A device and method for measuring the change of pipeline inclination angle

Abstract

The invention provides a device for measuring the change of the inclination angle of the pipeline. The pipeline is a straight pipe, including: a first measurement point and a second measurement point, and the first measurement point and the second measurement point are fixed on the surface of the pipeline and arranged along the length direction of the pipeline; the first coordinate system device is used to determine the three-dimensional coordinates of the first measurement point; the second coordinate system device is used to determine the three-dimensional coordinates of the second measurement point; The first coordinate system device and the second coordinate system device are fixedly installed independently of the pipeline. The present invention also provides a method for measuring the variation of the inclination angle of the pipeline by using the above-mentioned device. In summary, the present invention is beneficial in that it has a simple structure and is easy to install; by setting the first measurement point and the second measurement point on the surface of the pipeline, the change of the pipeline inclination is calculated according to the three-dimensional coordinate changes of the two measurement points, and the whole The device has strong adaptability, wide application range and high measurement accuracy.

Description

technical field [0001] The invention relates to the technical field of pipeline measurement, in particular to a device and method for measuring changes in pipeline inclination. Background technique [0002] The hot state function test is to increase the temperature and pressure of the nuclear steam supply system, and verify the functional response, durability and safety of the relevant equipment and systems in the entire temperature and pressure range from the cold state to the hot shutdown state, so as to ensure that they can Run the work performed as designed. In the thermal functional test stage of nuclear power plants, it is necessary to measure the inclination angle of the pipeline to prevent the inclination direction of the pipeline from being correct or the inclination angle not meeting the requirements, resulting in the accumulation of local hot spots in the pipeline and threatening the safe operation of the pipeline. [0003] The traditional measurement method is t...

AI Technical Summary

Problems solved by technology

In the thermal functional test stage of nuclear power plants, it is necessary to measure the inclination angle of the pipeline to prevent the inclination direction of the pipeline from being incorrect or the inclination angle not meeting the requirements, resulting in the accumulation of local hot spots in the pipeline and threatening the safe operation of the pipeline

[0003] The traditional measurement method is to use an angle measuring instrument to manually measure the inclination angle of the pipeline. However, due to the high temperature of the pipeline surface in the thermal functional test, manual measurement has a high safety risk; in addition, an insulation layer structure is installed outside the pipeline, and the manual measurement obtained The data does not accurately reflect the actual inclination of the pipe

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