Solid-state fused salt energy storage tank

Abstract

The invention discloses a solid-state fused salt energy storage tank. Structural design is reasonable, the interior of the tank is divided into a heating region and a heat supply region from top to bottom, an efficient fused salt conveying device is arranged between the heating region and the heat supply region, in addition to realization of cyclic heating and heat supply on solid-state fused salt, the phenomenon of fused salt hardening can be prevented through the stirring effect, the efficiency is improved, and the fused salt is kept in a solid state. According to the novel fused salt tank,fused salt internal heat supply is adopted, heat supply is convenient and efficient, and severe heat loss of the fused salt can be effectively prevented; feeding is directly conducted through a feeding port, the fused salt is not conveyed through a pipeline, the problem of blockage of the conveying pipeline is directly avoided, and the practicability is high; in addition, the heating region of thesolid-state fused salt energy storage tank is provided with a temperature detection and sensing system, a temperature can be detected, internal operation work of the fused salt tank is flexibly dominated, and a reference instruction is provided for internal working distribution of the fused salt; and meanwhile, a protective cover is adopted by the tank to directly isolate the fused salt, so thatthe problems existing in an existing fused salt tank can be directly avoided, and use is more convenient.

Description

technical field [0001] The invention relates to the technical field of energy storage, in particular to a solid molten salt energy storage tank. Background technique [0002] As energy consumption becomes more and more serious, photovoltaics, as a hot topic of renewable energy, have attracted much attention. However, due to the weak infrastructure of the national grid in Northwest China, the phenomenon of photovoltaic power generation system curtailment is serious, and the curtailment rate has remained high, which has become a technical problem for the development of photovoltaics. [0003] The photovoltaic molten salt energy storage technology solution proposed for the above technical problems can effectively solve the problem of high light rejection rate and is a booster for the large-scale development of photovoltaic power generation systems. Therefore, molten salt storage equipment has become the core equipment of this technology, but the existing molten salt tanks stil...

AI Technical Summary

Problems solved by technology

[0004] (1) Structural defect of molten salt tank: the existing molten salt tank is only for the preservation of liquid molten salt, and the preservation structure inside the molten salt tank does not match the preservation structure of solid molten salt;

[0005] (2) Insulation defect of the molten salt tank: the existing molten salt tank cannot be operated at a constant temperature, and the local temperature of the molten salt drops too fast, resulting in the solidification of the molten salt and damage to the equipment; and the poor fluidity of the molten salt, which cannot be heated evenly;

[0006] (3) Molten salt cannot be circulated: the molten salt in the molten salt tank is liquid molten salt, but there is no circulation device for solid molten salt, it is inconvenient to heat, and hardening problems will occur, causing damage to equipment

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