LDAR is an important measure for pollution control of VOCs emission source leakage at dynamic and static sealing points of petrochemical equipment in China. Current LDAR is divided into three links: project establishment, field detection and leakage maintenance. The commonly used statistical methods of sealing points basic information include"listing method, picture method and P&ID diagram identification method", but they are not applicable to the basic information statistics of pipe row sealing points. To solve this problem, this paper puts forward the reasonable organization work and innovation practice coding method. It is not only helpful for the smooth development of basic information statistics of pipe row sealing points, but also helpful for the follow-up on-site detection and leakage maintenance. It is easy to draw the overall P&ID diagram of each pipeline in the pipe row through layout of gantry frame, view of direction of gantry frame, code tables for sealing points within gantry frame and code tables for sealing points between gantry frames. Therefore, it is beneficial for enterprise personnel to be familiar with the flow of pipe arrangement and make clear the energy and material connection of each device. It can optimize the process switching scheme and reduce the risk of process switching error, so as to reduce the probability of production accidents.%LDAR工作是我国石化行业设备动静密封点泄漏VOCs排放源项污染管控的重要举措.现行LDAR工作分为项目建立、现场检测和泄漏维修3个环节.常用的密封点基础信息统计方法有挂牌法、拍照法和P&ID图标识法, 但都不适用于管排密封点基础信息统计.为解决这一问题, 提出了合理组织统计工作和创新实践编码法的建议.不仅有助于管排密封点基础信息统计顺利开展, 同时有利于后续现场检测和泄漏维修的开展.通过龙门架布局图、龙门架方向视图、龙门架内密封点编码表和龙门架间密封点编码表, 可以轻松绘制管排中每条管线的整体P&ID图, 有利于企业人员熟悉管排流程, 明确各装置的能量和物质联系.可以优化企业流程切换方案和降低流程切换错误的风险, 减少企业生产事故发生的概率.
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