The water-cooled photovoltaic generating system
The utility model relates to solar energy power generating, and solar energy heat utilization field.Relate in particular to a kind of water-cooled photovoltaic generating system.
In Various Seasonal and the intraday different moment of photovoltaic generating system in 1 year, the irradiation time of the sun and irradiating angle have suitable variation.At the earth where no matter the variation of this irradiating angle cause traditional dull and stereotyped fixed type photovoltaic power generation system, even place in optimized mode, also can't avoid the influence of " cosine effect ".The loss of the photovoltaic plant annual energy output that the cosine effect causes is considerable.Because the price of solar cell is high so far, the photovoltaic generation cost is too high simultaneously; Therefore under the situation of present solar cell costliness, making great efforts to improve the energy output of unit are solar cell, is the important way that reduces photovoltaic system unit's energy output cost.The amount of radiation that increases solar cell by the optically focused mode is to improve the ideal style of solar cell energy output, but because there is negative temperature effect in silion cell, therefore on the basis of improving the unit are solar radiation, also improved the temperature of solar cell, reduced the efficient of solar cell, and the life-span of solar cell has also been had a significant impact.Therefore the temperature that reduces solar cell is extremely important, the cooling measure of solar module mainly adopts the mode of air natural cooling at present, this mode gets temperature for condenser system and descends very limitedly, therefore is necessary to develop a kind of new and effective cooling method.
The utility model content
The technical problems to be solved in the utility model is, at the above-mentioned defective of prior art, provides a kind of water-cooled photovoltaic generating system.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of water-cooled photovoltaic generating system, comprise mirror surface, be arranged on the solar cell of described mirror surface focus, it is characterized in that, also comprise and be arranged on the thermal conductive water pipe that described solar cell below is used to absorb the heat that described solar cell produces, the water tank that links to each other with described thermal conductive water pipe.
In water-cooled photovoltaic generating system described in the utility model, be provided with the heat conductive silica gel that is used to transmit heat energy between described solar cell and the described thermal conductive water pipe.
In water-cooled photovoltaic generating system described in the utility model, comprise that also covering described mirror surface top prevents the glass cover-plate that foreign material are fallen into.
In water-cooled photovoltaic generating system described in the utility model, described solar cell top is coated with the diaphragm that one deck prevents that it is aging.
In water-cooled photovoltaic generating system described in the utility model, described water tank is provided with the water inlet that links to each other with described thermal conductive water pipe and is used for the delivery port of water outlet.
Implement water-cooled photovoltaic generating system of the present utility model, has following beneficial effect: because water-cooled photovoltaic generating system of the present utility model is provided with circulating water pipe, the heat energy that the battery heating produces is utilized by boiler water circulation, has further improved the energy-conservation value of system; The glass cover-plate that increases has very high anti-heat island effect, has also increased the survivability of photovoltaic module simultaneously, has increased unfailing performance; Improve the energy output of unit are solar cell, reduced cost of electricity-generating; Solve crystal silicon battery under the optically focused condition, improved the problem that energy output but brings temperature sharply to raise, effectively reduced the temperature of cell panel, improved battery efficiency.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of water-cooled photovoltaic generating system of the present utility model;
Fig. 2 is the cross-sectional view of water-cooled photovoltaic generating system of the present utility model.
Fig. 1 is the project organization figure of water-cooled photovoltaic generating system under the whole optically focused condition, water-cooled photovoltaic generating system of the present utility model comprises mirror surface 1, solar cell 2, solar cell 2 is arranged on described mirror surface 1 focus, be used to absorb the thermal conductive water pipe 3 of the heat that described solar cell 2 produces, with the water tank 8 that described thermal conductive water pipe 3 links to each other, thermal conductive water pipe 3 is arranged on described solar cell 2 belows.
Sunlight doubles sunlight to focus on the solar cell 2 by parabolic reflector face 1, and solar cell 2 generatings are exported by being provided with the lead at two ends; Simultaneously, under silion cell, the silica gel by insulation, heat conduction is transferred to following flat red copper water pipe 3 with the heating of solar cell 1, by boiler water circulation heat is taken away; Hot water stores by a storage tank, and can take at any time.Also be provided with water inlet 801 that links to each other with described thermal conductive water pipe 3 and the delivery port 802 that is used for water outlet on the water tank 8.
Fig. 2 is reflecting glass or the aluminium foil plate that the profile of sun assembly of the present invention utilizes two parabolic surfaces, forms the optically focused passage; On whole optically focused passage, cover one deck glass cover-plate 4 simultaneously, fall into, form tropical island effect, reduce the life-span of solar cell, also have the effect of opposing external impact, hail etc. simultaneously to prevent birds droppings, dust and other dirt; Cover lid layer composite protection film 5 on solar cell 2 upper stratas, constitute by EVA glued membrane and Tedlar film respectively, have the effect of high waterproof, airtight, anti-ultraviolet ageing; Bonding with copper coin 3 in solar cell 2 times by insulation, heat conductive silica gel 6, heat transferred to the bottom water-cooling channel, is cushioned the different and thermal stress brought of thermal coefficient of expansion between solar cell 2 and the copper coin 3 simultaneously.