One-way pressure regulating overflow valve with thrust bearing

Abstract

A one-way pressure regulating overflow valve with a thrust bearing comprises a lower valve body, an overflow valve seat, an overflow valve spring, a valve rod, a lower flange, a bend, a spacer bush, a one-way valve seat, a one-way valve element, a one-way valve spring, a compression ring, a lining, a guiding sleeve, a lower spring base, a disc spring, an upper spring base, the thrust bearing, a lock nut, an adjusting bolt, a gland, an upper valve body, a locking nut, a round nut and a Y-shaped sealing ring. According to the one-way pressure regulating overflow valve, the liquid collection type overflow manner is adopted, the field work environment is changed, and meanwhile resources are saved; the independent overflow valve seat and the independent one-way valve seat are easy to machine, maintain and replace; the disc spring with the large rigidity and variable rigidity is used, and therefore flow different in pressure in the system can be accurately controlled; the stroke is short, the load is large, the axial occupied space is small, and combined usage is convenient; and the one-way pressure regulating overflow valve serves as a mechanical load for overcoming the medium pressure, the one-way pressure regulating overflow valve is suitable for a structure with the wide load range and more suitable for a high-pressure structure, the valve is opened and closed in time, a valve element is not prone to frequent adjustment or vibration, and dismounting, mounting and replacing are easy.

Description

technical field [0001] The invention belongs to the technical field of hydraulic machinery, in particular to a one-way pressure regulating overflow valve with a thrust bearing. technical background [0002] The high-pressure reciprocating plunger pump, also known as the plunger pump, is an important device in the hydraulic system. The check valve and the pressure regulating relief valve are indispensable protection components in the high-pressure reciprocating plunger pump system. Most of the commonly used one-way valves and pressure regulating and relief valves are split manual regulating valves. Among them, the pressure regulating overflow valve is used to adjust the system pressure to keep the flow constant. When the system pressure increases and exceeds the preset pressure value, the overflow valve opens, the excess flow overflows, and the system pressure no longer increases, so that Ensure that the outlet pressure of the plunger pump is constant. During normal system ...

AI Technical Summary

Problems solved by technology

However, the disadvantages of the above-mentioned one-way valve and pressure regulating and relief valve are that due to their split structure, external leakage points are increased, and the structural design of the pressure regulating and relief valve is unreasonable, so the adjustment accuracy is not high, especially for high pressure relief valves. Flow valve, the preset pressure value is high, and a large torque needs to be provided for manual adjustment, which is laborious and inconvenient to operate

Images