According to the technological process and the requirements of water supply and drainage, the type selection of
heat conducting oil circulating pump should be considered from five aspects, such as liquid transport capacity, device lift, liquid properties, pipeline layout and operating conditions, etc.
Flow rate is one of the important performance data of selective heat oil circulating pump, which is directly related to the production capacity and transportation capacity of the whole unit. For example, the normal, minimum and maximum flow of the pump can be calculated in the process design of the design institute.
When selecting the heat conduction oil circulation pump, the maximum flow rate is taken as the basis and the normal flow rate is taken into account. When there is no maximum flow rate, 1.1 times of the normal flow rate can be taken as the maximum flow rate.
The head required by the device system is another important performance data of the selective thermal oil circulation pump, which is generally selected by magnifying 5%, 10%, or more than 10%.
Liquid properties, including liquid medium name, physical properties, chemical properties and other properties, physical properties include temperature c, density d, viscosity u, solid particle diameter and gas content in the medium, etc., which involves the head of the system, the calculation of effective cavitation margin and the appropriate type of pump:
Chemical property, which mainly refers to the chemical corrosiveness and toxicity of liquid medium, is an important basis for the selection of heat conduction oil circulating pump material and which type of shaft seal.
The pipeline layout condition of the device system refers to some data such as liquid delivery height, liquid delivery distance, suction, such as the lowest liquid level on the side and the highest liquid level on the discharge side, as well as pipe specifications and their length, materials, pipe fitting specifications, quantity, etc., in order to calculate the carding head and check the cavitation margin.
There are many contents about the operating conditions of the heat conduction oil circulation pump, such as liquid operation T saturated steam force P, suction side pressure PS (absolute), discharge side vessel pressure PZ, altitude, whether the ambient temperature operation is clearance or continuous, and whether the position of the heat conduction oil circulation pump is fixed or movable.
