Power distribution control cabinet and control method thereof

Abstract

The invention provides a power distribution control cabinet and a control method thereof.The power distribution control cabinet comprises a cabinet body and a cabinet door installed on the cabinet body, the two sides of the cabinet body comprise side cabinet plates, the upper ends and the lower ends of the side cabinet plates are provided with heat dissipation openings, and the surfaces of the side cabinet plates are each provided with two sealing plate limiting sliding ways in the length direction of the side cabinet plates; an upper sealing plate and a lower sealing plate are arranged between the two sealing plate limiting slideways on the same side of the cabinet body in a sliding mode, a wire spool is arranged between the upper sealing plate and the lower sealing plate, and one end of the wire spool is rotationally connected to the side cabinet plate; according to the invention, the upper sealing plate and the lower sealing plate are respectively arranged at the heat dissipation ports at the two sides in the cabinet body, so that the heat dissipation ports can be sealed by using the sealing plates at the two sides in the case of a fire disaster, the fire disaster is prevented from spreading, the oxygen content in the cabinet body is reduced, the ventilation speed of outside air is reduced, and the fire behavior in the cabinet body can be rapidly controlled.

Description

Technical Field

[0001] The invention belongs to the field of power distribution cabinets, in particular to a power distribution control cabinet and a control method thereof. Background Art

[0002] The power distribution control cabinet is mainly a control distribution cabinet, which contains power switches, controllers, fuses, relays, contactors and other components. It can be used to control designated equipment, provide control outputs with higher power or more channels, and realize more complex control.

[0003] Since the internal components of the control cabinet are mostly control devices and contact components, they contain a large number of heat-generating electrical components. In order to control the power supply and other equipment, the heat accumulates in the cabinet, which is easy to cause a fire. At present, the control cabinet can remotely send out an alarm through the internal sensors and alarm equipment at the first time of a fire. However, in a confined space, if the fire cannot be extinguished in time, it will cause the fire of various internal components to spread, and the flames will spread through the heat dissipation holes to the external environment, causing a serious fire.

[0004] In summary, the present invention provides a power distribution control cabinet and a control method thereof to solve the above problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a power distribution control cabinet and a control method thereof, so as to solve the problem in the prior art that if the fire cannot be extinguished in time, the fire will spread to various internal components, and the flames will spread to the external environment through the heat dissipation holes, causing serious fires.

[0006] A power distribution control cabinet and a control method thereof, comprising a cabinet body and a cabinet door installed on the cabinet body, wherein both sides of the cabinet body comprise side cabinet plates with heat dissipation openings at upper and lower ends, two sealing plate limiting slideways are respectively installed on the surfaces of the side cabinet plates along their length directions, an upper sealing plate and a lower sealing plate are respectively slidably arranged between the two sealing plate limiting slideways on the same side of the cabinet body, a winding disk is arranged between the upper sealing plate and the lower sealing plate, one end of the winding disk is rotatably connected to the side cabinet plate, and the other end is fixedly connected to a ratchet disk, and one side of the ratchet disk is provided with a control rotary A movable regulating water tank, the surfaces of the wiring panel are fixedly connected to the upper sealing plate and the lower sealing plate by tension ropes, a heat-absorbing circular water pipe is installed on the side of the cabinet body away from the cabinet door, a water pump base is installed at the bottom of the cabinet body, a circulating water pump is installed on the water pump base, the circulating water pump is respectively connected to the regulating water tank and the heat-absorbing circular water pipe, two compressed gas tank mounting valve seats are installed on the water pump base, one end of the compressed gas tank mounting valve seat is respectively provided with a valve stem sleeve, and one end of the valve stem sleeve is fixedly connected to the lower sealing plate through a valve pull rope.

[0007] Furthermore, the upper sealing plate and the lower sealing plate have the same structure and are symmetrically arranged with each other. The upper and lower ends of the upper sealing plate include a raised block and a raised strip. The raised strips of the upper sealing plate and the lower sealing plate are arranged back to back. A spring baffle is installed on the top of the side cabinet plate, and the spring baffle is fixedly connected to the raised strip on the surface of the upper sealing plate by a compression spring.

[0008] Furthermore, one end of the tension rope is fixedly connected to the bottom of the protruding block, the other end of the tension rope is fixedly connected to the winding shaft of the winding disk, and the ratchet disk is fixed to one end of the winding shaft.

[0009] Furthermore, the regulating water tank is installed on one side of the side cabinet panel through a water tank bracket, and the regulating water tank is arranged on the side of the ratchet disk away from the winding disk. The regulating water tank includes a water tank body, a rubber hose is installed in the water tank body, a piston is arranged in the rubber hose, and a piston rod is fixedly connected to the piston.

[0010] Furthermore, one end of the piston rod extends into a hose filled with paraffin, and the other end of the piston rod movably penetrates the water tank body and is fixedly connected to a spring block. The surface of the piston rod is also fixedly connected to a limiting push plate, and the limiting push plate and the spring block are fixedly connected by an adjusting spring. The bottom of the limiting push plate is fixedly connected to a limiting ratchet block, and the limiting ratchet block is clamped on the surface of the ratchet disk.

[0011] Furthermore, valve seat baffles are respectively installed at both ends of the water pump base, and the valve seat baffle is connected to the valve stem sleeve by a tension spring. The valve stem sleeve is movably sleeved on the valve mouth of the compressed gas tank mounting valve seat, and a valve stem is installed in the valve stem sleeve. One end of the valve stem extends into the compressed gas tank mounting valve seat, and one end of the valve stem protrudes from the valve stem sleeve and movably passes through the valve seat baffle and is fixedly connected to one end of the valve pull rope.

[0012] Furthermore, a guide pulley is installed on one side of the side cabinet plate, and the valve pull rope moves around the surface of the guide pulley.

[0013] Furthermore, a water inlet pipe and a water outlet pipe are respectively installed at the upper and lower ends of the heat-absorbing circular water pipe, and the two sides of the heat-absorbing circular water pipe are respectively connected to the regulating water tank through the circulating water pipe 2, and the regulating water tank is also connected to the water outlet of the circulating water pump through the circulating water pipe 1, and the bottom of the heat-absorbing circular water pipe is connected to the water inlet of the circulating water pump through a connecting water pipe.

[0014] Furthermore, the middle part of the heat-absorbing circular water pipe is connected through a plurality of heat-dissipating water pipes, a plurality of radiators are installed on the inner wall of the cabinet, and the heat-dissipating water pipes respectively penetrate the heat-dissipating fins of the radiator.

[0015] A control method applied to the power distribution control cabinet, comprising:

[0016] S1: Install the compressed carbon dioxide and nitrogen tanks in the compressed gas tank installation valve seat respectively, and connect one end of the gas tank to the compressed gas tank installation valve seat through threads;

[0017] S2: Use the top water inlet pipe of the heat-absorbing loop water pipe to pour water into it so that the water can fill the heat-absorbing loop water pipe and the regulating water tank;

[0018] S3: During daily use, the circulating water pump starts to realize the water circulation in the heat-absorbing circular water pipe and the regulating water tank. The radiator can absorb the heat generated by the operation of the components in the cabinet, and the water flowing in the heat dissipation water pipe absorbs the heat. The heat absorbed by the radiator is absorbed by the water in the water pipe;

[0019] S4: In the event of a fire in the cabinet, the temperature in the cabinet rises, and the temperature of the water circulating in the water pipe rises. When the water temperature rises, the water in the water tank will melt the solid paraffin in the hose, and the paraffin will expand after melting. The piston will be pushed upward when the paraffin melts and expands, and the piston rod will be pushed upward, thereby pushing the entire limit push plate upward, and the limit ratchet block will be separated from the surface of the ratchet disk. Under the action of the compression springs and the tension springs at both ends, the tension rope is pulled, and the upper and lower sealing plates are separated from each other, respectively, to block the surface of the heat dissipation port;

[0020] S5: After the tension rope is relaxed, the tension spring is also relaxed due to the pulling force of the valve. The tension spring pushes the valve stem sleeve into the valve seat of the compressed gas tank, and the valve stem contacts the valve of the compressed gas tank, which opens the valve of the compressed gas tank. The gas in the compressed gas tank leaks out and instantly fills the entire cabinet, quickly extinguishing the fire in the cabinet.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention provides an upper sealing plate and a lower sealing plate at the heat dissipation openings on both sides of the cabinet, respectively. In case of fire, the heat dissipation openings can be blocked by the sealing plates on both sides to prevent the spread of fire. The oxygen content in the cabinet is reduced, and the speed of air circulation outside is reduced, so that the fire in the cabinet can be quickly controlled.

[0023] 2. The present invention arranges a compressed gas tank installation valve seat at the bottom of the cabinet, utilizes the compressed gas in the compressed gas tank, controls the fire in the cabinet again, automatically triggers the compressed gas tank installation valve seat, fills the cabinet with carbon dioxide, and quickly extinguishes the fire.

[0024] 3. The present invention realizes the automatic triggering mechanism of the internal sealing plate of the cabinet and the compressed gas tank installation valve seat by setting a paraffin regulating piston. By utilizing the radiator, on the one hand, the heat inside the cabinet can be quickly dissipated during daily use. On the other hand, after a fire occurs, the heat inside the cabinet can be quickly absorbed to heat the water in the water pipe, thereby enabling the paraffin triggering mechanism to be quickly triggered and react more sensitively. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a stereogram of the present invention;

[0026] Figure 2 It is a three-dimensional diagram of the interior of the cabinet of the present invention;

[0027] Figure 3 This is a state diagram of the upper sealing plate and the lower sealing plate of the present invention being pulled;

[0028] Figure 4 It is a three-dimensional diagram of the control water tank of the present invention;

[0029] Figure 5 It is a three-dimensional diagram of the water pump base of the present invention;

[0030] Figure 6 It is a three-dimensional diagram of the heat-absorbing circular water pipe of the present invention.

[0031] In the figure:

[0032] 1. Cabinet body; 2. Water pump base; 3. Side cabinet board; 4. Upper sealing plate; 5. Cabinet door; 6. Sealing plate limit slide; 7. Control water tank; 701. Water tank body; 702. Hose; 703. Piston rod; 704. Piston; 705. Limit ratchet block; 706. Limit push plate; 707. Adjustment spring; 8. Ratchet plate; 9. Circulating water pipe one; 10. Pull rope; 11. Tension spring; 12. Lower sealing plate; 13. Guide pulley; 14. Valve pull rope; 15. Circulating water pump; 16. Heat absorbing circular water pipe; 17. Radiator; 18. Winding reel; 19. Circulating water pipe two; 20. Heat dissipation water pipe; 21. Valve seat baffle; 22. Valve stem sleeve; 23. Compressed gas tank installation valve seat; 24. Compression spring; 25. Spring baffle. DETAILED DESCRIPTION

[0033] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] like Figure 1-Figure 6As shown, the present invention provides a power distribution control cabinet and a control method thereof, comprising a cabinet body 1 and a cabinet door 5 installed on the cabinet body 1, the two sides of the cabinet body 1 include side cabinet panels 3 with heat dissipation ports at upper and lower ends, the surfaces of the side cabinet panels 3 are respectively installed with two sealing plate limiting slideways 6 along their length directions, an upper sealing plate 4 and a lower sealing plate 12 are respectively slidably arranged between the two sealing plate limiting slideways 6 on the same side of the cabinet body 1, a winding drum 18 is arranged between the upper sealing plate 4 and the lower sealing plate 12, one end of the winding drum 18 is rotatably connected to the side cabinet panel 3, and the other end is fixedly connected to a ratchet disk 8, and one side of the ratchet disk 8 is provided with a control rotation The regulating water tank 7, the surfaces of the wiring panel 18 are fixedly connected to the upper sealing plate 4 and the lower sealing plate 12 respectively through the tension rope 10, a heat-absorbing circular water pipe 16 is installed on the side of the cabinet 1 away from the cabinet door 5, a water pump base 2 is installed at the bottom of the cabinet 1, a circulating water pump 15 is installed on the water pump base 2, and the circulating water pump 15 is connected to the regulating water tank 7 and the heat-absorbing circular water pipe 16 respectively, and two compressed gas tank mounting valve seats 23 are installed on the water pump base 2, and one end of the compressed gas tank mounting valve seat 23 is respectively provided with a valve stem sleeve 22, and one end of the valve stem sleeve 22 is fixedly connected to the lower sealing plate 12 through the valve pull rope 14.

[0035] As an embodiment of the present invention, the upper sealing plate 4 and the lower sealing plate 12 have the same structure and are symmetrically arranged with each other. The upper and lower ends of the upper sealing plate 4 include a raised block and a raised strip. The raised strips of the upper sealing plate 4 and the lower sealing plate 12 are arranged back to back. A spring baffle 25 is installed on the top of the side cabinet panel 3. The spring baffle 25 and the raised strip on the surface of the upper sealing plate 4 are fixedly connected by a compression spring 24.

[0036] like Figure 2-Figure 4 The upper sealing plate 4 and the lower sealing plate 12 are respectively arranged on the surfaces of the upper and lower heat dissipation ports of the side cabinet plate 3, and can slide up and down on the surfaces of the heat dissipation ports. By utilizing the limitation of the sealing plate limiting slide 6, they slide in the sealing plate limiting slide 6. By adjusting the positions of the upper sealing plate 4 and the lower sealing plate 12, the heat dissipation ports can be blocked or opened. In a natural state, the spring baffle 25 pulls the compression spring 24 to make the upper sealing plate 4 close to the spring baffle 25, thereby blocking the surface of the heat dissipation port. After the tension rope 10 is subjected to the traction force of the winding drum, the upper sealing plate 4 and the lower sealing plate 12 are pulled, and the compression spring 24 is stretched away from the surface of the heat dissipation port.

[0037] As an embodiment of the present invention, one end of the tension rope 10 is fixedly connected to the bottom of the protruding block, the other end of the tension rope 10 is fixedly connected to the winding shaft of the winding disk 18, and the ratchet disk 8 is fixed to one end of the winding shaft.

[0038] like Figure 3 The tension rope 10 can be wound along the axial surface of the winding shaft. When the upper sealing plate 4 and the lower sealing plate 12 are pulled, the tension rope 10 is wound around the surface of the winding shaft, and the ratchet plate 8 controls the rotation direction and fixing condition of the winding shaft.

[0039] As an embodiment of the present invention, the regulating water tank 7 is installed on one side of the side cabinet panel 3 through a water tank bracket. The regulating water tank 7 is arranged on the side of the ratchet disk 8 away from the winding disk 18. The regulating water tank 7 includes a water tank body 701. A hose 702 is installed in the water tank body 701. A piston 704 is arranged in the hose 702. A piston rod 703 is fixedly connected to the piston 704.

[0040] As an embodiment of the present invention, one end of the piston rod 703 extends into the hose 702, and the hose 702 is filled with paraffin. The other end of the piston rod 703 movably penetrates the water tank body 701 and is fixedly connected to a spring block. The surface of the piston rod 703 is also fixedly connected to a limiting push plate 706, and the limiting push plate 706 and the spring block are fixedly connected by an adjusting spring 707. The bottom of the limiting push plate 706 is fixedly connected to a limiting ratchet block 705, and the limiting ratchet block 705 is clamped on the surface of the ratchet disk 8.

[0041] like Figure 4 A plurality of ratchet grooves are provided on the surface of the ratchet disk 8, and the limiting ratchet block 705 contacts the ratchet groove at the top of the ratchet disk 8. The side surface of the limiting ratchet block 705 in contact with the ratchet disk 8 is a vertical surface, and the other side surface is an inclined surface. When the limiting ratchet block 705 contacts with the ratchet disk 8, the rotation direction of the ratchet disk 8 is limited so that the ratchet disk 8 can only rotate clockwise.

[0042] like Figure 4 , paraffin wax is solid in a natural state, and when the temperature is high, it is melted and expands after melting, squeezing the piston 704 during expansion, thereby pushing the piston rod 703 up, and adjusting the spring 707 to squeeze the limit push plate 706 in a natural state, when the elastic force is the largest, even if the limit ratchet block 705 is inserted into the surface of the ratchet disk 8, the limit ratchet block 705 can move up and down the ratchet disk 8, when the ratchet disk 8 rotates clockwise and the tension rope 10 is pulled, the limit ratchet block 705 moves up and down on the surface of the piston rod 703, so that the ratchet disk 8 can only move in one direction, and the other direction is restricted;

[0043] When the piston rod 703 is pushed upward, the entire adjusting spring 707 is also pushed upward, and at the same time, the limiting ratchet block 705 can also move upward.

[0044] As an embodiment of the present invention, valve seat baffles 21 are respectively installed at both ends of the water pump base 2, and the valve seat baffle 21 is connected to the valve stem sleeve 22 by a tension spring 11. The valve stem sleeve 22 is movably sleeved on the valve port of the compressed gas tank mounting valve seat 23. A valve stem is installed in the valve stem sleeve 22, one end of the valve stem extends into the compressed gas tank mounting valve seat 23, one end of the valve stem protrudes from the valve stem sleeve 22, and movably passes through the valve seat baffle 21 and is fixedly connected to one end of the valve pull rope 14.

[0045] like Figure 5 , the regulating spring 11 squeezes the valve stem sleeve 22, so that the valve stem sleeve 22 is always close to the compressed gas tank mounting valve seat 23, and the valve stem can be inserted into the compressed gas tank mounting valve seat 23, thereby performing a deflation operation on the compressed gas tank;

[0046] When the valve pull rope 14 is pulled, the valve stem sleeve 22 is pulled away from the inside of the compressed gas tank installation valve seat 23, and the compressed gas tank cannot be opened. The valve pull rope 14 is fixedly connected to the bottom of the lower sealing plate 12. When the lower sealing plate 12 is pulled by the winding drum, the valve pull rope 14 is also pulled.

[0047] As an implementation mode of the present invention, a guide pulley 13 is installed on one side of the side cabinet plate 3 , and the valve pull rope 14 movably passes around the surface of the guide pulley 13 .

[0048] like Figure 3 The guide pulley 13 is designed to change the pulling direction of the valve pull rope 14 from the vertical direction to the horizontal direction.

[0049] As an embodiment of the present invention, a water inlet pipe and a water outlet pipe are respectively installed at the upper and lower ends of the heat absorbing circular water pipe 16, and the two sides of the heat absorbing circular water pipe 16 are respectively connected to the regulating water tank 7 through the circulating water pipe 2 19, and the regulating water tank 7 is also connected to the outlet of the circulating water pump 15 through the circulating water pipe 19, and the bottom of the heat absorbing circular water pipe 16 is connected to the water inlet of the circulating water pump 15 through a connecting water pipe.

[0050] like Figure 6 The heat absorbing circular water pipe 16 is connected to the circulating water pump 15 so that water can circulate in the heat absorbing circular water pipe 16 and the regulating water tank 7.

[0051] As an embodiment of the present invention, the middle part of the heat-absorbing circular water pipe 16 is connected through multiple heat-dissipating water pipes 20 , multiple radiators 17 are installed on the inner wall of the cabinet 1 , and the heat-dissipating water pipes 20 respectively penetrate the heat-dissipating fins of the radiator 17 .

[0052] like Figure 6 The radiator 17 is installed on the inner wall of the cabinet 1 away from the cabinet door 5. In daily use, the cabinet 1 can be cooled. If a fire occurs in the cabinet 1, the heat in the cabinet 1 can be quickly absorbed. After being absorbed by the water in the heat dissipation water pipe 20, the water in the water tank 7 is quickly heated and regulated to melt the paraffin in the hose 702, triggering the limit ratchet block 705, closing the two heat dissipation ports, discharging carbon dioxide, and quickly extinguishing the fire.

[0053] A control method applied to a power distribution control cabinet, comprising:

[0054] S1: Install the compressed carbon dioxide and nitrogen tanks in the compressed gas tank installation valve seat 23 respectively, and connect one end of the gas tank to the compressed gas tank installation valve seat 23 through threads;

[0055] S2: Use the top water inlet pipe of the heat absorbing loop water pipe 16 to pour water into it so that the water can fill the heat absorbing loop water pipe 16 and the regulating water tank 7;

[0056] S3: During daily use, the circulating water pump 15 is started to realize the water circulation in the heat-absorbing circular water pipe 16 and the regulating water tank 7. The radiator 17 can be used to absorb the heat generated by the components in the cabinet 1 during operation, and the water flowing in the heat dissipation water pipe 20 absorbs the heat. The heat absorbed by the radiator 17 is absorbed by the water in the water pipe;

[0057] S4: In the event of a fire in the cabinet 1, the temperature in the cabinet 1 rises, and the temperature of the water circulating in the water pipe rises. When the water temperature rises, the water in the water tank 7 will melt the solid paraffin in the hose 702, and the paraffin will expand after melting. The piston 704 will be pushed upward when the paraffin melts and expands, and the piston rod 703 will be pushed upward, thereby pushing the entire limit push plate 706 upward, and the limit ratchet block 705 is separated from the surface of the ratchet disk 8. Under the action of the compression springs 24 at both ends and the tension spring 11, the tension rope 10 is pulled, and the upper sealing plate 4 and the lower sealing plate 12 are respectively separated from each other, covering the surface of the heat dissipation port;

[0058] S5: After the pulling rope 10 is relaxed, the tension spring 11 is also relaxed due to the pulling force of the valve stretching 14. The tension spring 11 pushes the valve stem sleeve 22 to insert into the compressed gas tank installation valve seat 23. The valve stem contacts the valve of the compressed gas tank, and the valve of the compressed gas tank is opened by the support. The gas in the compressed gas tank leaks out and instantly fills the entire cabinet 1, so that the fire in the cabinet 1 is quickly extinguished.

[0059] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A power distribution control cabinet and a control method thereof, comprising a cabinet body (1) and a cabinet door (5) mounted on the cabinet body (1), wherein both sides of the cabinet body (1) include side cabinet panels (3) with heat dissipation openings at upper and lower ends, characterized in that: The surface of the side cabinet plate (3) is respectively provided with two sealing plate limiting slideways (6) along its length direction; an upper sealing plate (4) and a lower sealing plate (12) are respectively slidably provided between the two sealing plate limiting slideways (6) on the same side of the cabinet body (1); a wire winding disk (18) is provided between the upper sealing plate (4) and the lower sealing plate (12); one end of the wire winding disk (18) is rotatably connected to the side cabinet plate (3), and the other end is fixedly connected to a ratchet disk (8); a regulating water tank (7) for controlling rotation is provided on one side of the ratchet disk (8); the surface of the wire winding disk (18) is respectively connected to the upper sealing plate (4) and the lower sealing plate (12) by tension. A heat absorbing circular water pipe (16) is installed on a side of the cabinet body (1) away from the cabinet door (5), a water pump base (2) is installed at the bottom of the cabinet body (1), a circulating water pump (15) is installed on the water pump base (2), and the circulating water pump (15) is connected to the regulating water tank (7) and the heat absorbing circular water pipe (16) respectively, and two compressed gas tank mounting valve seats (23) are installed on the water pump base (2), one end of the compressed gas tank mounting valve seats (23) is respectively provided with a valve stem sleeve (22), and one end of the valve stem sleeve (22) is fixedly connected to the lower sealing plate (12) through a valve pull rope (14).

2. The power distribution control cabinet according to claim 1, characterized in that: The upper sealing plate (4) and the lower sealing plate (12) have the same structure and are symmetrically arranged with each other. The upper and lower ends of the upper sealing plate (4) include raised blocks and raised strips. The raised strips of the upper sealing plate (4) and the lower sealing plate (12) are arranged back to back. A spring baffle (25) is installed on the top of the side cabinet plate (3). The spring baffle (25) is fixedly connected to the raised strip on the surface of the upper sealing plate (4) by a compression spring (24).

3. The power distribution control cabinet as claimed in claim 2, characterized in that: One end of the pulling rope (10) is fixedly connected to the bottom of the protruding block, the other end of the pulling rope (10) is fixedly connected to the winding shaft of the winding disk (18), and the ratchet disk (8) is fixed to one end of the winding shaft.

4. The power distribution control cabinet according to claim 1, characterized in that: The regulating water tank (7) is installed on one side of the side cabinet plate (3) through a water tank bracket. The regulating water tank (7) is arranged on a side of the ratchet plate (8) away from the winding plate (18). The regulating water tank (7) comprises a water tank body (701). A rubber hose (702) is installed in the water tank body (701). A piston (704) is arranged in the rubber hose (702). A piston rod (703) is fixedly connected to the piston (704).

5. The power distribution control cabinet as claimed in claim 4, characterized in that: One end of the piston rod (703) extends into the rubber hose (702), and the rubber hose (702) is filled with paraffin. The other end of the piston rod (703) movably penetrates the water tank body (701) and is fixedly connected to a spring block. The surface of the piston rod (703) is also fixedly connected to a limit push plate (706), and the limit push plate (706) and the spring block are fixedly connected via an adjusting spring (707). The bottom of the limit push plate (706) is fixedly connected to a limit ratchet block (705), and the limit ratchet block (705) is clamped on the surface of the ratchet disk (8).

6. The power distribution control cabinet according to claim 1, characterized in that: Valve seat baffles (21) are respectively installed at both ends of the water pump base (2), and the valve seat baffle (21) is connected to the valve stem sleeve (22) through a tension spring (11). The valve stem sleeve (22) is movably sleeved on the valve port of the compressed gas tank mounting valve seat (23). A valve stem is installed in the valve stem sleeve (22), one end of the valve stem extends into the compressed gas tank mounting valve seat (23), and one end of the valve stem protrudes from the valve stem sleeve (22) and movably penetrates the valve seat baffle (21) and is fixedly connected to one end of the valve pull rope (14).

7. The power distribution control cabinet according to claim 6, characterized in that: A guide pulley (13) is installed on one side of the side cabinet plate (3), and the valve pull rope (14) is movable around the surface of the guide pulley (13).

8. The power distribution control cabinet according to claim 1, characterized in that: The upper and lower ends of the heat absorbing circular water pipe (16) are respectively provided with a water inlet pipe and a water outlet pipe. The two sides of the heat absorbing circular water pipe (16) are respectively connected to the regulating water tank (7) through the circulating water pipe 2 (19). The regulating water tank (7) is also connected to the water outlet of the circulating water pump (15) through the circulating water pipe 1 (9). The bottom of the heat absorbing circular water pipe (16) is connected to the water inlet of the circulating water pump (15) through a connecting water pipe.

9. The power distribution control cabinet as claimed in claim 8, characterized in that: The middle part of the heat-absorbing circular water pipe (16) is connected via a plurality of heat-dissipating water pipes (20); a plurality of radiators (17) are installed on the inner wall of the cabinet (1); and the heat-dissipating water pipes (20) respectively penetrate the heat-dissipating fins of the radiators (17).

10. A control method applied to the power distribution control cabinet according to claims 1-8, characterized in that: include: S1: Install the compressed carbon dioxide and nitrogen tanks in the compressed gas tank mounting valve seat (23) respectively, and connect one end of the gas tank to the compressed gas tank mounting valve seat (23) through a thread; S2: using the top water inlet pipe of the heat absorbing circular water pipe (16) to pour water into it, so that the water can fill the heat absorbing circular water pipe (16) and the regulating water tank (7); S3: During daily use, the circulating water pump (15) is started to realize water circulation in the heat-absorbing circular water pipe (16) and the regulating water tank (7), and the radiator (17) can be used to absorb the heat generated by the components in the cabinet (1) during operation, and the water flowing in the heat dissipation water pipe (20) absorbs the heat, and the heat absorbed by the radiator (17) is absorbed by the water in the water pipe; S4: In the event of a fire in the cabinet (1), the temperature in the cabinet (1) rises, and the temperature of the water circulating in the water pipe rises. When the water temperature rises, the water in the water tank (7) is regulated to melt the solid paraffin in the hose (702). The paraffin expands after melting, and the piston (704) is pushed upward when the paraffin melts and expands. The piston rod (703) is pushed upward, thereby pushing the entire limit push plate (706) upward, and the limit ratchet block (705) is separated from the surface of the ratchet disk (8). Under the action of the compression springs (24) at both ends and the tension spring (11), the tension rope (10) is pulled, and the upper sealing plate (4) and the lower sealing plate (12) are respectively moved away from each other to block the surface of the heat dissipation port; S5: After the tension rope (10) is relaxed, the tension spring (11) is also relaxed due to the pulling force of the valve stretching (14). The tension spring (11) pushes the valve stem sleeve (22) to be inserted into the compressed gas tank mounting valve seat (23). The valve stem contacts the valve of the compressed gas tank, and the valve of the compressed gas tank is pushed open. The gas in the compressed gas tank leaks out and instantly fills the entire cabinet (1), thereby quickly extinguishing the fire in the cabinet (1).

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