Gas turbine compressor blade field in-situ ultrasonic detection tool

An ultrasonic testing and gas turbine technology, which is applied to measuring devices, analyzing solids using sonic/ultrasonic/infrasonic waves, and using sonic/ultrasonic/infrasonic waves for material analysis, etc., can solve the complex shape of compressor blades, poor probe coupling, and detection problems and other problems to achieve the effect of improving probe coupling conditions and improving detection efficiency

Pending Publication Date: 2022-01-21
XIAN THERMAL POWER RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex shape and torsion structure of the compressor blade, when the ultrasonic inspection is carried out on site, especially when the ultrasonic inspection of the entire blade body of the compressor blade is to be carried out, the detection of the inaccessible parts of the blade body often becomes a problem. It touches the part to be detected, but the detection reliability and sensitivity will inevitably decrease due to problems such as poor probe coupling and inaccurate positioning.

Method used

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  • Gas turbine compressor blade field in-situ ultrasonic detection tool
  • Gas turbine compressor blade field in-situ ultrasonic detection tool

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] refer to figure 1 , a gas turbine compressor blade field in-situ ultrasonic detection tooling provided by the present invention is characterized in that it includes a base 1, a probe clamping device 2, a guide pin 3, an encoder 4, a ranging module 5 and a joystick 6 .

[0023] The base 1 includes a permanent magnet 101 and a toothed guide rail 102. The shape of the permanent magnet 101 is zigzag, and directly interacts with the surface of the blade to be tested.

[0024] The permanent magnet 101 is composed of 2 long sides and 2 short sides. The long side is perpendicular to the direction of the compressor blade body, and the short side is parallel to the direction of the compressor blade body. The width of the long side should not be less than 30mm, and the width of the short side should not Greater than 10 mm, the toothed guide rail 102 is embedded on the ba...

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Abstract

The invention discloses a gas turbine compressor blade field in-situ ultrasonic detection tool, which comprises a base, a probe clamping device, a guide pin, an encoder, a distance measurement module and a control rod. The base is a rectangular-ambulatory-plane flexible magnet and is stably adsorbed on the surface of a blade body of a detected compressor blade; the probe clamping device is connected with the groove of the base through a guide pin, and an encoder and a distance measuring module are arranged on the probe clamping device; and the probe clamping device is controlled by the operating lever to move and scan along the long side of the base. The tool can adapt to the surfaces of the compressor blades with different curvatures, stable coupling of the ultrasonic detection probe is guaranteed, meanwhile, the transverse position and the longitudinal position of the ultrasonic probe can be positioned in real time, and the detection efficiency and reliability can be improved.

Description

technical field [0001] The invention belongs to the field of ultrasonic detection, and in particular relates to a tool for in-situ ultrasonic detection of gas turbine compressor blades. Background technique [0002] The gas turbine compressor blade is the core working part to realize the compression of the air entering the compressor. In actual operation, it is often subjected to harsh conditions such as high stress, vibration, corrosion, etc., and its operation safety has a great impact on the gas turbine. In particular, there have been many serious accidents caused by compressor blade breakage in domestic gas turbine units, so it is particularly important to conduct comprehensive, detailed and effective ultrasonic testing of compressor blades. [0003] At present, the ultrasonic testing of gas turbine compressor blades is mainly carried out at the maintenance site of the power plant, and sometimes even when the compressor cylinder is not exposed when the compressor is shut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/22G01N29/28
CPCG01N29/04G01N29/225G01N29/28G01N2291/023G01N2291/0289G01N2291/101G01N2291/2698
Inventor 张炯肖俊峰高斯峰李永君唐文书南晴高松
Owner XIAN THERMAL POWER RES INST CO LTD
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