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管接头是管道施工的主要工序,它又是保证管道工程质量的关键部位。在管道工程中,对高压管道接头的处理,有一套成熟的工艺,能够保证良好的封闭性。然而对内水压小于0.5公斤/厘米~2的井灌区的低压管道接头,往往以为技术要求不高而被忽视。一些井灌区输水管道使用的主要问题是接头漏水。几百亩地上铺设管道后,因接头未处理好而不能使用的例子也屡见不鲜。但众多的教训,是接头漏水降低了水的有效利用率,增加了电耗,提高了管道运行费用,影响了灌水效益。地下输水管道接头数量多,一处漏水就
Pipe joint is the main process of pipeline construction, it is also a key part to ensure the quality of pipeline engineering. In the pipeline project, the high-pressure pipe joints, there is a mature technology, to ensure good sealing. However, for low-pressure pipe joints in well irrigation areas where the internal pressure is less than 0.5 kg / cm 2, the technical requirements are often overlooked. Some of the main problems with the use of water pipelines in well irrigation areas are joint leaks. A few hundred acres of laying the ground after the pipe, due to unfinished joints can not be used examples are not uncommon. However, many of the lessons are leakage of joints reduces the effective utilization of water, increased power consumption, increased pipeline operating costs, affecting irrigation efficiency. Underground pipe joints a large number of leaks on the one