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Influence of salt-out liquid-solid two phase flow on chemical pump performance |
LIU Dong, YANG Min-guan, DONG Xiang, WANG Qun |
School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China |
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Abstract In order to solve the salt-out problem which is common in the bittern transferring process,and reduce the clogging problem in the chemical pump which will deteriorate the daily production,sodium sulfate which commonly exists in bittern is used as solute,the delay times under different flow rates and temperatures are measured,and the relations among delay time,flow rates and temperature are studied.The results of the experiment indicate that the delay time becomes shorter as initial temperature decreases.For the flow rate below 1 m/s,the delay time increases with the increase of flow rate.However for the flow rate exceeding 1 m/s,the delay time does not change obviously.Performances of chemical pump under different salt-out processes are also studied;relations among time,head and power are analyzed.The results are proved by the theories of crystal growth kinetics and two-phase hydrodynamics.
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Received: 08 August 2013
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