CN200987848Y - Transformer fire-fighting device control circuit - Google Patents
Transformer fire-fighting device control circuit Download PDFInfo
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- CN200987848Y CN200987848Y CN 200620128565 CN200620128565U CN200987848Y CN 200987848 Y CN200987848 Y CN 200987848Y CN 200620128565 CN200620128565 CN 200620128565 CN 200620128565 U CN200620128565 U CN 200620128565U CN 200987848 Y CN200987848 Y CN 200987848Y
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- opened contact
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Abstract
A transformer fire extinguishing appliance control circuit used to solve the problem of transformer fire control circuit anti-emi and safety performance difference, which belongs to fire fighting unit technology field. The technical scheme is: the control circuit consists of a power circuit and a fire extinguishing control circuit, the power circuit consists of a dc power supply and relay J1 and J2, the dc power supply is two groups which are respectively the first dc power supply DC1 and the second dc power supply DC2; After the relay J1 coil and the relay J2 normally closed contact J2-1 series connection, the first dc power supply DC1 is connected with it. After the relay J2 coil and the relay J1 normally closed contact J1-1 series connection, the second dc power supply DC1 is connected with it. The two dc power supplies are respectively connected to the supply terminal of the fire extinguishing control circuit through the normally open contact J1-2 and normally open contact J2-2, the voltage of the two dc power supplies is 220V. The utility model is safe and reliable, which provides strong anti electromagnetic interference ability.
Description
Technical field
The utility model relates to a kind of improved transformer extinguishing device control circuit, belongs to the fire plant technical field.
Background technology
Oil immersed power transformer will be considered the danger of breaking out of fire when design, because short circuit, the internal arc that overvoltage etc. cause can make the oil temperature surpass burning-point, and decomposites various fuel gas.In case because inner overpressure causes fuel tank to break, cause oxygen to enter, the chance naked light is lighted on fire at once, causes heavy losses.During the transformer breaking out of fire, generally adopt the method for oil extraction-notes nitrogen to put out a fire, this method is earlier the part oil in the fuel tank to be drained, and injects low temperature nitrogen again in fuel tank, makes low, the fray-out of flame of oily temperature drop.Oil extraction-notes nitrogen fire-fighting device mainly comprises oil exit pipe, oil drain solenoid valve, nitrogen cylinder, notes nitrogen pipe, annotates nitrogen open valve and control circuit.Wherein, oil drain solenoid valve is installed on the oil exit pipe, annotates the nitrogen open valve and is installed on the notes nitrogen pipe.During breaking out of fire, the fire detector of control circuit (is installed near the oil tank of transformer line outlet, be used for detected temperatures) and gas relay (be installed on the oil pipe between oil tank of transformer and the conservator, be used to detect the fuel gas in the fuel tank) detect corresponding signal after, fire-fighting device starts the fire extinguishing program.Control circuit is opened oil drain solenoid valve earlier, makes the part oil in the fuel tank be excreted to emergency oil pond through oil exit pipe, and then will annotate the nitrogen open valve and open, and makes the high pressure nitrogen decompression in the fire extinguishing box after annotate the nitrogen pipe and enters the fuel tank fire extinguishing.Correspondingly, the fire extinguishing control circuit should guarantee that said procedure is smooth.But existing control circuit exists the disadvantage of anti-electromagnetic interference capability and anti-thunderbolt poor-performing.In addition, solenoid is still long charged if oil drain solenoid valve is opened the back, and its security is also relatively poor.In addition, adopt single power supply, in case power supply breaks down, whole device will be paralysed, and this also makes the reliability of fire plant greatly reduce.
Summary of the invention
The purpose of this utility model is to provide a kind of safe and reliable, transformer extinguishing device control circuit that anti-electromagnetic interference capability is strong.
The alleged problem of the utility model realizes with following technical proposals:
A kind of transformer extinguishing device control circuit is made up of power circuit and fire extinguishing control circuit, and described power circuit is made up of dc source and relay J 1, J2, and described dc source is two groups, is respectively the first dc source DC1 and the second dc source DC2; The coil of described relay J 1 with meet the first dc source DC1 after the normally-closed contact J2-1 of relay J 2 connects, the coil of described relay J 2 with meet the second dc source DC2 after the normally-closed contact J1-1 of relay J 1 connects, described two dc sources are connected to the power end of fire extinguishing control circuit through the normally opened contact J1-2 of relay J 1, the normally opened contact J2-2 of relay J 2 respectively, and the voltage of described two dc sources is 220V.
Above-mentioned transformer extinguishing device control circuit, described fire extinguishing control circuit is by oil drain solenoid valve L, annotate nitrogen open valve Y, fire detector QT, gas relay KG, relay J 3, J4, J5 forms, described notes nitrogen open valve Y is installed on and annotates on the nitrogen pipe 6, oil drain solenoid valve L is installed on the oil exit pipe, fire detector QT is installed on by the oil tank of transformer line outlet, gas relay KG is installed on the oil pipe between fuel tank and the conservator, the control coil of the normally opened contact serial connection relay J 5 of described gas relay KG, the normally opened contact J5-1 of relay J 5 is connected in parallel on the normally opened contact of gas relay KG; Be connected on the power supply after the normally opened contact J5-2 of the normally opened contact of described fire detector QT, relay J 5 and the series connection of the control coil of relay J 3; The control coil of the time-delay normally opened contact J3-2 serial connection control relay J4 of described relay J 3; The control coil of two chain normally opened contact J3-1 serial connection back control oil drain solenoid valve L of two chain normally-closed contact J4-1 of described relay J 4 and relay J 3, two chain normally opened contact J4-2 serial connections of described relay J 4 are annotated the control coil of nitrogen open valve Y.
Above-mentioned transformer extinguishing device control circuit is set up a K switch, and described K switch is connected in parallel on the normally opened contact J5-2 of the fire detector QT normally opened contact of serial connection and relay J 5.
It is power supply that the utility model adopts two DC220V power supplys of throwing mutually, not only can increase the anti-electromagnetic interference performance of circuit, and effectively avoid the unstability of ac circuit.The chain normally-closed contact J4-1 of relay J 4 is series in the loop of oil drain solenoid valve L, can make the fire extinguishing control circuit after notes nitrogen open valve Y is opened, automatically oil drain solenoid valve L and circuit are isolated, avoided the generation of the long-term charged situation of oil drain solenoid valve L, increased the security of circuit greatly.The utility model is not only safe and reliable, and has stronger anti-electromagnetic interference capability.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model main element scheme of installation;
Fig. 2 is an electrical schematic diagram.
Each label is among the figure: 1, fuel tank, and 2, the fire extinguishing control cabinet, 3, emergency oil pond, 4, fire extinguishing box, 5, oil exit pipe, 6, annotate the nitrogen pipe, 7, conservator, Y, annotate nitrogen open valve, L, oil drain solenoid valve, QT, fire detector, KG, gas relay.
The specific embodiment
Among Fig. 1, annotating nitrogen open valve Y is installed on the notes nitrogen pipe 6, oil drain solenoid valve L is installed on the oil exit pipe 5, fire detector QT is installed on oil tank of transformer line outlet next door, gas relay KG is installed on the oil pipe between fuel tank 1 and the conservator 7, and other electric elements of fire extinguishing control circuit all are installed in the fire extinguishing control cabinet 2.
Among Fig. 2, dc source DC1, DC2 and relay J 1, J2 form dual power supply and throw the loop mutually, and relay J 1, J2 can only have one to be in closure state.If the J1 closure, then the coil of J2 is opened a way, and the first dc source DC1 exports electric energy, if J1 or DC1 break down, and J2 closure then, DC2 exports electric energy, and the power supply of assurance system is reliable.
The operation principle of fire extinguishing control circuit: under the normal condition, fire detector QT and gas relay K G are in off-state, and relay J 3, J4, J5 are failure to actuate.When fire fire takes place, when temperature is elevated to a certain numerical value, fire detector QT conducting.Fire produces a large amount of fuel gas when taking place, gas relay KG detects also conducting behind the fuel gas, and it is electric that the coil of relay J 5 is got, the normally opened contact J5-1 closure of relay J 5, the normally opened contact of gas relay KG is by short circuit, and relay J 5 is in locking states.Meanwhile, the normally opened contact J5-2 closure of relay J 5, so that the coil of relay J 3 gets is electric, its normally opened contact J3-1 closure, oil drain solenoid valve L gets electric, and oil extraction begins.After 20 seconds, the time-delay normally opened contact J3-2 closure of relay J 3, the coil of relay J 4 gets electric, and its normally opened contact J4-2 closure is annotated nitrogen open valve Y and is opened, and nitrogen extinguishing begins.Meanwhile, the normally-closed contact J4-1 of relay J 4 disconnects, and oil drain solenoid valve L and circuit are isolated.In the above-mentioned fire extinguishing procedure, have only gas relay KG and fire detector QT all during conducting, system just begins fire extinguishing, can effectively prevent the generation of misoperation like this.
K switch is the switch of manually putting out a fire, and during the K switch manual closing, the coil of relay J 3 gets electric, its normally opened contact J3-1 closure, and oil drain solenoid valve L gets electric, and oil extraction begins.After 20 seconds, the time-delay normally opened contact J3-2 closure of relay J 3, the coil of relay J 4 gets electric, and its normally opened contact J4-2 closure is annotated nitrogen open valve Y and is opened, and nitrogen extinguishing begins.Meanwhile, the normally-closed contact J4-2 of relay J 4 disconnects, and oil drain solenoid valve L and circuit are isolated.
Among Fig. 1, fire detector QT has three, is loaded on respectively by three line outlets of transformer, and three fire detector QT parallel connection can make temperature detection more reliable like this.In Fig. 2, fire detector QT only draws one.
Claims (3)
1, a kind of transformer extinguishing device control circuit, form by power circuit and fire extinguishing control circuit, it is characterized in that, described power circuit by dc source and relay (J1), (J2 forms relay, described dc source is two groups, is respectively first dc source (DC1) and second dc source (DC2); The coil of described relay (J1) with connect first dc source (DC1) after the normally-closed contact (J2-1) of relay (J2) is connected, the coil of described relay (J2) with connect second dc source (DC2) after the normally-closed contact (J1-1) of relay (J1) is connected, described two dc sources are connected to the power end of fire extinguishing control circuit respectively through relay normally open contact (J1-2), relay normally open contact (J2-2), the voltage of described two dc sources is 220V.
2, according to the described transformer extinguishing device of claim 1 control circuit, it is characterized in that, described fire extinguishing control circuit is by oil drain solenoid valve (L), annotate nitrogen open valve (Y), fire detector (QT), gas relay (KG), relay (J3, J4, J5) form, described notes nitrogen open valve (Y) is installed on to be annotated on the nitrogen pipe (6), oil drain solenoid valve (L) is installed on the oil exit pipe (5), fire detector (QT) is installed on by the oil tank of transformer line outlet, gas relay (KG) is installed on the oil pipe between fuel tank and the conservator, the control coil of the normally opened contact serial connection relay (J5) of described gas relay (KG), the normally opened contact (J5-1) of relay (J5) is connected in parallel on the normally opened contact of gas relay (KG); Be connected on the power supply after the normally opened contact (J5-2) of the normally opened contact of described fire detector (QT), relay (J5) and the series connection of the control coil of relay (J3); The control coil of time-delay normally opened contact (J3-2) the serial connection control relay (J4) of described relay (J3); The control coil of two chain normally-closed contacts (J4-1) of described relay (J4) and two chain normally opened contacts (J3-1) of relay (J3) serial connection back control oil drain solenoid valve (L), two chain normally opened contacts (J4-2) serial connection of described relay (J4) is annotated the control coil of nitrogen open valve (Y).
3, according to the described transformer extinguishing device of claim 2 control circuit, it is characterized in that, set up switch (K), described switch (K) is connected in parallel on the normally opened contact (J5-2) of fire detector (QT) normally opened contact of serial connection and relay J 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620128565 CN200987848Y (en) | 2006-12-31 | 2006-12-31 | Transformer fire-fighting device control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620128565 CN200987848Y (en) | 2006-12-31 | 2006-12-31 | Transformer fire-fighting device control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200987848Y true CN200987848Y (en) | 2007-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620128565 Expired - Fee Related CN200987848Y (en) | 2006-12-31 | 2006-12-31 | Transformer fire-fighting device control circuit |
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| CN (1) | CN200987848Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386530A (en) * | 2011-11-04 | 2012-03-21 | 公安部天津消防研究所 | Power socket with fire protection function |
| CN102580273A (en) * | 2012-02-29 | 2012-07-18 | 常州邦安电力装备有限公司 | Novel oil immersion power transformer extinguishing device |
| CN103599618A (en) * | 2013-12-05 | 2014-02-26 | 国网上海市电力公司 | Improvement of electric control unit of oil extraction and nitrogen injection device |
| CN109865225A (en) * | 2018-12-27 | 2019-06-11 | 陕西德凯电力机械有限公司 | A kind of oil extraction of oil draining nitrogen filling fire extinguishing device and note nitrogen activation system |
| CN112652460A (en) * | 2019-10-10 | 2021-04-13 | 特变电工沈阳变压器集团有限公司 | Installation method of high-end converter transformer accident oil discharge device |
-
2006
- 2006-12-31 CN CN 200620128565 patent/CN200987848Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386530A (en) * | 2011-11-04 | 2012-03-21 | 公安部天津消防研究所 | Power socket with fire protection function |
| CN102386530B (en) * | 2011-11-04 | 2015-11-04 | 公安部天津消防研究所 | A kind of supply socket with fire-fighting function |
| CN102580273A (en) * | 2012-02-29 | 2012-07-18 | 常州邦安电力装备有限公司 | Novel oil immersion power transformer extinguishing device |
| CN103599618A (en) * | 2013-12-05 | 2014-02-26 | 国网上海市电力公司 | Improvement of electric control unit of oil extraction and nitrogen injection device |
| 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 |
| CN109865225A (en) * | 2018-12-27 | 2019-06-11 | 陕西德凯电力机械有限公司 | A kind of oil extraction of oil draining nitrogen filling fire extinguishing device and note nitrogen activation system |
| CN109865225B (en) * | 2018-12-27 | 2024-04-12 | 陕西德凯电力机械有限公司 | Oil discharging and nitrogen injection starting system of oil discharging and nitrogen injection fire extinguishing device |
| CN112652460A (en) * | 2019-10-10 | 2021-04-13 | 特变电工沈阳变压器集团有限公司 | Installation method of high-end converter transformer accident oil discharge device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAODING TIAN WEI ZHUO CHUANG ELECTRIC EQUIPMENT T Free format text: FORMER OWNER: TIANWEI GROUP CO., LTD., BAODING Effective date: 20081114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081114 Address after: No 2399, West Print-Rite Road, Baoding, Hebei: 071056 Patentee after: Baoding Tianwei Zhuochuang Electric Equipment Technologies Co., Ltd. Address before: Baoding, Hebei Province, high street, chemical fiber North Road, 128 Jin Di garden complex building, zip code: 071051 Patentee before: Baoding Tianwei Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071212 Termination date: 20131231 |