CN101907361A - Transparent plastic solar heat collection device - Google Patents
Transparent plastic solar heat collection device Download PDFInfo
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- CN101907361A CN101907361A CN2009100160014A CN200910016001A CN101907361A CN 101907361 A CN101907361 A CN 101907361A CN 2009100160014 A CN2009100160014 A CN 2009100160014A CN 200910016001 A CN200910016001 A CN 200910016001A CN 101907361 A CN101907361 A CN 101907361A
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- heat
- working medium
- absorption working
- heat absorption
- medium cavity
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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
Abstract
The invention relates to a transparent plastic solar heat collection device which comprises a heat collection plate and is characterized in that the heat collection plate comprises a heat absorption working medium cavity made of transparent plastic, wherein a black heat absorption working medium is filled in the heat absorption working medium cavity, and the heat collection plate and a heat exchanger form a circulation loop; the heat absorption working medium cavity can be made of thermosetting transparent resin FRP (Fiber Reinforce Plastic) or thermoplastic transparent resin; and high blackness liquid with high absorption rate is adopted as the heat absorption working medium. The transparent plastic solar heat collection device has main technical characteristics that sunlight can be directly absorbed by the heat absorption working medium and converted into heat energy, and the heat absorption working medium is a heating medium. The invention changes the heat collection method of the traditional solar heat collection device or system, has light weight, high strength and flexible and convenient use and is easy to form a heat collection system and easier for large-scale industrial production.
Description
Technical field
The invention belongs to field of solar energy utilization, particularly a kind of transparent plastic solar heat collection device.
Background technology
Solar energy is the energy of a kind of cleaning and sustainable generation, and development solar energy science and technology can reduce uses fossil fuel in power generation process, thereby alleviates air pollution and the problem of global warming.The solar energy utilization has become present worldwide scientific research and has paid close attention to most and be devoted to one of developing industry.
The basic mode that solar energy utilizes:
Solar thermal utilization also claims photo-thermal conversion, opto-electronic conversion, photochemical utilization, the utilization of photoproduction thing etc.Mainly be the development solar thermal utilization at present, i.e. photo-thermal conversion.Use maximum solar collecting devices to mainly contain flat plate collector, vacuum tube collector, concentrating collector at present.Usually according to the different of temperature that can reach and purposes the solar energy heat utilization is divided into low temperature utilization (＜200 ℃), middle temperature utilization (200-350 ℃).Popularize and utilization rate is the highest is electron tubes type heat collector and heat pipe type heat collector.These two kinds of thermal-arrest modes are that the luminous energy with the sun changes into heat energy on the black wall of thermal-collecting tube, again medium, water or working medium in the thermal-arrest tube wall conducts to pipe.The energy transfer process of solar energy heat collector all is: solar energy--thermal-arrest tube wall (non-printing opacity)-----water or working medium.The utilization of solar energy is subjected to the limitation that heat collector thermal-arrest mode comprises problems such as vacuum tube material-structure manufacture craft, technical problem, life of product and environment for use, economical cost.An industry development that has a extensive future is slow, and economic and social benefit is remarkable inadequately.
Summary of the invention
Technical problem to be solved by this invention provides a kind of transparent plastic solar heat collection device, changes traditional thermal-arrest mode, and solar energy conversion efficiency height is convenient to processing and fabricating, is easy to mechanization, automated production, and helps forming large-area heat collecting engineering.
A kind of transparent plastic solar heat collection device of the present invention comprises the thermal-arrest plate, it is characterized in that described thermal-arrest plate comprises the heat absorption working medium cavity of being made by transparent plastic, is full of black heat absorption working medium in the heat absorption working medium cavity, and thermal-arrest plate and heat exchanger form closed circuit.
The absorb heat material of working medium cavity of the present invention can be thermosetting transparent resin FRP, also can be thermoplastic transparent resin (thermoplastic PC resin).The intensity height, the light transmittance height, in light weight, be fit to very much large-area manufacturing production.The plastic material thermal conductivity factor is lower, and good thermal insulation is arranged self, is not very high to the requirement of vacuum insulation, and has corrosion-resistant, the anti-multiple advantages such as mist, uvioresistant, anti-hail of revealing.Be high light transmissive material between the sunny slope of heat collector and the heat absorption working medium like this.
With thermoplastic PC resin is example, and the light transmittance of this material can be up to 88%, nearly 30 years of light aging life-span.Fire-retardant B1 level, heatproof-40 ℃-110 ℃, serviceability temperature is 110 ℃ continuously, weight is the 1/12-1/15 of thickness of glass, impact strength be glass 250-300 doubly, the 20-30 of lucite doubly, thermal coefficient of expansion is 0.7 * 10
-5, thermal conductivity factor is 0.2W/mK, deformation temperature (load 1.8MPa) 135.Therefore, provide the condition that well makes things convenient for for making the large-sized solar engineering.
Heat absorption working medium adopts has the very high high blackness liquid of absorptivity.Can be the high blackness aqueous solution, high blackness conduction oil or oil hydrosol, and be added with frost-resistant material.
Major technique characteristics of the present invention are that solar energy is directly absorbed by heat absorption working medium, are converted into heat energy.Heat absorption working medium is heat medium and heat exchanger forms the closed-loop path, and the working medium of being absorbed heat of the water in the heat exchanger heats.Both can be to be heated water in the heat exchanger tube of heat exchanger according to common technical approach between heat absorption working medium and the heat exchanger, heat exchanger tube be heat absorption working medium outward, also can be to be heat absorption working medium in the heat exchanger tube of heat exchanger, and heat exchanger tube is outward heated water.
Another technical characterstic of the present invention is that the thermal-arrest plate also comprises the heat-exchange working medium cavity, and the back side of heat absorption working medium cavity is provided with the heat-exchange working medium cavity, and heat-exchange working medium in the heat-exchange working medium cavity and heat exchanger form closed circuit.The heat energy of heat absorption working medium cavity is conducted heat exchange rapidly by the heat-exchange working medium in the heat-exchange working medium cavity, same reason, and heat-exchange working medium and heat exchanger carry out heat exchange.Heat-exchange working medium can adopt commercially available lithium bromide superconducting fluid.
The present invention is when heat absorption working fluid chamber bulk area is smaller, and the thermal siphon phenomenon Natural Circulation that is produced by the heating density contrast between heat absorption working medium cavity and the heat exchanger also can be passed through the tubing pump forced circulation.Especially in the collecting system engineering, must increase the tubing pump circulation.
Wherein the technical scheme of some comparative optimizations of the present invention is:
The two ends of described heat absorption working medium cavity connected lower communicating tube and last communicating pipe respectively, and lower communicating tube and last communicating pipe and heat exchanger constitute closed circuit, were full of black heat absorption working medium in heat absorption working medium cavity and the closed circuit.When adopting heat-exchange working medium, the two ends of heat-exchange working medium cavity connected lower communicating tube and last communicating pipe respectively, and lower communicating tube and last communicating pipe and heat exchanger constitute closed circuit, are full of heat-exchange working medium in heat-exchange working medium cavity and the closed circuit.
The upper end of described heat absorption working medium cavity is connected with storage tank, and heat exchanger is that heat exchanger tube is arranged in the storage tank, and the lower end of heat absorption working medium cavity connects lower communicating tube.This frame mode, heat absorption working medium enters in the storage tank or the heat exchanger tube in the storage tank directly heats the water of storage tank or the water in the heat exchanger tube.
Described heat absorption working medium cavity is the tank of band raster.This frame mode makes that the bearing capacity of whole cavity is very strong, and grid has played the effect of reinforcement simultaneously.
The sunny slope of described heat absorption working medium cavity is added with vacuum transparent heat insulating layer (as air or vacuum insulation cavity).
The back side of described heat absorption working medium cavity is added with heat-reflecting layer or vacuum insulation cavity or/and heat insulation layer.
Described heat absorption working medium cavity is a plate armature.This plate armature is easier to realize large-area collecting system, and uses more conveniently, flexible, as makes solar energy link plate, roof boarding, shingle nail etc.
Heat collector of the present invention can be a plurality of thermal-arrest plate unit amalgamations (being connected or/and the collecting system that forms in parallel by a plurality of heat absorption working medium cavitys), also can be one-body molded, and its wide and high (length) is unrestricted.Between 0.5m-100m, select arbitrarily as required, also can connect into several kms.Can select to tilt with traditional heat collector during small-sized thermal-arrest, can lay on ground during large-scale thermal-arrest, use the pump forced circulation with the sunshine vertical angle.Be suitable for using in solar energy central heating and large-sized solar power station, industrial energy, desalinization, the agricultural production.
Advantage of the present invention:
Adopt the high light transmissive material of plastics between the sunny slope of heat collector and the heat absorption working medium, the transition heat efficient height of light not only, and also in light weight, the intensity height, easier industrialization large tracts of land is produced, and is easy to form collecting system.Use flexibly, conveniently, be subjected to local restriction little.The present invention has changed the traditional solar energy heat collector or the heat collecting method of system, can from low temperature utilization (＜200 ℃) to temperature utilize (200-350 ℃).Can make the solar energy utilization break limitation on the manufacture craft; no matter city, rural area all can be used; on industry, agricultural, national defence, land, ocean, mountain, explosive development takes place in multi-field, conglomerate, many environment in the air; make it to become the human main flow energy of using, for preserving our planet and huge contribution is made in human sustainable development of civilization.
Description of drawings
Fig. 1 is thermal-arrest plate embodiment 1 a cross section structure schematic diagram of the present invention;
Fig. 2 is the cross section structure schematic diagram of thermal-arrest plate embodiment 2 of the present invention;
Fig. 3 is the front view of thermal-arrest plate embodiment 2 of the present invention;
Fig. 4 is the cross section structure schematic diagram of thermal-arrest plate embodiment 3 of the present invention;
Fig. 5 is a structural representation of the present invention.
Among the figure: 1 heat absorption working medium cavity 2 air or vacuum transparent heat insulating layer 3 grid 4 frame heat-insulating protective layers, 5 air or vacuum insulation cavity 6 insulation material layers 7 heat-exchange working medium cavitys 8 last communicating pipe, 9 lower communicating tubes, 10 pumps 11 heat exchangers 12 thermal-arrest plates
The specific embodiment
As Fig. 1, the board-like heat absorption working medium cavity 1 that the thermal-arrest plate is made by transparent plastic is full of black heat absorption working medium in the heat absorption working medium cavity, is added with between transparent plastic sheet and the heat absorption working medium cavity at sunny slope and forms air or vacuum transparent heat insulating layer 2 (cavity).
As Fig. 2,3, the board-like heat absorption working medium cavity of being made by transparent plastic 1 is grid 3 shape tanks, be full of heat absorption working medium in the tank, be added with formation air or vacuum transparent heat insulating layer 2 (cavity) between transparent plastic sheet and the heat absorption working medium cavity 1 at sunny slope, be disposed with air or vacuum insulation cavity 5 and insulation material layer 6 at shady face.
As Fig. 4, the board-like heat absorption working medium cavity of being made by transparent plastic 1 is grid 3 shape tanks, be full of heat absorption working medium in the tank, be added with formation air or vacuum transparent heat insulating layer 2 (cavity) between transparent plastic sheet and the heat absorption working medium cavity 1 at sunny slope, be disposed with heat-exchange working medium cavity 7 and insulation material layer 6 at shady face.Be full of heat-exchange working medium in the heat-exchange working medium cavity.
The thermal-arrest plate of the frame mode shown in Fig. 1～4 all can constitute closed circuit with heat exchanger.Its specific implementation is grasped by those skilled in the art.
As Fig. 5, for thermal-arrest plate (can be version shown in Fig. 1～4) two ends connect the version of pipeline respectively.The two ends of thermal-arrest plate 12 connected lower communicating tube 9 and last communicating pipe 8 respectively, and lower communicating tube and last communicating pipe and heat exchanger 11 constitute closed circuit, are added with tubing pump 10 on closed circuit.The thermal-arrest plate adopts different version to be connected with heat exchanger according to mode of the present invention.
The present invention can form collecting system, and the series connection of a plurality of thermal-arrest plates is or/and in parallel formation, and the concrete connected mode of itself and heat exchanger can be that those of ordinary skills grasp.The present invention simultaneously also can be provided with safe handling measures such as expansion tank.
The invention provides a kind of prescription of the working medium of absorbing heat: in mass percent, 1500 order carbon blacks 4%, ethylene glycol 40%, water 55%, nano phase ag_2 o 0.5% and xanthans 0.5%.It also can be other black light-absorbing heat-conducting liquid.
Claims (10)
1. a transparent plastic solar heat collection device comprises the thermal-arrest plate, it is characterized in that described thermal-arrest plate comprises the heat absorption working medium cavity of being made by transparent plastic, is full of black heat absorption working medium in the heat absorption working medium cavity, and thermal-arrest plate and heat exchanger form closed circuit.
2. solar energy heat collector according to claim 1, the two ends that it is characterized in that described heat absorption working medium cavity connected lower communicating tube and last communicating pipe respectively, lower communicating tube and last communicating pipe and heat exchanger constitute closed circuit, are full of black heat absorption working medium in heat absorption working medium cavity and the closed circuit.
3. solar energy heat collector according to claim 1, the upper end that it is characterized in that described heat absorption working medium cavity is connected with storage tank, heat exchanger is that heat exchanger tube is arranged in the storage tank, the lower end of heat absorption working medium cavity connects lower communicating tube, lower communicating tube and storage tank and heat exchanger constitute closed circuit, are full of black heat absorption working medium in heat absorption working medium cavity and the closed circuit.
4. solar energy heat collector according to claim 1 is characterized in that described thermal-arrest plate also comprises the heat-exchange working medium cavity, and the back side of heat absorption working medium cavity is provided with the heat-exchange working medium cavity, and heat-exchange working medium in the heat-exchange working medium cavity and heat exchanger form closed circuit.
5. solar energy heat collector according to claim 1 is characterized in that described heat absorption working medium cavity is the tank of band raster.
6. solar energy heat collector according to claim 1 is characterized in that the sunny slope of described heat absorption working medium cavity is added with air or vacuum transparent heat insulating layer.
7. solar energy heat collector according to claim 1, the back side of the working medium cavity that it is characterized in that absorbing heat are added with heat-reflecting layer or adiabatic cavity or/and heat insulation layer.
8. solar energy heat collector according to claim 1 is characterized in that by a plurality of thermal-arrest plate series connection or/and the collecting system that forms in parallel.
9. according to the described solar energy heat collector of one of claim 1-8, it is characterized in that described heat absorption working medium cavity is a plate armature.
10. solar energy heat collector according to claim 1 is characterized in that being added with pump on the described closed circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100160014A CN101907361A (en) | 2009-06-03 | 2009-06-03 | Transparent plastic solar heat collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100160014A CN101907361A (en) | 2009-06-03 | 2009-06-03 | Transparent plastic solar heat collection device |
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|---|---|
| CN101907361A true CN101907361A (en) | 2010-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100160014A Pending CN101907361A (en) | 2009-06-03 | 2009-06-03 | Transparent plastic solar heat collection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962241A (en) * | 2015-05-20 | 2015-10-07 | 哈尔滨亿龙天成电采暖工程有限公司 | Phase-change material, and electric heating phase change thermal storage device employing phase-change material |
| CN105209833A (en) * | 2013-03-13 | 2015-12-30 | 赫利厄斯产品有限责任公司 | Translucent plastic solar thermal collector |
| CN105241085A (en) * | 2015-11-12 | 2016-01-13 | 北京华富可热力技术有限公司 | Solar heat exchanger system |
-
2009
- 2009-06-03 CN CN2009100160014A patent/CN101907361A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105209833A (en) * | 2013-03-13 | 2015-12-30 | 赫利厄斯产品有限责任公司 | Translucent plastic solar thermal collector |
| US9915444B2 (en) | 2013-03-13 | 2018-03-13 | Helios Products, Llc | Translucent plastic solar thermal collector |
| CN104962241A (en) * | 2015-05-20 | 2015-10-07 | 哈尔滨亿龙天成电采暖工程有限公司 | Phase-change material, and electric heating phase change thermal storage device employing phase-change material |
| CN105241085A (en) * | 2015-11-12 | 2016-01-13 | 北京华富可热力技术有限公司 | Solar heat exchanger system |
| CN105241085B (en) * | 2015-11-12 | 2017-05-31 | 中首能能源投资（北京）有限公司 | A kind of solar heat-exchange system |
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Application publication date: 20101208 |