Integrated double-electronic-control-unit three-position four-way medium-pressure solenoid valve

Abstract

An integrated double-electronic-control-unit three-position four-way medium-pressure solenoid valve comprises an integrated valve body, valve core assemblies, pilot valves and cable connectors. The integrated valve body is provided with a shared medium inlet end, a shared medium outlet end, two working ports and five installing holes. The valve core assemblies are placed in cavity cavities of the integrated valve body and are in threaded connection with the integrated valve body in a compressed mode through a compression plate. Two pilot valve seat openings are formed in the upper end of the integrated valve body and connected with shielding sleeves of the pilot valves. Inlet end medium technological passageways are formed in the integrated valve body and connected with the pilot valve seat openings. A coil assembly is sleeved outside each shielding sleeve, wherein a coil protecting outer casing is arranged outside each coil assembly, an upper cover is mounted on each coil protecting outer casing and screwed tightly through a nut, and one cable connector is arranged outside each coil protecting outer casing. The integrated double-electronic-control-unit three-position four-way medium-pressure solenoid valve is high in bearing pressure, small in size, light in weight, few in number of auxiliary pipelines and number of circuits and easy to arrange and install, and moreover, the whole integrated double-electronic-control-unit three-position four-way medium-pressure solenoid valve is made of stainless steel materials, and can meet the requirements of three-aspect prevention and conditions of other special environments.

Description

technical field [0001] The invention relates to a solenoid valve, in particular to an integrated double electric control three-position four-way medium-pressure solenoid valve for medium-pressure gas medium control. Background technique [0002] As an important accessory of the pneumatic actuator, the multi-way solenoid valve plays a key role in the pneumatic actuator and determines the working quality of the pneumatic actuator. In general, single-acting actuators use one solenoid valve; double-acting actuators are controlled by two three-way solenoid valves or one four-way solenoid valve, and the air source control pressure is mostly below 0.8MPa. This structural form makes the pressure source medium always exist at one end of the cylinder of the pneumatic actuator, which poses a safety hazard. If two three-way solenoid valves are used to control the pneumatic actuator, its structure is cumbersome, maintenance is inconvenient, the installation position is limited, and the ...

AI Technical Summary

Problems solved by technology

This structure makes the cylinder of the pneumatic actuator always have a pressure source medium, which poses a safety hazard.

If two three-way solenoid valves are used to control the pneumatic actuator, its structure is cumbersome, maintenance is inconvenient, the installation position is limited, and the arrangement of gas source pipelines and power supply is complicated, etc.

At the same time, the existing products cannot meet the requirements of special marine environmental conditions such as high medium pressure and humidity, high temperature, salt spray, mold, etc., and cannot meet the needs of the system.

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