Fire extinguishing apparatus using liquid nitrogen as fire extinguishing agent

A technology of fire extinguishing device and fire extinguishing agent, which is applied in fire rescue and other fields, can solve the problems of different levels of fire extinguishing, and achieve the effect of simple structure, easy operation and reliable function

Inactive Publication Date: 2003-11-12
姜华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is used in special occasions, such as storage of archives, documents, cultural relics, books, calligraphy and paintings, occasions of valuables and fire extinguishing of related military units.

Method used

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  • Fire extinguishing apparatus using liquid nitrogen as fire extinguishing agent
  • Fire extinguishing apparatus using liquid nitrogen as fire extinguishing agent
  • Fire extinguishing apparatus using liquid nitrogen as fire extinguishing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Such as figure 1 As shown, the fire extinguishing device is composed of a storage tank 1 , an evaporator 14 , a cryogenic liquid pump 3 , a valve 2 , an insulating pipe 4 and a nozzle 5 . The storage tank 1 is composed of a cylindrical tank body, a stainless steel liner with a vacuum jacket on the outside of an arched head, and a heat-insulating outer layer wrapped with aluminum foil. The storage tank 1 has a pressure resistance of 0.8MPa, and an electric contact pressure gauge 17, a liquid level gauge 18, a safety valve 19, and a vent pipe 13 are installed on it. Filling valve 15 and purging valve 16 are installed at the bottom. An evaporator 14 is installed on one side of the storage tank 1 , and the evaporator 14 communicates with the storage tank 1 through a liquid inlet pipe 11 and a nitrogen pipe 12 . The bottom of the other side of the storage tank 1 is connected to the cryogenic liquid pump 3 through the valve 2, and the ultra-low temperature liquid pump 3 is ...

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PUM

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Abstract

The invention is a kind of extinguishing device which uses liquid nitrogen as extinguishing agent. The tin is made upof stainless steel wire vacuum clamp and adiabatic outer laye which is winded by aluminium and platinum. There is pressure gage, liquid leveler, air relief valve, safety valve. The bottom has a liquid charging valve and a purifying valve; one side has a evaporating device and the other side has a liquid nitrogen setting device. The electric control system is made up of linkage controller, extinguishing control plate, temperature sensing detector, annunciator and CRT monitoring device, they are connected by circuit. The control is divided into manual control and automatic control. The liquid nitrogen setting device is made up of electric self-control valve, ultralow temperature liquid pump, adiabatic pipe and nozzle.

Description

technical field [0001] The invention relates to a fire extinguishing device, in particular to the technical field of design and manufacture of a fire extinguishing device using liquid nitrogen as a fire extinguishing agent. Background technique [0002] Mainly contain mobile and fixed in the existing fire extinguisher. The mobile type includes fire-fighting water trucks and fire-fighting foam trucks; the fixed type mainly includes nitrogen pipeline-type automatic fire extinguishing systems for important occasions, and fire hydrants for general occasions. There are also hand-held foam fire extinguishers and various chemical fire extinguishers. Water is the most widely used fire extinguishing agent. However, water cannot be used to extinguish a hydrocarbon fire, because its specific gravity is lighter than water and insoluble in water, so it always burns on the water surface when it catches fire. Foam fire extinguishing effect is good for chemical and chemical materials fir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C35/02A62C35/62
Inventor 姜华杨谷
Owner 姜华
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