Solar energy-air source heat pump composite system suitable for microthermal climate

Abstract

The invention discloses a solar energy-air source heat pump composite system suitable for microthermal climate, belonging to the field of utilization of renewable energy source. The system comprises a solar energy heat collector, a frequency conversion compressor, a jet booster, a heat exchanger, a four-way electromagnetic directional valve and the like which are connected by pipelines. The invention is characterized in that a solar energy circulating unit and an air source heat pump circulating unit in the system form a refrigeration mode, a heating mode, a domestic hot water mode, and a refrigeration and domestic hot water operation mode by switching on or switching off the four-way electromagnetic directional valve and the electromagnetic valve. The invention has the beneficial effect that the system fully utilizes the solar energy and the air energy; in summer, the system not only can separately refrigerate and prepare domestic hot water, but also can simultaneously refrigerate and prepare domestic hot water; in microthermal climate of winter, the jet booster is coupled with the solar energy circulating unit and the air source heat pump circulating unit to provide the heat anddomestic hot water required indoors to realize integration of cold bath and hot bath; and the system has wide application space and significances of energy saving and environment protection.

Description

Technical field [0001] The invention belongs to the field of renewable energy utilization, and relates to a solar-air source heat pump composite system, in particular to a heat pump composite system that uses solar energy and air energy to realize cooling, heating and domestic hot water production in cold areas. Background technique [0002] Energy, in today's rapid economic development, has become the focus of global attention. With the gradual deepening of my country's construction of a conservation-oriented society, how to properly use energy and rationally develop and utilize renewable energy has risen to a strategic height related to the country's survival and development. Although the heating in cities and towns in my country is mainly provided by centralized pipe network heating, there are still a large number of small-scale electric, coal, oil, gas boilers and other methods for winter heating. There are problems such as low energy utilization, poor heating effect, overhe...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a solar energy-air source heat pump composite system that can be widely used in cold areas. In the cold regions of the north, the application is limited and other defects, and make full use of two renewable energy sources, solar energy and air energy, to realize the diversification of system functions and the integration of heating and cooling equipment.

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