Introduction to flow adjustment method and energy consumption of Shijiazhuang horizontal slurry pump

Through the characteristic curve diagram of the slurry pump and pipeline system, several main methods of centrifugal pump flow adjustment are analyzed: outlet valve adjustment, pump variable speed adjustment and pump series and parallel adjustment.
The characteristic curve diagram is used to analyze the energy consumption loss of the two methods of outlet valve adjustment and pump variable speed adjustment, and a comparison is made. It is pointed out that using variable speed to adjust the flow rate of the slurry pump can save better energy consumption than using the outlet valve to adjust the flow rate, and is energy-saving. Efficiency is related to the size of the flow change. In practical applications, attention should be paid to the range of variable speed adjustment so that variable speed adjustment of the slurry pump can be better applied.
The slurry pump is a general fluid machinery widely used in chemical industry systems. It has many advantages such as wide range of performance adaptability (including flow rate, pressure head and adaptability to the properties of the conveyed medium), small size, simple structure, easy operation and low operating cost. Usually, the flow rate and pressure head of the selected slurry pump may be inconsistent with the requirements in the pipeline, or due to changes in production tasks and process requirements, the flow rate of the pump is required to be adjusted, which essentially changes the working point of the centrifugal pump. . The working point of the slurry pump is determined by the characteristic curve of the pump and the characteristic curve of the pipeline system. Therefore, changing either characteristic curve can achieve the purpose of flow adjustment.
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