The circulating fluid pump used for conveying reaction, absorption, separation, and regeneration of the absorbing fluid in the device refers to the circulating water pump. The flow rate of the pump is medium. Under stable working conditions, the flow rate of the pump changes relatively little. In addition, the circulating water pump also has the characteristics of small and low head.

The circulating water pump mainly deals with water, so the hydraulic factor is a factor that the circulating water pump has to consider. The following are some hydraulic requirements of the circulating water pump for everyone.

The flow channel of the circulating water pump is relatively wide, so in order to allow large particles to pass smoothly, the flow capacity of the circulating water pump is required to be strong enough; in order to prevent the occurrence of solid precipitation and blockage of the flow channel, the flow speed of the slurry in the flow channel of the circulating water pump The settling speed should be considered; under normal circumstances, the impellers of the circulating water pump are cylindrical blades, and the impellers have front and rear back blades, which play a role in reducing leakage and balancing the axial force; the flow characteristics of the slurry should be specially considered. Designed as a concave arc outlet, which is mainly for the pump impeller outlet and the volute outlet section for heavy abrasion.

A good grasp of the hydraulic characteristics of the circulating water pump is of great help to its normal work. Therefore, the operator should have sufficient understanding of it.