Tag: water ring vacuum pump

A pump is a machine that transports or pressurises a fluid, mainly used to transport water, oil, slurries, acid and alkali liquids, emulsions, suspensions, gas mixtures and liquid metals, etc. It is a common conveying equipment in the mining, chemical and metallurgical industries. This blog focuses on comparing the difference between water ring vacuum pumps and rotary vane vacuum pumps.

The working principle of water ring vacuum pump is to use water as the sealing medium to generate vacuum by rotating the water ring. Specifically, the main parts of water ring vacuum pump include pump body, water ring, impeller, inlet and outlet. When the water ring in the pump body rotates, a closed space is formed between the water ring and the pump body, and the gas at the inlet port is sucked into the inside of the water ring, and with the rotation of the water ring, the gas is compressed and discharged from the pump body. Due to the fast rotation speed of the water ring, the residence time of the gas inside the water ring is very short, so the water ring vacuum pump can produce a high vacuum degree.

The water ring vacuum pump is equipped with an eccentric rotor with fixed vanes, which is a rotary variable volume vacuum pump that throws water (liquid) to the stator wall, the water (liquid) forms a liquid ring concentric with the stator, and the liquid ring and the rotor vanes together constitute a variable volume.