Application of Vacuum Tube in Pump Water Diversion System

In the water pump vacuum diversion system, the vacuum buffer structure adopts a gradual change in cross-sectional area (reducing diameter) and the liquid level detection chamber is shared and cooperated with the porous retaining plate structure. The lower end of the cylindrical whole structure is a vacuum inlet, and the vacuum tube enters the buffer device through the inverted-tapered gradient cavity, and the cross-cone inlet is provided with a transverse diaphragm for blocking the water flow, and a water-gas mixed fluid that is acted by vacuum and atmospheric pressure difference. As it enters the buffer, it overflows from the circumference of the diaphragm, reducing the flow rate and releasing a part of the air.

When the water passes through the orifice plate arranged behind the baffle, the flow rate becomes slower due to the further enlargement of the cross-sectional area. At the same time, all the air in the air-water mixing flow is precipitated; after buffering the two baffles, The air in the air-water mixed fluid that passes through the vacuum pipe is all separated from the orifice of the orifice plate and discharged to the top of the buffer device.

When water enters the pump body at the beginning, there is little water and more water in the mixed flow of water and gas. The gas passing through the buffer device is taken away by the vacuum circuit at the top of the buffer zone, and a small amount of water accumulates at the bottom of the buffer device, achieving effective water vapor. Separated.

When there is more and more water in the pump body, the amount of water entering the buffer device is less, and after continuous air-water separation, the buffer device accumulates more and more water, and the water level in the buffer device rises steadily. When the vacuum tube is started, there are many bubbles, but during the passage through the buffer device, the bubbles are all precipitated, and the liquid level is gradually stabilized by the instability. When the liquid level rises to a uniform speed, the vacuum tube is completed. A vacuum is applied and the pump body is filled with water. When the liquid level reaches the set threshold, the control system can start the water pump, and close the corresponding water pump vacuum circuit electric valve, stop the vacuum pump, open the buffer device lower drain electric valve, empty the buffer device water, and then close the electric valve , prepare for the next pump vacuum.