CN1361396A - Central solar energy acceptor - Google Patents
Central solar energy acceptor Download PDFInfo
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- CN1361396A CN1361396A CN00137098A CN00137098A CN1361396A CN 1361396 A CN1361396 A CN 1361396A CN 00137098 A CN00137098 A CN 00137098A CN 00137098 A CN00137098 A CN 00137098A CN 1361396 A CN1361396 A CN 1361396A
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- window
- solar energy
- energy acceptor
- shell
- central solar
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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 central solar energy acceptor includes one axisymmetric casing with one hole in the front end, one slender tubular window installed coaxially with the casing in the hole, one positive-displacement solar energy absorber around and beyond the slender window to absorb the energy of the sun ray penetrating therein, and working fluid inlet and oulet for fluid to spray into and to flow out off the positive-displacement absorber. The said window has one front end installed in the front end of the casing and one enclosed back end near the back end of the casing.
Description
The present invention relates to a kind of central solar energy acceptor, relate in particular to and a kind ofly be used in a kind of like this recipient, be used to the window that makes concentrated solar energy ray enter and pass through.
The present invention is specifically at a kind of central solar energy acceptor, comprise a shell that has a solar collector, absorber can be at high temperature-absorb the solar energy ray of concentrating more than 500 ℃ usually, and also a kind of working fluid circulates therein and solar collector carries out heat exchange indirectly or directly.The shell of this solar energy acceptor is provided with a hole, and the hole is arranged in the focal area of a solar energy ray central system, and fixes a window, can make the solar energy ray from the high concentration of central system enter and it is passed to solar collector.
The solar collector that is used for above-mentioned central solar energy acceptor makes a kind of volume solar collector usually, is constructed with the form of three-dimensional array, working fluid can therefrom be flow through, thereby heat is passed to working fluid.This solar energy acceptor is for example at IL 97091 and US5, describes in 323,764.
The working fluid that is used for central solar collector usually or play the heat carrier fluid or be designed between the various compositions of working fluid, to carry out thermoinduction, can be by the thermal chemical reaction of catalysis.
For example be used to the carrying out of the thermal chemical reaction of the operation of the steam turbine that generates electricity or particular types for various commercial Application, must make working fluid under at least about 2 atmospheric high pressure, pass through systemic circulation.Under such high pressure, the density of the gaseous working fluid of circulation is greater than the density under uninflated state, and the pressure loss reduces in cyclic process thus.
The problem that relates to the most critical of the pressurization central authorities solar energy acceptor with a window is the mechanical strength of window.Material with required optics and thermal characteristics is very crisp, although these materials can bear bigger compression like this, in addition very little tension under fracture or cracked easily.Stress in the window is produced by the gas pressure in the recipient inside, and when can also be by the miscellaneous part of window and the recipient that is in contact with it when temperature raises in operating process by uneven thermal expansion generation.
US 5,323,764 and US 5,421,322 disclose a kind of central solar energy acceptor, have a window, and window has a conical butt and has an open front and the open back end that diameter is less that diameter is bigger, two openends all are formed with cylindrical forward and backward support ring, and the front and back ends of window is installed on the shell at the support ring place.The front end of shell is provided with an annular positioning groove, and the preceding support ring of window is undertaken on wherein and be installed in this by an O shape ring.The back support ring of window is installed in the metal derby, and metal derby absorbs bellows and a reflecting element particularly including thermal expansion, can protect metal derby and bellows to avoid entering the solar energy ray of the concentrating influence of window.
The solar receiver that the purpose of this invention is to provide an a kind of new window that is used for a solar receiver and a new described window of use.
According to an aspect of the present invention, provide a kind of solar energy acceptor, having comprised:
-one axisymmetric shell has front-end and back-end and has a hole at front end;
-one is installed in the coaxial elongated tubular product such window of described Kong Zhongyu shell, window have that a rear end that is installed in a open front on the described shell front end and an adjacent housings is provided with and with its without any the closed rear end of installing, window has a first surface and the second surface towards enclosure towards the solar energy ray of concentrating of incident;
-one volume solar collector that is arranged in the described shell and centers on and extend, be used to absorb the solar energy ray that has therefrom passed along described elongated window;
-be formed on Working-fluid intaking and outlet in the described shell, be used for discharging a kind of pressurized working fluid to its injection with from it respectively in a kind of working fluid and interactional mode of described volume absorber of making.
According to another aspect of the present invention, a kind of window that is used for the central solar energy acceptor of the above-mentioned type is provided, be used for making incident high concentration the solar energy ray by and enter recipient, described window has an elongated tubular form, has an open front and the closed rear end without any erecting device in the described hole that can be installed in recipient.
The Window Design of the present invention with and the mounting means that in central solar energy acceptor, only is installed in window at its front end simplified the design of recipient, and avoid the too much restriction of window, thereby it can be used under the high temperature and high pressure.
Window is conical butt preferably, and its open front diameter is big and its closed rear end diameter is less.But window can have other elongated axisymmetric shape, for example one cylindrical, its front end can be provided with a support ring that diameter is bigger than window remainder in the case.
Best, the front end of window by elastic mounting device for example spring load anchor clamps and be installed on the shell, elastic mounting device keeps the axial force that window puts in place and prevent from be applied to that window is moved under the pressure effect on it when recipient is worked in hot and pressures cycle applying on the forms for a long time.
Best, the minor diameter closed rear end of window is a recessed surface of lid shape, combines with the continuous one of the conical surface of window.The shape of closed rear end and the conical butt of forms are guaranteed from being applied to that any pressure on the window produces vertically and along the component of window surface effect, so only producing compression and do not produce the tension that window is ruptured in the shell.
Best, Working-fluid intaking is positioned near the rear end of the shell coaxial with it, with the closing end towards described window.And what a other solar collector is installed in the shell between the closing end of Working-fluid intaking and window, so that absorb the solar energy ray of concentrating by closing end.Thereby directly the wearing of solar energy ray that can protect Working-fluid intaking to avoid concentrating before interacting with described volume solar collector penetrated, and it is carried out preheating.Described other solar collector also can be a kind of volume solar collector.
In order to understand the present invention and to find out its actual working condition, a preferred embodiment is described with reference to the accompanying drawings in an exemplary fashion, wherein:
Fig. 1 is a cutaway view of a central solar energy acceptor of the present invention; And
Fig. 2 is an enlarged drawing in the recipient A district among Fig. 1.
Fig. 1 illustrates a central solar energy acceptor of the present invention, it is designed to and can links to each other with a solar energy ray central system (not shown), and comprise a metal shell 1 with longitudinal axis X, 3, one rear ends 6 of front end and a lateral wall 8 that wherein has a hole 4 towards the concentrated solar energy ray of quilt.Recipient comprises that also is installed in the hole 4 an elongate tubular window 10 coaxial with shell 1, and window can be adjusted to the solar energy ray that makes high concentration and enter from solar energy ray central system, and can stand high temperature.For this reason, window can be made by any conventional material with required optics and thermal characteristics, for example coagulates fused quartz.
10 of windows are fixed in the shell 1 by the bigger end 11 of its diameter, and clearly visible as Fig. 2, end 11 is installed in the hole 4 at front end 3 places of shell 1.The front end 3 of shell is provided with a cannelure 20, and cannelure 20 has the bottom land and the groove sidewall 24 that have a lip ring 22.The large-diameter end 11 of window is installed in the cannelure 20 by the adjustable spring-loaded erecting device (only illustrating in Fig. 2) that the side face in a plurality of holes 4 along shell is provided with.Each erecting device comprises mushroom-shaped anchor clamps, has an eccentric head 41 and a pillar 42 that has a shirt rim 43.The head 41 of anchor clamps 40 has a taper seat, and with the profile of the frustum of a cone forms 13 that adapt to window 10, and head is lined with a soft pottery and is with 44, can contact and can not damage it with window.The shirt rim 43 of anchor clamps 40 remains between one first helical spring 45 and one flange 46 by 48 pressurizations of second spring.By only leaning against the setting that then can finish anchor clamps on the second surface 18 of forms 13 up to eccentric head 41 with 44 around the axis rotary clamp of anchor clamps, thereby on window 10, apply a suitable pressure, and spring 45 and 48 is designed to keep this pressure for a long time.Because the cone shape of forms, this pressure produces an axial force, push window the seal 22 of cannelure 20 bottoms to, to keep window to put in place and to prevent when recipient work that in hot and pressures cycle process window is moved under the effect that acts on power thereon.
The closed minor diameter rear end 12 of window is a lid shape surface, can engage with the truncated cone 13 of window glossily to be one.Because smaller diameter end 12 do not have any erecting device, its lid shape surface can have the shape of any needs, for example can be spill, spherical or aspheric, perhaps even can be flat.
Recipient comprises also that a truncated cone 13 around window 10 extends and towards the first tubulose volume absorber 50 of truncated cone 13, and rear portion that is arranged on shell 1 and towards the second dish type volume washover type solar collector 52 of the closing end 12 of window 10.Absorber 50 and 52 second surfaces 18 with window 10 define a recipient chamber 53.
The first tubulose volume absorber 50 has a conical butt base 54, has a series of pin shape absorbing components 56 that are spaced apart from each other and stretch out to window 10 from a side of base 54.But absorber 50 can be other any suitable designs.For example, can not conical butt, but can be for polyhedral prism, cylindrical, parabola shaped, ellipse, or other shapes.The pin shape structure of absorbing component 56 is not very important, but can use other suitable structures, for example cylindrical tube of bar, hollow, the truncated cone, flat board etc.
The second volume absorber 52 can have at absorber 50 described similar designs, the difference be that the base body of absorber 52 should be installed with the hole or be designed so that a kind of working fluid can therefrom pass through.It also can be any other suitable type, for example honeycombed, sieve shape, gauze shape, foam shape etc.The parallel disc shaped of absorber 52 is not very important, can adopt other suitable shape yet.For example, absorber 52 can be a cheese, can have a dish type that does not have parallel surfaces, and dribbling is porose etc.
Each absorber 50,52 is made by any suitable thermal resistance material, the stainless steel of for example a kind of ceramic material, the metal alloy that is coated with pottery, carborundum, a kind of specific type of aluminium, nickel alloy etc.
Recipient also comprises a kind of 6 places, rear end Working-fluid intaking conduit 58 coaxial with it that is positioned at shell, is used for making working fluid to enter recipient chamber 53.Conduit 58 has the falred entrance 59 of a lateral dimension greater than the closing end 12 of window.The above-mentioned second volume absorber 52 preferably is installed in the falred entrance 59; thereby guarantee and to avoid being permeated the influence of the solar energy ray of concentrating of window by armour tubing 58, and guarantee before working fluid is sprayed into recipient chamber 53, to be preheating to a specific degree by small recipient 52 at the closing end 12 of window.
Recipient also comprises a working fluid ring exit chamber 60 around falred entrance 59, and one of them belt outlet opening 62 is positioned at the behind of big volume solar collector 50, and a pipe-type outlet passage 64 is used to make working fluid to leave from recipient chamber 53.
The preferably a kind of gas of working fluid that is used for central solar energy acceptor of the present invention, air for example can circulation in recipient chamber 53 under high temperature (about 500 ℃ or higher) and about at least 2 atmospheric high pressure.Working fluid can be any suitable type that can work the heat carrier effect of removing the heat that produces in the solar energy acceptor.In addition or instead, working fluid can comprise two or more mixture of ingredients, when contacting, react each other, promptly carry out thermochemical process with the solar energy acceptor of heat.Under latter event, the elongator 56 of volume recipient 50 can be coated with a kind of suitable catalyst.
Should be appreciated that the physical dimension of the entrance and exit of pressurized working fluid is not must be as mentioned above, but can revise to satisfy specific design requirement.
Shell 1 also comprises a kind of insulating materials, and the institute between the outer shell outer wall 8 of this material filling shell 1 and the base 54 of the first volume absorber 50 has living space, and around entry conductor 58, exit passageway 64 and ring exit chamber 60.
At work, the solar energy ray of concentrating enters through the larger diameter end 11 of window 10.Most of ray passes the truncated cone 13 of window and strikes on the absorbing component 56 of the first volume solar collector 50.The incident solar energy ray that does not pass forms 13 passes the closed rear end 12 of window and clashes into the second volume solar collector 52.Thereby solar collector 50 and 52 is heated.
Working fluid pressurized is injected in the recipient through entry conductor 58 and its falred entrance 59, thereby fluid flows through the second volume absorber 52 and was heated to a certain degree before entering recipient chamber 53 therein.After through second absorber 52, working fluid towards and flow along the closing end 12 of window, and further flow, thereby window all obtains cooling along its surface along the truncated cone 13 of window 10.Can obtain same effect with above-mentioned window with a kind of double glazing design, wherein working fluid is along the Clearance Flow between the glass, and the front and back ends at window in the inner layer glass of window is provided with suitable fluid passage.
Behind the zone that arrives the recipient chamber 53 adjacent with the front end 3 of shell, working fluid returns and to flow through absorber 50 absorbing components serial with it 56 crossing, and wherein working fluid is heated and/or carries out a kind of endothermic chemical reaction.The working fluid of heat and/or product further enter in the ring exit chamber 60 and through exit passageway 64 through outlet opening 62 and discharge, and for example are used to operate electric turbine.
In the course of the work, any motion with respect to recipient shell window 10 loads erecting device 30 counteractings by spring.No matter any symmetrical or asymmetric thermal expansion of any recipient parts can not pass to window 10, because 10 of windows are arranged on larger diameter end 11 places.
Should be appreciated that the foregoing description just is used for a central solar energy acceptor of the present invention and an example that is used for window wherein, the scope that the present invention is defined by the claims covers other embodiment that it will be apparent to those skilled in the art fully.
Claims (20)
1. solar energy acceptor comprises:
-one axisymmetric shell has front-end and back-end and has a hole at front end;
-one is installed in the coaxial elongated tubular product such window of described Kong Zhongyu shell, window have that a rear end that is installed in a open front on the described shell front end and an adjacent housings is provided with and with its without any the closed rear end of installing, window has a first surface and the second surface towards enclosure towards the solar energy ray of concentrating of incident;
-one volume solar collector that is arranged in the described shell and centers on and extend, be used to absorb the solar energy ray that has therefrom passed along described elongated window;
-be formed on Working-fluid intaking and outlet in the described shell, be used for discharging a kind of pressurized working fluid to its injection with from it respectively in a kind of working fluid and interactional mode of described volume absorber of making.
2. central solar energy acceptor as claimed in claim 1 is characterized in that, the front end of window is installed on the shell by the elastic mounting device that the hole in described shell is provided with.
3. central solar energy acceptor as claimed in claim 2 is characterized in that, described erecting device is that spring loads anchor clamps.
4. as each described central solar energy acceptor among the claim 1-3, it is characterized in that the described closed rear end of window has a recessed arcuate shape of lid shape.
5. as each described central solar energy acceptor among the claim 1-4, it is characterized in that the described rear end of window is flat.
6. as each described central solar energy acceptor among the claim 1-5, it is characterized in that Working-fluid intaking is positioned near the face rear end of the shell coaxial with it and to the described closing end of window.
7. central solar energy acceptor as claimed in claim 6 is characterized in that, comprises that also one other is installed in the absorber between the closing end of Working-fluid intaking and window in the shell.
8. central solar energy acceptor as claimed in claim 7 is characterized in that, described other absorber has a lateral dimension greater than the closing end of window, can absorb the solar energy ray of concentrating that passes described closing end like this.
9. central solar energy acceptor as claimed in claim 8 is characterized in that, described other absorber has can be made from the working fluid of the described inlet passage of process therefrom.
10. central solar energy acceptor as claimed in claim 9 is characterized in that, described inlet is a catheter shape with infundibulate front end, and described other volume absorber is installed in the described infundibulate end.
11., it is characterized in that described other volume absorber is dish type substantially as each described central solar energy acceptor among the claim 7-10.
12., it is characterized in that described window has a truncated cone as each described central solar energy acceptor among the claim 1-11.
13. as each described central solar energy acceptor among the claim 1-11, it is characterized in that described window has a cylinder, wherein said front end is a cast, support ring has a diameter bigger than cylinder.
14., it is characterized in that described window is two glass moulds as the described central solar energy acceptor of above each claim.
15. one kind be used in one in its front end has the central solar energy acceptor in a hole, the solar energy ray that is used for the high concentration that is installed in described hole and makes incident by and enter window in the recipient, described window has an elongated tubular form, has the open front and the closed rear end without any erecting device that can be installed in the described hole.
16. window as claimed in claim 15 is characterized in that, has a truncated cone.
17. window as claimed in claim 15 is characterized in that, has a cylinder, wherein said front end is a cast, and support ring has a diameter bigger than cylinder.
18., it is characterized in that described window is two glass moulds as each described window among the claim 15-17.
19., it is characterized in that the described closed rear end of window is a recessed arc lid shape shape as each described window among the claim 15-18.
20., it is characterized in that the described closed rear end of window is flat as each described window among the claim 15-18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001370987A CN1304795C (en) | 2000-12-29 | 2000-12-29 | Central solar energy acceptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001370987A CN1304795C (en) | 2000-12-29 | 2000-12-29 | Central solar energy acceptor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1361396A true CN1361396A (en) | 2002-07-31 |
| CN1304795C CN1304795C (en) | 2007-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001370987A Expired - Fee Related CN1304795C (en) | 2000-12-29 | 2000-12-29 | Central solar energy acceptor |
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| Country | Link |
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| CN (1) | CN1304795C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100340821C (en) * | 2004-01-15 | 2007-10-03 | 中国科学院工程热物理研究所 | Chamber type heat absorber |
| CN1789857B (en) * | 2004-12-16 | 2010-05-26 | 中国科学技术大学 | Medium-high temperature heat energy converter for high density solar energy |
| CN102425862A (en) * | 2011-08-15 | 2012-04-25 | 哈尔滨工业大学 | Conical heat absorber with inward-convex bottom surface, regular and flat top and an optical window containing selective penetrating coating layer |
| CN102812304A (en) * | 2010-01-30 | 2012-12-05 | 黑利福卡斯有限公司 | Mounting assembly |
| CN103090555A (en) * | 2013-01-22 | 2013-05-08 | 北京航空航天大学 | Wedge structure cavity type solar energy receiver |
| CN103123175A (en) * | 2013-02-04 | 2013-05-29 | 南京凌日星能源科技有限公司 | Efficient solar energy thermal absorber based on optical-thermal absorbing cone structure |
| CN103743135A (en) * | 2008-08-31 | 2014-04-23 | 耶达研究与发展有限公司 | Solar receiver system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH713765A1 (en) * | 2017-05-10 | 2018-11-15 | Synhelion Sa C/O Avv Luca Tenchio | Method for operating a receiver and receiver for carrying out the method. |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL97091A (en) * | 1991-01-14 | 1994-07-31 | Yeda Res & Dev | Solar absorber |
| IL100743A (en) * | 1992-01-23 | 1994-11-28 | Yeda Res & Dev | Central solar receiver |
| US5947114A (en) * | 1995-02-15 | 1999-09-07 | Yeda Research And Development Company Ltd. | Central solar receiver with a multi component working medium |
| DE19710986C2 (en) * | 1997-03-17 | 2001-02-22 | Deutsch Zentr Luft & Raumfahrt | Volumetric radiation receiver and method for extracting heat from concentrated radiation |
| DE19744541C2 (en) * | 1997-10-09 | 2001-05-03 | Deutsch Zentr Luft & Raumfahrt | Solar receiver |
-
2000
- 2000-12-29 CN CNB001370987A patent/CN1304795C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100340821C (en) * | 2004-01-15 | 2007-10-03 | 中国科学院工程热物理研究所 | Chamber type heat absorber |
| CN1789857B (en) * | 2004-12-16 | 2010-05-26 | 中国科学技术大学 | Medium-high temperature heat energy converter for high density solar energy |
| CN103743135A (en) * | 2008-08-31 | 2014-04-23 | 耶达研究与发展有限公司 | Solar receiver system |
| CN102812304A (en) * | 2010-01-30 | 2012-12-05 | 黑利福卡斯有限公司 | Mounting assembly |
| CN102812304B (en) * | 2010-01-30 | 2016-01-20 | 黑利福卡斯有限公司 | Installation component |
| CN102425862A (en) * | 2011-08-15 | 2012-04-25 | 哈尔滨工业大学 | Conical heat absorber with inward-convex bottom surface, regular and flat top and an optical window containing selective penetrating coating layer |
| CN102425862B (en) * | 2011-08-15 | 2013-03-13 | 哈尔滨工业大学 | Conical heat absorber with inward-convex top surface of optical window containing selective penetrating coating layer |
| CN103090555A (en) * | 2013-01-22 | 2013-05-08 | 北京航空航天大学 | Wedge structure cavity type solar energy receiver |
| CN103090555B (en) * | 2013-01-22 | 2014-10-29 | 北京航空航天大学 | Wedge structure cavity type solar energy receiver |
| CN103123175A (en) * | 2013-02-04 | 2013-05-29 | 南京凌日星能源科技有限公司 | Efficient solar energy thermal absorber based on optical-thermal absorbing cone structure |
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| Publication number | Publication date |
|---|---|
| CN1304795C (en) | 2007-03-14 |
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Granted publication date: 20070314 Termination date: 20161229 |