How does a liquid ring vacuum pump work⁉️
What’s the Main
Pump Components and its Principle of Operations⁉️
#Answer:-
✅ A liquid ring pump is a rotating positive-displacement pump, They are typically
used as a vacuum pump, but can also be used as a gas compressor.
✅ The liquid-ring pump compresses gas by rotating a vaned impeller located
eccentrically within a cylindrical casing.
✅ Liquid
(usually water) is fed into the pump and, by centrifugal acceleration, forms a
moving cylindrical ring against the inside of the casing.
✅ This
liquid ring creates a series of seals in the space between the impeller vanes,
which form compression chambers.
✅ The eccentricity between the impeller's axis of rotation and the casing geometric
axis results in a cyclic variation of the volume enclosed by the vanes and the
ring.
✅ Gas,
often the air is drawn into the pump through an inlet port at the end of the
casing.
✅ The gas
is trapped in the compression chambers formed by the impeller vanes and the
liquid ring. The reduction in volume caused by the impeller rotation compresses
the gas, which reports to the discharge port at the end of the casing.
✅ the
liquid ring performs 2 other important functions:-
1️⃣ It
absorbs the heat generated by compression, friction, and condensation of the
incoming vapor.
2️⃣ It absorbs and washes out any process contaminants entrained in the gas.
2️⃣ It absorbs and washes out any process contaminants entrained in the gas.
✅ A
continuous supply of service liquid is necessary to limit the temperature rise
in the pump caused by the heat of compression, friction, and condensation. Any
excessive rise in temperature will have a detrimental effect on performance,
reducing the capacity and degree of vacuum attainable.
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