High temperature pump selection methods?

High-temperature oil pump is an ideal hot oil circulating pump or as a heat transfer pump, heat exchange equipment is the ideal matching pump. Heat pump structure is reasonable, excellent performance, reliable use. Suitable for conveying high temperature liquids without solid particles. So high-temperature pump selection methods are what? First, the installation system required lift is another important performance pump election performance data, generally to enlarge the 5% -10% head lift to choose. Second, the liquid properties, including the name of the liquid medium, physical properties, chemical properties and other properties, the physical properties of temperature c density d, viscosity u, medium particle diameter and gas content, etc., which involves the system lift, effective gas Erosion margin calculation and type of suitable pump: Chemical nature, mainly refers to the liquid medium of chemical corrosion and toxicity, is the choice of high temperature heat pump material and the choice of an important basis for the type of shaft seal. Third, the flow rate is one of the important performance data of the selected heat-conducting oil pump, which is directly related to the entire plant's production capacity and delivery capacity. Such as the design process can be calculated in the pump normal, minimum, maximum three kinds of flow. Select the pump, based on the maximum flow, taking into account the normal flow, in the absence of maximum flow, usually desirable 1.1 times the normal flow as the maximum flow. Fourth, the operating conditions are many, such as the operation of the liquid T saturated steam P, suction side pressure PS (absolute), the discharge side of the container pressure PZ, altitude, ambient temperature operation is the gap or continuous, high temperature heat transfer oil pump position Is fixed or removable? Fifth, the installation of piping system conditions refers to the liquid from the height of the liquid into the liquid distance to the suction side, such as the lowest level, the highest level of the discharge side of some data and pipe specifications and the length, material, pipe specifications, the number , Etc., in order to carry on the system head calculation and the check of the cavitation allowance.