Energy storage peak regulation system and method based on solid oxide hydrogen production

A solid oxide and energy storage technology, applied to cells, electrolytic components, electrolytic processes, etc., can solve problems such as large peak-to-valley differences, uncontrollable power, and strong volatility, so as to improve peak-shaving ability and speed, and avoid partial The effect of overheating and increasing work ability

Pending Publication Date: 2022-07-22
XIAN THERMAL POWER RES INST CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wind power, photovoltaic power generation and other power generation have problems such as strong volatility, large peak-to-valley differences, and uncontrollable power consumption. In some areas, serious wind and light abandonment phenomena have occurred.

Method used

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  • Energy storage peak regulation system and method based on solid oxide hydrogen production

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Embodiment Construction

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] see figure 1 , the present invention includes a solid oxide fuel cell 1, the solid oxide fuel cell 1 is connected to the main steam pipeline of the unit and the generator 2 of the unit, the solid oxide fuel cell 1 is filled with an electrolyte 16, and the solid oxide fuel cell 1 includes The anode 3 and the cathode 4, the cathode 4 is connected to the hydrogen gas storage tank 5, the anode 3 is connected to the oxygen gas storage tank 6, the hydrogen gas storage tank 5 and the oxygen gas storage tank 6 are connected to the catalytic combustion chamber 7, and the high temperature steam pipeline of the catalytic combustion chamber 7 The heat exchanger 13 is connected, the cold source of the heat exchanger 13 is connected to the feed water, and the heat source of the heat exchanger 13 is the high temperature steam of the catalytic combustion chamber 7 . The heat exc...

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Abstract

The invention discloses an energy storage peak regulation system based on solid oxide hydrogen production, when a unit is in a low ebb of electricity consumption, steam is extracted from main steam of the unit to serve as a raw material for solid oxide hydrogen production and enters a solid oxide fuel cell, and electricity is accessed from a generator to serve as high-temperature steam electrolysis electricity; after electrolysis, hydrogen generated by the cathode is stored in a hydrogen storage tank, and oxygen generated by the anode is stored in an oxygen storage tank. When the unit is in a power utilization peak, hydrogen and oxygen in the gas storage tank are combusted in the catalytic combustion chamber to generate high-temperature steam, the high-temperature steam is pressurized and then supplemented to an inlet of the medium-pressure cylinder, the power capacity of the medium-pressure cylinder and the low-pressure cylinder is increased, the power capacity is increased, and the frequency modulation response rate of a main engine is increased. Main steam is adopted as an electrolysis raw material, the temperature needed by reaction is directly provided, the system is simplified, and meanwhile local overtemperature in the furnace is effectively avoided; hydrogen is adopted as an energy storage medium to be clean and efficient.

Description

technical field [0001] The invention belongs to the field of thermal power generation, and in particular relates to a system and method for energy storage peak regulation based on solid oxide hydrogen production. Background technique [0002] At present, the power consumption structure has undergone great changes, and the peak-to-valley difference of the power grid is increasing; coupled with the rapid increase in the power generation of new energy sources such as wind power and photovoltaics, the demand for the peak-shaving capacity and operation flexibility of thermal power units is getting higher and higher. As a result, more and more high-parameter and large-capacity thermal power units shoulder the responsibility of power grid peak regulation. Wind power, photovoltaic and other power generation have problems such as strong fluctuation, large peak-to-valley difference, and uncontrollable power consumption. In some areas, serious wind and light abandonment has occurred. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B9/67C25B9/65C25B9/60C25B1/042
CPCC25B9/67C25B9/65C25B9/60C25B1/042
Inventor 薛朝囡许朋江居文平马汀山石慧王妍邓佳张建元吕凯
Owner XIAN THERMAL POWER RES INST CO LTD
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