Built-in superfine dry powder fire-extinguishing device

Abstract

The invention discloses a built-in superfine dry powder fire-extinguishing device. The built-in superfine dry powder fire-extinguishing device comprises a fixing seat, an external cylinder, an internal barrel, a spraying pipe and a piston piece. An air inlet is formed in the side wall of the fixing seat; one end of the external cylinder is connected with an opening of the fixing seat; the internal barrel is filled with superfine dry powder and slidably assembled on the internal side of the external cylinder, and a plurality of spraying holes are formed in the side wall of the upper blind end of the internal barrel; one end of the spray pipe is fixedly connected to the bottom end of the internal side of the fixing seat, the other end of the spray pipe extends into the internal barrel, a horn opening slidably matched with the internal side wall of the internal barrel in a sealed mode is formed in the end, extending into the internal barrel, of the spray pipe, and a through hole communicating with the horn opening is formed in the side wall of the spray pipe; and the piston piece is slidably installed on the spray head in a sleeving mode so as to block the through hole in the spraying pipe. The built-in superfine dry powder fire-extinguishing device is simple in structure and small in size, the requirement for an installing space is lowered, the superfine dry powder is blown out to extinguish fire from the multiple spraying holes through gas driving, and a working face can cover all positions of pipes and cable wire casings.

Description

technical field [0001] The invention belongs to the field of fire-fighting equipment, and in particular relates to a built-in superfine dry powder fire extinguishing device. Background technique [0002] The upper closed space of houses, warehouses, warehouses and other partitions is usually used to arrange pipes and cable ducts. When a fire occurs here, the sprinkler device used for fire extinguishing generally cannot effectively work on the pipes and cable ducts, so it can only Ultra-fine dry powder fire extinguishing device is used for protection. Most of the common ultra-fine fire extinguishing devices are suspended structure or prefabricated nozzle structure. The suspended structure generally has a large appearance and volume. Due to the limited installation position, it is less adaptable in actual use. Poor, when the prefabricated nozzle structure is used, another pipeline needs to be connected to transport the dry powder to the nozzle, which increases the difficulty o...

AI Technical Summary

Problems solved by technology

[0002] The upper closed space of houses, warehouses, warehouses and other partitions is usually used to arrange pipes and cable ducts. When a fire occurs here, the sprinkler device used for fire extinguishing generally cannot effectively work on the pipes and cable ducts, so it can only Ultra-fine dry powder fire extinguishing device is used for protection. Most of the common ultra-fine fire extinguishing devices are suspended structure or prefabricated nozzle structure. The suspended structure generally has a large appearance and volume. Due to the limited installation position, it is less adaptable in actual use. Poor, when the prefabricated nozzle structure is used, another pipeline needs to be connected to transport the dry powder to the nozzle, which increases the difficulty of work

Images