Testing of pressure vessels
NDT methods generally used for ispection of pressure vessels.
Detection of surface defects
- Visual testing (VT)
- Eddy current testing (ET)
- Magnetic particle testing (MT)
Detection of internal defects
- Ultrasonic testing (UT)
- Radiographic testing (RT)
Specifications
| minimum | maximum | units | |
|---|---|---|---|
| Outside Diameter *) | 120 | 406 | mm |
| Length *) | 400 | 1700 | mm |
| Wall Thickness (cylindrical part) *) | 3.0 | 12 | mm |
| Overlap | 10 | % |
*) These parameters are subject of agreement with a customer.
Parameters of ultrasonic testing equipment
- Multi-channel ultrasonic system
- Testing frequency range 2 to 15 MHz
- Testing sensitivity from 1 mm FBH
- Automatic visual/acoustic signalization of test results for line control ??“ sorting device
- 5 transducers combined in each one testing head
- Simultaneous operation with 2 to 5 testing heads in one equipment
Gallery
Configuration of ultrasonic transducers in testing head
Testing line assembly
First equipment for off-line UT of small pressure vessels
Reference piece pressure vessel with defined artificial defects
Pressure vessel ultrasonic testing in progress
Testing line in Poland (MILMET)
Testing line in Poland (MILMET)
A-Scan – longitudinal notch in reference piece
A-Scan – thickness measurement
Database of ultrasonic testing
Examples of settings
Advantages of automated ultrasonic testing equipment for pressure vessels
- Ultrasonic testing system is equipped with modern computer technique, enabling fully automatic operation without presence of operator;
- Automatic manipulation with pressure vessels;
- Short time for testing of one pressure vessel;
- Simple control and adjustment of the system via user friendly software;
- Possibility of remote system diagnostics;
- Immediate information/signalization about rejected and good vessels;
- Immediate documenting and archiving of test results, including data transfer to company’s central information system;
- Generating test reports for separate vessels and/or for whole order;
- Statistic data processing based on chosen criteria;
- Parameters and functions of test are saved on HD.
