"Pipeline circulation pump" is a single suction single stage centrifugal pump, belongs to a column pump, others also have vertical multistage pump, column multistage pump. The pipeline circulating pump has the characteristics of coaxial output transmission data, easy installation, environmental protection and energy saving motor. After mastering the characteristics of the pipeline circulation pump, there is no doubt that the curiosity of the pipeline circulation pump should be how to choose the model, and the following is the 5-level method for everyone to share the pipeline circulation pump model.

(1) According to the pump head of the sewage treatment plant design scheme, several types of pipeline circulation pumps with different total flow rates are selected from the comprehensive spectrum diagram of pipeline circulation pumps or the characteristic table of the pipeline circulation pump commercial sample. The pump head of the selected pipeline circulating pump design scheme is consistent with or close to the pump head of the sewage treatment plant design scheme. But total traffic is likely to be slightly different.

(2) According to the total flow rate of the sewage treatment plant design scheme and the total flow rate of the selected single pump, clarify the number of pipeline centrifugal pumps of different pump types, and ensure that they meet the requirements. Drawing the flow process line of tap water or drainage pipeline design scheme in irrigation area, linear fitting is carried out between the total flow process line of sewage treatment plant when the selected pipeline circulating pumps operate in different numbers and the total flow process line of irrigation and drainage design scheme to check whether the requirements of irrigation and drainage flow transformation can be achieved. If the linear fitting total flow process line is close to the flow plate process line of the irrigation and drainage design scheme, it indicates the number of selected pump types; It can basically be incorporated into the watering regulations. Within the permissible range of watering, the total flow process line of the design scheme can be appropriately modified to make the two conform.

(3) According to the type and quantity of the first review of the pump. Equipped with pipes and accessories, and draw the pipeline characteristics curve, find the working midpoint of the pipeline circulating pump, and clarify the installation elevation of the pipeline circulating pump.

(4) Select the engine and auxiliary machinery and equipment, and formulate the structural form and layout method of the water pump room.

(5) According to the selected pipeline circulation pump model specifications and the characteristics of supporting facilities machinery and equipment, in accordance with the technical standards of economic development, the effective carry-over of capital construction costs and operating costs, to clarify the type and quantity of effective pumps.

Pipeline circulation pump three outstanding advantages:

1, coaxial output transmission data: the centrifugal impeller is immediately connected with the motor shaft, environmental protection, energy saving, low noise, can balance the axial and radial load caused by the pump operation.

2, simple installation: the same access specifications, located in the same straight line, simple structure. Easy maintenance, in the maintenance of centrifugal impeller and sealing parts, no need to disassemble the pipeline.

3, environmental protection and energy-saving motor: secondary energy efficiency, energy saving, optional explosion-proof fan, high temperature corrosion resistance, long life