CN104654625A - Flat plate solar water heater without water tank based on light condensation and phase-change heat storage - Google Patents
Flat plate solar water heater without water tank based on light condensation and phase-change heat storage Download PDFInfo
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- CN104654625A CN104654625A CN201310588721.4A CN201310588721A CN104654625A CN 104654625 A CN104654625 A CN 104654625A CN 201310588721 A CN201310588721 A CN 201310588721A CN 104654625 A CN104654625 A CN 104654625A
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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
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Abstract
The invention discloses a flat plate solar water heater without a water tank based on light condensation and phase-change heat storage, relates to phase-change material heat storage and solar light heat application technology and in particular to an efficient flat plate solar water tank without the water tank. The flat plate solar water heater without the water tank mainly comprises a vacuum transparent light-condensing cover plate, a T-shaped heat-absorbing heat-conducting part, selective heat-absorbing paint, a phase-change heat storage material, a liquid storage device, a side frame, a thermal insulation material, a heat insulating cavity and the like. The flat plate solar water heater is characterized in that the vacuum transparent light-condensing cover plate and the T-shaped heat-absorbing heat-conducting part form a heat collecting part, wherein the liquid storage device, the phase-change heat storage material and a heat exchange copper tube form a heat storage part; the heat collecting part and the heat storage part are organically combined into an integer. Compared with a conventional solar water heater, the phase-change heat storage material replaces a conventional heat storage water tank, the heat collection and the heat storage are integrated, so that the water heater is relatively small in size and relatively suitable for building integral application; meanwhile, the light-condensing and vacuum heat-insulating technology is adopted, so that the heat collecting efficiency and the thermal insulation are greatly improved.
Description
Technical field
Patent of the present invention relates to phase-change material heat accumulation and solar energy optical-thermal application technology, is related specifically to a kind of high-efficient flat-plate solar water heater, belongs to solar energy optical-thermal applied technical field.
Background technology
Solar energy is as clean energy resource, inexhaustible, is one of important alternative energy source of traditional energy.Solar energy optical-thermal is applied because its solar energy utilization ratio is high, and realizing simple, is one of important method of Solar use.Conventional solar boilers mainly comprises solar thermal collector, water pump, pipeline and heat storage water tank, and its heat accumulating is often water, and because water is sensible heat storage power, energy storage density is low, often needs the heat storage water tank that larger.Due to improving constantly of modern study level, phase-change heat-storage material research has had very large breakthrough, many phase-change heat-storage materials have been had to be applied on solar energy, phase-change heat-storage material due to its energy storage density high, volume needed for storage unit energy is often 1/10th of sensible heat energy storage material, even lower, therefore adopt phase-change heat-storage material to replace water, greatly can reduce the volume of a container filling heat accumulating.Flat plate collector and vacuum tube collector are as most widely used solar thermal collector.Vacuum tube collector is due to himself good heat insulating, can directly heat accumulating be placed in vacuum tubes, but flat plate collector due to its collector area large, front poor thermal insulation property, heat accumulating is often difficult to directly and heat collector combines together, and therefore flat plate collector water heater often needs an external larger heat-storing device.
Summary of the invention
For above-mentioned prior art Problems existing, the object of the invention is to research and develop the component that a kind of flat panel solar heat collecting and heat accumulation integrally combine, improve heat-insulating property and the collecting efficiency of flat plate collector, remove the heat storage water tank of conventional solar boilers.
Technical scheme of the present invention is: based on the cistern free flat plate solar water heater of optically focused and phase-change thermal storage primarily of vacuum transparent optically focused cover plate, T-shaped heat absorption conductive part, selective absorbing coating, phase-change heat-storage material, device for storing liquid, heat exchange copper tube, frame, profile, back of the body insulation material, side insulation material, positive insulation material, the formations such as insulated cavity, be primarily characterized in that: vacuum transparent optically focused cover plate and T-shaped heat absorption conductive part composition collecting part, device for storing liquid, phase-change heat-storage material and heat exchange copper tube composition heat accumulating portion, heat collector part and heat accumulating portion are organically combined as a whole.
1. vacuum transparent optically focused cover plate is double layer hollow structure, is made up of clear glass and Fresnel linear concentrator lens, forms hollow state in the middle of both.
2. the Fresnel linear concentrator lens described in are made up of the Fresnel light condensing lens that multiple focal length is identical, and each Fresnel light condensing lens can will gather the parallel light focusing on its surface on a line.
3. T-shaped heat absorption conductive part upper end face scribbles selective heat-absorbing paint, and lower end is connected with device for storing liquid.
4. the thickness of insulated cavity equals the focal length of Fresnel light condensing lens.
5. solid-liquid phase-change heat-storage material is placed in device for storing liquid.
6. heat exchange copper tube is placed in device for storing liquid inside, directly contacts with phase-change heat-storage material.
The present invention is compared with conventional solar boilers, and phase-change heat-storage material instead of traditional heat storage water tank, and heat-collecting heat-storage integration, makes water heater volume smaller and more exquisite, is more suitable for architecture-integral application; Adopt optically focused and vacuum heat-insulation technology simultaneously, substantially increase collecting efficiency and heat-insulating property.
Accompanying drawing explanation
Fig. 1: the cross section structure schematic diagram of patent of the present invention;
Fig. 2: the planar structure schematic diagram of patent of the present invention;
Fig. 3: the device for storing liquid cross-sectional view of patent of the present invention;
Fig. 4: the Fresnel linear concentrator lens arrangement schematic diagram of patent of the present invention;
Fig. 5: patent copper pipe component structure schematic diagram of the present invention.
1 be phase-change heat-storage material, 2 be heat exchange copper tube, 3 be device for storing liquid, 4 be positive insulation material, 5 be insulated cavity, 6 be T-shaped heat absorption conductive part, 7 be vacuum transparent optically focused cover plate, 8 be Fresnel linear concentrator lens, 9 be vacuum chamber, 10 be clear glass, 11 be selective absorbing coating, 12 be profile, 13 be frame, 14 be side insulation material, 15 be water inlet, 16 for back of the body insulation material, 17 is for delivery port.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
The present invention is in reality is implemented, as shown in Figure 1, the present invention is formed primarily of phase-change heat-storage material 1, heat exchange copper tube 2, device for storing liquid 3, positive insulation material 4, insulated cavity 5, T-shaped heat absorption conductive part 6, vacuum transparent optically focused cover plate 7, Fresnel linear concentrator lens 8, vacuum chamber 9, clear glass 10, selective absorbing coating 11, profile 12, frame 13, side insulation material 14, back of the body insulation material 16.Vacuum transparent optically focused cover plate 7 is made up of clear glass 10 and Fresnel linear concentrator lens 8, is pasted together by high strength high-air-tightness compound binding agent, and centre is vacuum chamber 9.Fresnel linear concentrator lens 8 are made up of the Fresnel light condensing lens that focal length is identical as shown in Figure 4, adopt PMMA(polymethyl methacrylate) and PVC(polyvinyl chloride) etc. material manufacture; Device for storing liquid 3 is that phase-change heat-storage material 1 adopts fusing point at the material of 80 DEG C ~ 100 DEG C, is placed among device for storing liquid 3 by having anticorrosion and stainless steel material welding production that is high thermal conductivity as shown in Figure 3; T-shaped heat absorption conductive part 6 adopts aluminium to make, and the selective absorbing coating 11 of upper end figure, lower end is welded with device for storing liquid 3.Frame 13 and profile 12 all adopt aluminium to make; Heat exchange copper tube 2 as shown in Figure 5 bends to snakelike to increase heat exchange efficiency.
As shown in Figure 1, first aluminium type material is utilized to assemble frame 13, back of the body insulation material 16 is placed in frame 13, put side insulation material 14 again, the device for storing liquid 3 being placed with phase-change heat-storage material 1 and heat exchange copper tube 2 is placed on back of the body insulation, then place positive insulation material 4, cover vacuum transparent optically focused cover plate 7 on frame 13, finally buckle profile 12.
Solar energy optical-thermal application implementation procedure of the present invention is, solar irradiation is mapped on vacuum transparent optically focused cover plate 7, Fresnel linear concentrator lens 8 by solar light focusing on T-shaped heat absorption conductive part 6, heat is delivered in the phase-change heat-storage material 1 of device for storing liquid 3 and stores by T-shaped heat absorption conductive part 6, the extraneous water used from heat-conducting copper pipe import 15 flow into heat exchange copper tube 2 with phase-change heat-storage material 1 heat exchange, flow out from heat-conducting copper pipe outlet 17.
Technical scheme of the present invention is not limited to above-described embodiment; in the ken that those of ordinary skill in the art possess; various change can also be made under the prerequisite not departing from present inventive concept; all distortion of directly deriving from content disclosed by the invention or associating, all should think protection scope of the present invention.
Claims (7)
1. based on the cistern free flat plate solar water heater of optically focused and phase-change thermal storage primarily of vacuum transparent optically focused cover plate, T-shaped heat absorption conductive part, selective heat-absorbing paint, phase-change heat-storage material, device for storing liquid, heat exchange copper tube, frame, profile, back of the body insulation material, side insulation material, the positive formation such as insulation material, insulated cavity, be primarily characterized in that: vacuum transparent optically focused cover plate and T-shaped heat absorption conductive part composition collecting part, device for storing liquid, phase-change heat-storage material and heat exchange copper tube composition heat accumulating portion, heat collector part and heat accumulating portion are organically combined as a whole.
2. as claimed in claim 1 based on the cistern free flat plate solar water heater of optically focused and phase-change thermal storage, it is characterized in that vacuum transparent optically focused cover plate is double layer hollow structure, be made up of clear glass and Fresnel linear concentrator lens, in the middle of both, form hollow state.
3. as claimed in claim 1 based on the cistern free flat plate solar water heater of optically focused and phase-change thermal storage, it is characterized in that described Fresnel linear concentrator lens are made up of the Fresnel light condensing lens that multiple focal length is identical, each Fresnel light condensing lens can will gather the parallel light focusing on its surface on a line.
4., as claimed in claim 1 based on the cistern free flat plate solar water heater of optically focused and phase-change thermal storage, it is characterized in that described T-shaped heat absorption conductive part upper end face scribbles selective heat-absorbing paint, lower end is connected with device for storing liquid.
5., as claimed in claim 1 based on the cistern free flat plate solar water heater of optically focused and phase-change thermal storage, it is characterized in that the thickness of described insulated cavity equals the focal length of Fresnel light condensing lens.
6., as claimed in claim 1 based on the cistern free flat plate solar water heater of optically focused and phase-change thermal storage, it is characterized in that solid-liquid phase-change heat-storage material is placed in device for storing liquid.
7., as claimed in claim 1 based on the cistern free plate solar water heater of optically focused and phase-change thermal storage, it is characterized in that described heat exchange copper tube is placed in device for storing liquid inside, directly contact with phase-change heat-storage material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310588721.4A CN104654625A (en) | 2013-11-21 | 2013-11-21 | Flat plate solar water heater without water tank based on light condensation and phase-change heat storage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310588721.4A CN104654625A (en) | 2013-11-21 | 2013-11-21 | Flat plate solar water heater without water tank based on light condensation and phase-change heat storage |
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| CN104654625A true CN104654625A (en) | 2015-05-27 |
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| CN201310588721.4A Pending CN104654625A (en) | 2013-11-21 | 2013-11-21 | Flat plate solar water heater without water tank based on light condensation and phase-change heat storage |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444238A (en) * | 2018-06-06 | 2018-08-24 | 贵州大学 | A kind of heat-storing device for drier |
| CN108895677A (en) * | 2018-08-13 | 2018-11-27 | 山东小鸭新能源科技有限公司 | Phase-change heat collection and energy storage integrated solar water heater |
| CN108895774A (en) * | 2018-06-06 | 2018-11-27 | 贵州大学 | A kind of photoelectric heat coupled solar drier with heat storage function |
| CN112728782A (en) * | 2021-01-05 | 2021-04-30 | 深圳大学 | Split type heat collector |
| CN114963592A (en) * | 2022-04-13 | 2022-08-30 | 西安交通大学 | Solar photo-thermal conversion and heat storage system based on composite phase-change material |
| CN115493131A (en) * | 2022-09-22 | 2022-12-20 | 西藏尚阳能源股份有限公司 | Flat-plate type medium-high temperature solar steam device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444238A (en) * | 2018-06-06 | 2018-08-24 | 贵州大学 | A kind of heat-storing device for drier |
| CN108895774A (en) * | 2018-06-06 | 2018-11-27 | 贵州大学 | A kind of photoelectric heat coupled solar drier with heat storage function |
| CN108895677A (en) * | 2018-08-13 | 2018-11-27 | 山东小鸭新能源科技有限公司 | Phase-change heat collection and energy storage integrated solar water heater |
| CN112728782A (en) * | 2021-01-05 | 2021-04-30 | 深圳大学 | Split type heat collector |
| CN114963592A (en) * | 2022-04-13 | 2022-08-30 | 西安交通大学 | Solar photo-thermal conversion and heat storage system based on composite phase-change material |
| CN115493131A (en) * | 2022-09-22 | 2022-12-20 | 西藏尚阳能源股份有限公司 | Flat-plate type medium-high temperature solar steam device |
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Application publication date: 20150527 |
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