Heat pump type greenhouse air conditioning system with solar photovoltaic power supply function and underground water source

Abstract

The invention belongs to the field of new energy utilization, and particularly relates to a heat pump type greenhouse air conditioning system with a solar photovoltaic power supply function and an underground water source. The heat pump type greenhouse air conditioning system with the solar photovoltaic power supply function and the underground water source comprises an underground water source and heat pump system and a solar photovoltaic power generation system, a greenhouse is refrigerated and heated by the underground water source and a heat pumps, and power is supplied for the underground water source and heat pump system by the aid of a solar photovoltaic technology. The underground water source and heat pump system comprises an underground water heat exchange system, a heat pump unit and a tail-end system, the solar photovoltaic power generation system comprises a solar photovoltaic array, a direct-current power distribution cabinet, an alternating-current power distribution cabinet and a grid-connected inverter, the solar photovoltaic power generation system and a public power grid are matched with each other to supply the power, effects of continuous energy conservation and emission reduction can be realized, and shortcomings of instability and high cost of solar energy are overcome. Besides, amorphous thin-film solar panels are adopted, are low in manufacturing cost and high in light transmittance, can generate the power without affecting growth of crops, and do not additionally occupy land when built on a roof of the greenhouse, sunshade for the greenhouse in summer is omitted, and the investment is saved.

Description

technical field [0001] The invention belongs to the field of new energy utilization, and in particular relates to an underground water source heat pump greenhouse air-conditioning energy-saving system powered by solar photovoltaics. Background technique [0002] With the development of modern agriculture, the demand and application of new energy are becoming more and more extensive. At present, the heating of greenhouses mainly uses coal-fired hot water heating, gas-fired hot water heating and oil-fired hot air stove heating systems. These heating methods require combustion A large amount of fossil energy will release a large amount of greenhouse gases and harmful gases such as carbon dioxide, which will endanger the ecological environment. Therefore, many clean energy sources such as solar energy and shallow geothermal energy utilization technologies have gradually attracted the attention of scholars. The utilization of shallow ground energy is mainly realized through gro...

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Problems solved by technology

The patent application number is 200620158436.4, and the patent name is a Chinese utility model patent for a greenhouse / ecological hotel with a ground source heat pump. However, the use of electricity from the State Grid to drive ground source heat pumps is costly and will still cause more greenhouse gas emissions and pollute the environment.

The patent application number is 201120486401.4, and the patent name is solar photovoltaic greenhouse. In the technical solution provided by the Chinese utility model patent, solar photovoltaic power generation is used in the greenhouse and integrated with the greenhouse, but the photovoltaic power generation is completely used, and the cost is too high

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