Plunger diaphragm pump for newly-arranged diaphragm device

Abstract

The invention relates to the field of machinery, in particular to a plunger diaphragm pump for a newly-arranged diaphragm device. The plunger diaphragm pump comprises a pump body and a newly-arranged diaphragm frame; the pump body is internally provided with an eccentric shaft and a plurality of plungers; the eccentric shaft sequentially pushes the plungers to do reciprocating motion; the end of the pump body is provided with a plunger cylinder barrel; a plurality of plunger sleeves matched with the plungers are inlaid in the plunger cylinder barrel; the front end of the plunger cylinder barrel is provided with a plunger cylinder barrel cavity; front-end diaphragms are fixedly connected to the front ends of the plungers; the newly-arranged diaphragm frame is fixedly connected with the plunger cylinder barrel, is of a flat-column-shaped structure and is provided with newly-arranged diaphragm frame cavities corresponding to front-end diaphragm positions; and the front ends of the newly-arranged diaphragm frame cavities tightly press newly-arranged diaphragms through newly-arranged diaphragm fixed pressing rings. The provided plunger diaphragm pump for the newly-arranged diaphragm device is simple in structure, convenient to operate and capable of preventing mechanical grinding and automatically detecting machine halt.

Description

[0001] The invention relates to the mechanical field, in particular to a plunger diaphragm pump with a newly added diaphragm device. Background technique [0002] At present, the plunger diaphragm pumps on the domestic and foreign markets are generally in the form of a single diaphragm. This single diaphragm plunger diaphragm pump separates the liquid to be delivered from the front end of the diaphragm and the mechanical parts such as the plunger bearing gear at the rear end of the diaphragm with a diaphragm. Therefore, the liquid containing solid particles can be transported at high pressure, but because it is a single diaphragm, if the diaphragm breaks, the high-pressure liquid containing particles will quickly rush into the mechanical part, causing grinding. If it is discovered late, it is unknown that the mechanical part has already started Grinding, if the maintenance is not stopped in time, the whole pump will almost be scrapped, commonly known as "one tank is rotten". B...

AI Technical Summary

Problems solved by technology

[0002] At present, the plunger diaphragm pumps on the domestic and foreign markets are generally in the form of a single diaphragm. This single diaphragm plunger diaphragm pump separates the liquid to be delivered from the front end of the diaphragm and the mechanical parts such as the plunger bearing gear at the rear end of the diaphragm with a diaphragm. Therefore, the liquid containing solid particles can be transported at high pressure, but because it is a single diaphragm, if the diaphragm breaks, the high-pressure liquid containing particles will quickly rush into the mechanical part, causing grinding. If it is discovered late, it is unknown that the mechanical part has already started Grinding, if the maintenance is not stopped in time, the whole pump will almost be scrapped, commonly known as "one tank is rotten". Big

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