Air-cooled heat pump should be based on process, water supply and drainage requirements, from the following five aspects to be considered, both the liquid delivery volume, the device head, the nature of the liquid, the pipeline layout and operating conditions, etc. Is about the pump air-cooled heat pump selection and use introduction. Air-cooled heat pump selection and use 1. Effective cavitation margin calculation and the type of suitable pump: chemical properties, mainly refers to the liquid medium chemical corrosion and toxicity, is the selection of heat-conducting oil pump material and the choice of a shaft seal An important basis for the type. 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 relates to the system lift. 2. The lift required for the installation system is another important performance data for pump selection, generally after the lifting of the head to 5% -10% margin selection. 3. 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 tank pressure PZ, altitude, ambient temperature operation is intermittent or continuous, the position of the heat transfer oil pump Fixed or removable. 4. The discharge side of the highest level of liquid and some other data and pipe specifications and their length, material, pipe specifications, quantity, etc., in order to carry out the Department of comb head calculation and NPSH check. Installation piping system conditions refers to the liquid from the height of the liquid to the liquid to the suction side suction side of the lowest level 5. Select the pump to the maximum flow based on both normal flow in the absence of maximum flow, Normal flow of 1.1 times as the maximum flow. The flow rate is one of the important performance data of the heat-conducting oil pump, which is directly related to the production capacity and conveying capacity of the entire plant. Such as the design process can be calculated in the pump normal, minimum, maximum three kinds of flow. Read more: China Building Water Exhibition Pump Valve Tube Fittings Exhibition Water Expo Xiamen Maritime Exhibition Internet + Forum Yiwu Expo Industry Interconnection (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Duanhui (QQ / WeChat:) http://beng.liuti.cn/ (service hotline:)
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