The installation position of the self-priming centrifugal pump should meet the requirement of allowing the vacuum height to be sucked. The foundation must be horizontal and stable to ensure that the direction of rotation of the power machine is consistent with the direction of rotation of the self-priming centrifugal pump. When the self-priming centrifugal pump and the power machine are connected by a shaft, the shaft center should be in the same straight line to prevent vibration and single-sided wear of the bearing when the unit is running. If the belt is driven, the shafts should be parallel to each other. positive. If there are multiple units in the same equipment room, there should be a distance of more than 800mm between the unit and the unit. The suction pipe of the self-priming centrifugal pump must be well sealed, and the elbow and gate valve should be minimized. When the water is filled, the air should be exhausted. During the operation, the air should not accumulate in the pipe. The suction pipe is required to be slightly inclined and self-priming centrifugal pump. The nozzle is connected and the inlet should have a certain depth of inundation. The reserved hole on the basis of the self-priming centrifugal pump should be cast according to the size of the self-priming centrifugal pump.

 

In the case of unsuitable replacement of the new pump and impeller cutting, the non-standard impeller method is used to modify the centrifugal pump, which can achieve the following effects:

 

(1) The rated parameters can be re-determined according to the actual demand, which is limited by the parameters of the original self-priming centrifugal pump;

 

(2) After the transformation, the operating parameters of the new pump can be added to meet the production requirements. The operating efficiency of the self-priming centrifugal pump can be appropriately improved, and the energy saving effect after the transformation is significant;

 

(3) Certain specific properties of self-priming centrifugal pumps can be improved in a targeted manner.

 

In recent years, saiken pumps industry has designed and developed many energy-saving products, which have played a positive role in reducing the energy consumption of pumps. However, in various fields of the national economy, many pumps are in an unreasonable operating condition due to unreasonable selection, low operating efficiency, and a large amount of energy is wasted. Other pumps are not suitable for use because of the unreasonable selection, or the maintenance cost is increased, and the economic benefit is low. It can be seen that the rational selection of pumps is also of great significance for energy conservation.