Method and system for direct long-distance detection of non-metallic pipelines
A detection method and non-metal technology, applied in the field of pipeline detection, can solve the problems of limited detection range, inability to track and detect pipelines, laborious and other problems, and achieve the effect of improving the detection range
Active Publication Date: 2017-08-25
李天智
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Problems solved by technology
[0002] At present, the detection technology of metal pipelines in the world has become mature, but the detection of non-metal pipelines is still a technical problem. The current detection methods of buried non-metal pipelines mainly include: one is to pre-embed metal marks on non-metal pipelines The other is to put probes inside the non-metallic pipelines, and use the principle of electromagnetic induction to detect these pre-embedded metal marking lines or probes, so as to detect non-metallic pipelines. In the final analysis, it is still to detect metal markings, not Direct detection of non-metallic pipelines; there is also a ground-penetrating radar method. Although electromagnetic waves are used to directly detect non-metallic pipelines, it can only do profile detection (only tens of centimeters), and cannot track and detect pipelines.
These methods are more laborious and time-consuming to use, and the detection range is limited
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[0052] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0053] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "exclusion", "tracking", "cutting" and "connection" should be understood in a broad sense, for example, they may be mechanical or electrical connections, It may also be internal communication between two elements, either directly or indirectly through an intermediary. Those skilled in the art can understand the specific meanings of the above terms according to specific situations.
[0054] The invention provides a direct long-distance detection method for non-metallic pipelines, using the "Doppler effect" principle, adopting the "ground drilling m...
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The invention discloses a method and system for direct long-distance detection of non-metallic pipelines, belonging to the field of pipeline detection, using the principle of "Doppler effect", creating the "ground drilling method", "two-point connection method" and "exclusion method" "Pipeline detection technology, as well as the depth detection technology of buried pipelines, can accurately, quickly and conveniently detect non-metallic pipelines underground, underwater and in the air, and is especially suitable for detecting non-metallic pipelines such as buried PE pipes and cement pipes. It solves the problem that it is difficult to detect non-metallic pipelines in the world at present. The above three detection technologies do not need to find the connection point on the pipeline, which solves the problem that the traditional "direct connection method" is difficult to find the connection point on the pipeline, and greatly improves the detection range, and can continuously track and detect the target pipeline from a long distance.
Description
technical field [0001] The invention belongs to the technical field of pipeline detection, in particular to a method for direct long-distance detection of non-metallic pipelines. Created a non-metallic detection technology and principle, greatly improving the detection range, and can continuously track the detection target pipeline from a long distance. Background technique [0002] At present, the detection technology of metal pipelines in the world has become mature, but the detection of non-metal pipelines is still a technical problem. The current detection methods of buried non-metal pipelines mainly include: one is to pre-embed metal marks on non-metal pipelines The other is to put probes inside the non-metallic pipelines, and use the principle of electromagnetic induction to detect these pre-embedded metal marking lines or probes, so as to detect non-metallic pipelines. In the final analysis, it is still to detect metal markings, not Direct detection of non-metallic p...
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IPC IPC(8): G01V3/12G01B15/00
Inventor 李天智
Owner 李天智