(1) Pneumatic actuator is a device that uses air pressure to drive the opening and closing or regulating valve. It has the advantages of safety and explosion-proof. It is an indispensable and important device for pneumatic valve products. How to improve the switching speed of the pneumatic actuator while using it?
1. An intermediate storage tank can be added on the side of the pneumatic actuator. The instrument gas first enters the intermediate tank, and then is introduced into the actuator. This method is used for large control valves and large gas consumption.
2. The function of adding a gas storage tank is not to increase the pressure of the inlet gas source, but to ensure a constant pressure source. This method is based on the fact that the inlet pipe is relatively small, and the gas source supply cannot keep up, resulting in a decrease in pressure. . This method is generally used to reserve important valves as emergency gas sources.
3. If the pneumatic actuator is required to switch faster: you can change the air source pipe to a thicker pipe so that the air intake volume of the air source will increase, and the switch will be faster; if your valve is really large, there are If necessary, consider adding a gas storage tank, otherwise, it is completely unnecessary!
4. One is to thicken the signal pipeline, and the other is to add an accelerator, which can improve the switching speed of the pneumatic actuator.
5. There is a regulating valve on the pneumatic actuator. You can see if it has been opened to the maximum. If it is, it can also be considered to increase the signal air source pressure or pipe diameter within a certain range. In addition, increase the air source pressure and the size of the air source pipe, increase the corresponding cylinder hole, and then speed up the exhaust valve, which will increase the opening speed of the pneumatic actuator.
6. In fact, when the valve is equipped with a pneumatic actuator, the on-off time requirements of the valve should be considered, and attention should be paid to the open and closed torque of the valve and the torque of opening and closing under pressure. Under the premise of considering the safety factor of the torque, consider the input of the pneumatic actuator. For the speed of air and exhaust, consider increasing the pipe diameter and the selection of air control valve and quick exhaust valve on the exhaust pipe and pneumatic accessories!
(2) The shaft of the pneumatic actuator is an important part of the pneumatic actuator. It also plays a very important role in use. It plays a role in the startup and shutdown of the actuator, and its switching speed is also affected by many factors. However, its switching speed can also be set independently. Let's talk about the switching speed of the pneumatic actuator shaft valve.
1. The shaft of the pneumatic actuator can be controlled accurately and repeatedly. 0.25% of the electric actuator is affected by temperature. The internal condensation or water entering through the conduit can destroy the components of the electric actuator. The switching speed of the valve of the pneumatic actuator shaft can be independently set. Certainly, the oil leaks when the electric actuator is in action, and it is difficult to clean up when it is restored and repackaged. The pneumatic actuator shaft uses gas, which is very clean, and there is no need to worry about oil pollution.
2. The shaft of the pneumatic actuator can accept continuous air signal and output linear displacement (after adding the power/pneumatic conversion device, it can also accept continuous electrical signal), and some can output angular displacement after being equipped with a rocker arm.
3. When the power is cut off, the fault closure of the pneumatic actuator shaft can avoid the backflow of the filter or eliminate the overflow of the filter. Pneumatics make the project budget looser. Electric sparks are very dangerous in humid environments, and pneumatics are not affected by fluctuations in the external environment.
