A kind of valley electric energy storage device and using method thereof

Abstract

The invention discloses an off-peak electric energy storage device and a use method thereof. The off-peak electric energy storage device comprises a pipeline module, a water storage module, an energystorage module, a partition board, a lower housing, a heat insulation layer and an inner housing; the pipeline module comprises a circulating water inlet, a first ball valve, a second ball valve, a third ball valve, a circulating water pump, a hot water outlet, an upper shell, a tap water inlet and a fourth ball valve; the water storage module comprises a liquid level floating ball valve, a temperature controller, water, an electric heating pipe, a water inlet and an exhaust valve; and the energy storage module includes a phase change material, a heat-transferring coil, a heat-transferring coil inlet and a heat-transferring coil outlet. The device can use off-peak electric to achieve phase change energy storage, the functions are rich, and the integration is high. An electric heating heatstorage function and an electrical auxiliary heat release function are realized only through valve switching of the energy storage device, and the off-peak electric energy storage device has the characteristics of large energy storage density, stable outlet water temperature, easy and convenient use method and saving operating cost.

Description

technical field [0001] The invention belongs to the field of energy storage, and relates to an energy storage device, in particular to a valley power energy storage device and a use method thereof. Background technique [0002] In most areas of our country, a stepped electricity price policy has been implemented. During the daytime when the electricity consumption is at its peak, the electricity price is more expensive, and at the low peak stage of the electricity consumption load - at night, the electricity price is cheap. In addition, since the low power load at night also causes a lot of waste of power resources, it is currently a more feasible solution to make up for the time difference between energy supply and user side through energy storage. Storage of electric energy often requires batteries, resulting in high investment and operating costs for electricity storage, while storing heat can only be achieved through water or phase change materials, with low investment a...

AI Technical Summary

Problems solved by technology

Therefore, the current phase change energy storage device has a single function and low integration, and requires a large number of pipeline connections with external components, and the heating system is relatively complicated.

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