Three screw pump selection points what?

With the development of production technology, triple screw pump is widely used in heating equipment, machinery industry, chemical petrochemical industry and food industry, and its role in production has become increasingly prominent. A good three-screw pump can improve production efficiency, boost production, save costs, otherwise impede the production, increase costs. Therefore, from the full list of three-screw pump products to choose a suitable three-screw pump is particularly important today Xiaobian to share on this three-screw pump on the selection of the main points. Three screw pump selection points what? Point one: Select the pump speed 1, the transmission medium viscosity and pump specifications to determine the speed range: When transporting high viscosity medium, the pump should be selected low speed, if the viscosity is low, the corresponding high speed can be selected; 2, Lubrication is relatively poor or contains trace impurities, should choose a lower speed, so that the pump to maintain a longer life, recommended below 1450rpm; points two, according to the installation and use of the pump reference to the three screw pump series and type to 2.1 Transport lubricating oil, the temperature below 80 ° C select the built-in bearing structure of the pump; 2.2 When the temperature exceeds 80 ° C or poor lubrication of the transmission medium, select the external bearing structure of the pump; 2.3 conveying poor mobility, high viscosity medium Or need to be transported when the medium is heated or heat insulation double pump structure to choose the pump; Point three matching motor matching pump selection is determined, according to the sample data can be found pump shaft power N, the shaft power Coupled with a certain power reserve, as a basis for matching the motor, the general motor power Nm should not be less than the pump shaft power N multiplied by the power reserve coefficient K value, K value can be referred to Value: N (KW) N50 K1.251.21.151.1 In addition, to know this knowledge, three screw pump flow, pressure in the same speed, viscosity is approximately linear relationship, the higher the pressure, the smaller the flow; the same viscosity, pressure Under the pump flow and speed is approximately proportional to the same speed, viscosity, shaft power and pressure is approximately proportional to. This article belongs to Industrial Internet (Xiamen) Technology Co., Ltd. All are welcome to reprint, please indicate the author and source. Author: Asian pumps Network Editor: Yue Lijuan (QQ / micro letter:) starting: http: //beng.liuti.cn/ (service hotline:)

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