With the increasing maturity of wind power generation technology, large-scale development and utilization of wind energy has become a necessary strategic measure for China to develop and utilize new energy. China's installed wind power capacity ranks first in the world, but the on-grid electricity accounts for less than 2% of the total power generation. The molten salt heating system for wind power heating can solve the problem of wind curtailment encountered by wind power, convert it into heat energy for urban heating, reduce the use of fossil fuels, achieve zero emissions to reduce air pollution, and also solve the problem of melting and heating molten salt when the molten salt heat storage system runs for the first time and when the entire system is restarted after being drained.
The molten salt heating system for wind power heating can heat and melt the molten salt. The system adopts a circulating heating method with high heating efficiency; it is equipped with an electric heating furnace for circulating heating, and an electric auxiliary heating device is installed in the circulating storage tank to assist in heating the molten salt.The molten salt electric heating furnace in this system includes a heating chamber, in which a heating core is installed. The upper end of the heating core is connected to a wiring chamber, and baffle plates are symmetrically arranged in the heating chamber. The circulating storage tank includes an upper head, a tank body, and a lower head. The upper head is provided with a feeding port, a liquid level gauge, and a thermometer; the lower head is welded with a molten salt discharge pipeline, on which a valve is installed; the liquid level gauge and thermometer are inserted into the circulating storage tank and remain immersed in the molten salt for a long time. The electric auxiliary heating device includes a plug-in electric heating device and an electric heating wire, and the plug-in electric heating device is inserted into an auxiliary heating jacket tube.
The molten salt heating system belongs to the field of molten salt heating systems and is composed of a circulating heat storage device and a molten salt heating furnace connected through molten salt pipelines. Among them, the circulating heat storage device includes a circulating storage tank and an electric auxiliary heating device. The electric auxiliary heating device is arranged at the inner bottom of the circulating storage tank. A high-temperature molten salt pump is fixedly installed at the top of the circulating storage tank. The pump body of the high-temperature molten salt pump extends below the molten salt liquid level in the circulating storage tank. The liquid outlet end of the pump body is connected to the bottom end of the molten salt electric heating furnace through a molten salt pipeline. The liquid outlet end of the molten salt electric heating furnace is connected to the upper end of the circulating storage tank through a molten salt pipeline. The bottom end of the circulating storage tank is connected to a molten salt discharge pipeline. The utility model provides a molten salt heating system for wind power heating. The system can heat and melt the molten salt. The system adopts a circulating heating method with high heating efficiency; it is equipped with an electric heating furnace for circulating heating, and an electric auxiliary heating device is installed in the circulating storage tank to assist in heating the molten salt.
