Fire extinguisher based on airbag-driven normal-pressure liquid fire-extinguishing agent

Abstract

The invention discloses a fire extinguisher based on an airbag-driven normal-pressure liquid fire-extinguishing agent. The fire extinguisher comprises a liquid storage tank (2) and a controller (8), wherein a nozzle (1) is arranged at the top end of the liquid storage tank (2). A piston (4) is arranged in the liquid storage tank (2). The part, above the piston (4), in the liquid storage tank (2) is filled with the fire-extinguishing agent (3). An airbag (5) and a gas generator (6) are integrated in the part, below the piston (4), in the liquid storage tank (2). The gas generator (6) is arranged inside the airbag (5) and connected with the controller (8) arranged outside the liquid storage tank (2) through a control wiring harness (7). The fire extinguisher has the beneficial effects that the structure of a fire extinguishing system is simplified, the total weight of the system is lowered, cost is reduced, the mounting space is reduced, and mounting is convenient.

Description

technical field [0001] The invention relates to a fire extinguishing device in the technical field of fire fighting and fire extinguishing, in particular to a fire extinguisher based on an air bag driving an atmospheric pressure liquid fire extinguishing agent. Background technique [0002] At present, the fire extinguishing device of the atmospheric pressure liquid fire extinguishing agent is generally driven by high pressure gas (such as nitrogen, etc.). The high-pressure gas is stored in the high-pressure gas cylinder. When the fire controller detects the fire and confirms the fire through a certain logic judgment, it opens the solenoid valve on the high-pressure gas cylinder, and the high-pressure gas enters the fire extinguishing agent storage tank through the pipeline. In the body, push the piston, so that the fire extinguishing agent is sprayed out from the storage tank, covering the fire source and extinguishing it. [0003] Due to the existence of high-pressure gas...

AI Technical Summary

Problems solved by technology

[0003] Due to the existence of high-pressure gas cylinders, this system has safety risks in some cases, such as impact, large temperature changes, aging and corrosion of gas cylinders, etc.

At the same time, there is still a risk of air leakage from the high-pressure gas cylinder, resulting in insufficient power to push the fire extinguishing agent to spray after the system is started.

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