Solar system, heating and ventilating system and building roof with solar system

Abstract

The invention provides a solar system, a heating and ventilating system and a building roof with the solar system. The solar system comprises a collector. The collector comprises heat collecting pipesand a reflecting mirror. The heat collecting pipes are flat pipes. The lower flat surfaces of the flat pipes are opposite to the reflecting surface of the reflecting mirror. Each flat pipe comprise abottom plate on the lower side and an upper cover on the upper side, wherein the upper cover and the bottom plate are assembled together to form a cavity of the flat pipe, and fluid flows in the cavity. Each bottom plate comprises a plurality of heat exchange area. Each heat exchange area comprises vertical plates and column ribs. The novel solar system is developed, and a flow guide structure isarranged in a cold plate of each heat exchange area, so that a refrigerant flowing dead area is effectively reduced, and the thermal homogeneity of a hot flow surface is further improved; and by means of the column ribs, the disturbance to the flow field is enhanced, the heat exchange area is expanded, and heat exchange can be easily reinforced.

Description

Technical field [0001] The invention belongs to the technical field of solar energy, and specifically relates to a solar energy system, a heating and ventilation system and a building roof thereof. Background technique [0002] With the continuous development of the economy and the massive consumption of energy, energy conservation has become a topic of global concern. The use of renewable energy such as solar energy, wind energy, geothermal energy and industrial waste heat and waste heat has become the focus of research and development in various countries. However, these energy sources have The characteristics of discontinuity and instability, so the research of energy storage technology is particularly important. Thermal storage technology is a kind of energy storage technology. An important part of thermal storage technology is the design of phase change thermal storage heat exchanger. A common phase-change regenerative heat exchanger consists of two tubes set together, and ...

AI Technical Summary

Problems solved by technology

[0009] In view of the above analysis, there are the following technical problems in the prior art: For the heat storage heat exchanger, the structure is complex, and heat exchange tubes need to be installed separately, and the heat energy utilization efficiency is low; the heat collection efficiency of the heat collection tubes is low; the fresh air system needs to be improved

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