Pneumatic diaphragm pump using compressed air as the power source, is a pneumatic positive displacement self-priming pump, pump products in the country is a newest pump products, is a new type of conveyor machinery. Pneumatic Diaphragm Pump Operating Principle: Pumping Diagram on the Right Shows the flow pattern of the first pump before the pump is not primed. Figure 1: Air is compressed into the back of diaphragm A via a gas valve and is squeezed by the diaphragm. This air-driven approach eliminates the mechanical stress of typical piston drives, significantly extending the life of the diaphragm. When the compressed air pushes the diaphragm A away from the center body, the diaphragm B at the other end is simultaneously pulled toward the central body by the connected central shaft. At this time, the air on the back of the diaphragm B is discharged to the outside of the pump body through the outlet. This causes chamber B to be evacuated so that the fluid can be forced by the inlet manifold to push the valve ball away from the valve seat to allow fluid to freely enter chamber B until it fills up due to the outside atmospheric pressure. Figure 2: When the air-squeezed diaphragm A reaches its limit of displacement, the air valve guides the air to the back of the diaphragm B, which also presses to push it away from the center body and the attached diaphragm A pulled back to the center body, at this time the diaphragm B driven hydraulic pressure generated by the inlet valve ball back to the valve seat, while the outlet valve ball from the valve seat so that the fluid can be squeezed out of the pump body from the outlet. Diaphragm A is pulled back to the central body. This action makes chamber A in a vacuum state, so that by atmospheric pressure, the fluid can be pumped from the inlet manifold to the A-chamber until it fills up. The material is pumped out through horizontal motion of the two diaphragms fixed at both ends of the central shaft. In the left air chamber b of FIG. 1, compressed air is fed so as to move the central axis leftward. The material in the material chamber B is pressed out while the material chamber A sucks in the material. When the center axis moves left to the end of the stroke, the air exchange valve is reversed and the compressed air is fed to the right air chamber a to move the center axis to the right. The material in the material chamber A is pressed out while the material chamber B sucks in the material. This action reciprocating material is continuously inhaled and discharged. â‘ The air chamber A is fed with compressed air, and the central axis is moved leftward together with the left and right diaphragm plates. (Fig. 1) â‘¡ When the center axis moves left to the end of the stroke, it is sensed by the proximity switch C, and the original electrical control of the pump controls the solenoid valve to change direction. (Figure 1) â‘¢ after the solenoid valve to change. The compressed air is fed into the air chamber B and the central shaft and the diaphragm are simultaneously moved to the right. (Fig. 2) â‘£ When the center axis moves rightward to the end of the stroke, it is sensed by the proximity switch D and the original electrical control of the pump is controlled. The solenoid valve is switched back to the state shown in FIG. 1. The above moves back and forth, so that the diaphragm pump continues to move down. (Note) P can be used in addition to the electrical control of a dedicated pump. L. C to control.
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