Electric butterfly valve, also known as electric butterfly valve, pneumatic tire, leather tiger, etc., was born in the mid-19th century, and was used for mechanical equipment vibration reduction in the early stage. Because of its many advantages, it has been widely used in modern highway and rail transit vehicles, industrial machinery and other fields. The electric butterfly valve uses compressed air (water) as the medium. It is an elastic element that uses the reaction force of the compressed air inside as the elastic restoring force. It is a non-metallic butterfly valve with the function of butterfly valve. It has many advantages over metal butterfly valves:
1. The rigidity of the electric butterfly valve changes with the load, making the butterfly valve device ideal nature
2. The electric butterfly valve has nonlinear performance. Its performance curve can be designed into an ideal shape and can bear axial and radial loads at the same time, as well as transmit torque
3. The electric butterfly valve can obtain different bearing capacity by adjusting the internal pressure, so it can meet the needs of multiple loads;
3. Electric butterfly valve has light weight and long service life;
4. The electric butterfly valve has good high-frequency vibration isolation and sound insulation function. The electric butterfly valve requires small installation space and is easy to replace. Operating principle of electric butterfly valve When the electric butterfly valve works, the inner chamber is filled with compressed air to form a compressed air column. With the increase of vibration load, the height of the butterfly valve decreases, the volume of the inner chamber decreases, the rigidity of the butterfly valve increases, and the effective bearing area of the air column in the inner chamber increases. At this time, the bearing capacity of the butterfly valve increases. When the vibration load decreases, the height of the butterfly valve increases, the volume of the inner chamber increases, the stiffness of the butterfly valve decreases, and the effective bearing area of the air column in the inner chamber decreases. At this time, the bearing capacity of the butterfly valve decreases. In this way, within the effective stroke of the electric butterfly valve, the height, inner cavity volume and bearing capacity of the electric butterfly valve have smooth flexible transmission with the increase and decrease of the vibration load, and the amplitude and shock load have been effectively controlled. The stiffness and bearing capacity of the butterfly valve can also be adjusted by increasing or decreasing the air filling volume. The auxiliary air chamber can also be attached to achieve automatic regulation.