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Two-way through flow/axial flow pump

An axial flow pump and pump body technology, applied in the field of two-way water supply in pumping stations, can solve problems such as the appearance of guide vanes

Active Publication Date: 2004-12-15
HUAZHONG UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The invention proposes a two-way perforated / axial flow pump, which uses semi-movable guide vanes at both ends of the impeller to solve the problem of the guide vanes when the impeller runs in reverse, so as to facilitate the two-way water supply of the pump station

Method used

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  • Two-way through flow/axial flow pump
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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Figure 5 Represents the semi-movable guide vane of the present invention, which includes a guide vane fixed part 5 and a guide vane rotatable part 6, the guide vane fixed part is cast or welded with the inner and outer casings or integrated, the guide vane rotatable part is separate, and its end The portion has a rotating shaft 7.

[0032] Figure 6 In the bidirectional axial flow pump shown, the impeller 1 in the pump body 3 is equipped with front and rear guide vanes respectively in the front and back axial directions, and they are evenly arranged in the radial direction, and each front guide vane and rear guide vane are composed of Figure 5 The shown semi-movable guide vane is formed, and the rotating shaft 7 at the end protrudes from the pump body 3 and can be connected with the guide vane rotating mechanism.

[0033] Figure 7 A guide vane rotation me...

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PUM

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Abstract

The present invention relates to two-way through flow / axial flow pump, and aims at solving the problem of guide vane in counter direction operation of the vane wheel to facilitate the two-way water supply. The two-way through flow / axial flow pump of the present invention has radially homogeneously distributed front guide vanes and back guide vanes in front part and back part of the vane wheel shaft separately. Each of guide vanes is semi-movable and consists of fixed part and rotatable part, the fixed part is connected to the pump body via casting or welding, and the rotatable part is connected to the guide rotating mechanism outside the pump body and hinged to the fixed part. The present invention is suitable for two-way water supply in various pump stations.

Description

technical field [0001] The invention belongs to the category of tubular flow pumps or axial flow pumps, and is especially used for two-way water supply in pumping stations. Background technique [0002] Tubular flow pumps and axial flow pumps are both large flow and low head pumps, and their basic components are as follows: figure 1 and figure 2 shown. [0003] figure 1 It is an axial flow pump, and its main components are impeller 1 and guide vane 2. Both the impeller and guide vanes are arranged in a pump body 3 similar to a circular tube. Water flows in from the inlet on the right in the figure, and passes through the impeller and guide vane in turn. It then exits through an elbow. The elbow is used to extend the shaft out of the pump so as to be connected to the motor (the motor is not shown in the figure). But the elbow itself is detrimental to the flow in the pump. [0004] The tubular flow pump cancels the elbow in the axial flow pump, and arranges the motor ...

Claims

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Application Information

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IPC IPC(8): F04D3/00F04D29/00F04D29/24F04D29/54
Inventor 张克危陈斌刘甲凡
Owner HUAZHONG UNIV OF SCI & TECH
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