Disc type solar coupling SOEC (solid oxide electrolysis cell) electrolysis hydrogen production equipment and hydrogen production method

Abstract

The invention discloses disc type solar coupling SOEC (solid oxide electrolysis cell) electrolysis hydrogen production equipment and a hydrogen production method. The disc type solar coupling SOEC electrolysis hydrogen production equipment comprises a light intensity sensor, wherein the light intensity sensor is arranged on a collector, a condenser is arranged at the bottom of the collector, a disc type condensed light reflector is arranged at the lower part of the condenser, the disc type condensed light reflector is arranged on a sun-chasing power bearing box, and the sun-chasing power bearing box is arranged on a substrate; the light intensity sensor is connected with a controller inside the sun-chasing power bearing box; the collector is connected with a liquid metal heat exchanger through a union heat pipe, the liquid metal heat exchanger is connected with a heat exchanger, the bottom of the heat exchanger is connected with a water tank, the upper part of the heat exchanger is connected with an SOEC, and the SOEC is connected with an oxygen storage tank and a hydrogen storage tank. Solar energy is utilized, the current situation that the hydrogen production efficiency of solar energy is low at present is comprehensively considered, the technical thought of the SOEC is utilized, and optimization design is carried out for the problem of heat efficiency existing in high-temperature steam of high-temperature solid oxide electrode electrolysis at present, so that the equipment and the method disclosed by the invention are formed.

Description

technical field [0001] The invention relates to the technical field of solar heat collection and electrolytic hydrogen production, in particular to a dish-type solar energy coupling SOEC electrolytic hydrogen production equipment and a hydrogen production method. Background technique [0002] The commercial development and utilization of solar energy is an important development trend in the field of renewable energy. The International Energy Agency (IEA) predicts that solar power will account for more than 20% of the world's electricity supply by 2040. Concentrating solar thermal power generation technology, as an important way of solar energy utilization, has become one of the important directions of international solar technology development. In recent decades, after continuous research in some countries, various forms of solar thermal power generation systems have been developed. The single-stage capacity has developed from kilowatts to megawatts, and has entered the sta...

AI Technical Summary

Problems solved by technology

The main problem of solar thermochemical cycle hydrogen production is the reduction of intermediates. Even if it is reduced by 99.9% to 99.99%, it needs to be supplemented by 0.1% to 0.01%, which will affect the price of hydrogen and cause environmental pollution.

This method does not consume any additional energy, so it is very economical and environmentally friendly

However, the technology of directly using solar energy to irradiate photoelectrodes to decompose water to produce hydrogen is still limited in two aspects. One is the material life caused by the photocorrosion of materials, and the other is that only a small part of solar radiation is used in the whole process of hydrogen production. Short-wave radiation, so the overall hydrogen production efficiency is very low

The thermal conversion rate of hydrogen production by solar electrolysis of water is very low, so how to design a system to increase the thermal conversion rate is the key to this method

Images