Intelligent surface scanning method for tubular component in reactor pressure container of nuclear power plant

Abstract

The invention discloses an intelligent surface scanning method for a tubular component in a reactor pressure container of a nuclear power plant. The intelligent surface scanning method comprises the following steps of (1) mounting a multi-axis scanner for performing nondestructive examination on the reactor pressure container into the reactor pressure container to be detected according to a preset mounting position; (2) determining space positions of all pieces of degree-of-freedom motion axis of the multi-axis scanner and space positions of probes for the nondestructive examination on the corresponding motion axis and determining the contour and the position of the tubular component to be detected in the reactor pressure container of the nuclear power plant; (3) generating motion traces of the probes, which execute the intelligent scanning, on the motion axis according to the contour and the space position of the tubular component in the reactor pressure container of the nuclear power plant; (4) generating control instructions and corresponding control parameters of the degree-of-freedom motion axis of the multi-axis scanner according to the motion traces generated in the step (3), wherein during scanning, the multi-axis scanner drives the degree-of-freedom motion axis to move in sequence to scan the surface of the tubular component according to the control instructions and the corresponding control parameters of the degree-of-freedom motion axis. According to the method, the scanning process is effectively simplified, the scanning precision is improved and the scanning speed is increased.

Description

technical field [0001] The invention belongs to the technical field of surface detection, and in particular relates to an intelligent scanning method for the surface of a tubular part in a reactor pressure vessel of a nuclear power plant. Background technique [0002] At present, in the field of nuclear power inspection, in order to reduce the impact on inspectors and objects to be inspected, non-destructive testing is generally used. Non-destructive testing is to use the sound, light, magnetic and electrical characteristics of the material to detect whether there is a defect or inhomogeneity in the object to be inspected without damaging or affecting the performance of the object to be inspected, and to give the size and location of the defect. , nature and quantity information. Compared with destructive testing, nondestructive testing has the following characteristics. The first is non-destructive, because it will not damage the performance of the detected object during ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose an intelligent scanning method for the surface of tubular parts in the reactor pressure vessel of a nuclear power plant, which meets the requirements for various complex trajectory scanning of key parts of the nuclear power plant, solves the problem of blind spots in inspection of special parts, and improves the quality of inspection results ; It also solves the dangerous problem that the detection personnel are exposed to a certain amount of radiation dose due to manual mode scanning in the prior art

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