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ISO 21013-3:2016現行

Cryogenic vessels - Pressure-relief accessories for cryogenic service Part 3: Sizing and capacity determination

出版：International Organization for Standardization

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基本信息
標準編號： ISO 21013-3:2016
發布時間：2016/5/12 0:00:00
標準類別：Standard
出版單位：International Organization for Standardization
標準頁數：35
標準簡介

This part ofISO21013provides separate calculation methods for determining the required mass flow to be relieved for each of the following specified conditions:—vacuum-insulated vessels with insulation system (outer jacket + insulating material) intact under normal vacuum, outer jacket at ambient temperature, inner vessel at temperature of the contents at the specified relieving pressure;—vacuum-insulated vessels with insulation system (outer jacket + insulating material) intact under normal vacuum, outer jacket at ambient temperature, inner vessel at temperature of the contents at the specified relieving pressure, pressure regulator of the pressure build-up system functioning at full potential—vacuum or non-vacuum-insulated vessels with insulation system remaining in place, but with loss of vacuum in the case of vacuum-insulated vessels, outer jacket at ambient temperature, inner vessel at temperature of the contents at the specified relieving pressure or vacuum or non-vacuum-insulated vessels with insulation system remaining fully or partially in place, but with loss of vacuum in the case of vacuum-insulated vessels, fire engulfment, inner vessel at temperature of the contents at the specified relieving pressure;—vacuum-insulated vessels containing fluids with saturation temperature below 75K at 1bar with insulation system remaining in place, but with loss of vacuum with air or nitrogen in the vacuum space;—vacuum insulated vessels containing fluids with saturation temperature below 75K at 1bar with insulation system remaining in place, but with loss of vacuum with air or nitrogen in the vacuum space with fire engulfment;—vessels with insulation system totally lost and fire engulfment.