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Screw centrifugal pump

A centrifugal pump and screw type technology, applied in the field of submersible electric pumps, can solve the problems of high mechanical failure rate, blockage of inlet and outlet, etc., and achieve the effects of high power strength, low cost, and not easy to slip angle.

Inactive Publication Date: 2016-02-10
AOTE TIANJIN PUMP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a screw type centrifugal pump to solve the problems of inlet and outlet blockage and high mechanical failure rate in the above background technology

Method used

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  • Screw centrifugal pump

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Embodiment

[0018] Such as figure 1 As shown, this embodiment includes a motor shaft 1, a helical impeller 2, a helical blade 3, a pump cover 4, a pump casing 5, a first screw 6, a first bolt 7 and a second bolt 8, and the helical impeller 2 passes through the first screw 6 Fix it on the end of the motor shaft 1, the first screw 6 is a hexagon socket head screw, the lower end of the helical impeller 2 is provided with a helical blade 3, the motor shaft 1 on the upper part of the helical impeller 2 is installed with a pump cover 4, and the motor connected to the pump cover 4 A moving ring 9 is arranged on the shaft 1, and a static ring 10 is arranged outside the moving ring 9. The static ring 10 is fixed on the pump cover 4, and the pump casing 5 is arranged at the lower part of the pump cover 4. The left and right sides of the pump cover 4 and the pump casing 5 Fix by the first bolt 7 and the second bolt 8 respectively, the first bolt 7 and the second bolt 8 are all hexagonal bolts, the f...

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Abstract

The invention belongs to the technical field of submersible electric pumps and particularly relates to a screw centrifugal pump. The screw centrifugal pump comprises a motor shaft, a screw impeller, a screw blade, a pump cover, a pump case, a first screw, a first bolt and a second bolt. The screw impeller is fixed to the tail end of the motor shaft through the first screw, the screw blade is arranged at the lower end of the screw impeller, the pump cover is installed on the portion, on the upper portion of the screw impeller, of the motor shaft, the pump case is arranged on the lower portion of the pump cover, the left side of the pump cover and the left side of the pump case are fixed through the first bolt, the right side of the pump cover and the right side of the pump case are fixed through the second bolt, the screw impeller and the screw blade are covered with the pump case, a water inlet is formed in the lower side of the pump case, and a water outlet is formed in the right rear upper side of the pump case. The screw centrifugal pump is free of blockage at the inlet and the outlet and low in mechanical failure rate.

Description

technical field [0001] The invention belongs to the technical field of submersible electric pumps, in particular to a spiral centrifugal pump. Background technique [0002] The screw centrifugal pump works by rotating the impeller to generate centrifugal force in the water. It is a new type of pump that transports relatively large solid substances in water. Screw centrifugal pumps are mainly divided into single-stage screw centrifugal pumps and multi-stage screw centrifugal pumps. There is only one impeller in a single-stage screw centrifugal pump, and the head is low because the liquid only increases energy once in the pump; Type centrifugal pumps have two or more impellers, the more stages, the higher the pressure. At present, the single-stage screw centrifugal pumps on the market are widely used in various occasions, but the single-stage screw centrifugal pumps in the prior art mainly include a pump body, a pump cover, an impeller and a motor. In practical applications, ...

Claims

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Application Information

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IPC IPC(8): F04D13/06F04D7/04F04D29/12F04D29/62
Inventor 陈书民魏永胜董海涛
Owner AOTE TIANJIN PUMP
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