Ball valve hydraulic loop design

Abstract

The invention relates to a ball valve hydraulic loop design. The action is completed through a control oil cylinder and a series of control elements; the ball valve hydraulic loop design mainly comprises a pressure reduction valve, a hydraulic control one-way valve, a reversing valve, a pressure measuring point, a control oil cylinder, an energy accumulator, a throttle valve, a one-way valve and the like. The hydraulic control loop designed for solving the problem reduces the high-pressure work condition of a valve control oil cylinder to a great degree; the obvious effect for prolonging the service life of a valve and the service life of a control mechanism of the valve is achieved; the pressure reduction valve control pressure change is realized through the control on a pressure reduction valve outer control oil leakage opening; through the energy accumulation effect of the energy accumulator, the effect of still maintaining high pressure after the direction change for a period of time is achieved; through the regulation on the throttle valve, the control on the pressure reduction process in the time aspect can be realized; in addition, the practical application range is expanded through the characteristics of two-stage pressure regulation, delay pressure relief and the like owned by a hydraulic system.

Description

technical field [0001] The invention relates to a hydraulic circuit, which is especially suitable for mining machinery. Background technique [0002] The ball valve came out in the 1950s. With the rapid development of science and technology, the continuous improvement of production technology and product structure, it has rapidly developed into a major valve category in just 40 years. In western industrially developed countries, the use of ball valves is increasing year by year. In my country, ball valves are widely used in petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmaceuticals, water conservancy, electric power, municipal, steel and other industries, and occupy a pivotal position in the national economy. It has the action of rotating 90 degrees. The cock body is a sphere with a circular through hole or channel passing through its axis. Ball valves are mainly used in pipelines to cut off, distribute and change the flow direction of med...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problem of component failure caused by the long-term working state of the control cylinder under pressure, a delicate hydraulic circuit design was invented for the control of the ball valve.

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