Clamping detection device with adjustable opening and detection system

Abstract

The invention relates to a clamping detection device with an adjustable opening and a detection system. The size of an opening of the clamping detection device can be flexibly adjusted so as to adapt to copper pipes with different pipe diameters, one clamping detection device or a plurality of clamping detection devices which are connected in sequence can be arranged according to the length and the number of the copper pipes to be measured, the copper pipes with any length can be measured, meanwhile, portable carrying can be achieved, and the eddy current sensor and the ultrasonic probe assembly are installed on the clamping detection device. The clamping detection device can move freely along the wall of the copper pipe in the circumferential direction and the length direction, full-area covering of the inner wall surface and the outer wall surface of the marine copper pipe is achieved, the problem that the near-surface corrosion defect of the outer side of the copper pipe cannot be effectively detected is solved, the capability of detecting corrosion thinning and surface crack defects of the marine copper pipe at the same time is achieved, and the detection efficiency is improved. And safe and reliable operation of the marine copper pipe is guaranteed. According to the detection system, an ultrasonic reflection method and an eddy current detection method are combined, and external near-surface defects and internal large-area corrosion thinning of the whole copper pipe can be detected at the same time.

Description

technical field [0001] The invention belongs to the damage detection of ship copper pipes in the transportation and shipping industry, and particularly relates to a clamping detection device and a detection system with adjustable openings. Background technique [0002] The main and auxiliary boiler connecting pipes of marine steam / feedwater / condensate pipes will inevitably corrode due to long-term service. It will expand with the extension of the service life of the copper pipe, and the wall thickness of the copper pipe will be further reduced. After a certain degree, the remaining wall thickness of the copper pipe is not enough to withstand the rated working pressure of the marine copper pipe. The corroded area leaks and ruptures. [0003] In the prior art, a portable ultrasonic wall thickness gauge is used to measure the wall thickness to judge the degree of corrosion damage in this area, but the ultrasonic wall thickness gauge cannot measure the corrosion defects or agin...

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Problems solved by technology

[0002] The main and auxiliary boiler connecting pipes of marine steam / feed water / condensate water pipes will inevitably be corroded due to long-term service. If no maintenance measures are taken for the corrosion defects of copper pipes or the corrosion layer with aging cracks and damage, the corrosion defect area of ​​copper pipes will be damaged. It will expand with the extension of the service life of the copper pipe, and the wall thickness of the copper pipe will be further reduced. Corrosion area leaks and ruptures

[0003] In the prior art, a portable ultrasonic wall thickness meter is used to measure the wall thickness to judge the degree of corrosion damage in this area, but the ultrasonic wall thickness meter cannot measure the corrosion defects on the copper pipe surface or the aging cracks and damage defects, and it is also unable to measure the corrosion damage of different The diameter of the copper pipe is measured

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