Automatic fire extinguishment device of vehicle engine cabin

Abstract

The invention discloses an automatic fire extinguishment device of a vehicle engine cabin. The device is provided with a fire extinguisher container arranged in an engine cabin, wherein an electronic valve is arranged at an outlet of the fire extinguisher container and is communicated with a plurality of multi-nozzle hoses in the engine cabin through pipelines; a control circuit board is arranged in the engine cabin, is connected with the electronic valve through a control circuit and is also connected with a smoke sensor; a cab alarm controller is arranged in a cab; an alarm lamp, a loudspeaker and a fire extinguishment control button are arranged on the cab alarm controller. According to the device, the spontaneous combustion phenomenon can be discovered in first time after the spontaneous combustion of the vehicle engine cabin occurs, judgment caution information is obtained, and the vehicle-mounted fire extinguishment device is started, so that the spontaneous combustion probability of a vehicle can be reduced, the property loss caused by the spontaneous combustion of the vehicle can be reduced, and the casualty accidents of drivers and passengers caused by untimely discovery of the spontaneous combustion of the vehicle can be reduced.

Description

[0001] technical field [0002] The invention relates to a self-contained fire extinguishing device for a vehicle, in particular to an automatic fire extinguishing device for a vehicle engine compartment. Background technique [0003] In 2013, the number of motor vehicles nationwide exceeded 250 million, including 137 million cars. Taking Beijing as an example, the number of motor vehicles in 2013 was 5.2 million. At the end of 2012, the number of cars in the city was 4.957 million, an increase of 225,000; of which, private cars were 4.075 million There were 2.982 million sedans among private cars, an increase of 178,000 and 120,000 respectively. [0004] According to the statistics of vehicle disaster accidents in 2013, the proportion of vehicle spontaneous combustion accidents is more than 98%. After the investigation and statistical analysis of fire causes, it is found that the main reason is that the fire in the fuel system and circuit system caused the vehicle to sponta...

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Problems solved by technology

[0004] According to the statistics of vehicle disaster accidents in 2013, the proportion of vehicle spontaneous combustion accidents is more than 98%. After the investigation and statistical analysis of fire causes, it is found that the main reason is that the fire in the fuel system and circuit system caused the vehicle to spontaneously ignite. Engine, gearbox, fuel system, circuit system, once a certain system has oil leakage, short circuit, high temperature, etc., it is very easy for the vehicle to spontaneously ignite, resulting in damage to the vehicle. Passenger casualties, the above vehicle spontaneous combustion accidents all occurred in the engine compartment of the vehicle

[0005] After the spontaneous combustion of the vehicle, due to the small capacity and weak fire extinguishing ability of the vehicle, most of the fire extinguishers are placed under the driver's seat or in the trunk. In the smoldering state, the combustion is not violent, only thick smoke comes out. Once the engine compartment cover is opened, the fire will burn violently instantly, resulting in deflagration, which can easily cause damage to the vehicle, and even endanger the life of the driver.

[0006] Therefore, in order to solve the problem that the existing motor vehicles are difficult to detect and timely extinguish the fire in the engine compartment, it is necessary to design an automatic fire extinguishing device for the engine compartment of the vehicle, which can detect the spontaneous combustion phenomenon immediately after the spontaneous combustion in the engine compartment of the vehicle, and obtain judgment warnings information, activate the on-board fire extinguishing device, reduce the probability of vehicle spontaneous combustion, reduce the property loss caused by vehicle spontaneous combustion, and reduce the casualties of drivers and passengers caused by vehicle spontaneous combustion that is not detected in time

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