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Design method and device of runners of pump turbine

A technology for a water pump turbine and a design method, which is applied to mechanical equipment, components of a pumping device for elastic fluids, pumps, etc., can solve problems such as difficult runner performance, long time consumption, etc., and achieves a small number of optimization variables. The effect of short cycle time and cost reduction

Active Publication Date: 2019-10-11
STATE GRID CORP OF CHINA +2
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  • 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 runners of pump turbine
  • Design method and device of runners of pump turbine
  • Design method and device of runners of pump turbine

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Embodiment Construction

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

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

[0054] figure 1 It shows a design method of a water pump turbine runner described in the embodiment of the present invention. like figure 1 As shown, the method includes the following steps:

[0055] Step 101, determining 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 runners;

[0057] Step...

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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 for 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 rotor rotates forward to operate in the turbine mode; at the valley value of the grid power supply, the rotor rotates in reverse to operate in the pump mode. The flow characteristics inside the runner differ greatly in the forward and reverse directions of rotation. Therefore, compared with conventional turbines or pumps, 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 working conditions and turbine working conditions. [0003] Since the shape of the reversible pump-turbine runner is similar to ...

Claims

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Application Information

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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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