CN111262139B - Fire extinguishing device for power distribution cabinet - Google Patents
Fire extinguishing device for power distribution cabinet Download PDFInfo
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- CN111262139B CN111262139B CN202010058667.2A CN202010058667A CN111262139B CN 111262139 B CN111262139 B CN 111262139B CN 202010058667 A CN202010058667 A CN 202010058667A CN 111262139 B CN111262139 B CN 111262139B
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- China
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- cabinet body
- box
- fire extinguishing
- side wall
- heat conduction
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/04—Removing or cutting-off the supply of inflammable material
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Casings For Electric Apparatus (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention belongs to the field of fire extinguishing equipment, and particularly relates to a fire extinguishing device for a power distribution cabinet, which comprises a cabinet body, wherein a plurality of uniformly-distributed outer air permeable holes are formed in the side wall of the cabinet body, an isolation plate is connected to the inner side wall of the cabinet body in a sliding manner, a plurality of uniformly-distributed inner air permeable holes are formed in the isolation plate, the outer air permeable holes and the inner air permeable holes are communicated one by one, a heat conduction box is fixedly connected to the inner top surface of the cabinet body, a horizontally-arranged rotating shaft is rotatably connected in the heat conduction box, a driving wheel and two driving gears are fixedly sleeved on the rotating shaft, the two driving gears are respectively arranged on two sides of the driving wheel, two vertically-arranged rotating rods are arranged in the heat conduction box, and crown gears meshed with the driving gears are fixedly connected to the upper ends of the two rotating rods. When a fire disaster occurs in the power distribution cabinet, the extrusion plate in the rotating box can continuously move up and down when the driving wheel rotates, and the fire extinguishing solution in the lower cavity can be sprayed into the cabinet body to extinguish the fire.
Description
Technical Field
The invention belongs to the field of fire extinguishing equipment, and particularly relates to a fire extinguishing device for a power distribution cabinet.
Background
The power distribution cabinet is the final-stage equipment of a power distribution system, is a general name of a motor control center, and is used for distributing electric energy of a certain circuit of the upper-stage power distribution equipment to nearby loads to play a role in regulating and controlling a plurality of circuits.
Inside transmission circuit and the electronic component of being equipped with of switch board, when they are in operating condition, can produce higher heat in the switch board, long-term high temperature can influence the life of electronic component in the switch board, especially in summer, the inside high temperature of switch board causes the conflagration more easily, most traditional fire extinguishing method is the cabinet door of opening the switch board, then directly put out a fire with the fire extinguisher, but in having a large amount of air admission switch boards in the twinkling of an eye that the cabinet door was opened, make the intensity of a fire become more violent easily, danger is higher.
Therefore, the fire extinguishing device for the power distribution cabinet is provided to solve the problems.
Disclosure of Invention
The invention aims to provide a fire extinguishing device for a power distribution cabinet, which is high in safety and aims at solving the problem that most of traditional fire extinguishing methods are high in dangerousness.
In order to achieve the purpose, the invention adopts the following technical scheme: a fire extinguishing device for a power distribution cabinet comprises a cabinet body, wherein a plurality of outer air permeable holes which are uniformly distributed are formed in the side wall of the cabinet body, an isolation plate is connected to the inner side wall of the cabinet body in a sliding mode, a plurality of inner air permeable holes which are uniformly distributed are formed in the isolation plate, the outer air permeable holes and the inner air permeable holes are communicated one by one, a heat conduction box is fixedly connected to the inner top surface of the cabinet body, a rotating shaft which is horizontally arranged is rotatably connected in the heat conduction box, a driving wheel and two driving gears are fixedly sleeved on the rotating shaft and are respectively arranged on two sides of the driving wheel, two rotating rods which are vertically arranged are arranged in the heat conduction box, crown gears which are in meshed connection with the driving gears are fixedly connected to the upper ends of the two rotating rods, driven gears which are rotatably connected to the inner bottom surface of the heat conduction box are fixedly connected to the lower ends of the rotating rods, and driving gears are jointly meshed and connected with the driven gears, the lower side wall of the heat conduction box is provided with a fire extinguishing mechanism, and the cabinet body is internally provided with an isolation mechanism.
The invention has the beneficial effects that: under normal conditions, the outer gas permeability hole on the cabinet body and the interior bleeder vent on the isolated board are the intercommunication, make whole switch board be in a ventilation state, can in time discharge the heat that the cabinet body of switch board produced, avoid long-term high temperature environment to make the inside electronic component's of switch board life reduce. In foretell extinguishing device for switch board, the upper end of drive wheel extends to the external portion of cabinet and sets up, the last top surface of the cabinet body be equipped with drive wheel assorted perforation, the drive wheel includes the ring tube, fixed the inlaying is equipped with a plurality of magnetic drive pieces on the lateral wall of ring tube, adjacent two the magnetism of magnetic drive piece is opposite, a plurality of inside elastic capsules that contain the evaporant of fixedly connected with in the ring tube, per two a plurality of counter weight balls have all been placed between the elastic capsule. When a fire disaster happens in the cabinet body, the evaporating liquid in the elastic bag close to the bottom of the annular tube can be vaporized, the balance weight balls at the periphery of the evaporating liquid are extruded to two sides, the center of gravity of the whole driving wheel is changed to rotate, the rotating box can be driven to rotate without the input of external extra energy, and the extrusion plate can move up and down to spray the fire extinguishing solution into the cabinet body, so that the cabinet body is safer and energy-saving.
In the fire extinguishing apparatus for the power distribution cabinet, a power supply cut-off device is arranged on the cabinet body.
When the power supply cut-off detects that a fire disaster occurs in the cabinet body, the power supply of the whole power distribution cabinet can be cut off at the first time, so that the fire behavior can be effectively prevented from being extended along with the circuit, and the fire disaster range is enlarged.
In foretell extinguishing device for switch board, the mechanism of putting out a fire is including setting up the rotation box at heat conduction box lower extreme, drive gear's pivot extend to heat conduction box lower extreme setting and with rotation box fixed connection, the stripper plate that rotation box inner seal sliding connection has the level to set up, the stripper plate will rotate the inside of box and divide into the epicoele and contain the lower chamber of putting out a fire solution, the fixed magnet piece that is equipped with that inlays on the stripper plate, all be equipped with a plurality of liquid holes of evenly arranging on the lower bottom surface of lower chamber and the lateral wall. The extrusion plate in the rotating box can continuously move up and down when the driving wheel rotates, and the fire extinguishing solution in the lower cavity can be sprayed into the cabinet body to extinguish fire.
In foretell extinguishing device for switch board, isolation mechanism includes fixed connection at the permanent magnet of isolation board upper end, the fixed position that is equipped with the magnetic block that inlays with the permanent magnet corresponding in the cabinet body upper side wall. When the temperature does not reach the magnetism piece curie point, the magnetism piece repels with the permanent magnet homopolar of isolated plate upper end, when the internal conflagration that takes place of cabinet, when the temperature reaches the magnetism piece curie point, the magnetism piece can the demagnetization become ordinary metal block, can be attracted by the permanent magnet to make the permanent magnet drive isolated plate rebound, make the outer ventilative hole on the cabinet body and the interior bleeder vent on the isolated plate crisscross each other, isolated outside air's entering, when the internal oxygen of cabinet exhausts the fire just can extinguish.
In foretell extinguishing device for switch board, be equipped with the slip chamber in the last lateral wall of the cabinet body, the one end and the perforation intercommunication in slip chamber, the other end and the magnetism piece in slip chamber are corresponding, slip chamber sliding connection has the magnetism strip. When the temperature does not reach the magnetism piece curie point, the magnetism piece repels with the magnetism strip homopolar, consequently the one end that the magnetism piece was kept away from to the magnetism strip can extend to the perforation under normal condition and carry on spacingly to the drive wheel, when the internal conflagration that breaks out of cabinet, when the temperature reached the magnetism piece curie point, the magnetism piece can demagnetize and become ordinary metal block, can be attracted by the magnetism strip, the magnetism strip can slide to the direction of magnetism piece in the slip intracavity, remove spacingly to the drive wheel, put out a fire.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment 1 of a fire extinguishing apparatus for a power distribution cabinet provided by the invention; FIG. 2 is a schematic view of an internal structure of a heat conduction box in embodiment 1 of the fire extinguishing apparatus for the power distribution cabinet provided by the invention;
FIG. 3 is a schematic view of an internal structure of a driving wheel in embodiment 1 of the fire extinguishing apparatus for the distribution cabinet provided by the present invention; fig. 4 is a schematic structural diagram of an embodiment 2 of the fire extinguishing apparatus for the power distribution cabinet provided by the invention. In the figure, a cabinet body 1, an outer air vent 2, an isolation plate 3, an inner air vent 4, a heat conduction box 5, a rotating shaft 6, a driving wheel 7, a driving gear 8, a rotating rod 9, a crown gear 10, a driven gear 11, a driving gear 12, a ring tube 13, a magnetic driving block 14, an elastic bag 15, a counterweight ball 16, a power supply cut-off device 17, a rotating box 18, an extrusion plate 19, an upper cavity 20, a lower cavity 21, a magnet block 22, a permanent magnet 23, a magnetic block 24, a sliding cavity 25 and a magnetic strip 26.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Embodiment 1 is as shown in fig. 1-3, a fire extinguishing apparatus for switch board, including the cabinet body 1, is equipped with a plurality of outer ventilative holes 2 of evenly arranging on the lateral wall of the cabinet body 1, and it is worth mentioning, is equipped with power supply cut-off 17 on the cabinet body 1, when power supply cut-off 17 detects that there is the conflagration to take place in the cabinet body 1 inside, can the very first time cut off the power of whole switch board, can effectively avoid the intensity of a fire to be graceful along with the circuit. Sliding connection has isolated board 3 on the inside wall of the cabinet body 1, is equipped with a plurality of interior bleeder vents 4 of evenly arranging on isolated board 3, and a plurality of outer bleeder vents 2 and a plurality of interior bleeder vents 4 communicate one by one, and under normal condition, the outer bleeder vent 2 and the interior bleeder vent 4 of intercommunication enable whole switch board to be in a ventilation status, can carry out effectual heat dissipation.
The interior top surface fixedly connected with heat conduction box 5 of the cabinet body 1, heat conduction box 5 is made by heat conduction material, the axis of rotation 6 that the level set up is connected to the 5 internal rotations of heat conduction box, fixed cover is equipped with drive wheel 7 and two driving gears 8 on axis of rotation 6, two driving gears 8 set up respectively in the both sides of drive wheel 7, it needs to explain that, the upper end of drive wheel 7 extends to the outside setting of the cabinet body 1, the last top surface of the cabinet body 1 be equipped with 7 assorted perforations of drive wheel, drive wheel 7 rotates with the perforation seal to be connected. The driving wheel 7 comprises a ring-shaped pipe 13, a plurality of magnetic driving blocks 14 are fixedly embedded on the outer side wall of the ring-shaped pipe 13, the magnetism of two adjacent magnetic driving blocks 14 is opposite, a plurality of elastic bags 15 filled with evaporating liquid are fixedly connected in the ring-shaped pipe 13, the evaporating liquid can be toluene, the evaporation temperature is 111 ℃, and a plurality of counterweight balls 16 are arranged between every two elastic bags 15.
Be equipped with the dwang 9 of two vertical settings in the heat conduction box 5, the equal fixedly connected with in upper end of two dwang 9 and the crown gear 10 that the driving gear 8 meshing is connected, the driven gear 11 that the bottom surface rotated to be connected in the lower extreme fixedly connected with of dwang 9 and the heat conduction box 5, common meshing is connected with drive gear 12 between two driven gear 11.
Be equipped with the mechanism of putting out a fire on the lower lateral wall of heat conduction box 5, it is concrete, the mechanism of putting out a fire is including setting up the rotation box 18 at the 5 lower extremes of heat conduction box, and drive gear 12's pivot extends to 5 lower extremes of heat conduction box and sets up and with rotation box 18 fixed connection, rotates the stripper plate 19 that box 18 internal seal sliding connection has the level to set up, and stripper plate 19 will rotate the inside of box 18 and divide into epicoele 20 and contain the lower chamber 21 of putting out a fire solution, is equipped with the through-hole on the lateral wall of epicoele 20.
The fire extinguishing solution may be H2CO3When H is present2CO3When the spraying agent is sprayed into the cabinet body 1 and heated, the following reactions can occur: h2CO3=CO2↑+H2O, wherein CO2Can extinguish fire H2The heat generated by the vaporization of the oxygen can be absorbed to reduce the temperature in the cabinet body 1, so that the fire in the cabinet body 1 can be minimizedIs extinguished within the time of (a).
Due to H2CO3Is stored in the rotating box 18, so that the rotating box 18 is made of heat-insulating material to avoid H2CO3Decomposition reaction occurs by heating in lower chamber 21.
The extrusion plate 19 is fixedly embedded with a magnet block 22, the lower bottom surface and the side wall of the lower cavity 21 are respectively provided with a plurality of liquid outlet holes which are uniformly distributed, the liquid outlet holes are one-way liquid outlet holes, and the extrusion plate 19 is provided with one-way air inlet holes. The cabinet body 1 is internally provided with an isolation mechanism, it should be noted that the isolation mechanism comprises a permanent magnet 23 fixedly connected to the upper end of an isolation plate 3, a magnetic block 24 is fixedly embedded in the upper side wall of the cabinet body 1 at a position corresponding to the permanent magnet 23, the magnetic block 24 has magnetism at normal temperature and is repelled with the same pole of the permanent magnet 23, and when the temperature reaches the curie point (110 ℃) of the magnetic block 24, the magnetic block 24 can be demagnetized to become a common metal block and be attracted by the permanent magnet 23.
The invention can be illustrated by the following operating modes: under normal conditions, outer gas vent 2 on the cabinet body 1 and interior bleeder vent 4 on the insulating board 3 are the intercommunication (as shown in fig. 1), make whole switch board be in a ventilation state, can in time discharge the heat that produces in the cabinet body 1 of switch board. When the cabinet body 1 is inside to have the conflagration to take place, power supply cut-off 17 can the very first time cut off the power of whole switch board, the temperature that constantly rises in the cabinet body 1 can reach the curie point of magnetism piece 24 gradually, at this moment, magnetism piece 24 can the demagnetization become ordinary metal block, can be attracted by permanent magnet 23, thereby make permanent magnet 23 drive isolated plate 3 rebound, make outer ventilative hole 2 on the cabinet body 1 and the interior bleeder vent 4 on isolated plate 3 crisscross each other, isolated outside air's entering. When a fire occurs, the evaporating liquid in the elastic bag 15 close to the bottom of the annular pipe 13 vaporizes, the balance weight balls 16 around the evaporating liquid are squeezed to two sides, the center of gravity of the whole driving wheel 7 is changed to rotate, the elastic bag 15 expanded by rotating to the upper end of the cabinet body 1 is gradually cooled and shrunk, the evaporating liquid in the elastic bag 15 rotated to the lower end of the annular pipe 13 again is also heated to vaporize, and therefore the whole driving wheel 7 can continuously rotate. The driving gears 8 at both ends of the rotating shaft 6 are rotated by the rotation of the driving wheels 7,the crown gear 10 engaged with the driving gear 8 drives the driven gears 11 to rotate through the rotating rod 9, and the two driven gears 11 are engaged with the driving gear 12, so that the driving gear 12 is driven to rotate, thereby driving the rotating box 18 fixedly connected with the rotating shaft of the driving gear 12 to rotate. When the magnetic driving block 14 attracted to the magnet 22 on the pressing plate 19 in the rotating box 18 with the same polarity approaches the pressing plate 19 while the driving wheel 7 rotates and because the adjacent two magnetic driving blocks 14 on the outer side wall are opposite in magnetism, the pressing plate 19 moves downward to drive the H in the lower cavity 212CO3Extruded into the cabinet 1 through a plurality of liquid outlet holes, the rotating box 18 can lead H to be2CO3Is sprayed in the cabinet body 1 under the action of centrifugal force. When H is present2CO3When the spraying agent is sprayed into the cabinet body 1 and heated, the following reactions can occur: h2CO3=CO2↑+H2O, wherein CO2Can extinguish fire H2The heat generated by the vaporization of the oxygen is absorbed to lower the temperature in the cabinet 1, so that the fire in the cabinet 1 can be extinguished in the shortest time. Embodiment 2 as shown in fig. 4, the present embodiment is different from embodiment 1 in that: a sliding cavity 25 is arranged in the upper side wall of the cabinet body 1, one end of the sliding cavity 25 is communicated with the through hole, the other end of the sliding cavity 25 corresponds to the magnetic block 24, the sliding cavity 25 is connected with a magnetic strip 26 in a sliding mode, and the magnetic strip 26 and the permanent magnet 23 are the same in magnetism. In this embodiment, when the temperature does not reach magnetic block 24 curie point, magnetic block 24 and magnetic strip 26 homopolar repulsion, consequently magnetic strip 26 keeps away from the one end of magnetic block 24 and can extend to in the perforation and carry on spacingly in normal condition to drive wheel 7, when the conflagration takes place in the cabinet body 1, when the temperature reaches magnetic block 24 curie point, magnetic block 24 can the demagnetization become ordinary metal block, can be attracted by magnetic strip 26, magnetic strip 26 can slide to magnetic block 24's direction in sliding chamber 25, remove the spacing to drive wheel 7, put out a fire. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. The fire extinguishing device for the power distribution cabinet comprises a cabinet body (1) and is characterized in that a plurality of outer air permeable holes (2) which are uniformly distributed are formed in the side wall of the cabinet body (1), an isolation plate (3) is connected to the inner side wall of the cabinet body (1) in a sliding mode, a plurality of inner air permeable holes (4) which are uniformly distributed are formed in the isolation plate (3), the outer air permeable holes (2) and the inner air permeable holes (4) are communicated one by one, a heat conduction box (5) is fixedly connected to the inner top surface of the cabinet body (1), a rotating shaft (6) which is horizontally arranged is rotatably connected in the heat conduction box (5), a driving wheel (7) and two driving gears (8) are fixedly sleeved on the rotating shaft (6), the two driving gears (8) are respectively arranged on two sides of the driving wheel (7), two vertically arranged rotating rods (9) are arranged in the heat conduction box (5), the upper ends of the two rotating rods (9) are fixedly connected with crown gears (10) which are meshed with the driving gear (8), the lower ends of the rotating rods (9) are fixedly connected with driven gears (11) which are rotatably connected with the inner bottom surface of the heat conduction box (5), the two driven gears (11) are jointly meshed with a driving gear (12), a fire extinguishing mechanism is arranged on the lower side wall of the heat conduction box (5), and an isolation mechanism is arranged in the cabinet body (1);
the upper end of the driving wheel (7) extends to the outside of the cabinet body (1) and is arranged, a through hole matched with the driving wheel (7) is formed in the upper top surface of the cabinet body (1), the driving wheel (7) comprises an annular pipe (13), a plurality of magnetic driving blocks (14) are fixedly embedded in the outer side wall of the annular pipe (13), the magnetism of two adjacent magnetic driving blocks (14) is opposite, a plurality of elastic bags (15) filled with evaporating liquid are fixedly connected in the annular pipe (13), and a plurality of counterweight balls (16) are arranged between every two elastic bags (15);
the fire extinguishing mechanism comprises a rotating box (18) arranged at the lower end of a heat conducting box (5), a rotating shaft of a driving gear (12) extends to the lower end of the heat conducting box (5) and is fixedly connected with the rotating box (18), a horizontally arranged extrusion plate (19) is connected in the rotating box (18) in a sealing and sliding mode, the extrusion plate (19) divides the interior of the rotating box (18) into an upper cavity (20) and a lower cavity (21) containing fire extinguishing solution, a magnet block (22) is fixedly embedded in the extrusion plate (19), and a plurality of liquid outlet holes which are uniformly distributed are formed in the lower bottom surface and the side wall of the lower cavity (21);
the isolation mechanism comprises a permanent magnet (23) fixedly connected to the upper end of an isolation plate (3), and a magnetic block (24) is fixedly embedded in the position, corresponding to the permanent magnet (23), in the upper side wall of the cabinet body (1).
2. The fire extinguishing apparatus for distribution cabinets according to claim 1, characterized in that a power supply cut-off (17) is provided on the cabinet body (1).
3. The fire extinguishing device for the power distribution cabinet according to claim 1, wherein a sliding cavity (25) is arranged in the upper side wall of the cabinet body (1), one end of the sliding cavity (25) is communicated with the through hole, the other end of the sliding cavity (25) corresponds to the magnetic block (24), the sliding cavity (25) is connected with a magnetic strip (26) in a sliding manner, the magnetic strip (26) has the same magnetism as the magnetic block (24), and the magnetic strip (26) has the same magnetism as the permanent magnet (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010058667.2A CN111262139B (en) | 2020-01-18 | 2020-01-18 | Fire extinguishing device for power distribution cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010058667.2A CN111262139B (en) | 2020-01-18 | 2020-01-18 | Fire extinguishing device for power distribution cabinet |
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| CN111262139A CN111262139A (en) | 2020-06-09 |
| CN111262139B true CN111262139B (en) | 2021-10-15 |
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| CN202010058667.2A Active CN111262139B (en) | 2020-01-18 | 2020-01-18 | Fire extinguishing device for power distribution cabinet |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111864563B (en) * | 2020-07-28 | 2021-04-27 | 东营市南方电器有限责任公司 | Fire extinguishing type power distribution cabinet based on high-temperature demagnetization principle |
| CN111987603A (en) * | 2020-09-01 | 2020-11-24 | 郭俊江 | Box-type substation based on intelligent fire extinguishing system |
| CN112117732A (en) * | 2020-09-15 | 2020-12-22 | 郭停莉 | Isolated fire-proof cable trench |
| CN113319193B (en) * | 2021-05-13 | 2022-08-19 | 广州凌杭网络科技有限公司 | Punching device for monitoring equipment shell |
| CN113708245B (en) * | 2021-08-25 | 2023-10-13 | 安徽富煌电力装备科技有限公司 | Distributed photovoltaic grid-connected cabinet with leakage protection function |
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| CN111262139A (en) | 2020-06-09 |
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