Temperature-sensing and self-starting water spray fire extinguishing device for engine compartment

Abstract

The invention discloses a temperature-sensing and self-starting water spray fire extinguishing device for an engine compartment. The device comprises a vehicle body and a fire extinguishing component,wherein the engine compartment and a trunk are arranged at a front end and a rear end of the vehicle body, the fire extinguishing component comprises a piston type fire extinguishing agent storage cylinder and a driving gas cylinder; a container valve is arranged at the head of the piston type fire extinguishing agent storage cylinder, a gas outlet of the container valve is connected with a fireextinguishing agent conveying pipe, and the fire extinguishing agent conveying pipe extends into the engine compartment along with the chassis of the vehicle body; a control valve with a lock is arranged at the head of the driving gas cylinder, and the container valve and the control valve with the lock are both connected with a fire detection pipe, wherein the fire detection pipe extends into theengine compartment, a fire detection pipe puncture device is arranged on the pipe body, and the fire detection pipe puncture device is connected with a manual controller. By adopting the fire detection tube detection technology, the automatic state is free from power supply, the automation degree is high, the fire extinguishing is in time, the fire extinguishing work is started in automatic and manual modes, and the fire extinguishing is safe and reliable.

Description

Technical field [0001] The invention mainly relates to the technical field of automobile safety equipment, in particular to a temperature-sensing self-starting water spray fire extinguishing device in an engine compartment. Background technique [0002] As a modern means of transportation, cars bring convenience to people’s lives and work. However, as the service life of vehicles continues to increase, more and more problems are exposed by vehicles due to the aging of electrical wiring in the engine compartment. Problems such as oil leakage and its own design can easily cause vehicle fires and even car crashes when the cabin temperature is too high, especially in summer. Therefore, it is particularly important to prevent automobile spontaneous combustion and detection of automobile fire in the early stage of automobile combustion and to extinguish it in time. Because the engine compartment is relatively closed, it is difficult for the fire extinguishing agent to reach the engine...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing automatic fire extinguishing devices in the engine room need electricity, a large number of detectors are arranged, manual start or direct manual operation are used to put out the fire, etc.; and the failure of automatic fire extinguishing devices; while manual fire extinguishing will generally miss the initial stage of fire occurrence, and thus miss the best time for fire extinguishing; and manual fire extinguishing is due to people's psychological quality, proficiency in the use of fire extinguishers and fire hazards. Influenced by factors such as the judgment of the stage, it is difficult and dangerous to extinguish the fire

As far as the current stage is concerned, the automatic fire extinguishing device for the protection of the engine compartment is more advantageous because there are mainly three automatic fire extinguishing devices, namely the bottle group type fine water mist device, the temperature-sensitive self-starting fire extinguishing device and the hanging dry powder fire extinguishing device. As far as the bottle group type water mist fire extinguishing device is concerned, the operation of the device needs electric support, and it relies on detectors or manual activation, and the steel cylinder occupies a large area.

For the temperature-sensing self-starting fire extinguishing device (fire detection tube), the annual leakage rate is high, and it is difficult to replenish the gas. When the fire is extinguished, the gas expands violently, which is easy to cause great damage to the engine compartment. The extinguishing agent is greenhouse gas, etc.

For the suspended dry powder fire extinguishing device, it needs to be arranged directly inside the engine compartment, which takes up a lot of space in the engine compartment. Since the engine compartment is in a state of long-term vibration, the agent in the container is easy to harden and damp and cannot be used in this environment, and dry powder fire extinguishing Difficult to clean after spraying

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