Method for assisting deep peak regulation of thermal power generating unit and fused salt energy storage system

• Main Authors: LIU HEFANG, CHEN QICHAO
• Format: Patent
• Language: Chinese; English
• Published: 10.10.2023
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES; 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; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ACCUMULATORS; STEAM ENGINE PLANTS; STEAM ENGINES; WEAPONS

The invention relates to a method for assisting in deep peak regulation of a thermal power generating unit. The method comprises the steps of data acquisition, data preprocessing, actual load calculation, condition judgment, multi-point recording, data calculation, data comparison and feedback, and output of comprehensive cost in operation time, operation income of deep peak regulation and standard deviation of load fluctuation. The invention further relates to a fused salt energy storage system which comprises an energy storage unit, a heat exchange system and a controller, the energy storage unit comprises a high-temperature fused salt tank, a high-temperature fused salt pump, a low-temperature fused salt tank and a low-temperature fused salt pump, and the heat exchange system comprises a fused salt flue gas heat exchanger, an air extractor and a water heat release device. Wherein the water heat release device comprises a cold water tank, a first water pump, a deaerator, a second water pump, a preheater, an