阅读说明：本技术 一种充电位车辆火灾抑制方法及抑制系统 (Charging station vehicle fire suppression method and suppression system ) 是由 陈奂羽 于 2021-05-25 设计创作，主要内容包括：本发明提供一种充电位车辆火灾抑制方法及抑制系统,该系统包括火灾探测装置和充电位自动灭火装置,所述火灾探测装置包括探测控制器,所述充电位自动灭火装置包括依次连接的灭火剂储存箱、离心水泵、输水管路、喷头,所述喷头设置在充电位的至少两侧,灭火剂储存箱内储存水基灭火剂,所述输水管路通过三通阀连接有市水管路,所述探测控制器与所述离心水泵连接,所述火灾探测装置还包括烟雾传感器、温度传感器和气体传感器,所述烟雾传感器、温度传感器和气体传感器均与所述探测控制器连接。充电位自动灭火装置启动后会迅速喷放大量水基灭火剂,灭火剂可在可燃物表面形成并扩展一层薄水膜,使可燃物与空气隔离。(The invention provides a charging station vehicle fire suppression method and a charging station vehicle fire suppression system, wherein the system comprises a fire detection device and a charging station automatic fire extinguishing device, the fire detection device comprises a detection controller, the charging station automatic fire extinguishing device comprises a fire extinguishing agent storage tank, a centrifugal water pump, a water conveying pipeline and spray heads which are sequentially connected, the spray heads are arranged on at least two sides of a charging station, a water-based fire extinguishing agent is stored in the fire extinguishing agent storage tank, the water conveying pipeline is connected with a city water pipeline through a three-way valve, the detection controller is connected with the centrifugal water pump, the fire detection device further comprises a smoke sensor, a temperature sensor and a gas sensor, and the smoke sensor, the temperature sensor and the gas sensor are all connected with the detection controller. After the charging station automatic fire extinguishing device is started, a large amount of water-based fire extinguishing agent can be rapidly sprayed, and the fire extinguishing agent can form and expand a layer of thin water film on the surface of combustible to isolate the combustible from air.)

1. A fire suppression method for a charging station vehicle, comprising:

step 1, detecting whether a vehicle stops at a charging position, if so, entering a step 2, and if not, stopping detection;

step 2, detecting whether a fire disaster exists in the space corresponding to the charging position, if so, entering step 3, otherwise, returning to step 1;

and 3, spraying water-based fire extinguishing agent to the charging position with the fire and the charging position adjacent to the charging position to isolate the flame, wherein the time for spraying the water-based fire extinguishing agent is 30s-2min, and then spraying water to the charging position with the fire and the charging position adjacent to the charging position to cool.

2. The charge level vehicle fire suppression method of claim 1, further comprising step 4, step 4 comprising: the audible and visual alarm gives an alarm, and the communication device uploads a fire alarm signal to an alarm center; and if the fire disaster in the space corresponding to the charging position is detected in the step 2, entering a step 4.

3. The charge level vehicle fire suppression method according to claim 1, further comprising step 5, the step 5 comprising: starting a hexafluoropropane fire extinguishing device inside the charging pile; and if the fire disaster exists in the space corresponding to the charging position in the step 2, entering a step 5.

4. The fire suppression method for the charging station vehicle according to claim 3, wherein in the step 2, the method for detecting whether a fire exists in the space corresponding to the charging pile comprises the following steps: carry out temperature detection, smog detection and gas detection to filling electric pile corresponding space, gas detection includes carbon monoxide and hydrocarbon and surveys, and when arbitrary two judge unusually in temperature detection, smog detection and the gas detection three, judge that the conflagration takes place.

5. The fire suppression method for a charge level vehicle according to claim 1, wherein the method of detecting whether a fire exists in the space corresponding to the charge level in step 2 comprises: fill electric pile temperature through far infrared non-contact temperature sensor detection, carry out charging current and voltage monitoring to filling electric pile through current transformer, when far infrared non-contact temperature sensor, current transformer all sent alarm signal, judge that the conflagration takes place.

6. The utility model provides a charge position vehicle fire suppression system, a serial communication port, include fire detection device and the position automatic fire extinguishing device that charges, fire detection device is including detecting the controller, charge position automatic fire extinguishing device is including the fire extinguishing agent bin, centrifugal pump, hydraulic pipeline, the shower nozzle that connect gradually, the shower nozzle sets up in the at least both sides of charging the position, stores water base fire extinguishing agent in the fire extinguishing agent bin, hydraulic pipeline has the city water pipeline through three-way valve connection, detect the controller with centrifugal pump connects, fire detection device still includes smoke transducer, temperature sensor and gas sensor, smoke transducer, temperature sensor and gas sensor all with detection controller connects.

7. The charge-location vehicle fire suppression system of claim 6, further comprising a hexafluoropropane fire suppression device disposed within the charging pole, the hexafluoropropane fire suppression device connected to the detection controller.

8. The charge-location vehicle fire suppression system of claim 6, further comprising a far infrared non-contact temperature sensor coupled to the detection controller.

9. The charging station vehicle fire suppression system of claim 6, further comprising a current transformer disposed within the charging post, the current transformer being configured to monitor charging current and voltage of the charging post, the current transformer being connected to the detection controller.

10. The charge level vehicle fire suppression system according to claim 8 or 9, further comprising an audible and visual alarm and a communication device, both connected to the detection controller, the communication device being configured to communicate with an alarm center.

Technical Field

The invention belongs to the technical field of fire fighting, and particularly relates to a fire suppression method and a fire suppression system for a charging station vehicle.

Background

With the social requirements on environmental protection and energy conservation becoming higher and higher, new energy automobiles are more and more paid attention by governments and automobile manufacturers. However, since the new energy automobile uses the battery and the motor as the driving power source, some potential safety hazards exist in the actual use process all the time. Especially, in recent years, explosive growth needs exist in the fields of new energy vehicles and energy storage, and the news of the spontaneous combustion of the electric vehicles is frequently reported, mainly because the liquid electrolyte of the ternary lithium battery is flammable and explosive, and is easy to trigger thermal runaway in the long-term use process. From the view of working principle, the power battery is basically the same as a consumer battery, but the charge quantity of the power battery is far larger than that of the consumer battery, thermal runaway is easily induced under the factors of overcharge, overheating, internal short circuit, external short circuit, mechanical trigger and the like, and when the thermal runaway occurs in the power battery, the temperature of the battery can be rapidly increased to 400-1000 ℃, so that accidents such as ignition, explosion and the like can be further caused.

At present, parking spaces of new energy automobile factories are divided into three types, namely underground parking spaces, overground parking spaces and three-dimensional parking spaces. Wherein the ground parking stall and the three-dimensional parking stall do not do corresponding fire control design usually, and the underground parking stall is equipped with the fire extinguishing system that sprays, but conventional spraying fire extinguishing system carries out the large tracts of land when on fire usually and sprays, can't put out a fire the vehicle and carry out the pertinence and save life, consequently the pertinence is low, the efficiency of putting out a fire is low, in case there is the vehicle to be on fire and can't in time keep apart, put out a fire, very easily ignite peripheral vehicle simultaneously, bring huge personal and loss of property for producer and consumer.

Disclosure of Invention

The present invention aims to solve the above technical problems and provides a fire suppression method and a fire suppression system for a charging station vehicle.

In order to achieve the purpose, the invention adopts the following technical scheme:

a charge level vehicle fire suppression method, comprising: step 1, detecting whether a vehicle stops at a charging position, if so, entering a step 2, and if not, stopping detection; step 2, detecting whether a fire disaster exists in the space corresponding to the charging position, if so, entering step 3, otherwise, returning to step 1; and 3, spraying water-based fire extinguishing agent to the charging position with the fire and the charging position adjacent to the charging position to isolate the flame, wherein the time for spraying the water-based fire extinguishing agent is 30s-2min, and then spraying water to the charging position with the fire and the charging position adjacent to the charging position to cool.

Preferably, the charge-level vehicle fire suppression method further includes a step 4, and the step 4 includes: the audible and visual alarm gives an alarm, and the communication device uploads a fire alarm signal to an alarm center; and if the fire disaster in the space corresponding to the charging position is detected in the step 2, entering a step 4.

Preferably, the charge-level vehicle fire suppression method further includes step 5, and step 5 includes: starting a hexafluoropropane fire extinguishing device inside the charging pile; and if the fire disaster exists in the space corresponding to the charging position in the step 2, entering a step 5.

Preferably, in step 2, the method for detecting whether a fire is present in the space corresponding to the charge level includes: carry out temperature detection, smog detection and gas detection to filling electric pile corresponding space, gas detection includes carbon monoxide and hydrocarbon and surveys, and when arbitrary two judge unusually in temperature detection, smog detection and the gas detection three, judge that the conflagration takes place.

Preferably, in step 2, the method for detecting whether a fire is present in the space corresponding to the charge level includes: the charging potential temperature is detected through the far infrared non-contact temperature sensor, the charging current and voltage monitoring is carried out on the charging pile through the current transformer, and when the far infrared non-contact temperature sensor and the current transformer send out alarm signals, the fire disaster is judged to happen.

The invention also provides a charge level vehicle fire suppression system, which comprises a fire detection device and a charge level automatic fire extinguishing device, wherein the fire detection device comprises a detection controller, the charge level automatic fire extinguishing device comprises a fire extinguishing agent storage tank, a centrifugal water pump, a water conveying pipeline and spray heads which are sequentially connected, the spray heads are arranged on at least two sides of a charge level, a water-based fire extinguishing agent is stored in the fire extinguishing agent storage tank, the water conveying pipeline is connected with a city water pipeline through a three-way valve, the detection controller is connected with the centrifugal water pump, the fire detection device further comprises a smoke sensor, a temperature sensor and a gas sensor, and the smoke sensor, the temperature sensor and the gas sensor are all connected with the detection controller.

Preferably, the potential charging vehicle fire suppression system further comprises a hexafluoropropane fire extinguishing device arranged in the charging pile, and the hexafluoropropane fire extinguishing device is connected with the detection controller.

Preferably, the charging-level vehicle fire suppression system further comprises a far infrared non-contact temperature sensor, and the far infrared non-contact temperature sensor is connected with the detection controller.

Preferably, the potential charging vehicle fire suppression system further comprises a current transformer arranged in the charging pile, the current transformer is used for monitoring charging current and voltage of the charging pile, and the current transformer is connected with the detection controller.

Preferably, the fire suppression system for the electrified potential vehicle further comprises an audible and visual alarm and a communication device, wherein the audible and visual alarm and the communication device are both connected with the detection controller, and the communication device is used for realizing communication with an alarm center.

After the technical scheme is adopted, the invention has the following advantages:

after the charging station automatic fire extinguishing device of the charging station vehicle fire suppression system is started, a large amount of medicament, namely water-based fire extinguishing agent, can be sprayed and discharged quickly, acts on each corner where a fire occurs in a distributed full-coverage mode, quickly extinguishes the fire, and belongs to a physical fire extinguishing mechanism. The agent can form and expand a layer of thin water film on the surface of the combustible, so that the combustible is isolated from the air, and the fire extinguishment is realized. The water mist is sprayed out through the atomizing nozzle, the fire field is distributed and the heat is evaporated, the temperature of the fire field is rapidly reduced, and meanwhile, the concentration of oxygen in the air of a combustion area is reduced, and the afterburning is prevented. The after-burning resistance is good. The fire extinguishing agent mainly comprises a hydrocarbon surfactant, a fluorocarbon surfactant, a fire retardant and an auxiliary agent. The fire extinguishing agent has a penetrating effect on the fire of the A-type solid substances, and the part sprayed by the agent can also effectively block a fire source and control the spreading speed of the fire; the fire-extinguishing agent has the function of isolating B-type liquid or soluble solid fire, such as gasoline and volatile chemical liquid, and can form a long-term water film on the surface of the agent, so that even if the water film is damaged by external factors, the unique liquidity of the agent can be quickly healed, and the fire can be suffocated. The water-based fire extinguishing agent is not influenced by indoor, outdoor, strong wind and other environments, and can act on the surface of a combustion object to the maximum extent.

Drawings

FIG. 1 is a flow chart of a charge station vehicle fire suppression method of the present invention;

FIG. 2 is a block diagram of a charge station vehicle fire suppression system;

FIG. 3 is a schematic diagram of a connection configuration of a charge station vehicle fire suppression system;

in the figure:

1-a fire detection device; 11-a detection controller; 12-a smoke sensor; 13-a temperature sensor; 14-a gas sensor; 2-automatic fire extinguishing device of charging station; 21-fire extinguishing agent storage tank; 22-centrifugal water pump; 23-a water conveying pipeline; 24-a spray head; 3-hexafluoropropane fire extinguishing means; 4-a current transformer; 5-far infrared non-contact temperature sensor; 6-audible and visual alarm; 7-communication means.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific examples.

As shown in fig. 1, a fire suppression method for a charge station vehicle includes:

step 1, detecting whether a vehicle stops at a charging position, if so, entering a step 2, and if not, stopping detection;

step 2, detecting whether a fire disaster exists in the space corresponding to the charging position, if so, entering step 3, otherwise, returning to step 1;

step 3, spraying water-based fire extinguishing agent to the charging position where the fire occurs and the charging position adjacent to the charging position to isolate the flame, wherein the time for spraying the water-based fire extinguishing agent is 30s-2min, and then spraying water to the charging position where the fire occurs and the charging position adjacent to the charging position to cool;

step 4, the audible and visual alarm gives an alarm, the communication device uploads a fire alarm signal to an alarm center, and if a fire disaster in the space corresponding to the charging station is detected in the step 2, the step 4 is carried out;

and 5, starting a hexafluoropropane fire extinguishing device inside the charging pile, and entering the step 5 if a fire disaster exists in the space corresponding to the charging position detected in the step 2.

In step 2, the method for detecting whether a fire disaster exists in the space corresponding to the charging level comprises the following steps: carry out temperature detection, smog detection and gas detection to filling electric pile corresponding space, gas detection includes carbon monoxide and hydrocarbon and surveys, and when arbitrary two judge unusually in temperature detection, smog detection and the gas detection three, judge that the conflagration takes place.

In step 2, the method for detecting whether a fire disaster exists in the space corresponding to the charging level comprises the following steps: the charging potential temperature is detected through the far infrared non-contact temperature sensor, the charging current and voltage monitoring is carried out on the charging pile through the current transformer, and when the far infrared non-contact temperature sensor and the current transformer send out alarm signals, the fire disaster is judged to happen.

As shown in fig. 2-3, the invention also provides a charge station vehicle fire suppression system, which comprises a fire detection device 1, a charge station automatic fire extinguishing device 2, a hexafluoropropane fire extinguishing device 3, a current transformer 4, a far infrared non-contact temperature sensor 5, an audible and visual alarm 6 and a communication device 7.

The fire detection device 1 comprises a detection controller 11, a smoke sensor 12, a temperature sensor 13 and a gas sensor 14, wherein the smoke sensor 12, the temperature sensor 13 and the gas sensor 14 are all connected with the detection controller 11.

Charge position automatic fire extinguishing device 2 is including the fire extinguishing agent bin 21, centrifugal pump 22, conduit 23, the shower nozzle 24 that connect gradually, shower nozzle 24 sets up in the at least both sides of the position of charging, stores water-based fire extinguishing agent in the fire extinguishing agent bin 21, conduit 23 is connected with the city water pipeline through the three-way valve, detection controller 11 with centrifugal pump 22 is connected.

In this embodiment, the section of the water pipeline 23 connected with the spray head 24 is arranged under the ground (convenient for parking and charging), the section of the water pipeline 23 is erected 15 to 30 degrees in case of fire, and the spray head 24 on the pipe sprays to extinguish the fire.

It will be appreciated that the spray head 24 may also be arranged such that: a plurality of atomizing nozzles are arranged above each parking space, and the flow coefficient is not lower than the spraying speed of 60L/min.

Hexafluoropropane extinguishing device 3 sets up in filling electric pile, hexafluoropropane extinguishing device 3 with detection controller 11 is connected. Every fills electric pile inside and arranges two hexafluoropropane extinguishing device 3, puts out a fire. The mechanism of hexafluoropropane extinguishment is as follows: a) physical inhibition: smothering to extinguish fire by isolating oxygen; b) chemical inhibition: the free radicals produced by the scission of the combustion chain are much smaller than the free radicals of combustion. Fill inside smoke transducer 12 of electric pile, temperature sensor 13 and gas sensor 14 and detect gas concentration such as temperature, smoke and feel and carbon monoxide and can send out the warning when arbitrary factor is higher, if arbitrary two kinds of circumstances simultaneous occurrence, inside hexafluoropropane extinguishing device 3 will start.

The audible and visual alarm 6 and the communication device 7 are both connected with the detection controller 11, and the communication device 7 is used for realizing communication with an alarm center. When the far infrared non-contact temperature sensor 5 detects the temperature of 180 ℃, the audible and visual alarm 6 gives an alarm.

The far infrared non-contact temperature sensor 5 is connected with the detection controller 11. In this embodiment, far infrared non-contact temperature sensor 5 includes (9 ~16 temperature subareas in a parking stall), surveys the parking stall with full coverage, and when arbitrary subregion detected the temperature more than 180 ℃, audible and visual alarm 6 reported to the police.

The current transformer 5 sets up in filling electric pile, current transformer 5 is used for filling electric pile and carries out charging current and voltage monitoring, current transformer 5 with the detection controller 11 is connected. When charging pile voltage and current change (higher than twice of rated voltage and current), the audible and visual alarm 6 can give an alarm.

Fill electric pile parking stall automatic fire extinguishing device 2 outsides and be equipped with promptly and open and stop the switch for start-up extinguishing device.

The fire suppression system can rapidly extinguish A, B, C, E type fires and is widely applicable. Class a-refers to solid matter fires. Class B-refers to liquid or solubilized solid matter fires. Class C-refers to gas fires. Class E-refers to a fire with a fire point.

After the charging station automatic fire extinguishing device is started, a large amount of medicament, namely water-based extinguishing agent, can be rapidly sprayed and discharged to act on each corner where a fire disaster occurs in a distributed full-coverage mode, so that the fire disaster is rapidly extinguished, and the device belongs to a physical fire extinguishing mechanism. The agent can form and expand a layer of thin water film on the surface of the combustible, so that the combustible is isolated from the air, and the fire extinguishment is realized. The water mist is sprayed out through the atomizing nozzle, the fire field is distributed and the heat is evaporated, the temperature of the fire field is rapidly reduced, and meanwhile, the concentration of oxygen in the air of a combustion area is reduced, and the afterburning is prevented. The after-burning resistance is good. The fire extinguishing agent mainly comprises a hydrocarbon surfactant, a fluorocarbon surfactant, a fire retardant and an auxiliary agent. The fire extinguishing agent has a penetrating effect on A-class fire, and the part sprayed by the agent can effectively block a fire source and control the spreading speed of the fire; the agent has the effect of isolating B-type fire, such as gasoline and volatile chemical liquid, and can form a long-time water film on the surface of the agent, so that even if the water film is damaged by external factors, the unique fluidity of the agent can be quickly healed, and the flame is suffocated. The water-based fire extinguishing agent is not influenced by indoor, outdoor, strong wind and other environments, and can act on the surface of a combustion object to the maximum extent.

Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.