Waste heat recovery system based on fused salt heat storage

• Main Authors: SHI YANG, HOU XIANGSONG, ZHANG JUN, YU YIZHAO
• Format: Patent
• Language: Chinese; English
• Published: 30.04.2024
• Subjects: BLASTING; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE; FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL; FURNACES; 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; KILNS; LIGHTING; MECHANICAL ENGINEERING; METHODS OF STEAM GENERATION; OVENS; RANGES; RETORTS; STEAM BOILERS; STEAM GENERATION; VENTILATING; WEAPONS

The utility model relates to a waste heat recovery system based on fused salt heat storage, which comprises a flue type waste heat boiler, a high-temperature fused salt tank and a low-temperature fused salt tank, the high-temperature fused salt tank and the low-temperature fused salt tank are used for storing liquid fused salt, an outlet of the flue type waste heat boiler is connected with the high-temperature fused salt tank, and the low-temperature fused salt tank is connected with an inlet of the flue type waste heat boiler. A fused salt electric heating device and a fused salt-steam heat exchanger are arranged between the high-temperature fused salt tank and the low-temperature fused salt tank in parallel. When the system operates normally, an outlet of the high-temperature fused salt tank is connected with the fused salt-steam heat exchanger, and the fused salt electric heating device is separated from the system in a short-circuit mode. Before the system is started and/or when the system is maintained,