DESIGN AND IMPLEMENTATION OF INNER PIPELINE CORROSION MONITORING SYSTEM

Corrosion monitoring technology is used to test the inner corrosion or destruction of device, under the proper operation, to avoid the fatal accident, extend device's life?span, make device work effectively. The pipeline inner corrosion monitoring system was developed and designed as the hardware core of microcomputer, modem, programmable logical controller, signal transfer device, corrosion probe and as the software platform of the virtual instrument language LabVIEW. The system can be used to evaluate the effect of anti?corrosion by the electronic resistance corrosion probe and linear polarization corrosion probe in the light of the inner electrochemistry corrosion degree and hydrogen brittle tendency. The system was used in the northwest of Sichuan diggings. The results show that the effective, reliable online monitoring of the inner pipeline corrosion can be run by this system.