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作为燃气管道附件,立管活接的主要作用是方便维修使用。从历年燃气管道各类漏气情况中统计显示,燃气立管活接漏气比例较大,而导致立管活接漏气主要原因是立管活接O型橡胶垫圈老化与破损。实践中,垫圈受诸多因素影响,包括环境(如腐蚀性)、温度(如高温、高湿)、压力(如压力的不稳定)、输送介质(如介质里的化学物)、施工安装(如安装过程中的损坏)以及不可抗力(如自然灾害的发生)等。这些都会让O型橡胶垫圈在短时间内出现故障和损坏。
As a gas pipe attachment, riser live the main role is to facilitate maintenance and use. Statistics from various gas pipeline leaks over the years show that the ratio of live risers to gas risers is relatively large, and the main reason for risking live risers is the aging and damage of the riser riser O-rings. In practice, gaskets are subject to many factors, including environmental (eg corrosive), temperature (eg high temperature, high humidity), pressure (eg pressure instability), conveying media (eg chemicals in media), construction and installation Damage during installation) and force majeure (such as natural disasters). These will make O-ring rubber gasket failure and damage in a short time.