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Water level control method for energy characteristic test of channel diversion-type hydropower station water turbine

A water diversion type power station, energy characteristics technology, applied in the direction of machine/structural component testing, measuring devices, instruments, etc., can solve the problems of heavy workload, inconvenient installation, poor real-time performance, etc., to improve the accuracy of flow measurement and facilitate installation , Improve the effect of test accuracy

Active Publication Date: 2015-03-25
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0004] In view of the above problems, the present invention proposes a water level control method for the forebay water level test of the channel diversion type hydro turbine energy characteristic test with high test accuracy and simple operation, which can solve the problems of heavy workload, inconvenient installation and poor real-time performance in the prior art. defect

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  • Water level control method for energy characteristic test of channel diversion-type hydropower station water turbine

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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0013] A water level control method for testing the energy characteristics of a hydro turbine in a canal diversion type power station, comprising the following steps:

[0014] (1) Adopt at least 4 sound paths, that is, 8 ultrasonic transducers, plus an upward-looking ultrasonic water level gauge, which is installed at the bottom of the canal. The flow measuring transducer is installed in a suitable channel position, and the transducer cable is led out of the channel from here;

[0015] (2) Lead all transducer cables, including flow velocity transducer and water level transducer cables, from inside the flow channel to outside the flow channel, and connect the cables to the front unit of the flow measuring instrument, and control them through the host computer (laptop computer) , and debug when there is water in the flow channel;

[0...

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Abstract

The invention discloses a frontal pool water level control method for an energy characteristic test of a channel diversion-type hydropower station water turbine. The method includes the following steps that (1), an arrangement of at least four acoustic paths is adopted; (2), all transducer cables are led out of a flowing channel, connected into a front unit and connected with a notebook computer, and adjusting is performed under the condition that water exits in the flowing channel; (3), a recording interval is set in flow measuring software of the notebook computer, the starting time and ending time of each working condition are recorded, and after each working condition is tested, historical data can be exported and analyzed according to the starting time and ending time of the test. Novel channel transducers variable in acoustic path angle are adopted, in this way, installing is convenient, flow measuring precision is improved, and the test precision of a system is improved.

Description

technical field [0001] The invention relates to a method for testing the performance of a water turbine in a hydropower station, in particular to a water level control method for testing the energy characteristics of a water turbine in a channel diversion type power station. Background technique [0002] Channel diversion type power station channel can be used as a diversion channel to concentrate the drop for the non-pressure diversion type hydropower station to form a water head and deliver water to the unit; it can also be used as a tailrace to discharge the water used for power generation into the downstream river. When the maximum flow passes through the canal, the pressure forebay water level is lower than the weir crest; when the machine flow decreases to a certain extent, the forebay water level exceeds the weir crest, and the overflow weir begins to overflow. When the reference flow of the hydropower station is zero, all the flow through the channel is overflowed by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00
Inventor 秦睿刘秀良闵占奎张小敏董开松李诚李臻王维洲赵耀郑翔宇杨俊赵炜马喜平甄文喜魏博张光儒李志敏沈渭程党云平陈明忠王娅君张娟刘璐陈志彤汪红燕杨柯
Owner STATE GRID CORP OF CHINA
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