Double-inlet horizontal split centrifugal pump

A horizontally split, centrifugal pump technology, applied in the field of centrifugal pumps, to achieve the effects of increased flow head, convenient operation, and symmetrical impeller structure

Pending Publication Date: 2022-06-07
虞淞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still room for improvement in the head and flow rate of the split pumps in the existing technology. High head and large flow have always been hot spots in the industry.

Method used

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  • Double-inlet horizontal split centrifugal pump
  • Double-inlet horizontal split centrifugal pump
  • Double-inlet horizontal split centrifugal pump

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Embodiment Construction

[0016] The present invention will be further described below through specific embodiments.

[0017] A double inlet horizontal split centrifugal pump, as attached figure 1 and attached figure 2 As shown, it includes pump body 1 and pump cover 2. The packing gland 3 is used for sealing between the pump body and the pump cover. There is a water suction port at each end of the same side of the pump body, and the water outlet is on the other side of the pump body. It is located in the center of the axial direction. The first-stage double-suction impeller and the secondary impeller are arranged inside the pump. The suction port is connected to the first-stage double-suction impeller, and the first-stage double-suction impeller is connected to the secondary impeller. The first-stage impeller and the secondary impeller are sealed Rings 4 and 5 are fixed, and the two first-stage double-suction impellers are set back to back.

[0018] Among them, double guide vanes 6 and 7 are arrang...

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PUM

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Abstract

The invention discloses a double-inlet horizontal split centrifugal pump which comprises a pump body and a pump cover which are sealed through a packing gland, and is characterized in that a water suction port is formed in each of two ends of the same side of the pump body, a water outlet is formed in the other side of the pump body and located in the axial center, and a first-stage double-suction impeller and a second-stage impeller are arranged in the pump; first-stage double-suction impellers are connected to the water suction openings, then the first-stage double-suction impellers are connected with a second-stage impeller, the first-stage impeller and the second-stage impeller are fixed through a sealing ring, and the two first-stage double-suction impellers are arranged in a back-to-back mode. The centrifugal pump is equivalent to two double-suction pumps which are connected in parallel to work at the same time, and the flow lift can be doubled under the same outer diameter of the double-suction pump impeller; the inlet and the outlet are in the same direction and are perpendicular to the pump shaft, and arrangement and installation of the pump and water inlet and outlet pipes are facilitated; the impeller is symmetrical in structure, free of axial force and stable in operation.

Description

technical field [0001] The invention relates to the field of centrifugal pumps, in particular to a double-inlet horizontal split-type centrifugal pump. Background technique [0002] It is widely used in petroleum, chemical industry, electric power metallurgy, mining, ship selection, light industry, agriculture, civil and national defense departments, and occupies an important role in the national economy. status. The main features of the split pump are that the flow rate of the conveying medium is large, and the working principle of the split pump operation: the impeller is installed in the pump casing and fastened to the pump shaft, and the pump shaft is directly driven by the motor. There is a liquid suction and suction pipe in the center of the pump casing. The liquid enters the pump through the bottom valve and suction pipe. The liquid discharge port on the pump casing is connected with the discharge pipe. When the speed of the pump is constant, its pressure head and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D1/00F04D1/06F04D29/22F04D29/42F04D29/66
CPCF04D1/006F04D1/06F04D29/4273F04D29/4293F04D29/2222F04D29/669
Inventor 虞淞
Owner 虞淞
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