CN115054848A - Gas fire extinguishing device of power distribution cabinet - Google Patents
Gas fire extinguishing device of power distribution cabinet Download PDFInfo
- Publication number
- CN115054848A CN115054848A CN202210624739.4A CN202210624739A CN115054848A CN 115054848 A CN115054848 A CN 115054848A CN 202210624739 A CN202210624739 A CN 202210624739A CN 115054848 A CN115054848 A CN 115054848A
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- China
- Prior art keywords
- fire extinguishing
- distribution cabinet
- power distribution
- hole
- gas
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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
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
Abstract
The invention relates to a gas fire extinguishing device of a power distribution cabinet, which comprises a fire extinguishing agent storage device arranged outside the power distribution cabinet, a fire extinguishing agent spraying device, an exhaust device, a detection device and a control device, wherein the fire extinguishing agent spraying device, the exhaust device, the detection device and the control device are arranged in the power distribution cabinet; the fire extinguishing agent storage device is a gas cylinder filled with high-pressure carbon dioxide; the gas cylinder is provided with a gas outlet; the air outlet is provided with a pressure sensor and an electromagnetic valve; the fire extinguishing agent spraying device comprises a spray head arranged at the bottom in the power distribution cabinet; the pipeline is provided with an airflow one-way valve; the detection device comprises a smoke detector and a temperature-sensitive detector; the control device comprises a PLC controller; the PLC is respectively in signal connection with the smoke detector, the temperature-sensitive detector, the exhaust fan, the electromagnetic valve and the pressure sensor; the invention has the beneficial effects that: can carry out conflagration effectively and report an emergency and ask for help or increased vigilance, oxygen discharge in the switch board, release carbon dioxide gas isolated oxygen, destroy the condition of burning to the burning of termination combustible substance reaches the purpose of putting out a fire.
Description
Technical Field
The invention relates to the technical field of power distribution cabinets, in particular to a gas fire extinguishing device of a power distribution cabinet.
Background
When smoke is generated by burning in a power distribution cabinet or the temperature in the power distribution cabinet reaches a certain value, a fire alarm is given out, an exhaust fan at the top of the power distribution cabinet is started to exhaust oxygen in the power distribution cabinet, and simultaneously, a large amount of carbon dioxide gas is released below the cabinet body to isolate the oxygen so as to destroy the burning condition, quickly and effectively stop the continuous burning of combustible materials, achieve the purpose of fire extinguishing and ensure the safe and stable operation of equipment in the power distribution cabinet;
fire safety of electrical equipment has always been a major concern in the industry. At present, the switch board in the market basically only has the aerosol extinguishing device of fractional installation minicapacity, and the overwhelming majority all does not have extinguishing device, has buried the potential safety hazard for the emergence of conflagration undoubtedly. The aerosol has good fire extinguishing performance, but can not completely extinguish fire due to limited capacity, and residues exist after fire extinguishment, so that the aerosol has certain influence on precise instruments and electronic equipment, and belongs to an unclean fire extinguishing agent. Various switch boards are widely used, belong to closed electrical equipment again, especially under the unusual operating condition such as overheated, overload, the insulating property in the cabinet that arouses easily ages, insulating nature performance degradation scheduling problem, will lead to equipment short circuit, discharges, finally leads to the emergence of conflagration, serious accident such as explosion even. If no reliable fire extinguishing measures are available, huge economic losses are caused;
the closest technology in the prior patent to the invention is named as sodium chloride dry powder extinguishing agent and a manufacturing method thereof (the application number is CN 95100456.5); the patent discloses a sodium chloride dry powder extinguishing agent, which contains sodium chloride, calcium carbonate powder, mica powder, white carbon black, activated clay, sodium silicate and silicone oil, and the manufacturing method comprises the steps of mixing the sodium chloride, the calcium carbonate powder, the mica powder and the white carbon black, heating to 45-55 ℃, adding the activated clay and the sodium silicate, stirring uniformly, adding a silicone oil water emulsion, starting air draft dehydration after the temperature is raised to 55-65 ℃, and discharging when the temperature is raised to 70-80 ℃; the patent adopts salt as a fire extinguishing agent, has corrosion effect on a power distribution cabinet and terminals, is incomplete and needs to be solved;
the prior patent also has application number CN201721396016.4, which is named as an automatic fire extinguishing system for kitchens, and comprises a trigger mechanism, wherein the trigger mechanism is electrically connected with a controller so as to output a fire extinguishing starting signal to the controller when a fire disaster happens; the first electromagnetic valve is arranged on the kitchen gas pipeline and is in electrical signal connection with the controller so as to close the gas pipeline when the controller receives a fire extinguishing starting signal; also comprises a fire extinguishing mechanism, a cooling mechanism and an atomizing spray head. The patent adopts water to extinguish fire, which is not suitable for a power distribution cabinet; needs to be solved.
These disadvantages need to be overcome, and there is a need for a convenient, fast, safe, reliable, clean fire extinguishing apparatus.
Disclosure of Invention
The invention aims to solve the technical problem of providing a gas fire extinguishing device of a power distribution cabinet, which can detect each terminal in the power distribution cabinet and can quickly extinguish fire if a fire disaster happens.
In order to solve the problems, the invention adopts the following technical proposal,
a gas fire extinguishing device of a power distribution cabinet comprises a fire extinguishing agent storage device arranged outside the power distribution cabinet, a fire extinguishing agent spraying device arranged in the power distribution cabinet, a detection device and a control device; the fire extinguishing agent storage device is communicated with the fire extinguishing agent spraying device through a pipeline; the control device is respectively in signal connection with the fire extinguishing agent storage device and the detection device.
Further, the fire extinguishing agent storage device is a gas cylinder filled with high-pressure carbon dioxide; the gas cylinder is provided with a gas outlet.
Further, the gas outlet is provided with a pressure sensor and an electromagnetic valve.
Furthermore, the fire extinguishing agent spraying device comprises a spray head arranged at the bottom in the power distribution cabinet; the electromagnetic valve is communicated with the spray head through a pipeline.
And an airflow one-way valve is arranged on a pipeline between the electromagnetic valve and the spray head.
Furthermore, the airflow one-way valve comprises a valve body, a one-way valve core in sliding connection with the valve body, a sealing cover detachably connected with the valve body and a spring arranged between the sealing cover and the valve core;
furthermore, a stepped hole is formed in the valve body; the end with the large diameter of the stepped hole is a first hole which is connected with the one-way valve core in a sliding way; the end with the small diameter of the stepped hole is a second hole; the valve body is provided with a third hole which is vertically communicated with the stepped hole; the third aperture is in communication with the spray head; the second hole is communicated with the electromagnetic valve;
furthermore, the one-way valve core is provided with a blind hole; a fourth hole vertically communicated with the blind hole is formed in the side wall of the blind hole; one end of the one-way valve core is a conical surface;
further, the conical surface abuts against the second hole; the third bore is in communication with the fourth bore.
Further, the detection device comprises a smoke detector and a temperature detector; the smoke detector is arranged at the top in the power distribution cabinet; the temperature-sensing detector is arranged on the inner side wall of the power distribution cabinet.
Further, the device also comprises an air exhaust device; the exhaust device comprises an exhaust fan communicated with the outside of the power distribution cabinet.
Further, the control device comprises a PLC controller; the PLC is respectively in signal connection with the smoke detector, the temperature detector, the exhaust fan, the electromagnetic valve and the pressure sensor.
Compared with the prior art, the invention has the beneficial effects that:
1. through the arranged one-way valve, the airflow one-way valve comprises a valve body, a one-way valve core in sliding connection with the valve body, a sealing cover detachably connected with the valve body and a spring arranged between the sealing cover and the valve core; the situation that the electromagnetic valve cannot be opened when the electromagnetic valve is required to be opened to influence fire extinguishment due to the fact that dirt enters the electromagnetic valve is avoided;
2. through the arranged fire extinguishing device, when the smoke detector or the temperature-sensitive detector finds a fire, a signal is transmitted to the controller; the controller opens the electromagnetic valve, and the fire extinguishing agent flows through the one-way valve through the electromagnetic valve and enters the spray head to extinguish fire; meanwhile, the controller sends a starting signal to the ventilating fan to quickly discharge oxygen in the control cabinet so as to extinguish fire by carbon dioxide; meanwhile, the controller sends a signal to the alarm, and the alarm sends an alarm to inform nearby personnel to check; the controller sends a signal to the control center through the communication module to prompt the fire;
in a word, this device can carry out conflagration effectively and report an emergency and ask for help or increased vigilance, oxygen discharge when taking place the conflagration in the switch board, and the isolated oxygen of release carbon dioxide gas destroys the condition of burning to the burning of termination combustible substance reaches the purpose of putting out a fire. The released carbon dioxide gas can be dissipated in the air, no residue exists, the performance and the service life of equipment in the cabinet can not be influenced, and the safe and stable operation of the equipment in the power distribution cabinet can be effectively guaranteed.
Drawings
FIG. 1 is a system diagram of the present invention;
FIG. 2 is a schematic structural view of a check valve;
FIG. 3 is a schematic structural view of a valve body;
fig. 4 is a schematic structural view of the check valve core.
The reference numbers in the figures illustrate:
1-valve body, 2-one-way valve core, 3-spring, 4-sealing cover, 10-second hole, 11-first hole, 12-third hole, 20-conical surface, 21-blind hole and 22-fourth hole.
Detailed Description
It should be noted at the outset that the discussion of any embodiment of the present invention is illustrative only and is not intended to suggest that the scope of the present disclosure (including the claims) is limited to these examples; there are many other variations of the different aspects of the invention as described above which are not provided in detail for the sake of brevity. Accordingly, other embodiments are within the scope of the following claims.
In addition, the drawings in the following description are only preferred embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained based on the drawings without inventive efforts. In addition, the present invention is not limited to these embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Furthermore, in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited by the specific embodiments disclosed below.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., is typically an orientation or positional relationship based on a coordinate system shown in the front view of the device itself or the corresponding sub-component, and that the set of coordinate systems will not rotate with it when other directional views are discussed. In addition, in the case of a rod-like or elongated member, the term "front end" and the term "head" have the same meaning, and the term "rear end" and the term "tail end" and the term "end" have the same meaning. Rather, the foregoing directional terms are used merely to facilitate describing the present application and to simplify the description, and they do not indicate or imply that the apparatus or component being referred to must have a particular orientation or be constructed and operated in a particular orientation without having been stated to the contrary or otherwise specified, and therefore should not be considered limiting of the scope of the present application; further, the terms "inner and outer" with respect to orientation refer to the inner and outer relative to the profile of the respective component itself.
Furthermore, spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", etc. are used to define the components, and are only used to facilitate distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, especially, have no special meaning in "main, secondary" or arrangement order, and therefore, should not be construed as limiting the scope of the present application.
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in fig. 1-4:
the embodiment relates to a gas fire extinguishing device of a power distribution cabinet, which comprises a fire extinguishing agent storage device arranged outside the power distribution cabinet, a fire extinguishing agent spraying device arranged in the power distribution cabinet, a detection device and a control device; the fire extinguishing agent storage device is communicated with the fire extinguishing agent spraying device through a pipeline; the control device is respectively in signal connection with the fire extinguishing agent storage device and the detection device.
The fire extinguishing agent storage device is a gas cylinder filled with high-pressure carbon dioxide; the gas cylinder is provided with a gas outlet.
And the air outlet is provided with a pressure sensor and an electromagnetic valve.
The fire extinguishing agent spraying device comprises a spray head arranged at the bottom in the power distribution cabinet; the electromagnetic valve is communicated with the spray head through a pipeline.
And an airflow one-way valve is arranged on a pipeline between the electromagnetic valve and the spray head.
The airflow one-way valve comprises a valve body 1, a one-way valve core 2 in sliding connection with the valve body 1, a sealing cover 4 detachably connected with the valve body 1 and a spring 3 arranged between the sealing cover 4 and the valve core 2;
a stepped hole is formed in the valve body 1; the end with the large diameter of the stepped hole is a first hole 11, and the first hole 11 is connected with the one-way valve core 2 in a sliding manner; the end with the small diameter of the stepped hole is a second hole 10; a third hole 12 vertically communicated with the stepped hole is formed in the valve body 1; the third aperture 12 is in communication with the spray head; the second hole 10 is communicated with the electromagnetic valve through a pipeline;
the one-way valve core 2 is provided with a blind hole 21; a fourth hole 22 which is vertically communicated with the blind hole 21 is arranged on the side wall of the blind hole 21; one end of the one-way valve core 2 is a conical surface 20;
the tapered surface 20 abuts against the second hole 10; the third bore 12 communicates with the fourth bore 22.
When a fire disaster happens and an electromagnetic valve on the carbon dioxide gas bottle is opened, the pressurized carbon dioxide gas enters the second hole 10 along the pipeline; the conical surface of the one-way valve core 2 is jacked up, the one-way valve core 2 overcomes the resistance of the spring 3 and then slides along the first hole 10 to the direction of the sealing cover 4, and pressurized carbon dioxide gas enters the third hole 12 and then is sprayed through the spray head;
the detection device comprises a smoke detector and a temperature-sensitive detector; the smoke detector is arranged at the top in the power distribution cabinet; the temperature-sensitive detector is arranged on the inner side wall of the power distribution cabinet. The fire detector is an image sensor and can photograph a specific position in the power distribution cabinet and transmit the photographed position to the controller, and the controller judges whether a fire disaster occurs or not;
also comprises an air exhaust device; the exhaust device comprises an exhaust fan communicated with the outside of the power distribution cabinet.
The control device comprises a PLC controller; the PLC is respectively in signal connection with the smoke detector, the temperature detector, the exhaust fan, the electromagnetic valve and the pressure sensor.
The system also comprises a background monitoring system (commonly called as a control center) and an alarm, wherein a communication module is arranged in the controller, and the communication module of the controller is in signal connection with the background monitoring system through the mobile internet; the monitoring and duty personnel can know the condition of the power distribution cabinet in time conveniently; the alarm is in signal connection with the controller;
the working principle of the invention is as follows:
the invention is fully automatically controlled by the controller, and signals collected by the controller are synchronously uploaded to the background monitoring system. The pressure sensor monitors the pressure of gas in the carbon dioxide gas cylinder in real time, the pressure is higher than or lower than a certain value, and the controller gives an alarm through the background monitoring system to remind relevant personnel of carrying out inspection processing. According to the characteristics of fire combustion and the improvement of the reliability of the invention, the starting modes are smoke starting, over-temperature starting and fusing starting of a hot melting element of a fire detector.
Starting smoke: when smoke transducer detects there is smog in the switch board, the controller judges for the burning on fire in the switch board, send the conflagration to back platform monitored control system immediately and report an emergency and ask for help or increased vigilance, and when starting exhaust fan exhaust oxygen in the switch board, open the solenoid valve, carbon dioxide in the carbon dioxide gas cylinder is through the quick release of loudspeaker form spout and diffusion of air duct, density because of carbon dioxide is big than the density of oxygen, release and cooperate the exhaust fan can be by lower up rapid accumulation in the switch board from the bottom, can drive better and reach isolated oxygen, reach the purpose of putting out a fire.
And (3) overtemperature starting: when temperature sensor detects that the temperature in the switch board reaches certain numerical value, the burning on fire has been judged for in the switch board to the controller, send the conflagration to back platform monitored control system immediately and report an emergency and ask for help or increased vigilance, and when starting oxygen in the air discharge fan discharge switch board, open the solenoid valve, carbon dioxide gas in the carbon dioxide gas cylinder is released and is diffused by loudspeaker form spout fast through the air duct, density because of carbon dioxide gas is big than the density of oxygen, release and cooperate the air discharge fan can be by lower up piling up rapidly in the switch board from the bottom, can drive better and reach isolated oxygen, reach the purpose of putting out a fire. .
Example 2
This embodiment has basically the same structure as embodiment 1,
the difference lies in that the carbon dioxide gas cylinder is provided with a pressure sensor; the pressure sensor is in signal connection with the controller, the pressure threshold of the carbon dioxide is arranged on the controller, when the measured pressure signal is lower than the threshold, the controller sends a signal to the control center to remind a person to check, and the qualified gas cylinder is replaced or filled with the carbon dioxide.
And (3) starting the fusing of the hot melting element of the fire detector: when fire detector's hot melt component is heated the fusing, the internal contact is closed, the controller judges for the burning of having caught fire in the switch board, send the conflagration to back platform monitored control system immediately and report an emergency and ask for help or increased vigilance, and when starting oxygen in the air discharge fan discharge switch board, open the solenoid valve, carbon dioxide gas in the carbon dioxide gas cylinder is released and is diffused by loudspeaker form spout fast through the air duct, density because of carbon dioxide gas is big than the density of oxygen, release and cooperate the air discharge fan can be by lower up piling up rapidly in the switch board from the bottom, can drive better and reach isolated oxygen, reach the purpose of putting out a fire.
The working process of this embodiment is basically the same as that of embodiment 1, and will not be described in detail.
Example 3
This embodiment has basically the same structure as embodiment 1,
the difference lies in that the temperature sensor is started by fusing the thermal melting element: when temperature sensor's hot melt component is heated and fuses, the internal contact is closed, the controller judges for the burning on fire in the switch board, send the conflagration to back platform monitored control system immediately and report an emergency and ask for help or increased vigilance, and when starting the scavenger fan and discharging the interior oxygen of switch board, open the solenoid valve, carbon dioxide gas in the carbon dioxide gas cylinder is managed the quick release of shower nozzle and is diffused through the route, because of carbon dioxide gas's density is big than the density of oxygen, release and cooperate the air discharge fan can be by lower up rapid pile up in the switch board from the bottom, can drive and reach isolated oxygen better, reach the purpose of putting out a fire
The working mode and principle of this embodiment are substantially the same as those of embodiment 1, and are not described in detail for brevity.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
At present, the technical scheme of the application adopts the best implementation mode of the embodiment 1, and pilot test is carried out, namely small-scale experiment of products before large-scale mass production; after the pilot test is finished, the investigation for the use of the user is carried out in a small range, and the investigation result shows that the satisfaction degree of the user is higher; now, the preparation of products for formal production and industrialization are started; the above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; those skilled in the art can appreciate that the present invention is not limited to the specific embodiments disclosed herein; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (9)
1. The utility model provides a gas extinguishing device of switch board which characterized in that: the fire extinguishing agent spraying device is arranged in the power distribution cabinet; the fire extinguishing agent storage device is communicated with the fire extinguishing agent spraying device through a pipeline; the control device is respectively in signal connection with the fire extinguishing agent storage device and the detection device.
2. The gas fire extinguishing device of a distribution cabinet according to claim 1, characterized in that: the fire extinguishing agent storage device is a gas cylinder filled with high-pressure carbon dioxide; the gas cylinder is provided with a gas outlet.
3. The gas fire extinguishing device of a distribution cabinet according to claim 2, characterized in that: and the air outlet is provided with a pressure sensor and an electromagnetic valve.
4. The gas fire extinguishing device of a distribution cabinet according to claim 3, characterized in that: the fire extinguishing agent spraying device comprises a spray head arranged at the bottom in the power distribution cabinet; the electromagnetic valve is communicated with the spray head through a pipeline.
5. The gas fire extinguishing device of a distribution cabinet according to claim 4, characterized in that: and an airflow one-way valve is arranged on a pipeline between the electromagnetic valve and the spray head.
6. The gas fire extinguishing device of a distribution cabinet according to claim 1, characterized in that: the air flow one-way valve comprises a valve body (1), a one-way valve core (2) in sliding connection with the valve body (1), a sealing cover (4) detachably connected with the valve body (1) and a spring (3) arranged between the sealing cover (4) and the valve core (2);
a stepped hole is formed in the valve body (1); one end of the stepped hole with a large diameter is a first hole (11), and the first hole (11) is connected with the one-way valve core (2) in a sliding manner; the end with the small diameter of the stepped hole is a second hole (10); a third hole (12) vertically communicated with the stepped hole is formed in the valve body (1); the third orifice (12) being in communication with the spray head; the second hole (10) is communicated with the electromagnetic valve;
the one-way valve core (2) is provided with a blind hole (21); a fourth hole (22) which is vertically communicated with the blind hole (21) is arranged on the side wall of the blind hole (21); one end of the one-way valve core (2) is a conical surface (20);
the conical surface (20) abuts against the second hole (10); the third bore (12) communicates with the fourth bore (22).
7. The gas fire extinguishing device of a distribution cabinet according to claim 1, characterized in that: the detection device comprises a smoke detector and a temperature-sensitive detector; the smoke detector is arranged at the top in the power distribution cabinet; the temperature-sensing detector is arranged on the inner side wall of the power distribution cabinet.
8. The gas fire extinguishing device of a distribution cabinet according to claim 1, characterized in that: also comprises an air exhaust device; the exhaust device comprises an exhaust fan communicated with the outside of the power distribution cabinet.
9. A gas extinguishing device for electric distribution cabinets according to any of the claims from 1 to 8, characterized in that: the control device comprises a PLC controller; the PLC is respectively in signal connection with the smoke detector, the temperature detector, the exhaust fan, the electromagnetic valve and the pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210624739.4A CN115054848A (en) | 2022-06-02 | 2022-06-02 | Gas fire extinguishing device of power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210624739.4A CN115054848A (en) | 2022-06-02 | 2022-06-02 | Gas fire extinguishing device of power distribution cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN115054848A true CN115054848A (en) | 2022-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210624739.4A Pending CN115054848A (en) | 2022-06-02 | 2022-06-02 | Gas fire extinguishing device of power distribution cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117117655A (en) * | 2023-08-25 | 2023-11-24 | 江苏恩斯特系统设备有限公司 | Intelligent low-voltage power distribution cabinet |
-
2022
- 2022-06-02 CN CN202210624739.4A patent/CN115054848A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117117655A (en) * | 2023-08-25 | 2023-11-24 | 江苏恩斯特系统设备有限公司 | Intelligent low-voltage power distribution cabinet |
| CN117117655B (en) * | 2023-08-25 | 2024-01-23 | 江苏恩斯特系统设备有限公司 | Intelligent low-voltage power distribution cabinet |
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