Detection system and method for broken wire position of lined PCCP pipeline and electronic equipment

Abstract

The invention provides a detection system and method for the broken wire position of a lined PCCP pipeline and electronic equipment, and relates to the technical field of detection. The detection method comprises the steps that an excitation coil emits an excitation signal to generate a magnetic field, and detection coils or sensors receive the magnetic field generated by the excitation signal asa detection signal; the detection coils or sensors are close to the inner wall of the lined PCCP pipeline to be detected, and a plurality of detection coils or sensors are arranged along the circumferential angle of the e lined PCCP pipeline and move along the circumferential direction; an axial Bz or radial Br magnetic field signal generated by the excitation signal is received through the detection coils or sensors, and the detection signal of a detection end and the excitation signal of the excitation end are sent to a processing terminal; the absolute value of phase difference between thedetection signal and the excitation signal of different circumferential positions is processed by a data terminal; and according to the circumferential position of the absolute value of the maximum phase difference, the circumferential broken wire position of the lined PCCP pipeline is determined.

Description

technical field [0001] The invention relates to the technical field of pipeline maintenance, in particular to a liner PCCP pipeline broken wire position detection system, method and electronic equipment. Background technique [0002] Prestressed Concrete Cylinder Pipe (PCCP) refers to a pipe made by spirally winding prestressed high-strength steel wire on a concrete core with a steel cylinder and covering it with a mortar protective layer. Lined PCCP is a kind of PCCP pipe, that is, the steel wire is directly wound on the steel cylinder; as the service time increases, the prestressed steel wire in the pipe will break; if the number of steel wire breakage increases to a certain extent, it may cause the pipe to explode . [0003] The existing liner-type PCCP pipeline broken wire detection can only locate the axial position of the broken wire in the pipeline, but cannot locate the circumferential position of the broken wire. Contents of the invention [0004] In view of thi...

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Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a liner type PCCP pipeline broken wire position detection system, method and electronic equipment to solve the problem that the existing PCCP pipeline broken wire detection can only locate the axial position of the pipeline broken wire , but for the technical problem that the circumferential position of the broken wire cannot be located

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