Line-type temperature-sensing self-starting extra-high-pressure fire extinguishing agent release device

Abstract

The invention provides a line-type temperature-sensing self-starting extra-high-pressure fire extinguishing agent release device. The release device is characterized in that a cavity of a sprayer valve body is internally provided with an impactor and an impact cutting head, one end of the sprayer valve body is provided with a sprayer and the other end is provided with a diaphragm; an upper hole at the middle part of the sprayer valve body is provided with a line-type temperature-sensing detection tube and a piston, and a lower hole at the middle part of the sprayer valve body is provided with a microswitch; the rear end of a piston shell is provided with a safety pin and a shaft pin, the shaft pin is connected with a transmission shaft, the tail end of a transmission sleeve is radially provided with a half-moon shaft and is positioned by a cotter pin radially passing through the half-moon shaft, so that an entity in a concave part of the half-moon shaft pushes against a boss part of the impactor for realizing positioning; and a cavity of the rear end of the piston is internally provided with a reset spring which is positioned in the upper hole through a nut. When the ambient temperature reaches or exceeds a set value, the line-type temperature-sensing detection tube explodes to release pressure to enable the reset spring to push the piston to move, drive the displacement of the half-moon shaft, enable the impactor to fall off and enable the impact cutting head to quickly impact diaphragm to realize punching, and thus the release device can be started for extinguishing fire. In addition, the storage pressure of the fire extinguishing agent is 2-30 MPa, no power supply is needed, the line-type temperature-sensing detection tube has a large protection range and the storage pressure of the fire extinguishing agent is high.

Description

technical field [0001] The invention relates to an automatic fire extinguishing device, which is a linear temperature-sensing self-starting ultra-high pressure fire extinguishing agent release device. technical background [0002] The "automatic fire extinguishing device of ultra-fine dry powder for automobile engine compartment" in the prior art, Chinese Patent No. ZL200520144740.9, reference figure 1 As shown, it includes a fire extinguishing agent cylinder 1`, a constant temperature nozzle 2`, a superconducting thermal line 3` and a pressure indicator 4`. The fire extinguishing agent cylinder 1` is a pressure-resistant container filled with ultra-fine dry powder for fire extinguishing agent and compressed nitrogen, the working pressure is 1.5Ppa, the fire extinguishing agent cylinder 1` is provided with a nozzle, the constant temperature nozzle 2` is set at the nozzle of the fire extinguishing agent cylinder 1`, and forms a closed container with the fire extinguishing age...

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of this ultra-fine dry powder fire extinguishing device is: the temperature-sensing glass ball directly withstands the sealing assembly of the fire extinguishing agent release port. Since the temperature-sensing glass ball itself is not strong enough, it cannot withstand a large working pressure. The actual working pressure of the temperature-sensing glass ball The application range is 1.2MPa ~ 2MPa, so the fire extinguishing device with this structure has a limited application range. It is only suitable for the working pressure of the fire extinguishing agent cylinder is 1.5Ppa, and cannot meet the requirements of the high pressure gas fire extinguishing device working pressure of 2MPa ~ 30MPa

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