Thermal control system and application in a hydrogen energy storage system

Abstract

The invention discloses a heat control system in a hydrogen energy storage system and an application and belongs to the technical field of energy conversion and energy storage. The heat control system comprises a hydrogen generation device, a hydrogen storage device and a hydrogen power generation device which are sequentially connected as well as a first cold medium circulating device, a second cold medium circulating device and a third cold medium circulating device, wherein the first cold medium circulating device is used for providing a first cold medium and recovering the first cold medium after heat absorption and connected with the hydrogen production device; the second cold medium circulating device is connected with the hydrogen power generation device; the third cold medium circulating device is used for providing a third cold medium and recovering the third cold medium after heat absorption and connected with the hydrogen storage device; the second cold medium circulating device comprises a first circulating loop and a second circulating loop which are arranged in parallel, a heat source liquid cooling device is arranged on the first circulating loop; a second heat exchanger is arranged on the second circulating loop. The system is high in heat utilization rate and the hydrogen energy storage system is stable.

Description

technical field [0001] The invention belongs to the technical field of energy conversion and energy storage, and in particular relates to a heat control system in a hydrogen energy storage system with high heat utilization rate and stable hydrogen energy storage system. Background technique [0002] As a clean, efficient and sustainable energy, hydrogen energy has received extensive attention. It can be used as a carrier for renewable energy consumption, from renewable energy to hydrogen and then through the hydrogen generation subsystem to generate electricity, that is, hydrogen energy storage. The hydrogen energy storage has many advantages as follows: 1) The electrolysis process of the hydrogen energy storage system is a cycle from green energy to green energy, which is sustainable; 2) The energy storage density is high, which can reach more than 13000Wh / kg, which is about the same as that of a lithium battery. 100 times; 3) Long life, suitable for long-term storage, no ...

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Problems solved by technology

[0006] For this reason, what the present invention is to solve is that in the prior art, there is no comprehensive utilization of the heat released by the subsystems of hydrogen production, hydrogen storage and hydrogen power generation from the perspective of the hydrogen energy storage system, resulting in a low heat utilization rate of the entire hydrogen energy storage system , and the cooling loop cannot be selected according to the temperature classification of the outlet coolant of the fuel cell for energy recovery, and the defect of low energy conversion efficiency is to provide a heat utilization rate in the hydrogen energy storage system with high heat utilization rate and stable hydrogen energy storage system. Control System and Application

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