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文章分析了重庆某自来水厂在其供水工程应用中使用PP-R管材发生爆管的原因,结果表明,当较短的PP-R管材与钢塑复合管连接形成管网后,环境温度及光照是造成管网内压力升高的主要因素,如果长期不用水或用水量较小,就不能及时泄掉管网内升高的压力,从而发生爆管。根据分析结果,提出了PP-R在该类工程设计应用中的改善措施与对策。
The paper analyzes the reason why a PPW pipe burst pipe is used in a waterworks application in a waterworks in Chongqing. The result shows that when the pipe network is connected with the PP-R pipe and the plastic-plastic composite pipe, the ambient temperature and illumination Is caused by the pressure pipe network is the main factor, if the long-term useless water or water consumption is small, it can not promptly vent the pipe network increased pressure, resulting in burst pipe. According to the result of analysis, the improvement measures and countermeasures of PP-R in such engineering design and application are put forward.