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Design method and device of water pump turbine runner

A water pump turbine, design method technology, applied to mechanical equipment, components of pumping devices for elastic fluids, pumps, etc., can solve difficult problems such as runner performance and time-consuming, and achieve optimization with fewer variables and optimized The effect of short cycle and short consumption time

Active Publication Date: 2021-03-23
STATE GRID CORP OF CHINA +2
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many design parameters that affect the performance of the runner of the reversible pump turbine, and the same parameter may have opposite effects on the performance of the runner under the two working conditions of the turbine and the pump. Therefore, the design process needs to be based on a large number of numerical simulation calculations and model tests. It takes a long time to modify the design parameters repeatedly, and it is difficult to ensure that the runner can achieve high performance under the two working conditions of the water pump and the turbine

Method used

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  • Design method and device of water pump turbine runner
  • Design method and device of water pump turbine runner
  • Design method and device of water pump turbine runner

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Embodiment Construction

[0052] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0053] The invention improves the problems of long time-consuming, high cost and poor comprehensive performance of the design runner in the design process of the pump-turbine runner, and proposes a multi-objective optimization design system for the pump-turbine runner.

[0054] figure 1 A design method for a water pump turbine runner according to an embodiment of the present invention is shown. like figure 1 As shown, the method includes the following steps:

[0055] Step 101, determine the basic parameters and control parameters of the runner;

[0056] Step 102, establishing a plurality of three-dimensional models of initial runners according to the basic parameters and control parameters of the runner;

[0057] Step 103, obtaining the...

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Abstract

The invention discloses a design method and device of runners of a pump turbine. The method comprises the following steps of determining basic parameters and control parameters of runners; according to the basic parameters and the control parameters of the runners, establishing three-dimensional models of the multiple initial runners; obtaining the runner performance of the multiple initial runners; optimizing the runner performance of the multiple runners to obtain the multiple optimized runners; and screening and determining the runners of the pump turbine. The invention further discloses adevice of the runners of the pump turbine. According to the design method and the device, the pump turbine runners which have good comprehensive performance in the cavitation performance, the water pump working condition and the water turbine working condition can be quickly designed.

Description

technical field [0001] The invention relates to a design method of a water pump turbine, in particular to a design method and device of a runner of a water pump turbine. Background technique [0002] The reversible pump-turbine runner is the core component of modern large-scale pumped-storage units. At the peak of the grid power supply, the runner rotates forward and runs in the turbine mode; at the valley of the grid power supply, the runner rotates in the reverse direction and runs in the pump mode. In both forward and reverse rotation directions, the flow characteristics inside the runner are very different. Therefore, compared with the conventional water turbine or water pump, the design of the reversible pump-turbine runner is more complicated, and it is difficult to ensure that the pump-turbine has better comprehensive performance in cavitation performance, pump operating conditions and water-turbine operating conditions. [0003] Since the shape of the reversible pu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03B3/12F03B11/00F04D15/00F04D29/24
CPCF03B3/121F03B11/008F04D15/0088F04D29/242Y02E10/20Y02P70/50
Inventor 李东阔宫奎张飞江献玉秦俊邓磊周攀刘锋刘仁郭鹏
Owner STATE GRID CORP OF CHINA
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