Solar photoelectric photo-thermal integrated assembly and solar combined heat and power generation system thereof

Abstract

The invention relates to a solar photoelectric photo-thermal integrated assembly and a solar combined heat and power generation system of the solar photoelectric photo-thermal integrated assembly. The solar photoelectric photo-thermal integrated assembly is characterized by comprising a photovoltaic cell panel provided with a metal outer frame, a metal sheet type heat exchanger and a heat-preservation material layer, wherein the metal sheet type heat exchanger and the heat-preservation material layer are sequentially arranged on the back surface of the photovoltaic cell panel in parallel and in an overlapped mode, and are rapidly fixed in the metal outer frame of the photovoltaic cell panel through a metal fixing clamp, and the standard photovoltaic cell panel can be rapidly modified into the photoelectric photo-thermal integrated assembly. The photoelectric photo-thermal integrated assembly has the advantages of being compact in structure, high in efficiency, small in pressure loss, light in weight, flexible to install, high in pressure bearing performance, resistant to corrosion, low in cost and the like, further reduces the initial investment and installation space of a medium and low temperature solar thermoelectric system, lowers the operation expenses of the system, and is suitable for civil and industrial occasions requiring for both heat and power.

Description

technical field [0001] The invention relates to a heat and power cogeneration system, in particular to a solar heat and power cogeneration system. Background technique [0002] Cogeneration of cooling, heating and power is a total energy system that integrates heating (or cooling) and power generation processes based on the concept of energy cascade utilization. It can make cascaded utilization of energy of different qualities. The thermal energy with relatively high temperature and high available energy is used for power generation, while the low-grade thermal energy with relatively low temperature is used for heating or cooling. This not only improves the efficiency of energy utilization, but also reduces the emission of carbides and harmful gases, which has good economic and social benefits. [0003] The solar cogeneration system is implemented by combining photovoltaic cells and solar water heaters. The conversion efficiency of ordinary photovoltaic cell components is g...

AI Technical Summary

Problems solved by technology

[0005] Although there are many types of photoelectric thermal technology with medium and low temperature, they have their own disadvantages: the heat utilization efficiency of air-cooled photoelectric thermal technology is very low, mainly because the thermodynamic properties of air are poor, so this technology can only be very low. Limited improvement of photoelectric efficiency and comprehensive utilization efficiency of solar energy; and in some occasions, this technology is limited to building ventilation systems, and its application range is small

However, there are still many defects in this technology: the heat collection structure adopted is complex, the cost is high, and the contact thermal resistance with the photovoltaic panel is very large. It is often necessary to use heat-conducting silica gel or additional laser welding substrates and wrapping substrates to solve the heat collection structure. The problem of contact with the photovoltaic panel; in addition, the efficiency of the fins of this type of heat collection structure is usually very low (generally a section of pipeline is laid at a certain distance), and the flow resistance (pressure loss) of the working medium is generally high

[0007] Therefore, it is imperative to develop a solar cogeneration system with simple and compact structure, high thermal efficiency, small pressure loss and easy promotion. After searching relevant documents, no solar cogeneration system identical to the technical solution of the present invention has been found.

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