CN113318362B - A remedial device for short-circuit spontaneous combustion of inner line group in power distribution cabinet - Google Patents

Abstract

The invention discloses a short-circuit self-ignition remedying device for an internal wire group in a power distribution cabinet. The technical solution includes a cabinet body, and the cabinet is provided with a sensor for inducing spontaneous combustion to generate smoke or flame, and a fire extinguishing device for extinguishing the fire wire group. and short circuit breakers for breaking short circuits. The invention has the following beneficial effects: the sensor integrates a sensing component capable of sensing smoke or flame, and when the sensor senses that any wire group generates smoke or flame, the short-circuit circuit breaker disconnects the circuit to avoid continued short-circuit or cause leakage, thereby avoiding accidents. Further expansion also facilitates remediation.

Description

A remedial device for short-circuit spontaneous combustion of inner line group in power distribution cabinet

technical field

The invention relates to a power distribution cabinet device, and more particularly, to a short-circuit self-ignition remedy device for a wire group in a power distribution cabinet.

Background technique

The power distribution cabinet is the final electrical equipment of the power distribution system. The power distribution system relies on the power distribution cabinet to distribute the electric energy of a certain circuit of the upper-level power distribution equipment to the nearby load, and the power distribution cabinet plays the role of on-off, control or protection in the power distribution system. The power distribution cabinet is a complete set of power distribution devices assembled by assembling primary equipment and secondary equipment through a certain circuit scheme. Therefore, the wired group in the cabinet is in use, and after the long-term use of the line group, there will be a certain probability of aging due to aging. The circuit is short-circuited, resulting in a spontaneous combustion accident of the line group, which destroys the power distribution cabinet and causes the power distribution user to lose power. If not dealt with in time, it can even cause a fire, resulting in more serious losses.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a short-circuit self-ignition remedying device for a line group in a power distribution cabinet, which can automatically monitor and timely handle the line group spontaneous combustion accident.

In order to achieve the above purpose, the present invention provides the following technical solutions: a short-circuit self-ignition remedy device for a wire group in a power distribution cabinet, comprising a cabinet body, the cabinet is provided with a sensor for inducing spontaneous combustion to generate smoke or flame, and a sensor for inducing self-ignition to generate smoke or flame, which is used to counteract the ignition wire group. Fire-extinguishing device for extinguishing fire and short-circuit breaker for breaking short-circuit circuit, fire-extinguishing device includes sprinkler head, gas pipe, connecting pipe, storage tank with built-in dry powder and high-pressure gas tank with built-in high-pressure carbon dioxide gas, and the connecting pipe is used for communication storage tank and high-pressure gas tank, and is provided with a control valve for controlling the opening and closing of the connecting pipe, the gas pipe is used to connect the sprinkler head and the storage tank, a driving device is also installed on the top surface of the cabinet, and the sprinkler head is installed on the driving device, When the sensor senses smoke or flame generated by any wire group, the short-circuit circuit breaker disconnects the circuit of the wire group, the driving device drives the sprinkler head to move above the wire group, the control valve is opened, the connecting pipe is connected, and the high-pressure gas tank is The carbon dioxide gas drives the dry powder in the storage tank to eject from the sprinkler head to extinguish the flame of the line group.

The present invention is further provided as follows: the driving device includes a guide rail, a gas rod and a solenoid valve, the guide rail is fixedly connected to the top surface of the cabinet, a sliding block is slidably connected to the guide rail, and the sliding block is rotatably connected to the first driving rod, and the first driving rod A second driving rod is rotatably connected to one end of the second driving rod, and one end of the second driving rod is rotatably connected to the inner wall of the cabinet body, the sprinkler head is installed on the bottom surface of the slider, the gas rod is installed on the inner wall of the cabinet body, and a telescopic rod is provided One end of the telescopic rod is connected to the second driving rod, the gas rod is connected with the high-pressure gas tank through a solenoid valve, and the solenoid valve controls the air intake or exhaust of the gas rod to make the telescopic rod expand and contract.

The present invention is further configured as follows: the solenoid valve includes a valve body, a first electromagnet, a first magnetic block, a second electromagnet and a second magnetic block, and the valve body is provided with an air inlet, an A guide hole and a second guide hole, the air inlet is connected with the high-pressure gas tank, the air inlet is connected with the gas rod, the first magnetic block is slidably arranged in the first guide hole, and the first electromagnet is installed in the first magnetic the outer side of the block to push the first magnetic block into the air inlet to seal the air inlet, or drive the first magnetic block to move into the first guide hole to open the air inlet; the second magnetic block is slidingly arranged at In the second guide hole, the second electromagnet is installed on the outside of the second magnetic block to push the second magnetic block into the exhaust port, thereby closing the exhaust port, or to drive the second magnetic block to move into the second guide hole , to open the exhaust port.

The present invention is further provided that: one end of the telescopic rod is rotatably connected with a driving block, the second driving rod is provided with a chute along the length direction, and the driving block is slidably arranged in the chute.

The present invention is further provided as follows: the cabinet body is further provided with a vent and an air outlet, the sensor is arranged at the air outlet, and a negative pressure cooling device is installed, the negative pressure cooling device includes a fan, the fan is connected with a negative pressure pipe, and the negative pressure The tube is connected with the air outlet.

The present invention is further provided that: a photoelectric sensor for sensing the position of the spray head is arranged on the guide rail.

The present invention is further provided as follows: it further includes a processor, and the processor is respectively electrically connected with the sensor, the photoelectric sensor, the control valve, the solenoid valve and the fan.

The present invention is further provided that: the exhaust port is connected with a muffler.

The present invention is further provided as follows: the control valve includes a casing, a third electromagnet and a third magnetic block, the casing is provided with a ventilation hole and a third guide hole, the third magnetic block is slidably arranged in the third guide hole, and the first Three electromagnets are arranged on the bottom surface of the third guide hole to push the third magnetic block into the vent hole to close the vent hole, or drive the third magnetic block to move into the third guide hole to open the vent hole.

The present invention is further provided as follows: the spray head is a long pipe, and a plurality of spray holes are evenly distributed on the pipe body.

In summary, the present invention has the following beneficial effects: the sensor integrates a sensing component capable of sensing smoke or flame, and when the sensor senses that any wire group produces smoke or flame, the short-circuit breaker disconnects the circuit of the wire group to avoid continuous Short circuit or cause electric leakage, so as to avoid further expansion of the accident, and it is also convenient for remedial fire fighting. The driving device drives the sprinkler head to move above the line group, the control valve controls the opening of the connecting pipe, and connects the storage tank and the high-pressure gas tank. The carbon dioxide gas in the tank drives the dry powder in the storage tank to spray from the sprinkler head to accurately extinguish the flame of the line group, thereby improving the extinguishing efficiency and speeding up the extinguishing speed, so as to avoid damage to other parts in the electrical cabinet and reduce the loss of spontaneous combustion accidents. , It is also convenient to repair the electrical cabinet.

Description of drawings

Figure 1 is a schematic diagram of the connection structure of the short-circuit self-ignition remedy device in the power distribution cabinet;

Figure 2 is a schematic diagram of the connection structure of the solenoid valve;

FIG. 3 is a schematic diagram of the connection structure of the control valve.

Detailed ways

The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. Wherein the same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top" "Face", "inner" and "outer" refer to directions toward or away from the geometric center of a particular part, respectively.

Referring to Figures 1-3, a short-circuit self-ignition remediation device for a wire group in a power distribution cabinet includes a cabinet 1. The cabinet 1 is provided with a sensor 11 for inducing spontaneous combustion to generate smoke or flame, and is used to detect the ignition wire group. A fire extinguishing device 2 for extinguishing fire and a short circuit breaker 12 for disconnecting a short circuit, the fire extinguishing device 2 includes a sprinkler head 21, a gas pipe 22, a connecting pipe 23, a storage tank 24 with a built-in dry powder, and a high-pressure gas with built-in high-pressure carbon dioxide gas. The tank 25, the connecting pipe 23 is used to communicate the storage tank 24 and the high-pressure gas tank 25, and is provided with a control valve 3 for controlling the opening and closing of the connecting pipe 23, and the gas pipe 22 is used to connect the sprinkler head 21 and the storage tank 24. Inside the cabinet 1 A driving device 4 is also installed on the top surface of the device, and the sprinkler head 21 is installed on the driving device 4. When the sensor 11 senses that any wire group produces smoke or flame, the short-circuit circuit breaker 12 disconnects the circuit of the wire group, and the driving device 4 Drive the sprinkler head 21 to move above the line group, the control valve 3 is opened, the connecting pipe 23 is communicated, and the carbon dioxide gas in the high-pressure gas tank 25 drives the dry powder in the storage tank 24 to be ejected from the sprinkler head 21 to extinguish the line group. flame.

Through the above solution, the sensor 11 integrates a sensing component capable of sensing smoke or flame. When the sensor 11 senses that any wire group generates smoke or flame, the short-circuit breaker 12 disconnects the circuit of the wire group to avoid continuous short circuit or cause leakage, Thereby avoiding the further expansion of the accident, and also facilitating the remedial fire extinguishing, the driving device 4 drives the sprinkler head 21 to move to the top of the line group, the control valve 3 controls the connecting pipe 23 to open, and the storage tank 24 and the high-pressure gas tank 25 are connected. The carbon dioxide gas in the gas tank 25 drives the dry powder in the storage tank 24 to be sprayed from the spray head 21 to accurately extinguish the flame of the line group, thereby improving the extinguishing efficiency and speeding up the extinguishing speed, so as to avoid damage to other parts in the electrical cabinet and reduce The loss of spontaneous combustion accident also facilitates the repair of electrical cabinets.

As an improved specific embodiment, the driving device 4 includes a guide rail 41 , an air rod 42 and a solenoid valve 5 , the guide rail 41 is fixed on the top surface of the cabinet 1 , and a sliding block 43 is slidably connected to the guide rail 41 . 43 is rotatably connected to the first driving rod 44, one end of the first driving rod 44 is rotatably connected to the second driving rod 45, one end of the second driving rod 45 is rotatably connected to the inner wall of the cabinet 1, and the sprinkler head 21 is installed on the slider 43 On the bottom surface of the cabinet 1, the gas rod 42 is installed on the inner wall of the cabinet 1, and a telescopic rod 421 is provided. , the solenoid valve 5 controls the intake or exhaust of the gas rod 42 to make the telescopic rod 421 expand and contract.

Through the above solution, the high-pressure gas tank 25 supplies gas to the gas rod 42 through the solenoid valve 5, and provides power through the gas source, which is clean and efficient, minimizes the impact of spontaneous combustion on the device, and cooperates with the backup circuit or backup power supply to ensure that the device can run smoothly , and the use cost can be reduced, and the influence of air leakage can be avoided by regularly replacing the high-pressure air tank 25 . The solenoid valve 5 controls the intake or exhaust of the air rod 42 to make the telescopic rod 421 expand and contract, and drives the second driving rod 45 to rotate, thereby driving the first driving rod 44 to drive the slider 43 to move along the length of the guide rail 41, so that the Drive the sprinkler head 21 on the slider 43 to move above the spontaneous combustion line group in the cabinet 1, with fast response speed and high work efficiency. location, accurate positioning. Through the link mechanism, the sliding block 43 can obtain a large moving range, and the moving speed is fast, so that the flame can be extinguished as soon as possible.

As an improved specific embodiment, the solenoid valve 5 includes a valve body 51 , a first electromagnet 52 , a first magnetic block 53 , a second electromagnet 54 and a second magnetic block 55 , and the valve body 51 is provided with an intake air Port 511, exhaust port 512, inflation port 513, first guide hole 514 and second guide hole 515, the air inlet 511 is connected with the high-pressure gas tank 25, the inflation port 513 is connected with the gas rod 42, the first magnetic block 53 is slidably arranged in the first guide hole 514, and the first electromagnet 52 is installed on the outside of the first magnetic block 53 to push the first magnetic block 53 into the air inlet 511, thereby closing the air inlet 511, or driving the The first magnetic block 53 moves into the first guide hole 514 to open the air inlet 511 ; the second magnetic block 55 is slidably arranged in the second guide hole 515 , and the second electromagnet 54 is installed on the second magnetic block 55 . outside, to push the second magnetic block 55 into the exhaust port 512 to seal the exhaust port 512 , or drive the second magnetic block 55 to move into the second guide hole 515 to open the exhaust port 512 .

Through the above solution, the positive and negative orientations of the first electromagnet 52 are controlled by controlling the electric circuit of the first electromagnet 52, so that the first magnetic block 53 is controlled to move back and forth along the length direction of the first guide hole 514 by the magnetic field, so as to Open and close the air inlet 511; control the electric circuit of the second electromagnet 54 to control the positive and negative orientation of the second electromagnet 54, thereby controlling the second magnetic block 55 to go back and forth along the length direction of the second guide hole 515 through the magnetic field Moving to open and close the exhaust port 512, the electromagnetic drive has a fast response speed, a short opening and closing interval, and is easy to control.

As an improved specific embodiment, one end of the telescopic rod 421 is rotatably connected with a driving block 422 , the second driving rod 45 is provided with a chute 451 along the length direction, and the driving block 422 is slidably disposed in the chute 451 .

Through the above solution, the gas rod 42 can be fixedly installed, the telescopic rod 421 can be extended and retracted, the driving block 422 can be driven to move along the length direction of the chute 451, and the second driving rod 45 can be driven to rotate, and the telescopic rod 421 can be used with a smaller telescopic stroke The slider 43 is driven to move a longer distance.

As an improved specific embodiment, the cabinet 1 is also provided with a vent 13 and an air outlet 14, the sensor 11 is arranged at the air outlet 14, and a negative pressure cooling device 7 is installed, and the negative pressure cooling device 7 includes a fan 71. The fan 71 is connected with a negative pressure pipe 72, and the negative pressure pipe 72 is connected with the air outlet 14.

Through the above solution, the air flow is guided by the fan 71, so that a negative pressure is formed in the cabinet 1, and has a good heat dissipation effect, so as to reduce the temperature in the cabinet 1 and reduce the possibility of spontaneous combustion. The sensor 11 is arranged at the air outlet 14, so that the sensor 11 can quickly sense the smoke after the wire group spontaneously ignites, so as to speed up the reaction speed of extinguishing and reduce the harm of the wire group spontaneous combustion.

As an improved specific implementation manner, the guide rail 41 is provided with a photoelectric sensor 411 for sensing the position of the sprinkler head 21 .

Through the above solution, the photoelectric sensor 411 determines the position of the sprinkler head 21 by determining the position of the slider 43 to facilitate adjustment, thereby ensuring that the sprinkler head 21 stays at the corresponding position and improving the accuracy of extinguishing the spontaneous combustion line group.

As an improved specific embodiment, the processor 15 is further included, and the processor 15 is electrically connected to the sensor 11 , the photoelectric sensor 411 , the control valve 3 , the solenoid valve 5 and the fan 71 respectively.

Through the above solution, controlled by the processor 15, unified and coordinated operations are performed to ensure that the device can be used better.

As an improved specific embodiment, the exhaust port 512 is connected with the muffler 6 .

Through the above solution, it is avoided that the exhaust sound is too loud, resulting in the formation of noise.

As an improved specific embodiment, the control valve 3 includes a casing 31 , a third electromagnet 32 and a third magnetic block 33 , the casing 31 is provided with a ventilation hole 311 and a third guide hole 312 , and the third magnetic block 33 The sliding is arranged in the third guide hole 312, and the third electromagnet 32 is arranged on the bottom surface of the third guide hole 312 to push the third magnetic block 33 into the ventilation hole 311, thereby closing the ventilation hole 311, or driving the third The magnetic block 33 moves into the third guide hole 312 to open the vent hole 311 .

Through the above scheme, by controlling the circuit of the third electromagnet 32 to be energized, the positive and negative directions of the third electromagnet 32 are controlled, thereby controlling the movement of the third magnetic block 33 to open and close the ventilation holes 311, the electromagnetic reaction speed is fast, and the Quickly switch the opening and closing, the opening and closing interval is short, and it is easy to control.

As an improved specific embodiment, the spray head 21 is a long pipe, and the pipe body is evenly distributed with a plurality of spray holes 211 .

Through the above solution, the long pipe is convenient to guide the dry powder to be sprayed on the wire group in a concentrated manner to extinguish the flame as soon as possible, and a small amount of dry powder is sprayed around the wire group through the plurality of spray holes 211 to avoid the expansion of the spontaneous combustion range.

The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (9)

1. A short-circuit self-ignition remedy device for wiring groups in a power distribution cabinet, comprising a cabinet (1), characterized in that: the cabinet (1) is provided with a sensor (11) for inducing spontaneous combustion to generate smoke or flame, a For the fire extinguishing device (2) for extinguishing the fire line group and the short circuit breaker (12) for disconnecting the short circuit, the fire extinguishing device (2) comprises a sprinkler head (21), a gas pipe (22), a connecting pipe (23), a storage tank (24) with a built-in dry powder and a high-pressure gas tank (25) with a built-in high-pressure carbon dioxide gas, the connecting pipe (23) is used to communicate the storage tank (24) and the high-pressure gas tank (25), And is provided with a control valve (3) for controlling the opening and closing of the connecting pipe (23), the air pipe (22) is used for connecting the sprinkler head (21) and the storage tank (24), and the ceiling in the cabinet (1) is provided. A drive device (4) is also installed on the surface, and the sprinkler head (21) is installed on the drive device (4). When the sensor (11) senses that any line group produces smoke or flame, the short-circuit breaker (12) is turned off. When the circuit of the line group is opened, the driving device (4) drives the sprinkler head (21) to move above the line group, the control valve (3) is opened, the connecting pipe (23) is connected, and the carbon dioxide in the high-pressure gas tank (25) is opened. The gas drives the dry powder in the storage tank (24) to be ejected from the spray head (21) to extinguish the flame of the wire group; The driving device (4) includes a guide rail (41), an air rod (42) and a solenoid valve (5), the guide rail (41) is fixedly connected to the top surface in the cabinet (1), and the guide rail ( 41) A slider (43) is slidably connected to the upper part, the slider (43) is rotatably connected to a first driving rod (44), and one end of the first driving rod (44) is rotatably connected to a second driving rod (45) One end of the second drive rod (45) is rotatably connected to the inner wall of the cabinet (1), the sprinkler head (21) is installed on the bottom surface of the slider (43), and the air rod (42) is installed A telescopic rod (421) is arranged on the inner wall of the cabinet (1), one end of the telescopic rod (421) is connected to the second driving rod (45), and the gas rod (42) passes through a solenoid valve ( 5) Connected to the high-pressure air tank (25), the solenoid valve (5) controls the air intake or exhaust of the air rod (42) to expand and contract the telescopic rod (421). 2 . The short-circuit self-ignition remedy device for wiring group in a power distribution cabinet according to claim 1 , wherein the solenoid valve ( 5 ) comprises a valve body ( 51 ), a first electromagnet ( 52 ), and a first magnetic block. 3 . (53), a second electromagnet (54) and a second magnetic block (55), the valve body (51) is provided with an air inlet (511), an air outlet (512), an air inlet (513), a first guide hole (514) and a second guide hole (515), the air inlet (511) is connected with the high-pressure air tank (25), the air inlet (513) is connected with the air rod (42), The first magnetic block (53) is slidably arranged in the first guide hole (514), and the first electromagnet (52) is installed on the outer side of the first magnetic block (53) to push the first magnetic block (514). 53) Insert the air inlet (511) to close the air inlet (511), or drive the first magnetic block (53) to move into the first guide hole (514) to open the air inlet (511); The second magnetic block (55) is slidably arranged in the second guide hole (515), and the second electromagnet (54) is installed on the outside of the second magnetic block (55) to push the second magnetic block (55). ) into the exhaust port (512) to close the exhaust port (512), or drive the second magnetic block (55) to move into the second guide hole (515) to open the exhaust port (512). 3. The short-circuit self-ignition remedy device for the inner wiring group of the power distribution cabinet according to claim 2, wherein a drive block (422) is rotatably connected to one end of the telescopic rod (421), and the second drive rod (45) ) is provided with a chute (451) along the length direction, and the driving block (422) is slidably arranged in the chute (451). 4. The remedial device for short-circuit spontaneous combustion of the inner wire group in a power distribution cabinet according to claim 3, wherein the cabinet body (1) is further provided with a vent (13) and an air outlet (14), and the sensor ( 11) is arranged at the air outlet (14), and is equipped with a negative pressure cooling device (7), the negative pressure cooling device (7) includes a fan (71), and the fan (71) is connected with a negative pressure pipe ( 72), the negative pressure pipe (72) is connected with the air outlet (14). 5 . The short-circuit self-ignition remedying device for the inner wire group of a power distribution cabinet according to claim 4 , wherein the guide rail ( 41 ) is provided with a photoelectric sensor ( 411 ) for sensing the position of the sprinkler head ( 21 ). 6 . 6. The short-circuit self-ignition remedying device for the inner wire group of the power distribution cabinet according to claim 5, characterized in that: it further comprises a processor (15), and the processor (15) is respectively connected with the sensor (11), the photoelectric sensor ( 411), the control valve (3), the solenoid valve (5) and the fan (71) are electrically connected. 7 . The short-circuit self-ignition remedying device for wiring group in a power distribution cabinet according to claim 6 , wherein the exhaust port ( 512 ) is connected with a muffler ( 6 ). 8 . 8. The short-circuit self-ignition remedying device for the inner wire group in a power distribution cabinet according to any one of claims 1-7, wherein the control valve (3) comprises a casing (31), a third electromagnet (32) ) and a third magnetic block (33), the casing (31) is provided with a ventilation hole (311) and a third guide hole (312), and the third magnetic block (33) is slidably arranged in the third guide hole In (312), the third electromagnet (32) is arranged on the bottom surface of the third guide hole (312) to push the third magnetic block (33) into the ventilation hole (311), thereby closing the ventilation hole (311). 311), or drive the third magnetic block (33) to move into the third guide hole (312) to open the ventilation hole (311). 9. The remedial device for short-circuit spontaneous combustion in a power distribution cabinet inner wire group according to any one of claims 1-7, wherein the spray head (21) is a long pipe, and the pipe body is evenly distributed with a plurality of spray holes (211).

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