Spray mixing tank for dry powder fire extinguishment

Abstract

The invention belongs to the field of fire extinguish devices, and in particular relates to a spray mixing tank which is used for storing dry powder, can loosen dry powder before the dry powder is sprayed out, and enables the dry powder to be uniformly mixed with gas. By arranging an atomization device inside the spray mixing tank, the spray mixing tank capable of pre-loosening the dry powder deposited at the bottom of the tank body, scattering and reducing the dry powder deposited in the tank body into particle shape, and mixing the dry powder with gas to obtain an extinguishing agent with gas-powder mixing ratio suitable for fire extinguishment is realized.

Description

Technical field [0001] The invention belongs to the field of fire extinguishing devices, and particularly relates to a mist mixing tank used for storing dry powder and capable of loosening the dry powder before spraying out, and capable of uniformly mixing the dry powder and gas. Background technique [0002] Dry powder has the advantages of fast fire fighting speed, non-conductive, non-corrosive, and low value. The unique effect of fighting flammable, combustible liquid, gas fire and electrical fire has been recognized by the world. [0003] The commonly used dry powder fire extinguisher is a portable dry powder fire extinguisher. The gas and dry powder of the portable dry powder fire extinguisher are enclosed in a tank. When placed in the tank for a long time under high pressure conditions, the dry powder is easily deposited on the bottom of the tank to form a dry powder cake, which is sprayed out during use The mixing of air and dry powder is poor, and there is a problem that th...

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Problems solved by technology

[0003] The commonly used dry powder fire extinguishing device is a portable dry powder fire extinguisher. The gas and dry powder of the portable dry powder fire extinguisher are packaged in a tank. After being placed in the tank for a long time under high pressure conditions, the dry powder is easy to deposit on the bottom of the tank to form a dry powder cake, which is sprayed out when in use. The mixture of gas and dry powder is poor, there is a problem that the amount of gas is greater than that of dry powder, and the fire extinguishing effect is not ideal

[0004] In the dry powder fire extinguishing system, a single tank is used to store the dry powder. There is no pressure gas in the tank. Due to the accidental and uncertain fire, the dry powder must be stored in the tank for a long time. Due to the effect of gravity, the dry powder will also be stored in the tank. When it is necessary to extinguish the fire, the gas is directly charged from the top of the tank, so that what comes out of the spray gun may be powder cake or pure gas. the request of

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