天然气放空分液罐的应用及改进

摘要

作业区、处理厂分别在各站点安装了分液罐,使天然气在放空前实现了进一步气液分离,并且在安装后做了现场性能测验及效果评价.结果表明:分液罐在放空解堵应用过程中有一定的分液能力,运行较为平稳,但由于天然气放空速度与其分离液量存在矛盾,分液效果不明显,在水化物堵塞阻火器或井站故障紧急放空情况下运行存在严重的安全隐患,文章对分液罐及其辅助设备进行改进,提出了合理化的建议.%The sub-tank were installed at each site of operation area and treatment plant, so the natural gas could achieve further gas-liquid separator before be venting, and the field performance tests and evaluation after installation was conducted. The results show that: the sub-tank has the ability to dispense in venting de plugging application process, its operation is more smoothly, but there are contradictions between gas venting speed and its separation of fluid volume, and the dispense is ineffective, and there are serious security risk under the case of hydrates clogged flame arrester or well the run station failure emergency venting. So this article improves the sub-tank and its ancillary equipment and proposes rational proposal.