The Trombe wall of a kind of solar energy heating and radiation refrigeration integrated application
Technical field
The utility model belongs to the field of energy utilization technology, is specifically related to the application of solar energy heating and radiation refrigeration.
Background technology
Chinese scholars to Te Longbu (Trombe) wall technology existing nearly half a century progress, it is gained the name because of the France professor Felix Trombe that proposes first this concept for 1966.Traditional Trombe wall is mainly made up of transparent cover plate, heat collecting and accumulating wall, air flow channel, upper and lower ventilation opening and baffle plate.Its operating principle is: utilize daytime the external surface of heat collecting and accumulating wall blacking to absorb solar energy, make indoor cold air enter between transparent cover plate and heat collecting and accumulating wall and be heated and become hot air in air flow channel through lower ventilation opening by thermosyphon action, flow into indoor heating through upper ventilation opening again, also have part heat to import indoor heating into by the heat conduction of south orientation body of wall simultaneously; At night, the heat being stored in south orientation body of wall is slowly discharged into indoor heating.Trombe wall type the solar energy housing too high and shortcoming that whole day fluctuations in indoor temperature is larger of the afternoon interior temperature of formula solar heating system of having avoided being directly benefited.
Although Trombe wall technology is widely applied in decades in the past and has had many improvement projects, but still there are some shortcomings, first, traditional Trombe wall function is single, can only be used for heating or ventilation, in the time that require cooling summer, to reducing the poor effect of indoor refrigeration duty, even can increase indoor refrigeration duty, the restriction that this is serious Trombe wall applying in hot area in summer; Secondly, due to the blacking of heat collecting and accumulating wall external surface, and most building surface coordinates not, affected the attractive in appearance of building.
Utility model content
Be difficult to refrigeration and shortcoming attractive in appearance not summer for solving traditional Trombe wall, the utility model proposes and a kind ofly can meet heat supply in winter simultaneously and freeze summer and take into account the Trombe wall of solar energy heating attractive in appearance and radiation refrigeration integrated application.
Concrete improvement technical scheme is as follows:
The Trombe wall of solar energy heating and radiation refrigeration integrated application comprises the heat collecting and accumulating wall and the transparent cover plate that are parallel to each other, and the space between heat collecting and accumulating wall and transparent cover plate is air flow channel; Top between heat collecting and accumulating wall and transparent cover plate is provided with outdoor upper ventilation opening, and bottom is provided with outdoor lower ventilation opening; The top of described heat collecting and accumulating wall offers indoor upper ventilation opening, and bottom offers indoor lower ventilation opening; Described outdoor upper ventilation opening and indoor upper ventilation opening are mutually corresponding, and described outdoor lower ventilation opening and indoor lower ventilation opening are mutually corresponding, and improvement is: described transparent cover plate is all band high permeability material; The medial surface of described transparent cover plate is provided with sun blind, and blade one side of sun blind scribbles coating for selective absorption, and the absorptivity in the solar radiation wave band of 0.2 ~ 3 μ m is 90~95%; Another side is selective radiation surface, and the emissivity in the wave band of 8 ~ 13 μ m is 80 ~ 90%, and reflectivity 60 ~ 90% in its all band.
Described all band high permeability material is polyethylene sheeting, is greater than 80% in the transmitance of 0~25 mu m waveband, is wherein 85~90% in the transmitance of the solar radiation wave band of 0.2 ~ 3 μ m and the atmospheric window wave band of 8 ~ 13 μ m.
Described coating for selective absorption is cermet plated film band or black chrome coating.
Described selective radiation surface is PETG (PET) coating or polyvinyl fluoride coating.
The utility model in the winter time daytime to room heating, night to room heat insulation, can reduce room heat requirement, night on daytime in summer again freezes to room, efficiently solve the shortcoming of the function singleness that traditional Trombe wall can only heating, and the use of rakish sun blind has also made up the shortcoming of traditional Trombe wall outward appearance deficiency.
Useful technique effect of the present utility model embodies in the following areas:
1. by setting up all band high permeability material layer, transmitance at the solar radiation wave band of 0.2 ~ 3 μ m and the atmospheric window wave band of 8 ~ 13 μ m reaches 85~90%, can in the time of needs thermal-arrest, make so most of solar radiation see through all band high permeability material layer projects on sun blind, can in the time need to freezing, make again the heat of sun blind radiation effectively be dispersed into sky in the air through all band high permeability material layer, in addition, the existence of all band high permeability material layer can also reduce the heat convection between sun blind and external environment effectively;
2. set up the effect of sun blind, one side of the blade of sun blind scribbles coating for selective absorption, its absorptivity at the solar radiation wave band of 0.2 ~ 3 μ m is 90 ~ 95%, and there is very low emissivity at its all band, utilize this feature of coating for selective absorption, in the time that needs heat to room, to scribble outside coating for selective absorption faces, absorb solar radiant energy, reduce simultaneously sun blind by infrared band to external radiation dispersed heat, thereby the air in the air flow channel between heating sun blind and south orientation body of wall, and heat to indoor.The another side of blade is selective radiation surface, its atmospheric window wave band at 8 ~ 13 μ m has higher emissivity, and in its all band, there is higher reflectivity, utilize the spectral characteristic on this surface, while needing to reduce space cooling load by day, making to project this lip-deep solar radiant energy overwhelming majority is reflected back, reduce the solar radiant energy absorbing, in the time need to freezing to room night, utilize its high emissivity at the atmospheric window wave band of 8 ~ 13 μ m, the outer space extremely low with temperature carries out radiation heat transfer, thereby reduce the air themperature in air flow channel between sun blind and south orientation body of wall, and freeze to indoor,
3. in addition, structure described in the utility model also can be applicable to south orientation inclined roof, due to the existence at its angle of slope, make the ascent between south orientation inclined roof and the sun or zenith direction larger, thus than the south orientation body of wall of vertical ground have better daytime Heat-collecting effect and evening refrigeration.
In sum, the novel Trombe wall of solar energy heating-radiation refrigeration described in the utility model integrated application has been widened the application of Trombe wall, has great promotional value.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the novel Trombe wall described in the utility model mode of operation on daytime in winter.
Fig. 3 is the novel Trombe wall described in the utility model mode of operation at night in winter.
Fig. 4 is the novel Trombe wall described in the utility model mode of operation on daytime in summer.
Fig. 5 is the novel Trombe wall described in the utility model mode of operation at night in summer.
Sequence number in upper figure: polyethylene sheeting 1, sun blind 2, heat collecting and accumulating wall 3, air flow channel 4, outdoor upper ventilation opening 5, outdoor lower ventilation opening 6, outdoor overhead gage 7, outdoor lower baffle plate 8, indoor upper ventilation opening 9, indoor lower ventilation opening 10, indoor overhead gage 11, indoor lower baffle plate 12.
Detailed description of the invention
Below in conjunction with accompanying drawing, by embodiment, the utility model is further described.
Embodiment 1
Referring to Fig. 1, the Trombe wall of a kind of solar energy heating and radiation refrigeration integrated application comprises the heat collecting and accumulating wall 3 and the transparent cover plate that are parallel to each other, and the space between heat collecting and accumulating wall 3 and transparent cover plate is air flow channel 4; Top between heat collecting and accumulating wall 3 and transparent cover plate is provided with outdoor upper ventilation opening 5, and bottom is provided with outdoor lower ventilation opening 6; The top of heat collecting and accumulating wall 3 offers indoor upper ventilation opening 9, and bottom offers indoor lower ventilation opening 10.Outdoor upper ventilation opening 5 and indoor upper ventilation opening 9 are mutually corresponding, and outdoor upper ventilation opening 5 places are provided with outdoor overhead gage 7, and indoor upper ventilation opening 9 places are provided with indoor overhead gage 11; Outdoor lower ventilation opening 6 and indoor lower ventilation opening 10 are mutually corresponding, and outdoor lower ventilation opening 6 places are provided with outdoor lower baffle plate 8, and indoor lower ventilation opening 10 places are provided with indoor lower baffle plate 12.
Transparent cover plate is covered by polyethylene sheeting 1 on the framework of Window frame-type and forms, polyethylene sheeting 1 is all band high permeability material, transmitance at 0~25 mu m waveband is greater than 80%, is wherein 85~95% in the transmitance of the solar radiation wave band of 0.2~3 μ m and the atmospheric window wave band of 8 ~ 13 μ m.
Sun blind 2 are installed on the medial surface of transparent cover plate, and a side of the blade of sun blind 2 scribbles coating for selective absorption, and coating for selective absorption is cermet plated film band, and the absorptivity in the solar radiation wave band of 0.2~3 μ m is 90~95%; The another side of blade is selective radiation surface, and concrete surfacing is PETG (PET) coating, and the emissivity in the wave band of 8~13 μ m is 80~90%, and reflectivity 60~90% in its all band.
As shown in Figure 2, when daytime, close outdoor overhead gage 7 and outdoor lower baffle plate 8, make outdoor upper ventilation opening 5 and outdoor lower ventilation opening 6 in closed condition in the winter time, open indoor overhead gage 11 and indoor lower baffle plate 12 simultaneously, make indoor upper ventilation opening 9 and indoor lower ventilation opening 10 in opening state; On sun blind 2, scribble blade one side of cermet plated film band outwardly, absorb the solar radiant energy that sees through polyethylene sheeting 1, reduce simultaneously sun blind 2 by infrared band to external radiation dispersed heat, thereby the air in heated air flow road 4, indoor cold air ventilation opening 10 from indoor flows in air flow channel 4, constantly be heated to form hot air by thermosyphon action toward rising, then flow into indoor heating by indoor upper ventilation opening 9, also have part heat to import indoor heating into by heat collecting and accumulating wall 3 heat conduction simultaneously.
Embodiment 2
One side of the blade of sun blind 2 scribbles black chrome coating, and its structure is with embodiment 1;
As shown in Figure 3, in the winter time when night, all indoor and outdoor baffle plates close, make all ventilation openings all in closed condition, on sun blind 2, scribble blade one side of black chrome coating outwardly, reduction sun blind 2 are by infrared band to external radiation dispersed heat, and the heat being simultaneously stored in heat collecting and accumulating wall 3 daytime imports indoor heating into slowly by heat conduction.
Embodiment 3
The blade another side of sun blind 2 scribbles polyvinyl fluoride coating, and its structure is with embodiment 1;
As shown in Figure 4, in the time of daytime in summer, open outdoor overhead gage 7 and outdoor lower baffle plate 8, make outdoor upper ventilation opening 5 and outdoor lower ventilation opening 6 in opening state, close indoor overhead gage 11 and indoor lower baffle plate 12 make indoor upper ventilation opening 9 and indoor lower ventilation opening 10 in closed condition simultaneously; On sun blind 2, scribble the blade another side of polyvinyl fluoride coating outwardly, making to project daytime this lip-deep solar radiant energy overwhelming majority is reflected back, reduce the solar radiant energy absorbing, utilize its high emissivity having at the atmospheric window wave band of 8~13 μ m, the outer space extremely low with temperature carries out radiation heat transfer simultaneously; On the other hand, outdoor air ventilation opening 6 from outdoor enters air flow channel 4, and becomes hot air and constantly rise after absorbing the heat of sun blind 2 and heat collecting and accumulating wall 3, finally again flow to by outdoor upper ventilation opening 5 outdoor, thereby reduce indoor refrigeration duty.
Embodiment 4
Structure is with embodiment 1;
As shown in Figure 5, in the time of night in summer, close outdoor overhead gage 7 and outdoor lower baffle plate 8, make outdoor upper ventilation opening 5 and outdoor lower ventilation opening 6 in closed condition, open indoor overhead gage 11 and indoor lower baffle plate 12 simultaneously, make indoor upper ventilation opening 9 and indoor lower ventilation opening 10 in opening state, PETG (PET) coated side of sun blind 2 blades outwardly, utilize its atmospheric window wave band at 8 ~ 13 μ m to there is high emissivity and at the high reflectance of its all band, the outer space extremely low with temperature carries out radiation heat transfer, and the radiation heat transfer of minimizing and surrounding environment, thereby the air in cooling-air runner 4, Indoor Thermal air flows in air flow channel 4 by indoor upper ventilation opening 9, carry out heat convection with sun blind 2 and gradually become cold air, the cold air that density constantly increases by Action of Gravity Field toward current downflow, then flow into indoor refrigeration by indoor lower ventilation opening 10.