Cold salt heat preservation system

Abstract

The invention discloses a cold salt heat preservation system. The cold salt heat preservation system comprises a heat preservation cold salt tank, a pipeline heat preservation system and a rotating connection port heat preservation box. An upwards-inclined stirring paddle and a downwards-inclined stirring paddle are arranged in the heat preservation cold salt tank so that molten salt at the upperlayer and molten salt at the lower layer can be fully and convectively mixed, the molten salt at the upper layer and the molten salt at the lower layer in a tank body can be fully and uniformly mixed,the temperature of the molten salt is ensured to be uniform and consistent, and therefore, the working stability of a power generation device is facilitated; the pipeline heat preservation system isdivided into an overground electromagnetic heat preservation mode and an underground heat preservation mode utilizing natural geothermal resources for heat preservation, so that the molten salt keepsstable temperature all the time in the transportation process; the two ends of the rotating connecting port heat preservation box are each connected with a reflector frame structure so that excessiveheat can not be lost when the molten salt is transferred between two heat collectors, and the heat transfer efficiency of the molten salt is ensured.

Description

technical field [0001] The invention belongs to the field of heat preservation devices, in particular to a cold salt heat preservation system. 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 perfor...

AI Technical Summary

Problems solved by technology

There is often heat loss during the heat transfer process between the molten salt tank and the reflector

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