Liquefied air energy storage system coupled with LNG cold energy and ORC

The utility model discloses a liquefied air energy storage system coupling LNG cold energy and ORC. The liquefied air energy storage system comprises an energy storage unit, an energy release unit and an ORC unit. The energy storage unit comprises a multi-stream heat exchanger, a compressor unit, a...

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Bibliographische Detailangaben
Hauptverfasser:	WU XIAONAN, SU YAOGANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS ENGINE PLANTS IN GENERAL ENGINE PLANTS NOT OTHERWISE PROVIDED FOR ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS MACHINES OR ENGINES IN GENERAL MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING MIXTURES BY PRESSURE AND COLD TREATMENT NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES REFRIGERATION OR COOLING STEAM ACCUMULATORS STEAM ENGINE PLANTS STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a liquefied air energy storage system coupling LNG cold energy and ORC. The liquefied air energy storage system comprises an energy storage unit, an energy release unit and an ORC unit. The energy storage unit comprises a multi-stream heat exchanger, a compressor unit, a propane storage tank and a liquid air storage tank. The energy releasing unit comprises a low-temperature pump, a seawater heater and an expansion unit. And the ORC unit is connected with the energy storage unit so as to utilize the low-grade cold energy of the LNG. In the electricity consumption trough period, the cold energy of the LNG and the cold energy of the liquid propane jointly liquefy the compressed air, and energy is stored. In the peak period of electricity utilization, liquid air releases energy to generate electricity, and propane recycles cold energy of LNG. Compared with a traditional liquefied air energy storage system, cold energy continuously released by LNG in an all-weather mode can be stored,