liquid ring vacuum pump Selection

As a device, the liquid ring vacuum pump is also the basis of engineering operation, so whether it works normally will directly affect the progress of the operation, so the choice of equipment is very important. In addition to its own quality, its model also needs to be considered, for everyone to better. The selection of the following, Xiaobian for everyone to put forward a little advice - on the selection of equipment:

1. Flow rate is one of the important performance data of the pump selection, which is directly related to the production capacity and conveying capacity of the entire device. For example, the normal, minimum and maximum flow rates of the pump can be calculated in the design of the design institute. When the pump is selected, the normal flow rate is based on the maximum flow rate. When there is no maximum flow rate, 1.1 times the normal flow rate can be taken as the maximum flow rate.

2. The head required for the liquid ring vacuum pump system is another important performance data of the pump selection. Generally, the head should be selected by amplifying the 5% to 10% balance.

3, liquid properties, including liquid media name, physical properties, chemical properties and other properties, physical properties are temperature c density d, viscosity u, solid particle diameter and gas content in the medium, etc., which involves the lift of the system, effective gas Calculation of the amount of eclipse and the type of suitable pump: chemical properties, mainly refers to the chemical corrosiveness and toxicity of the liquid medium, is an important basis for the selection of the pump material and the type of shaft seal.

4. The pipeline layout conditions of the equipment system refer to the data of the liquid feeding height, the liquid feeding direction, the suction side, the lowest liquid level, the highest liquid level on the discharge side, and other data and pipe specifications and their lengths, materials, pipe fittings specifications and quantities. Etc., in order to carry out the calculation of the combing process and the checking of the NPSH.Rotary-vane-vacuum-pump-in-oil-plant

5. There are many operating conditions, such as liquid operation T saturated steam force P, suction side pressure PS (absolute), discharge side container pressure PZ, altitude, ambient temperature operation is gap or continuous, pump position is fixed Still removable.

That is to say, the selection of the liquid ring vacuum pump should be considered according to the liquid delivery amount, the device head, the liquid property, the pipeline arrangement and the operating and operating conditions, so that the appropriate model can be selected, which not only improves the progress of the project, but also the device itself. Protection can extend its service life, and it is hoped that relevant workers can make the right selection.Rotary-vane-vacuum-pump-in-coal-processing