Working principle of pneumatic butterfly valve
Pneumatic butterfly valve (hereinafter referred to as pneumatic butterfly valve) is a sealed container filled with compressed gas (the inflation pressure is 0.5-0.7Mpa), and uses the compressibility of gas to realize its ball valve function.
In this way, the pneumatic butterfly valve has ideal elasticity. When the pneumatic 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 ball valve decreases, the volume of the inner chamber decreases, the stiffness of the pneumatic 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 pneumatic butterfly valve increases. When the vibration load decreases, the height of the pneumatic butterfly valve increases, the volume of the inner chamber increases, the stiffness of the pneumatic 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 pneumatic butterfly valve decreases. In this way, the height, cavity volume, and bearing capacity of the pneumatic butterfly valve in the effective stroke have smooth and flexible transmission with the increase and decrease of the vibration load, and the amplitude and vibration load are effectively controlled. The stiffness and bearing capacity of the ball valve can also be adjusted by increasing or decreasing the gas filling volume. The auxiliary air chamber can also be attached to achieve automatic regulation.
Air leakage analysis and judgment of Dongfeng pneumatic butterfly valve air suspension system: as the weather turns cooler, a considerable number of air suspension system users reflect how to deal with air leakage of air suspension. The on-board pneumatic butterfly valve suspension system randomly controls and adjusts the chassis height according to the change of vehicle load, which is faster than the previous pneumatic signal. At the same time, it can also directly control the rise and fall of the chassis through the control buttons on the unwheeling operator panel. The un wheeler operator panel is equipped with a control switch through which the un wheeler operator can send electrical signals to the control unit. The control unit sends corresponding signals to the front and rear solenoid valves to inflate or deflate. At the same time, the height sensors fixed at the front and rear bases can also send relevant signals to the control unit according to the load change, and also change the chassis height.