A kind of new type solar collecting module
Technical field
The utility model relates to solar energy utilization technique, is specifically related to a kind of new type solar collecting module.
Background technology
The energy is the basis of human survival, and the reasonable development of the energy and utilization are the sources of entire society's development, also is one of important symbol of human civilization and progress.Along with the progress and development of social production, along with the raising of living standards of the people, energy demand also will increase substantially.Yet the development and utilization of the energy is subjected to the restriction of numerous factors such as resource, technology, economy and environment.Solar energy does not produce the new forms of energy of pollution as a kind of to environment, and is inexhaustible.Solar energy is to reduce the effective way that conventional energy resource consumes, and vast potential for future development is arranged in building field.The solar energy utilization has been combined as major tasks with building in the world and carried out.Solar water heater is with the solar energy optical-thermal conversion, utilizes greenhouse effects and siphon principle to make the device of water heating, because it does not consume fossil fuel, pollution-free, price is lower, and is safe and convenient to use.In the solar energy optical-thermal transfer process, key is that the radiant energy with the sun is converted to heat energy, because solar energy relatively disperses, must manage it is put together, so heat collector is the various key equipments that utilize solar energy equipment.
The common heat collector of China mainly contains two classes at present: flat-plate collector and vacum tube-type heat collector.Flat-plate collector selects flat heat collecting plate, light transmissive material cover plate, heat-insulation layer, housing and the water inlet pipe and water outlet pipe of absorbing coating to form by scribbling, when sunshine impinges upon on the flat heat collecting plate through glass, wherein most of solar radiant energy is absorbed by absorber, change heat energy into, and the working medium of biography in the fluid passage, by Natural Circulation or forced circulation, and the water in the storage tank is heated, though flat type solar heat collector is simple in structure, efficient is high, but, make that its heat insulating ability is relatively poor owing to reasons such as manufacturing technologies; The vacuum type heat collector comprises full-glass vacuum collector, heat-tube vacuum collector, through type metallic object vacuum collector.
(1) the annual thermal efficiency height of full-glass vacuum collector, its cost, freexing tolerance, night insulation are between heat-tube vacuum collector and flat-plate collector, but its bearing capacity is lower, heat-resistant impact ability is relatively poor, might burst the relatively poor (tracheal rupture of system reliability after the water filling of empty solarization system, the whole system maintenance of need stopping using), easily fouling in the glass tube after use a period of time, difficult cleaning has had a strong impact on its thermal efficiency.
(2) the annual thermal efficiency of heat-tube vacuum collector is higher, and bearing capacity is big, but general pressure-bearing 0.98MPa, thermal shock resistance is good, anti-freezing, night, heat loss was little, the system works good reliability, but cost an arm and a leg, market is difficult for accepting, and the easy fouling of condensation end needs periodic cleaning, be subjected to the restriction of cycle fluid in the heat pipe service life, thermal conversion efficiency reduces along with the increase of access times.
(3) the thermal efficiency height (winter 45% of through type metallic object (copper pipe) vacuum collector, summer 80%), pressure-bearing height (the highest 0.98Mpa), the heat collector non-scaling, good reliability (metal heat shock resistance), the thermal power of single tube is higher by 21% than unidimensional all-glass vacuum tube, but since the sealing-in of glass and metal employing be rubber seal, so its vacuum is difficult to lastingly.
Summary of the invention
Technical problem to be solved in the utility model is, at the shortcomings and deficiencies that exist in the prior art, has proposed a kind of new type solar collecting module, to overcome existing shortcomings and deficiencies in the prior art.
For solving the problems of the technologies described above, a kind of new type solar collecting module that the utility model provides, described solar energy heat collecting module is formed in parallel by pipeline by some flat type solar heat collectors, described solar thermal collector comprises transparent cover plate, absorber, heat-insulation layer, frame and base plate, described frame totally is the U font, and transparent cover plate is located at the frame top, and absorber is in the transparent cover plate below, heat-insulation layer is distributed in around the frame inner chamber and the bottom, and base plate is located at the frame below.
Preferably, described transparent cover plate adopts the thick safety glass of 4mm.Safety glass can reduce convection current and radiation loss, and can improve the thermal efficiency, has transparency height, light weight, shock resistance, sound insulation, heat insulation, difficult combustion, advantage such as anti-aging.
Preferably, described absorber thickness is 10mm.Absorber adopts anticorrosion aluminium ally section to do the chamber plate, and the surface scribbles the high-absorbility composite coating, and the solar radiant energy that absorbs is passed to working fluid in the cavity.
Preferably, described heat-insulation layer adopts phenolic foam material.Phenolic foam material can reduce the conductive heat loss by heat collector base plate and frame, and has advantages such as wide, anticorrosive anti-aging, the waterproof moisture-resistant of the feature of environmental protection, noninflammability, in light weight, good heat insulating, serviceability temperature scope.
Preferably, described frame adopts the oxidation-resistant alloy material.Frame is by squeezing out section bar by structural requirement; simple procedures such as the process assembly is slotting, bonding, riveted joint are made, and use the conduction oil secondary heat exchange, have not only solved the antifreeze problem of solar thermal collector; and favourable protection metallic interior surface, can improve service life.
Preferably, described base plate adopts the plastic-steel material, and thickness is 0.5mm.The plastic-steel material is a primary raw material with polyvinyl chloride (PVC) resin, has excellent heat insulation property.
Preferably, distance is 20mm between described transparent cover plate and the described absorber.
Preferably, described heat-insulation layer thickness around the frame inner chamber is 15mm, is 30mm at frame intracavity bottom thickness.
Further, described absorber two ends are provided with two conduits that conflux.
To be some flat type solar heat collectors by the parallel connected array mode connect to arrange the utility model forms; arrangement can be so that heat collector has less pressure drop like this; higher efficient; the utility model adopts novel alloy material and special construction manufacturing; both can be mounted to building tiling and curtain wall; also can be used for hot water engineering and domestic solar water heater; can realize building the unification and the compatibility of tiling and casual household's installation; main body frame adopts oxidation-resistant alloy to belong to material and makes; and use the conduction oil secondary heat exchange; not only solved the antifreeze problem of solar thermal collector; and favourable protection metallic interior surface; can improve the service life of heat collector, the utility model also has good reliability in addition; long service life; consumptive material is few; cost is low; characteristics such as manufacturing process is simple.
Description of drawings
Fig. 1 is the structural representation of the utility model flat type solar heat collector;
Fig. 2 is the structural representation of the utility model new type solar collecting module.
The specific embodiment
Below by embodiment the utility model is made preferably specific description, but protection domain of the present utility model is not limited to this.
As shown in Figure 1, 2, a kind of new type solar collecting module, described solar energy heat collecting module is formed in parallel by pipeline by eight flat type solar heat collectors 7, described solar thermal collector comprises transparent cover plate 1, absorber 2, heat-insulation layer 3, frame 4 and base plate 5, described frame 4 totally is the U font, and transparent cover plate 1 is located at frame 4 tops, and absorber 2 is in the transparent cover plate below, heat-insulation layer 3 is distributed in around frame 4 inner chambers and the bottom, and base plate 5 is located at frame 4 belows.
Described transparent cover plate 1 adopts the thick safety glass of 4mm.Described absorber 2 thickness are 10mm.Described heat-insulation layer 3 adopts phenolic foam material.Described frame 4 adopts the oxidation-resistant alloy material.Described base plate 5 adopts the plastic-steel material, and thickness is 0.5mm.Distance is 20mm between described transparent cover plate 1 and the described absorber 2.Described heat-insulation layer 3 thickness around frame 4 inner chambers is 15mm, is 30mm at frame 4 intracavity bottom thickness.Described absorber 2 two ends are provided with two conduits 6 that conflux.
Should be pointed out that at last above embodiment only is the more representational example of the utility model.Obviously, the utility model is not limited to the foregoing description, and many distortion can also be arranged.Every foundation technical spirit of the present utility model all should be thought to belong to protection domain of the present utility model to any simple modification, equivalent variations and modification that above embodiment did.