A general-purpose well pump with high efficiency and high head

Abstract

The invention provides a high-efficiency, high-lift universal well pump and relates to the technical field of centrifugal submersible pumps. It mainly includes a guide casing, a pump shaft and an impeller. The impeller includes long blades, a rear cover and a front cover with a water inlet in the middle. The impeller is provided with short blades. The short blades are located at the outer edge of the impeller and adjacent to the Between the two long leaves; the long or short leaves are twisted. The invention fully excavates and improves the potential of the pump, greatly increases the single-stage head of the pump, and at the same time improves performance indicators such as the efficiency of the pump, so that the pump can save a lot of materials and double the output, and the cost can be greatly reduced. Increased 5 times profit and high efficiency and energy saving; the pump has widened the scope of application and has good versatility, and one hydraulic model can be used for several pumps; the total head series of the pump is greatly reduced and the length of the pump shaft is shortened, and the operation of the pump is more efficient. Stable, reliable, long life, smaller size, lighter weight, more convenient for production, sales, transportation, installation and maintenance.

Description

technical field [0001] The invention relates to the technical field of centrifugal submersible pumps, in particular to the innovation and improvement of the design of high-efficiency and high-lift universal centrifugal submersible single-stage and multi-stage well pumps. Background technique [0002] At present, the impeller blades of well pumps produced by manufacturers are generally long blades, whether they are arc-shaped blades (see attached Figure 6 ) or twisted blades (see attached figure 2 ), the number of blades is generally 4 to 7 pieces, the single-stage head of the pump is low, and the high-efficiency zone is narrow. There is a lot of potential to be tapped and needs to be further innovated and improved. Effectively improving the performance index of the well pump has been a hot topic to be solved in this industry for a long time, because the improvement of the performance index will bring significant economic benefits nationwide. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0002] At present, the impeller blades of well pumps produced by manufacturers are generally long blades, whether they are arc-shaped blades (see attached Image 6 ) or twisted blades (see attached figure 2 ), the number of blades is generally 4 to 7, the single-stage head of the pump is low, and the high-efficiency zone is narrow. There is a lot of potential to be tapped and needs to be further innovated and improved

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