供热直埋蒸汽管道压力试验

本文依托于某供热直埋蒸汽管道项目,研究工作管与外护管压力试验技术.通过分析试验介质选择与试验压力计算,进行新型端部固定封头设计与强度校核,并提出外护管气密性试验、工作管强度试验及工作管严密性试验操作步骤、要点及新方法,如注水流量计、排潮管口气球、远程压力数据读取及气压排水等.本文针对供热直埋蒸汽管道压力试验的理论分析及...

Pressure test ofdirectly buried heating steam pipeline

Based on a directly buried heating steam pipeline project, this paper research on pressure test technology of working pipe and outer protective pipe.Through the analysis of test medium selection and test pressure calculation, we design and check the strength of a new type end fixed head, and put forward the operation steps, key points and new methods of air tightness test of outer protective pipe, strength test of working pipe and tightness test of working pipe.New methods include water injection flowmeter, balloon of tide discharge pipe, remote pressure data reading and pressure drainage, etc.In this paper, the theoretical analysis and technical measures of the pressure test of directly buried steam pipeline for heating supply are given, which has certain guiding significance for other pressure tests of the same type of pipeline.