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结合现行CJJ 28—2014《城镇供热管网工程施工及验收规范》对供热管道焊接接头无损探伤(超声波探伤、射线探伤)检测结果评定标准的规定,针对属于压力管道范畴的一级管网,分析在实际执行中遇到的问题。提出焊接接头超声波探伤检测结果评定标准宜执行NB/T 47013.3—2015《承压设备无损检测第3部分:超声检测》,射线探伤检测结果评定标准宜执行NB/T47013.2—2015《承压设备无损检测第2部分:射线检测》。
Combined with the current CJJ 28-2014 “urban heating pipe network construction and acceptance criteria” on the heating pipe welding joints non-destructive testing (ultrasonic flaw detection, ray flaw detection) test results evaluation criteria for the pressure pipe belongs to the category of pipe network , Analyze the problems encountered in the actual implementation. It is suggested that the evaluation standard of ultrasonic flaw detection results of welded joints should be carried out NB / T 47013.3-2015 “Nondestructive testing of pressure equipments: Part 3: Ultrasonic testing”, and the evaluation standard of radiographic flaw detection results should be NB / T47013.2-2015 " Non-destructive testing - Part 2: Radiographic testing.