Lateral inlet pump station model test rectification method

A model test and pumping station technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as deterioration of pump water absorption conditions, vibration of pump room and unit, and decrease in efficiency of water pump devices, so as to improve reliability and economy, reduce sediment deposition, and improve operational performance

Inactive Publication Date: 2018-10-09
HOHAI UNIV
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Problems solved by technology

Actual test observations and later theoretical studies have proved that poor forebay water flow in the forebay produces backflow, vortex, influent water flow disorder, worsening water absorption conditions of the pump, resulting in a decrease in the efficiency of the pump device, resulting in vibration of the pump room and the unit, and in severe cases may cause Difficulty in starting pump, cavitation, vibration and noise, etc.

Method used

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  • Lateral inlet pump station model test rectification method
  • Lateral inlet pump station model test rectification method
  • Lateral inlet pump station model test rectification method

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Embodiment Construction

[0030] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention but not to limit the scope of the present invention.

[0031] The model test rectification method of the lateral inflow pumping station includes the following steps:

[0032] Step 1: Set up the rectification scheme for the forebay of the lateral inflow pumping station.

[0033] "T"-shaped diversion pier, the top elevation of "T"-shaped diversion pier is equal to the lowest water level. The side length is 10cm (2.5m). The angles of each side of the diversion pier are rounded.

[0034] Step 2: Build a physical model according to the setup scheme.

[0035] The scope of the forebay flow model includes the diversion river, the forebay, the water inlet pond and the water inlet pipe (including the trumpet pipe). The upstream boundary of...

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Abstract

The invention discloses a lateral inlet pump station model test rectification method. The method comprises the steps of 1: setting lateral inlet pump station forebay regulation measures; 2: building aphysical model according to a set scheme; 3: building a mathematic model according to the set scheme and performing calculation; 4: performing comparative analysis on a physical model calculation result and a mathematic model calculation result; and 5: comprehensively analyzing a scheme calculation result to obtain an optimal lateral pump station forebay regulation scheme. The improvement of a water inlet flow condition of a pump station can effectively improve the running performance of a water pump, reduce the sediment accumulation, improve the running reliability and economy of the pump station, reduce the cost and increase the benefits.

Description

technical field [0001] The invention relates to a rectification method for a model test of a lateral inflow pumping station, belonging to the technical field of water conservancy simulation tests. Background technique [0002] The water inlet forebay of the pumping station is an important hydraulic structure that reasonably connects the channel and the water inlet flow channel. There are two main types: the forward water inlet forebay and the side water inlet forebay. The flow state in the forebay should meet the hydraulic conditions such as uniform flow velocity distribution, smooth water flow, and no eddy current in the pool, so that the water flow can enter the water inlet channel in a good flow state, thereby providing good water inlet conditions for the pump. Actual test observations and later theoretical studies have proved that poor forebay water flow in the forebay produces backflow, vortex, influent water flow disorder, worsening water absorption conditions of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 宋为威逄勇宋达昊傅星乾
Owner HOHAI UNIV
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