Water Ring Vacuum Pump Working Principle

A liquid ring pump is a rotating positive displacement pump.

Water ring vacuum pump working principle. The liquid is generally water for most of the applications and hence they are also known as water ring water piston or liquid piston rotary pumps and compressors. Through the centrifugal installation of impeller and pump chamber the purpose of suction compression and exhaust is achieved and the vacuum i e. The rotation of the blades in the circular case generates working spaces. The most widely used liquid is water typically used once through and rejected to drain.

They are typically used as a vacuum pump but can also be used as a gas compressor. The impeller is eccentrically installed in the pump body. As shown in the diagram of the working principle of the liquid ring pump the liquid ring pump is composed of impeller pump body suction and exhaust disc liquid ring formed in the inner wall of the pump body suction port exhaust port auxiliary exhaust valve etc. Quite often a cooling water system is also in place so as to dissipate the heat produced during operation.

Water ring vacuum pump working principle. To produce vacuum in a two stage liquid ring vacuum pump a multi blade impeller on a shaft is positioned eccentrically in a cylindrical housing that is partially filled with sealing liquid. As the shaft turns a liquid ring is created by the centrifugal force generated by the rotating impeller. Liquid ring vacuum pumps and compressors are rotary machines.

Before the vacuum of the condenser is established the water ring vacuum pump directly vacuumizes the condenser through the isolation valve at the inlet of the vacuum pump group and the bypass valve of the front air extractor. This force holds the liquid ring against the inner wall of the pumping chamber. Liquid ring vacuum pumps utilize water or other processes compatible liquid as the sealant. Liquid ring vacuum pumps typically use a liquid seal to achieve a vacuum.

Its joint working principle is. Liquid ring vacuum pumps are rotating positive displacement machines providing process vacuum in industrial applications such as chemical electrical power environmental food beverage processing and packaging marine mining oil gas pharmaceutical pulp paper and textiles. 1 impeller 1 eccentric mounted pump body 2 internally when the impeller rotates the water is acted by centrifugal force and forms a rotating water ring on the pump wall. Working principle of water ring vacuum pump water ring vacuum pump is provided with a balanced rotor that is shaped as a cylinder with a hollow hub it is attached to radial blades that rotate freely in a circular casing.

Water ring vacuum pump is cantilever structure as shown in fig. The function of a liquid ring pump is similar to a rotary vane pump with the difference being that the vanes are an integral part of the rotor and churn a rotating ring of liquid to form the compression chamber seal. At this time the air inlet isolation valve of the front air extractor remains closed. In these machines a liquid is made to act as a piston.