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Thermal control method in hydrogen energy storage system, and control system thereof

A heat control and hydrogen energy storage technology, which is applied in the fields of final product manufacturing, sustainable manufacturing/processing, fuel cells, etc., can solve the problem of low heat utilization rate of hydrogen energy storage system, so as to improve heat utilization rate and ensure stable and effective sequence effect

Active Publication Date: 2017-04-19
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, what the present invention is to solve is the defect of low heat utilization rate in the hydrogen energy storage system, and further provides a heat control method and a control system in the hydrogen energy storage system with high heat utilization rate and stable hydrogen energy storage system

Method used

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  • Thermal control method in hydrogen energy storage system, and control system thereof

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Experimental program
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Effect test

Embodiment 1

[0054] This implementation provides a thermal control method in a hydrogen energy storage system. The heat control method comprises the steps of:

[0055] S1, using two sets of hydrogen production capacity of 40Nm 3 / h, the mass fraction is 30% KOH solution alkaline electrolyzer composition hydrogen production device, start the hydrogen production device, collect the temperature of the electrolyte in it and the temperature of tap water in the first liquid storage tank, when the temperature of tap water detected When it is higher than the temperature of the electrolyte, start the first water circulation pump, the fourth circulation pump and the fifth circulation pump, and open the first shut-off valve, the second shut-off valve and the third shut-off valve, so that the tap water passes through the plate heat exchanger and the hydrogen production The device exchanges heat and heats up the electrolyte; when the temperature of the electrolyte is higher than the tap water temperat...

Embodiment 2

[0059] This implementation provides a thermal control method in a hydrogen energy storage system. The heat control method comprises the steps of:

[0060] S1, using two sets of hydrogen production capacity of 40Nm 3 / h, the electrolyte is a hydrogen production device composed of Nafion's solid electrolyte electrolyzer, start the hydrogen production device, collect the temperature of the solid electrolyte in it and the temperature of the tap water in the first liquid storage tank, when the temperature of the detected tap water is greater than that of the solid electrolyte temperature, start the first water circulation pump, the fourth circulation pump and the fifth circulation pump, and open the first shut-off valve, the second shut-off valve and the third shut-off valve, so that the tap water can exchange heat with the hydrogen production device through the plate heat exchanger, Heat up the electrolytic cell; when the temperature of the electrolytic cell is higher than the ta...

Embodiment 3

[0064] This implementation provides a thermal control method in a hydrogen energy storage system. The heat control method comprises the steps of:

[0065] S1, two sets of hydrogen production are used to produce 40Nm 3 / h, the hydrogen pressure is 3MPa, and the hydrogen production device is composed of an alkaline electrolyzer with a mass fraction of 22.2% NaOH solution. Start the hydrogen production device, and collect the temperature of the electrolyte in it and the temperature of the heat exchange oil in the first liquid storage tank. , when it is detected that the temperature of the heat exchange oil is higher than the temperature of the electrolyte, start the first circulation pump, the fourth circulation pump and the fifth circulation pump, and open the first stop valve, the second stop valve and the third stop valve, so that the exchange The hot oil exchanges heat with the hydrogen production device through the plate heat exchanger to heat up the electrolyte; when the t...

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Abstract

The invention discloses a thermal control method in a hydrogen energy storage system, and a control system thereof. The thermal control method comprises following steps successively: S1, water electrolysis is carried out so as to produce hydrogen; S2, the produced hydrogen is stored; S3, the produced hydrogen is released; and S4, the hydrogen is used for electricity generation; and at the same time, heat energy released in one or a plurality of steps of the steps S1, S2, and S4 is collected, and the step S3 is provided with the collected heat energy. The thermal control method and the corresponding control system are capable of adjusting heat energy supply-demand relation among hydrogen preparation, hydrogen storage, and hydrogen electricity generation subsystems, increasing heat energy utilization ratio of the hydrogen energy storage system, and ensuring stable and orderly running of the hydrogen energy storage system via in time adjusting of the heat energy supply-demand relation among the subsystems.

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 method in a hydrogen energy storage system and a control system thereof. 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 self-discharge. [0003] In the prior art, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04029H01M8/0432H01M8/04701H01M8/04044
CPCH01M8/04029H01M8/04074H01M8/0432H01M8/04358H01M8/04701Y02P70/50Y02E60/50
Inventor 赵波滕乐天刘锋肖宇牛萌赵鹏程杜兆龙
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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