標準號：ISO 23251-2006
中文標準名稱：石油、石化和天然氣工業.壓力.緩解和減少系統
英文標準名稱：Petroleum, petrochemical and natural gas industries - Pressure-relieving and depressuring systems
標準類型：E98;G93
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：E98;G93
國際標準分類號：75.180.20
適用范圍：This International Standard is applicable to pressure-relieving and vapour-depressuring systems. Althoughintended for use primarily in oil refineries, it is also applicable to petrochemical facilities, gas plants, liquefiednatural gas (LNG) facilities and oil and gas production facilities. The information provided is designed to aid inthe selection of the system that is most appropriate for the risks and circumstances involved in variousinstallations. This International Standard is intended to supplement the practices set forth in ISO 4126 orAPI RP 520-I for establishing a basis of design.This International Standard specifies requirements and gives guidelines for examining the principal causes ofoverpressure; and determining individual relieving rates; and selecting and designing disposal systems,including such component parts as piping, vessels, flares, and vent stacks. This International Standard doesnot apply to direct-fired steam boilers.Piping information pertinent to pressure-relieving systems is presented in 7.3.1.