Fluid self-assisted valve controller and control method thereof

Abstract

The invention discloses a fluid self-assisted valve controller and a control method thereof. The controller comprises a valve body mounted on a main, and a power assisting device which can open, close or adjust the valve body is mounted on the main as well; and the power assisting device sequentially comprises an inlet pressure sensor, a first electromagnetic valve bank, a power assisting mechanism, a second electromagnetic valve bank and an outlet pressure sensor which are connected through a power assisting pipeline. The control method includes the following steps: (a) the inlet pressure sensor and the outlet pressure sensor acquire the pressure on both sides of the valve body in real time, and judge whether pressure difference is forward or backward or does not exist; and the pressure difference is utilized to open or close the first electromagnetic valve bank and the second electromagnetic valve bank; (b) after entering the power assisting mechanism via the opened electromagnetic valves and the power assisting pipeline, fluid drives a valve rod to rotate or move up and down, so that the valve body is opened, closed or adjusted. With the advantage of energy saving, the fluid self-assisted valve controller can be widely applied in the energy consumption control of the valve bodies of butterfly valves, ball valves, cone valves, flat valves, gate valves and the like.

Description

technical field [0001] The invention relates to the field of valve body control, and specifically refers to a fluid self-powered valve control device and a control method thereof, which use the power boost generated by the energy of the fluid itself to switch or adjust the valve body. Background technique [0002] As a mature product, the valve body has been widely used in the field of air, gas, liquid and other fluid control. In the existing various valve control devices, the energy required for the execution of the movement comes from external energy sources. In the prior art, there are mainly the following methods: (1) The operator switches or adjusts the valve manually; (2) Switches or adjusts the valve through electric energy; (3) Switches or adjusts the valve through pneumatic or hydraulic actuators. Or adjust the valve; these control methods have a common defect that consumes more energy during the execution of the movement. In areas where energy supply is relatively...

AI Technical Summary

Problems solved by technology

In the prior art, there are mainly the following methods: (1) The operator switches or adjusts the valve manually; (2) Switches or adjusts the valve through electric energy; (3) Switches or adjusts the valve through pneumatic or hydraulic actuators. Or adjust the valve; these control methods have a common defect that they need to consume more energy during the execution of the movement

In areas where energy supply is relatively scarce, such as long-distance field pipelines and underwater transportation pipelines, the above-mentioned control methods have certain limitations.

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