ISO 23251:2006 石油、石化和天然气工业 泄压和减压系统

标准编号：ISO 23251:2006

中文名称：石油、石化和天然气工业 泄压和减压系统

英文名称：Petroleum, petrochemical and natural gas industries — Pressure-relieving and depressuring systems

发布日期：2006-08

标准范围

ISO 23251:2006适用于减压和蒸汽减压系统。虽然主要用于炼油厂，但也适用于石化设施、天然气厂、液化天然气（LNG）设施以及石油和天然气生产设施。提供的信息旨在帮助选择最适合各种安装所涉及的风险和环境的系统。ISO 23251:2006旨在补充ISO 4126或API RP 520-1中规定的建立设计基础的实践。ISO 23251:2006规定了检查超压主要原因的要求和指南；以及确定个人的缓解率；选择和设计处理系统，包括管道、容器、火炬和排气管等部件。ISO 23251:2006不适用于直燃蒸汽锅炉。

ISO 23251:2006 is applicable to pressure-relieving and vapour-depressuring systems. Although intended for use primarily in oil refineries, it is also applicable to petrochemical facilities, gas plants, liquefied natural gas (LNG) facilities and oil and gas production facilities. The information provided is designed to aid in the selection of the system that is most appropriate for the risks and circumstances involved in various installations. ISO 23251:2006 is intended to supplement the practices set forth in ISO 4126 or API RP 520-1 for establishing a basis of design.ISO 23251:2006 specifies requirements and gives guidelines for examining the principal causes of overpressure; and determining individual relieving rates; and selecting and designing disposal systems, including such component parts as piping, vessels, flares, and vent stacks.ISO 23251:2006 does not apply to direct-fired steam boilers.

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