure-reducing valve 23.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although more having used oil conservater 1, cut-off valve 2, transformer body fuel tank 3, fire detector 4, oil extraction herein
Butterfly valve 5, drain line 6, note nitrogen pipeline air bleeding valve 7, drain line air bleeding valve 8, oil extraction body 9, nitrogen signal feedback device 10,
It is low to let out high envelope valve 11, maintenance signaling switch 12, service valve 13, interlocked valve 14, fire hydrant cabinet 15, live locking device 16, oil extraction drive
Dynamic device 17, oil leakage monitoring device 18, weight 19, oil guide pipe 20, oil gas isolating device 21, flow control valve 22, nitrogen release
Valve 24, pressure-reducing valve 23, electric node manometer 25, bottle valve 26, nitrogen cylinder 27, note nitrogen pipeline 28, note nitrogen pipeline ball valve 29, note nitrogen
Connecting tube 30, Buchholz relay 31, pressure relief valve 32, switch board 33, oil storage supplementary mechanism 34, nitrogen storing mechanism 35, prison
The terms such as examining system 36, control system 37, but it is not precluded from the possibility using other terms.The use of these terms is only to be
More easily describe and explain the essence of the present invention；Being construed as any additional limitation is all and present invention essence
What god disagreed.
Claims (10)
1. a kind of oil-drainage nitrogen-filling fire-extinguishing, including the transformer body fuel tank (3) with the inner chamber for depositing oil plant, it is special
Levy and be, described transformer body fuel tank (3) side is connected with oil storage supplementary mechanism (34), and opposite side is connected with drain line
(6) the nitrogen storing mechanism (35) for being used for storing nitrogen, described nitrogen, are provided with the outside of described transformer body fuel tank (3)
Storing mechanism (35) is connected with the note nitrogen pipeline (28) extended in transformer body fuel tank (3), and the system also includes monitoring system
Unite (36), described monitoring system (36) is connected with control system (37), and described control system (37) is connected with drive system,
The drive system includes the oil extraction drive device (17) being connected with drain line (6) and is arranged on nitrogen storing mechanism (35)
On nitrogen relief valve (24), and described nitrogen relief valve (24) is connected with oil extraction drive device (17) by linkage structure.
2. oil-drainage nitrogen-filling fire-extinguishing according to claim 1, it is characterised in that described linkage structure includes being arranged on
Interlocked valve (14) on oil exit pipe, described interlocked valve (14) one end is by noting nitrogen connecting tube (30) and nitrogen relief valve (24) phase
Even, the other end is connected by noting nitrogen transfer tube with note nitrogen pipeline (28), and described interlocked valve (14) lower end is connected with live locking
Device (16), and described live locking device (16) is connected by weight (19) with oil extraction drive device (17).
3. oil-drainage nitrogen-filling fire-extinguishing according to claim 2, it is characterised in that described drain line (6) passes through row
Oily butterfly valve (5) is connected with transformer body fuel tank (3), and drain line air bleeding valve (8) is provided with drain line (6), described
Transformer body fuel tank (3) side is provided with fire hydrant cabinet (15), described fire hydrant cabinet (15) provided with being connected with drain line (6) and
The oil extraction body (9) set in vertical shape, described oil extraction body (9) lower end is connected with oil guide pipe (20), and in oil extraction body
(9) provided with maintenance signaling switch (12), and described maintenance signaling switch (12) is connected with service valve (13).
4. oil-drainage nitrogen-filling fire-extinguishing according to claim 3, it is characterised in that described nitrogen storing mechanism (35) bag
Nitrogen cylinder (27) is included, described nitrogen cylinder (27) upper end has the bottle valve (26) being connected with nitrogen relief valve (24).
5. oil-drainage nitrogen-filling fire-extinguishing according to claim 2, it is characterised in that described note nitrogen transfer tube and note nitrogen pipe
Between road (28) valve (11), described note nitrogen pipe are sealed provided with oil gas isolating device (21), flow control valve (22) and low height of letting out
Road (28) is provided with note nitrogen pipeline air bleeding valve (7).
6. oil-drainage nitrogen-filling fire-extinguishing according to claim 5, it is characterised in that described oil storage supplementary mechanism (34) bag
The oil conservater (1) being arranged on above transformer body fuel tank (3) is included, described oil conservater (1) passes through connecting tube and transformer sheet
Body fuel tank (3) is connected, and cut-off valve (2) is provided between described connecting tube and oil conservater (1).
7. oil-drainage nitrogen-filling fire-extinguishing according to claim 4, it is characterised in that described monitoring system (36) includes using
In the fire detector (4) of detection oil temperature, the Buchholz relay (31) for monitoring gas density, for monitoring fuel tank internal pressure
The pressure relief valve (32) of power, the oil leakage monitoring device (18) detected for drain line (6), the nitrogen for nitrogen undervoltage warning
Gas margin monitoring device and the nitrogen signal feedback device (10) for noting nitrogen action feedback.
8. oil-drainage nitrogen-filling fire-extinguishing according to claim 7, it is characterised in that described nitrogen margin monitoring device bag
Include the electric node manometer (25) and pressure-reducing valve (23) for being arranged on bottle valve (26) and being connected respectively with nitrogen relief valve (24).
9. the oil-drainage nitrogen-filling fire-extinguishing according to any one in claim 1-8, it is characterised in that described control system
Unite (37) include the switch board (33) with control centre, and described control centre respectively with linkage structure and monitoring system
(36) it is connected.
10. oil-drainage nitrogen-filling fire-extinguishing according to claim 9, it is characterised in that described note nitrogen pipeline (28) is along water
Square to extending to the internal bottom side of transformer body fuel tank (3), and described note nitrogen pipeline (28) is provided with some note nitrogen pipelines
Ball valve (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710316905.3A CN107050695A (en) | 2017-05-08 | 2017-05-08 | Oil-drainage nitrogen-filling fire-extinguishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710316905.3A CN107050695A (en) | 2017-05-08 | 2017-05-08 | Oil-drainage nitrogen-filling fire-extinguishing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107050695A true CN107050695A (en) | 2017-08-18 |
Family
ID=59596244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710316905.3A Pending CN107050695A (en) | 2017-05-08 | 2017-05-08 | Oil-drainage nitrogen-filling fire-extinguishing |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281894A (en) * | 2018-03-22 | 2018-07-13 | 中国能源建设集团云南省电力设计院有限公司 | Fire alarm and coordinated control system inside and outside a kind of transformer sleeper fire |
| CN110504086A (en) * | 2019-09-16 | 2019-11-26 | 孙铭阳 | The pneumatic oil draining system of transformer fault |
| CN110935122A (en) * | 2019-12-26 | 2020-03-31 | 中国能源建设集团云南省电力设计院有限公司 | Fire extinguishing pipeline and transformer disconnection fire-fighting linkage oil discharge-nitrogen injection fire extinguishing device |
| CN111013051A (en) * | 2019-12-07 | 2020-04-17 | 国网辽宁省电力有限公司电力科学研究院 | Oil-immersed transformer oil-discharging nitrogen-injecting fire extinguishing device calibration system and method |
| CN112370711A (en) * | 2020-11-29 | 2021-02-19 | 国网辽宁省电力有限公司电力科学研究院 | Transformer oil extraction fills nitrogen and puts out a fire and uses state monitoring device |
| CN112504659A (en) * | 2020-10-28 | 2021-03-16 | 国网山东省电力公司青岛供电公司 | Transformer nitrogen-charging fire-extinguishing cut-off valve action threshold value checking system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281894A (en) * | 2018-03-22 | 2018-07-13 | 中国能源建设集团云南省电力设计院有限公司 | Fire alarm and coordinated control system inside and outside a kind of transformer sleeper fire |
| CN110504086A (en) * | 2019-09-16 | 2019-11-26 | 孙铭阳 | The pneumatic oil draining system of transformer fault |
| CN111013051A (en) * | 2019-12-07 | 2020-04-17 | 国网辽宁省电力有限公司电力科学研究院 | Oil-immersed transformer oil-discharging nitrogen-injecting fire extinguishing device calibration system and method |
| CN111013051B (en) * | 2019-12-07 | 2023-06-16 | 国网辽宁省电力有限公司电力科学研究院 | Verification system and method for oil-discharging and nitrogen-injecting fire extinguishing device of oil-immersed transformer |
| CN110935122A (en) * | 2019-12-26 | 2020-03-31 | 中国能源建设集团云南省电力设计院有限公司 | Fire extinguishing pipeline and transformer disconnection fire-fighting linkage oil discharge-nitrogen injection fire extinguishing device |
| CN110935122B (en) * | 2019-12-26 | 2024-03-01 | 中国能源建设集团云南省电力设计院有限公司 | Fire extinguishing pipeline and transformer disconnection fire-fighting linkage oil discharge-nitrogen injection fire extinguishing device |
| CN112504659A (en) * | 2020-10-28 | 2021-03-16 | 国网山东省电力公司青岛供电公司 | Transformer nitrogen-charging fire-extinguishing cut-off valve action threshold value checking system and method |
| CN112370711A (en) * | 2020-11-29 | 2021-02-19 | 国网辽宁省电力有限公司电力科学研究院 | Transformer oil extraction fills nitrogen and puts out a fire and uses state monitoring device |
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Application publication date: 20170818 |