General Selection Requirements For Cip Return Pumps

CIP Return Pump The selection basis should be considered from five aspects according to the process flow and water supply and drainage requirements, namely liquid delivery volume, device head, liquid properties, pipeline layout and operating conditions.

1. The flow rate of colloid mill is one of the important performance data for pump selection, which is directly related to the production capacity and delivery capacity of the entire device. For example, the normal, minimum and maximum flow rates of the pump can be calculated in the process design of the design institute. When selecting a pump, the maximum flow rate is based on the normal flow rate. When there is no maximum flow rate, 1.1 times the normal flow rate can usually be taken as the maximum flow rate.
2. The head required by the device system is another important performance data for pump selection. Metering pumps are generally selected by enlarging the head after 5%-10% margin.
3. Liquid properties, including the name of the liquid medium, 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 involve the system head, effective cavitation margin calculation and suitable pump type: chemical properties, mainly refer to the chemical corrosiveness and toxicity of the liquid medium, rotor pump, is an important basis for selecting pump materials and which type of shaft seal to choose.
4. The pipeline layout conditions of the device system refer to the liquid delivery height, liquid delivery distance, liquid delivery direction, the lowest liquid level on the suction side, the highest liquid level on the discharge side and other data and pipeline specifications and their length, materials, pipe fittings specifications, quantity, etc., in order to calculate the system head and check the cavitation margin.
5. There are many contents in the operating conditions, such as the liquid operation T, saturated steam force P, suction side pressure PS (absolute), discharge side container pressure PZ, altitude, ambient temperature, whether the operation is intermittent or continuous, and whether the pump position is fixed or movable screw pump.