application of jacketed metal pipeline inspection -尊龙凯时官网入口
application of jacketed metal pipeline inspection
client unit：daqing oilfield special equipment inspection & testing center
inspection location：no.2 metal plant
testing instrument：weak magnetic detector for oil storage tank
inspection time：november 2017
remark:
according to the on-site inspection conditions, the sensor equipped on this device is a flexible array assembled with 12 high-precision probes. it can be bent and stretched freely to closely attach to the tested workpiece, thus improving inspection accuracy.
nspection site 1：
on-site re-inspection result：
result analysis:
based on the analysis of weak magnetic inspection results, six corrosion pits of varying severity were found in the inspected area. verification carried out by staff entering the tank interior confirmed that the inspection results are fully consistent with the actual situation.
inspection site 2：
result analysis:
based on the analysis of weak magnetic testing results, a corrosion pit with a corrosion degree of 15% was found at the 680mm position of the tank wall. the same corrosion pit was detected at this position by an ultrasonic thickness gauge. the test results are completely consistent with the ultrasonic inspection data.