CN104534687A - Solar heat absorber with extending pipe bundle - Google Patents
Solar heat absorber with extending pipe bundle Download PDFInfo
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- CN104534687A CN104534687A CN201410830833.0A CN201410830833A CN104534687A CN 104534687 A CN104534687 A CN 104534687A CN 201410830833 A CN201410830833 A CN 201410830833A CN 104534687 A CN104534687 A CN 104534687A
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- absorber
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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 discloses a solar heat absorber with an extending pipe bundle. The solar heat absorber comprises a cavity, wherein the cavity comprises a shell with a working medium outlet, one end of the shell is connected with a heat absorption wall, a working medium inlet is formed in the joint of the edge of the heat absorption wall and the shell, the wall surface of the heat absorption wall is in an arc shape, a plurality of inwards-concave extending pipelines are arranged on the wall surface in an annular array mode, and the include angle between the central axis of each extending pipeline on the edge of the heat absorption wall and the central symmetry axis of the wall absorption wall ranges from 40 degrees to 50 degrees. The extending pipelines are hollow pipelines with the wall faces of the self-heat-absorption walls integrally extending inwards. The bottoms of the hollow pipelines are closed. The extending pipelines are arranged on the wall face of the heat absorption wall in a radial shape to form the extending pipe bundle. By means of the solar heat absorber, the heat exchange area of working media is enlarged, the flowing disturbance of the working media is increased, the heat exchange performance of the working media can be effectively improved, and therefore the thermal efficiency of the heat absorber is improved; the effective radiation heat dissipation temperature of the heat absorption wall face can be further lowered, and the thermal efficiency of the heat absorber is improved.
Description
Technical field
The present invention relates to application of solar, specifically, the present invention relates to a kind of solar heat absorber with tube bank of extending.
Background technology
Solar energy is a kind of abundant clean energy resource.Develop solar energy resources to energy-saving and emission-reduction, improve the ecological environment very important.Solar heat absorber converts gathering sunshine to high temperature heat source, and heating working medium acting or driving chemical reaction are the core devices of solar energy high temperature hot-cast socket system.According to can practical function different, the solar heat absorber scheme proposed at present has a lot.
On State Intellectual Property Office of the People's Republic of China website, find patent related to the present invention 7, specifying information is as follows:
(1) title: a kind of bottom surface convex circular cylindrical cavity formula solar heat absorber
Application number: 201110233330.1
Inventor: Wang Fuqiang; General forever; Yuan Yuan; Liu Bin; Talk peace
Summary: a kind of bottom surface convex circular cylindrical cavity formula solar heat absorber, the present invention relates to a kind of solar heat absorber.The present invention is difficult to be covered with bottom surface in order to the metal tube solving circular cylindrical cavity formula heat dump bottom surface place, there is the problem in heat sink solar radiation hot-fluid dead band.The bottom surface of heat dump housing of the present invention is inner convexed structure, the bottom surface of heat dump housing is V-shape structure, heat dump lateral parts coil winding is in heat dump housing side inner walls, heat dump bottom surface internal projection section coil winding is on the bottom surface of heat dump housing, the entrance point of heat dump lateral parts coil pipe is communicated with the port of export of heat dump bottom surface internal projection section coil pipe, the outer surface of heat dump housing is provided with mineral wool heat-insulation layer, working medium exit port pipe is located in mineral wool heat-insulation layer, and be communicated with the port of export of heat dump lateral parts coil pipe, working media inlet tube is located in mineral wool heat-insulation layer, and be communicated with the entrance point of heat dump bottom surface internal projection section coil pipe.The present invention is for absorbing solar energy.
(2) title: a kind of focussing groove type solar thermal absorber of single side multi-longitudinal whorl strengthened heat exchange
Application number: 200810231652.0
Inventor: He Yaling; Cheng Zedong; Inscription on pottery select; Tao Yubing; Xiao Jie
Summary: a kind of focussing groove type solar thermal absorber of single side multi-longitudinal whorl strengthened heat exchange, comprises outer glass tube and receives interior pipe by the stainless steel that connecting end portion is encapsulated in outer glass tube, define vacuum chamber in outer glass tube and stainless steel receive between pipe; Stainless steel receive in pipe outer wall on be coated with selective absorbing sunshine coating, and stainless steel reception inner pipe wall one-sided, i.e. collectiong focusing solar energy hot-fluid side, is provided with to pipe internal projection or recessed discontinuous many long direction eddy generators.The present invention is only provided with discontinuous many long direction eddy generators for the one-sided of collectiong focusing solar energy hot-fluid side (its thermograde is very large), in this side pipe, nearly wall place defines longitudinal Vortex fluidal texture, improve velocity field and heat flow field works in coordination with degree, enhance tube fluid heat convection.Meanwhile, when increasing same stream dynamic resistance, its enhanced heat exchange effect is comparatively arranged in thermograde smaller side and will gets well, and single-sided arrangement can reach the enhanced heat exchange effect of efficient low-resistance and energy-saving and cost-reducing object.
(3) title: containing the spherical cavate solar heat absorber of indent cloche
Application number: 201110255144.8
Inventor: Long Xinfeng; Hair pine
Summary: the invention discloses the spherical cavate solar heat absorber containing indent cloche, be mainly used in collecting sunshine and convert it into heat energy in butterfly solar energy high temperature heat utilization system.Heat dump is primarily of heat exchange coil, concave cloche, shell, inner casing, vacuum layer, reflecting type deep bead, heat-conducting fluid composition.Different from the cavity type heat absorber of traditional open type and accent band windowpane, this cavity type heat absorber is the spherical heat dump of open type adopting indent cloche, both there is the ability that open type cavity type heat absorber catches light, there is again the feature of the cavity type heat absorber low-loss of accent band windowpane.This cavity type heat absorber has reflecting type deep bead simultaneously, can strengthen the seizure to stray light, reduces the naturally wind-induced convection heat transfer' heat-transfer by convection loss of inner surface heat radiation and outside.Containing vacuum layer between the inside and outside shell of this cavity type heat absorber, the heat of housing loss effectively can be decreased through.
(4) title: cylinder and conical composite cavity type solar heat absorber
Application number: 201210056836.4
Inventor: Wang Fuqiang; Talk peace; Zhang Xusheng; Easy glow; General forever; Yuan Yuan
Summary: cylinder and conical composite cavity type solar heat absorber, the present invention relates to a kind of solar heat absorber.The present invention is difficult to be covered with bottom surface in order to the metal tube solving circular cylindrical cavity formula solar heat absorber bottom surface place, there is the problem in heat sink solar radiation hot-fluid dead band.The inner chamber of heat dump housing is cylinder and conical composite cavity, heat dump lateral parts coil winding is on cylindrical housings inwall, heat dump bottom surface conical section coil winding is on conical shell inwall, the entrance point of heat dump lateral parts coil pipe is communicated with the port of export of heat dump bottom surface conical section coil pipe, the outer surface of heat dump housing is provided with mineral wool heat-insulation layer, working medium exit port pipe is located in mineral wool heat-insulation layer, and working medium exit port pipe is communicated with the port of export of heat dump lateral parts coil pipe, working media inlet tube is located in mineral wool heat-insulation layer, and working media inlet tube is communicated with the entrance point of heat dump bottom surface conical section coil pipe.
(5) title: a kind of high-efficiency solar heat dump absorbing cone configuration based on photo-thermal
Application number: 201310041996.6
Inventor: Huang Guoping; Flood is established; Xia Chen; Fu Xin; Kang Jianxiong
Summary: the present invention relates to a kind of solar heat absorber absorbing cone configuration based on photo-thermal, comprise seal cover, pipe box, airflow line, absorber, cloche and absorber securing member, it is characterized in that absorber is prismoid shaped structure, each plane can separately manufacture; Each plane is photo-thermal and absorbs cone-plate, and surface distributed, by multiple sharp-pointed pyramid, is made up of high heat conduction porosity and looseness material; Cloche is truncated cone-shaped; Described seal cover, absorber, cloche form enclosed cavity volume, and air enters cavity volume by the air admission hole of seal cover, then are taken away solar energy through porous media photo-thermal absorption cone-plate by heating, and are finally flowed out along airflow line by the heat dump port of export.Advantage: problems such as improving existing heat dump and have that heat absorption efficiency is low, processing difficulties, internal flow loss are large.Can be used alone, also combinationally use mutually by interface; Mainly be applicable to solar heat power conversion system, guarantee that it can Effec-tive Function.
(6) title: snakelike bellows-type solar heat absorber
Application number: 201220412104.X
Inventor: Zhang Guoshou; Wu Liping; Shi Fujiang
Summary: the utility model relates to a kind of solar heat absorber, particularly a kind of snakelike bellows-type solar heat absorber, and described heat dump comprises endothermic tube, and this endothermic tube is assembled into entirety by support or plate case; Described endothermic tube comprises the many glass-vacuum tubes be installed in parallel, described glass-vacuum tube is managed built with in wavy metal, in described wavy metal, pipe bends to snakelike by single piece of metal bellows, load each described glass-vacuum tube successively, in described wavy metal, the detachable fitting of pipe two ends is connected with hot water return pipe with hot water outlet pipe respectively.The utility model heat dump adopts decomposable asymmetric choice net framework, is removablely split into parts warehousing, packaging, transport and maintenance; And suitably can increase and decrease snakelike wavy metal length of tube, adapt to the strong and weak demand of the user location sun; Snakelike metal bellows has larger endotherm area, and by multistage and repeatedly circulation heat absorption, hot water temperature is high; Removable cleaning blowdown, can effectively prevent booster in winter, be conducive to realizing apparatus for heating water by solar energy integrated with building.
(7) title: a kind of bottom surface is the hemispheroidal cavity type solar heat absorber of curved surface
Application number: 201220612985.X
Inventor: Wang Fuqiang; Lin Yi; Li Xia Yun; Wei Donglan; Zhang Hui; Qin Aimin; Meng Fanjun; Liu Juanjuan; First holt
Summary: a kind of bottom surface is the hemispheroidal cavity type solar heat absorber of curved surface, and the utility model relates to a kind of solar heat absorber.The utility model cannot be covered with the problem of whole bottom surface in metal tube coiling process in order to solve, and heat dump exists the problem of optical loss.The bottom of heat dump housing is curved surface hemisphere, heat dump side section spiral coil is wrapped in the side inner walls of heat dump housing, heat dump bottom surface section spiral coil is wrapped on the bottom surface of heat dump housing, heat dump side section spiral coil is communicated with heat dump bottom surface section spiral coil, the outer surface of heat dump housing is provided with silica wool heat-insulation layer, working media inlet tube is located in silica wool heat-insulation layer, and working media inlet tube is communicated with the entrance point of heat dump side section spiral coil, working medium exit port pipe is located in silica wool heat-insulation layer, and working medium exit port pipe is communicated with the port of export of heat dump side section spiral coil.
Gathering solar energy is converted to the acting of high temperature heat source heating working medium or carries out chemical reaction by solar heat absorber, is one of the core devices of solar dynamic power system, solar energy high temperature thermal chemical reaction.According to the difference of solar energy optical-thermal conversion regime, solar heat absorber is divided into surface-type heat dump and positive displacement heat dump two class.Surface-type heat dump is also tubular type heat dump, as coil pipe heat dump, squirrel-cage heat dump.Be characterized in that structure is simple, operational reliability is good, but heat exchange property is poor, the thermal efficiency is low.Positive displacement heat dump is made up of quartz glass and porous ceramics or metal heat exchanger core, and gathering sun light beam enters porous heat exchanger core through glass and completed photothermal deformation by absorption.Positive displacement heat dump structure is light, heat absorption efficiency is high, but due to crisp, the easy high temperature devitrification of quartz glass matter, constrains the reliability of positive displacement heat dump.
Summary of the invention
The object of the invention is to the deficiency for current solar heat absorber structure, propose that a kind of photo-thermal conversion efficiency is high, the solar heat absorber with tube bank of extending of good reliability.
Technical scheme provided by the invention is: a kind of solar heat absorber with tube bank of extending, comprise a cavity, cavity comprises the housing that has sender property outlet, shell one end is connected with heat absorption wall, edge and the housing junction of heat absorption wall are provided with working medium entrance, the wall of described heat absorption wall is arc, and on wall, annular array is provided with the extension pipeline of some indents, the extension pipeline center axle at heat absorption mural margin place and angle theta=40 of heat absorption wall central symmetry axis ° ~ and 50 °; Extension pipeline is the hollow pipe that the wall of self-priming hot wall inwardly integrally extends, and the bottom of hollow pipe is bottom lock; Some extension pipelines are radially arranged on the wall of heat absorption wall, form tube bank of extending.
Wherein, extension pipe diameter is d, and length is l, and between pipe, spacing is b, d=2 ~ 3cm, l=10 ~ 20d, b=2 ~ 3d.
Described hull outside is coated with heat-insulation layer.
Beneficial effect of the present invention is:
Compared with prior art, the present invention mainly contains following two advantages:
(1) compared with conventional tubular heat dump, the tube bank heat dump that extends extends and the hollow beam of some on heat absorption wall, add heat exchange area and the flow disturbance of working medium, effectively can improve the heat exchange property of working medium, thus improve the thermal efficiency of heat dump;
(2) extend tube bank bottom lock, extension end opening, assemble solar energy enter extend pipe and absorbed at lower tube wall, high-temperature region at bottom tube wall, due to cavity effect, the Net long wave radiation exothermic temperature of heat absorption wall can be reduce further, improve the thermal efficiency of heat dump.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by referring to detailed description below, more completely can understand the present invention better and easily learn wherein many adjoint advantages, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention, wherein:
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
With reference to figure 1, a kind of solar heat absorber with tube bank of extending of the present invention, comprise a cavity, cavity comprises the housing 2 that has sender property outlet 1, housing 2 outer side covers has heat-insulation layer 3, shell, 2 one end are connected with heat absorption wall 4, edge and housing 2 junction of heat absorption wall 4 are provided with working medium entrance 5, the wall of heat absorption wall 4 is arc, on wall, annular array is provided with the extension pipeline 6 of some indents, the extension pipeline center axle of heat absorption wall 4 edge and angle theta=40 of heat absorption wall 4 central symmetry axis ° ~ and 50 °; Some extension pipelines 6 are radially arranged on the wall of heat absorption wall 4, form tube bank of extending.
Extension pipeline 6 is the hollow pipe that the wall of self-priming hot wall 4 inwardly integrally extends, and the bottom of hollow pipe is bottom lock, and wherein, extension pipe diameter is d, and length is l, and between pipe, spacing is b, d=2 ~ 3cm, l=10 ~ 20d, b=2 ~ 3d.
When gathering solar irradiation is mapped to heat dump of the present invention, part sunshine is absorbed by the wall of the wall 4 that absorbs heat, and part sun light beam enters extension pipeline from the openend of extension pipeline 6, is absorbed by bottom tube wall, forms solar energy positive displacement and absorbs.
Working medium enters heat dump from working medium entrance 5, flows through between extension pipeline 6, with extension pipeline 6, violent forced-convection heat transfer occurs, and takes away the gathering solar energy that extension pipeline 6 absorbs, and completes the photothermal deformation assembling solar energy.At the back of housing 2, covering and heat insulating layer 3, reduces the radiation loss of heat dump.
The explanation of above example just understands core concept of the present invention for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (2)
1. one kind has the solar heat absorber of tube bank of extending, comprise a cavity, cavity comprises the housing that has sender property outlet, shell one end is connected with heat absorption wall, edge and the housing junction of heat absorption wall are provided with working medium entrance, and it is characterized in that, the wall of described heat absorption wall is arc, on wall, annular array is provided with the extension pipeline of some indents, the extension pipeline center axle at heat absorption mural margin place and angle theta=40 of heat absorption wall central symmetry axis ° ~ and 50 °; Extension pipeline is the hollow pipe that the wall of self-priming hot wall inwardly integrally extends, the bottom of hollow pipe is bottom lock, some extension pipelines are radially arranged on the wall of heat absorption wall, form tube bank of extending, wherein, extension pipe diameter is d, length is l, and between pipe, spacing is b, d=2 ~ 3cm, l=10 ~ 20d, b=2 ~ 3d.
2. a kind of solar heat absorber with tube bank of extending according to claim 1, it is characterized in that, described hull outside is coated with heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410830833.0A CN104534687B (en) | 2014-12-26 | 2014-12-26 | A kind of solar heat absorber with tube bank of extending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410830833.0A CN104534687B (en) | 2014-12-26 | 2014-12-26 | A kind of solar heat absorber with tube bank of extending |
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| Publication Number | Publication Date |
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| CN104534687A true CN104534687A (en) | 2015-04-22 |
| CN104534687B CN104534687B (en) | 2019-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410830833.0A Expired - Fee Related CN104534687B (en) | 2014-12-26 | 2014-12-26 | A kind of solar heat absorber with tube bank of extending |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526716A (en) * | 2016-01-04 | 2016-04-27 | 中国华能集团清洁能源技术研究院有限公司 | Solar heat absorber capable of carrying out photo-thermal conversion in closed chamber |
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| CN101307956A (en) * | 2008-06-24 | 2008-11-19 | 中国科学院电工研究所 | Solar energy electricity power station bearing type air thermal absorber |
| CN101762079A (en) * | 2010-02-04 | 2010-06-30 | 益科博能源科技（上海）有限公司 | Linear Fresnel solar heat collector |
| CN101788199A (en) * | 2010-03-24 | 2010-07-28 | 益科博能源科技（上海）有限公司 | Solar receiver |
| CN102322694A (en) * | 2011-08-31 | 2012-01-18 | 华南理工大学 | Spherical cavity type solar heat absorber with inwardly concave glass cover |
| CN103392100A (en) * | 2010-12-06 | 2013-11-13 | 阿尔斯通技术有限公司 | Improved solar receiver |
| WO2013177951A1 (en) * | 2012-05-31 | 2013-12-05 | 北京兆阳能源技术有限公司 | Solar photo-thermal receiving device |
| CN204388382U (en) * | 2014-12-26 | 2015-06-10 | 福建工程学院 | A kind of solar heat absorber with tube bank of extending |
-
2014
- 2014-12-26 CN CN201410830833.0A patent/CN104534687B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307956A (en) * | 2008-06-24 | 2008-11-19 | 中国科学院电工研究所 | Solar energy electricity power station bearing type air thermal absorber |
| CN101762079A (en) * | 2010-02-04 | 2010-06-30 | 益科博能源科技（上海）有限公司 | Linear Fresnel solar heat collector |
| CN101788199A (en) * | 2010-03-24 | 2010-07-28 | 益科博能源科技（上海）有限公司 | Solar receiver |
| CN103392100A (en) * | 2010-12-06 | 2013-11-13 | 阿尔斯通技术有限公司 | Improved solar receiver |
| CN102322694A (en) * | 2011-08-31 | 2012-01-18 | 华南理工大学 | Spherical cavity type solar heat absorber with inwardly concave glass cover |
| WO2013177951A1 (en) * | 2012-05-31 | 2013-12-05 | 北京兆阳能源技术有限公司 | Solar photo-thermal receiving device |
| CN204388382U (en) * | 2014-12-26 | 2015-06-10 | 福建工程学院 | A kind of solar heat absorber with tube bank of extending |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526716A (en) * | 2016-01-04 | 2016-04-27 | 中国华能集团清洁能源技术研究院有限公司 | Solar heat absorber capable of carrying out photo-thermal conversion in closed chamber |
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| CN104534687B (en) | 2019-02-05 |
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Granted publication date: 20190205 Termination date: 20211226 |