A kind of solar photovoltaic photothermal heat collector

Abstract

The invention discloses a photovoltaic photo-thermal heat collector which comprises a photovoltaic cell panel, a heat exchange tube provided with a reflective coating in the surface, a heat preservation plate, a back plate, a frame and a control device. The photovoltaic cell panel comprises first light-transmitting glass, second light-transmitting glass, a plurality of heat insulation frames, a plurality of second cavities, a plurality of solar cells and a plurality of electrochromic films; each heat insulation frame is provided with a first cavity, the upper surface and the lower surface of the heat insulation frame are respectively connected with the first light-transmitting glass and the second light-transmitting glass through heat-insulating glue; the solar cells are arranged in the second cavities; and the electrochromic films are installed in the first cavities and pasted to the upper surface of the second light-transmitting glass; the heat exchange tube comprises a vertical tubeand a bent tube, the vertical tube is arranged on the back face of the photovoltaic cell panel and located under the electrochromic films, and the control device is used for controlling work of the electrochromic films. The solar water heater is simple in structure, the power generation efficiency of the photovoltaic cell panel can be effectively improved, and different hot water requirements ofusers are met.

Description

Technical field [0001] The present invention relates to the field of photovoltaic photochanes, and more particularly to a solar photovoltaic photocopyrower. Background technique [0002] Most of the solar photovoltaic photocopyrower is mostly mounting a heat transfer coil on the back of the conventional photovoltaic panel, and the heat is absorbed in the heat transfer coil to absorb the heat of the photovoltaic battery board and transport it to the heat storage tank. Domestic water, while reducing the temperature of the photovoltaic battery board to improve its power generation efficiency, it can also get a hot water, and achieve the integration of photovoltaic components and solar collectors, which greatly improves the comprehensive utilization efficiency of solar energy, and has been very A wide range of applications. However, the current solar photovoltaic photocopyrower is installed on the back of the photovoltaic plate due to the heat transfer pipe, and the recovered hot wat...

AI Technical Summary

Problems solved by technology

However, due to the heat exchange tubes installed on the back of the photovoltaic panels in the current solar photovoltaic thermal collectors, the temperature of the recovered hot water is relatively low, which is difficult to meet the high-temperature hot water demand of ordinary families, especially in winter when the demand for hot water is large. In addition, the existing heat exchange tubes mostly exchange heat with the back of the photovoltaic panel through the air layer, and the heat exchange effect is poor, especially on the lower surface of the heat exchange tube, resulting in a general cooling effect of the photovoltaic panel and low heat recovery. Less, it is urgent to study the corresponding technology for improvement

Images