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Water turbine peddle adjustment and measurement method and peddle measurement device for method

A technology for adjusting measurement and hydraulic turbines, applied in measurement devices, mechanical equipment, hydropower generation, etc., can solve the problems of inability to measure the blades of hydraulic turbines, prolong downtime for maintenance, and increase maintenance costs, so as to shorten maintenance time and improve work efficiency. , the effect of convenient operation

Inactive Publication Date: 2015-03-18
HUNAN WULING POWER ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since it is currently impossible to accurately measure the rotation angle of the turbine blades on site, the entire runner can only be returned to the factory for repair and adjustment, resulting in prolonged downtime for maintenance and a substantial increase in maintenance costs

Method used

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  • Water turbine peddle adjustment and measurement method and peddle measurement device for method
  • Water turbine peddle adjustment and measurement method and peddle measurement device for method
  • Water turbine peddle adjustment and measurement method and peddle measurement device for method

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Embodiment Construction

[0036] Below as figure 2 The water turbine shown is taken as an example, and the method for adjusting and measuring the blades of the water turbine according to the present invention will be further described in detail.

[0037] An embodiment of a water turbine blade adjustment and measurement method of the present invention, this embodiment is for such as figure 2 The shown water turbine adjusts the blades. The water turbine has five blades, which are respectively recorded as No. 1-5 blades. The basic flow of the method is as follows figure 1 As shown, it specifically includes the following steps:

[0038] 1) Mark the measuring points on each blade: select the measuring section of the blade, mark the measuring points on the water inlet edge and the water outlet edge of the blade respectively, and mark the measuring points one by one for No. 1-5 blades , it is required that the position of the measuring section of each blade is the same, and the position of the mark of the...

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Abstract

The invention relates to a water turbine peddle adjustment and measurement method and a peddle measurement device for the method. The water turbine peddle adjustment and measurement method comprises the following steps of: (1) marking measured points on each peddle; (2) measuring an angle to be rotated of each peddle; (3) setting an adjustment target value of the angle to be rotated of the peddle and calculating a difference value between the angle to be rotated of each peddle and the adjustment target value; (4) calculating the correction value Delta of a rotating angle adjusting gasket of each peddle; (5) measuring the thickness d of the original gasket and calculating the thickness D of a new gasket; and (6) machining and replacing the new gasket. The water turbine peddle adjustment and measurement method disclosed by the invention can be used for adjusting the rotating angles of the peddles in the repair site of a hydraulic power plant, ensures that the rotating angles of the peddles of a water turbine are more uniform and is conductive to improving the operation stability and the working efficiency of a water-turbine generator set. The peddle measurement device comprises a hose, metering tubes and a pair of clamps for connecting the metering tubes and the peddles, wherein the metering tube is respectively and rotatably arranged on the clamp of each peddle, the two metering tubes are vertically arranged, the bottom ends of the metering tubes are communicated by the hose, and the metering tubes and the hose are respectively filled with metering liquid.

Description

technical field [0001] The invention relates to blade measurement and adjustment in the installation and maintenance of a tubular water turbine, in particular to a water turbine blade adjustment and measurement method and a blade measurement device used in the method. Background technique [0002] With the rapid development of the power industry, the demand for power equipment such as water turbines continues to grow, and the quality requirements are increasingly stringent. As the key part of the water turbine, the blade rotation angle directly affects the hydraulic performance, power generation efficiency, operation stability and service life of the entire turbine unit. This is why the measurement and adjustment of the turbine blade rotation angle has attracted people's attention. . [0003] At present, the equipment manufacturers of water turbines usually pre-assemble the runners of the tubular water turbines before delivery, and classify the corresponding transmission pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03B3/14G01B21/22
CPCY02E10/223Y02E10/20Y02P70/50
Inventor 饶洪德向佑明黄竹青刘忠刘强曾维才刘国全肖启志许亦波
Owner HUNAN WULING POWER ENG
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