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Ultrasonic flow detection for small and medium diameter pipe bends

Author: Shao-he Song (senior electrical engineer)
Adress: Boiler Inspection Office, Gansu Electric Powere Test & Research Institute Gansu Province, China
Co-Author: Xin Zhang ( electrical engineer)
Adress: Boiler Inspection Office, Gansu Electric Powere Test & Research Institute Gansu Province, China
Jin-qiang Hu ( electrical engineer)
Adress: Gansu 803 Electric Powere plant, Gansu Province, China
Contact

ABSTRACT :

1. Introduction

2. Nondestructive Flaw Detection Methods for Small and Medium Diameter Pipe Bends

3. Development of double piezocrystal ultrasonic detector with a concave surface

4. Construction of testing block

5. Adjusting the equipment (see Fig.11)

6. Practical Applications

Photo 1: Inner wall crack in the No.2 Boiler down comer at 803 power plant Photo 2: Inner wall crack in the No.7 Boiler down comer at Xigu Thermal Power Plant

7. Conclusions

References

  1. Ultrasonic Flaw Detection, Water Conservancy Publishing Company, 1980.

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