Integrated energy supply system for agricultural greenhouse and power supply method

Abstract

The invention discloses an integrated energy supply system for an agricultural greenhouse and a power supply method. The temperature of the greenhouse is automatically adjusted, heat required for maintaining the temperature of the greenhouse is provided, or the temperature of the greenhouse is reduced. According to the integrated energy supply system and the power supply method, a solar heat collection and wind power stirring heating combination effect is used for providing heat to a biogas generator, and the temperature of high-efficiency fermentation of a biogas raw material is maintained; and chemical energy released by biogas combustion is used for driving an absorption type heat pump to realize heating and cooling of the greenhouse, the utilization rate of renewable clean energy and the greenhouse heating efficiency are improved, a comprehensive energy supply operation strategy is proposed, the aim of adjusting the temperature of the greenhouse in different seasons and different weather conditions is achieved, and the needs for agricultural greenhouse energy supply are met.

Description

technical field [0001] The invention belongs to the technical field of wind energy, solar energy and biomass energy utilization, in particular to the conversion of wind energy and solar energy to heat energy, and the utilization of biogas energy driven absorption heat pumps, and in particular to a joint absorption of wind energy, solar energy and biogas energy used in agricultural greenhouses Heat pump energy supply system and method. Background technique [0002] The energy issue has always been a major issue in our country and even in the international community. Traditional fossil energy sources such as oil, coal, and natural gas are gradually being exhausted, and human demand for fossil energy is gradually reaching its peak. International energy transformation is imminent. In addition, the current international community pays special attention to environmental issues, and the use of traditional fossil fuels will cause huge pollution to the environment, which is not cond...

AI Technical Summary

Problems solved by technology

In addition to basic insulation measures, traditional agricultural greenhouse heating basically uses coal-fired hot water boilers or heat pumps for heating. Coal-fired not only pollutes more, but also converts high-grade fuel chemical energy into low-grade heat energy in this way, which is very Waste of energy, and heat pump heating equipment and electricity costs are very expensive

In hot and dry summer, agricultural greenhouses need to be cooled and maintained at a certain temperature. Traditional agricultural greenhouse cooling technologies such as ventilation cooling, shading cooling, spray cooling, etc., ventilation cooling and shading cooling have no obvious cooling effect in extremely hot summer conditions. , cannot meet the requirements of plant growth, while spray cooling consumes a lot of water resources and is greatly restricted by environmental conditions

Images