Lack of water ring vacuum pump compression and compression solution _

in the chemical industry, pharmaceutical, oil and other industrial practice, due to the particularity of operation, the corrosion resistance of the water ring vacuum water pump is usually required. Water ring vacuum pump in operation in the process of compression and under-voltage phenomenon and what is the solution?

1。 Water ring vacuum pump phenomenon:

( 1) 。 A compression phenomenon:

closed small cavity not to vent, internal gas exhaust pressure ( Usually occurs in large water pump, when a high inspiratory pressure is easy to happen) 。

( 2) Compression:

closed chamber is connected to the outlet, but internal gas exhaust pressure ( Usually occurs when the inspiratory pressure low) 。

the above phenomenon is associated with the change of inspiratory pressure, and the two positions of the pump ( Compression ratio) Is fixed.

2。 Problems:

more power consumption ( Waste of energy) , reduce the pumping efficiency.

3。 The method to solve the problem:

( 1) Set the rubber ball valve in front of the vent: when the gases in the small room early to reach the exhaust pressure, ball valve to open.

( 2) The exhaust valve flexible design, to avoid excessive compression. Flexible exhaust valve by automatically adjusting the exhaust area to reduce the energy consumption of the pump. Achieve the desired operational efficiency.

( 3) Water ring vacuum pumps are determined during the design of compression ratio ( Vent position) With zui low suction pressure ( Extreme pressure) 。

compression ratio = p a/p = V into the a/V

design: p - Take extreme pressure

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