Structure of guide vane vertical surface for improving accuracy of measurement on hydraulic torque of guide vane of model hydraulic turbine

A technology for measuring accuracy and guide vane elevation, applied in hydroelectric power generation, mechanical equipment, machines/engines, etc., can solve problems affecting the measurement accuracy of guide vane water moment

Inactive Publication Date: 2012-09-26
HARBIN ELECTRIC MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above structure can only eliminate the radial friction moment between the upper and lower journals of the rotating guide vane and the top cover 2 and bottom ring 5 of the fixed part, and since there is no axial positioning between the guide vane 1

Method used

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  • Structure of guide vane vertical surface for improving accuracy of measurement on hydraulic torque of guide vane of model hydraulic turbine
  • Structure of guide vane vertical surface for improving accuracy of measurement on hydraulic torque of guide vane of model hydraulic turbine
  • Structure of guide vane vertical surface for improving accuracy of measurement on hydraulic torque of guide vane of model hydraulic turbine

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[0009] Such as figure 2 with image 3 As shown, a guide vane elevation structure that improves the measurement accuracy of the guide vane hydraulic moment of a model turbine, such as figure 2 , image 3 with Figure 4 As shown, the upper step 6 protruding from the upper part of the guide vane 1 is mounted on the inner ring of the upper bearing 3, the lower step 7 protruding from the lower part of the guide vane is mounted on the inner ring of the lower bearing 4, and the upper bearing 3 is fixedly mounted on the top In the cover 2, the lower bearing 4 is installed in the bottom ring 5.

[0010] The working principle of the present invention: Figure 5 As shown, when the guide vane moves upward, the partially protruding upper step 6 on the vertical surface of the guide vane abuts on the inner ring of the upper bearing 3, so that the guide vane cannot continue to move upward in the axial direction, thereby ensuring that the rotating guide vane stands up. There is always no contac...

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Abstract

The invention relates to a structure of a guide vane vertical surface for improving accuracy of measurement on a hydraulic torque of a guide vane of a model hydraulic turbine. An upper axle journal part and a lower axle journal part of a special measurement guide vane vertical surface for the hydraulic torque of the guide vane of the model hydraulic turbine are additionally provided with a stair structure respectively. The upper and lower boss structures of the guide vane vertical surface ensure that the special measurement guide vane vertical surface for the hydraulic torque of the guide vane provided with torque measuring equipment is not contacted with other parts in the axial direction, so that the friction torque between the guide vane vertical surface and a top or a bottom ring, which is inevitable to the traditional guide vane structure, is avoided; and therefore the accuracy of measurement on the hydraulic torque of the guide vane is improved.

Description

[0001] Technical field: The present invention relates to a guide vane elevation structure that improves the measurement accuracy of the guide vane water moment of a model water turbine. Background technique: [0002] The guide vane is an important part of the turbine to form and change the circulation of water entering the runner, adjust the flow, change the output of the turbine generator set, and seal the water flow during normal and accident shutdowns to ensure that the turbine has good hydraulic characteristics and safety. The size of the water-receiving moment directly affects the capacity of the servomotor of the hydraulic turbine water guiding mechanism and the reasonable selection of the structural dimensions of the transmission components of the hydraulic turbine water guiding mechanism. Since it is currently impossible to accurately obtain the magnitude of the hydraulic moment on the guide vane by theoretical calculation methods, the method of converting the hydraulic...

Claims

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Application Information

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IPC IPC(8): F03B3/18
CPCY02E10/223Y02E10/20
Inventor 赵越童文波陈金霞刘登峰张千里赵景芬赵英男徐用良郭全宝邵国辉刘志良刘文杰王治国
Owner HARBIN ELECTRIC MASCH CO LTD
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