DR detection of in-service insulation layer pipeline

At the invitation of an A-level testing company in Anhui Province, a team of three DR testing engineers from Ge Yu Technology Engineering Department came to the designated testing project site of the Provincial Special Inspection Institute on July 7th to evaluate the project site and select 20 randomly inspected welded joints; The on-site thermal conductivity pipeline is shown in the following figure:

      The on-site inspection was carried out from July 8 to July 9. Since the heat transfer oil in the pipeline to be inspected could not be exported, our DR inspection engineer had conducted DR inspection on the site in Hefei Provincial Hospital, Anhui Province in the middle of June, The comparison result shows that the sensitivity of the DR imaging plate can meet the acceptance requirement of AB level qualification, while the traditional radiographic film cannot see the 13th wire diameter (effective continuous length 1cm), which cannot meet the standard requirements; Therefore, the DR method -1210 imaging board combined with a 200KV high-frequency machine was selected for this detection; The detection effect is shown in the following figure:

      On site filming process：