A cold cathode x-ray inspection machine for pipes

By introducing a heat insulation box and temperature control mechanism into the cold cathode X-ray flaw detector, combined with multi-stage electric push rods and limit rollers, the problems of temperature drift and vibration of the emission module under extreme environments are solved, ensuring the accuracy and reliability of the detection and simplifying the operation process.

CN122409716APending Publication Date: 2026-07-17TONGCHUAN GAS CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TONGCHUAN GAS CO LTD
Filing Date
2026-06-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

When existing cold cathode X-ray flaw detectors are used for inspection inside pipelines, they are affected by extreme high and low temperature environments, which causes high-pressure module temperature drift, unstable X-ray output, drift of positioning sensor parameters, and vibration of pipeline crawler causing the emission module to deviate from the weld center, affecting the accuracy and reliability of the inspection.

Method used

It employs a heat insulation box, temperature control mechanism, and drive mechanism. It separates hot and cold airflows through vortex tubes, and the PLC controller regulates the air path to ensure stable temperature of electronic components. Multi-stage electric push rods and limit rollers provide rigid support to prevent the transmitter module from vibrating and deviating.

Benefits of technology

It improves the accuracy and reliability of test results, enhances the adaptability of equipment in extreme environments, simplifies the operation process, and improves on-site work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention belongs to the field of non-destructive testing equipment technology, and specifically relates to a cold cathode X-ray flaw detector for pipelines. It includes a cold cathode X-ray emitting module and a pipeline crawler. The bottom end of the cold cathode X-ray emitting module is fixedly connected to the top end of the pipeline crawler. A heat insulation box is fixedly connected to the top end of the pipeline crawler, and a temperature regulating mechanism is fixedly connected to the inner wall of the heat insulation box. A rectangular mounting hole is opened at the top end of the heat insulation box, and a U-shaped block is fixedly connected to the wall of the rectangular mounting hole. A support rod and a pad are fixedly connected to the inner wall of the U-shaped block. This invention enables the cold cathode X-ray flaw detector to not only have temperature regulation and limiting functions to prevent displacement of the pipeline crawler, but also improves the cold cathode X-ray flaw detector's resistance to harsh environments, further enhancing the reliability of the cold cathode X-ray flaw detector's operation and the accuracy of the test results. It can meet the needs of non-destructive testing of large-size pipeline welds in different seasons.
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