Hydraulic end assembly and plunger pump with same

Abstract

The invention discloses a hydraulic end assembly and a plunger pump with the same. The hydraulic end assembly comprises a fluid suction valve and a fluid draining valve, wherein the fluid suction valve is internally provided with a fluid suction valve cavity, and a fluid suction valve element assembly is arranged in the fluid suction valve cavity; and the fluid draining valve is internally provided with a fluid draining valve cavity, and a fluid draining valve element assembly is arranged in the fluid draining valve cavity. The fluid suction valve and the fluid draining valve are arranged in parallel and are detachably connected, and the fluid suction valve cavity and the fluid draining valve cavity communicate with each other through a plunger cavity. The fluid suction valve element assembly is used for controlling the fluid suction valve cavity and the plunger cavity to be connected and disconnected for sucking fluid. The fluid draining valve element assembly is used for controllingthe fluid draining valve cavity and the plunger cavity to be connected and disconnected for draining fluid. According to the hydraulic end assembly and the plunger pump with the same, the problem thatan existing hydraulic end assembly is inconvenient to dismount, mount, maintain and repair is solved; and meanwhile, the excess flow is increased, volume efficiency is improved, the performance of the hydraulic end assembly and the plunger pump is also improved, and the using requirements under the complicated work conditions are met.

Description

technical field [0001] The present invention relates to a plunger pump, more specifically, to a liquid end assembly and a plunger pump including the same. Background technique [0002] The plunger pump is an important device in the hydraulic system. It relies on the reciprocating movement of the plunger in the plunger chamber to change the volume of the sealed working chamber to achieve liquid suction and discharge. The plunger pump includes a reduction mechanism and a fluid end assembly, which is used to convert mechanical energy into fluid pressure energy. [0003] The existing liquid end assembly includes a pump head main body, a liquid suction box, and a liquid suction valve seat support ring for connecting the pump head main body and the liquid suction box, wherein the pump head main body is provided with a liquid suction valve core, a liquid suction Valve seat, drain valve core, drain valve seat, and matching springs and sealing rings. When assembling, first, you nee...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to propose a fluid end assembly and a plunger pump including it, which solves the problems of disassembly, maintenance, and maintenance inconvenience of the existing fluid end assembly, and at the same time improves the flow rate and volumetric efficiency , improve the performance of the liquid end assembly and the plunger pump, and meet the use requirements under complex working conditions

Images