Molten salt heat storage device

Abstract

The invention discloses a molten salt heat storage device. The molten salt heat storage device comprises a molten salt heat storage furnace, an oil storage tank, a plate heat exchanger and a heat-insulation water storage tank. The molten salt heat storage furnace comprises a furnace body and vertical pipes which are evenly arranged in the furnace body in a regular triangle or regular hexagon mode and used for packaging molten salt. Electric heating belts are wound on the outer walls of the vertical pipes. The furnace body is filled with conduction oil serving as heat exchange fluid. The oil storage tank is communicated with the molten salt heat storage furnace and used for storing the conduction oil. The molten salt heat storage furnace is communicated with the plate heat exchanger, and the plate heat exchanger is communicated with the heat-insulation water storage tank. According to the molten salt heat storage device, the molten salt is used as heat storage media, flowing is not needed, a molten salt pump is omitted, the structure is simple, and corrosion is smaller; the traditional high-temperature conduction oil is used for heat exchange; the cost is lower, and operation is easier; the vertical pipes used for packaging the molten salt are arranged in a special mode, so that heating is uniform, the efficiency is higher, the structure is reasonable, the efficiency is high, energy is saved, environmental friendliness and stability are achieved, and safety and reliability are achieved.

Description

technical field [0001] The invention relates to a molten salt heat storage device, which belongs to the technical field of heat storage systems. Background technique [0002] At present, in the existing molten salt heat storage device, the molten salt participates in the flow and circulation, which is easy to condense and block the molten salt pipeline. In addition, it is necessary to configure an auxiliary heating device to maintain a certain fluidity of the molten salt, which is more costly and difficult to operate. More complex. Contents of the invention [0003] Purpose: In order to overcome the deficiencies in the prior art, the present invention provides a molten salt heat storage device. [0004] Technical solution: In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: [0005] A molten salt heat storage device, characterized in that it includes a molten salt heat storage furnace, an oil storage tank,...

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Problems solved by technology

[0002] At present, in the existing molten salt heat storage device, the molten salt participates in the flow and circulation, which is easy to condense and block the molten salt pipeline. In addition, it is necessary to configure an auxiliary heating device to maintain a certain fluidity of the molten salt, which is more costly and difficult to operate. More complex

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