What are the characteristics and applications of pipeline inspection

Pipelines are the main way of transporting large amounts of energy such as oil and gas, and are widely used in the chemical industry. Like all engineering equipment, pipelines can also experience malfunctions. Defects may occur at various stages of pipeline manufacturing, laying, and operation. Timely detection of pipeline defects can reduce maintenance costs.

The pipeline inspection company will take you to understand the characteristics and functions as follows:

1. It can measure the true protective potential at any point of the pipeline (after eliminating IR drop), and with the help of a professional static data recorder, it can complete the static measurement of pipeline potential and record potential fluctuations for a long time;

2. Use a satellite synchronous cut-off device to test the on/off potential of each point in the pipeline;

3. Generate pipeline distance potential defects, analyze weak areas of pipeline cathodic protection, and provide data support for the processing plan of pipeline cathodic protection system; Correcting time sequence and eliminating time drift can accurately record time and GPS coordinates;

4. The satellite synchronous cutoff device has different time on/off sequences, which can meet the inspection of the ground potential detector of the dense interval tube and the detection of the DC voltage gradient detection system;

5. The dense interval tube ground potential detector can display the shape of the monitored pulse on the host screen, including the peaks of the cathode and anode, AC interference, and small pulses caused by the on/off of the circuit breaker;

6. The measurement host of the closely spaced pipe ground potential detector can store the characteristics of pipeline detection (such as crossing roads, rivers, test piles, etc.), which facilitates data analysis;

7. The measuring host of the closely spaced tube ground potential detector has the electronic measurement function of the DC voltage gradient detection system, which can measure the on/off potential of the DC voltage gradient detection system.

Ultrasonic testing technology utilizes the characteristic of uniform propagation of ultrasonic waves and partial reflection on metal surfaces for pipeline inspection and testing. The ultrasonic waves emitted by the detector probe during operation inside the pipeline are reflected on the inner and outer surfaces of the pipeline and received by the detector probe.

The data processing unit of the detector can calculate the actual wall thickness of the pipeline by multiplying the time difference between the two sets of reflected waves received by the probe by the speed of ultrasonic propagation.