CN1943822B - A fire fighting unit used to put out the fire on transformer and oil tank - Google Patents
A fire fighting unit used to put out the fire on transformer and oil tank Download PDFInfo
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- CN1943822B CN1943822B CN200610032441A CN200610032441A CN1943822B CN 1943822 B CN1943822 B CN 1943822B CN 200610032441 A CN200610032441 A CN 200610032441A CN 200610032441 A CN200610032441 A CN 200610032441A CN 1943822 B CN1943822 B CN 1943822B
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Abstract
The invention discloses a fire unit for transformers or oil tanks comprising the control system, oil drain pipelines and nitrogen injection pipelines. The said electromagnet used for the control of the vent valve in the control system is double-action electromagnet; a mechanical interlock device is introduced in oil drain valve and nitrogen injection valve. The mechanical interlock device is a device of which the all-or-nothing piece of the oil drain valve is a cam lever, one end of even levers contacts corresponding to cam of cam levers, with the other end transmission linked with all-or-nothing piece of the nitrogen injection valve. With a pipeline leakage collection plate on oil drain pipeline of micro-leakage windows and a dropper on the leakage collection plate corresponding to the window glass. The invention is a fire unit used in transformers and oil tanks, overcomes the deficiencies of oil-drained nitrogen injected fire unit on current markets, more reliable, simple in structure and convenient to produce.
Description
Technical field
The present invention relates to a kind of extinguishing device, particularly relate to a kind of extinguishing device that is used for oil-filled transformer and oil tank.
Background technology
The oil draining nitrogen filling fire extinguishing system that is used for transformer and oil tank by control system, FHC, cut-off valve, oil extraction pipeline, annotate nitrogen pipeline etc. and form, be used for that having of oil-filled transformer and oil tank is explosion-proof, the device of fire prevention and fire-extinguishing function concurrently.The oil extraction pipeline is connected transformer top, by draining valve control system oil extraction pressure release, mainly comprise oil-drain pipe, draining valve, service valve, expansion joint etc., the unlatching lever of draining valve is furnished with weight and by a magnet control, electromagnet is opened by control system control.Annotate the nitrogen pipeline and connect high-pressure nitrogen bottle and transformer, to transformer bottom nitrogen injection, mainly comprise and annotate nitrogen pipeline, nitrogen injecting valua, oil gas barrier assembly, service valve, bottle valve etc. by nitrogen injecting valua control.Its extinguishing mechanism is: when inner breaking out of fire of transformer or explosion danger, control system starts the electromagnet of weight, weight drives draining valve and opens, the beginning oil extraction, cut-off valve is closed simultaneously, cuts off conservator to transformer body fuel feeding, and the transformer oil fuel level in tank reduces, oil pressure alleviates, and prevents the transformer blast.Through the several seconds time-delay, control system is restarted nitrogen injecting valua, and the nitrogen in the high-pressure nitrogen bottle enters the oil tank of transformer bottom by annotating the nitrogen pipeline, charges into the transformer body, fully stirs intrinsic transformer oil, makes oily temperature drop to burning-point, avoids fire hazard.The effect of cut-off valve is an oil draining nitrogen filling device when carrying out the quick oil extraction of accident, cuts off the oil stream between conservator and the body fuel tank automatically, prevents " adding fuel to the flames ".
At present, be used to protect the oil draining nitrogen filling fire extinguishing device of oil-immersed type transformer to exist following deficiency on the market:
1, the high-pressure nitrogen bottle that is used for stored nitrogen is long-term the unlatching, and the flexible pipe that is connected with it is in high pressure conditions simultaneously, and nitrogen injecting valua is positioned at the flexible pipe back, because connecting link is too much, very easily causes the high pressure nitrogen leakage.
2, high-pressure nitrogen bottle is filled with the gases at high pressure of 15Mpa, can not surpass 0.5Mpa and the pressure that this physical efficiency of transformer is born is the highest.Whole oil draining nitrogen filling fire extinguishing device has only the release of a valve control nitrogen, easily because reasons such as thunder and lightning, line fault, maloperation cause misoperation, in case misoperation, up to the direct injection transformer body of the gases at high pressure of 15Mpa, because this moment, draining valve was not opened, and will cause very serious consequence.In addition, after the nitrogen injecting valua long-time running, sealing property is affected certainly, and the micro-leakage of nitrogen is inevitable, and a spot of nitrogen enters in the transformer body, also will cause great potential safety hazard.
3, draining valve is only opened by a magnet control, because reasons such as thunder and lightning, line fault, maloperation cause the malfunction oil extraction, causes serious accident easily.
4, easily generation leakage of oil after the draining valve long-term work, a small amount of leakage of oil can't be oozed dew so that gradually go on foot to become in a large number by present observation window observation, has a strong impact on the normal safe operation of transformer.
Owing to there is above defective, though the oil draining nitrogen filling system has gone up in some unit, dare not come into operation, to deal with fire-fighting purely and check and accept, whole system performs practically no function.
Summary of the invention
Technical problem to be solved by this invention provides a kind of extinguishing device that is used for transformer and oil tank, and this device can improve the accuracy of control draining valve and nitrogen injecting valua unlatching, solves the problem that has misoperation in the current device.
The technical solution used in the present invention is: a kind of extinguishing device that is used for transformer or oil tank, comprise control system, oil extraction pipeline and notes nitrogen pipeline, the electromagnet that is used to control the draining valve on the oil extraction pipeline on the described control system is two independently two electromagnet of control circuit control, and described draining valve and described nitrogen injecting valua adopt mechanical interlocks.
Described mechanical interlocks is that the unlatching lever of described draining valve is a cam lever, trace one end and the corresponding contact of cam on the described cam lever, and the all-or-nothing piece of the other end and described nitrogen injecting valua is in transmission connection.
This device is opened by two magnet control draining valves, adopts two independently two electromagnet of control circuit control, can reliably prevent because the malfunction oil extraction is avoided in the misoperation that reasons such as thunder and lightning, line fault, maloperation cause.Nitrogen injecting valua is opened by the mechanical interlock mechanism that is connected with draining valve, before draining valve is not opened, nitrogen injecting valua can not opened, even the control valve malfunction of self sealss bottle is opened, high pressure nitrogen can the injection transformer body yet, has prevented reliably because misoperation makes the major accident of nitrogen injection transformer.
Also include little leakage form in the described oil extraction pipeline, be provided with the seepage catch tray that adapts to oil exit pipe in described little leakage form, described seepage catch tray is provided with the dropper corresponding with described sight glass.
The structure of the breather valve in the described notes nitrogen pipeline is made up of breathing valve body, spring, silica gel head, spool, back-up ring, described back-up ring is positioned at described spool in the described breathing valve body, between described spool and described breathing valve body, be provided with spring, be provided with the silica gel head at described spool front end.Nitrogen as trace is revealed by a self sealss bottle control valve and nitrogen injecting valua, can directly drain into atmosphere by breather valve.When beginning to annotate nitrogen, to annotate nitrogen pipeline air pressure and increase rapidly, breather valve can cut out automatically, guarantees the fire extinguishing effect.
Adopt the extinguishing device that is used for transformer or oil tank of technique scheme, on the basis of existing oil draining nitrogen filling fire extinguishing device, increased the mechanical interlocks, breather valve, little leakage form, two electromagnet of a self sealss bottle control valve, nitrogen injecting valua and draining valve etc.This apparatus structure is simple, easy for installation, good reliability; Exclusive wide spectrum fire-fighting technique; Possess explosion-proof, fire prevention, fire-extinguishing function concurrently; Twin-core protection, two-stage interlocking, errorless spray may; Micro-leakage of oil is reliably monitored in unique little leakage form design; Hang down and let out the high resistant breather valve, reliably guarantee transformer safety.
In sum, the present invention is a kind of extinguishing device that is used for transformer and oil tank, solved the deficiency of oil draining nitrogen filling fire extinguishing device existence in the market, this device can improve the accuracy of control draining valve and nitrogen injecting valua unlatching, solve the problem that has misoperation in the current device, dependable performance, simple in structure, easily manufactured.
Description of drawings
Fig. 1 is an oil draining nitrogen filling fire extinguishing device structural representation of the present invention;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is a breather valve structural representation of the present invention;
Fig. 4 is the little leakage window structure of a present invention schematic diagram;
Fig. 5 is that two electromagnet weights of the present invention are opened the valve structure schematic diagram.
The specific embodiment
Referring to Fig. 1, Fig. 2 and Fig. 5, on the pipeline between transformer body 2 and the conservator 45, cut-off valve 4 is housed; The oil extraction pipeline is divided into horizontally-arranged oil pipe 7 and vertical setting of types oil pipe 8, and the oil extraction pipeline is provided with oil exit pipe butterfly valve 5, air bleeding valve 6, pressure switch 9, maintenance butterfly valve 10, little leakage form 19, draining valve 18, drain line 21 are installed; Annotate nitrogen pipe 12 and butterfly valve 11, gs-oil separator 13, breather valve 14, nitrogen injecting valua 17, pressure-reducing valve 16, a self sealss bottle control valve 15 connection transformer body 2 and high-pressure nitrogen bottles 20 are installed by annotating the nitrogen pipe; Pressure switch 9, maintenance butterfly valve 10, little leakage form 19, draining valve 18, gs-oil separator 13, breather valve 14, nitrogen injecting valua 17, pressure-reducing valve 16, a self sealss bottle control valve 15 and high-pressure nitrogen bottle 20 etc. are located in the FHC 1; Cut-off valve 4, pressure switch 9 are connected with control system; Draining valve 18 is provided with cam lever 25, cam lever 25 ends are provided with independently two electromagnet 22 controlling of control circuit of weight 23 and be connected with control system two, cam 251 corresponding contacts on trace 24 1 ends and the cam lever 25, the all-or-nothing piece 171 of the other end and nitrogen injecting valua 17 is in transmission connection.
Referring to Fig. 1, Fig. 2 and Fig. 5, this device adopt two independently 22, two electromagnet 22 of control circuit two electromagnet of control starts simultaneously weight 23 is fallen, drive cam lever 25 and make draining valve 18 unlatchings; Cam 251 on the cam lever 25 drives trace 24 and opens nitrogen injecting valua 17 by all-or-nothing piece 171; When beginning to annotate nitrogen, control system starts a self sealss bottle control valve 15, and high pressure nitrogen is through a self sealss bottle control valve 15, pressure-reducing valve 16, nitrogen injecting valua 17,13 pairs of transformer body 2 nitrogen injections of gs-oil separator.Nitrogen injecting valua 17 is opened by the mechanical interlock mechanism that is connected with draining valve 18.
As shown in Figure 3, breather valve 14 is on the notes nitrogen pipeline between nitrogen injecting valua 17 and the gs-oil separator 13.Breather valve 14 is made up of breathing valve body 31, spring 32, silica gel head 33, spool 34, back-up ring 35, and back-up ring 35 is positioned at spool 34 and breathes in the valve body 31, is provided with spring 32 between spool 34 and breathing valve body 31, is provided with silica gel head 33 at spool 34 front ends.
As shown in Figure 4, the present invention adopts little leakage form 19 to replace traditional oil draining nitrogen filling fire extinguishing device to be positioned at the observation window of draining valve rear end.Little leakage form 19 is made up of seepage catch tray 40, dropper 41, sight glass 43 etc., and seepage catch tray 40 is installed in the oil exit pipe, and seepage catch tray 40 is provided with the dropper 41 corresponding with sight glass 43.
Compared with prior art, advantage of the present invention just is:
1. this device is opened by two electromagnet, 22 control draining valves 18, adopts two independently two electromagnet 22 of control circuit control, can reliably prevent because the malfunction oil extraction is avoided in the misoperation that the reasons such as thunder and lightning, line fault, maloperation cause.
2. nitrogen injecting valua 17 is opened by the mechanical interlock mechanism that is connected with draining valve 18, before draining valve 18 is not opened, nitrogen injecting valua 17 can not opened, even 15 malfunctions of self-sealing bottle head control valve are opened, high pressure nitrogen can injection transformer body 2 yet, has prevented reliably because misoperation makes the major accident of nitrogen injection transformer.
3. the notes nitrogen pipeline in nitrogen injecting valua 17 back is equipped with breather valve 14, even there is the nitrogen of trace to reveal by self-sealing bottle head control valve 15 and nitrogen injecting valua 17, also can directly drain into atmosphere by breather valve 14. When oil draining nitrogen filling came into effect, air pressure increased rapidly in the notes nitrogen pipeline, but breather valve 14 autoshutdowns guarantee the fire extinguishing effect.
4. draining valve 18 rear ends are provided with little leakage form 19, and seepage catch tray 40 is collected the oil of draining valve seepage by the dropper 41 corresponding with sight glass 43 and dripped, and is convenient to observe, and can find in time that very little transformer oil reveals, and leakage is controlled at bud.
5. by above measure, can effectively prevent locking system misoperation and artificial destruction, in conjunction with the illegal invasion warning device of switch board, so that system has reliably anti-illegal invasion and the anti-function of fearing.
Comprehensive above viewpoint, this patent has solved the various drawbacks of present oil draining nitrogen filling fire extinguishing device reliably, and is safe and reliable, and control is convenient, can guarantee the safe operation of transformer, and the user is without fear of an attack from the rear, and has very high market popularization value.
Claims (5)
1. extinguishing device that is used for transformer or oil tank, comprise control system, oil extraction pipeline and notes nitrogen pipeline, it is characterized in that: the electromagnet that is used to control the draining valve (18) on the oil extraction pipeline on the described control system is two independently two electromagnet (22) of control circuit control, and described draining valve (18) and described nitrogen injecting valua (17) adopt mechanical interlocks.
2. the extinguishing device that is used for transformer or oil tank according to claim 1, it is characterized in that: described mechanical interlocks is that the unlatching lever of described draining valve (18) is cam lever (25), the corresponding contact of cam (251) on trace (24) one ends and the described cam lever (25), the all-or-nothing piece (171) of the other end and described nitrogen injecting valua (17) is in transmission connection.
3. the extinguishing device that is used for transformer or oil tank according to claim 1 and 2, it is characterized in that: also comprise little leakage form (19) in the described oil extraction pipeline, be provided with the seepage catch tray (40) that adapts to oil exit pipe in described little leakage form (19), described seepage catch tray (40) is provided with the dropper (41) corresponding with described sight glass (43).
4. the extinguishing device that is used for transformer or oil tank according to claim 1 and 2, it is characterized in that: the structure of the breather valve (14) in the described notes nitrogen pipeline is made up of breathing valve body (31), spring (32), silica gel head (33), spool (34), back-up ring (35), described back-up ring (35) is positioned at described spool (34) in the described breathing valve body (31), described spring (32) is located between described spool (34) and the described breathing valve body (31), and described silica gel head (33) is located at described spool (34) front end.
5. the extinguishing device that is used for transformer or oil tank according to claim 3, it is characterized in that: the structure of the breather valve (14) in the described notes nitrogen pipeline is made up of breathing valve body (31), spring (32), silica gel head (33), spool (34), back-up ring (35), described back-up ring (35) is positioned at described spool (34) in the described breathing valve body (31), described spring (32) is located between described spool (34) and the described breathing valve body (31), and described silica gel head (33) is located at described spool (34) front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610032441A CN1943822B (en) | 2006-10-24 | 2006-10-24 | A fire fighting unit used to put out the fire on transformer and oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610032441A CN1943822B (en) | 2006-10-24 | 2006-10-24 | A fire fighting unit used to put out the fire on transformer and oil tank |
Publications (2)
| Publication Number | Publication Date |
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| CN1943822A CN1943822A (en) | 2007-04-11 |
| CN1943822B true CN1943822B (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200610032441A Expired - Fee Related CN1943822B (en) | 2006-10-24 | 2006-10-24 | A fire fighting unit used to put out the fire on transformer and oil tank |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103599618B (en) * | 2013-12-05 | 2016-05-18 | 国网上海市电力公司 | A kind of improvement of oil draining nitrogen filling device ECU |
| CN105080001A (en) * | 2014-05-19 | 2015-11-25 | 庄孟文 | Anti-explosion fire extinguishing device for transformer |
| CN107050695A (en) * | 2017-05-08 | 2017-08-18 | 浙江日新电气有限公司 | Oil-drainage nitrogen-filling fire-extinguishing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125413U (en) * | 1992-06-02 | 1992-12-23 | 中国消防安全工程公司东北公司 | Fire extinguisher for discharging-rabbling type transformer |
| CN2180290Y (en) * | 1993-12-11 | 1994-10-26 | 河北省保定变压器厂 | Fire extinguisher for transformer |
| CN2532566Y (en) * | 2002-01-12 | 2003-01-22 | 王延敬 | Explosion-proof fire-extinguishing device for oil-immersed transformer |
| CN200963461Y (en) * | 2006-10-24 | 2007-10-24 | 长沙磐龙安全系统设备有限公司 | Fire extinguishing equipment for transformer or oil tank |
-
2006
- 2006-10-24 CN CN200610032441A patent/CN1943822B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125413U (en) * | 1992-06-02 | 1992-12-23 | 中国消防安全工程公司东北公司 | Fire extinguisher for discharging-rabbling type transformer |
| CN2180290Y (en) * | 1993-12-11 | 1994-10-26 | 河北省保定变压器厂 | Fire extinguisher for transformer |
| CN2532566Y (en) * | 2002-01-12 | 2003-01-22 | 王延敬 | Explosion-proof fire-extinguishing device for oil-immersed transformer |
| CN200963461Y (en) * | 2006-10-24 | 2007-10-24 | 长沙磐龙安全系统设备有限公司 | Fire extinguishing equipment for transformer or oil tank |
Non-Patent Citations (5)
| Title |
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| 李筠瑞.排油注氮变压器防爆防火灭火装置.上海电力 第3期.2003,(第3期),263-266. |
| 李筠瑞.排油注氮变压器防爆防火灭火装置.上海电力 第3期.2003,(第3期),263-266. * |
| 王清.500KV变电所变压器灭火系统.湖北电力第28卷增刊.2004,第28卷增刊18-21. * |
| 靳自兵.排油充氮灭火装置在电力变压器防火保护中的应用探讨.中国公共安全（学术版） 第3期.2006,(第3期),67-68. |
| 靳自兵.排油充氮灭火装置在电力变压器防火保护中的应用探讨.中国公共安全(学术版) 第3期.2006,(第3期),67-68. * |
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| CN1943822A (en) | 2007-04-11 |
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Granted publication date: 20100512 Termination date: 20161024 |