A horizontal split multistage pump capable of transporting multiphase flow media

A horizontally split, multi-phase flow technology, used in non-variable volume pumps, non-displacement pumps, radial flow pumps, etc., to achieve the effect of good passing performance, wide adaptability and flat lift curve

Active Publication Date: 2016-05-04
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the development of petroleum, chemical and other industries, especially when transporting high-viscosity media over long distances, carrying a large amount of gas, media containing high-concentration solid phase particles, and media that are sensitive to shear force, etc., At present, the existing centrifugal pumps are still unable to meet the requirements, so it is urgent to develop a multi-phase flow multi-stage pump capable of long distance, anti-cavitation, high efficiency and high reliability to meet the demand

Method used

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  • A horizontal split multistage pump capable of transporting multiphase flow media
  • A horizontal split multistage pump capable of transporting multiphase flow media
  • A horizontal split multistage pump capable of transporting multiphase flow media

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] refer to figure 1 It is a schematic diagram of a preferred embodiment of a horizontal split multistage pump. It can be seen from the figure that when the multistage pump is working normally, the motor drives the pump main shaft 11 to rotate at a high speed, and the multiphase flow medium enters the first stage impeller from the inlet 1 of the multistage pump. In the volute 2, driven by the high-speed rotation of the impeller 8, the multiphase flow medium enters the inlet 9 of the second-stage water absorption chamber through the first-stage outlet 7, and further enters the interior of the volute 5 of the second-stage impeller. Driven by the high-speed rotation, the head of the conveying medium is further increased, and further enters the third-stage impeller volute 3, and is further discharged through the third-stage discharge port 4.

[0017] W...

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Abstract

A horizontal central-open multistage pump capable of conveying multiphase flow media comprises a pump body, a pump cover, a pump spindle, a transition runner composed of a pump body and a pump cover, a water suction chamber, an impeller of a special structure and the like. No real blade is arranged between a driving impeller cover plate and a driven impeller cover plate, waves of special types are peripherally processed to be positioned between the driving impeller cover plate and the driven impeller cover plate, the waves are sine waves or cosine waves, and the driving impeller cover plate and the driven impeller cover plate are connected through connection arms. The horizontal central-open multistage pump is applied to long distance transporting multiphase flow medium places containing high viscosity media, media carrying a lot of gas, media containing high concentration solid phase particles, and media sensitive to shear force and the like and has the advantages of being anti-cavitation, abrasion-resistant, efficient, reliable, convenient to dismount, small in loss of water power, little in installation error and the like.

Description

technical field [0001] The invention relates to the field of fluid conveying machinery, in particular to a horizontal split multistage pump capable of efficiently and reliably conveying multiphase flow media. Background technique [0002] At present, there are mainly two structural forms of multistage centrifugal pumps, namely horizontal split multistage centrifugal pumps and segmental multistage centrifugal pumps. Among them, the horizontal split multistage pump has the advantages of convenient disassembly, high efficiency of conveying medium, small hydraulic loss and small assembly error in conveying fluid medium, and is widely used in the occasion of conveying clean water medium without solid phase particles. However, with the development of petroleum, chemical and other industries, especially when transporting high-viscosity media over long distances, carrying a large amount of gas, media containing high-concentration solid phase particles, and media that are sensitive t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D1/06F04D29/44F04D29/42F04D29/22
Inventor 陈国明陈永超尹树孟徐长航周昌静吕涛
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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