The core technology of explosion-proof fully intelligent electric valve actuator

The structure of the explosion-proof fully intelligent electric valve actuator: The explosion-proof structure of the electric valve actuator and the manufacture of its parts are much more complex than that of general electrical equipment, which is mainly reflected in the following aspects:
The net volume of the explosion-proof chamber is large, and there may be more explosive gases in the cavity, so the force on the structure is large during the explosion. The shape of the explosion-proof chamber is irregular, and the aperture connecting the cavities is relatively small, especially the threaded holes where the motor line and the strain gauge line enter the control cavity, which is easy to produce the pressure overlap phenomenon that is unfavorable to the structure during the explosion. There are many flameproof parts involved, some shells are large and thin-walled, and the processing technology of the main body is very complex. Due to the large number of control wires and their cable cores, the binding posts on the terminal blocks are relatively dense.

Explosion-proof fully intelligent electric valve Actuator is based on RS-485 bus control theory in view of the current permanent gas pumping stations and power stations on the ground of most coal mines, and in the process of using traditional manual valves, the pipeline system cannot be remotely operated and automatically controlled according to logical procedures. Using the local intrinsically safe button and the upper unit state king software, a kind of mine flameproof electric valve Actuator was developed, which realized the local and remote opening and closing of the valve, as well as partial opening control. Combined with supporting management software, it can realize remote, automatic control and opening control, and explain its working principle. This valve actuator has the characteristics of low maintenance cost, simple and convenient operation, high actuator control accuracy and low failure rate. Through the long-term practical application in the coal mine site, it is shown that the mine flameproof electric valve actuator  can be fully controlled in accordance with the logical relationship procedures and steps prepared in advance, which is of great significance for the relevant coal enterprises to realize automation in the pipeline system of gas extraction and coalbed methane utilization and reduce the labor intensity of the personnel on duty.