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Annular water absorbing chamber of vertical pipeline pump

A technology of vertical pipelines and water absorption chambers, applied in the direction of non-variable pumps, pumps, pump components, etc., can solve problems such as vortex loss, achieve the effect of eliminating vortex loss and improving hydraulic efficiency

Inactive Publication Date: 2012-04-11
西安航天泵业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a vertical pipeline pump annular suction chamber using a flow-type partition, which solves the technical problem of eddy loss in the existing vertical pipeline pump suction chamber due to the use of straight partitions

Method used

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  • Annular water absorbing chamber of vertical pipeline pump
  • Annular water absorbing chamber of vertical pipeline pump
  • Annular water absorbing chamber of vertical pipeline pump

Examples

Experimental program
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Embodiment Construction

[0017] Such as Figure 4 and Figure 5 As shown, the annular water suction chamber of the vertical pipeline pump of the present invention includes a water suction chamber 4 and a dividing plate 5 . The partition 5 comprises a partition top 12 and a partition transition section 13 positioned on both sides of the partition top; The cone angle A=30-40°; the transition section of the partition is an arc surface respectively connecting the side walls on both sides of the water absorption chamber and the top of the partition, the arc radius R=45-60, and the optimal radius is 50. The water inlet of the water-absorbing chamber 4 is provided with a water-dividing tongue 1, and the water flow is divided into left and right two ways by the water-dividing tongue to enter the annular water-absorbing chamber, and then turn 90° after being guided by the partition to flow out from the water outlet 2 of the annular water-absorbing chamber, and enter The impeller inlet 10 facing the water out...

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PUM

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Abstract

The invention relates to an annular water absorbing chamber of a vertical pipeline pump. The annular water absorbing chamber comprises a water absorbing chamber and a clapboard, wherein a water outlet of the water absorbing chamber is arranged over against with an inlet of an impeller; the clapboard consists of a clapboard top and clapboard transition sections placed at two sides of the clapboard top; the clapboard top is a tapered top corresponding to the stream direction; and the clapboard transition sections are arc faces which are respectively connected with sidewalls at two sides of the water absorbing chamber and the clapboard top. The annular water absorbing chamber provided by the invention solves the technical problem of vortex loss caused by the adoption of a straight clapboard in the traditional water absorbing chamber of the vertical pipeline pump, thus hydraulic efficiency is increased.

Description

technical field [0001] The invention relates to a water absorption chamber structure of a vertical pipeline pump. Background technique [0002] In vertical pipeline pumps, the suction chamber usually adopts an annular suction chamber, such as figure 1 and figure 2 As shown, the liquid flow enters the annular space in the form of sudden expansion, and then turns 90° in the form of contraction, and enters the impeller axially. Therefore, the upper half enters the impeller faster than the lower half. As the bottom half of the liquid pools from the sides to the middle, a rotational motion occurs. Therefore, the distribution of water velocity in the annular water-absorbing chamber is uneven. [0003] In order to prevent the lower half of the liquid from colliding from both sides to the middle, generally a straight partition with a width of H = 6 to 10 is installed in the lower part of the annular water suction chamber, such as image 3 shown. However, when the suction cham...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42
Inventor 曾伟杨延广胡钟兵宋怀德张伟马文瑛金建树杨永平
Owner 西安航天泵业有限公司