A dry powder fire extinguisher filling process

Abstract

The invention relates to a dry powder fire extinguisher filling device and its filling process, which are used to solve the problem that dry powder will be sucked into vacuum equipment under the action of negative pressure. The dry powder fire extinguisher filling device includes a support frame, a transmission device and a filling device. The filling equipment also includes a rotating device; the transmission device includes a sliding plate connected with power; the filling equipment includes a valve body arranged above the sliding plate, a lifting device is arranged on the support frame, and the valve body is installed on the lifting device; There is a blind hole, and the filling equipment also includes a valve core arranged in the blind hole. The valve core slides up and down with the blind hole and rotates. The lower end of the valve core is a conical structure; the upper end of the valve core is fixed with a spring. The other end is fixed on the top of the blind hole; a powder filling channel and an air extraction channel are opened in the valve core; an air passage and a powder passage are opened on the valve body; the filling equipment also includes a vacuum device connected to the air passage, and Including the powder filling equipment connected with the powder passage.

Description

technical field [0001] The invention relates to the technical field of dry powder fire extinguisher filling, in particular to a dry powder fire extinguisher filling device and a filling process thereof. Background technique [0002] The dry powder fire extinguisher is equipped with a dry powder fire extinguishing agent such as ammonium phosphate salt. This dry powder fire extinguisher is easy to flow and dry. It is composed of inorganic salts and crushed and dried additives, which can effectively extinguish the initial fire. Firstly, the bottle body needs to be evacuated, and then the dry powder is poured into the bottle body through the action of air pressure. There are requirements for the vacuum degree of the bottle body and the amount of dry powder poured into the bottle body during filling. [0003] At present, the patent document whose application publication number is CN108434633A discloses a filling head for a dry powder fire extinguisher filling and charging device,...

AI Technical Summary

Problems solved by technology

[0005] Yet the above-mentioned filling head that is used for the dry powder fire extinguisher filling inflatable device also has the following defects: when filling, it is necessary to use vacuum equipment to draw away the air in the bottle through the air extraction pipe joint, so that the bottle reaches a certain level. Then the swing blocking plate will open automatically, and the dry powder will enter the bottle through the feeding pipe under the action of vacuum; since the suction pipe joint is directly connected with the bottle through the vacuum pumping chamber, the dry powder will be pumped under the action of negative pressure. The air pipe joint enters the vacuumed equipment, causing the air pipe joint to be blocked and causing damage to the vacuumed equipment

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