【摘要】 通过试验研究,比较了厚白漆和聚四氟乙烯生料带这两种室内燃气管线螺纹接口密封材料对天然气的适应能力,同时对保持原状和经过干燥处理的埋地燃气管道橡胶密封圈进行了力学性能测试,考察了埋地管线橡胶密封圈经过多年煤气运行环境后力学性能的变化以及密封圈对天然气工作环境的适应能力,并对在役橡胶密封圈的剩余使用寿命进行了预测。更多还原

【Abstract】 A comparison was made of the adaptabilities of the thick white paint and the PTFE raw material belt used to seal the nipple of the indoor gas pipelines through tests.Meanwhile,a mechanical performance measurement was conducted of the rubber seal rings of the buries gas pipelines dried or in a raw condition,the changes of mechanical performance were examined of the rubber seal rings of the buried gas pipelines for coal gas operation with applications of many years and the adaptability of the rings for a natural gas condition.It was predicted of the residual service life of the in-service rubber seal rings.更多还原