CN112203486A

CN112203486A - Flame-retardant electrical cabinet

Info

Publication number: CN112203486A
Application number: CN202011285418.3A
Authority: CN
Inventors: 任宗愈
Original assignee: Individual
Current assignee: Heilongjiang Yidishui Environmental Protection Technology Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-01-08
Anticipated expiration: 2040-11-17
Also published as: CN112203486B

Abstract

The invention discloses a flame-retardant electrical cabinet which comprises a cabinet body, wherein a machine body is arranged in the cabinet body, a partition plate is horizontally and fixedly connected to the inner wall of the cabinet body below the machine body, a plurality of heat dissipation holes are formed in the partition plate and the side wall of the cabinet body below the partition plate, heat dissipation fins are symmetrically and fixedly connected to the heat dissipation holes in the partition plate, the opposite inner walls of the heat dissipation holes in the partition plate are symmetrically and fixedly connected with the heat dissipation fins, a conical box body is fixedly connected to the inner top of the cabinet body, a bottom plate is rotatably arranged at the bottom of the conical box body through a rotating shaft, flame-retardant dry powder is arranged in the conical box body at the. The invention can automatically seal and isolate oxygen when the body in the electrical cabinet spontaneously ignites, and automatically sprinkle flame-retardant dry powder and generate carbon dioxide for flame retardance, thereby effectively avoiding fire enhancement, extinguishing fire in time and reducing loss, and having better safety performance.

Description

Flame-retardant electrical cabinet

Technical Field

The invention relates to the technical field of electrical cabinets, in particular to a flame-retardant electrical cabinet.

Background

The electrical cabinet is a cabinet which is formed by processing steel and used for protecting electronic components from working normally. The method is mainly used in the fields of chemical industry, environmental protection industry, electric power system, fire safety monitoring, traffic industry and the like. In recent years, accidents of spontaneous combustion caused by serious heating of an internal machine body of the electrical cabinet during long-time working often occur, if the electrical cabinet fails to extinguish fire in time, serious fire disasters are likely to be caused, and not only is serious economic loss easily caused, but also the electrical cabinet is extremely dangerous.

To this end, we propose a flame-retardant electrical cabinet.

Disclosure of Invention

The invention aims to solve the problems in the background art and provides a flame-retardant electrical cabinet.

In order to achieve the purpose, the invention adopts the following technical scheme: a flame-retardant electrical cabinet comprises a cabinet body, wherein a machine body is arranged in the cabinet body, a partition plate is horizontally and fixedly connected to the inner wall of the cabinet body below the machine body, a plurality of heat dissipation holes are formed in the partition plate and the side wall of the cabinet body below the partition plate, heat dissipation fins are symmetrically and fixedly connected to the heat dissipation holes in the partition plate and the opposite inner walls of the heat dissipation holes, a conical box body is fixedly connected to the inner top of the cabinet body, a bottom plate is arranged at the bottom of the conical box body in a rotating mode through a rotating shaft, flame-retardant dry powder is arranged in the conical box body at the upper end of the bottom plate, a chute is arranged at one end, away from the rotating shaft, of the bottom plate, an insertion block is connected in the chute in a sliding mode, a slot matched with the insertion block for use, the one end that the slot was kept away from to the inserted block is still horizontal rigid coupling has a connecting rod, and the connecting rod is located the positive center of spring, a sliding chamber has still been seted up to the bottom plate inside, the inside transverse seal sliding connection of sliding chamber has a piston piece, the one end that the inserted block was kept away from to the connecting rod runs through and extends to sliding chamber and rigid coupling on the piston piece lateral wall, the inside trigger mechanism that the cooperation inserted block used that still is equipped with of bottom plate.

In the flame-retardant electrical cabinet, the triggering mechanism includes a first evaporation liquid arranged between one side of the piston block close to the connecting rod and the inner wall of the sliding cavity, and an air hole communicated with the outside is further formed in one end of the sliding cavity far away from the first evaporation liquid.

In the flame-retardant electrical cabinet, the trigger mechanism comprises a second evaporated liquid arranged between one side of the piston block, which is close to the connecting rod, and the inner wall of the sliding cavity, a reaction cavity is further formed in the bottom plate, a communicating pipe is fixedly connected between one end, which is far away from the first evaporated liquid, of the sliding cavity and the reaction cavity, a hydrochloric acid solution is further arranged between one side, which is far away from the second evaporated liquid, of the piston block and the inner wall of the sliding cavity, the liquid level of the hydrochloric acid solution is lower than the pipe orifice of the communicating pipe, a layer of magnesium carbonate powder is laid in the reaction cavity, and an air overflow hole communicated with the outside is further formed in the side wall of.

In the flame-retardant electrical cabinet, the heat dissipation fins are made of memory metal, when the heat dissipation fins are heated to reach the abnormal temperature, the heat dissipation fins are changed from an arc shape to a horizontal shape, and the heat dissipation holes are completely sealed by the two heat dissipation fins.

In the flame retardant electrical cabinet, the spring is a return spring made of stainless steel.

Compared with the prior art, the flame-retardant electrical cabinet has the advantages that:

1. by utilizing the heat generated when the machine body in the electrical cabinet is spontaneously combusted for transmission, the radiating fins can automatically seal the radiating holes to prevent external oxygen from entering the cabinet body for combustion supporting, and the bottom plate at the bottom of the conical box body can be automatically opened to spill flame-retardant dry powder for fire extinguishing, so that the fire intensity can be effectively prevented from being enhanced, the fire can be timely extinguished, and the loss is reduced;

2. hydrochloric acid solution in the sliding cavity is pressed into the reaction cavity through the moving process of the piston block, the hydrochloric acid solution can react quickly after contacting magnesium carbonate powder in the reaction cavity to generate carbon dioxide gas, the carbon dioxide gas is introduced into the cabinet body, the flame retardant effect is further improved, and the safety performance is better.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a flame-retardant electrical cabinet according to the present invention;

FIG. 2 is an enlarged view of the structure of part A in FIG. 1;

fig. 3 is a schematic structural diagram of a second embodiment of a flame-retardant electrical cabinet according to the present invention;

fig. 4 is an enlarged schematic view of a portion B in fig. 3.

In the figure: 1 cabinet body, 2 organism, 3 baffles, 4 louvres, 5 radiating fins, 6 toper box bodies, 7 bottom plates, 8 fire-retardant dry powder, 9 spouts, 10 inserted blocks, 11 slots, 12 springs, 13 connecting rods, 14 sliding cavities, 15 piston blocks, 16 first evaporated liquid, 17 bleeder vents, 18 second evaporated liquid, 19 reaction cavities, 20 communicating pipes, 21 hydrochloric acid solution, 22 magnesium carbonate powder, 23 air spilling holes.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Example one

Referring to fig. 1-2, a flame-retardant electrical cabinet comprises a cabinet body 1, wherein a cabinet body 2 is installed inside the cabinet body 1, a partition plate 3 is horizontally and fixedly connected to the inner wall of the cabinet body 1 below the cabinet body 2, a plurality of heat dissipation holes 4 are formed in the partition plate 3 and the side wall of the cabinet body 1 below the partition plate 3, heat dissipation fins 5 are symmetrically and fixedly connected to the inner walls of the heat dissipation holes 4 on the partition plate 3, the heat dissipation fins 5 are made of memory metal, a conical box body 6 is fixedly connected to the inner top of the cabinet body 1, a bottom plate 7 is rotatably arranged at the bottom of the conical box body 6 through a rotating shaft, and flame-retardant dry powder 8;

a sliding groove 9 is formed at one end, away from the rotating shaft, of the bottom plate 7, an inserting block 10 is connected in the sliding groove 9 in a sliding mode, an inserting groove 11 matched with the inserting block 10 for use is correspondingly formed in the side wall of the lower end of the conical box body 6, the inserting block 10 is inserted into the inserting groove 11, a spring 12 is fixedly connected between one end, away from the inserting groove 11, of the inserting block 10 and the inner wall of the sliding groove 9, a connecting rod 13 is further horizontally and fixedly connected at one end, away from the inserting groove 11, of the inserting block 10, the connecting rod 13 is located in the center of the spring 12, the spring 12 is a stainless steel return spring, and the; the inside sliding chamber 14 that has still seted up of bottom plate 7, the inside transverse seal sliding connection of sliding chamber 14 has a piston block 15, the one end that the inserted block 9 was kept away from to connecting rod 13 runs through and extends to in the sliding chamber 14 and the rigid coupling is on the lateral wall of piston block 15, the inside trigger mechanism that cooperation inserted block 10 used that still is equipped with of bottom plate 7, trigger mechanism includes that piston block 15 is close to the first evaporated liquor 16 that is equipped with between connecting rod 13 one side and the sliding chamber 14 inner wall, first evaporated liquor 16 adopts trichloromethane, the boiling point is 61.5 ℃, the one end that the first evaporated liquor 16 was kept away from to sliding chamber 14 still sets up a bleeder vent 17 with external intercommunication.

In this embodiment, as shown in fig. 1, the heat dissipation fins 5 are not heated and are in an arc-shaped unfolded state, the heat dissipation holes 4 can be used for normal heat dissipation of the machine body 2, the insertion block 10 is abutted in the slot 11 under the elastic force of the spring 12, and the bottom plate 7 is kept in a closed state; when the machine body 2 in the cabinet body 1 is spontaneously combusted, after the radiating fins 5 are heated to reach the abnormal temperature, the radiating fins 5 are changed into a horizontal shape from an arc shape, and the radiating holes 4 can be completely sealed by the two radiating fins 5 in each radiating hole 4, so that the cabinet body can be integrally sealed, and external oxygen is prevented from entering and supporting the combustion of the cabinet body; the first evaporation liquid 16 inside the bottom plate 7 is evaporated and vaporized after being heated, the piston block 15 is pushed to slide leftwards, the connecting rod 13 can pull the inserting block 10 to be separated from the inserting groove 11, the bottom plate 7 can be automatically opened after the inserting block 10 is separated from the inserting groove 11, the flame-retardant dry powder 8 in the conical box body 6 can be spontaneously combusted and scattered on the spontaneously combusted machine body 2, and the flame-retardant dry powder 8 is large in surface area and high in activity and can be suspended in the air for several minutes to form relatively stable aerosol, so that the fire extinguishing performance is good, and the re-combustion can be effectively prevented.

Example two

Referring to fig. 3-4, while maintaining another structure of the embodiment, the triggering mechanism may further include a second evaporated liquid 18 disposed between one side of the piston block 15 close to the connecting rod 13 and an inner wall of the sliding cavity 14, the second evaporated liquid 18 may also be chloroform, a reaction cavity 19 is further disposed inside the bottom plate 7, a communicating tube 20 is further fixedly connected between one end of the sliding cavity 14 far from the first evaporated liquid 16 and the reaction cavity 19, a hydrochloric acid solution 21 is further disposed between one side of the piston block 15 far from the second evaporated liquid 18 and the inner wall of the sliding cavity 14, a liquid level of the hydrochloric acid solution 21 is lower than a tube opening of the communicating tube 20, a layer of magnesium carbonate powder 22 is disposed inside the reaction cavity 19, and an air overflow hole 23 communicated with the outside is further disposed on a side wall of the reaction cavity 19.

In this embodiment, when the second evaporation liquid 18 is vaporized by heat to push the piston block 15 to slide to the other side, the hydrochloric acid solution 21 is pressed into the reaction chamber 19 through the communicating tube 20 by the piston block 15, the hydrochloric acid solution 21 and the magnesium carbonate powder 22 in the reaction chamber 19 can be contacted and reacted to quickly generate carbon dioxide gas, and the generated carbon dioxide gas is gradually introduced into the cabinet 1 through the air overflow hole 23, so as to further improve the flame retardant effect.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The flame-retardant electrical cabinet comprises a cabinet body (1), wherein a cabinet body (2) is arranged inside the cabinet body (1), and is characterized in that a partition plate (3) is fixedly connected to the inner wall of the cabinet body (1) below the cabinet body (2) in a horizontal manner, a plurality of radiating holes (4) are formed in the partition plate (3) and the side wall of the cabinet body (1) below the partition plate (3), radiating fins (5) are symmetrically and fixedly connected to the corresponding inner walls of the radiating holes (4) on the partition plate (3), a conical box body (6) is fixedly connected to the inner top of the cabinet body (1), a bottom plate (7) is arranged at the bottom of the conical box body (6) in a rotating manner through a rotating shaft, flame-retardant dry powder (8) is arranged in the conical box body (6) at the upper end of the bottom plate (7), and a sliding chute (9, the sliding groove (9) is internally and slidably connected with an inserting block (10), the side wall of the lower end of the conical box body (6) is correspondingly provided with a slot (11) matched with the inserting block (10) for use, the inserting block (10) is inserted in the slot (11), a spring (12) is fixedly connected between one end of the inserting block (10) far away from the slot (11) and the inner wall of the sliding chute (9), one end of the insert block (10) far away from the slot (11) is also horizontally and fixedly connected with a connecting rod (13), the connecting rod (13) is positioned at the center of the spring (12), a sliding cavity (14) is also arranged in the bottom plate (7), a piston block (15) is transversely connected in a sealing and sliding manner in the sliding cavity (14), one end of the connecting rod (12) far away from the inserting block (9) penetrates and extends into the sliding cavity (14) and is fixedly connected on the side wall of the piston block (15), and a trigger mechanism matched with the insertion block (10) for use is further arranged in the bottom plate (7).

2. The flame-retardant electrical cabinet according to claim 1, wherein the triggering mechanism comprises a first evaporation liquid (16) arranged between one side of the piston block (15) close to the connecting rod (13) and an inner wall of the sliding cavity (14), and an air vent (17) communicated with the outside is further formed at one end of the sliding cavity (14) far away from the first evaporation liquid (16).

3. The flame-retardant electrical cabinet according to claim 1, wherein the triggering mechanism comprises a second evaporated liquid (18) provided between one side of the piston block (15) close to the connecting rod (13) and the inner wall of the sliding chamber (14), a reaction cavity (19) is further formed in the bottom plate (7), a communicating pipe (20) is fixedly connected between one end of the sliding cavity (14) far away from the first evaporated liquid (16) and the reaction cavity (19), a hydrochloric acid solution (21) is also arranged between one side of the piston block (15) far away from the second evaporated liquid (18) and the inner wall of the sliding cavity (14), the liquid level of the hydrochloric acid solution (21) is lower than the pipe orifice of the communicating pipe (20), a layer of magnesium carbonate powder (22) is laid in the reaction cavity (19), and the side wall of the reaction cavity (19) is also provided with an air overflow hole (23) communicated with the outside.

4. The flame-retardant electrical cabinet according to claim 1, wherein the heat dissipation fins (5) are made of memory metal, when the heat dissipation fins (5) reach their abnormal temperature, the heat dissipation fins (5) change from arc shape to horizontal shape, and the two heat dissipation fins (5) completely seal the heat dissipation holes (4).

5. A flame-retardant electrical cabinet according to claim 1, wherein the spring (12) is a return spring made of stainless steel.