CN102298191B - Reflecting mirror of trench type solar thermal collector and forming process thereof - Google Patents
Reflecting mirror of trench type solar thermal collector and forming process thereof Download PDFInfo
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- CN102298191B CN102298191B CN2011102388465A CN201110238846A CN102298191B CN 102298191 B CN102298191 B CN 102298191B CN 2011102388465 A CN2011102388465 A CN 2011102388465A CN 201110238846 A CN201110238846 A CN 201110238846A CN 102298191 B CN102298191 B CN 102298191B
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- catoptron
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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 reflecting mirror of a trench type solar thermal collector and a forming process thereof. The forming process comprises the following steps: firstly, casting a reflecting mirror support of which the upper part is a parabolic cylinder; then, cutting out a plane mirror according to preset length and width; pasting at least two strong adhesive tapes onto the back part of the plane mirror along the bent direction of the parabolic cylinder; then, evenly cutting the plane mirror into strip reflecting mirrors in width of 25mm-45mm; then, pasting a substrate plate onto the upper surface of the reflecting mirror support by using the strong adhesive tapes; and finally, pasting the strip reflecting mirrors spliced together by the strong adhesive tapes onto the substrate plate to finally form a set of combined faces which are similar to the parabolic cylinder and are formed by multiple planes on the back faces of the strip reflecting mirrors. The invention has the advantages that the reflecting mirror of the trench type solar thermal collector has the simple forming process, low processing cost and good weather resistance, and is not easy to deform.
Description
Technical field
The present invention relates to catoptron and the moulding process thereof of a kind of catoptron of heat collector, particularly a kind of trough type solar heat-collector.
Background technology
Sun power is inexhaustible regenerative resource, and the today of reduce year by year at fossil fuel, the international energy situation is increasingly severe, development and use sun power is one of important channel of realizing energy supply diversification, assurance energy security.The trough solar heat collector utilizes parabolic gathering sun power directional light, thus heating working medium, high-temperature steam in the generation.Trough type solar heat-collector generally comprises: thermal-collecting tube, catoptron, bracing or strutting arrangement and tracking means.Wherein catoptron is formed by the reflecting material of parabolic shape, and thermal-collecting tube is positioned on the paraboloidal focal line, and tracking means guarantees that normal, thermal-collecting tube and 3 on the sun at mirror optics center is in alignment.
Traditional trough type solar heat-collector, catoptron adopt the integral forming method manufacturing, however the higher and easy distortion of catoptron cost of making according to this method, and reliability is not high.For example: the Electrician Institute of Chinese Academy of Sciences is at the groove type heat collector of research and development in 2004, its catoptron adopts ultra-thin glass catoptron to be attached to the method manufacturing of the substrate that fiberglass makes, the moulding process cost of fiberglass substrate is higher and weatherability is bad, easily distortion causes subsides glass mirror thereon to be difficult to form parabolic shape after the distortion.For example the bright sun power of emperor group is at the groove type heat collector of exploitation in 2010 again, and its catoptron adopts the ultra-thin glass catoptron to be attached to the method manufacturing on glass of hot bending.Because accuracy requirement is high, the process costs of its glass bending moulding is higher.And when catoptron was installed, catoptron was fixing by 4 at back, and the man-hour of adjusting these relative position of 4 needs during installation is more, has increased installation cost.US Patent No. 6994082 adopts membraneous material as reflecting material, and invents the face type that a kind of tensioning system keeps reflectance coating.Endothermic tube and heat collector link together and rotate around the rotating shaft at reflectance coating place simultaneously in this invention.This tensioning system reliability is not high, is difficult to satisfy the reliability of catoptron parabolic shape.The tracking means of this patent is realized by power wheel in addition, and reliability and weatherability are not high.
The formation of Chinese patent CN10186406 catoptron adopts the mode of strip support member to form a parabolic shape, again catoptron is attached to final formation on the parabolic shape strip support member.The described catoptron cost of this patent is relatively low, but the parabolic precision that bar forms is subjected to the linearity of bar itself and the Accuracy of radial section.And what the more important thing is that bar forms is not parabola but similar paraboloidal many plane combinations of being pieced together by a lot of planes.Patent WO2007/087680 adopts the strip support member to form parabola, reflecting material is attached on the parabola of many strip support members compositions again.The problem and the above-mentioned Chinese patent that exist are similar.
Summary of the invention
The object of the invention is to, a kind of catoptron and moulding process thereof of trough type solar heat-collector is provided, it has advantages of, and moulding process is simple, processing cost is low, not yielding and weather resisteant good.
Technical scheme of the present invention: a kind of catoptron moulding process of trough type solar heat-collector may further comprise the steps:
Step 1: adopt aluminium alloy or steel cast-in-block mode to cast out the mirror support that top is parabolic cylinder;
Step 2: cut a level crossing according to predetermined length and width size, the direction along the parabolic cylinder bending on the back coating face of this level crossing is pasted at least 2 mightiness belts;
Step 3: the strip catoptron that then with cutter sweep this level crossing edge is cut into equably 25mm～45mm width perpendicular to the direction of mightiness belt;
Step 4: the upper surface at mirror support is pasted underboarding with mightiness belt, makes underboarding form the parabolic cylinder identical with the upper surface of mirror support;
Step 5: will stick on the underboarding by the strip catoptron that mightiness belt bonds together at last, the strip catoptron makes the final combinatorial surface that forms many planes formation of the nearly parabolic cylinder of a winding in the back side of strip catoptron along with the face type change relative angle separately of underboarding.
In the catoptron moulding process of aforesaid trough type solar heat-collector, in the described step 3, during the cutting planes mirror, cutting thickness is the thickness of level crossing, can not cut to mightiness belt, and the strip catoptron after the cutting still bonds together by mightiness belt.
In the catoptron moulding process of aforesaid trough type solar heat-collector, in the described step 3, the preferred cutting width of level crossing is 35mm.
In the catoptron moulding process of aforesaid trough type solar heat-collector, the underboarding in the described step 4 adopts steel plate, aluminium-plastic panel, corrosion resistant plate or galvanized iron sheet.
A kind of catoptron that adopts the trough type solar heat-collector that aforesaid moulding process processes, comprise mirror support, mightiness belt, underboarding and strip catoptron, the mirror support that is no less than 2 is set up in parallel, the top of mirror support is parabolic cylinder, the parabolic cylinder on each mirror support top all bonds together by mightiness belt and underboarding, the strip catoptron is evenly distributed on the end face of underboarding, and strip catoptron and underboarding bond together by mightiness belt.This is the structure that the underboarding of parabolic cylinder is pasted the strip catoptron at end face, and having has that processing technology is simple, low cost of manufacture, and on-deformable advantage.
In the catoptron of aforesaid trough type solar heat-collector, the length of strip catoptron is identical with the length of underboarding, and the width of strip catoptron is 25mm～45mm.Because the diameter of the endothermic tube on the groove type heat collector is certain, and solar radiation is dispersed, so the width of every strip catoptron is restricted, it is very important that the width of strip catoptron is limited between 25mm～45mm, also can't cut out if width is crossed the narrow strip catoptron.
In the catoptron of aforesaid trough type solar heat-collector, the width of strip catoptron is preferably 35mm.
In the catoptron of aforesaid trough type solar heat-collector, described underboarding adopts steel plate, aluminium-plastic panel, corrosion resistant plate or galvanized iron sheet.Steel plate, aluminium-plastic panel, corrosion resistant plate or galvanized iron sheet all have good weatherability, therefore adopt these materials as underboarding, can make the parabolic cylinder of final formation be difficult for deforming.
In the catoptron of aforesaid trough type solar heat-collector, mirror support is provided with the triangle through hole.Open the hole at mirror support, the manufacturing cost of mirror support is reduced, and more be convenient to transportation.
Compared with prior art, the present invention is by to carrying out cutting with the monoblock level crossing, and be fixed in mightiness belt and have on the underboarding that end face is parabolic cylinder, make the final combinatorial surface that forms many planes formation of the nearly parabolic cylinder of a winding in the back side of polylith strip catoptron, the moulding process of this catoptron is very simple, and because the material of underboarding is all elected weather-proof good material as, therefore has on-deformable advantage.
The inventor is through repeatedly test, and final the selection carried out cutting with the width in 25mm～45mm scope, the more approximate parabolic cylinder of the curved surface of so final formation.
Owing to having the triangle through hole at mirror support, therefore greatly reducing difficulty of processing and the processing cost of mirror support.
Description of drawings
Fig. 1 is moulding process process flow diagram of the present invention;
Fig. 2 is the structural representation of the catoptron of heat collector of the present invention;
Fig. 3 is the structural representation of mirror support;
Being labeled as in the accompanying drawing: 1-mirror support, 2-underboarding, 3-mightiness belt, 4-strip catoptron, 5-triangle through hole.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples, but not as the foundation to the present invention's restriction.
Embodiments of the invention 1: as shown in Figure 1, a kind of catoptron moulding process of trough type solar heat-collector may further comprise the steps:
Step 1: adopt aluminium alloy or steel cast-in-block mode to cast out the mirror support that top is parabolic cylinder;
Step 2: cut a level crossing according to predetermined length and width size, the direction along the parabolic cylinder bending on the back coating face of this level crossing is pasted at least 2 mightiness belts;
Step 3: the strip catoptron that then with cutter sweep this level crossing edge is cut into equably the 25mm width perpendicular to the direction of mightiness belt; During the cutting planes mirror, cutting thickness is the thickness of level crossing, can not cut to mightiness belt, and the strip catoptron after the cutting still bonds together by mightiness belt;
Step 4: the upper surface at mirror support is pasted underboarding with mightiness belt, makes underboarding form the parabolic cylinder identical with the upper surface of mirror support;
Step 5: will stick on the underboarding by the strip catoptron that mightiness belt bonds together at last, the strip catoptron makes the final combinatorial surface that forms many planes formation of the nearly parabolic cylinder of a winding in the back side of strip catoptron along with the face type change relative angle separately of underboarding.
As shown in Figure 2: a kind of catoptron that adopts the trough type solar heat-collector that aforesaid moulding process processes, comprise mirror support 1, mightiness belt 3, underboarding 2 and strip catoptron 4, the mirror support 1 that is no less than 2 is set up in parallel, the top of mirror support 1 is parabolic cylinder, the parabolic cylinder on each mirror support 1 top all bonds together by mightiness belt 3 and underboarding 2, strip catoptron 4 is evenly distributed on the end face of underboarding 2, and strip catoptron 4 bonds together by mightiness belt 3 with underboarding 2.
The length of strip catoptron 4 is identical with the length of underboarding 2, and the width of strip catoptron 4 is 25mm.Described underboarding 2 adopts steel plate.
As shown in Figure 3: mirror support 1 is provided with triangle through hole 5.
Embodiments of the invention 2: as shown in Figure 1: a kind of catoptron moulding process of trough type solar heat-collector may further comprise the steps:
Step 1: adopt aluminium alloy or steel cast-in-block mode to cast out the mirror support that top is parabolic cylinder;
Step 3: the strip catoptron that then with cutter sweep this level crossing edge is cut into equably the 35mm width perpendicular to the direction of mightiness belt; During the cutting planes mirror, cutting thickness is the thickness of level crossing, can not cut to mightiness belt, and the strip catoptron after the cutting still bonds together by mightiness belt;
Step 4: the upper surface at mirror support is pasted underboarding with mightiness belt, makes underboarding form the parabolic cylinder identical with the upper surface of mirror support;
Step 5: will stick on the underboarding by the strip catoptron that mightiness belt bonds together at last, the strip catoptron makes the final combinatorial surface that forms many planes formation of the nearly parabolic cylinder of a winding in the back side of strip catoptron along with the face type change relative angle separately of underboarding.
As shown in Figure 2: a kind of catoptron that adopts the trough type solar heat-collector that aforementioned moulding process processes, comprise mirror support 1, mightiness belt 3, underboarding 2 and strip catoptron 4, the mirror support 1 that is no less than 2 is set up in parallel, the top of mirror support 1 is parabolic cylinder, the parabolic cylinder on each mirror support 1 top all bonds together by mightiness belt 3 and underboarding 2, strip catoptron 4 is evenly distributed on the end face of underboarding 2, and strip catoptron 4 bonds together by mightiness belt 3 with underboarding 2.
The length of strip catoptron 4 is identical with the length of underboarding 2, and the width of strip catoptron 4 is 35mm.Described underboarding 2 adopts aluminium-plastic panel.
As shown in Figure 3: mirror support 1 is provided with triangle through hole 5.
Embodiments of the invention 3: as shown in Figure 1: a kind of catoptron moulding process of trough type solar heat-collector may further comprise the steps:
Step 1: adopt aluminium alloy or steel cast-in-block mode to cast out the mirror support that top is parabolic cylinder;
Step 3: the strip catoptron that then with cutter sweep this level crossing edge is cut into equably the 45mm width perpendicular to the direction of mightiness belt; During the cutting planes mirror, cutting thickness is the thickness of level crossing, can not cut to mightiness belt, and the strip catoptron after the cutting still bonds together by mightiness belt;
Step 4: the upper surface at mirror support is pasted underboarding with mightiness belt, makes underboarding form the parabolic cylinder identical with the upper surface of mirror support;
Step 5: will stick on the underboarding by the strip catoptron that mightiness belt bonds together at last, the strip catoptron makes the final combinatorial surface that forms many planes formation of the nearly parabolic cylinder of a winding in the back side of strip catoptron along with the face type change relative angle separately of underboarding.
As shown in Figure 2: a kind of catoptron that adopts the trough type solar heat-collector that aforesaid moulding process processes, comprise mirror support 1, mightiness belt 3, underboarding 2 and strip catoptron 4, the mirror support 1 that is no less than 2 is set up in parallel, the top of mirror support 1 is parabolic cylinder, the parabolic cylinder on each mirror support 1 top all bonds together by mightiness belt 3 and underboarding 2, strip catoptron 4 is evenly distributed on the end face of underboarding 2, and strip catoptron 4 bonds together by mightiness belt 3 with underboarding 2.
The length of strip catoptron 4 is identical with the length of underboarding 2, and the width of strip catoptron 4 is 45mm.Described underboarding 2 adopts corrosion resistant plate.
As shown in Figure 3: mirror support 1 is provided with triangle through hole 5.
Embodiments of the invention 4: as shown in Figure 2: a kind of catoptron of trough type solar heat-collector, comprise mirror support 1, mightiness belt 3, underboarding 2 and strip catoptron 4, the mirror support 1 that is no less than 2 is set up in parallel, the top of mirror support 1 is parabolic cylinder, the parabolic cylinder on each mirror support 1 top all bonds together by mightiness belt 3 and underboarding 2, strip catoptron 4 is evenly distributed on the end face of underboarding 2, and strip catoptron 4 bonds together by mightiness belt 3 with underboarding 2.
The length of strip catoptron 4 is identical with the length of underboarding 2, and the width of strip catoptron 4 is 30mm.Described underboarding 2 adopts galvanized iron sheet.
As shown in Figure 3: mirror support 1 is provided with triangle through hole 5.
Claims (9)
1. the catoptron moulding process of a trough type solar heat-collector is characterized in that: may further comprise the steps:
Step 1: adopt aluminium alloy or steel cast-in-block mode to cast out the mirror support that top is parabolic cylinder;
Step 2: cut a level crossing according to predetermined length and width size, the direction along the parabolic cylinder bending on the back coating face of this level crossing is pasted at least 2 mightiness belts;
Step 3: the strip catoptron that then with cutter sweep this level crossing edge is cut into equably 25mm～45mm width perpendicular to the direction of mightiness belt;
Step 4: the upper surface at mirror support is pasted underboarding with mightiness belt, makes underboarding form the parabolic cylinder identical with the upper surface of mirror support;
Step 5: will stick on the underboarding by the strip catoptron that mightiness belt described in the step 3 bonds together at last, the strip catoptron makes the final combinatorial surface that forms many planes formation of the nearly parabolic cylinder of a winding in the back side of strip catoptron along with the face type change relative angle separately of underboarding.
2. the catoptron moulding process of a kind of trough type solar heat-collector according to claim 1, it is characterized in that: in the described step 3, during the cutting planes mirror, cutting thickness equals the thickness of level crossing, and the strip catoptron after the cutting still bonds together by mightiness belt.
3. the catoptron moulding process of a kind of trough type solar heat-collector according to claim 1, it is characterized in that: in the described step 3, the cutting width of level crossing is 35mm.
4. the catoptron moulding process of a kind of trough type solar heat-collector according to claim 1 is characterized in that: underboarding employing steel plate, aluminium-plastic panel, corrosion resistant plate or galvanized iron sheet in the described step 4.
5. catoptron that adopts the trough type solar heat-collector that the described moulding process of any one in the claim 1～4 processes, it is characterized in that: comprise mirror support (1), mightiness belt (3), underboarding (2) and strip catoptron (4), the mirror support (1) that is no less than 2 is set up in parallel, the top of mirror support (1) is parabolic cylinder, the parabolic cylinder on each mirror support (1) top all bonds together by mightiness belt (3) and underboarding (2), strip catoptron (4) is evenly distributed on the end face of underboarding (2), and strip catoptron (4) bonds together by mightiness belt (3) with underboarding (2).
6. the catoptron of a kind of trough type solar heat-collector according to claim 5, it is characterized in that: the length of strip catoptron (4) is identical with the length of underboarding (2), and the width of strip catoptron (4) is 25mm～45mm.
7. the catoptron of a kind of trough type solar heat-collector according to claim 6, it is characterized in that: the width of strip catoptron (4) is 35mm.
8. the catoptron of a kind of trough type solar heat-collector according to claim 5 is characterized in that: described underboarding (2) employing steel plate, aluminium-plastic panel, corrosion resistant plate or galvanized iron sheet.
9. the catoptron of a kind of trough type solar heat-collector according to claim 5, it is characterized in that: mirror support (1) is provided with triangle through hole (5).
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| CN2011102388465A CN102298191B (en) | 2011-08-19 | 2011-08-19 | Reflecting mirror of trench type solar thermal collector and forming process thereof |
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| CN2011102388465A CN102298191B (en) | 2011-08-19 | 2011-08-19 | Reflecting mirror of trench type solar thermal collector and forming process thereof |
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| CN102298191B true CN102298191B (en) | 2013-04-03 |
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Families Citing this family (6)
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| CN103576281B (en) * | 2012-07-25 | 2017-02-08 | 北京兆阳光热技术有限公司 | High-precision cambered reflector fixing device |
| CN102944074A (en) * | 2012-10-22 | 2013-02-27 | 上海庆华蜂巢建材有限公司 | Reflecting energy collecting plate |
| CN102998773B (en) * | 2012-12-15 | 2015-06-03 | 大连宏海新能源发展有限公司 | Bonding process of solar condenser lens assembly |
| CN103245089B (en) * | 2013-05-16 | 2015-06-10 | 北京精诚开拓新能源科技有限公司 | Low cost trough type solar concentrator |
| MA39834A (en) * | 2014-05-13 | 2015-11-19 | Massachusetts Inst Technology | Low cost parabolic cylindrical trough for concentrated solar power |
| CN105202776B (en) * | 2015-10-28 | 2017-03-22 | 浙江大明玻璃有限公司 | Encapsulation method of ultrathin micro-arc plane solar reflector |
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| US4038971A (en) * | 1975-10-22 | 1977-08-02 | Bezborodko Joseph A I B | Concave, mirrored solar collector |
| GR73867B (en) * | 1979-02-23 | 1984-05-08 | Vulcan Australia | |
| CN100545693C (en) * | 2007-08-14 | 2009-09-30 | 北京实力源科技开发有限责任公司 | Solar-energy light collector and concentrating method |
| WO2011028742A1 (en) * | 2009-09-02 | 2011-03-10 | 3M Innovative Properties Company | Concentrating solar mirror panel assembly with corrugated stiffener |
| CN101846406A (en) * | 2010-05-17 | 2010-09-29 | 山东威特人工环境有限公司 | Trough type solar heat collector, manufacture method thereof and solar heat utilization system |
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