CN114142358A

CN114142358A - Protection type high-low voltage switch cabinet

Info

Publication number: CN114142358A
Application number: CN202111358822.3A
Authority: CN
Inventors: 郑才生; 缪明
Original assignee: Jiangxi Mingzheng Transformation Equipment Co ltd
Current assignee: Jiangxi Mingzheng Transformation Equipment Co ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-03-04
Anticipated expiration: 2041-11-17
Also published as: CN114142358B

Abstract

The invention relates to the field of high-low voltage switch cabinets, in particular to a protective high-low voltage switch cabinet. The air conditioner comprises a cabinet body, an air inlet machine, an air outlet machine, a partition plate, a protection assembly, a temperature sensor, a smoke sensor and a controller; the air inlet machine and the air outlet machine are respectively arranged at the upper end and the lower end of the cabinet body; the partition plate is arranged between the air inlet machine and the air outlet machine and divides the cabinet body into a refrigeration chamber and an operation chamber, and the partition plate is provided with a vent; the temperature sensor and the smoke sensor are arranged in the operation chamber; the protection component is arranged on the cabinet body; the controller is in signal connection with the protection component, the temperature sensor and the smoke sensor. The invention is provided with the protection component, and heat dissipation and cooling are realized through the liquid carbon dioxide. Through the movement of the piston plate II and the piston plate I, liquid carbon dioxide is rapidly sprayed out through the spray head, and primary fire extinguishment is achieved. The piston plate II moves back and forth, the fire extinguishing agent is sprayed out, and the fire of the electric appliance is extinguished in a short distance from multiple directions and multiple angles. The device has good heat dissipation and fire resistance and strong protective performance.

Description

Protection type high-low voltage switch cabinet

Technical Field

The invention relates to the field of high-low voltage switch cabinets, in particular to a protective high-low voltage switch cabinet.

Background

The high-low voltage switch cabinet is used for connecting high-voltage or low-voltage cables, an external line firstly enters a main control switch in the cabinet and then enters a branch control switch, each branch circuit is arranged according to the requirement, a common power supply station and a substation use the high-voltage cabinet, then the high-voltage cabinet is subjected to voltage reduction by a transformer and then enters a low-voltage cabinet, the low-voltage cabinet enters each power distribution box, and the internal structure is that protective devices such as a switch breaker and the like are assembled into an integrated electrical device.

Electric sparks are easily generated on electric elements and lines in the existing high-low voltage switch cabinet due to short circuit, the electric sparks can cause the electric elements and the lines to have fire, and rescue workers cannot reach the electric sparks immediately, so that the problem needs to be improved by a protective high-low voltage switch cabinet.

Disclosure of Invention

To solve the problems in the prior art, a protective high-low voltage switch cabinet is provided. The invention is provided with the protection component, and heat dissipation and cooling are realized through the liquid carbon dioxide. Through the movement of the piston plate II and the piston plate I, liquid carbon dioxide is rapidly sprayed out through the spray head, and primary fire extinguishment is achieved. The piston plate II moves back and forth, the fire extinguishing agent is sprayed out, and the fire of the electric appliance is extinguished in a short distance from multiple directions and multiple angles. The device has good heat dissipation and fire resistance and strong protective performance.

The invention provides a protective high-low voltage switch cabinet which comprises a cabinet body, an air inlet machine, an air outlet machine, a partition plate, a protective assembly, a temperature sensor, a smoke sensor and a controller, wherein the air inlet machine is arranged on the cabinet body; the air inlet machine and the air outlet machine are respectively arranged at the upper end and the lower end of the cabinet body; the partition plate is arranged between the air inlet machine and the air outlet machine and divides the cabinet body into a refrigeration chamber and an operation chamber, and the partition plate is provided with a vent; the temperature sensor and the smoke sensor are arranged in the operation chamber; the protection component is arranged on the cabinet body; the controller is in signal connection with the protection component, the temperature sensor and the smoke sensor.

The protection assembly comprises a refrigeration box, a circulating pipe, a circulating pump, a first material storage box, a spray head, a first piston plate, a first communicating pipe, a buffer box, a second material storage box, a second communicating pipe, a fire extinguishing pipe, a third communicating pipe, a second piston plate and a driving piece; the first material storage box, the buffer box and the second material storage box are all arranged outside the cabinet body; the refrigeration box is arranged in the refrigeration chamber, liquid carbon dioxide is filled in the refrigeration box, and the refrigeration box is communicated with the material storage box through a circulating pipe and matched with a circulating pump to realize circulation of the liquid carbon dioxide; the spray head is arranged at the lower end of the refrigeration box, and the liquid outlet end extends into the operation chamber; the piston plate I moving up and down is arranged in the refrigeration box in a sliding manner; the first communicating pipe is communicated with the upper end of the refrigeration box and the front side of the buffer box; the lower end of the fire extinguishing pipe extends into the operation chamber, and the upper end of the fire extinguishing pipe extends into the refrigeration chamber; the communicating pipe II is communicated with the upper end of the fire extinguishing pipe and the front side of the buffer tank; the communicating pipe III is communicated with the front side of the buffer tank and the material storage tank II; the second material storage box is filled with a dry powder extinguishing agent; the piston plate II is arranged in the buffer box and slides forwards and backwards through the transmission of the driving piece.

Preferably, a filter screen is arranged on the ventilation opening.

Preferably, the cabinet body is provided with a ventilation valve; the air inlet machine and the air outlet machine are respectively communicated with the outside through corresponding ventilation valves.

Preferably, an air guide frame is arranged outside the refrigeration box; the air guide frames are arranged in multiple groups, and air guide channels are formed among the multiple groups of air guide frames; the trend of the air guide channel is consistent with the air outlet direction of the air outlet machine.

Preferably, the circulating pipe, the spray head, the first communicating pipe, the second communicating pipe and the third communicating pipe are all provided with control valves.

Preferably, the fire extinguishing pipe is arranged along the vertical direction, and multidirectional nozzles are arranged on the fire extinguishing pipe at intervals.

Preferably, the driving member comprises a piston rod, a moving seat, a sliding block, a rotating disc and a first motor; one end of the piston rod extends into the buffer box and is connected with the second piston plate, and the other end of the piston rod is connected with the movable seat; the bottom of the movable seat is provided with a chute; the turntable driven by the motor I is rotationally arranged on the rear side of the buffer box; the slide block is arranged at the non-circle center position of the turntable, extends into the sliding groove above and is connected with the groove wall in a sliding manner.

Preferably, a limiting plate is arranged in the refrigeration box; the limiting plate is positioned below the first piston plate; the circulating pipe is communicated with the lower part of the limiting plate; an elastic piece is arranged between the limiting plate and the first piston plate.

Preferably, the cabinet body is provided with a moisture removal piece and a humidity sensor; the dehumidifying piece comprises a mounting plate, a dehumidifying box, a motor II, a driving cover, a gear I, a gear II, a transmission shaft and a stirring sheet; the cabinet body is provided with a through hole; the mounting plate passes through the through hole and is detachably arranged outside the cabinet body; the moisture removal box is clamped on the through hole, a moisture absorption hole is formed in the moisture removal box, and a moisture absorption agent is filled in the moisture removal box; the motor II and the driving cover are arranged on the mounting plate, and the main shaft extends into the driving cover and is connected with the gear I key; the second gear is meshed with the first gear and is connected with one end of the transmission shaft in a key mode; the other end of the transmission shaft extends into the moisture removing box and is rotatably connected with the moisture removing box, and the stirring sheet is arranged outside the moisture removing box.

Preferably, the mounting plate is provided with a feed inlet and a discharge outlet which are communicated with the dehumidifying box; the feed inlet and the discharge outlet are both provided with pistons.

Compared with the prior art, the invention has the following beneficial technical effects:

the invention utilizes the liquid carbon dioxide in the refrigeration box to cool, and the liquid carbon dioxide is matched with air circulation to achieve the purposes of quickening heat dissipation and cooling. When a fire occurs, the liquid carbon dioxide is rapidly sprayed out through the spray head through the movement of the piston plate II and the piston plate I, and the fire is initially extinguished. The piston plate II moves back and forth, the fire extinguishing agent is sprayed out, and the fire of the electric appliance is extinguished in a short distance from multiple directions and multiple angles. The device has good heat dissipation and fire resistance and strong protective performance. Set up the moisture absorbent and dehumidify the internal air of cabinet, the moisture absorbent of piece to the caking disperses, guarantees the moisture absorption effect, has further improved the protecting effect of device.

Drawings

FIG. 1 is a front view of one embodiment of the present invention;

FIG. 2 is a rear view of one embodiment of the present invention;

FIG. 3 is a schematic diagram of the internal structure of an embodiment of the present invention;

FIG. 4 is a schematic view of a refrigeration compartment according to an embodiment of the present invention;

FIG. 5 is a schematic view of the internal structure of the refrigeration cassette in one embodiment of the present invention;

FIG. 6 is a schematic view of a driving member according to an embodiment of the present invention;

FIG. 7 is a schematic view of the internal structure of a buffer tank according to an embodiment of the present invention;

FIG. 8 is a first perspective view of a moisture removal member in accordance with an embodiment of the present invention;

FIG. 9 is a second perspective view of the moisture removal member in accordance with one embodiment of the present invention;

FIG. 10 is a schematic view of the interior of the dehumidifying box according to an embodiment of the present invention.

Reference numerals: 1. a cabinet body; 2. an air inlet machine; 3. an air outlet machine; 4. a partition plate; 5. a vent; 6. a guard assembly; 7. a moisture removal piece; 8. an operation chamber; 9. a refrigeration compartment; 10. a refrigeration case; 11. a circulation pipe; 12. a first material storage box; 13. a wind guide frame; 14. a spray head; 15. a piston plate I; 16. a limiting plate; 17. an elastic member; 18. a first vent valve; 19. a buffer tank; 20. a material storage box II; 21. a second communicating pipe; 22. fire extinguishing pipes; 23. a nozzle; 24. a third communicating pipe; 25. a second piston plate; 26. a piston rod; 27. a movable seat; 28. a chute; 29. a slider; 30. a turntable; 31. a first motor; 32. a moisture removal box; 33. moisture absorption holes; 34. a second motor; 35. a drive housing; 36. a first gear; 37. a second gear; 38. a drive shaft; 39. a stirring sheet; 40. a piston; 41. a first communicating pipe; 42. and (7) mounting the plate.

Detailed Description

Example one

As shown in fig. 1-5 and 7, the protection type high-low voltage switch cabinet provided by the invention comprises a cabinet body 1, an air inlet machine 2, an air outlet machine 3, a partition plate 4, a protection assembly 6, a temperature sensor, a smoke sensor and a controller; the air inlet machine 2 and the air outlet machine 3 are respectively arranged at the upper end and the lower end of the cabinet body 1; the partition plate 4 is arranged between the air inlet machine 2 and the air outlet machine 3, and divides the cabinet body 1 into a refrigeration chamber 9 and an operation chamber 8, and the partition plate 4 is provided with a ventilation opening 5; the temperature sensor and the smoke sensor are arranged in the operation chamber 8; the protection component 6 is arranged on the cabinet body 1; the controller is in signal connection with the protection component 6, the temperature sensor and the smoke sensor.

The protection assembly 6 comprises a refrigeration box 10, a circulating pipe 11, a circulating pump, a first storage box 12, a spray head 14, a first piston plate 15, a first communicating pipe 41, a buffer box 19, a second storage box 20, a second communicating pipe 21, a fire extinguishing pipe 22, a third communicating pipe 24, a second piston plate 25 and a driving piece; the first storage box 12, the buffer box 19 and the second storage box 20 are all arranged outside the cabinet body 1; the refrigeration box 10 is arranged in the refrigeration chamber 9, liquid carbon dioxide is filled in the refrigeration box, the refrigeration box is communicated with the material storage box I12 through a circulating pipe 11 and matched with a circulating pump to realize circulation of the liquid carbon dioxide, and a vent valve I18 is arranged on the refrigeration box 10; the spray head 14 is arranged at the lower end of the refrigeration box 10, and the liquid outlet end extends into the operation chamber 8; the piston plate I15 moving up and down is arranged in the refrigeration box 10 in a sliding manner; the first communication pipe 41 is communicated with the upper end of the refrigeration box 10 and the front side of the buffer box 19; the lower end of the fire extinguishing pipe 22 extends into the operation chamber 8, and the upper end extends into the refrigeration chamber 9; the second communicating pipe 21 communicates the upper end of the fire extinguishing pipe 22 with the front side of the buffer tank 19; the communication pipe III 24 is communicated with the front side of the buffer tank 19 and the storage tank II 20; a dry powder extinguishing agent is filled in the material storage box II 20; the second piston plate 25 is arranged inside the buffer box 19 and slides back and forth through the transmission of the driving piece. And a second vent valve is arranged on the buffer tank 19.

The working principle of the embodiment is as follows: the temperature sensor and the smoke sensor monitor the working environment of the cabinet body 1 and utilize the liquid carbon dioxide in the refrigeration box 10 to cool. And when the monitored temperature exceeds a set threshold value, the air inlet machine 2, the air outlet machine 3 and the circulating pump are opened. The liquid carbon dioxide circularly flows, and the refrigeration effect is stable. The cooperation air inlet machine 2, play fan 3 for cold air circulates down, and hot-air flows from the below, reaches the purpose of accelerating heat dissipation, cooling. When the smoke sensor monitors the occurrence of a fire, the second piston plate 25 moves forward to extrude the air in the buffer tank 19 into the refrigeration tank 10 through the first communication pipe 41. The piston plate 15 is pressed down to rapidly spray liquid carbon dioxide through the nozzle 14. The liquid state is vaporized to absorb heat, and the electric appliance in the operation chamber 8 is rapidly cooled, so that the aim of fire extinguishing is fulfilled. If the fire is large, the second piston plate 25 continues to move back and forth, the fire extinguishing agent in the second storage box 20 is sucked into the buffer box 19 when the second piston plate 25 moves back, the fire extinguishing agent is pressed into the second communicating pipe 21 when the second piston plate 25 moves forward, and finally the fire extinguishing agent is sprayed out through the fire extinguishing pipe 22 to extinguish the fire of the electric appliance at a short distance.

Example two

Furthermore, the vent 5 is provided with a filter screen for filtering air entering the cabinet body 1, so that dust and sundries are prevented from entering the cabinet body to cause damage to the electric appliance. The cabinet body 1 is provided with a ventilation valve; the air inlet machine 2 and the air outlet machine 3 are communicated with the outside through corresponding ventilation valves respectively, so that the ventilation state of the cabinet body 1 is controlled, and moisture and dust are reduced. An air guide frame 13 is arranged outside the refrigeration box 10; the air guide frames 13 are provided with a plurality of groups, and air guide channels are formed among the groups of air guide frames 13; the direction of the air guide channel is consistent with the air outlet direction of the air outlet machine 3. The air outlet machine 3 supplies air, and air exchanges heat with the refrigeration box 10 along the air guide channel and then enters the operation chamber 8 below, so that the refrigeration effect is improved. Control valves are arranged on the circulating pipe 11, the spray head 14, the first communicating pipe 41, the second communicating pipe 21 and the third communicating pipe 24. The sequence of feeding and discharging is conveniently controlled, the fire is extinguished by liquid carbon dioxide firstly, and then the fire is extinguished by the dry powder extinguishing agent. The fire extinguishing pipes 22 are arranged along the vertical direction, and the multi-direction nozzles 23 are arranged on the pipes at intervals, so that fire extinguishment from multiple directions and multiple angles is realized, and the fire extinguishing effect is ensured.

EXAMPLE III

As shown in fig. 6-7, the driving member includes a piston rod 26, a movable base 27, a slide block 29, a turntable 30 and a first motor 31; one end of the piston rod 26 extends into the buffer box 19 and is connected with the second piston plate 25, and the other end of the piston rod is connected with the moving seat 27; the bottom of the moving seat 27 is provided with a sliding chute 28; the rotary disc 30 driven by the first motor 31 is rotatably arranged at the rear side of the buffer box 19; the slide block 29 is arranged at a non-circular position of the rotary table 30, extends into the upper slide groove 28 and is connected with the groove wall in a sliding manner.

The working principle of the embodiment is as follows: the second piston plate 25 is driven by a driving member, specifically, the first motor 31 drives the turntable 30 to rotate, the slider 29 synchronously rotates and slides in the chute 28 to drive the piston rod 26 to move back and forth, so as to achieve the purpose of pushing the second piston plate 25 to move. The pressure intensity in the buffer tank 19 can be conveniently adjusted to control the feeding/discharging amount.

Example four

As shown in fig. 5, a limiting plate 16 is arranged inside the refrigeration box 10; the limiting plate 16 is positioned below the first piston plate 15; the circulating pipe 11 is communicated with the lower part of the limiting plate 16; an elastic element 17 is arranged between the limit plate 16 and the piston plate 15. The piston plate one 15 moves above the limit plate 16 and liquid carbon dioxide is ejected when moving downward. After the fire is relieved, the first vent valve 18 is opened, the first piston plate 15 moves upwards to reset under the assistance of the elastic element 17, new liquid carbon dioxide is added, and the refrigeration box 10 continues to refrigerate.

EXAMPLE five

As shown in fig. 8-10, the cabinet body 1 is provided with a dehumidifying part 7 and a humidity sensor; the dehumidifying part 7 comprises a mounting plate 42, a dehumidifying box 32, a second motor 34, a driving cover 35, a first gear 36, a second gear 37, a transmission shaft 38 and a stirring sheet 39; the cabinet body 1 is provided with a through hole; the mounting plate 42 passes through the through hole and is detachably arranged outside the cabinet body 1; the moisture removal box 32 is clamped on the through hole, a moisture absorption hole 33 is formed in the moisture removal box 32, and a moisture absorption agent is filled in the moisture absorption hole; the second motor 34 and the driving cover 35 are both arranged on the mounting plate 42, and the main shaft extends into the driving cover 35 and is in key connection with the first gear 36; the second gear 37 is meshed with the first gear 36 and is connected with one end of the transmission shaft 38 in a key mode; the other end of the transmission shaft 38 extends into the dehumidifying box 32 and is rotatably connected with the dehumidifying box, and the stirring sheet 39 is arranged outside the transmission shaft.

Further, the mounting plate 42 is provided with a feed inlet and a discharge outlet which are communicated with the dehumidifying box 32; the feed inlet and the discharge outlet are both provided with pistons 40.

The working principle of the embodiment is as follows: the moisture absorbent dehumidifies the air in the cabinet 1. The second motor 34 is started periodically, and is in meshed transmission through the first gear 36 and the second gear 37, the transmission shaft 38 and the stirring sheet 39 rotate synchronously, so that the agglomerated moisture absorbent is dispersed, and the moisture absorption effect is ensured. When humidity sensor monitoring humidity was too big, the staff opened piston 40, the change that removes the tide agent from the outside can, easy operation, convenience have further improved the safeguard effect of the cabinet body 1.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A protective high-low voltage switch cabinet is characterized by comprising a cabinet body (1), an air inlet machine (2), an air outlet machine (3), a partition plate (4), a protective assembly (6), a temperature sensor, a smoke sensor and a controller; the air inlet machine (2) and the air outlet machine (3) are respectively arranged at the upper end and the lower end of the cabinet body (1); the partition plate (4) is arranged between the air inlet machine (2) and the air outlet machine (3) and divides the cabinet body (1) into a refrigeration chamber (9) and an operation chamber (8), and the partition plate (4) is provided with a ventilation opening (5); the temperature sensor and the smoke sensor are arranged in the operation chamber (8); the protection component (6) is arranged on the cabinet body (1); the controller is in signal connection with the protection component (6), the temperature sensor and the smoke sensor;

the protection assembly (6) comprises a refrigeration box (10), a circulating pipe (11), a circulating pump, a first material storage box (12), a spray head (14), a first piston plate (15), a first communicating pipe (41), a buffer box (19), a second material storage box (20), a second communicating pipe (21), a fire extinguishing pipe (22), a third communicating pipe (24), a second piston plate (25) and a driving piece; the first storage box (12), the buffer box (19) and the second storage box (20) are all arranged outside the cabinet body (1); the refrigeration box (10) is arranged in the refrigeration chamber (9), is filled with liquid carbon dioxide and is communicated with the material storage box I (12) through a circulating pipe (11) and matched with a circulating pump to realize circulation of the liquid carbon dioxide; the spray head (14) is arranged at the lower end of the refrigeration box (10), and the liquid outlet end extends into the operation chamber (8); the piston plate I (15) moving up and down is arranged in the refrigeration box (10) in a sliding manner; the first communicating pipe (41) is communicated with the upper end of the refrigeration box (10) and the front side of the buffer box (19); the lower end of the fire extinguishing pipe (22) extends into the operation chamber (8), and the upper end thereof extends into the refrigeration chamber (9); the second communicating pipe (21) is communicated with the upper end of the fire extinguishing pipe (22) and the front side of the buffer tank (19); the communication pipe III (24) is communicated with the front side of the buffer tank (19) and the storage tank II (20); a dry powder extinguishing agent is filled in the storage box II (20); the second piston plate (25) is arranged in the buffer box (19) and slides forwards and backwards through the transmission of the driving piece.

2. A protective high-low voltage switch cabinet according to claim 1, characterized in that a filter screen is arranged on the ventilation opening (5).

3. The protective high-low voltage switch cabinet according to claim 1, wherein the cabinet body (1) is provided with a ventilation valve; the air inlet machine (2) and the air outlet machine (3) are respectively communicated with the outside through corresponding ventilation valves.

4. The protective high-low voltage switch cabinet according to claim 1, wherein an air guide frame (13) is arranged outside the refrigeration box (10); the air guide frames (13) are arranged in multiple groups, and air guide channels are formed among the multiple groups of air guide frames (13); the trend of the air guide channel is consistent with the air outlet direction of the air outlet machine (3).

5. The protective high-low voltage switch cabinet according to claim 1, wherein the circulating pipe (11), the spray head (14), the first communicating pipe (41), the second communicating pipe (21) and the third communicating pipe (24) are all provided with control valves.

6. The high-low voltage switch cabinet according to claim 1, wherein the fire extinguishing tube (22) is vertically disposed and has multi-directional nozzles (23) spaced apart from each other.

7. The protective high-low voltage switch cabinet according to claim 1, wherein the driving member comprises a piston rod (26), a moving seat (27), a sliding block (29), a rotating disc (30) and a first motor (31); one end of the piston rod (26) extends into the buffer box (19) and is connected with the second piston plate (25), and the other end of the piston rod is connected with the moving seat (27); the bottom of the movable seat (27) is provided with a chute (28); the rotary disc (30) driven by the first motor (31) is rotationally arranged at the rear side of the buffer box (19); the slide block (29) is arranged on the non-circle center position of the rotary table (30), extends into the slide groove (28) above and is connected with the groove wall in a sliding way.

8. A protection type high-low voltage switch cabinet according to claim 1, characterized in that a limiting plate (16) is arranged in the refrigeration box (10); the limiting plate (16) is positioned below the first piston plate (15); the circulating pipe (11) is communicated with the lower part of the limiting plate (16); an elastic part (17) is arranged between the limiting plate (16) and the first piston plate (15).

9. The protective high-low voltage switch cabinet according to claim 1, wherein the cabinet body (1) is provided with a moisture removal member (7) and a humidity sensor; the dehumidifying part (7) comprises a mounting plate (42), a dehumidifying box (32), a second motor (34), a driving cover (35), a first gear (36), a second gear (37), a transmission shaft (38) and a stirring sheet (39); the cabinet body (1) is provided with a through hole; the mounting plate (42) passes through the through hole and is detachably arranged outside the cabinet body (1); the moisture removal box (32) is clamped on the through hole, a moisture absorption hole (33) is formed in the moisture removal box (32), and a moisture absorption agent is filled in the moisture absorption hole; the motor II (34) and the driving cover (35) are both arranged on the mounting plate (42), and the main shaft extends into the driving cover (35) and is connected with the gear I (36) in a key mode; the second gear (37) is meshed with the first gear (36) and is connected with one end of the transmission shaft (38) in a key mode; the other end of the transmission shaft (38) extends into the moisture removing box (32) and is connected with the moisture removing box in a rotating way, and meanwhile, the outer part of the transmission shaft is provided with a stirring sheet (39).

10. The protective high-low voltage switch cabinet according to claim 9, wherein the mounting plate (42) is provided with a feed inlet and a discharge outlet which are communicated with the moisture removal box (32); the feed inlet and the discharge outlet are both provided with pistons (40).