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Vertical pipeline pump uniform in inlet flow field velocity distribution

A velocity distribution, vertical pipeline technology, applied to the components of pumping devices for elastic fluids, non-variable-capacity pumps, pumps, etc., can solve the problem of large hydraulic loss, large difference in velocity gradient, and uneven velocity distribution. problems, to achieve the effect of stabilizing the liquid flow, improving the uniformity of the flow, and improving the flow conditions

Pending Publication Date: 2021-08-27
XIANGYANG WU ER WU PUMP IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the inlet structures of the traditional pipeline pump pump body are elbow type, the structure is relatively simple, the velocity distribution of the liquid flow in the elbow type flow channel is uneven, the hydraulic loss is large, and the velocity gradient difference around the circumference of the impeller inlet is small. Large, it has a certain influence on the cavitation and efficiency of the pump

Method used

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  • Vertical pipeline pump uniform in inlet flow field velocity distribution
  • Vertical pipeline pump uniform in inlet flow field velocity distribution
  • Vertical pipeline pump uniform in inlet flow field velocity distribution

Examples

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Embodiment

[0021] Such as Figure 1-3 As shown, a vertical pipeline pump with a uniform inlet flow field velocity distribution of the present invention includes a water absorption chamber cavity 6, a water inlet pipe 1 communicating with the lower end of the water absorption chamber cavity 6, and a water absorption chamber. The water outlet pipe 5 connected to the upper side wall of the cavity 6; the connection line between the inlet center of the water inlet pipe 1 and the outlet center of the water outlet pipe 5 is perpendicular to the axis of the water absorption chamber cavity 6; the inlet and outlet of the water inlet pipe 1 The inlets of the pipelines 5 are connected with the cavity 6 of the water absorption chamber in a spiral channel;

[0022] The bottom of the water inlet pipe 1 is provided with a diversion cone 3 structure extending toward the water inlet of the water absorption chamber cavity 6, and the axis of the diversion cone 3 coincides with the axis of the water absorpti...

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Abstract

The invention discloses a vertical pipeline pump uniform in inlet flow field velocity distribution. The vertical pipeline pump comprises a water suction chamber cavity, a water inlet pipeline and a water outlet pipeline. An inlet of the water inlet pipeline and an inlet of the water outlet pipeline both communicate with the water suction chamber cavity in a spiral channel manner. The bottom of the water inlet pipeline is provided with a flow guide cone structure extending towards a water inlet of the water suction chamber cavity. An inlet partition plate vertically extending along the pipeline is arranged in the middle of an inner cavity of the water inlet pipeline, and the tail end of the inlet partition plate is connected with the bottom of the flow guide cone. According to the vertical pipeline pump, the flowing condition of the pump can be improved, inlet flow field velocity distribution is uniform, anti-cavitation performance is improved to a certain degree, the efficiency is improved, and the hydraulic loss is minimum.

Description

technical field [0001] The invention relates to a vertical pipeline pump with uniform velocity distribution of an inlet flow field, which belongs to the field of vertical pipeline pumps for ships. Background technique [0002] Pipeline pump is a kind of single-stage single-suction or multi-stage centrifugal pump. It is of vertical structure. Because the inlet and outlet are on the same line and the center of the shaft are on the same plane, and most of the inlet and outlet diameters are the same, they can be easily installed in The middle of the transportation pipeline is used as a booster delivery pump, which is widely used. Most of the inlet structures of traditional pipeline pumps are elbow type, the structure is relatively simple, the velocity distribution of the liquid flow in the elbow type flow channel is uneven, the hydraulic loss is large, and the velocity gradient difference around the circumference of the impeller inlet is small. It has a certain influence on the...

Claims

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Application Information

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IPC IPC(8): F04D29/00F04D29/66
CPCF04D29/007F04D29/669
Inventor 王乃华李新吴志宏李家虎万仁伟宋寅王小锋惠杨
Owner XIANGYANG WU ER WU PUMP IND
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