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Mixed flow water turbine runner dynamic balance test method

A test method and technology of water turbines are applied in the field of dynamic balance test to achieve the effects of stability and safety assurance, convenient dynamic balance test and easy operation.

Inactive Publication Date: 2019-10-11
CHONGQING WATER TURBINE WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic manufacturers only perform vertical static balancing or horizontal static balancing in the manufacturing plant to meet the design static balance requirements of the runner in static state. How to simulate the runner in the manufacturing plant There is a gap in whether the dynamic balance quantity of the hydropower unit under the operating condition meets the design dynamic balance quantity requirements

Method used

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  • Mixed flow water turbine runner dynamic balance test method
  • Mixed flow water turbine runner dynamic balance test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: as figure 1 , 2 As shown, a method for dynamic balancing test of a Francis turbine runner, the method includes the following steps: 1) cleaning and adjusting the dynamic balancing machine 1; 2) hoisting the mandrel 2 of the tooling to the dynamic balancing machine 1; 3) aligning the tooling Carry out dynamic balance test on mandrel 2; 4) Hoist runner 3 and install it on tooling mandrel 2; 5) Perform dynamic balance test on tooling mandrel 2 and runner 3 as a whole; 6) Correct the concave crown of runner 3 The plane and the bottom plane of the lower ring are qualified.

[0033] Wherein, in the step 2), it specifically includes the following steps:

[0034] (1) Put the lifting rings into both ends of the tooling mandrel 2 and tighten them, then hoist the tooling mandrel 2 to the support position 4 of the dynamic balancing machine 1; remove the lifting rings, and install the positioning flange 5 on one end of the tooling mandrel 2 , connect the universal j...

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PUM

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Abstract

The invention discloses a mixed flow water turbine runner dynamic balance test method. The method comprises the following steps of 1, cleaning and adjusting a dynamic balancer; 2, hoisting a tool dabber to the dynamic balancer; 3, performing a dynamic balance test on the tool dabber; 4, hoisting a runner and installing the runner on the tool dabber; 5, performing the dynamic balance test on both the tool dabber and the runner; and 6, correcting a crown concave plane and an lower annular base plane on the runner, to be qualified. The mixed flow water turbine runner dynamic balance test method provided by the invention has the advantages of being simple and convenient to operate, reliable to sue and low in cost; by using the method, the dynamic balance test can be quickly and conveniently performed on the runner of the mixed flow water turbine, so that the operation stability and safety of the product under the hydraulic condition are ensured.

Description

technical field [0001] The invention relates to a dynamic balance test method, in particular to a dynamic balance test method for a Francis water turbine runner. Background technique [0002] At present, the runner of the Francis turbine is the core component of the turbine. How the runner operates stably and safely under hydraulic conditions is an aspect that needs to be improved, which requires the guarantee of manufacturing technology. At present, domestic manufacturers only perform vertical static balancing or horizontal static balancing in the manufacturing plant to meet the design static balance requirements of the runner in static state. How to simulate the runner in the manufacturing plant There is a gap in whether the dynamic balance quantity of the hydropower unit under the operating condition meets the design dynamic balance quantity requirements. Contents of the invention [0003] The object of the present invention is to provide a dynamic balance test method ...

Claims

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Application Information

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IPC IPC(8): G01M1/16F03B11/00
CPCF03B11/008G01M1/16Y02E10/20
Inventor 邓润华甘磊冯维
Owner CHONGQING WATER TURBINE WORKS
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