Filling device and technology for dry-powder extinguisher

Abstract

The invention relates to a filling device and technology for a dry-powder extinguisher, and is used for solving the problem that dry powder can be sucked into vacuum pumping equipment under the actionof negative pressure. The filling device for the dry-powder extinguisher comprises a supporting frame, a conveying device and filling equipment and further comprises a rotating device; the conveyingdevice comprises a sliding plate connected with power; the filling equipment comprises a valve body arranged above the sliding plate; a lifting device is arranged on the supporting frame; the valve body is mounted on the lifting device; a blind hole is formed in the valve body; the filling equipment further comprises a valve element arranged in the blind hole; the valve element and the blind holeare in vertical sliding fit and in running fit; the lower end of the valve element adopts the conical structure; a spring is fixed to the upper end of the valve element; the other end of the spring isfixed to the top end of the blind hole; a powder filling channel and an air exhaust channel are formed in the valve element; an air passing channel and a powder passing channel are formed in the valve body; and the filling equipment further comprises the vacuum pumping equipment connected with the air passing channel and further comprises powder filling equipment connected with the powder passingchannel.

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 its filling process. Background technique [0002] The dry powder fire extinguisher is equipped with dry powder fire extinguishing agent such as ammonium phosphate salt. This dry powder fire extinguishing agent is easy to flow and dry. It is composed of inorganic salt and crushed and dried additives, which can effectively fight the initial fire; when the dry powder fire extinguisher is filled with dry powder , The bottle body needs to be vacuumed first, and then the dry powder is poured into the bottle body through the action of air pressure. The vacuum degree of the bottle body and the amount of dry powder poured into the bottle body are required during filling. [0003] At present, the patent document with application publication number CN108434633A discloses a filling head for filling and charging devices ...

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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