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86 512-81666096199、structure and characteristics of ethylene low temperature storage tank - doer equipment
classification：industry publishtime：2022-04-20 14:05:21
structure and characteristics of ethylene low temperature storage tank - doer equipment
ethylene low.temperature storage tank has complex structure, high construction quality standard and certain construction difficulty. what are the structures and characteristics of large ethylene low-temperature full capacity tank?
the flat bottom cylindrical bimetallic full capacity tank structure is adopted, and the main design standard of the full capacity tank is api620-2018 design and construction of large welded low pressure storage tank and the requirements of the buyer's documents; the tank structure adopts the following forms:
double layer metal wall, flat bottom, inner suspended roof, outer vault, vertical cylinder and full containment structure, which are composed of main container, secondary container, bottom insulation, interlayer insulation, ceiling insulation, steel structure on the top of storage tank, tower ladder, equipment valve, electrical instrument and foundation platform.
ethylene liquid is stored in the inner tank (main container) of the full capacity tank, and the outer tank (secondary container) is used to contain evaporated gas and cold insulation materials. when the inner tank leaks, the outer tank can effectively store some ethylene liquid. the inner and outer tanks are flat bottomed, cylindrical metal tanks. the inner tank top is a suspended ceiling type, suspended on the outer tank vault support structure by suspenders. the outer tank top is a spherical vault, and the top support structure is a ribbed ring grid. the foundation of ethylene storage tank adopts concrete elevated bearing platform structure.
the suspended ceiling structure of bimetallic full capacity tank has the following advantages:
① the full capacity tank structure ensures that in case of leakage of the inner tank, the outer tank can effectively store some ethylene liquid, and the evaporated gas can be recovered through the recovery pipeline or sent to the flare.
② the full capacity tank structure has the least fire separation and high land utilization rate according to the specification requirements.
③ the internal positive pressure and interlayer vacuum load need not be considered in the design of the inner tank. in case of overpressure or vacuum accident, the inner tank will not be affected, and the safety is higher.
④ the pipe compensation in the interlayer need not be considered for the connection of ceiling structure. for the inner tank with vault structure, both ends of the pipeline are fixedly connected with the inner tank and the outer tank respectively, while for the suspended ceiling tank, only one end of the pipeline is fixed on the top of the outer tank, and the other end can expand and contract freely.
for more information, please contact doer equipment. the following is the contact hotline: 0512-81666096!
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