CN111313266B

CN111313266B - Switch board that safety protection effect is good

Info

Publication number: CN111313266B
Application number: CN202010280500.0A
Authority: CN
Inventors: 周国平; 王加旺
Original assignee: Power Technology Jiangsu Co Ltd
Current assignee: Power Technology Jiangsu Co Ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2021-06-11
Anticipated expiration: 2040-04-10
Also published as: CN111313266A

Abstract

The invention relates to the technical field of distribution equipment, and discloses a power distribution cabinet with a good safety protection effect, which comprises a cabinet body base, wherein a cabinet body is fixedly installed at the top of the cabinet body base, an electrical element is fixedly installed on the front surface of an inner cavity of the cabinet body, a smoke sensor is fixedly installed at the top of the inner cavity of the cabinet body, a middle installation plate is movably installed on the right side surface of the inner cavity of the cabinet body, an air bag device is fixedly connected to the front surface of the middle installation plate, a covering box matched with the electrical element is fixedly installed on the front surface of the air bag device, and a refrigerating fluid storage cavity is formed in the. This switch board that safety protection effect is good covers box, gasbag device, smoke transducer through setting up for when the internal portion of cabinet is on fire, can be quick cover all electric elements, and then realize electric elements simultaneously and keep apart, prevent that the electric element that catches fire from causing the influence to other electric elements, and then fall to the loss minimum.

Description

Switch board that safety protection effect is good

Technical Field

The invention relates to the technical field of power distribution equipment, in particular to a power distribution cabinet with a good safety protection effect.

Background

The power distribution cabinet is a general name of a motor control center, and is used in occasions with dispersed loads and less loops; motor control centers are used in load concentration and loop-rich applications, where they distribute the power from a circuit of a higher level of distribution equipment to nearby loads, which provide protection, monitoring and control of the loads.

In the using process of the power distribution cabinet, the condition that the elements of the power distribution cabinet are on fire due to short circuit or external reasons can be avoided, some power distribution cabinets adopt alarm equipment to give an alarm to wait for safety personnel to come to extinguish the fire, thus, the fire is not extinguished timely, some automatic fire extinguishing equipment is adopted in the cabinet body to directly spray the electric elements for fire extinguishing, some spray points are too single to cover all components in the cabinet body, or during the spraying process, a large amount of fire extinguishing material is sprayed to the position without fire, which easily causes that some components need to be cleaned later, even the unfired electrical components can be damaged, and the distance between the built-in automatic fire extinguishing device and the electric element is required to be kept more than 40cm, need make the volume increase of switch board like this for the installation of switch board and place convenience inadequately.

Disclosure of Invention

The invention provides a power distribution cabinet with a good safety protection effect, which has the advantages that the power distribution cabinet can singly isolate and extinguish fire for electric elements, can protect the electric elements which are not on fire, reduces the loss to the minimum, does not damage the electricity, can automatically adjust the protection effect according to the fire intensity, and solves the problems in the background art.

The invention provides the following technical scheme: a power distribution cabinet with good safety protection effect comprises a cabinet body base, wherein a cabinet body is fixedly installed at the top of the cabinet body base, an electric element is fixedly installed on the front surface of an inner cavity of the cabinet body, a smoke sensor is fixedly installed at the top of the inner cavity of the cabinet body, a middle installation plate is movably installed on the right side surface of the inner cavity of the cabinet body, an air bag device is fixedly connected to the front surface of the middle installation plate, a cover box matched with the electric element is fixedly installed on the front surface of the air bag device, a refrigerating fluid storage cavity is formed in the cover box, a flexible heat-resistant rubber ring is fixedly connected to the top of the cover box, a communicating pipe is fixedly communicated with the side surface of the air bag device, a communicating valve is fixedly communicated with the other end of the communicating pipe, a vent groove is formed in the side surface of the cabinet, the inboard swing joint of jam piece has the movable support pole, the bottom fixed mounting of cabinet body base inner chamber has the ripple gasbag, the top fixedly connected with connecting rod of ripple gasbag, the top of connecting rod extends to the inside of the cabinet body and the other end swing joint of side and movable support pole, the bottom fixed mounting of cabinet body base inner chamber has gaseous storage tank, the fixed intercommunication of one end of gaseous storage tank has first communicating pipe, the other end of first communicating pipe extends to the inside of the cabinet body and fixed intercommunication has mechanical valve, the fixed intercommunication in side of mechanical valve has second communicating pipe, the other end of second communicating pipe extends to the inside of cabinet body base and communicates with the side of ripple gasbag is fixed.

Preferably, the air bag device comprises an inflatable air bag, the liquid-filled air bag is fixedly bonded above the inflatable air bag, the top of the liquid-filled air bag is fixedly communicated with a middle communicating head, the other end of the middle communicating head is communicated with the refrigerating fluid storage cavity, the bottom of the inflatable air bag is fixedly communicated with an air release valve, the top of the liquid-filled air bag is fixedly communicated with a liquid release valve, and the inner cavity of the covering box is fixedly communicated with an inner inflating head communicated with a communicating pipe.

Preferably, the communicating pipe comprises an air pipe, a refrigerating fluid conveying pipe and an inert gas conveying pipe, the communicating valves correspond to the communicating pipes one by one, and the gas and liquid storage tanks corresponding to the communicating valves are fixedly mounted on the back of the middle mounting plate.

Preferably, the mechanical valve is including acting the room, the top fixed mounting that acts on the room has the room of receiving heat, the positive movable mounting who receives the indoor chamber has the piston board, the bottom fixedly connected with spliced pole of piston board, the bottom of spliced pole runs through the room of receiving heat and extends to the inside and the surface movable sleeve of acting the room and is equipped with the spring, the bottom fixedly connected with of spliced pole communicates the seat, communicate the inside of seat and seted up and communicate matched with through hole with the second, the bottom fixedly connected with of seat that communicates blocks up the seat, the bottom fixed mounting that acts on the indoor chamber has and blocks up a matched with rail seat.

Preferably, the longitudinal sectional area of the plugging block is larger than that of the vent groove.

The invention has the following beneficial effects:

1. this switch board that safety protection effect is good covers box, gasbag device, smoke transducer through setting up for when the internal portion of cabinet is on fire, can be quick cover all electric elements, and then realize electric elements simultaneously and keep apart, prevent that the electric element that catches fire from causing the influence to other electric elements, and then fall to the loss minimum.

2. This switch board that safety protection effect is good sets up the refrigerating fluid through the inside at the cover box and stores the chamber to and liquid filling air bag and inside inflation head, can cover on electric elements covering the box, cool down the electric elements who catches fire, prevent the intensity of a fire increase, through inside inflation head, can continue when the increase in smog, fill in to covering the box and fill in inert gas, and then discharge electric elements oxygen around.

3. This switch board that safety protection effect is good through the cooperation that sets up mechanical valve, gas storage tank, ripple gasbag, connecting rod and jam piece, under the great condition of intensity of a fire, the mechanical valve receives the heat great for the air channel of the side of the cabinet body is stopped up, thereby makes the cabinet body thoroughly isolated with external oxygen, and then realizes putting out a fire.

Drawings

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

FIG. 2 is a side cross-sectional view of a structural airbag assembly and cover box of the present invention;

FIG. 3 is a side sectional view of the cabinet of the present invention;

FIG. 4 is a schematic view of a mechanical valve according to the present invention;

FIG. 5 is a side view of a structural communication socket of the present invention.

In the figure: 1. a cabinet base; 2. a cabinet body; 3. a mechanical valve; 301. an action chamber; 302. a spring; 303. a piston plate; 304. a heat receiving chamber; 305. connecting columns; 306. a rail seat; 307. a through hole; 308. a communication base; 309. a plugging seat; 4. a smoke sensor; 5. a middle mounting plate; 6. an airbag device; 601. an inflatable air bag; 602. a liquid-filled air bag; 603. a middle communicating head; 604. an internal inflation head; 605. a tapping valve; 606. a deflation valve; 7. covering the box; 8. a communicating pipe; 9. a communication valve; 10. a refrigerant fluid storage chamber; 11. a flexible heat-resistant rubber ring; 12. a vent channel; 13. a plugging block; 14. a movable support rod; 15. a connecting rod; 16. a second communicating pipe; 17. a corrugated air bag; 18. a first communication pipe; 19. a gas storage tank; 20. an electrical component.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a power distribution cabinet with good safety protection effect comprises a cabinet base 1, a cabinet body 2 is fixedly installed at the top of the cabinet base 1, an electrical element 20 is fixedly installed on the front of the inner cavity of the cabinet body 2, a smoke sensor 4 is fixedly installed at the top of the inner cavity of the cabinet body 2, a middle installation plate 5 is movably installed on the right side surface of the inner cavity of the cabinet body 2, an air bag device 6 is fixedly connected to the front of the middle installation plate, a covering box 7 matched with the electrical element 20 is fixedly installed on the front of the air bag device 6, a refrigerating fluid storage cavity 10 is arranged inside the covering box 7, a flexible heat-resistant rubber ring 11 is fixedly connected to the top of the covering box 7, the flexible heat-resistant rubber ring 11 is convenient for covering irregular components on the side surface, a communicating pipe 8 is fixedly communicated to the side surface of, when a fire breaks out inside the cabinet body 2, all the electrical elements 20 can be quickly covered, so that the isolation of the electrical elements 20 is realized, the influence of the electrical elements 20 on other electrical elements 20 is prevented, and the loss is reduced to the minimum, the airbag device 6 comprises an inflatable airbag 601, a liquid-filled airbag 602 is fixedly adhered above the inflatable airbag 601, the top of the liquid-filled airbag 602 is fixedly communicated with a middle communicating head 603, the other end of the middle communicating head 603 is communicated with the refrigerant liquid storage cavity 10, the bottom of the inflatable airbag 601 is fixedly communicated with a vent valve 606, the top of the liquid-filled airbag 602 is fixedly communicated with a liquid discharge valve 605, the inner cavity of the covering box 7 is fixedly communicated with an inner inflating head 604 communicated with a communicating pipe 8, the refrigerant liquid storage cavity 10 is arranged inside the covering box 7, and the liquid-filled airbag 602 and the inner inflating head 604 can be covered on the electrical elements by the covering box 7, the temperature of the electric element on fire is reduced to prevent the fire from increasing, when smoke continues to increase, inert gas is filled into the covering box 7 through the internal inflating head 604, oxygen around the electric element 20 is discharged, the other end of the communicating pipe 8 is fixedly communicated with the communicating valve 9, power supply of the communicating valve 9 and the smoke sensor 4 is carried out by an external standby power supply, so that power failure can not occur when the power distribution cabinet catches fire, the communicating pipe 8 comprises an air pipe, a refrigerating fluid conveying pipe and an inert gas conveying pipe, the communicating valve 9 corresponds to the communicating pipe 8 one by one, a gas and liquid storage tank corresponding to the communicating valve 9 is fixedly installed at the back of the middle mounting plate 5, the gas storage tank comprises an air storage tank and an inert gas storage tank, refrigerating fluid is stored in the liquid storage tank, the side surface of the cabinet body 2 is provided with a vent groove 12, a blocking block 13 is movably installed on the side surface of the inner cavity of the cabinet body 2, which is positioned obliquely, the longitudinal sectional area value of the blocking block 13 is slightly larger than the longitudinal sectional area value of the vent groove 12, so that the blocking block 13 completely seals the vent groove 12, the inner side of the blocking block 13 is movably connected with a movable support rod 14, the bottom of the inner cavity of the cabinet body base 1 is fixedly provided with a corrugated air bag 17, the top of the corrugated air bag 17 is fixedly connected with a connecting rod 15, the top of the connecting rod 15 extends to the inside of the cabinet body 2, the side surface of the connecting rod is movably connected with the other end of the movable support rod 14, the bottom of the inner cavity of the cabinet body base 1 is fixedly provided with a gas storage tank 19, one end of the gas storage tank 19 is fixedly communicated with a first communicating pipe 18, the other end of the first communicating pipe 18 extends to the inside of the cabinet body 2 and is fixedly communicated with a mechanical valve 3, the side surface of the mechanical valve 3 is fixedly communicated with a second communicating pipe 16, the mechanical valve 3 comprises an action chamber 301, a heated chamber 304 is fixedly arranged at the top of the action chamber 301, a piston plate 303 is movably arranged on the front surface of the inner cavity of the heated chamber 304, a connecting column 305 is fixedly connected to the bottom of the piston plate 303, the bottom of the connecting column 305 penetrates through the heated chamber 304 and extends to the inside of the action chamber 301, a spring 302 is movably sleeved on the outer surface of the connecting column 305, a communicating seat 308 is fixedly connected to the bottom of the connecting column 305, a through hole 307 matched with a second communicating pipe 16 is formed in the communicating seat 308, a blocking seat 309 is fixedly connected to the bottom of the communicating seat 308, a rail seat 306 matched with the blocking seat 309 is fixedly arranged at the bottom of the inner cavity of the action chamber 301, gas which is easy to expand when being heated is filled in the heated chamber 304, so as to enhance the sensitivity of the mechanical valve, and by arranging the mechanical valve 3, the gas storage tank 19, the corrugated air bag 17, the mechanical valve is heated by a large amount, so that the vent groove 12 on the side surface of the cabinet body 2 is blocked, the cabinet body 2 is completely isolated from external oxygen, and fire extinguishment is realized.

Working principle, when the electric element catches fire, the smoke sensor 4 will sense smoke, at this time, the communication valve 9 will be opened, at this time, a large amount of gas will be filled in the inflatable air bag 601, so that the air bag device 6 bulges, and then the covering box 7 is driven to cover the outer surface of the corresponding electric element 20, and then the electric element 20 not catching fire is protected, at the same time, a large amount of refrigerating liquid will be filled in the liquid-filled air bag 602, and the refrigerating liquid flows into the refrigerating liquid storage cavity 10 in the covering box 7 through the middle communication head 603, so that the surrounding of the electric element 20 catching fire and not catching fire is cooled, at the same time, the inner inflation head 604 will fill a large amount of inert gas into the covering box 7, and then the oxygen around the electric element 20 is exhausted, so that the fire is extinguished, when the temperature inside the cabinet body 2 continues to rise, the mechanical valve 3 will be heated, because the heated chamber 304 is filled with gas which is easily expanded by heating, the piston plate 303 moves downwards due to the heating of the gas, the piston plate 303 drives the connecting column 305 to move against the pulling force of the spring 302, so that the communicating seat 308 and the blocking seat 309 move downwards, and the through hole 307 is communicated with the second communicating pipe 16, at this time, the gas in the gas storage tank 19 sequentially enters the corrugated air bag 17 through the first communicating pipe 18, the mechanical valve 3 and the second communicating pipe 16, so that the corrugated air bag 17 deforms and increases, and further the connecting rod 15 is driven to move upwards, because the connecting rod 15 moves upwards, and further the blocking block 13 is driven to incline through the movable supporting rod 14, at this time, the blocking block 13 blocks the vent groove 12, thereby ensuring that external oxygen cannot enter the inside of the cabinet body 2, and further achieving the purpose of fire extinguishing, after the fire extinguishing is finished, the heated chamber 304 is cooled and the communication seat 308 returns to its original position according to the above steps, and when one vents the gas in the bellows bladder 17, the blocking piece 13 leaves the vent slot 12, and then one can vent the fluid in the inflatable bladder 601 and the liquid filled bladder 602 through the vent valve 606 and the liquid release valve 605, respectively.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an effectual switch board of safety protection, includes cabinet body base (1), its characterized in that: the refrigerator cabinet comprises a cabinet body base (1), a cabinet body (2) is fixedly mounted at the top of the cabinet body base (1), an electric element (20) is fixedly mounted on the front of an inner cavity of the cabinet body (2), a smoke sensor (4) is fixedly mounted on the top of the inner cavity of the cabinet body (2), a middle mounting plate (5) is movably mounted on the right side of the inner cavity of the cabinet body (2), an air bag device (6) is fixedly connected to the front of the middle mounting plate, a covering box (7) matched with the electric element (20) is fixedly mounted on the front of the air bag device (6), a refrigerating fluid storage cavity (10) is formed in the covering box (7), a flexible heat-resistant rubber ring (11) is fixedly connected to the top of the covering box (7), a communicating pipe (8) is fixedly communicated with the side of the air bag device (6), and a communicating valve, the side of the cabinet body (2) is provided with an air duct (12), the side of the inner cavity of the cabinet body (2) is positioned below the air duct (12) and is movably provided with a blocking block (13), the inner side of the blocking block (13) is movably connected with a movable supporting rod (14), the bottom of the inner cavity of the cabinet body base (1) is fixedly provided with a corrugated air bag (17), the top of the corrugated air bag (17) is fixedly connected with a connecting rod (15), the top of the connecting rod (15) extends to the inside of the cabinet body (2) and is movably connected with the other end of the side of the movable supporting rod (14), the bottom of the inner cavity of the cabinet body base (1) is fixedly provided with a gas storage tank (19), one end of the gas storage tank (19) is fixedly communicated with a first communicating pipe (18), the other end of the first communicating pipe (18) extends to the inside of the cabinet body (2, a second communicating pipe (16) is fixedly communicated with the side surface of the mechanical valve (3), and the other end of the second communicating pipe (16) extends into the cabinet body base (1) and is fixedly communicated with the side surface of the corrugated air bag (17);

the air bag device (6) comprises an inflatable air bag (601), a liquid-filled air bag (602) is fixedly bonded above the inflatable air bag (601), the top of the liquid-filled air bag (602) is fixedly communicated with a middle communicating head (603), the other end of the middle communicating head (603) is communicated with a refrigerating fluid storage cavity (10), the bottom of the inflatable air bag (601) is fixedly communicated with an air release valve (606), the top of the liquid-filled air bag (602) is fixedly communicated with a liquid release valve (605), and the inner cavity of the covering box (7) is fixedly communicated with an inner inflating head (604) communicated with a communicating pipe (8);

mechanical valve (3) are including acting on room (301), the top fixed mounting that acts on room (301) receives hot room (304), receive the positive movable mounting in hot room (304) inner chamber has piston board (303), the bottom fixedly connected with spliced pole (305) of piston board (303), the bottom of spliced pole (305) is run through and is received hot room (304) and extend to the inside and the surface movable sleeve of acting on room (301) and be equipped with spring (302), the bottom fixedly connected with intercommunication seat (308) of spliced pole (305), the inside of intercommunication seat (308) is seted up and is communicated pipe (16) matched with through hole (307) with the second, the bottom fixedly connected with of intercommunication seat (308) blocks up seat (309), the bottom fixed mounting that acts on room (301) inner chamber has and blocks up seat (309) matched with rail seat (306).

2. The effectual switch board of safety protection according to claim 1, characterized in that: the communicating pipe (8) comprises an air pipe, a refrigerating fluid conveying pipe and an inert gas conveying pipe, the communicating valves (9) are in one-to-one correspondence with the communicating pipes (8), and gas and liquid storage tanks corresponding to the communicating valves (9) are fixedly mounted on the back of the middle mounting plate (5).

3. The effectual switch board of safety protection according to claim 1, characterized in that: the longitudinal sectional area value of the blocking block (13) is larger than that of the vent groove (12).