CN102981240B - Focusing method for disc-type solar energy collector - Google Patents
Focusing method for disc-type solar energy collector Download PDFInfo
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- CN102981240B CN102981240B CN201210486173.XA CN201210486173A CN102981240B CN 102981240 B CN102981240 B CN 102981240B CN 201210486173 A CN201210486173 A CN 201210486173A CN 102981240 B CN102981240 B CN 102981240B
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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
Abstract
The invention relates to a focusing method for a disc-type solar energy collector. The focusing method for the disc-type solar energy collector at present is difficult in operation, low in debugging efficiency and low in focusing accuracy. The focusing method comprises the following steps that a target is installed at a focusing position of a disc face of the disc-type solar energy collector; the disc face of the disc-type solar energy collector comprises a number block reflection panel; the target is of a flat structure, the target is matched with the solar energy collector, a plurality of marks are arranged on one face of the target facing to the disc face, and quantity and distribution modes of the marks are respectively unanimous with the reflection panel of the solar energy collector; the reflection panel disc-type solar energy collector is adjusted to enable the marks on the target to image on the corresponding reflection panel; and each reflection panel is adjusted to enable the marks on the whole target to completely image on the disc face, and focusing work of the disc-type solar energy collector is completed. The focusing method is simple in operation, high in debugging efficiency and high in focusing accuracy.
Description
Technical field
The present invention relates to a kind of focus adjustment method, especially a kind of focus adjustment method of disc type solar energy heat collector is related to, be mainly used in regulation disc face area large, and the disc type solar energy heat collector that whole dish face is made up of polylith Reflector Panel, if dish face area is at tens square metres to hundreds of square metres, and the disc type solar energy heat collector that reflection dish face adopts distinguishization to install, be specially adapted to middle and small scale and test solar-thermal generating system in disc type solar energy heat collector focus, be a kind of adjustment method of solar energy collectors, belong to solar energy heat utilization field.
Background technology
Solar energy utilization technique is the advanced subject of world today's regenerative resource research field, it utilizes high precision condenser that low-density solar energy converging is become density of heat energy, and by heat sink, heat energy is carried out trans-utilization, there is the advantage of zero-emission, sustainable use.Solar thermal utilization is mainly divided into slot type, tower and dish-style three kinds of forms, and the most potential is at present disc type solar energy heat build-up technology, and dish-style Stirling solar generation technology made the world attract attention because of its alarming development speed especially especially in recent years.Disc type solar energy heat collector utilizes rotational paraboloid mirror by solar light focusing on the receiver being positioned at parabolic focus, and the working medium in receiver is heated to about 750 DEG C, drives heat engine to generate electricity.It has that photoelectric transformation efficiency is high, water consumption is low, generation mode is flexible and can the progressively advantage such as scale.
At present, external disc type solar energy technology has been tending towards ripe, is in pilot scale and large-scale promotion stage.By contrast, although domestic relation technological researching achieves some achievements, also do not obtain substantial progress on the whole, correlative study is still in the junior stage.In most cases, disc type solar energy heat collector and Stirling engine form a generator unit, the core component of this generator unit is Stirling engine, but, in whole dish-style system, also have a gordian technique not cause extensive concern, or relevant technical literature and scientific paper actually rare, that is exactly the debugging technique of dish-style heat collector, and the focal beam spot by dish face adjusts on heat dump, therefore also can be referred to as the focus technique in dish face.
For obtaining higher conversion efficiency and better economy, the development trend of disc type solar energy heat collector is undoubtedly the continuous increase of reflective surface area, consider the limitation of manufacturing process and installation, transport, the structure that certainly will distinguishization be adopted to install tens square metres of reflection dish faces to hundred square meters, namely whole dish face is made up of polylith Reflector Panel, every block positions of panels, in the debug phase, need be readjusted, to obtain good focusing effect by such disc type solar energy heat collector.
The congregational rate of Reflector Panel, most important in whole dish-style system, it is by the efficiency of direct influential system, reliability and safety etc.At present, disc type solar energy thermoelectric device has been developed although domestic, but substantially also rest on the test phase of model machine, for be only the debugging of individual system, generally all directly focus under sunshine direct projection, the impact of climate environment is large, the operation easier of this kind of focusing mode is large, efficiency is low, and accuracy is unreliable, and there is serious potential safety hazard.In addition, along with the development of dish-style system, to the large-scale commercial operations in later stage, for tens even the photo-thermal power station of hundreds of cover dish-style device formation, the focus technique of dish-style systematic reflection panel will hold the balance.
In sum, also do not have a kind of simple to operate at present, debugging efficiency is high, and the degree of accuracy of focusing is high, and the security performance of focussing process is high, does not have sunshine still can continue the focus adjustment method of the disc type solar energy heat collector of operation.
Summary of the invention
The object of the invention is to overcome above shortcomings in prior art, and providing a kind of simple to operate, debugging efficiency is high, and the degree of accuracy of focusing is high, the security performance of focussing process is high, does not have sunshine still can continue the focus adjustment method of the disc type solar energy heat collector of operation.
The present invention's adopted technical scheme that solves the problem is: the feature of the focus adjustment method of this disc type solar energy heat collector is: described focus adjustment method comprises the steps:
(1) at the focus place in the dish face of disc type solar energy heat collector, a target is installed; The dish face of described disc type solar energy heat collector comprises several piece Reflector Panel; Described target is plate-like structure, the shape of this target and size match with the shape of disc type solar energy heat collector and size respectively, described target is provided with several mark towards the one side in dish face, the quantity of described mark and distribution form are consistent with the quantity of Reflector Panel in disc type solar energy heat collector and distribution form respectively, make mark and Reflector Panel one_to_one corresponding;
(2) Reflector Panel on dish-style solar energy collectors is regulated, imaging on the Reflector Panel that being marked on target is corresponded; After regulating every block Reflector Panel, finally reach the object of mark perfect imaging on dish face on whole target, thus complete the focusing work to disc type solar energy heat collector.
As preferably, in step of the present invention (2), when regulating the Reflector Panel on dish-style solar energy collectors, adopt cameras observe and record the imaging be marked on corresponding Reflector Panel in target, described position for video camera is on the central shaft in the dish face of disc type solar energy heat collector, and the distance between video camera and dish face is more than or equal to four times of focal lengths in the dish face of disc type solar energy heat collector.
As preferably, target of the present invention is labeled as one in pattern, numeral, word, letter, shape and color or two or more.
As preferably, in step of the present invention (2), when regulating the Reflector Panel on dish-style solar energy collectors, in target, be marked at imaging on corresponding Reflector Panel, and the virtual image of mark in target is covered with the corresponding Reflector Panel of monoblock.
As preferably, in the mark on target of the present invention, distinct between adjacent two marks, make easily to tell the overall distribution situation that target marks, be convenient to imaging on Reflector Panel that being marked on target correspond.
As preferably, in step of the present invention (1), first described disc type solar energy heat collector is adjusted horizontal structure, then at the focus place in the dish face of disc type solar energy heat collector, a target is installed.
The present invention compared with prior art, has the following advantages and effect: 1, utilize the principle of optical imagery to carry out focusing debugging, with routine under direct sunlight, and to compare by the focus adjustment method of eye-observation, there is higher accuracy and reliability.2, cost of focusing is low, and without the need to any professional equipment and high-end technology, target used is also by making by hand, and debugging efforts with low cost, implements relatively easy.Though 3 carry out out of doors, do not have sunshine still can continue operation, make the construction and installation duration of dish-style thermo-power station more controlled, the security of workmen obtains reliable guarantee.4, simple to operate, focusing efficiency is high, is mainly used in regulation disc face area greatly, and the disc type solar energy heat collector that whole dish face is made up of polylith Reflector Panel, be conducive to the better development promoting disc type solar energy heat collector.
Accompanying drawing explanation
Fig. 1 is the disc type solar energy heat collector in the disc type solar energy heat collector focus adjustment method of the embodiment of the present invention, the structural representation between target and video camera.
Fig. 2 is the structure for amplifying schematic diagram of target in the embodiment of the present invention.
Fig. 3 is the structural representation in the dish face in the disc type solar energy heat collector of the embodiment of the present invention.
Fig. 4 is after the adjustment by the focus adjustment method of the disc type solar energy heat collector in the embodiment of the present invention, the dish face in figure 3 of the mark on the target in Fig. 2 is carried out the structural representation after imaging.
Fig. 5 is the structural representation of the light trend with good grounds optical imaging concept in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, also by embodiment, the present invention is described in further detail, and following examples are explanation of the invention and the present invention is not limited to following examples.
Embodiment.
See Fig. 1 to Fig. 5, the focus adjustment method of the disc type solar energy heat collector 1 in the present embodiment comprises the steps.
(1) first disc type solar energy heat collector 1 is adjusted horizontal structure, then install a target 2 at the focus place in the dish face of disc type solar energy heat collector 1, one in target 2 facing to dish face.In the present embodiment, the focus place in the dish face of said disc type solar energy heat collector 1 is theoretical focal point place, and the theoretical focal point place in this dish face can by calculating, and this belongs to common practise to those skilled in the art.
The dish face of the disc type solar energy heat collector 1 in the present embodiment comprises several piece Reflector Panel 4, and the quantity of this Reflector Panel 4 is usually between tens pieces to thousands of pieces, and the angle being positioned at the Reflector Panel 4 on disc type solar energy heat collector 1 can regulate.
Target 2 in the present embodiment is plate-like structure, and target 2 has some strength, and this intensity will be enough to ensure that target 2 can keep the state of plate-like structure.The shape of the target 2 in the present embodiment and size match with the shape of disc type solar energy heat collector 1 and size respectively.
The present embodiment is provided with several mark 5 at target 2 towards the one side in dish face, and the quantity of mark 5 and distribution form are consistent with the quantity of Reflector Panel 4 in disc type solar energy heat collector 1 and distribution form respectively, make mark 5 and Reflector Panel 4 one_to_one corresponding.What mark 5 in the present embodiment on target 2 adopted is in fan-shaped distribution and be printed on the form of single arabic numeral, and the mark 5 on the target 2 in the present invention can be one in pattern, numeral, word, letter, shape and color or two or more.Under normal circumstances, in the mark 5 on target 2, distinct between adjacent two marks 5, make easily to tell the overall distribution situation of mark 5 on target 2, be convenient to mark 5 imaging 6 on the Reflector Panel 4 corresponded on target 2.
Target 2 in the present embodiment is arranged on the focus place in the dish face of disc type solar energy heat collector 1, according to optical imaging concept, on each block Reflector Panel 4 of disc type solar energy heat collector 1, by the virtual image of mark 5 obtaining corresponding.
(2) Reflector Panel 4 on dish-style solar energy collectors 1 is regulated, video camera 3 is adopted to observe and record the imaging 6 of the mark 5 in target 2 on the Reflector Panel 4 of correspondence, video camera 3 is arranged in the dead ahead of disc type solar energy heat collector 1, and video camera 3 is positioned on the central shaft in dish face of disc type solar energy heat collector 1, the distance between this video camera 3 and dish face is more than or equal to four times of focal lengths in the dish face of disc type solar energy heat collector 1.Straight line y is the central shaft in the dish face of disc type solar energy heat collector 1.
Can be convenient to observe by video camera 3 and record the imaging 6 of target 2, theoretically, video camera 3 should be placed on dead ahead, dish face infinite point, so just can observe the clearly imaging 6 of mark 5 on Reflector Panel 4 on target 2, but in actual mechanical process, when video camera 3 is from dish identity distance from when being greater than four times of focal lengths, just substantially can meet focusing requirement, the focus adjustment method in the present invention can be implemented.Distance d is exactly the distance between video camera 3 and dish face, and the length of distance d is more than or equal to four times of focal lengths in the dish face of disc type solar energy heat collector 1.
The imaging 6 on the Reflector Panel 4 corresponded of mark 5 on target 2 in the present embodiment, and the virtual image of mark 5 in target 2 is covered with the corresponding Reflector Panel of monoblock 4.After regulating every block Reflector Panel 4, finally reach the object of mark 5 perfect imaging 6 on dish face on whole target 2, thus complete the focusing work to disc type solar energy heat collector 1.
Although the present invention with embodiment openly as above; but it is also not used to limit protection scope of the present invention; any technician being familiar with this technology, not departing from the change and retouching done in the spirit and scope of the present invention, all should belong to protection scope of the present invention.
Claims (5)
1. a focus adjustment method for disc type solar energy heat collector, is characterized in that: described focus adjustment method comprises the steps:
(1) at the focus place in the dish face of disc type solar energy heat collector, a target is installed; The dish face of described disc type solar energy heat collector comprises several piece Reflector Panel; Described target is plate-like structure, the shape of this target and size match with the shape of disc type solar energy heat collector and size respectively, described target is provided with several mark towards the one side in dish face, the quantity of described mark and distribution form are consistent with the quantity of Reflector Panel in disc type solar energy heat collector and distribution form respectively, make mark and Reflector Panel one_to_one corresponding;
(2) Reflector Panel on dish-style solar energy collectors is regulated, imaging on the Reflector Panel that being marked on target is corresponded; After regulating every block Reflector Panel, finally reach the object of mark perfect imaging on dish face on whole target, thus complete the focusing work to disc type solar energy heat collector; When regulating the Reflector Panel on dish-style solar energy collectors, adopt cameras observe and record the imaging be marked on corresponding Reflector Panel in target, described position for video camera is on the central shaft in the dish face of disc type solar energy heat collector, and the distance between video camera and dish face is more than or equal to four times of focal lengths in the dish face of disc type solar energy heat collector.
2. the focus adjustment method of disc type solar energy heat collector according to claim 1, is characterized in that: described target is labeled as one in pattern, numeral, word, letter, shape and color or two or more.
3. the focus adjustment method of disc type solar energy heat collector according to claim 1, it is characterized in that: in described step (2), when regulating the Reflector Panel on dish-style solar energy collectors, be marked at imaging on corresponding Reflector Panel in target, and the virtual image of mark in target is covered with the corresponding Reflector Panel of monoblock.
4. the focus adjustment method of disc type solar energy heat collector according to claim 1, it is characterized in that: in the mark on described target, distinct between adjacent two marks, make easily to tell the overall distribution situation that target marks, be convenient to imaging on Reflector Panel that being marked on target correspond.
5. the focus adjustment method of disc type solar energy heat collector according to claim 1, it is characterized in that: in described step (1), first described disc type solar energy heat collector is adjusted horizontal structure, then at the focus place in the dish face of disc type solar energy heat collector, a target is installed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210486173.XA CN102981240B (en) | 2012-11-26 | 2012-11-26 | Focusing method for disc-type solar energy collector |
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| CN201210486173.XA CN102981240B (en) | 2012-11-26 | 2012-11-26 | Focusing method for disc-type solar energy collector |
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| CN102981240B true CN102981240B (en) | 2015-02-04 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104062743A (en) * | 2014-07-07 | 2014-09-24 | 大连宏海新能源发展有限公司 | Automatic focusing system used for regulating solar condensing lens and focusing method thereof |
| CN105758024A (en) * | 2016-03-18 | 2016-07-13 | 东方宏海新能源科技发展有限公司 | Disc-type tracking system focusing method |
| CN106772920A (en) * | 2017-01-18 | 2017-05-31 | 西部国际绿色能源斯特林(贵州)智能装备制造有限公司 | A kind of focus adjustment method and focusing system of Salar light-gathering concentrator |
| CN106556912B (en) * | 2017-01-18 | 2023-06-06 | 西部国际绿色能源斯特林(贵州)智能装备制造有限公司 | Automatic light adjusting device of solar energy light gathering disc |
| CN106547062B (en) * | 2017-01-18 | 2023-06-06 | 西部国际绿色能源斯特林(贵州)智能装备制造有限公司 | Automatic dimming system of solar energy light-gathering disc |
| CN106707457B (en) * | 2017-01-18 | 2023-06-06 | 西部国际绿色能源斯特林(贵州)智能装备制造有限公司 | Solar energy spotlight video disc dimming system |
| CN106526783B (en) * | 2017-01-18 | 2023-06-06 | 西部国际绿色能源斯特林(贵州)智能装备制造有限公司 | Manual dimming device of solar energy spotlight disc |
| CN106989526B (en) * | 2017-04-14 | 2023-01-24 | 主力能源有限公司 | Online focus calibrating device of dish formula condensing lens |
| CN107315885B (en) * | 2017-07-05 | 2020-11-03 | 大连宏海新能源发展有限公司 | Disc type solar system focusing method with uniformly distributed energy flow |
| CN111397225B (en) * | 2020-04-07 | 2021-10-15 | 大连工业大学 | Method for installing and correcting disc type solar mirror surface |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090277442A1 (en) * | 2008-05-10 | 2009-11-12 | Reed Jensen | Coiled heat exchanger with beam spreader especially for use with solar-powered gas processors |
| CN101588147B (en) * | 2008-05-20 | 2012-10-10 | 鸿富锦精密工业（深圳）有限公司 | Solar energy collecting system |
| JP2010249345A (en) * | 2009-04-13 | 2010-11-04 | Masahide Ichikawa | Device for acquiring alkali metal or alkaline earth metal from alkali metal chloride or alkaline earth metal chloride |
| CN101806502B (en) * | 2010-04-14 | 2012-04-25 | 俞琦 | Solar energy collecting system of heliostat |
| CN201926145U (en) * | 2011-01-24 | 2011-08-10 | 上海新产业光电技术有限公司 | Novel disc-type solar energy fixed-point energy-collecting device and system |
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Inventor after: Zhong Tianyu Inventor after: Lan Wei Inventor after: Li Jianliang Inventor after: Zhou Yuhao Inventor after: Wang Bin Inventor after: Liu Zhanli Inventor before: Zhong Tianyu Inventor before: Wang Bin Inventor before: Lan Wei Inventor before: Zhou Yuhao |
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Free format text: CORRECT: INVENTOR; FROM: ZHONG TIANYU WANG BIN LAN WEI ZHOU YUHAO TO: ZHONG TIANYU LAN WEI LI JIANLIANG ZHOU YUHAO WANG BIN LIU ZHANLI |
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Address after: Hangzhou City, Zhejiang Province, 310030 Xihu District science and Technology Park of West Lake Park Road, No. 10 Patentee after: Huadian Power Science Research Institute Co., Ltd. Address before: Hangzhou City, Zhejiang Province, 310030 Xihu District science and Technology Park of West Lake Park Road, No. 10 Patentee before: China Huadian Electric Research Institute |
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