SHT 3007-2014 Code for Design of Tank Areas in Petrochemical Storage and Transportation Systems: Issues related to flexible connections and when hose connections should not be used?
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SHT 3007-2014 Code for Design of Tank Areas in Petrochemical Storage and Transportation Systems 6.3.5 Pipelines connected to storage tanks shall use flexible connections, and shall meet the requirements for seismic resistance and prevention of tank settlement. Hose connections should not be used. (GB50160-6.2.25 The inlet and outlet pipes of storage tanks shall be equipped with flexible connections. ;7.2.18 Pipelines for liquefied hydrocarbons, liquid chlorine, and liquid ammonia shall not be connected using hoses, and pipelines for flammable liquids shall not be connected using non-metallic hoses. ) What other methods can be used for flexible connections besides metal hoses? ? ?
Bellows count as well; I’m not sure if flexible hoses count as well
Similar to flexible connections in thermal pipelines
Metal bellows also constitute a flexible connection, meeting the requirements of regulations for liquefied hydrocarbon pipelines
Thank you for sharing. Why can’t a metal hose be used?
Natural compensation: either the first support shares a foundation with the storage tank, or the first support is at a sufficient distance from the tank’s nozzle
What was said on the sixth floor is correct: the foundation and the first pipe rack share the same foundation, while a flexible metal hose is needed for the second pipe rack. The settlement of large storage tanks is quite noticeable, and the length of this hose also needs to be determined based on that settlement amount.