Extinguishing apparatus combined pyrotechnical aerosol with powder extinguishing agent

A dry powder fire extinguishing agent, pyrotechnic aerosol technology, applied in fire rescue and other directions, can solve the problem of not using energy as much as possible, and achieve the effects of reducing temperature, reducing toxicity, and increasing output

Inactive Publication Date: 2005-11-16
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

Generally, the temperature of the combustion product of pyrotechnic aerosol fire extinguishing agent is usually between 800-1000°C, and in order to ensure that no thermal damage is caused to the objects in the protected space, the actual use of pyrotechnic aerosol fire extinguishing devices requires that the aerosol outlet temperature be controlled at 100-200°C. Therefore heat absorption, cooling and purification filter devices are generally designed in the pyrotechnic aerosol fire extinguishing device, for example, iron balls and stone b...

Method used

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  • Extinguishing apparatus combined pyrotechnical aerosol with powder extinguishing agent

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Embodiment Construction

[0010] exist figure 1 Among them, igniter (1), end cover (2), shell (3), combustion chamber (4), intermediate connector (5), filter screen (6), chemical cooling chamber (7), physical cooling chamber (8 ), the dry powder fire extinguishing agent (9), the pressure buffer chamber (10), the sealing film (11), and the spout (12) are arranged axially in sequence to form a pyrotechnic aerosol and dry powder fire extinguishing agent composite fire extinguishing device. The shell (3) is a cylindrical structure, and is manufactured by welding process, so it has high pressure resistance. The end cover (2) adopts a threaded structure and is connected with the cylindrical shell (3). In order to ensure the overall airtightness of the gas generator, the joint is sealed with a copper high-temperature and high-pressure gasket, and the two shells (3) are connected by the middle The parts are threaded, and the spout and the shell are also threaded. The igniter (1) can be a common electric igni...

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Abstract

A fire extinguisher using pyrotechnic aerosol and dried fire extinguishing powder is composed of ignitor, end cover, casing, burning chamber, net filtering, connector, chemical cooling chamber full of the microspheres prepared from the mixture of potassium nitrate and potassium carbonate, physical cooling chamber full of spherical Al2O3, dried fire extinguishing powder module, pressure buffering chamber, sealing film and nozzle.

Description

Technical field [0001] The invention relates to a novel fire extinguishing device, which is a fire extinguishing device which comprehensively utilizes the combined fire extinguishing efficiency of pyrotechnic aerosol and dry powder fire extinguishing agent. technical background [0002] Aerosol fire extinguishing device is a new type of fire extinguishing equipment developed rapidly in recent years. It is widely used because of its small size and good fire extinguishing effect. As we all know, fire extinguishing aerosol is a kind of N 2 , CO 2 、H 2 Gas-solid aerosol composed of gas such as steam and metal oxide particles, there is inevitably a certain proportion of harmful gases such as CO, NO, HCN, NH in the aerosol 3 Wait. Generally, the temperature of the combustion product of pyrotechnic aerosol fire extinguishing agent is usually between 800-1000°C, and in order to ensure that no thermal damage is caused to the objects in the protected space, the actual use of pyrot...

Claims

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Application Information

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IPC IPC(8): A62C13/22
Inventor 杜志明赵林双耿海虹邢军
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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