Dual-active-control high-pressure large-flow high-water-base digital throttle valve and control method
The invention relates to a double-active-control high-pressure large-flow high-water-base digital throttling valve and a control method, a main valve is of a symmetrical cylinder type structure and is provided with an upper control cavity and a lower control cavity, pilot valves are of two two-posit...
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Main Authors | , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
03.02.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to a double-active-control high-pressure large-flow high-water-base digital throttling valve and a control method, a main valve is of a symmetrical cylinder type structure and is provided with an upper control cavity and a lower control cavity, pilot valves are of two two-position three-way normally-closed ball valve structures, each ball valve is driven by a normally-open high-speed switch valve, and the two normally-open high-speed switch valves are driven by the pilot valves. Displacement of a pilot valve is controlled through a PWM duty ratio signal, then the pressure difference of two control cavities of a main valve is controlled to push a main valve element to move, and the output flow of the main valve is accurately controlled through a displacement sensor. The main valve is a cone valve, the pilot valve and the pilot valve drive are ball valves, and good sealing can be kept under the working conditions of pure water and high water base; the pilot valve adopts a pair of two-posit |
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Bibliography: | Application Number: CN202211175674 |