输配水管道,尤其是较长距离的输水管道,平稳顺畅地排出管道气体,对管道的安全运行至关重要。实践证明,管道排气不畅,气水相间运行,是造成许多输配水管道大量爆管的主要原因;通过对我国目前常用的排气阀存在的技术缺陷,造成的后果分析,用户在选择排气阀中存在的几大误区的分析,提出了正确选用排气阀的方法。 Pipeline distribution, especially for longer distance pipelines, smooth and smooth discharge of pipeline gas, the safe operation of the pipeline is essential. Practice has proved that poor exhaust pipe, gas-water phase operation is caused by a large number of pipelines, a large number of pipeline explosion pipe the main reason; through the current exhaust valve commonly used in our country there are technical flaws, the consequences of the analysis, the user in the choice Exhaust valve in the analysis of several major errors, the correct choice of exhaust valve method.