CN114272531A - Water fire control system and method for main transformer of transformer substation - Google Patents
Water fire control system and method for main transformer of transformer substation Download PDFInfo
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- 239000007921 spray Substances 0.000 claims abstract description 29
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 16
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 230000008054 signal transmission Effects 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
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- 239000000779 smoke Substances 0.000 description 5
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Abstract
The invention belongs to the technical field of water fire control of transformer substations, and particularly relates to a water fire control system and a method for a main transformer of a transformer substation, wherein the water fire control system comprises a spraying control system and a pressurizing follow current control system; the spraying control system comprises a temperature sensing cable laid on a main transformer, a main transformer body terminal box connected with the temperature sensing cable, a spray head and a deluge valve arranged on a water fire pipeline, and a fire alarm host which performs signal transmission with the main transformer body terminal box and the deluge valve; the pressure boosting follow current control system comprises a pressure gauge, a fire pump, a pressure switch, a fire pool and a pressure stabilizing control cabinet, wherein the pressure gauge, the fire pump, the pressure switch and the fire pool are arranged on a water fire pipeline, and the pressure stabilizing control cabinet is used for carrying out signal transmission with the pressure gauge, the fire pump and the pressure switch. The invention sprays water to extinguish fire at the first time of fire, responds in time, can ensure the continuous and effective fire extinguishing process, and can prepare sufficient water pressure for the next fire extinguishing starting stage after the fire extinguishing is finished.
Description
Technical Field
The invention belongs to the technical field of water fire protection of transformer substations, and particularly relates to a water fire control system and method for a main transformer of a transformer substation.
Background
The main transformer is one of core equipment of a transformer substation, and the safety of the main transformer is the basis for ensuring reliable power supply of a power grid. The main transformer is huge, and the conventional solid fire extinguishing mode and the oil-discharging nitrogen-charging fire extinguishing mode are often poor in effect, so that the water fire extinguishing mode of the main transformer gradually starts to be researched in recent years, and the main transformer is subjected to pilot reconstruction successively. When the existing water fire-fighting mode is applied to a transformer substation, some outstanding problems to be solved urgently exist, for example, due to inherent properties such as water pipe laying, a water spraying link is delayed, the response speed is slow, and fire extinguishment is not timely; the automatic fire extinguishing system has the problems that any element fails to work, fire extinguishing is interrupted, and various operation functions are unavailable. In addition, due to continuous combustion in fire, various sensors on the main transformer of the automatic fire extinguishing system are damaged in different degrees, and the automatic fire extinguishing system is excessively relied on to judge the fire extinguishing effect, so that the expectation is often difficult to achieve.
Chinese patent with publication number CN202169029U discloses a fire extinguishing apparatus, belongs to the protection field of factory fire control, including the fire control cistern, the fire control cistern passes through the feed valve and connects to the water supply pipe way, receives the fire water spraying system of main transformer after with pond play water pressure boost through electric power pressure boost unit, fire water spraying system's inlet channel still links to each other with external water source through water pump adapter spare unit, water pump adapter spare unit includes the check valve that links to each other with fire water spraying system's inlet channel and the water pump adapter that links to each other with external water source. The utility model discloses an increased water pump adapter stand-by unit on current fire extinguishing systems device, when the double-circuit power supply disconnection of main transformer, but present electric power pressure boost unit inefficacy back-up unit of water pump adapter puts out a fire, strives for the time for putting out a fire, has saved the loss. However, the spare unit of the special water pump adapter is externally connected with a fire hydrant or depends on a fire engine, and the spare unit excessively depends on the field human participation, so that the automation degree is low.
Chinese patent with publication number CN203790481U discloses a water spray fire-fighting equipment of large main transformer, this equipment includes the fire pump, the booster pump, the singlechip, the valve, smoke inductor and pipe network, wherein the fire pump, booster pump and valve pass through the data line with the singlechip respectively and are connected, smoke inductor is connected with the input of singlechip, the pipe network includes the shape according to the transformer, upper annular water pipe, middle level annular water pipe and lower floor's annular water pipe that set up on the ware body of transformer, be provided with a plurality of shower nozzles towards the transformer setting on upper annular water pipe, middle level annular water pipe and the lower floor's annular water pipe, set up the perpendicular riser of upper annular water pipe on half pipe of upper annular water pipe and form half loop pipe. The utility model discloses a mode that adopts three-dimensional protection makes the water smoke direct injection that has certain water spray intensity cover the fire source, reaches the purpose of accuse fire, putting out a fire. However, this patent adopts the smoke sensor to carry out the response and puts out a fire, and main transformer has burnt when smoke sensor senses smog, can't discover as early as possible and in time eliminate the condition of a fire.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide a water fire control system and method for a main transformer of a transformer substation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a water fire control system of a main transformer of a transformer substation comprises a spraying control system and a pressurizing follow current control system;
the spraying control system comprises a temperature sensing cable laid on a main transformer, a main transformer body terminal box connected with the temperature sensing cable, a spray head and a deluge valve arranged on a water fire pipeline, and a fire alarm host which performs signal transmission with the main transformer body terminal box and the deluge valve, wherein a temperature conversion module and circuit breaker position contacts on each side of the main transformer are arranged in the main transformer body terminal box;
the pressure boosting follow current control system comprises a pressure gauge, a fire pump, a pressure switch, a fire pool and a pressure stabilizing control cabinet, wherein the pressure gauge, the fire pump, the pressure switch and the fire pool are arranged on a water fire pipeline, and the pressure stabilizing control cabinet is used for carrying out signal transmission with the pressure gauge, the fire pump and the pressure switch.
Preferably, the spray head is disposed above the main transformer.
Preferably, the deluge valve, the fire pump, the pressure switch all can manual control and automatic control.
Preferably, a hydraulic alarm bell is further arranged on the water fire-fighting pipeline.
Preferably, the water fire control system further comprises a background control center arranged in the main control room, and the background control center collects, monitors and controls operation information of the water fire control system equipment.
A water fire control method for a main transformer of a transformer substation utilizes the water fire control system and comprises the following steps:
(1) the temperature sensing cable monitors the temperature of the main transformer and transmits the temperature to the main transformer body terminal box, and the fire alarm host receives a temperature signal converted by the temperature conversion module of the main transformer body terminal box and a main transformer side circuit breaker position contact signal, controls the deluge valve to open and controls the spray head to spray water;
the conditions for opening the deluge valve are as follows: the temperature sensing cable gives an alarm and the circuit breakers at all sides of the main transformer are positioned separately;
(2) the pressure gauge monitors the pressure of the water fire-fighting pipeline in real time, and if the pressure is reduced, the pressure stabilizing control cabinet controls the pressure switch and the fire-fighting water pump to start to pump water and send water, so that continuous fire extinguishing is ensured;
(3) when the fire is extinguished, the deluge valve is closed, the fire pool continuously supplies water for a certain time, a certain water pressure of the water fire pipeline is guaranteed, the water pressure reaches a set value, and the pressure switch and the fire pump are closed.
Preferably, the spray head is disposed above the main transformer.
Preferably, the deluge valve, the fire pump, the pressure switch all can manual control and automatic control.
Preferably, the water fire-fighting pipeline is also provided with a hydraulic alarm bell, and the sprinkler head sprays water to extinguish fire when the deluge valve is opened, and the hydraulic alarm bell acts to give an alarm.
Preferably, the water fire control system further comprises a background control center arranged in the main control room, and the background control center collects, monitors and controls operation information of the water fire control system equipment.
The invention has the following positive beneficial effects:
1. the invention relies on the shower valve of the spray control system to act rapidly, the shower nozzle sprays water to put out a fire in the first time when the fire breaks out, respond in time, the pressurization afterflow control system can not only guarantee the fire extinguishing process to be continuous and effective, but also can prepare sufficient water pressure for the next fire extinguishing initial stage after the fire extinguishing is finished.
2. The deluge valve, the fire pump, the pressure switch of the invention all can be controlled manually and automatically, adjust the switching mode in real time as required. The automatic fire extinguisher is automatically opened at the first time when a fire disaster occurs, so that the fire disaster can be automatically sensed in time, and the automatic fire extinguishing is carried out at the first time; and after the fire extinguishing is finished, manual control and automatic control can be selected, such as: the manually controlled deluge valve ensures the manual confirmation of the fire extinguishing effect and avoids the greater loss caused by the automatic interruption of fire extinguishing; and the requirement of manual operation on the spot under emergency is met, and the fire fighting interruption caused by the failure of the controller is avoided.
3. The water fire control system has a remote control operation function, can meet the centralized control operation requirement of a transformer substation and the personnel safety, and carries out remote control operation.
Drawings
Fig. 1 is a schematic structural diagram of a water fire control system of a main transformer of a transformer substation.
Detailed Description
The invention will be further illustrated with reference to some specific examples.
Example 1
Referring to fig. 1, a water fire control system of a main transformer of a transformer substation comprises a spraying control system and a pressurizing follow current control system;
the spraying control system comprises a temperature sensing cable laid on a main transformer, a main transformer body terminal box connected with the temperature sensing cable, a spray head and a deluge valve arranged on a water fire pipeline, and a fire alarm host which performs signal transmission with the main transformer body terminal box and the deluge valve, wherein a temperature conversion module and circuit breaker position contacts on each side of the main transformer are arranged in the main transformer body terminal box, and the fire alarm host receives temperature signals converted by the temperature conversion module of the main transformer body terminal box and circuit breaker position contact signals on each side of the main transformer;
the pressure boosting follow current control system comprises a pressure gauge, a fire pump, a pressure switch, a fire pool and a pressure stabilizing control cabinet, wherein the pressure gauge, the fire pump, the pressure switch and the fire pool are arranged on a water fire pipeline, and the pressure stabilizing control cabinet is used for carrying out signal transmission with the pressure gauge, the fire pump and the pressure switch.
Furthermore, the nozzles are arranged above the main transformer, the nozzles are connected into a whole, the projection area covers the vertical projection area of the main transformer, and the fire extinguishing range is accurate and effective; the deluge valve is close to main transformer, has reduced the distance that the rivers reachd the shower nozzle in the pipe network, has shortened first response time.
Furthermore, still set up the water conservancy alarm bell on the water fire-fighting pipeline, rely on the water flow sound production, sound can run through the process of putting out a fire all the time, and warning effect is good.
Furthermore, the deluge valve, the fire pump, the pressure switch all can manual control and automatic control, and deluge valve, pressure switch can select the electromagnetic control mode, adjust the switch mode in real time as required. The automatic fire extinguisher is automatically opened at the first time when a fire disaster occurs, so that the fire disaster can be automatically sensed in time, and the automatic fire extinguishing is carried out at the first time; and after the fire extinguishing is finished, automatic control or manual control can be selected, such as: the manually controlled deluge valve ensures the manual confirmation of the fire extinguishing effect and avoids the greater loss caused by the automatic interruption of fire extinguishing; the deluge valve electromagnetic operation mechanism, the pressure switch electromagnetic operation mechanism, the fire pump possess the operation function on the spot simultaneously, and personnel in the station can be under emergency, and manual operation is opened/closed, satisfies artifical processing requirement under emergency on the spot, avoids controller failure to cause the fire control to break.
Furthermore, the water fire-fighting control system also comprises a background control center arranged in the main control room, and the background control center collects, monitors and controls the running information of the water fire-fighting control system equipment.
Example 2
A water fire control method of a main transformer of a transformer substation utilizes the water fire control system of embodiment 1, and comprises the following steps:
(1) the temperature sensing cable monitors the temperature of a main transformer and transmits the temperature to a main transformer body terminal box, and the fire alarm host receives a temperature signal converted by a temperature conversion module of the main transformer body terminal box and a main transformer side circuit breaker position contact signal to control the on/off of the deluge valve, the deluge valve is opened, and the spray head sprays water;
the conditions for opening the deluge valve are as follows: when the temperature of the main transformer exceeds a set value, the temperature sensing cable gives an alarm, the circuit breakers at all sides of the main transformer are positioned, and the circuit breakers at all sides of the main transformer trip;
(2) the pressure gauge monitors the pressure of the water fire-fighting pipeline in real time, and if the pressure is reduced, the pressure stabilizing control cabinet controls the pressure switch and the fire-fighting water pump to start to pump water and send water, so that continuous fire extinguishing is ensured;
(3) when the fire is extinguished, the deluge valve is closed, the fire pool continuously supplies water for a certain time, a certain water pressure of the water fire pipeline is ensured, the water pressure reaches a set value, and the pressure switch and the fire pump are closed.
Furthermore, the nozzles are arranged above the main transformer, the nozzles are connected into a whole, the projection area covers the vertical projection area of the main transformer, and the fire extinguishing range is accurate and effective; the deluge valve is close to main transformer, has reduced the distance that the rivers reachd the shower nozzle in the pipe network, has shortened first response time.
Furthermore, the deluge valve, the fire pump and the pressure switch can be controlled manually and automatically, and the switching mode can be adjusted in real time according to the requirement. The automatic fire extinguisher is automatically opened at the first time when a fire disaster occurs, so that the fire disaster can be automatically sensed in time, and the automatic fire extinguishing is carried out at the first time; and after the fire extinguishing is finished, automatic control or manual control can be selected, such as: the manually controlled deluge valve ensures the manual confirmation of the fire extinguishing effect and avoids the greater loss caused by the automatic interruption of fire extinguishing; and the requirement of manual operation on the spot under emergency is met, and the fire fighting interruption caused by the failure of the controller is avoided.
Furthermore, the water fire-fighting pipeline is also provided with a hydraulic alarm bell, and when the deluge valve is opened, the spray head sprays water to extinguish fire, and the hydraulic alarm bell acts to give an alarm.
Furthermore, the water fire-fighting control system also comprises a background control center arranged in the main control room, and the background control center collects, monitors and controls the running information of the water fire-fighting control system equipment, so that the water fire-fighting control system is convenient for remote operation.
Examples are as follows:
a water fire control method of a main transformer of a transformer substation utilizes the water fire control system of embodiment 1, and comprises the following steps:
(1) a temperature sensing cable is laid on the main transformer, and is connected to a temperature conversion module in a main transformer body terminal box, so that a main transformer temperature analog signal is converted into a digital signal to be provided to a fire alarm host; meanwhile, the fire alarm host receives contact signals of all sides of a main transformer in a terminal box of the main transformer body in real time to judge whether the main transformer is electrified or not; the conditions for opening the deluge valve are as follows: the temperature sensing cable gives an alarm and the circuit breakers at all sides of the main transformer are positioned separately;
(2) after the fire alarm host meets the condition of opening the deluge valve, a valve opening command is sent to the deluge valve electromagnetic operating mechanism in a remote control mode, the deluge valve is opened, the spray head sprays water, and fire extinguishment starts; the spray heads are arranged above the main transformer, the spray heads are connected into a whole, the projection area covers the vertical projection area of the main transformer, and the fire extinguishing range is accurate and effective; the deluge valve is close to the main transformer, has reduced the distance that the waterflow reaches the shower nozzle in the water fire-fighting pipeline, has shortened the first response time;
(3) the water fire-fighting pipeline is communicated with a spray head above the main transformer, a pressure gauge, a fire-fighting water pump, a pressure switch and a fire-fighting water pool, the pressure gauge monitors the pressure of the water fire-fighting pipeline in real time and transmits the pressure value to the pressure stabilizing control cabinet, and the pressure stabilizing control cabinet sends a command of starting/closing the pressure switch and the fire-fighting water pump to the pressure switch and the fire-fighting water pump;
(4) when the deluge valve is opened, the spray head sprays water to extinguish fire, the hydraulic alarm bell acts to send out an alarm sound, at the moment, the pressure of the water fire-fighting pipeline is reduced, the pressure of the pressure gauge is reduced, the pressure stabilizing control cabinet starts the pressure switch and the fire-fighting water pump after receiving the reduction of the pressure gauge, and water pumping and water feeding are carried out to maintain continuous water flow in the water fire-fighting pipeline, so that the continuous fire extinguishing is ensured;
(5) in order to ensure the fire extinguishing effect, the rain valve is manually reset on the fire alarm host or manually closed on site, namely whether fire extinguishing is finished or not needs manual confirmation; after the deluge valve is closed, the fire-fighting pool continues supplying water for a certain time, the water pressure of the water fire-fighting pipeline needs to be continuously boosted for a period of time, so that when a subsequent fire occurs, the pipeline has water pressure, when the water pressure reaches a preset value, the pressure gauge feeds back to the pressure value of the pressure stabilizing control cabinet, the pressure stabilizing control cabinet sends a command of closing a pressure switch and a fire-fighting water pump, so that the pressure switch and the fire-fighting water pump are closed, so that when the next fire occurs, the response can be rapidly carried out, the fire is extinguished by spraying water in the fastest time, the response time of secondary extinguishment is shortened, and the fire extinguishing work is completely finished;
(6) the operation and maintenance personnel can remotely control the operation of the deluge valve, the fire pump and the pressure switch through a background control center of the main control room, so that the operation and maintenance personnel can rapidly handle the fire once finding the fire, isolate the fire from the fire scene and ensure the safety of the operation and maintenance personnel.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A water fire control system of a main transformer of a transformer substation is characterized by comprising a spraying control system and a pressurizing follow current control system;
the spraying control system comprises a temperature sensing cable laid on a main transformer, a main transformer body terminal box connected with the temperature sensing cable, a spray head and a deluge valve arranged on a water fire pipeline, and a fire alarm host which performs signal transmission with the main transformer body terminal box and the deluge valve, wherein a temperature conversion module and circuit breaker position contacts on each side of the main transformer are arranged in the main transformer body terminal box;
the pressure boosting follow current control system comprises a pressure gauge, a fire pump, a pressure switch, a fire pool and a pressure stabilizing control cabinet, wherein the pressure gauge, the fire pump, the pressure switch and the fire pool are arranged on a water fire pipeline, and the pressure stabilizing control cabinet is used for carrying out signal transmission with the pressure gauge, the fire pump and the pressure switch.
2. The substation main transformer water fire control system of claim 1, wherein the sprinkler head is disposed above the main transformer.
3. The substation main transformer water fire control system of claim 1, wherein the deluge valve, the fire pump, and the pressure switch are all manually and automatically controllable.
4. The substation main transformer water fire control system of claim 1, wherein a water alarm bell is further arranged on the water fire pipeline.
5. The substation main transformer water fire control system of any one of claims 1-4, further comprising a background control center disposed in the main control room, wherein the background control center collects, monitors and controls operation information of the water fire control system equipment.
6. A water fire control method of a main transformer of a transformer substation, which utilizes the water fire control system of claim 1, is characterized by comprising the following steps:
(1) the temperature sensing cable monitors the temperature of the main transformer and transmits the temperature to the main transformer body terminal box, and the fire alarm host receives a temperature signal converted by the temperature conversion module of the main transformer body terminal box and a main transformer side circuit breaker position contact signal, controls the deluge valve to open and controls the spray head to spray water;
the conditions for opening the deluge valve are as follows: the temperature sensing cable gives an alarm and the circuit breakers at all sides of the main transformer are positioned separately;
(2) the pressure gauge monitors the pressure of the water fire-fighting pipeline in real time, and if the pressure is reduced, the pressure stabilizing control cabinet controls the pressure switch and the fire-fighting water pump to start to pump water and send water, so that continuous fire extinguishing is ensured;
(3) when the fire is extinguished, the deluge valve is closed, the fire pool continuously supplies water for a certain time, a certain water pressure of the water fire pipeline is guaranteed, the water pressure reaches a set value, and the pressure switch and the fire pump are closed.
7. The substation main transformer water fire control method according to claim 6, wherein the sprinkler is disposed above the main transformer.
8. The fire-fighting control method for water of the transformer substation main transformer according to claim 6, wherein the deluge valve, the fire pump and the pressure switch are all manually controlled and automatically controlled.
9. The transformer substation main transformer water fire control method according to claim 6, wherein a hydraulic alarm bell is further arranged on the water fire pipeline, and when the deluge valve is opened, the spray head sprays water to extinguish a fire, and the hydraulic alarm bell acts to give an alarm sound.
10. The substation main transformer water fire control method according to any one of claims 6 to 9, wherein the water fire control system further comprises a background control center disposed in the main control room, and the background control center collects, monitors and controls operation information of the water fire control system equipment.
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| CN202111554808.0A CN114272531A (en) | 2021-12-17 | 2021-12-17 | Water fire control system and method for main transformer of transformer substation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114668995A (en) * | 2022-04-29 | 2022-06-28 | 西安交通大学 | Transformer substation intelligent robot fire fighting system and method based on high-pressure water mist |
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|---|---|---|---|---|
| GB9322613D0 (en) * | 1993-11-02 | 1993-12-22 | Graviner Ltd Kidde | Fire suppression system |
| CN105879274A (en) * | 2016-05-09 | 2016-08-24 | 内蒙古恒新水电设备有限公司 | Fire extinguishing method and fire extinguishing system of transformer |
| CN108568047A (en) * | 2018-06-26 | 2018-09-25 | 广东电网有限责任公司 | A kind of water spray extinguishing deluge valve pilot system |
| CN110860055A (en) * | 2019-11-28 | 2020-03-06 | 国网天津市电力公司 | Transformer water sprays fire extinguishing systems |
-
2021
- 2021-12-17 CN CN202111554808.0A patent/CN114272531A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9322613D0 (en) * | 1993-11-02 | 1993-12-22 | Graviner Ltd Kidde | Fire suppression system |
| CN105879274A (en) * | 2016-05-09 | 2016-08-24 | 内蒙古恒新水电设备有限公司 | Fire extinguishing method and fire extinguishing system of transformer |
| CN108568047A (en) * | 2018-06-26 | 2018-09-25 | 广东电网有限责任公司 | A kind of water spray extinguishing deluge valve pilot system |
| CN110860055A (en) * | 2019-11-28 | 2020-03-06 | 国网天津市电力公司 | Transformer water sprays fire extinguishing systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114668995A (en) * | 2022-04-29 | 2022-06-28 | 西安交通大学 | Transformer substation intelligent robot fire fighting system and method based on high-pressure water mist |
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