CN101319823B - Novel plate type solar heat collection method and its heat collectors - Google Patents
Novel plate type solar heat collection method and its heat collectors Download PDFInfo
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- CN101319823B CN101319823B CN2008101162953A CN200810116295A CN101319823B CN 101319823 B CN101319823 B CN 101319823B CN 2008101162953 A CN2008101162953 A CN 2008101162953A CN 200810116295 A CN200810116295 A CN 200810116295A CN 101319823 B CN101319823 B CN 101319823B
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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 provides a novel flat typed solar energy collect method and a heat collector. The flat typed solar energy collect method is as follows: a fin with a plurality of arrangement hole channels in same direction or channel flows is arranged inside a plat typed frame. Liquid working medium is filled in the plat frame after the flat frame is processed vacuum treatment. The working medium naturally forms heat pipe effect in the hole channels or channel flows formed by the fin. The end part of the flat frame in which the condensation end of the heat pipe is located is arranged inside a water storage tank. The condensation end is condensed and exchanged heat in the water storage tank, and the hot water is made. The heat collector has the characteristics of simple structure, reliable working condition, low cost, free maintenance, high heat collection efficiency, being freeze proof and energy-saving.
Description
Technical field
The present invention relates to technical field of solar utilization technique, particularly a kind of novel flat heat collecting method and adopt the heat collector of this method.
Background technology
The exhaustive exploitation of traditional energy such as coal and oil and use causes the day by day exhausted of this non-renewable biomass energy, and solar energy just more and more is subjected to the attention of current society as reproducible environmental protection new forms of energy.
The key areas that solar thermal collector utilizes as solar energy, for other solar utilization technique, it is not only simple in structure, with low cost, be convenient to safeguard, and dependability height, after the once mounting, need not to consume any extrinsic motive, can provide a large amount of hot water, greatly make things convenient for, improved people's quality of life for people's life, activity in production.
At present, the solar thermal collector of widespread usage mainly comprises following four kinds on the market: flat, electron tubes type, heat pipe-type, U type tubular type.Four types respectively have pluses and minuses, all are that the user selectes according to local climate feature and required hot water temperature, purposes generally.
The advantage of flat type solar heat collector is very outstanding: the high board-like structure of metal tube that adopts of the thermal efficiency, and intensity, life-span and functional reliability are all very good, can be non-maintaining, working life can reach 15 years, has very high cost performance; Its topmost shortcoming is exactly not freeze proof, be positioned at the user of southern area for Guangdong, Fujian, Hainan, Guangxi, Yunnan etc., because this area's free of frost in winter weather, owing to need not consider freeze proof problem in winter, the user of this area adopts flat type solar heat collector the most suitable.
The electron tubes type solar thermal collector had both had freeze proof characteristic, and cost performance is also than heat pipe-type, U type tube type solar collector height, and its major defect is: not pressure-bearing, easily scaling, easily explosion; User for the Changjiang river, area, the Huanghe valley has the frost weather winter, and its general temperature is higher than-20 ℃, therefore can select the electron tubes type solar thermal collector for use.
Hot pipe type solar heat collector can be resisted-40 ℃ low temperature, this is that flat type solar heat collector and electron tubes type solar thermal collector are incomparable, but the cost of hot pipe type solar heat collector is very high, and the thermal efficiency is very low, therefore three provinces, the Inner Mongol, Xinjiang, Tibet region northeastward, because this area's winter temperature is extremely low, the user in the one's respective area just must select hot pipe type solar heat collector.
For the hot water supply of industrial use, selecting preferably is the flat solar water heater.Industry hot water requirement is big, need very large-area solar thermal collector, but require not fragile, the easy care pressure-bearing of heat collector, flat type solar heat collector has significant superiority in this respect, and electron tubes type, heat pipe-type, U type tube type solar collector all are unsuitable for this large scale industry and use.For example, the electron tubes type solar thermal collector has 8 ‰ breakage rate every year on average, and in whole collecting system, breaking of a pipe will cause the paralysis of whole system.
In sum, the various solar thermal collectors of using exist such or such defective on freezing tolerance, the thermal efficiency, functional reliability at present, thereby making to use is subjected to bigger restriction, has reduced popularization and development that solar energy utilizes.
Summary of the invention
At defective that exists in the prior art and deficiency, the object of the present invention is to provide a kind of the have novel plate type solar heat collection method with high collection effciency of extensive practicality and the solar thermal collector that adopts this method, solar heat collection method of the present invention and heat collector have had the advantage of hot pipe type solar heat collector and flat type solar heat collector concurrently.
Technical scheme of the present invention is as follows:
Novel plate type solar heat collection method, it is characterized in that: described plate type solar heat collection method has some fins of arranging duct or conduit in the same way by being provided with in flat framework, described fin is a W shape corrugated board chip architecture, the peak valley of the ripple struction of fin part is joined and soldering with the plate inwall of plate frame respectively, each peak valley on the fin all and form between the wooden partition with poroid pipeline, whole fin is separated into some poroid pipelines with the inside of frame space, in the plate frame after application of vacuum filling liquid working medium, working medium is in duct or conduit that fin forms, naturally form the heat pipe effect, the plate frame end at the condensation end place of heat pipe is arranged in the storage tank, and described condensation end carries out condensing heat-exchange to make hot water in the water storage of water tank.
A kind of employing is the novel plate type solar heat collection device of heat collecting method as mentioned above, comprise the flat-plate collector framework, the upper surface of described framework is the extinction face, heat absorbing coating is arranged on it, it is characterized in that: be provided with fin in the framework of described flat-plate collector, described fin is a W shape corrugated board chip architecture, described fin is between the upper and lower end face of framework, the peak valley of the ripple struction of fin part is joined and soldering with the plate inwall of plate frame respectively, each peak valley on the fin all and form between the wooden partition with poroid pipeline, whole fin is separated into some poroid passages with the inside of frame space, framework inside is vacuum structure, and be filled with working medium, become whole flat-plate heat pipe or most parallel non-circular heat pipe, tabular heat collector one end is arranged in the storage tank or with water pipe and links to each other, and the condensation heat release is with preparation hot water in water tank or in the water pipe.
Described fin for that make by hard material, that have the penetrating hole of plurality of integral in it, have the network structure with the suitable profile of plate frame interior shape, dull and stereotyped frame forms whole plate heat pipe.
Described fin is a W shape corrugated board chip architecture, and each W-shaped peak paddy position and frame inner wall join, and forms the triangle duct that is arranged alternately.
Each duct path that described fin forms is that an end is convenient to the disposable filling liquid that vacuumizes in the opening of framework inner chamber, the sealing of joining of the other end and frame inner wall, and each duct path is independent heat pipe structure.
Each its two ends of duct path that described fin forms are all open in the framework inner chamber, and each duct path communicates in the framework inner chamber and forms one heat pipe structure arranged side by side.
Described each framework that includes inner fins is a heat absorbing units, or heat absorbing units of the common composition of the framework that comprises inner fins respectively more than 2 or 2, described heat collector can link to each other the condensing heat-exchange end of several heat absorbing units with total hot-water heating system, constitute solar energy collector system.
Described fin and framework connection are all by integral braze-welded being structure as a whole in the soldering oven.
Technique effect of the present invention:
The present invention has some fins of arranging duct or conduit in the same way by being provided with in flat framework, in the plate frame after application of vacuum the can refrigeration working medium, refrigeration working medium is in duct or conduit that fin forms, naturally form the heat pipe effect, the plate frame end at the condensation end place of heat pipe is arranged in the storage tank, and described condensation end carries out condensing heat-exchange to make hot water in the water storage of water tank.This solar heat collection method has the high efficiency of full platen surface thermal-arrest on the one hand, the characteristic of the efficient thermotransport of inner heat pipe, make this flat plate collector have high efficiency, anti-low temperature, and wing has good characteristics such as augmentation of heat transfer and very big stiffened flat plate heat pipe bearing strength in the flat-plate heat pipe, this flat type solar heat collector has the structural strength height, non-maintaining advantage, moreover but the framework internal cavity is separated into some a large amount of open type pore passage structures by inner fin, by can refrigeration working medium after the application of vacuum, thereby make each duct in the inner chamber all form heat pipe structure, this heat pipe structure has then possessed the freeze proof characteristic of hot pipe type solar heat collector, thereby make solar thermal collector of the present invention not only possess the advantage of flat type solar heat collector, and had the freeze proof characteristic of hot pipe type solar heat collector concurrently, make solar thermal collector of the present invention have range of application and collecting efficiency more widely, combine flat and advantage heat pipe type heat collector, eliminated defective and deficiency separately simultaneously, had simple in structure, reliable operation, with low cost, non-maintaining, the collecting efficiency height, freeze proof characteristics.
In order further to improve the freeze proof characteristic of flat type solar heat collector of the present invention, can also adopt freeze proof refrigeration working medium with further raising anti-freezing property, make flat type solar heat collector of the present invention have bigger freeze proof applicability.
Adopt built-in fin in the framework, fin can play the effect of support reinforcing to framework, can further improve the intensity of frame structure, on the contrary, adopt plate armature of the present invention, can further reduce the sheet metal thickness of frame structure, just reduce the material consumption of framework, reduce the material cost of product, have energy-saving and cost-reducing effect.
Description of drawings
Shown in Figure 1 is a kind of example structure schematic diagram of solar thermal collector of the present invention;
Shown in Figure 2 is a kind of example structure schematic diagram of solar thermal collector of the present invention;
Shown in Figure 3 is a kind of modularization example structure schematic diagram of solar thermal collector of the present invention;
Shown in Figure 4 is a kind of modularization example structure schematic diagram of solar thermal collector of the present invention;
Shown in Figure 5 is the dull and stereotyped internal cross section structural representation of solar thermal collector of the present invention;
Shown in Figure 6 is the part enlarged diagram of the dull and stereotyped internal cross section structure of solar thermal collector of the present invention;
Shown in Figure 7 is the structural representation of the dull and stereotyped interior heat pipe both ends open of solar thermal collector of the present invention;
Shown in Figure 8 is the open structural representation of dull and stereotyped interior heat pipe one end of solar thermal collector of the present invention.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing.
Be illustrated in figure 1 as the structural representation of solar thermal collector of the present invention.
Solar thermal collector comprises absorber plate 1, heat exchanger 2 and import and export---the water pipe 3 and the water pipe 4 of slab construction in the present embodiment, wherein the endotherm section 12 of absorber plate 1 is exposed on the sunny side is provided with to absorb sunray, heat release section 13 is arranged in the heat exchanger 2, heat release section 13 is the condensation heat release in heat exchanger 2, and the water storage in the heat exchanger 2 is heated.
The side that endotherm section 12 faces south is the extinction face, its heat absorbing coating 8 that is provided with energy efficient absorption solar energy is (referring to Fig. 5, Fig. 6), to improve heat absorption efficiency as far as possible, be provided with fin 11 in the plate frame of absorber plate 1, fin 11 is between the upper and lower end face of framework, fin shown in the figure 11 is for having the plate of W shape ripple struction, the peak valley position of the ripple struction of fin 11 joins with the plate inwall of absorber plate 1 respectively, each peak valley on the fin 11 all and form a poroid pipeline between the wooden partition, whole fin 11 is separated into some poroid pipelines with the inside of frame space, framework inside is vacuum structure, and be filled with refrigeration working medium, filling is in an end of each poroid passage respectively for working medium, and these poroid passages are with regard to the corresponding heat pipe that becomes.
The operation principle of present embodiment: endotherm section 12 absorbs solar radiant heat, working medium heat absorption evaporation in the heat pipe, high-temperature vapour enters endotherm section 12 by each pipeline respectively and carries out the condensation heat release, with heat exchanger 2 in the water heat-shift after be condensed into liquid and flow back to absorber plate 1 bottom, liquid heat absorption evaporation again ... so go round and begin again, just the radiations heat energy that absorber plate 1 is absorbed can be passed to continuously the water in the heat exchanger 2, thereby will reach the purpose of utilizing solar radiation heat.
For fin 11 formed each pipeline, if having a large amount of through holes on the tube wall that forms each pipeline, then each pipeline is interconnected, and the inner chamber of whole absorber plate 1 forms a total heat pipe structure.
In order further to improve the thermal-arrest usefulness of heat collector of the present invention, absorber plate 1 heat absorbing side top is provided with the light-passing board 9 that prevents heat leakage, light-passing board 9 is made by the material with good printing opacity and fine heat-insulating property, be provided with air layer between light-passing board 9 and the absorber plate 1, absorber plate 1 opposite side is provided with heat insulation layer 10.Heat insulation layer 10 is made by the material with well insulated ability, and for rigidity and the intensity that increases whole device, heat insulation layer can select for use polytetrafluoroethylmaterial material to make.The cross-sectional structure of absorber plate as shown in Figure 5
Absorber plate also can adopt modularized design, absorber plate module 8 as shown in Figure 3.Each modular unit all can comprise the heat insulation layer 10 at air blanketing between glass plate 9, glass plate 9 and absorber plate 1 upper surface and place, absorber plate lower surface.
This absorber plate 1 that has a plurality of fine conduits, absorber plate 1 can utilize REFRIGERATION SYSTEM DRIVEN BY CAPILLARY FORCE to make every effort to promote the steam of evaporator section is moved to condensation segment faster, simultaneously also can impel condensate liquid to turn back to evaporator section faster evaporates once more, circulation successively, clearly, this absorber plate structure has than the existing bigger collecting efficiency of common thermal-arrest plate.
The above only is a preferred implementation of the present invention.For a person skilled in the art, can also make a lot of modification and improvement, but these modification and improvement all will fall into protection scope of the present invention according to essence of the present invention.
Claims (10)
1. novel plate type solar heat collection method, it is characterized in that: described plate type solar heat collection method has some fins of arranging duct or conduit in the same way by being provided with in flat framework, described fin is a W shape corrugated board chip architecture, the peak valley of the ripple struction of fin part is joined and soldering with the plate inwall of plate frame respectively, each peak valley on the fin all and form between the wooden partition with poroid pipeline, whole fin is separated into some poroid pipelines with the inside of frame space, in the plate frame after application of vacuum the pouring in liquid refrigeration working medium, refrigeration working medium is in duct or conduit that fin forms, naturally form the heat pipe effect, the plate frame end at the condensation end place of heat pipe is arranged in the storage tank, described framework absorbs solar radiation and impels working medium to evaporate in heat pipe, carries out condensing heat-exchange to make hot water in the water storage of working medium evaporation back in condensation end and water tank.
2. one kind is adopted the novel plate type solar heat collection device of heat collecting method according to claim 1, comprise the flat-plate collector framework, it is characterized in that: be provided with fin in the framework of described flat-plate collector, described fin is a W shape corrugated board chip architecture, described fin is between the upper and lower end face of framework, the peak valley of the ripple struction of fin part is joined and soldering with the plate inwall of plate frame respectively, each peak valley on the fin all and form between the wooden partition with poroid pipeline, whole fin is separated into some poroid passages with the inside of frame space, framework inside is vacuum structure, and be filled with working medium, naturally form the heat pipe effect after each passage can working medium again, tabular heat collector one end is arranged in the storage tank, and the condensation heat release is with preparation hot water in the water storage in water tank.
3. novel plate type solar heat collection device as claimed in claim 2 is characterized in that: described fin for that make by hard material, that have the penetrating hole of plurality of integral in it, have a network structure with the suitable profile of plate frame interior shape.
4. novel plate type solar heat collection device as claimed in claim 2 is characterized in that: each W-shaped peak paddy position and frame inner wall join, and form the triangle duct that is arranged alternately.
5. novel plate type solar heat collection device as claimed in claim 2 is characterized in that: each duct path that described fin forms is that an end is open at the framework inner chamber, the sealing of joining of the other end and frame inner wall, and each duct path is independent heat pipe structure.
6. novel plate type solar heat collection device as claimed in claim 2 is characterized in that: each its two ends of duct path that described fin forms are all open in the framework inner chamber, and each duct path communicates in the framework inner chamber and forms the integral heat pipe structure.
7. novel plate type solar heat collection device as claimed in claim 2, it is characterized in that: described each framework that includes inner fins is a heat absorbing units, or heat absorbing units of the common composition of the framework that comprises inner fins respectively more than 2 or 2, described heat collector can link to each other the condensing heat-exchange end of several heat absorbing units with total storage tank, constitute solar energy collector system.
8. novel plate type solar heat collection device as claimed in claim 2 is characterized in that: described fin and framework connection are all by integral braze-welded being structure as a whole in the soldering oven.
9. novel plate type solar heat collection device as claimed in claim 2, it is characterized in that: arranged outside has light-passing board, can play heat insulation effect.
10. novel plate type solar heat collection device as claimed in claim 9.It is characterized in that: described flat plate collector bottom is provided with warming plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101162953A CN101319823B (en) | 2008-07-08 | 2008-07-08 | Novel plate type solar heat collection method and its heat collectors |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101162953A CN101319823B (en) | 2008-07-08 | 2008-07-08 | Novel plate type solar heat collection method and its heat collectors |
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| Publication Number | Publication Date |
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| CN101319823A CN101319823A (en) | 2008-12-10 |
| CN101319823B true CN101319823B (en) | 2011-08-17 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865542A (en) * | 2010-06-21 | 2010-10-20 | 邹飞龙 | Plate-type solar water heater |
| GB2489401B (en) | 2011-03-21 | 2014-04-23 | Naked Energy Ltd | Solar energy converter |
| CN105066471A (en) * | 2015-07-23 | 2015-11-18 | 赵耀华 | Heat-pipe type panel solar air collector and heating method thereof |
| CN110906570B (en) * | 2019-03-14 | 2021-06-25 | 山东大学 | Loop heat pipe solar heat collector system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201014793Y (en) * | 2007-03-26 | 2008-01-30 | 深圳市晴尔太阳能科技有限公司 | Flat type solar heat absorber |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201014793Y (en) * | 2007-03-26 | 2008-01-30 | 深圳市晴尔太阳能科技有限公司 | Flat type solar heat absorber |
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