离心泵的选用 |
| 离心泵的选用 Centrifugal Pump Selection (1) 根据被输送液体的性质及操作条件确定类型； (1) According to the liquid is transferred to determine the nature and type of operating conditions; (2) 根据流量(一般由生产任务定)及计算管路中所需压头，确定泵的型号(从样本或产品目录中选取)； (2) The flow rate (usually by the production task may be) and the calculation of the pipeline pressure head needed to determine the pump model (from a sample or product catalog, select); (3) 若被输送液体的粘度和密度与水相差较大时， 应核算泵的特性参数：流量、压头和轴功率。 (3) If the transport of liquid viscosity and density difference between the larger and water, shall account for the pump parameters: flow, pressure head and shaft power. 选择离心泵时，可能有几种型号的泵同时满足在范围内操作这一要求，此时，可分别确定各泵的工作点，比较工作点上的效率，择优选取。 Select centrifugal pump may have several types of pumps while meeting at the best operating within the scope of this request, this time, respectively ascertain the pump operating point, compare the efficiency of operating points, merit-based selection. |