CN110932110A - Power cabinet convenient to remote monitoring - Google Patents
Power cabinet convenient to remote monitoring Download PDFInfo
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- CN110932110A CN110932110A CN201911392431.6A CN201911392431A CN110932110A CN 110932110 A CN110932110 A CN 110932110A CN 201911392431 A CN201911392431 A CN 201911392431A CN 110932110 A CN110932110 A CN 110932110A
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- cabinet body
- assembly
- cabinet
- fire extinguishing
- exhaust
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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
- 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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/04—Control of fire-fighting equipment with electrically-controlled release
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- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention relates to a power cabinet convenient for remote monitoring, which relates to the technical field of power cabinets and comprises a cabinet body and a cabinet door, wherein a fire extinguishing assembly, an exhaust assembly, a sealing assembly and a control assembly are arranged in the cabinet body; the fire extinguishing assembly comprises a fire extinguishing tank arranged in the cabinet body and an electromagnetic valve arranged on the fire extinguishing tank, flame retardant gas is filled in the fire extinguishing tank, and the air pressure in the fire extinguishing tank is greater than the standard atmospheric pressure; when the smoke sensor detects smoke generated in the cabinet body, a trigger signal is output, and the controller is electrically connected with the electromagnetic valve to receive and respond to the trigger signal to control the electromagnetic valve to be opened. The invention has the effect of protecting other electrical elements to reduce property loss when extinguishing a fire.
Description
Technical Field
The invention relates to the technical field of power cabinets, in particular to a power cabinet convenient for remote monitoring.
Background
At present, a power cabinet refers to an electrical control cabinet assembly for providing power for normal operation of a whole machine, and a contactor, a frequency converter, a high-voltage cabinet, a transformer and the like are arranged in the power cabinet. The power cabinet can be divided into an outdoor power cabinet and an indoor power cabinet, and is divided into a suspension type power cabinet and a floor type power cabinet from the installation, and the power cabinet mainly has the functions of supplying power to electric equipment, starting and stopping the electric equipment for operation and detecting the operation of the equipment and protecting the electric equipment.
The internal space of the existing power cabinet can not be adjusted, the number of internal electrical elements is large, the heat productivity of the electrical elements is large, the heat dissipation performance of the power cabinet is poor, and related devices are easily burnt out due to overhigh temperature in the power cabinet, so that a fire disaster is caused. The conflagration that electric power facility caused is difficult to put out, and the loss of bringing is very serious usually, consequently can effectively alleviate the loss with its first time putting out when the switch board conflagration out, falls to economic loss to minimumly.
Chinese utility model, publication number is CN209390531U discloses a PLC switch board of dustproof fire prevention, including switch board body, first wiring board, second wiring board, supporting leg, cooling fan, second fly leaf, first electric telescopic handle, second electric telescopic handle, power control panel, connecting rod, roof, foam fire extinguishing tank, shower nozzle, temperature sensor, first threading groove and second threading groove, four corners in bottom of switch board body all are equipped with the supporting leg, one side of switch board body is equipped with first wiring board. This PLC switch board can put out a fire to the PLC switch board at any time through the foam jar that goes out fire that its top set up, prevents the emergence of conflagration.
The above prior art solutions have the following drawbacks: because the foam fire extinguisher can cause the damage to other normal electrical components after using, therefore general fire elimination back, the electrical component in the power cabinet also is difficult to reuse to cause property loss.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the power cabinet convenient for remote monitoring, which can protect other electrical elements during fire extinguishing, thereby reducing property loss.
The above object of the present invention is achieved by the following technical solutions:
a power cabinet convenient for remote monitoring comprises a cabinet body and a cabinet door, wherein a fire extinguishing assembly, an exhaust assembly, a sealing assembly and a control assembly are arranged in the cabinet body, the control assembly is used for controlling the fire extinguishing assembly, the exhaust assembly and the sealing assembly, and the control assembly comprises a smoke sensor arranged in the cabinet body and a controller electrically connected with the smoke sensor;
the fire extinguishing assembly comprises a fire extinguishing tank arranged in the cabinet body and an electromagnetic valve arranged on the fire extinguishing tank, flame retardant gas is filled in the fire extinguishing tank, and the air pressure in the fire extinguishing tank is greater than the standard atmospheric pressure;
when the smoke sensor detects smoke generated in the cabinet body, a trigger signal is output, the controller is electrically connected with the electromagnetic valve to receive and respond to the trigger signal to control the opening of the electromagnetic valve, the control assembly is electrically connected with the exhaust assembly to control the exhaust assembly to exhaust air in the cabinet body, and the control assembly is electrically connected with the sealing assembly to control the sealing assembly to seal the internal space of the cabinet body.
By adopting the technical scheme, smoke is generated when the electric elements in the cabinet body are burnt due to high temperature, the smoke triggers the smoke sensor and outputs a trigger signal when passing through the smoke sensor, and the controller controls the electromagnetic valve to be opened when receiving the trigger signal, so that the flame-retardant gas enters the cabinet body, and the comburent and oxygen are isolated, thereby achieving the effect of extinguishing fire; the control assembly controls the exhaust assembly to exhaust air in the cabinet body, so that the density of oxygen is reduced, the filling of flame-retardant gas is facilitated, and the fire extinguishing effect is improved; and the control assembly controls the closed assembly to close the internal space of the cabinet body, so that the external air is prevented from entering the cabinet body to influence the flame retardance of the combustion substances, and the fire extinguishing tank is filled with the flame retardant gas, so that the flame retardant gas can not damage electrical elements except the electrical elements which are combusted, and after the flame retardant gas is dissipated, part of the electrical elements can still be used after being inspected, so that the effect of protecting other electrical elements is achieved, and property loss is reduced.
The present invention in a preferred example may be further configured to: the flame-retardant gas adopts nitrogen and/or carbon dioxide.
By adopting the technical scheme, the nitrogen or the carbon dioxide is flame retardant gas, and the nitrogen is inert gas, so that after the nitrogen or the carbon dioxide fills the internal space of the cabinet body, the combustion of the electric elements can be effectively prevented, and the fire extinguishing effect is achieved; the nitrogen or the carbon dioxide is not easy to damage the electrical elements, so that the effects of protecting other electrical elements are achieved, and property loss is reduced.
The present invention in a preferred example may be further configured to: the fire extinguishing tank is arranged at the bottom in the cabinet body, the top wall of the cabinet body is provided with an exhaust port in a through mode, the exhaust assembly comprises a fan arranged at the top of the cabinet body, and an air inlet of the fan is opposite to the exhaust port so that air in the cabinet body can be separated from the cabinet body.
Through adopting above-mentioned technical scheme, the jar of putting out a fire sets up in cabinet body bottom, and the gas vent sets up in cabinet body top, drives the internal air of cabinet and discharges from the gas vent when the fan operates, and flame retardant gas rises from cabinet body bottom to this reaches laminar flow effect, reduces turbulent phenomenon, thereby reduces the density of oxygen, improves the internal flame retardant gas's of cabinet purity, thereby promotes the fire control effect.
The present invention in a preferred example may be further configured to: the exhaust assembly comprises a separation blade arranged at one side of the exhaust port close to the cabinet body, and the separation blade covers the exhaust port and leaves an air gap with the edge of the exhaust port.
Through adopting above-mentioned technical scheme, make the internal air of cabinet discharge along the air gap between separation blade and the gas vent border through the separation blade to this disturbance that reduces the air current makes things convenient for the air escape cabinet body of cabinet body top corner simultaneously, with this residue that reduces oxygen, improves flame retardant efficiency.
The present invention in a preferred example may be further configured to: the control assembly further comprises a photoreceptor arranged on the cabinet door or the cabinet body and used for detecting the brightness in the cabinet body, the photoreceptor is opposite to the electric element and outputs a photosensitive signal when the photoreceptor detects that the brightness in the cabinet body is greater than a set value, the controller is electrically connected with the photoreceptor to respond to the photosensitive signal to control the exhaust assembly to exhaust air in the cabinet body, and the smoke sensor is arranged at the exhaust port to detect smoke in the exhaust air.
Through adopting above-mentioned technical scheme, when the internal flame that produces of cabinet, the flame can promote the internal luminance of cabinet, triggers and exports photosensing signal when the photoreceptor detects luminance and is greater than the setting value, and the controller responds to photosensing signal control exhaust assembly and discharges the internal air of cabinet to this makes smog be close to the gas vent along with the air, and smoke transducer sets up in gas vent department, thereby makes things convenient for smoke transducer to detect smog, thereby reduces and postpones, promotes the security.
The present invention in a preferred example may be further configured to: the optical fiber is connected to the light sensor, the optical fiber is provided with a plurality of optical fibers which are dispersed at each position of the cabinet door or the cabinet body, one end, away from the light sensor, of the optical fiber is opposite to the electric element, and when any optical fiber or the plurality of optical fibers receive light with the brightness larger than a set value, the light sensor outputs a light sensing signal.
By adopting the technical scheme, the plurality of optical fibers are dispersed at each position of the cabinet body or the cabinet door, so that each electric element in the cabinet body is detected, and the phenomenon that the distance between the electric element for shielding the photoreceptor or burning the photoreceptor and the photoreceptor is too far to influence the normal triggering of the photoreceptor is avoided.
The present invention in a preferred example may be further configured to: the intelligent cabinet is characterized in that a wireless transmitter is arranged on the cabinet body, a wireless receiver in signal connection with the wireless transmitter is arranged in the master control room, a warning lamp is electrically connected to the wireless receiver, the wireless transmitter is electrically connected with the photoreceptor to respond to a photosensitive signal and output a warning signal to the wireless receiver, and the wireless receiver responds to the warning signal to control the warning lamp to light up.
Through adopting above-mentioned technical scheme, wireless transmitter responds the photosensing signal and to wireless receiver output warning signal, and wireless receiver responds warning signal control warning light and lights to this suggestion operating personnel in time inspect the internal electric elements's of cabinet state, thereby make emergent action.
The present invention in a preferred example may be further configured to: the seal assembly comprises a balloon arranged on the cabinet door and abutted against the side of the opening edge of the cabinet body in a surrounding manner and a sealing strip arranged on the opening edge of the cabinet body, wherein the outer ring wall of the balloon is abutted against the sealing strip and the inner ring wall of the balloon is connected with the cabinet door in a sealing manner.
Through adopting above-mentioned technical scheme, the air gap at cabinet door and cabinet body opening border reduces when balloon and sealing strip butt to this leakproofness that improves the cabinet body reduces the entering of oxygen, thereby plays fire prevention fire-retardant effect.
The present invention in a preferred example may be further configured to: an inner cavity is formed in the balloon along the length direction of the balloon, a gas storage tank is communicated with the balloon, the gas pressure of the gas storage tank is greater than that in the balloon, an electric control valve is arranged on a pipeline through which the balloon is communicated with the gas storage tank, and the controller is electrically connected with the electric control valve to respond to a photosensitive signal to open the electric control valve so as to enable the gas storage tank to inflate the balloon.
By adopting the technical scheme, the controller responds to the photosensitive signal to open the electric control valve, gas in the gas storage tank enters the inner cavity of the air ring under the action of pressure after the electric control valve is opened, and the air ring is bulged at the moment, so that gaps between the air ring and the opening edge of the cabinet body are reduced, the sealing property is improved, the inside and the outside of the cabinet body are isolated, and the influence on the flame-retardant effect caused by the fact that oxygen enters the cabinet body is avoided.
The present invention in a preferred example may be further configured to: and a pressure release valve is arranged on a pipeline communicated with the outside of the cabinet body through the air ring, and the pressure release valve is positioned outside the cabinet body and used for responding the action of an operator to open and close the inner cavity to release gas.
Through adopting above-mentioned technical scheme, only need open the relief valve when the cabinet body is opened to operating personnel to this gas that releases the gas ring inner chamber, open the cabinet door with this convenience of operating personnel and inspect.
In summary, the invention includes at least one of the following beneficial technical effects:
the smoke generated when the electric element burns triggers the smoke sensor and enables the smoke sensor to output a trigger signal, and the controller controls the electromagnetic valve to open when receiving the trigger signal, so that the flame-retardant gas enters the cabinet body, and the comburent and oxygen are isolated, thereby achieving the effect of fire extinguishing; the control assembly controls the exhaust assembly to exhaust air in the cabinet body, so that the density of oxygen is reduced, the filling of flame-retardant gas is facilitated, and the fire extinguishing effect is improved; the control assembly controls the sealing assembly to seal the internal space of the cabinet body, so that the external air is prevented from entering the cabinet body to influence the flame retardance of the comburent; the fire extinguishing tank is filled with the flame-retardant gas, and the flame-retardant gas cannot damage the electrical elements, so that the flame-retardant gas plays a role in protecting other electrical elements, and property loss is reduced;
the fire extinguishing tank is arranged at the bottom of the cabinet body, the exhaust port is arranged at the top of the cabinet body, when the fan runs, air in the cabinet body is driven to be exhausted from the exhaust port, and the flame-retardant gas rises from the bottom of the cabinet body, so that a laminar flow effect is achieved, a turbulent flow phenomenon is reduced, the density of oxygen is reduced, the purity of the flame-retardant gas in the cabinet body is improved, and the fire extinguishing effect is improved;
when the internal flame that produces of cabinet, the flame can promote the internal luminance of cabinet, triggers and output photosensing signal when the photoreceptor detects luminance and is greater than the setting value, and the controller responds to photosensing signal control exhaust assembly and discharges the internal air of cabinet to this makes smog be close to the gas vent along with the air, and smoke transducer sets up in gas vent department, thereby makes things convenient for smoke transducer to detect smog, thereby reduces and postpones, promotes the security.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
fig. 2 is a schematic diagram of an exploded structure of the present embodiment, mainly showing a smoke sensor;
FIG. 3 is a schematic view of a portion of the structure of the present embodiment, mainly illustrating the pressure relief valve;
FIG. 4 is an enlarged partial schematic view of portion A of FIG. 1;
fig. 5 is a schematic circuit diagram of the present embodiment.
Reference numerals: 1. a cabinet body; 11. an exhaust port; 12. a cabinet door; 2. a fire extinguishing assembly; 21. a fire extinguishing tank; 22. an air outlet pipe; 23. an electromagnetic valve; 3. an exhaust assembly; 31. a fan; 32. a baffle plate; 4. a closure assembly; 41. a balloon; 43. a sealing strip; 44. a gas storage tank; 45. an electrically controlled valve; 46. a pressure relief valve; 5. a control component; 51. a smoke sensor; 52. a controller; 53. a photoreceptor; 54. an optical fiber.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the power cabinet convenient for remote monitoring disclosed by the invention comprises a cabinet body 1 and a cabinet door 12, wherein a fire extinguishing assembly 2, an exhaust assembly 3, a sealing assembly 4 and a control assembly 5 are arranged in the cabinet body 1. Control assembly 5 is used for controlling fire extinguishing assembly 2, exhaust assembly 3 and seal assembly 4, seals 1 inner space of the cabinet body through seal assembly 4, and through remaining oxygen in the exhaust assembly 3 exhaust cabinet body 1, eliminates the flame through fire extinguishing assembly 2 to play the effect of protection electrical component. The cabinet body 1 is cuboid, the interior of the cabinet body is hollow, the opening of the cabinet body is square, and the cabinet door 12 is hinged with the opening edge of the cabinet body 1.
The fire extinguishing assembly 2 comprises a fire extinguishing tank 21 arranged in the cabinet body 1 and an electromagnetic valve 23 arranged on the fire extinguishing tank 21, and the fire extinguishing tank 21 is filled with flame retardant gas. The fire extinguishing tank 21 is square, is fixed at the bottom in the cabinet body 1 through screws, and the top of the fire extinguishing tank 21 is communicated with an air outlet pipe 22, and the air outlet pipe 22 is square tube-shaped and extends horizontally, and a plurality of nozzles for spraying flame retardant gas are arranged on the horizontally extending section of the air outlet pipe. The electromagnetic valve 23 is arranged on the air outlet pipe 22, and the air pressure in the fire extinguishing tank 21 is greater than the standard atmospheric pressure, so that the flame-retardant gas in the fire extinguishing tank 21 enters the cabinet body 1 through the nozzle of the air outlet pipe 22 when the electromagnetic valve 23 is opened. Nitrogen and/or carbon dioxide are used as the flame retardant gas, both nitrogen and carbon dioxide are flame retardant gases, and nitrogen is an inert gas, so nitrogen is preferred in the embodiment. After the nitrogen or the carbon dioxide is filled in the internal space of the cabinet body 1, the electric elements can be effectively prevented from burning, thereby playing a role in extinguishing fire. And the nitrogen or the carbon dioxide is not easy to damage the electrical elements, so that the effect of protecting other electrical elements is achieved, and property loss is reduced.
Referring to fig. 2 and 3, an exhaust port 11 is formed through the top wall of the cabinet 1, the exhaust port 11 is circular, and the exhaust assembly 3 includes a fan 31 disposed at the top of the cabinet 1 and a baffle 32 disposed at one side of the exhaust port 11 close to the inside of the cabinet 1. The rotation axis of the fan 31 coincides with the central axis of the exhaust port 11, and the air inlet of the fan 31 is opposite to the exhaust port 11 so that the air in the cabinet 1 escapes from the cabinet 1 through the exhaust port 11. Because the jar 21 that goes out a fire sets up in the cabinet body 1 bottom, and gas vent 11 sets up in the cabinet body 1 top, consequently drives the air in the cabinet body 1 and discharges from gas vent 11 when fan 31 operates, and flame retardant gas rises from the cabinet body 1 bottom for both smooth transition of air and flame retardant gas reaches the laminar flow effect with this, reduces turbulent phenomenon, thereby reduces the density of oxygen, improves the interior flame retardant gas's of the cabinet body purity, thereby promotes the fire extinguishing effect.
The separation blade 32 passes through the fix with screw with the cabinet body 1, and the separation blade 32 covers the gas vent 11 and leaves the air gap with gas vent 11 border to this air that makes in the cabinet body 1 is discharged along the air gap between separation blade 32 and the gas vent 11 border, has reduced the disturbance of air current, and the setting up of separation blade 32 makes things convenient for the air discharge cabinet body 1 of cabinet body 1 top edge department simultaneously, with this residue that reduces oxygen, improves fire-retardant effect.
Referring to fig. 2 and 4, the sealing assembly 4 includes a balloon 41 disposed on the cabinet door 12 and abutting against the opening edge of the cabinet 1, and a sealing strip 43 disposed on the opening edge of the cabinet 1, wherein the sealing strip 43 is distributed around the opening of the cabinet 1 and is welded to the opening edge of the cabinet 1. An annular groove (not shown) is arranged on the edge of one side of the cabinet door 12 close to the cabinet body 1, the annular groove is distributed around the cabinet door 12, the air ring 41 is made of rubber and is in a square frame shape, the inner ring wall of the air ring is fixedly bonded with the inner wall of the annular groove, and the outer ring wall of the air ring is abutted to the sealing strip 43. An inner cavity is formed in the balloon 41 along the length direction of the balloon, the cross section of the inner cavity along the width direction of the balloon 41 is circular, the balloon 41 is communicated with a gas storage tank 44, and the gas storage tank 44 and the cabinet door 12 are fixed through screws and are filled with nitrogen.
The atmospheric pressure of gas holder 44 is greater than the atmospheric pressure in the balloon 41, and be provided with electric control valve 45 on the pipeline of balloon 41 and gas holder 44 intercommunication, the inner chamber that the gas in the gas holder 44 got into balloon 41 under the pressure effect when electric control valve 45 opened, balloon 41 is bloated this moment to this gap that reduces balloon 41 and cabinet body 1 opening border, thereby improve the leakproofness, make cabinet body 1 isolated inside and outside, with this avoid oxygen to get into in the cabinet body 1 and influence flame retardant efficiency. Referring to fig. 3, a pressure release valve 46 is arranged on a pipeline through which the balloon 41 is communicated with the outside of the cabinet 1, the pressure release valve 46 is located outside the cabinet 1 and is used for responding to the action of an operator to open and close the inner cavity, when the pressure release valve 46 is opened, gas in the inner cavity of the balloon 41 is discharged, and at the moment, the air gap between the balloon 41 and the sealing strip 43 is increased to reduce the friction force between the balloon 41 and the sealing strip, so that the operator can conveniently open the cabinet door 12 to check the electric elements.
Referring to fig. 1 and 2, the control assembly 5 includes a smoke sensor 51 disposed in the cabinet 1, a controller 52 electrically connected to the smoke sensor 51, and a photoreceptor 53 disposed on the cabinet door 12 for detecting brightness in the cabinet 1. The smoke sensor 51 is of an MQ-2 type, is positioned at the exhaust port 11 and fixed with the cabinet body 1 through screws, and outputs a trigger signal when the smoke sensor 51 detects smoke generated in the cabinet body 1. The controller 52 is electrically connected to the solenoid valve 23 to receive and respond to the trigger signal to control the opening of the solenoid valve 23, so as to release the flame-retardant gas in the fire extinguishing tank 21, thereby isolating oxygen and achieving the effect of timely extinguishing fire.
Referring to fig. 5, the photoreceptor 53 includes a photo resistor RT, a voltage dividing resistor R1 connected in series with the photo resistor RT, and a voltage comparator N1, wherein one end of the photo resistor RT is connected to the VCC terminal, and one end of the voltage dividing resistor R1 is grounded. The "+" input terminal of the voltage comparator N1 is connected to the connection point of the photo resistor RT and the divider resistor R1, and the "-" input terminal thereof inputs the set voltage value. The photoresistor RT has the characteristic that the resistance value is lower when the light intensity is larger, so when a flame is generated in the cabinet 1, the brightness in the cabinet 1 is improved, when the brightness is improved to a set value, the voltage of the + input end of the voltage comparator N1 is larger than the set voltage value input by the-input end thereof, and at the moment, the output end of the voltage comparator N1 outputs a high-level signal, namely a photosensitive signal.
Referring to fig. 1, a plurality of optical fibers 54 are connected to the photoreceptor 53, one end of each of the optical fibers 54 is opposite to the photo resistor RT, the other end of each of the optical fibers 54 is distributed at each position of the cabinet door 12 and is horizontally opposite to each electrical component, when any optical fiber 54 or the optical fibers 54 receives light with brightness greater than a predetermined value, the photoreceptor 53 outputs a photosensitive signal, so as to detect each electrical component in the cabinet 1, and avoid the influence on the normal triggering of the photoreceptor 53 caused by the fact that the electrical component shields the photoreceptor 53 or the distance between the burned electrical component and the photoreceptor 53 is too far, thereby improving the detection accuracy.
And the controller 52 is electrically connected with the photoreceptor 53 to respond to the photoreception signal to control the exhaust assembly 3 to exhaust the air in the cabinet 1, the controller 52 comprises an NPN type triode Q1 and a relay KM1, an emitter of the NPN type triode Q1 is grounded, a collector of the NPN type triode Q1 is connected to the VCC terminal through a coil of the relay KM1, and a base of the NPN type triode Q1 is connected to the output terminal of the voltage comparator N1 to receive the photoreception signal. The normally open switch KM1-1 of relay KM1 coil is connected in series in the power supply loop of fan 31, switches on when NPN type triode Q1 receives photosensitive signal, i.e. high level signal, and relay KM1 gets the electricity and makes its normally open switch KM1-1 closed this moment, and fan 31 rotates this moment to the air in the discharge cabinet body 1, thereby makes things convenient for fire retardant gas's filling.
Referring to fig. 2 and 5, the electric control valve 45 between the air tank 44 and the air ring 41 has the characteristics of being turned on and off when power is turned on, and the electric control valve 45 is connected in series between the emitter of the NPN-type triode Q1 and the ground, so that the controller 52 responds to the light sensing signal to turn on the electric control valve 45, so that the air tank 44 inflates the inner cavity of the air ring 41, thereby closing the cabinet door 12 and the cabinet body 1, reducing the entrance of outside air, and improving the flame retardant effect.
Be provided with wireless transmitter on the cabinet body 1, wireless transmitter is located the cabinet body 1 and passes through the fix with screw with the cabinet body 1, total indoor wireless receiver who is provided with wireless transmitter signal connection of controlling, wireless transmitter and wireless receiver all adopt the GPRS module of ZHS2911 model, ZHS2911 has the function of receiving and dispatching signals simultaneously. Be connected with the warning light on the wireless receiver, the warning light adopts the LED lamp, and wireless transmitter is connected with the photoreceptor 53 electricity and outputs warning signal in order to respond photosensing signal and to wireless receiver, and wireless receiver responds warning signal control warning light and lights to this suggestion operating personnel in time inspects the internal electric elements's of cabinet state 1 state, thereby makes emergent action.
The implementation principle of the embodiment is as follows: when the cabinet body 1 generates the flame, the flame can improve the brightness in the cabinet body 1, when the light sensor 53 detects that the brightness is larger than a set value, the light sensor is triggered and outputs a light sensing signal, the controller 52 responds to the light sensing signal to control the fan 31 to rotate, so that the air in the cabinet body 1 is discharged, at the moment, the smoke is close to the exhaust port 11 along with the air, and the smoke sensor 51 is arranged at the exhaust port 11, so that the smoke sensor 51 can detect the smoke conveniently. Meanwhile, the controller 52 controls the electric control valve 45 to open, so that the gas in the gas storage tank 44 enters the inner cavity of the balloon 41, so that the balloon 41 expands and the air gap between the balloon and the sealing strip 43 is reduced, and the fire extinguishment caused by the external air entering the cabinet body 1 is avoided.
When smoke passes through the smoke sensor 51, the smoke sensor 51 is triggered and outputs a trigger signal, and when the controller 52 receives the trigger signal, the electromagnetic valve 23 is controlled to be opened, so that the flame-retardant gas enters the cabinet body 1, and comburent and oxygen are isolated, thereby achieving the effect of extinguishing fire. And the control component 5 controls the exhaust component 3 to exhaust the air in the cabinet body 1, so that the density of oxygen is reduced, the filling of flame retardant gas is facilitated, and the fire extinguishing effect is improved. Because the fire extinguishing tank 21 is filled with nitrogen, the nitrogen can not damage the electrical elements, and therefore after the flame retardant gas is dissipated, part of the electrical elements can still be used after being tested, so that the effect of protecting other electrical elements is achieved, and property loss is reduced.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides a power cabinet convenient to remote monitoring, includes the cabinet body (1) and cabinet door (12), its characterized in that: a fire extinguishing assembly (2), an exhaust assembly (3), a sealing assembly (4) and a control assembly (5) are arranged in the cabinet body (1), the control assembly (5) is used for controlling the fire extinguishing assembly (2), the exhaust assembly (3) and the sealing assembly (4), and the control assembly (5) comprises a smoke sensor (51) arranged in the cabinet body (1) and a controller (52) electrically connected with the smoke sensor (51);
the fire extinguishing assembly (2) comprises a fire extinguishing tank (21) arranged in the cabinet body (1) and an electromagnetic valve (23) arranged on the fire extinguishing tank (21), wherein flame-retardant gas is filled in the fire extinguishing tank (21), and the air pressure in the fire extinguishing tank (21) is greater than the standard atmospheric pressure;
when the smoke sensor (51) detects smoke generated in the cabinet body (1), a trigger signal is output, the controller (52) is electrically connected with the electromagnetic valve (23) to receive and respond to the trigger signal to control the electromagnetic valve (23) to be opened, the control assembly (5) is electrically connected with the exhaust assembly (3) to control the exhaust assembly (3) to exhaust air in the cabinet body (1), and the control assembly (5) is electrically connected with the sealing assembly (4) to control the sealing assembly (4) to seal the inner space of the cabinet body (1).
2. The power cabinet convenient for remote monitoring according to claim 1, characterized in that: the flame-retardant gas adopts nitrogen and/or carbon dioxide.
3. The power cabinet convenient for remote monitoring according to claim 1, characterized in that: the fire extinguishing tank (21) is arranged at the bottom in the cabinet body (1), the top wall of the cabinet body (1) is communicated with an exhaust port (11), the exhaust assembly (3) comprises a fan (31) arranged at the top of the cabinet body (1), and an air inlet of the fan (31) is opposite to the exhaust port (11) so that air in the cabinet body (1) is separated from the cabinet body (1).
4. The power cabinet convenient for remote monitoring according to claim 3, characterized in that: exhaust subassembly (3) are including setting up separation blade (32) that one side in exhaust port (11) lean on cabinet body (1), separation blade (32) cover exhaust port (11) and leave the air gap with exhaust port (11) border.
5. The power cabinet convenient for remote monitoring according to claim 3, characterized in that: the control assembly (5) is still including setting up photoreceptor (53) that is used for detecting luminance in the cabinet body (1) on cabinet door (12) or the cabinet body (1), and photoreceptor (53) are relative and output sensitization signal when photoreceptor (53) detect the interior luminance of the cabinet body (1) and are greater than the setting value, controller (52) are connected with photoreceptor (53) electricity in order to respond to sensitization signal control exhaust assembly (3) exhaust cabinet body (1) interior air, smoke transducer (51) set up exhaust port (11) and are in order to detect the smog in the exhaust air.
6. The power cabinet convenient for remote monitoring according to claim 5, characterized in that: the optical fiber (54) is connected to the photoreceptor (53), the optical fiber (54) is provided with a plurality of optical fibers and is dispersed at each position of the cabinet door (12) or the cabinet body (1), one end, away from the photoreceptor (53), of each optical fiber (54) is opposite to the electric element, and when any optical fiber (54) or the optical fibers (54) receives light with the brightness larger than a set value, the photoreceptor (53) outputs a photosensitive signal.
7. The power cabinet convenient for remote monitoring according to claim 1, characterized in that: be provided with wireless transmitter on the cabinet body (1), the indoor wireless receiver who is provided with wireless transmitter signal connection of total accuse, the electricity is connected with the warning light on the wireless receiver, wireless transmitter is connected with response sensitization signal and to wireless receiver output warning signal with photoreceptor (53) electricity, wireless receiver responds warning signal control warning light and lights.
8. The power cabinet convenient for remote monitoring according to claim 1, characterized in that: the sealing assembly (4) comprises a balloon (41) arranged on the cabinet door (12) and abutted against the opening edge of the cabinet body (1) in a surrounding manner and a sealing strip (43) arranged on the opening edge of the cabinet body (1), wherein the outer ring wall of the balloon (41) is abutted against the sealing strip (43) and the inner ring wall of the balloon is connected with the cabinet door (12) in a sealing manner.
9. The power cabinet convenient for remote monitoring according to claim 8, wherein: an inner cavity is formed in the balloon (41) along the length direction of the balloon, a gas storage tank (44) is communicated with the balloon (41), the air pressure of the gas storage tank (44) is larger than that of the balloon (41), an electric control valve (45) is arranged on a pipeline communicated with the balloon (41) and the gas storage tank (44), and the controller (52) is electrically connected with the electric control valve (45) to respond to a photosensitive signal to open the electric control valve (45) so that the gas storage tank (44) inflates the balloon (41).
10. The power cabinet convenient for remote monitoring according to claim 9, characterized in that: a pressure release valve (46) is arranged on a pipeline communicated with the outside of the cabinet body (1) through the air ring (41), and the pressure release valve (46) is located outside the cabinet body (1) and used for responding to the action of an operator to open and close the inner cavity to release gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911392431.6A CN110932110A (en) | 2019-12-30 | 2019-12-30 | Power cabinet convenient to remote monitoring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911392431.6A CN110932110A (en) | 2019-12-30 | 2019-12-30 | Power cabinet convenient to remote monitoring |
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| CN110932110A true CN110932110A (en) | 2020-03-27 |
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| CN201911392431.6A Pending CN110932110A (en) | 2019-12-30 | 2019-12-30 | Power cabinet convenient to remote monitoring |
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| CN112316329A (en) * | 2020-09-24 | 2021-02-05 | 刘喜 | Power equipment with fire extinguishing function |
| CN113113851A (en) * | 2021-02-05 | 2021-07-13 | 丁玉玺 | Electric cabinet for transformer substation with anticorrosive protect function of malleation |
| CN114642840A (en) * | 2022-03-17 | 2022-06-21 | 国网湖南省电力有限公司 | Autonomous detection fire extinguishing method for converter station valve hall and fire-fighting robot |
| CN115634397A (en) * | 2022-10-24 | 2023-01-24 | 合肥德特飞思信息技术有限责任公司 | Multi-parameter fire-fighting and fire-extinguishing detection system for railway signal equipment cabinet and working method of multi-parameter fire-fighting and fire-extinguishing detection system |
| CN116093766A (en) * | 2022-12-30 | 2023-05-09 | 江苏立泰电器有限公司 | Power distribution cabinet with automatic fire extinguishing system |
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Application publication date: 20200327 |