SUMMERY OF THE UTILITY MODEL
The utility model provides an electric vehicle charging station conflagration automatic alarm fire extinguishing systems reaches the purpose of putting out a fire fast to the electric automobile of charging station through spraying a large amount of water smoke.
According to one aspect of the disclosure, an automatic fire alarm and fire extinguishing system for an electric vehicle charging station comprises a flame detection monitoring system, a spraying fire extinguishing system and a control management platform, wherein the flame detection monitoring system and the spraying fire extinguishing system are respectively connected with the control management platform, when the flame detection monitoring system monitors a fire, signals are converted and transmitted to the control management platform, the control management platform sends instructions to the spraying fire extinguishing system to extinguish the fire, the spraying fire extinguishing system comprises a water tank, a water pipe, a high-pressure water pump and a water spraying upright post, the water inlet end of the water pipe is connected with the water tank, the water spraying upright posts are distributed on one side of a charging pile and are all connected with the water pipe, the high-pressure water pump is arranged on the water pipe, the water spraying upright post is provided with a plurality of nozzles from top to bottom, and the nozzles are used for spraying fine water mist, the flow rate of the nozzle is 6-10L/min, the angle of the spraying umbrella is 40-90 degrees, and the penetration distance is 5-9 meters.
According to at least one embodiment of the present disclosure, the flame detection monitoring system includes a plurality of flame detectors and a data acquisition terminal DTU, the flame detectors are distributed on the parking space ceiling to realize real-time monitoring of flame, and the flame detectors are connected with the control management platform through the data acquisition terminal.
According to at least one embodiment of the present disclosure, the fire extinguishing system further includes an electrical fire monitoring system, the electrical fire monitoring system includes an electrical fire monitoring detector for monitoring current and voltage, a residual current transformer and a temperature sensor, and the electrical fire monitoring detector, the residual current transformer and the temperature sensor are respectively connected with the control management platform.
According to at least one embodiment of this disclosure, fire extinguishing system still includes thermal imaging monitored control system, thermal imaging monitored control system includes infrared thermal imaging camera, installs one respectively in parking stall ceiling both sides infrared thermal imaging camera, infrared thermal imaging camera with the control management platform is connected.
According to at least one embodiment of this disclosure, the fire extinguishing systems sprays still includes the broken puncture spray gun of tearing open of thin water smoke of hand-held type, the broken puncture spray gun of tearing open of thin water smoke of hand-held type is used for pricking window glass, carries out the spraying to put out a fire in the car.
According to at least one embodiment of the present disclosure, the plurality of water spray pillars are respectively disposed on an extension line of the vehicle line.
According to at least one embodiment of the present disclosure, the water spray pillar is provided with 4 nozzles from top to bottom.
According to at least one embodiment of the present disclosure, the particle diameter Dv0.99 of the water mist sprayed by the nozzle is 200-400 microns.
According to at least one embodiment of the present disclosure, the control management platform includes a server, an operation host, and a user terminal, where the operation host and the user terminal are connected to the server, respectively.
According to at least one embodiment of the present disclosure, the water tank is provided with a water level controller to automatically replenish water when the water storage amount of the water tank is insufficient.
After adopting above-mentioned technical scheme, this disclosure has following beneficial effect:
according to the fire prevention device, a large amount of water mist is sprayed, the water mist can achieve the comprehensive effects of rapid cooling, water vapor oxygen blocking to control open fire and shielding heat radiation under the triple effects of cooling, suffocation and heat radiation isolation, and fire spreading is prevented. The fire extinguishing system adopting the water mist spraying has the dual functions and advantages of water spraying and gas fire extinguishing, is superior to the cooling function of the water spraying system, has the continuous suffocation function which is not possessed by the gas fire extinguishing system, and has the comprehensive fire extinguishing effect which is greatly superior to other fire extinguishing forms.
The fire fighting emergency protection device can put open fire out or delay the expansion of fire, prevent the fire from spreading to other vehicles or facilities, control the damage of fire accidents at the minimum level, and strive for precious time for fire rescue vehicles.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 and 2, the present disclosure discloses an automatic fire alarm and fire extinguishing system for an electric vehicle charging station, which includes a flame detection monitoring system 1, a spraying fire extinguishing system 2, a thermal imaging monitoring system 3, an electrical fire monitoring system (not shown) and a control management platform (not shown), wherein the flame detection monitoring system 1 and the spraying fire extinguishing system 2 are respectively connected to the control management platform, when the flame detection monitoring system 1 monitors a fire, the flame detection monitoring system converts a signal and transmits the signal to the control management platform, the control management platform sends an instruction to the spraying fire extinguishing system 2 to extinguish the fire, the spraying fire extinguishing system 2 includes a water tank 21, a water pipe 22, a high pressure water pump 23 and water spraying columns 24, the water inlet end of the water pipe 22 is connected to the water tank 21, the water spraying columns 24 are distributed on one side of a charging pile 100 and are all connected to the water pipe 22, the high-pressure water pump 23 is arranged on the water pipe 22, the water spraying upright post 24 is provided with 4 nozzles from top to bottom, the nozzles are used for spraying water mist, the flow rate of the nozzles is 6-10L/min, the spraying umbrella angle is 40-90 degrees, and the penetration distance is 5-9 meters. The sprayed water mist covers the whole vehicle: the water mist on the two sides and the bottom of the vehicle can participate in heat convection circulation during combustion to rapidly prevent combustion, and the other covered water mist mainly controls the external heat radiation of the ignited vehicle to prevent open fire from spreading.
According to at least one embodiment of the present disclosure, the flame detection monitoring system 1 includes a flame detector 11 and a data acquisition terminal DTU, the flame detectors are distributed on the parking space ceiling 200 to realize real-time monitoring of flame, and the flame detectors are connected to the control management platform through the data acquisition terminal.
Flame detector 11 for each fills electric pile fire alarm information of perception, when reaching conflagration ray radiation threshold value, sends alarm signal, discovers the conflagration hidden danger in advance, increases conflagration prevention and control management level, reduces the loss that the conflagration brought, adopts wired or wireless network to upload to control management platform in real time, realizes the long-range centralized monitoring management to each fire alarm and the running state information that fills electric pile, ensures each fire control safety who fills electric pile. The DTU realizes the acquisition of real-time state data of the sensing unit and provides a forwarding and uploading channel of information acquired by the front end.
According to at least one embodiment of the present disclosure, the thermal imaging monitoring system 3 includes an infrared thermal imaging camera 31, one infrared thermal imaging camera is installed on each of two sides of the parking space ceiling 200, and the infrared thermal imaging camera is connected to the control management platform.
The infrared thermal imaging camera 31 is used for assisting in monitoring the temperature of each charging pile, and gives an alarm at the first time when the temperature of flame on site exceeds a fire early warning value. And meanwhile, the flame detection monitoring system is combined to realize double early warning of each charging pile, and when two devices, namely an infrared thermal imaging camera and a flame detector, report fire alarm information simultaneously, the system can be directly linked with a spraying fire extinguishing system to realize fire extinguishing action, so that the fire loss is reduced to the lowest.
According to at least one embodiment of the present disclosure, the electrical fire monitoring system includes an electrical fire monitoring detector for monitoring current and voltage, a residual current transformer, and a temperature sensor, and the electrical fire monitoring detector, the residual current transformer, and the temperature sensor are respectively connected to the control management platform.
The electric fire monitoring detector is installed on each charging pile power supply system second-level power distribution cabinet, so that the state of an electric circuit is monitored, fire accidents caused by electric circuit faults are prevented, effective management of a charging station is realized, and the fire-fighting daily management level is improved.
According to at least one embodiment of this disclosure, the fire extinguishing systems sprays still includes the broken puncture spray gun of tearing open of thin water smoke of hand-held type, the broken puncture spray gun of tearing open of thin water smoke of hand-held type is used for pricking window glass, carries out the spraying to put out a fire in the car.
The thin water mist forcible entry piercing spray gun with the manual forcible entry function is used for forcible entry of the vehicle window and piercing the battery compartment to extinguish fire. The water mist is quickly evaporated when meeting high temperature, a large amount of heat is taken away, and a large amount of generated water vapor is locally positive-pressure and effectively prevents the supply of oxygen, so that the comprehensive effect (temperature reduction and oxygen blocking) can effectively extinguish the electric automobile on fire. Breaking and dismantling (window breaking, perforation and tearing) important parts of the vehicle body to convey the water mist into a firing space; the fine water mist is broken to be dismantled and punctured the cooperation of spray gun, and the fine water mist is deepened the battery compartment position, directly supports the high temperature region of battery thermal reaction. After the open fire is extinguished, the water mist is continuously sprayed to wet all combustible materials and closed cabins (including a battery compartment, a trunk and a front case) in the vehicle, so that the risk of secondary fire is effectively reduced. The combination of the device has good fire extinguishing effect on the electric automobile in the closed space and can not re-ignite.
According to at least one embodiment of the present disclosure, the present disclosure is further provided with an equipment cabinet 4, wherein a fire alarm host, a data storage device, a network transmission device, and the like are arranged in the equipment cabinet; the installation position of the equipment cabinet is the position of the middle open space of the two charging piles, and a cement platform foundation needs to be poured.
According to at least one embodiment of the present disclosure, the plurality of water spray pillars are respectively disposed on an extension line of a parking space 300.
According to at least one embodiment of the present disclosure, the particle diameter Dv0.99 of the water mist sprayed by the nozzle is 200-400 microns.
According to at least one embodiment of the present disclosure, the control management platform includes a server, an operation host, and a user terminal, where the operation host and the user terminal are connected to the server, respectively.
The server performs centralized configuration management on users, roles, authorities and equipment in the system, and the operation host accesses the server in a B/S (browser/Server) architecture mode, so that configuration, information viewing and alarm handling in various authority ranges can be conveniently completed; the user terminal provides real, effective and real-time alarm, fault and operation information for users at all levels, realizes the organic combination of civil defense and technical defense, and comprehensively improves the scientific and technological means of fire-fighting supervision and management. Different authorized users enter the platform, and can conveniently check various information of the system such as the water level of the water tank, the pressure of the water pipe, the state of the fire-fighting equipment, alarm information, the on-duty condition of the person on duty and the like.
According to at least one embodiment of the present disclosure, the water tank is provided with a water level controller to automatically replenish water when the water storage amount of the water tank is insufficient.
The disclosed system starts under the action of flame or temperature sensor signals; firstly, disconnecting a charging power supply; the high-pressure pump set works to spray water mist to the accident vehicle in a covering mode to inhibit fire spreading and prevent the fire vehicle from spreading to other vehicles; after the personnel put in place, the hand-held type water mist forcible entry puncturing spray gun is adopted to forcible entry the vehicle window, and the battery compartment is punctured to extinguish the fire.
The present disclosure is distinguished from conventional water sprinkler systems if they are understood as two-dimensional fire suppression systems: it covers only one area statically from top to bottom; the water mist system of the present disclosure is then a dynamic three-dimensional fire suppression system: adopts the technical proposal of spraying water mist on the side direction and the ground and covers the vehicle body at the same time. Covering the protected area when not burning to prevent ignition of nearby vehicles; when combustion heat is encountered, the water mist flows along the direction of a hot flow field under the pushing of a temperature gradient and participates in the hot convection circulation, and the heat enables water droplets to evaporate to generate steam: the micro-droplets are evaporated and absorb heat violently under the action of latent heat of vaporization, so that the temperature of a fire scene is reduced, and water vapor simultaneously blocks oxygen and smothers.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.