CN101726122B - Flat plate type solar heat collector - Google Patents
Flat plate type solar heat collector Download PDFInfo
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- CN101726122B CN101726122B CN200810216995XA CN200810216995A CN101726122B CN 101726122 B CN101726122 B CN 101726122B CN 200810216995X A CN200810216995X A CN 200810216995XA CN 200810216995 A CN200810216995 A CN 200810216995A CN 101726122 B CN101726122 B CN 101726122B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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Abstract
The invention relates to a flat plate type solar heat collector. The flat plate type solar heat collector comprises a shell and a pipeline arranged in the shell, wherein the shell comprises a heat collecting plate, a back cover plate, and a frame in sealed connection with the heat collecting plate and the back cover plate; the heat collecting plate is a whole piece of sheet; the pipeline comprises a plurality of heat collecting pipes and a discharge pipe, the plurality of heat collecting pipes are on the heat collecting plate side by side and connected with the heat collecting plate as a whole, and the discharge pipe is connected with and communicated with the heat collecting pipes; after each heat collecting pipe absorbs heat, water is discharged by the discharge pipe. The flat plate type solar heat collector uses the heat collecting plate made by a whole piece of sheet, and no heat loss is generated; because a plurality of heat collecting pipes are connected with the heat collecting plate into a whole, so that after the sun irradiates the heat collecting plate, the heat energy can be transferred to the pipeline with high efficiency; and because the heat collecting plate is a whole piece of sheet, the splicing procedure is unnecessary, so that the manufacturing cost is saved.
Description
Technical field
The present invention relates in particular to a kind of flat-plate solar heat collector about solar water heater.
Background technology
Along with development of modern industry, strengthen on the one hand demands for energy, cause energy crisis, in the use of conventional energy resource, discharge a large amount of carbon dioxides on the other hand, cause global " greenhouse effects ".Be sustainable development, the dependence to conventional energy resource, accelerated development regenerative resource are tried hard to break away from by global various countries.As optimal regenerative resource, solar energy has the characteristics of " inexhaustible ", utilizes solar energy to prepare hot water, environmental protection, energy-conservation.
At present, adopt vacuum tube type water heater (containing the heat-tube vacuum cast) mostly, plate water heater and vexed solarization type water heater three major types.The heat loss coefficient of present flat-plate solar heat collector product is high, is higher than vacuum tube solar heating element heat loss coefficient υ far away<3w/>m
2K, it is low to cause get heat winter.The 2nd, flat-plate solar heat collector does not form large-scale production, causes the price of high-quality plate type solar water heater higher.But that the plate type solar water heater has is withstand voltage, the life-span is long, is prone to form exclusive characteristics such as secondary circuit system.Next is that the plate type solar water heater is prone to combine with building, be prone to be installed on the roof, the architect when designing also than being easier to it is melted among the building.The 3rd is the reproducible utilization rate height of plate type solar water heater product material.The flat-plate solar heat collector material is main with copper aluminium, and recovery utilization rate is high.The product good in thermal property of plate type solar water heater.The security of system of plate type solar water heater is reliable, and effectively daylighting area is big.In addition, accepting under the equal solar energy condition, the flat-plate solar heat collector floor space is little, and the space is arranged between the tube and tube of vacuum tube solar heating element, causes floor space big.In recent years along with the development of solar building integrated technology, no matter people need a kind ofly to be outward appearance or can both to be easy to build the solar thermal collector of being integrally formed with environment coordination on the whole.And the electron tubes type heat collector has received certain limitation because of himself structure, and flat plate collector has the incomparable superiority of vacuum tube in this.
Traditional flat plate collector comprises housing and the pipeline that is arranged in the housing; Housing adopts heat collecting sheet on the sunny side; This heat collecting sheet is spliced by the polylith flat board usually, and the pipeline in the housing is tied up or riveted with iron wire, also has to adopt soldering or in combining the slit, fill various heat-conducting glues.Yet the heat collecting sheet of this splicing can produce heat loss, and the connected mode of pipeline also can produce big thermal resistance, is unfavorable for effective underground heat conduction, causes the solar heat transformation efficiency low at last; In addition, the cost of connecting method is also higher.
Summary of the invention
In view of this, be necessary to provide a kind of flat-plate solar heat collector of high efficiency, low cost.
A kind of flat-plate solar heat collector; It comprises housing and the pipeline that is arranged in the housing, and said housing comprises heat collecting sheet, back shroud, the frame of heat collecting sheet and back shroud that is tightly connected, and said heat collecting sheet is a monoblock sheet material; Said pipeline comprises a plurality of thermal-collecting tubes and comb; Said a plurality of thermal-collecting tube is located at side by side on the heat collecting sheet and with heat collecting sheet and is fused, and said comb joins with each thermal-collecting tube and communicates, and the water after each thermal-collecting tube heat absorption is exported by comb.
Compared with prior art; Said flat-plate solar heat collector adopts the heat collecting sheet of a monoblock sheet-form, can produce heat loss hardly, and a plurality of thermal-collecting tube and heat collecting sheet fuse; Make solar energy impinges behind heat collecting sheet, can conduct to heat energy in the pipeline efficiently; And the heat collecting sheet of a monoblock sheet-form need not splice operation, saves manufacturing cost thus.
Description of drawings
Fig. 1 is the flat-plate solar heat collector sketch map that the embodiment of the invention provides.
Fig. 2 is the cross section structure sketch map of the flat-plate solar heat collector that provides of the embodiment of the invention.
Fig. 3 is the structural representation of the expanded material of the flat-plate solar heat collector among Fig. 1.
Fig. 4 is the perspective view of the back shroud of the flat-plate solar heat collector among Fig. 1.
Fig. 5 is the border structure sketch map of the flat-plate solar heat collector among Fig. 1.
Fig. 6 is the heat collecting sheet and the pipeline combination structural representation of the flat-plate solar heat collector among Fig. 1.
Fig. 7 is the sketch map at another visual angle of heat collecting sheet and the pipeline combining structure of the flat-plate solar heat collector among Fig. 1.
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
See also Fig. 1 and 2, the flat-plate solar heat collector 10 that provides for the embodiment of the invention.This flat-plate solar heat collector 10 comprises housing and the pipeline that is arranged in the heat absorption housing, and housing comprises heat collecting sheet 22, back shroud 24, the frame 26 of heat collecting sheet 22 and back shroud 24 is tightly connected.Wherein, Heat collecting sheet 22 is monoblock sheet materials; Pipeline comprises a plurality of thermal-collecting tubes 32 and comb 34, and a plurality of thermal-collecting tubes 32 are located at side by side on the heat collecting sheet 22 and with heat collecting sheet 22 and are fused, and comb 34 joins with each thermal-collecting tube 32 and communicates; Water after each thermal-collecting tube 32 heat absorption imports in the comb 34, by comb 34 output hot water.
Cover hermetically on the heat collecting sheet 22 and establish the low iron safety glass 21 of a ultrawhite, safety glass 21 adopts the low iron glass material of high transmittance ultrawhite.Safety glass 21 also can be replaced with embossing ultrawhite safety glass, through at ultrawhite safety glass embossed surface, to improve the transmitance of glass.
In the present embodiment, heat collecting sheet 22 adopts the copper sheet of 0.2 millimeter thickness, and the width of heat collecting sheet 22 can be adjusted in 250～800mm, can select for use according to different needs.Heat collecting sheet 22 sunny slope vacuum magnetic-control sputterings deposit selectivity and absorb multilayer film; This multilayer film comprises infrared external reflection rete, two-layer absorbing membranous layer and antireflection film layer from bottom to top successively; Wherein the infrared external reflection rete is the copper thin layer of plated metal attitude, and two-layer absorbing membranous layer all is oxygen nitrogen nichrome NiCrO
xN
yThin layer, antireflection film layer are dielectric attitude oxygen nichrome NiCrO
xThin layer is with volume to volume formula reactive magnetron sputtering plated film mode plated film.The absorption multilayer film of this plated film mode and formation thereof has changed traditional oxidation or spraying coating process, has improved photo-thermal conversion efficiency.This multilayer film has anti-oxidant, durable, advantages such as color consistency, and its solar absorptance is higher than 95%, and infrared emittance is lower than 5%.
Have the space between heat collecting sheet 22, a plurality of thermal-collecting tube 32, frame 26 and the back shroud 24, be provided with polyurethane foam material 28 in this space.Polyurethane foam material mainly is the two component polyurethane (liquid state) that has mixed.In polyurethane foam material 28 forming processes; Polyurethane foam liquid in the space internal reaction, expansion molding, form the foam of filling full whole space gradually; Be integrally formed with heat collecting sheet 22, a plurality of thermal-collecting tube 32, frame 26 and back shroud 24 these elements, realize global formation.Polyurethane foam material 28 possesses many functions such as insulation, waterproof, sound insulation, absorbing simultaneously; The insulation material that its heat-insulating property brilliance is a thermal conductivity factor minimum (≤0.024, the floride-free foaming technique of environmental protection) in the present building materials, thermal resistance value is the highest, thermal conductivity factor is merely the half the of polystyrene block; And have superpower self-adhesion performance (need not any middle binding material), firm with the bonding of back shroud 24 and thermal-collecting tube 22; And chemical property is stable, and long service life does not constitute pollution to surrounding environment.Behind the foaming, as shown in Figure 3, the profile of insulation material 28 is corresponding with the shape of back shroud 24, a plurality of thermal-collecting tube 32, heat collecting sheet 22, frame 26, plays abundant heat preservation effect.In addition, as illustrated in fig. 1 and 2, the outer wall of a plurality of thermal-collecting tubes 32 is provided with hot radiation protective layer 29, for example, and metallized film on the outer wall of a plurality of thermal-collecting tubes 32.
As shown in Figure 4; Back shroud 24 can be the bonnet of disposable stamping forming spirogyrate; Comprise flat bottoms 242 and by the flange 243 of flat bottoms 242 edge protuberance; Back shroud 24 joins through flange 243 and frame 26, and for example, the screw 27 through flange connector 243 and frame 26 is fixed in back shroud 24 on the frame 26.The back shroud 24 of present embodiment is the zinc-iron skin of 0.3 millimeters thick.The position of back shroud 24 corresponding combs 34 also offers opening 245, so that the two ends of each comb 34 are run through and stretched out opening 245, conveniently is connected with outer water tube.Traditional bonnet all is to adopt separated structures, comprises the flat and sidewall that is separated from each other respectively, and all is the straight-plate-type structure, is easy to generate seepage like this, and inconvenient and building is complementary.And the back shroud of present embodiment 24 adopts the integral type convex structures, has mechanical strength height, characteristics such as corrosion-resistant, and adopts and inlay fixed form and be connected with frame 26, and it is effective to be incubated, to discharge water.Owing to adopt disposable punch forming mode to process, thereby can mold the back shroud of polymorphic structure, so that combine with the profile of building.And this integrate shaped type back shroud 24 has good performances such as antivibration bending resistance; In the present embodiment; Each element of heat collector 10 can adopt all-metal construction, so also can be according to the direct heat collector junction as abnormity (definite shape) of the different structural planes of building.
As shown in Figure 5, display bezel 26 has curtain wall formula mounting structure, and it comprises frame section bar 260, and the position of section bar 260 corresponding safety glass 21 is provided with a jaw 262, so that safety glass 21 is embedded at jaw 262; The position of the flange 243 of corresponding back shroud 24 is provided with an embedding groove 264, with the flange 243 of inlaying back shroud 24, back shroud 24 is fixed on the frame 26.Wherein, Jaw 262 and embedding groove 264 are located at the upper and lower of frame section bar 260 respectively, between jaw 262 and embedding groove 264, also have a draw-in groove 266, and the position of draw-in groove 266 and jaw 262 and embedding groove 264 are interlaced; And the opening direction of its opening direction and jaw 262 and embedding groove 264 is opposite; Thereby be convenient to fasten, thus frame 26 be fixed in balcony or body of wall, can be installed on building as curtain wall with some objects of balcony or body of wall.Safety glass 21, frame 26 and back shroud 24 form seal cavity.
Shown in Fig. 6 and 7, a plurality of thermal-collecting tubes 32 are located on the heat collecting sheet 22 side by side, and are fixedly connected with heat collecting sheet 22 through the mode of high-frequency method welding.Comb 34 is two combs, is communicated in the two ends of a plurality of thermal-collecting tubes 32 respectively, and promptly a plurality of thermal-collecting tubes 32 are clipped between two combs 34.Two combs 34 also can be fixedly connected with the mode of heat collecting sheet 22 through the high-frequency method welding, and comb 34 also can be fixedly connected through the mode of high-frequency method welding with a plurality of thermal-collecting tubes 32 simultaneously.Comb 34 diameters are greater than the diameter of thermal-collecting tube 32, and the comb 34 in the present embodiment is respectively thin-wall copper pipe with a plurality of thermal-collecting tubes 32, to promote heat conduction efficiency.In the present embodiment,, do not damage rete basically, guarantee pressure-bearing, the anti-freezing property of good heat conductivity and system, long service life because heat collecting sheet 22 adopts the high-frequency method welding with thin-wall copper pipe formula comb 34 and a plurality of thermal-collecting tubes 32.Thus, the structure that heat collecting sheet 22, a plurality of thermal-collecting tube 32 and comb 34 become one can greatly reduce thermal resistance, improves heat conduction efficiency.
When making and assembling, earlier a plurality of thermal-collecting tubes 32 are welded on the heat collecting sheet 22 with comb 34, refill upper side frame 26; Safety glass 21 is embedded in the jaw 262 of frame 26; On a plurality of thermal-collecting tubes 32 and heat collecting sheet 22, lay polyurethane foam material, back shroud 24 is inlayed be fixed on the frame 26 then, make the polyurethane material foaming at a certain temperature; Be full of the space, promptly obtain the thermal-collecting tube of present embodiment.
See also following table 1, show the hot property of the heat collecting sheet 22 of present embodiment, wherein, sunlight light intensity Luax69000-70000.Can know that by table after through irradiation 5 minutes, the temperature of heat collecting sheet 22 promptly can reach 92 ℃, after 40 minutes, especially up to 135 ℃, explains that the heat collecting sheet 22 of present embodiment has very high-speed heat absorption capacity.
Table 1 heat collecting sheet experimental test data (intensification)
| Time | 5min | 6min | 10min | 20min | 40min |
| Temperature | 92℃ | 100℃ | 115℃ | 130℃ | 135℃ |
In addition; The heat collector 10 of present embodiment can be applicable to large-scale solar water heating system, is fit to the frame that curtain wall is installed because the frame 26 of heat collector 10 adopts, and comb 34 outstanding back shrouds 24; Make to install easily between a plurality of heat collectors 10 and combine; Therefore, the not only heat supply separately of the heat collector 10 of present embodiment can also be formed extensive heating system central heating.For example can a plurality of (about 50) 1m * 2m heat collector be arranged in together, form 100m
2Collecting system.
See also following table 2, show 100m
2Solar water heating system data that heat storage water tank is surveyed can be known by the data in the following table 2, after the irradiation through the sun on daytime, when having arrived the 5 PM clock, promptly can obtain the temperature more than 75 ℃, and be two 4.5m
3Water temperature in the water tank all reaches more than 75 ℃.The heat collecting sheet 22 of this explanation present embodiment not only can be formed large-area collecting system, and the water temperature of big capacity tank also can reach higher temperature.
Table 2 100m
2Solar heating system engineering's data that heat storage water tank is surveyed (two 4.5m
3Water tank)
By on can know; Embodiment of the invention flat-plate solar heat collector 10 adopts the heat collecting sheet 22 of a monoblock sheet-form; Can not produce any heat loss; And a plurality of thermal-collecting tubes 32 fuse with heat collecting sheet 22, make that solar energy impinges arrives heat collecting sheet 22 after, can conduct to heat energy in the pipeline efficiently; And the heat collecting sheet 22 of a monoblock sheet-form need not splice operation, saves manufacturing cost thus.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a flat-plate solar heat collector is used for large-scale solar water heating system, and it comprises housing and the pipeline that is arranged in the housing; Said housing comprises heat collecting sheet, back shroud, the frame of heat collecting sheet and back shroud that is tightly connected, and it is characterized in that, said heat collecting sheet is a monoblock sheet material; Said pipeline comprises a plurality of thermal-collecting tubes and comb, and said a plurality of thermal-collecting tubes are located at side by side on the heat collecting sheet and with heat collecting sheet and are fused, and said comb joins with each thermal-collecting tube and communicates; Water after each thermal-collecting tube heat absorption is exported by comb; Said back shroud is the bonnet of disposable stamping forming spirogyrate, and said spirogyrate back shroud comprises flat bottoms and by the flange of flat bottoms edge protuberance, said spirogyrate back shroud joins through flange and frame; Said frame is provided with embedding groove; The flange of said back shroud is fixed in the embedding groove of frame, and said heat collector also comprises low iron safety glass of ultrawhite or the embossing ultrawhite safety glass that is embedded in the said frame and seals said heat collecting sheet, and the position of corresponding ultrawhite safety glass of said frame or embossing ultrawhite safety glass is provided with a jaw; Said glass is embedded at jaw; Said frame also is provided with draw-in groove, and said draw-in groove is between jaw and embedding groove, and the opening direction of staggered and opening direction of said draw-in groove position and jaw and embedding groove and jaw, embedding groove is opposite.
2. flat-plate solar heat collector as claimed in claim 1 is characterized in that, the space filling between said heat collecting sheet, a plurality of thermal-collecting tube, frame and the back shroud has polyurethane foam material.
3. flat-plate solar heat collector as claimed in claim 1 is characterized in that, said heat collecting sheet adopts volume to volume magnetron sputtering membrane process to be formed with the heat absorptivity multilayer film at sunny slope.
4. flat-plate solar heat collector as claimed in claim 1 is characterized in that, said a plurality of thermal-collecting tubes are fixedly connected through method of laser welding with said heat collecting sheet.
5. flat-plate solar heat collector as claimed in claim 1 is characterized in that the outer wall of said a plurality of thermal-collecting tubes is formed with hot radiation protective layer respectively.
6. flat-plate solar heat collector as claimed in claim 1 is characterized in that, said frame has curtain wall formula mounting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810216995XA CN101726122B (en) | 2008-10-29 | 2008-10-29 | Flat plate type solar heat collector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810216995XA CN101726122B (en) | 2008-10-29 | 2008-10-29 | Flat plate type solar heat collector |
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| CN101726122A CN101726122A (en) | 2010-06-09 |
| CN101726122B true CN101726122B (en) | 2012-06-27 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954603A (en) * | 2012-12-05 | 2013-03-06 | 中国科学院上海技术物理研究所 | Flat-panel solar heat collector |
| CN104344573B (en) * | 2013-08-08 | 2016-08-10 | 深圳市拓日新能源科技股份有限公司 | A kind of heat collector, the manufacture method of heat collector and solar airconditioning |
| CN105135155A (en) * | 2015-09-12 | 2015-12-09 | 泰州市鑫润天冶金保温材料有限公司 | Composite reflective insulation plate special for power plant pipeline |
| CN105823239A (en) * | 2016-03-25 | 2016-08-03 | 铜陵市宏安太阳能科技有限公司 | Flat-plate solar heat collector production method |
| CN115355744A (en) * | 2022-07-05 | 2022-11-18 | 上海格熵航天科技有限公司 | Saddle shell integration loop heat pipe evaporimeter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2088671U (en) * | 1991-01-23 | 1991-11-13 | 吴长盛 | Solar energy quick water heater |
| CN2200158Y (en) * | 1994-07-15 | 1995-06-07 | 中国科学院广州能源研究所 | High effective full moist solar heat collector |
| CN2224380Y (en) * | 1995-08-09 | 1996-04-10 | 王英智 | Hot-pipe type solar heat-collector |
| CN1391075A (en) * | 2001-06-07 | 2003-01-15 | 北京桑普阳光技术有限公司 | Heat collector of solar water heater |
| CN101022138A (en) * | 2007-03-16 | 2007-08-22 | 清华大学 | Solar photovoltaic/photothermal combined apparatus |
-
2008
- 2008-10-29 CN CN200810216995XA patent/CN101726122B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2088671U (en) * | 1991-01-23 | 1991-11-13 | 吴长盛 | Solar energy quick water heater |
| CN2200158Y (en) * | 1994-07-15 | 1995-06-07 | 中国科学院广州能源研究所 | High effective full moist solar heat collector |
| CN2224380Y (en) * | 1995-08-09 | 1996-04-10 | 王英智 | Hot-pipe type solar heat-collector |
| CN1391075A (en) * | 2001-06-07 | 2003-01-15 | 北京桑普阳光技术有限公司 | Heat collector of solar water heater |
| CN101022138A (en) * | 2007-03-16 | 2007-08-22 | 清华大学 | Solar photovoltaic/photothermal combined apparatus |
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