Realization method of electricity-hydrogen-oxygen-heat comprehensive operation fishing-light complementary system

Abstract

The invention discloses an electricity-hydrogen-oxygen-heat comprehensive operation fishing-light complementation system implementation method, and relates to the field of fishing-light complementation aquaculture. The method comprises the steps that an aquaculture greenhouse is adopted, aquaculture is carried out in the aquaculture greenhouse, a distributed photovoltaic power station is built on the roof of the aquaculture greenhouse, a photovoltaic power generation panel generates direct-current photovoltaic power, and the direct-current photovoltaic power is converted into alternating-current photovoltaic power through inversion; alternating-current photovoltaic electricity is adopted for 8 hours in the daytime, and valley electricity of the alternating-current grid electricity is adopted for 16 hours at night and is rectified by a rectifier to provide direct-current voltage-stabilized electricity for an electrolytic hydrogen production device. Self-sufficiency type fish and light complementation can be achieved, the problem of aquaculture power demand is solved through photovoltaic power generation, fish and light complementation in the real sense is achieved, photovoltaic power generation is conducted on the top of the aquaculture greenhouse, oxygen and hot water can be provided for the fishery greenhouse in the photovoltaic energy storage electrolysis hydrogen production link, and the energy storage and electrolysis hydrogen production efficiency is improved. The aquaculture benefit is improved, fish and light complementation is achieved, and photovoltaic power generation is achieved while aquaculture is conducted.

Description

technical field [0001] The invention relates to the field of fishery-light complementary aquaculture, in particular to a method for realizing a fishery-light complementary system with integrated operation of electricity, hydrogen, oxygen and heat. Background technique [0002] According to relevant policies, photovoltaic power stations are currently suitable for construction on barren hills, barren slopes or Gobi, and cannot occupy a large amount of farmland and forest land. In the eastern part of China, the complementary fishery and photovoltaic or agricultural photovoltaic complementary projects are very good solutions for both agricultural production and photovoltaic power station construction. However, in the implementation process of the current fishing-solar and agricultural-solar complementary projects, the independence of photovoltaic power stations is very strong, and the complementary link is seriously out of touch. The complementarity between photovoltaic power sta...

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Problems solved by technology

[0002] According to relevant policies, photovoltaic power stations are currently suitable for construction on barren hills, barren slopes or Gobi, and cannot occupy a large amount of farmland and forest land. In the eastern part of China, the complementary fishery and photovoltaic or agricultural photovoltaic complementary projects are very good solutions for both agricultural production and photovoltaic power station construction. However, in the implementation process of the current fishing-solar and agricultural-solar complementary projects, the independence of photovoltaic power stations is very strong, and the complementary link is seriously out of touch. The complementarity between photovoltaic power stations and agriculture, forestry, fishery, etc. has not been reflected. The normal production of forestry, fishery has caused certain obstacles, affecting the production of agriculture, forestry, and fishery, thereby reducing the annual output value of agriculture, forestry, and fishery. The coastal areas in the north are full of tidal flats, with sufficient sunshine all year round, which is very suitable for aquaculture. Direct sunlight in summer is not conducive to the growth of some fish. It is necessary to build a shade shed or cultivate aquatic plants for shade, which increases the investment cost and the difficulty of breeding. In late autumn, winter and April of the next year, the seawater temperature is relatively low and aquaculture cannot be carried out. Production, in open aquaculture ponds, due to temperature limitations, only one or two aquaculture production can be carried out a year. In open aquaculture ponds, the oxygen consumption of the water body is very large, and the dissolved oxygen in the water body is affected by weather and The impact of air pressure is relatively large, and it is necessary to install aquaculture equipment such as aerators. If there is a power outage, serious aquaculture accidents such as aquatic product death will occur. Therefore, in order to ensure safe production and reduce the risk of aquaculture, the current aquaculture density is low, and the aquatic product per unit area is relatively low. Farming benefits are very limited

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