Plunger pump hydraulic end with long service life

Abstract

The invention discloses a plunger pump hydraulic end with long service life. The plunger pump hydraulic end comprises a valve box, a plunger, and a packing assembly; the valve box serves as a container for liquid conveying; the plunger is connected to the valve box through the packing assembly; the packing assembly comprises a packing component, a packing sleeve, a packing pressing cap, and a packing sleeve pressing cap; the packing sleeve is connected to the valve box in a sealed manner; the packing component used for sealing fills between the packing sleeve and the plunger; the packing sleeve pressing cap is used for fixing the packing sleeve; and the packing pressing cap is used for fixing the packing component. The plunger pump hydraulic end with the long service life has the beneficial effects that the service lives of the valve box, a suction pressing cover, a suction pressing cap, and a discharging pressing cap are prolonged through optimization design of each of the plunger, the suction pressing cover, and the suction pressing cap, thereby prolonging the service life of the plunger pump hydraulic end.

Description

Technical field [0001] The invention relates to the technical field of plunger pumps, in particular to a long-life plunger pump hydraulic end. Background technique [0002] Hydraulic fracturing construction is a big boost for oil and gas fields to increase production. The fracturing equipment that provides the main power is the core component, and the hydraulic end of the fracturing equipment is the key to the construction. The fracturing fluid or the sand-carrying fluid The low pressure port of the hydraulic end enters, and the medium in the cavity of the hydraulic end is pressurized during the reciprocating movement of the plunger, and enters the bottom of the well through the high pressure pipeline. As my country's shale gas exploration and development efforts continue to increase, the requirements for fracturing equipment continue to increase, the pressure value during the fracturing construction process continues to increase, the construction environment is harsh, the constr...

AI Technical Summary

Problems solved by technology

As my country's shale gas exploration and development continues to increase, the requirements for fracturing equipment continue to increase, the pressure value during fracturing construction continues to increase, the construction environment is harsh, and the construction time is prolonged. During the operation, the stress of the hydraulic end valve box Concentration, serious wear, heavy pressure on the pressure cap and gland, easy damage to the seal, and easy erosion of the valve seat all affect the service life of the liquid end

At present, the service life of the conventional liquid end is short, and the pump replacement cycle is frequent, which seriously affects the user's work progress. Therefore, it is very necessary to make a liquid end that can meet the operation needs for a long time.

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