CN220775019U - Power supply and distribution control cabinet - Google Patents
Power supply and distribution control cabinet Download PDFInfo
- Publication number
- CN220775019U CN220775019U CN202322126989.8U CN202322126989U CN220775019U CN 220775019 U CN220775019 U CN 220775019U CN 202322126989 U CN202322126989 U CN 202322126989U CN 220775019 U CN220775019 U CN 220775019U
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- CN
- China
- Prior art keywords
- cabinet
- cabinet body
- control cabinet
- carbon dioxide
- fire extinguishing
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 64
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 32
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 32
- 239000000779 smoke Substances 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 230000000007 visual effect Effects 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007480 spreading Effects 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a power supply and distribution control cabinet, and relates to a control cabinet. Comprises a cabinet body, a cabinet door, a controller and a smoke sensor; the cabinet wall of the cabinet body is provided with a plurality of mounting ports for mounting the exhaust fan and the ventilation pore plate, the cabinet body is internally provided with a carbon dioxide fire extinguishing system, a gas storage tank of the carbon dioxide fire extinguishing system is arranged outside the cabinet body, and a spraying end of the carbon dioxide fire extinguishing system is mounted in the cabinet body; and the periphery of the mounting opening is provided with an automatic door assembly. The fire extinguishing device is practical and reliable, has good fire extinguishing effect, effectively solves the problem that the fire is rapidly spread due to rapid ventilation in the control cabinet in the fire caused by continuous short circuit in the control cabinet, reduces the risk of rapid fire spreading, and improves the safety of the control cabinet.
Description
Technical Field
The utility model relates to a control cabinet, in particular to a power supply and distribution control cabinet.
Background
The control cabinet is to assemble the switch equipment, the protection electrical equipment and the auxiliary equipment in the metal cabinet according to the electrical wiring requirement, the arrangement of the control cabinet meets the requirement of normal operation of the power system, the control cabinet is convenient to overhaul, the safety of personnel and surrounding equipment is not endangered, and the circuit can be switched on or off by means of manual or automatic switches during normal operation. Because more electrical equipment is arranged in the control cabinet, a large amount of heat can be accumulated in the control cabinet, and therefore the cooling fans are arranged in the control cabinet to realize cooling of the control cabinet. In addition, in order to reduce the risk of fire caused by electrical equipment inside the control cabinet, the art has also proposed to implement this by adding fire extinguishing means. An automatic fire extinguishing high-voltage electrical appliance control cabinet disclosed by the publication number CN205680934U and an automatic fire extinguishing control cabinet disclosed by the publication number CN217507971U are used for extinguishing open fire in the cabinet by automatically starting a fire extinguishing system when a fire disaster in the control cabinet is detected.
In an actual control cabinet fire accident, a significant portion of the fire is a fire caused by a short circuit. In these short-circuit fires, a part of the equipment is short-circuited to cause the terminal switch to trip in time and to be powered off, so that the fire is easy to control. However, there is still a situation that the tripping of the terminal switch is not triggered in time, and such fires are often generated in factories with larger power consumption, for example, the terminal switch cannot identify the short circuit of the line due to larger resistance at the short circuit position caused by aging of the line. This situation can lead to a continuous generation of a large amount of electric arcs, heat, and even open fires at the short circuit. The prior control cabinet fire extinguishing system does not aim at the fire disaster caused by the continuous short circuit of equipment in the control cabinet. For example, CN217507971U, after the fire extinguishing system acts, the controller controls the fan to operate, so that the fan generates wind force, and accelerates the ventilation in the cabinet body, so that the high temperature in the cabinet body is rapidly dissipated, and the dry powder in the cabinet body is adsorbed under the action of the fan and through the dust adsorption net while the cabinet body is dissipated. Because the blower is still running after the fire extinguishing system is started, ventilation inside and outside the cabinet can be quickened, continuous air input is carried out in the cabinet, and the fire spreading can be quickened under the condition of continuous short circuit.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the power supply and distribution control cabinet which has good fire extinguishing effect and reduces the risk of rapid fire spreading.
The utility model relates to a power supply and distribution control cabinet which comprises a cabinet body, a cabinet door, a controller and a smoke sensor, wherein the cabinet door is provided with a cabinet body; the cabinet wall of the cabinet body is provided with a plurality of mounting ports for mounting the exhaust fan and the ventilation pore plate, the cabinet body is internally provided with a carbon dioxide fire extinguishing system, a gas storage tank of the carbon dioxide fire extinguishing system is arranged outside the cabinet body, and a spraying end of the carbon dioxide fire extinguishing system is mounted in the cabinet body; and the periphery of the mounting opening is provided with an automatic door assembly.
The automatic door assembly comprises a door plate, an air cylinder and a sliding rail; the sliding rails are arranged on two sides of the mounting opening, the door plate is slidably arranged on the sliding rails, the air cylinder is fixedly arranged on the wall surface of the cabinet body through the connecting seat, and the piston end of the air cylinder is fixedly connected with the door plate.
The air cylinder is connected with the air storage tank through an air inlet pipe, and a control valve is arranged on the air inlet pipe.
The pressure sensor is arranged in the cabinet body and is electrically connected with a signal acquisition end of the controller, and a control end of the controller is electrically connected with a control valve on the cylinder exhaust pipe.
The exhaust pipe of the cylinder is positioned in the cabinet body, and a one-way valve is arranged in the exhaust pipe of the cylinder.
The air inlet pipe and the air outlet pipe are fireproof pipes.
An audible and visual alarm is installed at the top of the cabinet body, and the audible and visual alarm is electrically connected with the output end of the controller.
Advantageous effects
The utility model has the advantages that: the carbon dioxide fire extinguishing system is arranged in the cabinet body, the carbon dioxide fire extinguishing agent sprayed by the fire extinguishing system has the characteristics of cooling and isolating air, the interior of the cabinet body of a fire disaster can be cooled, and meanwhile, the contact between combustible materials in the cabinet body and the air can be isolated, so that the phenomenon that the combustible materials are continuously combusted under the conditions of high temperature and high heat can be effectively prevented. In addition, set up the automatically-controlled door subassembly in the erection port periphery, effectually solved in the conflagration that the control cabinet internal sustained short circuit arouses because of the inside quick problem that the conflagration spread that ventilates of control cabinet, reduced the risk that the conflagration spread fast, improved the security of control cabinet.
Drawings
FIG. 1 is a schematic perspective view of a control cabinet of the present utility model;
fig. 2 is a schematic diagram of the internal structure of the control cabinet of the present utility model.
Wherein: 1-cabinet body, 2-cabinet door, 3-gas holder, 4-controller, 5-audible and visual alarm, 6-air discharge fan, 7-air exchange orifice plate, 8-smoke sensor, 9-pressure sensor, 10-slide rail, 11-door plant, 12-cylinder.
Detailed Description
The utility model is further described below in connection with the examples, which are not to be construed as limiting the utility model in any way, but rather as falling within the scope of the claims.
Referring to fig. 1-2, the power supply and distribution control cabinet of the utility model comprises a cabinet body 1, a cabinet door 2, a controller 4 and a smoke sensor 8. The controller 4 is mounted on top of the cabinet 1 and the smoke sensor 8 is mounted in the cabinet 1. The wall of the cabinet body 1 is provided with a plurality of mounting openings for mounting the exhaust fan 6 and the ventilation pore plate 7. A carbon dioxide fire extinguishing system is arranged in the cabinet body 1. The carbon dioxide fire extinguishing system adopted in the embodiment is the existing fire extinguishing system in the market at present. The carbon dioxide fire extinguishing agent sprayed by the carbon dioxide fire extinguishing system has the characteristics of cooling and air isolation, so that when the carbon dioxide fire extinguishing agent is sprayed in the cabinet body 1, the interior of the cabinet body 1 can be cooled, and meanwhile, the contact between combustible substances in the cabinet body 1, such as a plastic shell of equipment and plastic parts in the plastic shell, and the air can be isolated, and the phenomenon that the combustible substances are continuously combusted under the conditions of high temperature and high heat can be effectively prevented. The gas holder 3 of carbon dioxide fire extinguishing systems sets up in the outside of cabinet body 1, and carbon dioxide fire extinguishing systems's injection end is installed in cabinet body 1, has realized the spraying of carbon dioxide fire extinguishing agent. The automatic door component is arranged on the periphery of the mounting port and used for closing the mounting port so as to prevent the cabinet body 1 from carrying out quick ventilation, effectively solve the problem that fire disaster rapidly spreads due to quick ventilation in the control cabinet in the fire disaster caused by continuous short circuit in the control cabinet, reduce the risk of rapid fire disaster spreading and improve the safety of the control cabinet.
The automatic door assembly of the present embodiment includes a door panel 11, an air cylinder 12, and a slide rail 10. The slide rail 10 is all installed to the both sides of installing port, and door plant 11 slidable mounting is on the slide rail, and cylinder 12 passes through connecting seat fixed mounting on the wall of cabinet body 1, and the piston end of cylinder 12 is with door plant 11 fixed connection. When the air cylinder 12 inflates, the piston end of the air cylinder stretches out and drives the door plate 11 to move towards the mounting opening to cover the mounting opening, so that the mounting opening is sealed, and the internal and external air in the cabinet body 1 is prevented from being exchanged.
Preferably, the cylinder 12 is connected with the air storage tank 3 through an air inlet pipe, and a control valve is arranged on the air inlet pipe and is electrically connected with the controller 4. Namely, the air source of the air cylinder 12 comes from the air storage tank 3 in the carbon dioxide fire extinguishing system, so that the complexity of the system and the receiving cost can be reduced.
In addition, install pressure sensor 9 in the cabinet body 1, pressure sensor 9 and the signal acquisition end electric connection of controller 4, the control end electric connection on the control valve on the cylinder 12 blast pipe of controller 4. The pressure sensor 9 can be used for monitoring the air pressure in the cabinet body 1, but when the controller 4 monitors that the air pressure value in the cabinet body 1 is higher than the set highest threshold value, a control signal is sent out to close a control valve on the air inlet pipe, and the control valve on the exhaust pipe is opened, so that the reset of the air cylinder 12 is realized, and the mounting port is opened for exhausting.
The exhaust fan 6 in the control cabinet of the embodiment is closed when the smoke sensor 8 alarms, so as to prevent the phenomenon that the air leakage in the cabinet body 1 is increased due to the continuous operation of the exhaust fan 6. For closing the exhaust fan 6, the specific technical means is that when the controller 4 receives the electric signal of the smoke sensor 8, the controller 4 cuts off the power supply to the exhaust fan 6 through the relay module.
Preferably, the exhaust pipe of the cylinder 12 is located in the cabinet 1, and a check valve is installed in the exhaust pipe of the cylinder 12. That is, carbon dioxide exhausted by resetting the air cylinder 12 is discharged into the cabinet body 1 without leading out the exhaust pipe outside the cabinet body 1, so that the use of the exhaust pipe can be reduced.
In the present embodiment, the carbon dioxide fire suppression system simultaneously stops the spraying of carbon dioxide when the cylinder 12 is reset. The controller 4 collects the pressure value of the pressure sensor 9 in real time, and when the controller 4 detects that the pressure value is lower than the set minimum threshold value, the air cylinder 12 is inflated again to enable the air cylinder to act so as to close the mounting opening. At the same time, the carbon dioxide fire extinguishing system is turned on to supply carbon dioxide into the cabinet 1. The fire disaster in the control cabinet can be extinguished in a reciprocating manner. The fire extinguishing mode has the advantages that: in the first and fire extinguishing processes, external air cannot enter the cabinet body 1; secondly, intermittent carbon dioxide supply is beneficial to saving carbon dioxide, and can effectively increase the spraying time of the carbon dioxide; thirdly, carbon dioxide is continuously discharged and supplied, so that the high-temperature carbon dioxide in the cabinet body 1 can be discharged, carbon dioxide compensation is realized, and the fire extinguishing is facilitated.
The utility model relates to a control method of a controller for a cylinder according to a pressure value, which belongs to the technical means disclosed in the automatic control technology, and the utility model does not improve the control method.
Preferably, the air inlet pipe and the air outlet pipe are fireproof pipes.
Preferably, the audible and visual alarm 5 is installed at the top of the cabinet body 1, and the audible and visual alarm 5 is electrically connected with the output end of the controller 4, so that the effect of timely reminding on-site staff of fire hazard in the control cabinet is achieved.
It should be noted that, because carbon dioxide belongs to a gas capable of suffocating people, a corresponding warning mark should be set on site to remind on site personnel to quickly evacuate from site after hearing/seeing the alarm of the audible and visual alarm, so as to prevent secondary accidents.
While only the preferred embodiments of the present utility model have been described above, it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these do not affect the effect of the implementation of the present utility model and the utility of the patent.
Claims (4)
1. A power supply and distribution control cabinet comprises a cabinet body (1), a cabinet door (2), a controller (4) and a smoke sensor (8); the novel fire-extinguishing cabinet is characterized in that a carbon dioxide fire-extinguishing system is arranged in the cabinet body (1), a gas storage tank (3) of the carbon dioxide fire-extinguishing system is arranged outside the cabinet body (1), and a spraying end of the carbon dioxide fire-extinguishing system is arranged in the cabinet body (1); the periphery of the mounting port is provided with an automatic door assembly;
the automatic door assembly comprises a door plate (11), an air cylinder (12) and a sliding rail (10); the two sides of the mounting opening are provided with sliding rails (10), the door plate (11) is slidably mounted on the sliding rails, the air cylinder (12) is fixedly mounted on the wall surface of the cabinet body (1) through a connecting seat, and the piston end of the air cylinder (12) is fixedly connected with the door plate (11);
the air cylinder (12) is connected with the air storage tank (3) through an air inlet pipe, and a control valve is arranged on the air inlet pipe;
the pressure sensor (9) is arranged in the cabinet body (1), the pressure sensor (9) is electrically connected with a signal acquisition end of the controller (4), and a control end of the controller (4) is electrically connected with a control valve on an exhaust pipe of the air cylinder (12).
2. A power supply and distribution control cabinet according to claim 1, characterized in that the exhaust pipe of the cylinder (12) is located in the cabinet body (1), and that a one-way valve is installed in the exhaust pipe of the cylinder (12).
3. A power supply and distribution control cabinet according to claim 1, wherein the air inlet pipe and the air outlet pipe are fireproof pipes.
4. The power supply and distribution control cabinet according to claim 1, wherein an audible and visual alarm (5) is installed at the top of the cabinet body (1), and the audible and visual alarm (5) is electrically connected with the output end of the controller (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322126989.8U CN220775019U (en) | 2023-08-08 | 2023-08-08 | Power supply and distribution control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322126989.8U CN220775019U (en) | 2023-08-08 | 2023-08-08 | Power supply and distribution control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220775019U true CN220775019U (en) | 2024-04-12 |
Family
ID=90600626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322126989.8U Active CN220775019U (en) | 2023-08-08 | 2023-08-08 | Power supply and distribution control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220775019U (en) |
-
2023
- 2023-08-08 CN CN202322126989.8U patent/CN220775019U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |