CN107990571B - Dish formula condensing lens heat absorber support - Google Patents
Dish formula condensing lens heat absorber support Download PDFInfo
- Publication number
- CN107990571B CN107990571B CN201711417003.5A CN201711417003A CN107990571B CN 107990571 B CN107990571 B CN 107990571B CN 201711417003 A CN201711417003 A CN 201711417003A CN 107990571 B CN107990571 B CN 107990571B
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- China
- Prior art keywords
- heat absorber
- section support
- mirror surface
- connecting device
- support
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 116
- 230000003287 optical effect Effects 0.000 claims abstract description 36
- 238000009434 installation Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
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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
- Y02E10/47—Mountings or tracking
-
- 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
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses a disk-type condenser heat absorber support, which comprises a first section support, a last section support, a heat absorber connecting device and a heat absorber mounting platform, wherein the first section support is connected with the last section support; one end of the first section support is connected to the center of the condenser mirror surface, the other end of the first section support is connected with the connecting end of the last section support, the free end of the last section support is provided with a heat absorber mounting platform, the heat absorber is movably mounted on the heat absorber mounting platform through a heat absorber connecting device, the distance between the heat absorber and the condenser mirror surface, the horizontal distance between the heat absorber and the optical axis of the condenser mirror surface and the vertical distance between the heat absorber and the optical axis of the condenser mirror surface are all adjustable, and the condenser mirror can reach an optimal working state; the first section support and the last section support form a certain angle with the optical axis of the mirror surface of the condenser, so that the shielding of the first section support and the last section support on the mirror surface reflected light is reduced.
Description
Technical Field
The invention relates to a dish type condenser heat absorber bracket which is used for dish type photo-thermal power generation.
Background
In the disk type photo-thermal power generation, a power station main body is composed of a disk type condenser array. The dish-type condensing lens comprises a column, a dish-type mirror surface, a heat absorber and a bracket connected with the heat absorber. The mirror surface of the condenser is usually a paraboloid of revolution, and light rays incident parallel to the optical axis are converged to the focal point of the paraboloid. And a heat absorber is arranged at the focus to absorb the concentrated sunlight. Thus, a bracket is required to connect the absorber to the mirror to ensure that the absorber is always in the focal point of the mirror as the mirror rotates following the sun's orientation.
The disc-type collecting mirror reflects incident sunlight and collects the incident sunlight to a focal point. The closer the reflected beam is to the focal point, the smaller the beam aperture. At this time, if the absorber bracket shields the condensed light beam, a great light energy loss is brought. Meanwhile, the light beam directly irradiates the bracket, and the reliability of the bracket can be affected.
The support supports the weight of the absorber and may be affected by wind in different directions. The stent must have sufficient strength to reduce deformation due to external force. Ensuring that the mounting position of the heat absorber is stabilized near the focal point of the mirror surface.
The defects existing at present are mainly as follows: the current dish-type condenser designs do not take into account the absorber support structure in particular. The problems of insufficient strength of the bracket or shielding of the spotlight beam by the bracket may be caused. Because of processing errors of the condenser mirror surface, the bracket and the like, the direct installation of the heat absorber on the bracket may deviate from the condensing focus of the mirror surface. Therefore, a mounting structure of the heat absorber on the bracket with adjustable position is required to be designed.
Disclosure of Invention
The purpose is as follows: in order to overcome the defects in the prior art, the invention provides a dish-type condenser heat absorber bracket.
The technical scheme is as follows: in order to solve the technical problems, the invention adopts the following technical scheme:
a dish formula condensing lens heat absorber support, its characterized in that: the device comprises a first section bracket, a last section bracket, a heat absorber connecting device and a heat absorber mounting platform;
one end of the first section support is connected to the center of the condenser mirror surface, the other end of the first section support is connected with the connecting end of the last section support, the free end of the last section support is provided with a heat absorber mounting platform, the heat absorber is movably mounted on the heat absorber mounting platform through a heat absorber connecting device, and the distance between the heat absorber and the condenser mirror surface, the horizontal distance between the heat absorber and the optical axis of the condenser mirror surface and the vertical distance between the heat absorber and the optical axis of the condenser mirror surface are adjustable; the first section support and the last section support form a certain angle with the optical axis of the mirror surface of the condenser, so that the shielding of the first section support and the last section support on the mirror surface reflected light is reduced.
As the preferred scheme, dish condensing lens heat absorber support, its characterized in that: and the heat absorber installation platform is provided with a connecting device adjusting groove.
Further, the dish formula condensing lens heat absorber support, its characterized in that: the adjusting groove of the connecting device is perpendicular to the direction of the optical axis of the lens surface of the collecting lens.
As the preferred scheme, dish condensing lens heat absorber support, its characterized in that: the heat absorber connecting device comprises a side mounting plate and a bottom mounting foot, wherein the bottom mounting foot is vertically connected to the side mounting plate, a connecting device mounting screw perpendicular to the plane of the bottom mounting foot is arranged on the bottom mounting foot, a heat absorber adjusting groove in the horizontal direction is formed in the side mounting plate, a heat absorber mounting screw is arranged on the side wall of the heat absorber, the heat absorber mounting screw is embedded into the heat absorber adjusting groove of the heat absorber connecting device, and the connecting device mounting screw of the heat absorber connecting device is embedded into the connecting device adjusting groove of the heat absorber mounting platform. The distance between the heat absorber and the condensing lens surface can be adjusted by adjusting the position of the heat absorber mounting screw in the heat absorber adjusting groove. The horizontal distance between the heat absorber and the optical axis of the condenser mirror surface can be adjusted by adjusting the position of the connecting device mounting screw in the connecting device adjusting groove. The vertical distance between the heat absorber and the optical axis of the condenser mirror can be adjusted by adjusting the depth of the connecting device mounting screw inserted into the connecting device adjusting groove.
As the preferred scheme, dish condensing lens heat absorber support, its characterized in that: the bottom mounting feet are vertically connected to the bottom of the side mounting plates.
As the preferred scheme, dish condensing lens heat absorber support, its characterized in that: in order to ensure that the end support does not block the specular reflection light, the included angle between the end support and the optical axis of the condenser mirror is at least A:
the condensing lens is a rotary parabolic mirror, the opening radius is R, and the focal length is f.
In order to ensure that the first section support does not block the specular reflection light, the included angle between the first section support and the optical axis of the condenser mirror is at least B:
the width of the bottom of the upright post slot of the condensing lens mirror surface is D, the width of the bottom edge of the first section of support is D, and the initial end of the first section of support is connected to the front c position of the center of the condensing lens mirror surface.
As the preferred scheme, dish condensing lens heat absorber support, its characterized in that: the sections of the first section support and the last section support are triangular. Further, the dish formula condensing lens heat absorber support, its characterized in that: the first section support and the last section support comprise three chords and connecting rods, the three chords are arranged at the top positions of the sections, and the chords are connected with each other through the connecting rods to form a truss structure.
The support uses the truss structure of triangle-shaped cross-section, can reduce the support to the specular reflection light shielding of furthest when guaranteeing structural strength.
The beneficial effects are that: the dish-type condenser heat absorber bracket provided by the invention has the following advantages: 1. the support is divided into two sections, and through design calculation, the shielding of the support on specular reflection light can be reduced or completely eliminated. 2. The support uses the truss structure of triangle-shaped cross-section, can reduce the support to the specular reflection light shielding of furthest when guaranteeing structural strength. Other cross-sectional shapes can achieve the same structural effect of the embodiment, but when the width of the support is the same, a larger included angle is formed between the first support and the optical axis of the mirror surface so as to realize no shielding. 3. The bracket has the function of adjusting the position of the heat absorber, and can adjust the positions of the heat absorber and the focus of the mirror surface by three degrees of freedom, namely the distance between the heat absorber and the mirror surface, the horizontal distance between the heat absorber and the optical axis of the mirror surface and the vertical distance between the heat absorber and the optical axis of the mirror surface. The condenser can reach the optimal working state.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of a first leg and a last leg;
fig. 3 and 4 are schematic structural views of a heat sink connection device;
FIG. 5 is a schematic diagram of an assembly of a heat sink mounting platform, a heat sink connection apparatus, and a heat sink;
fig. 6 and 7 are schematic diagrams of calculating the included angle between the first-stage bracket and the final-stage bracket and the optical axis of the mirror surface respectively;
in the figure: the heat absorber comprises a first section support 1, a last section support 2, a heat absorber mounting platform 3, a connecting device adjusting groove 31, a heat absorber connecting device 4, a side mounting plate 41, a bottom mounting foot 42, a connecting device mounting screw 43, a heat absorber adjusting groove 44, a condensing lens surface 5, a heat absorber 6 and a heat absorber mounting screw 61.
Detailed Description
The invention will be further described with reference to specific examples.
As shown in fig. 1 to 4, a dish-type condenser heat absorber support comprises a first section support 1, a last section support 2, a heat absorber mounting platform 3 and a heat absorber connecting device 4. The heat sink connection means 4 is for connecting the heat sink to the heat sink mounting platform 3. One end of the first section of support 1 is connected to the center of the condenser mirror surface 5, the other end of the first section of support is connected to one end of the last section of support 2, the tail of the last section of support 2 is provided with a heat absorber mounting platform 3, a heat absorber 6 is movably mounted on the heat absorber mounting platform 3 through a heat absorber connecting device 4, and the distance between the heat absorber 6 and the condenser mirror surface 5, the horizontal distance between the heat absorber and the optical axis of the condenser mirror surface and the vertical distance between the heat absorber and the optical axis of the condenser mirror surface are adjustable; the first section support and the last section support form a certain angle with the optical axis of the mirror surface of the condenser, so that the shielding of the first section support and the last section support on the mirror surface reflected light is reduced.
As shown in fig. 2, the cross sections of the first section bracket 1 and the last section bracket 2 are triangular. The three chord members are arranged at the top positions of the sections, and connecting rods are connected with each other to form a truss structure. The first section support and the last section support form a specific angle with the optical axis of the lens surface of the condenser.
As shown in fig. 3 and 4, the absorber connecting device 4 includes a side mounting plate 41 and two bottom mounting feet 42, the bottom mounting feet 42 being perpendicular to the side mounting plate 41. The side mounting plate 41 is provided with a horizontally oriented absorber adjustment slot 44. The bottom mounting feet have attachment means mounting screws 43 perpendicular to the plane of the bottom mounting feet.
As shown in fig. 5, the heat absorber mounting platform 3 is mounted on the tail of the end bracket 2. The absorber mounting platform 3 is provided with a connecting device adjusting groove 31 perpendicular to the optical axis direction of the condenser mirror surface. Two absorber mounting screws 61 are provided on each of the left and right side walls of the absorber 6. In the mounting, the absorber mounting screw 61 is first fitted into the absorber adjustment groove 44 of the absorber connecting device. The absorber attachment mounting screw 43 is then inserted into the absorber attachment mounting platform attachment adjustment slot 31.
The distance between the heat absorber and the condensing lens surface can be adjusted by adjusting the position of the heat absorber mounting screw in the heat absorber adjusting groove. The horizontal distance between the heat absorber and the optical axis of the condenser mirror surface can be adjusted by adjusting the position of the connecting device mounting screw in the connecting device adjusting groove. The vertical distance between the heat absorber and the optical axis of the condenser mirror can be adjusted by adjusting the depth of the connecting device mounting screw inserted into the connecting device adjusting groove.
As shown in fig. 7, for a rotating parabolic mirror, if the opening radius is R, the focal length is f. In order to ensure that the end support does not block specular reflection light, the included angle between the end support and the optical axis of the mirror is at least A:
because the radius of the opening of the reflecting light spot is small when approaching the heat absorber, the energy density is extremely high, and the end support can not shade the reflecting light.
To facilitate the mounting of the condensing lens upright, the lower portion of the condensing lens surface is generally provided with an upright slot, as shown in fig. 6. If the width of the bottom of the upright post slot of the condensing lens mirror surface is D, the width of the bottom edge of the first section of support is D, and the initial end of the first section of support is connected to the front c of the center of the condensing lens mirror surface. In order to ensure that the first section support does not block specular reflection light, the included angle between the first section support and the optical axis of the mirror surface is at least B:
when the included angle between the first section support and the optical axis of the mirror surface is smaller than theta, the first section support starts to shield reflected light on two sides of the upright post groove on the lower portion of the mirror surface of the condensing lens. In order to reduce the included angle between the first-section support and the optical axis of the mirror surface, the first-section support can be allowed to shield the mirror surface reflected light to a certain extent.
The method for calculating the included angle between the bracket and the optical axis of the mirror surface is described as follows.
For a rotating parabolic mirror, if the opening radius is R, the focal length is f. Parabolic static edge height with opening radius RTo ensure that the end brackets do not block the specular light, it is desirable that the end brackets be parallel to the specular edge light, as shown in FIG. 7. Therefore, the calculation formula that the included angle between the end section bracket and the optical axis of the mirror surface is at least A is as follows:
to facilitate the mounting of the condensing lens upright, the lower portion of the condensing lens surface is generally provided with an upright slot, as shown in fig. 6. If the width of the bottom of the grooving of the mirror surface upright post is D, the width of the bottom edge of the first section of bracket is D, and the initial end of the first section of bracket is connected to the front c part of the center of the mirror surface of the condensing lens. In order to ensure that the first leg does not block the specularly reflected light, i.e. that the light reflected from the edges of the specular groove in fig. 6 is not blocked by the first leg. In critical state, the first section support is just intersected with the edge of the mirror surface grooves on two sides in a reflection mode. From triangle similarity relations Therefore, the calculation formula of the included angle between the first section of bracket and the optical axis of the mirror surface is at least B as follows:
the foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (7)
1. A dish formula condensing lens heat absorber support, its characterized in that: the device comprises a first section bracket, a last section bracket, a heat absorber connecting device and a heat absorber mounting platform;
one end of the first section support is connected to the center of the condenser mirror surface, the other end of the first section support is connected with the connecting end of the last section support, the free end of the last section support is provided with a heat absorber mounting platform, the heat absorber is movably mounted on the heat absorber mounting platform through a heat absorber connecting device, and the distance between the heat absorber and the condenser mirror surface, the horizontal distance between the heat absorber and the optical axis of the condenser mirror surface and the vertical distance between the heat absorber and the optical axis of the condenser mirror surface are adjustable; the first section support and the last section support form a certain angle with the optical axis of the mirror surface of the condenser, so that the shielding of the first section support and the last section support on the mirror surface reflected light is reduced;
the included angle between the end section support and the optical axis of the lens face of the condenser is at least A:
the condensing lens is a rotary parabolic mirror, the opening radius is R, and the focal length is f;
the lower part of the condensing lens mirror surface is provided with a column slot, the width of the bottom of the column slot of the mirror surface is D, the width of the bottom edge of the first section support is D, the starting end of the first section support is connected to the front c part of the center of the condensing lens mirror surface, and the included angle between the first section support and the optical axis of the condensing lens mirror surface is at least B:
2. the dish-type condenser heat sink holder of claim 1, wherein: and the heat absorber installation platform is provided with a connecting device adjusting groove.
3. The dish-type condenser heat sink holder of claim 2, wherein: the adjusting groove of the connecting device is perpendicular to the direction of the optical axis of the lens surface of the collecting lens.
4. The dish-type condenser heat sink holder of claim 2, wherein: the heat absorber connecting device comprises a side mounting plate and a bottom mounting foot, wherein the bottom mounting foot is vertically connected to the side mounting plate, a connecting device mounting screw perpendicular to the plane of the bottom mounting foot is arranged on the bottom mounting foot, a heat absorber adjusting groove in the horizontal direction is formed in the side mounting plate, a heat absorber mounting screw is arranged on the side wall of the heat absorber, the heat absorber mounting screw is embedded into the heat absorber adjusting groove of the heat absorber connecting device, and the connecting device mounting screw of the heat absorber connecting device is embedded into the connecting device adjusting groove of the heat absorber mounting platform.
5. The dish-type condenser heat sink holder of claim 4, wherein: the bottom mounting feet are vertically connected to the bottom of the side mounting plates.
6. The dish-type condenser heat sink bracket as claimed in any one of claims 1-5, wherein: the sections of the first section support and the last section support are triangular.
7. The dish-type condenser heat sink holder of claim 6, wherein: the first section support and the last section support comprise three chords and connecting rods, the three chords are arranged at the top positions of the sections, and the chords are connected with each other through the connecting rods to form a truss structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711417003.5A CN107990571B (en) | 2017-12-25 | 2017-12-25 | Dish formula condensing lens heat absorber support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711417003.5A CN107990571B (en) | 2017-12-25 | 2017-12-25 | Dish formula condensing lens heat absorber support |
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| Publication Number | Publication Date |
|---|---|
| CN107990571A CN107990571A (en) | 2018-05-04 |
| CN107990571B true CN107990571B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711417003.5A Active CN107990571B (en) | 2017-12-25 | 2017-12-25 | Dish formula condensing lens heat absorber support |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275760A (en) * | 2015-11-25 | 2016-01-27 | 武汉理工大学 | Grid-connected type household disc type Stirling solar thermal power generation system and control method |
| CN205450421U (en) * | 2016-03-18 | 2016-08-10 | 东方宏海新能源科技发展有限公司 | Dish formula tracker focusing anchor clamps and focusing system |
| WO2017024974A1 (en) * | 2015-08-11 | 2017-02-16 | 中国科学技术大学先进技术研究院 | Distributed light condensation/splitting-based comprehensive solar energy utilization system |
| CN106989526A (en) * | 2017-04-14 | 2017-07-28 | 天津清芸主力能源科技有限公司 | A kind of dish-style condenser is in line focus calibrating installation |
| CN206656504U (en) * | 2017-04-10 | 2017-11-21 | 天津清芸主力能源科技有限公司 | A kind of disc type condensation system cavity type heat absorber heat-insulation system |
-
2017
- 2017-12-25 CN CN201711417003.5A patent/CN107990571B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017024974A1 (en) * | 2015-08-11 | 2017-02-16 | 中国科学技术大学先进技术研究院 | Distributed light condensation/splitting-based comprehensive solar energy utilization system |
| CN105275760A (en) * | 2015-11-25 | 2016-01-27 | 武汉理工大学 | Grid-connected type household disc type Stirling solar thermal power generation system and control method |
| CN205450421U (en) * | 2016-03-18 | 2016-08-10 | 东方宏海新能源科技发展有限公司 | Dish formula tracker focusing anchor clamps and focusing system |
| CN206656504U (en) * | 2017-04-10 | 2017-11-21 | 天津清芸主力能源科技有限公司 | A kind of disc type condensation system cavity type heat absorber heat-insulation system |
| CN106989526A (en) * | 2017-04-14 | 2017-07-28 | 天津清芸主力能源科技有限公司 | A kind of dish-style condenser is in line focus calibrating installation |
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| CN107990571A (en) | 2018-05-04 |
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