How does the switching speed of pneumatic actuators increase?

Although various types of pneumatic actuators have different structures and working principles, most pneumatic actuators have the following characteristics:

Can be stepless speed regulation. As long as the opening of the intake valve or exhaust valve is controlled, that is, the flow of compressed air is controlled, the output power and speed of the motor can be adjusted to achieve the purpose of adjusting the speed and power.

It can turn forward or reverse. Most pneumatic actuators can realize the forward and reverse of the output shaft of the gas motor, and can be reversed instantaneously. The impact is small in the forward and reverse transition.

There is a regulating valve on the pneumatic actuator, you see if it has been opened to the maximum, if so, in a certain range has added signal air source pressure or pipe diameter can also be considered. There is also to increase the pressure of the air source and the size of the air source pipe, increase the corresponding cylinder holes, and then speed up the exhaust valve, which will increase his opening speed.

In fact, when the valve is selected for the pneumatic actuator, the valve switching time requirements should be considered, pay attention to the valve's empty opening and closing torque and pressure opening and closing torque, under the premise of considering the safety factor of torque, consider the intake and exhaust speed of the pneumatic actuator, and consider increasing the pipe diameter and the selection of pneumatic control valve and quick discharge valve on the exhaust pipe and pneumatic accessories!

Pneumatic actuators are sometimes equipped with corresponding auxiliary equipment. Commonly used valve positioner and handwheel tissue. The effect of the valve positioner is to use the feedback principle to improve the performance of the actuator, so that the actuator can achieve accurate positioning according to the control signal of the operator.

The effect of the handwheel organization is that when the control system is due to power failure, gas shutdown, no output of the controller or the failure of the executive organization, it can be used to directly operate the control valve to maintain the normal production.

The pneumatic actuator is a kind of pneumatic actuator for continuous rotating motion, is a kind of compressed air pressure energy into reverse mechanical energy conversion equipment, its effect is equivalent to the motor or hydraulic motor, it outputs torque, driving the executive organization for rotating motion. Widely used in pneumatic transmission are geared air motors, blades and pistons. Pneumatic actuator is the prime mover of compressed air as the working medium, which is a power device that converts pressure energy into mechanical energy by using the expansion of compressed gas, usually called air motor.