Optimization of the Number of Multiple Pumps Running Simultaneously in Open Cycle Cooling Water System in Power Plant

At present, in a considerable number of enterprises and the second and third class cities which adopt small and medium-sized heat-supply unit of extraction and condensing consisting of a power station for heat needs are still quite a few. As a result of the cooling water system adopts piping-main scheme circulating, the running methods of circulating pumps will directly affect the energy consumption of it. This article will take 2Â¥50MW heat-supply unit of extraction and condensing and four “32Sh-19”-type centrifugal pumps and the natural rivers for cooling water-circulating cooling water system for example, make an economic analysis of pump which has smallest energy consumption in variable condition, and correct man's wrong habit that the less the number of pumps running in any condition the better by research results. Also it provides the reference frame to the enterprise of cogeneration with similar conditions for optimized operation.