Before using a linear electric actuator, it is necessary to conduct a thorough inspection
Direct stroke electric actuatorIt plays a very important role in modern production process automation and is often referred to as the "hands and feet" for achieving production process automation. It is powered by electrical energy and receives standard signals (analog or digital) from regulators. By converting these signals into corresponding mechanical displacements (angles, lines, or multiple rotations), it automatically changes operating variables (such as regulating valves, dampers, and baffle openings) to achieve automatic adjustment of regulated parameters (temperature, pressure, flow rate, liquid level, etc.), ensuring that the production process proceeds according to predetermined requirements. So it has a significant impact on the safe operation, reliability, and quality of the automatic adjustment system.
This device is a driving device that can provide linear or rotational motion, using a certain driving energy and working under a certain control signal. Powered by electrical energy, it receives standard signals (analog or digital) from regulators, and automatically changes operating variables (such as regulating valves, dampers, and baffle openings) by converting these signals into corresponding mechanical displacements (angles, lines, or multiple rotations), in order to achieve automatic adjustment of the regulated parameters (temperature, pressure, flow rate, liquid level, etc.) and ensure that the production process proceeds according to predetermined requirements.Direct stroke electric actuatorThe advantages of this are convenient energy access, fast signal transmission speed, long transmission distance, easy centralized control, high sensitivity and accuracy, easy coordination with electric regulating instruments, and simple installation and wiring.
To ensure the normal operation of the equipment, improve the quality and reliability of control and regulation, actuators must be prepared and tested before operation in practical applications. Usually, auxiliary detection devices include valve intelligent locator modules and handwheel mechanisms. The intelligent locator module uses feedback principle to improve the performance of the actuator, enabling the electric valve to be controlled according to the control signal of the regulator. The handwheel mechanism is used to directly operate and regulate valves, so that production can still work normally in the event of power outages, regulator output failure, or electric actuator damage and malfunction. So before the actuator is put into operation, corresponding tests should be carried out. First, the manual and electric switches should be made, and then the valve should be driven by the handwheel to check whether the switch is sensitive and reliable.
Check whether the stroke opening action and indication of the electric valve are correct. If the handwheel cannot be turned, the valve actuator needs to be removed and repaired. If the manual operation is normal without interference and the mechanism does not operate, it is necessary to check whether the joint connection is reliable. If the valve can be driven by a handwheel, then check the electrical part. First check the action of the control mechanism, then checkDirect stroke electric actuatorAre the main power supply, relays, control power supply, fuses, and all indicator lights and switches functioning properly. Check and confirm whether to replace the relevant parts. If there are no issues with the electrical components, then check the motor and other parts. This can be resolved by replacing the relevant components.