Low-temperature liquid gas memory device and control method thereof
A storage device, liquefied gas technology, applied in gas/liquid distribution and storage, container filling method, container discharge method, etc. cost, reduce power consumption, optimize the effect of energy balance
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[0011] Referring to Fig. 1, the present invention includes a receiving system 1, a storage system 2, an external transportation system 3, a BOG reliquefaction system 4 and a tail gas incineration system 5, and the BOG reliquefaction system 4 includes an ethylene compression system 7, a propylene refrigeration unit 8, an ethylene Condenser E-403, ethylene cooler E-401, condensate receiver V-403, ethylene flash tank V-404 and cold energy recovery device 6. Cold energy recovery device 6 is composed of ethylene precooler E-404 and ethylene economizer E-405. The feature of the present invention is that the cold energy recovery device 6 is set in parallel with the conventional reliquefaction flow path (composed of the propylene refrigeration unit 8, the ethylene condenser E-403, the ethylene cooler E-401, and the condensate receiver V-403) In this way, the refrigerating unit and the cold energy recovery device can be operated independently or simultaneously, which increases the flex...
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