標準號：BS EN 14620-1-2006
中文標準名稱：工作溫度0℃～-165℃液態氣體冷凍儲存用垂直圓柱平底鋼罐現場制造的設計和生產.總則
英文標準名稱：Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and -165 °C - General
標準類型：J74
發布日期：2006/12/29 12:00:00
實施日期：2006/12/29 12:00:00
中國標準分類號：J74
國際標準分類號：23.020.10
引用標準：EN 1991-1-4;EN 1991-1-6;EN 1992-1-1-2004;EN 1997-1-2004;EN 1998-1-2004
適用范圍：This European Standard is a specification for vertical, cylindrical tanks, built on site, above groundand of which the primary liquid container is made of steel. The secondary container, if applicable, maybe of steel or of concrete or a combination of both. An inner tank made only of pre-stressed concreteis excluded from the scope of this European Standard.This European Standard specifies principles and application rules for the structural design of the“containment” during construction, testing, commissioning, operation (accidental included), anddecommissioning. It does not address the requirements for ancillary equipment such as pumps,pumpwells, valves, piping, instrumentation, staircases etc. unless they can affect the structural designof the tank.This European Standard applies to storage tanks designed to store products, having an atmospheric boiling point below ambient temperature, in a dual phase, i.e. liquid and vapour. The equilibrium between liquid and vapour phases being maintained by cooling down the product to a temperature equal to, or just below, its atmospheric boiling point in combination with a slight overpressure in the storage tank.The maximum design pressure of the tanks covered by this European Standard is limited to 500 mbar. For higher pressures, reference can be made to EN 13445, Parts 1 to 5.The operating range of the gasses to be stored is between 0 °C and –165 °C. The tanks for the storage of liquefied oxygen, nitrogen and argon are excluded.The tanks are used to store large volumes of hydrocarbon products and ammonia with low temperature boiling points, generally called “Refrigerated Liquefied Gases” (RLG’s). Typical products stored in the tanks are: methane, ethane, propane, butane, ethylene, propylene, butadiene (this rangeincludes the LNG’s and LPG’s).NOTE Properties of the gases are given in Annex A.The requirements of this European Standard cannot cover all details of design and construction because of the variety of sizes and configurations that may be employed. Where complete requirements for a specific design are not provided, the intention is for the designer, subject to approval of the purchaser's authorized representative, to provide design and details that are as safeas those laid out in this European Standard.This European Standard specifies general requirements for the tank concept, selection and general design considerations.