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Quantitative comparison and selection method of large-scale low-lift pump device types

A low-lift pump and pump device technology, which is applied to the components, pumps, and pump components of pumping devices for elastic fluids, can solve the problem of improving construction and management levels, affecting the design of pumping stations, and difficult to select the type of pump device. And other issues

Active Publication Date: 2016-04-27
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The comparison and selection of the existing low-lift pump device types adopts a relatively simple qualitative method, and the comparison and selection process has a large subjective arbitrariness, so it is difficult to select the most reasonable pump device type, which affects the design, construction and management level of the pumping station improvement

Method used

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  • Quantitative comparison and selection method of large-scale low-lift pump device types
  • Quantitative comparison and selection method of large-scale low-lift pump device types
  • Quantitative comparison and selection method of large-scale low-lift pump device types

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0073] The design head of a large low-lift pumping station is H=2.5m, and the design flow rate of a single pump is Q=33.5m 3 / s, the annual average operating time T=5000h, the minimum operating water level of the inlet pool is The minimum operating water level of the outlet pool

[0074] The steps of applying the present invention to carry out quantitative comparison and selection of pump device types for the pump station are as follows:

[0075] (1) According to the design parameters of the pumping station: design lift H=2.5m, single pump design flow Q=33.5m 3 / s, the conventional method is used to select the water pumps for the 8 types of pump devices, and the selection results are listed in Table 4;

[0076] (2) The schemes of the 8 types of pump devices are arranged in sequence, and the results are shown in figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 and Figure 8 ;

[0077] (3) The relevant parameters of cavitation performa...

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Abstract

The invention discloses a quantification comparison and selection method of types of large low-head pump devices and belongs to the field of hydraulic engineering pumping station technology. The method is characterized in that a comparison and selection problem is divided into a pump device aspect and a pump station aspect; according to basic characteristics of 8 types of low-head pump device, 6 items of evaluation indexes are provided; according to research results of many years for low-head pump devices, scores of the 6 items of indexes are given out or calculated; according to requirements of specific pump stations, corresponding weight of the 6 items of indexes are given out or calculated; weighing total score of one type of pump device is calculated; weighing total scores of the 8 types of pump devices are successively calculated; and according to the weighing total scores, the most proper pump device type of the pump station is determined. The method is simple and easy to use and has significant meanings for selection of the most proper pump device type for the low-head pump station, and for ensuring of high level construction and management of pump stations.

Description

technical field [0001] The invention belongs to the technical field of water conservancy engineering pumping stations, and specifically relates to a method for comparing and selecting large-scale low-lift pump device types, which is mainly used for quantitative comparison of various pump device types in large-scale low-lift pumping stations, and provides a method for determining the most reasonable pump device type scientific basis. Background technique [0002] Large-scale low-head pumping stations are widely used in many fields that have a great impact on my country's social and economic development, such as water resource allocation, agricultural irrigation and drainage, water environment management, and urban drainage. Large-scale low-lift pumping stations have a variety of pump device types with their own characteristics, such as: horizontally installed bulb-type or shaft-type tubular pump devices, shaft extension pump devices installed at different inclination angles f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D3/00F04D29/52F04D29/18
Inventor 陆林广陆伟刚徐磊练远洋施克鑫王海李亚楠
Owner YANGZHOU UNIV
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