Water Ring Vacuum Pump Characteristics

Water ring vacuum pump can transport both gas and liquid. Only in pumping liquid time efficiency is low. When conveying gas, it can also be used as a low-pressure compressor. Its discharge pressure is about 0.1-0.2 MPa. Its exhaust volume ranges from 0.25 to 30 m_per minute. The vacuum degree can reach 70-80%, and 99.5% when it is manufactured well.

When the pumped gas is not suitable for contact with water, the pump can be filled with oil or other liquid medium (often referred to as liquid ring pump). If oil is used as working medium, the first vacuum degree can reach 99.98%, and the second vacuum degree can reach 99.999%.

The greatest advantage of water ring vacuum pump is that it can suck gas containing liquid. In the use of vacuum system, there are a lot of quiet conditions in the inhalation containing cloudy liquid. Even if it contains swallow vapor, it must be liquefied in the compression process, and the general reciprocating pump is not suitable for such suction. Because the liquid is enclosed between the piston and the cylinder head, the existence of the liquid makes the valve and other channels too narrow. The greater the gas resistance, that is, the loss of power. The water ring vacuum pump is originally based on the liquid as the piston, so it is completely harmless to contain liquid in the suction.

This type of pump is in addition to the above. There are also the following advantages

(1) Except for bearings and sealing caps. There are no other mechanical contact parts such as valves and pistons in its air system, so no internal lubrication is required. The utility model has the advantages of simple structure, easy manufacture and maintenance, reliable operation and long service life of the machine.

(2) Because of the high speed, the pump can be directly connected with the motor, so the exhaust is continuous and uniform. · For a certain displacement, it is small, compact and occupies less space.

(3) Because the liquid in operation is circulated internally, it can avoid the heat caused by the discharging of soup and compression of gas, so it is also suitable for the extraction of toxic or explosive gases. Not only can pressure group, acetylene and biogas be used, but also there is no problem if concentrated sulfuric acid is used instead of water for the very difficult gas capture by reciprocating pump.

Water ring vacuum pump has many advantages, so it has been widely used in petroleum and chemical production. The disadvantage is that the efficiency of this kind of pump is very low. It is about 0.3-0.5.

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