.10:2021 燃烧火炬流量测量

[中文适用范围]： 测量流向火炬的流量在账目核算、物料平衡、能源守恒、减排以及法规合规等方面具有重要意义。火炬作为安全泄放系统，通常接收高度不可预测的流量速率和变化多端的组成成分；出于安全考虑，火炬系统往往难以为了测量需要而短期停用。本标准涵盖流向火炬的流量测量，内容包括：应用考量；火炬流量计及相关仪表的选型标准及其他相关因素；安装考量；火炬流量测量技术的局限性；校准；运行；不确定度及误差传递；计算方法。本标准的范围不包括分析仪器。第二版增补了示踪技术的应用讨论，并引用了API MPMS第22.3章《火炬气体计量测试规程》。 [外文原描述]： Measurement of flow to flares is important from accounting, mass balance, energy conservation, emissions reduction, and regulatory perspectives. Flares are safety relief systems that typically receive highly unpredictable rates of flow and varying compositions, and for safety reasons do not often lend themselves to being taken out of service to accommodate measurement concerns, even for short periods. The standard addresses measurement of flow to flares, and includes: — application considerations; — selection criteria and other considerations for flare meters and related instrumentation; — installation considerations; — limitations of flare measurement technologies; — calibration; — operation; — uncertainty and propagation of error; — calculations. The scope of this standard does not include analytical instrumentation. This second edition includes discussion on using tracer technology and incorporates reference to API MPMS Chapter 22.3, Testing Protocol for Flare Gas Metering, another