Power generation system and sand heat storage device

• Main Authors: HAN CHAOHUI, SUN BING, WANG WENBIAO, CHOI JUNG-NAM
• Format: Patent
• Language: Chinese; English
• Published: 27.10.2023
• Subjects: BLASTING; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; ENGINE PLANTS IN GENERAL; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES; GENERATION; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; METHODS OF STEAM GENERATION; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ACCUMULATORS; STEAM BOILERS; STEAM ENGINE PLANTS; STEAM ENGINES; STEAM GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY; WEAPONS

The utility model relates to a power generation system which comprises a new energy power station, a power supply device and a sand heat storage device, and the sand heat storage device comprises a heat storage mechanism, a steam generation mechanism and a power generation mechanism. The heat storage mechanism comprises a storage tank storing sand and a heating assembly arranged in the storage tank, and heat generated by the heating assembly is transmitted into the sand to be stored. The steam generation mechanism converts heat stored in the sand into steam; the power generation mechanism generates electric energy through steam. According to the power generation system disclosed by the invention, the sand is used as a heat storage material for storing energy. The sand has the advantages of being easy to obtain, safe, non-toxic, stable in chemical property and easy to operate, the heat storage temperature of the sand can reach 1000 DEG C or above, and the heat storage energy is very high. In addition, the sand