Water ring china slurry pump selection

First, determine the type of china slurry pump type mainly required by the working gas , the exhaust gas pressure , or vacuum degree may be. When the pump is working , you need to pay attention to the following two aspects :
1 as required in the high zone , which is running the vacuum degree in the area of ​​critical or critical discharge pressure .
2 Avoid running at near maximum vacuum or maximum discharge pressure . Operation in this area , not only inefficient , but also work very unstable, prone to vibration and noise. For high china slurry pump , the operation in this area , often cavitation will occur , resulting in a clear sign of this phenomenon is the noise and vibration in the pump . Cavitation can cause damage to the pump body, impeller and other parts , so that the pump does not work .
According to this principle , when the required china slurry pump or gas pressure is not high, the priority selected in the single-stage pump. If the vacuum degree or higher discharge pressure , single-stage pumps often can not meet , or require a larger gas pump still under high vacuum conditions , which requires relatively flat performance curve at high vacuum, choice of two pump. If the vacuum required in -710mmHg or more, optional water ring - big air pump or water ring - Roots vacuum unit as vacuum devices.
If only for the china slurry pumps available, the selection of a single acting pump better. Because the structure of single-acting pump is simple, easy to manufacture and maintain , and the circumstances under high vacuum cavitation resistance. If only large gas compressor for use , then use double-acting pump more appropriate. Because the double-acting pump gas , small size , light weight, radial force to get automatic balance shaft is not prone to fatigue fracture , longer pump life.
Second, the system needed to choose the gas pump , according to preliminary selected type pump after the pump , but also according to the gas required for the system to use the pump models. About china slurry pumping speed selection and extraction time can be calculated by reference : Vacuum formula.

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