Greentech International (Zhangqiu) Co., Ltd.
In so many industries to roots water ring vacuum pump, the key problem of pumping speed is everybody is concerned, there are many factors that can affect the pumping speed, today we discuss by the following processing.
1 water ring vacuum pump and the vacuum chamber, the connection between the tube and can include cold trap valve and so on, based on the assumption that the flow conductivity of between pump and the vacuum chamber for U, the pump must be through the flow guide U to extraction of vacuum chamber, the suction power is limited, the extraction effect of container really meaningful should be net speed of vacuum chamber bleeding point of S0.
2, from vacuum chamber intake pumping gas must pass a flow guide U to be in addition to the vacuum pump, simply by pumping the gas from the vacuum chamber bleeding point to the flow of the pump inlet movement process from high pressure to low pressure, and from the pump inlet is pumped from low pressure to high pressure based on the principle of a extraction is forced to flow.
3, flow guide U very big, that is, through which gas is restricted, so the pump suction capacity will determine the size of its pumping speed, with the pump inlet directly connected to the vacuum chamber is the same.
4, if roots water ring vacuum pump pumping speed is very large, which is relative to the pumping speed of the pump flow guide U are very small, and the pump's actual extraction ability is not determined by its size and determined by gas pumping speed through the ability of flow guide U, conductance value to S0 of net speed of vacuum pump.
5, according to the basic equation of the vacuum can be mathematically to get the results of the two extremes, namely when the flow guide U very big 2 bv water ring vacuum pump pumping speed can be approximately equal to the pumping speed of the pump S, when the pumping speed of the pump S is very big, or the flow guide U very hour, net speed of vacuum chamber S0 approximately equal flow guide U.
Through the analysis of the factors influencing roots water ring vacuum pump pumping speed is mainly pumping speed flow guide, in addition, the use of the device frequency also can have certain effect, hope to have some help to you, all problems can be consulting professional equipment manufacturers, Greentech.