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Solar supercritical carbon dioxide cycle power generation coupled with steam electrolysis hydrogen production system

A carbon dioxide and water vapor technology, applied in solar thermal power generation, solar heating system, solar thermal energy and other directions, can solve the problems of primary energy consumption, complex process, low efficiency, etc., to reduce the cost of hydrogen production, broaden the application field, and achieve high thermal efficiency. Effect

Active Publication Date: 2019-06-14
JIMEI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the mature hydrogen production technologies are mainly fossil fuel hydrogen production and water electrolysis hydrogen production. Mineral fuel hydrogen production consumes primary energy, the process is complicated, and the pollution is serious, which fails to solve energy and environmental problems. Water electrolysis hydrogen production is a completely clean production method. The hydrogen method has the characteristics of high product purity and easy operation. At the same time, the water resource is relatively abundant, but the energy consumption is high and the efficiency is low.

Method used

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  • Solar supercritical carbon dioxide cycle power generation coupled with steam electrolysis hydrogen production system
  • Solar supercritical carbon dioxide cycle power generation coupled with steam electrolysis hydrogen production system

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Embodiment Construction

[0017] like figure 1 As shown, the present invention is a solar supercritical carbon dioxide cycle power generation coupled water vapor electrolysis hydrogen production system, including a compressor 1, a regenerator 2, a preheater 3, a high-concentration solar receiver 4, a steam superheater 5, a high-pressure Carbon dioxide gas turbine 6, reheater 7, low-pressure carbon dioxide gas turbine 8, generator 9, cooler 10, steam generator 11, solid oxide electrolytic cell 12, water supply pipeline 13, hydrogen pipeline 14, oxygen pipeline 15.

[0018] The outlet of the compressor 1 is divided into two paths through pipelines: one path is connected to the inlet of the tube side of the regenerator 2, and the other path is connected to the inlet of the shell side of the preheater 3; the tube side of the regenerator 2 The outlet and the shell-side outlet of the preheater 3 are merged into one road and connected to the working fluid inlet of the high-concentration solar receiver 4 throu...

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Abstract

The invention discloses a solar supercritical carbon dioxide cycle power generation and steam electrolysis hydrogen production coupled system comprising a compressor, a heat regenerator, a preheater, a high-concentration solar energy receiver, a steam superheater, a high-pressure carbon dioxide turbine, a reheater, a low-pressure carbon dioxide turbine, a generator, a cooler, a steam generator and a solid oxide electrolytic bath. The solar thermal power generation system adopts a supercritical carbon dioxide cycle and provides a high-temperature heat source and low-cost electricity for steam electrolysis hydrogen. Waste heat of steam electrolysis hydrogen production is recycled through the reheater and the preheater, so that the cycle thermal efficiency of the solar thermal power generation system is improved, and the grade of the thermal energy output by the solar thermal power generation system is improved. In addition, the gas flow entering the regenerator is reduced in a flow distributing manner, and the problem that the regenerator generates a heat exchange pinch point because the specific heat capacities of the fluid on the high-pressure side and the fluid on the low-pressure side are different is solved. The solar supercritical carbon dioxide cycle power generation and steam electrolysis hydrogen production coupled system has the advantages of being high in cycle thermal efficiency, high in energy utilization rate, low in hydrogen production cost and low in power generation cost.

Description

technical field [0001] The invention belongs to the fields of solar thermal power generation technology and water electrolysis hydrogen production technology, and in particular relates to a solar supercritical carbon dioxide cycle power generation coupled water vapor electrolysis hydrogen production system. Background technique [0002] Solar energy is an inexhaustible clean and renewable energy source. In the face of energy shortage and environmental pollution worldwide, solar energy has become the main body of energy development in the future, and solar power generation will also become a major source of energy in the future. The workhorse of scale power. Solar power generation is divided into solar thermal power generation and photovoltaic power generation. According to the characteristics of scale, the future development potential of solar thermal power generation is greater than that of photovoltaic power generation industry. At present, the commercial solar thermal po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03G6/06F01K25/08F01K7/32F01D15/10F01D15/08C25B1/04F24S20/60
CPCC25B1/04F01D15/08F01D15/10F01K7/32F01K25/08F03G6/06F24S10/00Y02E10/44Y02E10/46Y02E60/36Y02P20/129Y02P20/133Y02P20/54
Inventor 陈志强何宏舟张亮
Owner JIMEI UNIV
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