Electric heating cold salt tank

Abstract

The invention discloses an electric heating cold salt tank which comprises a tank body, electric heaters, U-shaped heat exchange pipelines and a stirring device. An existing heating tank is improved,the electric heaters are arranged at the two ends of the tank body, a heat exchange structure is arranged at the bottom of the tank body, and the processes of uniform mixing and heat exchange are moreuniform through the stirring function of the stirring device. In the stirring device, a single motor is used for driving stirring paddles located at different positions in the tank body to carry outstirring, and the connecting manner between the stirring paddles and transmission rods provides more diversified stirring manners. Through the arrangement three stages of gears of a first transmissionwheel and a second transmission wheel, the motor can execute stirring at different rotating speeds. Through the arrangement of the upward-inclining stirring paddles and the downward-inclining stirring paddles, fused salt on the upper layer and the lower layer can be subjected to sufficient convective mixing, the fused salt on the upper layer and the lower layer in the tank body is sufficiently mixed uniformly, it is guaranteed that the temperature of the fused salt is uniform and consistent, and therefore the work stability of a power generation device is facilitated.

Description

technical field [0001] The invention belongs to the field of mechanical devices, in particular to an electrically heated cold salt tank. Background technique [0002] Molten salt energy storage technology can solve the problem of energy storage in solar thermal power generation. The technology of using molten salt energy storage directly uses electricity to heat the molten salt and store it. When needed, the molten salt releases heat, and the steam turbine converts it into Electric energy, or through the heat exchange device to release the heat stored in molten salt for heating, this makes it possible to use surplus electric energy for grid-level energy storage. The scalable energy storage technology that uses electric energy to directly heat molten salt is in the power storage market. Wide application will also help reduce the cost of solar thermal power station projects. As the key equipment in the molten salt energy storage technology, the molten salt tank's performance ...

AI Technical Summary

Problems solved by technology

At present, the problem with ordinary molten salt tanks, especially those with larger capacity, is that the temperature of the molten salt in the molten salt tank cannot be guaranteed to be balanced and consistent, and the inconsistency of the molten salt temperature will affect the stability of the power generation system.

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