Efficiency light heat absorption system
Technical field
The utility model relates to a kind of efficiency light heat absorption system.
Background technology
Present photo-thermal power generation industry, modal light heat collector generally are the outside heat-absorbing materials of irradiation, heat-absorbing material are heated up and the heating heat transfer medium, by pipe-line system the heat transfer medium that heats are sent to electricity generation system again.There is certain shortcoming in this kind mode: the first, irradiation occurs in the outside, and reflection of light is with total loss; The second, be to extraradial according to physical property, heat, light conversion and the heat that produces and the heat of conduction are lost some to external radiation; Three, above two name a person for a particular job and significantly reduce conversion efficiency, simultaneously liberated heat and reflectively also can influence surrounding environment.
The utility model content
Be to solve the problem that prior art exists, the purpose of this utility model is to provide a kind of extinction efficient height, efficiency light heat absorption system that heat transfer efficiency is high.
For achieving the above object, the utility model efficiency light heat absorption system, comprise light heat collector and the speculum array that is used for converging sunshine to it, wherein, light heat collector comprises the housing that is provided with absorbing cavity, this housing is provided with light inlet, and this light inlet extends internally and is provided with reflective funnel, and described housing is disposed with insulation heat insulation layer, heat exchange conducting shell and photo-thermal absorbed layer from outside to inside.
Further, described insulation heat insulation layer comprises the inboard heat radiation reflecting layer and the insulation material layer in the outside.
Further, described heat exchange conducting shell comprises heat absorption packing material and the transfer canal that is arranged on wherein.
Further, described photo-thermal absorbed layer is made up of the photo-thermal absorbing material, and its uniform cone absorptive unit that is provided with in surface forms repeatedly diffuse reflection uptake zone between two adjacent cone absorptive units.
Further, be provided with heat transfer medium in the described transfer canal, transfer canal is the coiled structure, and its coiling is distributed in the described heat exchange conducting shell, and the connection of the port of export of transfer canal is provided with heat transfer apparatus.
Further, described reflective funnel is a reducing hollow cone tubular construction, and its external diameter is big, internal diameter is little, and the inner surface of described reflective funnel is provided with light superelevation reflecting layer and protective layer.
Further, described light heat collector is fixedly mounted on the described support tower.
Further, described heat transfer apparatus is installed on the described support tower.
Further, described light heat collector profile is a ball fault shape.
Further, described cone absorptive unit is shaped as pyramid or circular cone.
The utility model efficiency light heat absorption system utilizes the reasonable combination of material, special construction and technology, to the converging of light, reflect, process such as absorption designs, to reach extinction efficient height, purpose that heat transfer efficiency is high.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the light heat collector structural representation;
Fig. 3 is an A portion cross section enlarged drawing among Fig. 2;
Fig. 4 is provided with structural representation for transfer canal.
The specific embodiment
As shown in Figures 1 to 4, the utility model efficiency light heat absorption system, comprise light heat collector 3 and the speculum array 1 that is used for converging sunshine to it, light heat collector 3 profiles are ball fault shape, it is fixedly mounted on the support tower 5, light heat collector 3 comprises the housing 7 that is provided with absorbing cavity 6, and housing 7 is provided with light inlet 8, and light inlet 8 extends internally and is provided with reflective funnel 9.
Wherein, housing 7 is disposed with insulation heat insulation layer 15, heat exchange conducting shell 14 and photo-thermal absorbed layer 13 from outside to inside.Insulation heat insulation layer 15 comprises the inboard heat radiation reflecting layer and the insulation material layer (not shown) in the outside; Heat exchange conducting shell 14 comprises heat absorption packing material (not shown) and the transfer canal 16 that is arranged on wherein; Photo-thermal absorbed layer 13 is made up of the photo-thermal absorbing material, its material has rough surface, dark color, high temperature resistant, the physical property such as good of conducting heat, the surperficial uniform cone absorptive unit 11 that is provided with of photo-thermal absorbed layer 13, form repeatedly diffuse reflection uptake zone 12 between two adjacent cone absorptive units, the distribution density of cone absorptive unit 11 and angle, size are stipulated according to actual instructions for use.The shape of cone absorptive unit 11 can be set to pyramid or circular cone.
Reflective funnel 9 is a reducing hollow cone tubular construction, and its external diameter is big, internal diameter is little, and reflective funnel 9 is made by heat-insulating material, the treated or coating in its surface, electroplates and forms light superelevation reflecting layer and protective layer (not shown).The Taper Pipe angle ω and the degree of depth of reflective funnel 9 are stipulated according to actual instructions for use.
Be provided with heat transfer medium in the transfer canal 16, transfer canal is the coiled structure, and its coiling is distributed in the heat exchange conducting shell 14, and the connection of the port of export of transfer canal 16 is provided with heat transfer apparatus 4.High-temperature region 19 from the low-temperature space 18 of the bottom periphery of reflective funnel 9 to the top, the direction 17 that transports of heats is around to high-temperature region 19 along pipeline gradually by low-temperature space 18 in the transfer canal 16, and output at last is incorporated into heat transfer apparatus 4.Heat transfer apparatus 4 is installed on the support tower 5.
The utility model efficiency light heat absorption system belongs to a link in the photo-thermal power generation system equipment chain.Heat transfer apparatus 4 comprises control system for heat pump and transmission pipeline, and light heat collector 3 is by support tower 5 support fixation, and light inlet 8 aligns speculum array 1.Housing 7 inside can adopt methods such as machinery, welding or cast to connect as one.
During work:
The first step: concentrate by the solar reflection optical line 2 of the fan-shaped array of solar mirror reflection to converge at the funnel part of photo-thermal absorption system referring to Fig. 1,3, its light beam is through light inlet 8 direct projections or after the superelevation reflecting layer on reflective funnel 9 surfaces once and is repeatedly reflected, enter absorbing cavity 6 by reflective funnel 9 internal orifices, referring to Fig. 2.
Second step: after entering absorbing cavity 6, light beam irradiates is to the conical element zone of photo-thermal absorbed layer, in repeatedly uptake zone, diffuse reflection district 12 internal reflections absorption, referring to Fig. 3, a little light or thermal scattering once and are repeatedly reflected by the superelevation reflecting layer again after reflective funnel surface, luminous energy is converted into heat energy heating photo-thermal absorbed layer, and heat is passed to the heat exchange conducting shell by heat again.Because reducing hollow cone tubular construction makes the light intensity of incident inner chamber have directionality, after absorbing, photo-thermal produced the non-uniform temperature of photo-thermal absorbed layer 13 and heat exchange conducting shell 14, produced low-temperature space 18, high-temperature region 19 then, referring to Fig. 2; By the conical disc tubular construction high and low warm area is connected, utilize thermograde to carry out heat exchange and spread out of by pipeline thermal circulation.
The 3rd step: heat is absorbed and is incorporated into heat transfer apparatus 4 through transfer canal 16 outside transmission in the heat exchange conducting shell, is transported to heat generating system.