Suspending ultrafine dry powder self-service extinguishing device

Abstract

The invention discloses a suspending ultrafine dry powder self-service fire-extinguishing device. The suspending ultrafine dry powder self-service fire-extinguishing device comprises a bottle body; one end of the bottle body is blind end; the other end of the bottle body becomes narrower to form a contraction section; the end of the contraction section is an open end; the open end is connected with an extension section expanding gradually; and the end of the extension section forms an injection orifice. The suspending ultrafine dry powder self-service fire-extinguishing device is characterized in that a gas generator is disposed out of the blind end; a gas outlet of the gas generator is communicated with an inner cavity of the bottle body through a through hole on the blind end; a prefabricated diaphragm for sealing a fire-extinguishing agent in the bottle body is arranged between the open end and the extension section; the prefabricated diaphragm is in a conventional simple domed tensile shape; the prefabricated diaphragm is provided with a prefabricated groove; and the depth of the prefabricated groove is 0.2 mm-0.3 mm. In a non-working state, an ultrafine dry powder fire-extinguishing agent is stored in the bottle body and the interior of the bottle body is in a normal pressure state. When a fire occurs, the gas generator is started to produce a high-pressure gas rapidly and the high-pressure gas enters into the bottle body; and when the pressure in the bottle body reaches to a certain value, the high-pressure gas breaks through the prefabricated diaphragm and then the high-pressure gas with the ultrafine dry powder fire-extinguishing agent stored in the bottle body is ejected from the injection orifice.

Description

technical field [0001] The invention relates to the technical field of fire fighting and fire extinguishing, in particular to a suspended superfine dry powder self-service fire extinguishing device. Background technique [0002] At present, the fire extinguishing media equipped with fire extinguishers mainly include water, halon fire extinguishing agent, carbon dioxide fire extinguishing agent, foam fire extinguishing agent and dry powder fire extinguishing agent. Among them, water is widely used as a common fire extinguishing medium, but the fire extinguishing efficiency is low, and it cannot exert fire extinguishing performance for some oils, electrical appliances, active metals, chemicals, impermeable combustibles and expensive equipment, and due to water pressure, The effective height that can be reached is limited, so there are great limitations. Halon fire extinguishing agents are currently banned due to their high toxicity and damage to the ozone layer. Compared wit...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is: on the one hand, this method requires regular maintenance and inspection of the pressure in the bottle; on the other hand, the high-pressure gas in the bottle will become a potential source of danger

The disadvantages of this method are: 1. Excessive dry powder deposition will be generated under the injection port; 2. The existence of gunpowder will increase the possibility of secondary disasters

Images