CN201811460U - Trough type solar thermal collector and solar thermal utilization system - Google Patents

Trough type solar thermal collector and solar thermal utilization system Download PDF

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Publication number
CN201811460U
CN201811460U CN2010201922009U CN201020192200U CN201811460U CN 201811460 U CN201811460 U CN 201811460U CN 2010201922009 U CN2010201922009 U CN 2010201922009U CN 201020192200 U CN201020192200 U CN 201020192200U CN 201811460 U CN201811460 U CN 201811460U
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China
Prior art keywords
collector
trough type
type solar
solar heat
reflecting surface
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Expired - Lifetime
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CN2010201922009U
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Chinese (zh)
Inventor
李文
张凤学
黄卫东
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SHANDONG QIWEITE SOLAR TECHNOLOGY CO., LTD.
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SHANDONG WEITE LABOUR ENVIRONMENT CO Ltd
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Priority to CN2010201922009U priority Critical patent/CN201811460U/en
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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

Abstract

The utility model discloses a trough type solar thermal collector comprising a collector tube, a reflector, a reflector support piece and a sun tracking system, wherein the reflector comprises a reflecting surface and reflecting surface support piece; an arc-shaped reflecting surface is adhered on the reflecting surface support piece; the sun tracking system is used for ensuring that the sunlight is focused on the collector tube by the reflector; and the reflecting surface support piece is made of a plurality of sticks. The utility model also discloses a solar thermal utilization system using the trough type solar thermal collector.

Description

Trough type solar heat-collector and Solar Energy Heat Utilization System
Technical field
The utility model relates to a kind of solar thermal collector, more specifically relates to a kind of trough type solar heat-collector with reflector.The utility model also relates to a kind of Solar Energy Heat Utilization System of using this trough type solar heat-collector.
Background technology
Trough type solar heat-collector is a kind ofly to absorb solar radiation and with the thermal energy transfer that the produces device to heat-transfer working medium, be form various in the critical component of high temperature solar heat utilization systems.Trough type solar heat-collector generally comprises: thermal-collecting tube, reflector, sun locating system and bracing or strutting arrangement.Wherein reflector forms by the flute profile of focus type is parabolic, and thermal-collecting tube is positioned on the paraboloidal focal line, and sun locating system is used to guarantee that reflector accurately aims at the sun and sunshine is reflexed to thermal-collecting tube.
Trough type solar heat-collector of the prior art generally adopts the method manufacturing of global formation optically focused cambered surface (perhaps parabolic), yet according to the cambered surface forming technique cost height of this manufacture method, and the cambered surface easy deformation of global formation, poor stability.Therefore need seek a kind of low cost and cambered surface is not allowed yielding trough type solar heat-collector manufacturing technology.
The utility model content
A purpose of the present utility model provides a kind of novel trough type solar heat-collector and manufacture method thereof, is used to solve one or more technical problem of the prior art.
Comprise thermal-collecting tube, reflector, reflector holder and sun locating system according to trough type solar heat-collector of the present utility model.Described reflector comprises reflecting surface and reflecting surface strut member, and described reflecting surface is attached on the described reflecting surface strut member, described reflecting surface be shaped as arc.Described sun locating system is used to guarantee that described reflector focuses sunshine is at described thermal-collecting tube.Wherein, described reflecting surface strut member is made of a plurality of bars.
According on the other hand of the present utility model, the ratio of the length of above-mentioned bar and cross-sectional shape girth was more than or equal to 5: 1.
According on the other hand of the present utility model, the length direction of above-mentioned bar is along the axis direction of described thermal-collecting tube.
According on the other hand of the present utility model, the width of above-mentioned bar is less than or equal to 100 millimeters.
According on the other hand of the present utility model, the combination of above-mentioned bar can bend to cambered surface to constitute described reflecting surface strut member.
According on the other hand of the present utility model, above-mentioned bar has hollow structure.
According on the other hand of the present utility model, above-mentioned reflector holder comprises the support portion of an arc, is used to limit the shape of described reflecting surface strut member.
According on the other hand of the present utility model, the support portion of above-mentioned reflector holder is a draw-in groove.
According on the other hand of the present utility model, the cross sectional shape of above-mentioned draw-in groove comprises " worker " font, U-shaped or T shape.
According on the other hand of the present utility model, above-mentioned reflecting surface is made of the strip reverberation of a plurality of width less than the thermal-collecting tube diameter.
According on the other hand of the present utility model, above-mentioned reflecting surface is the monoblock type reverberation attached to the flexibility on the reflecting surface strut member.
According on the other hand of the present utility model, above-mentioned monoblock type reverberation comprises that thickness is less than or equal to 3 millimeters glass mirror, reflectance coating, aluminium mirror, bronze mirror or stainless steel mirror.
According on the other hand of the present utility model, above-mentioned arc comprises parabola shaped.
According on the other hand of the present utility model, above-mentioned sun locating system comprises drive system and control system, and described drive system comprises oil cylinder and hydraulic power unit, and described control system comprises heat collector position sensor and logic controller.
According on the other hand of the present utility model, single above-mentioned hydraulic power unit can drive a plurality of oil cylinders respectively, the heat collector row that each oil cylinder can drive single described trough type solar heat-collector or is in series by a plurality of described trough type solar heat-collectors.
According on the other hand of the present utility model, described heat collector position sensor comprises rotary encoder, obliquity sensor or grating chi.
According on the other hand of the present utility model, carry out signal from described heat collector position sensor signal with frame for movement and amplify, be used to improve the settled date precision of described trough type solar heat-collector.
According on the other hand of the present utility model, described frame for movement is made of the drive of different-diameter.
The utility model also provides a kind of Solar Energy Heat Utilization System that comprises above-mentioned trough type solar heat-collector, and this Solar Energy Heat Utilization System can comprise solar refrigeration and heating system, solar energy domestic water system, solar heat power generation system etc.
According to the utility model,, the distortion that global formation optically focused cambered surface brings and the problem of poor stability have been avoided because the reflector of trough type solar heat-collector is spliced by a plurality of bars.And bar can be made by modes such as extrusion modlings, need be in the global formation technology equipment and the mould of required costliness, can significantly reduce manufacturing cost.
Description of drawings
Fig. 1 shows a general assembly schematic diagram according to trough type solar heat-collector of the present utility model.
Fig. 2 is the partial enlarged view at A place among Fig. 1.
Fig. 3 is the local structure schematic diagram according to reflector of the present utility model.
Fig. 4 is the shape schematic diagram of the reflector according to an embodiment of the utility model when not being installed on the reflector holder.
Fig. 5 is the schematic diagram of reflector shown in Figure 4 shape when being installed on the reflector holder.
Fig. 6 is the schematic diagram of the shape of the reflector according to another embodiment of the utility model when being installed on the reflector holder.
Fig. 7 is the partial enlarged view at the reflector B place of Fig. 6.
Fig. 8-19 shows the part type according to the cross sectional shape of the bar of reflecting surface strut member of the present utility model.
Figure 20 utilizes according to the solar airconditioning of trough type solar heat-collector of the present utility model and the schematic diagram of heating system or solar energy domestic water system.
Figure 21 is the schematic diagram that utilizes according to the solar heat power generation system of trough type solar heat-collector of the present utility model.
The specific embodiment
Engaging accompanying drawing below describes in detail according to the specific embodiment of the present utility model.By the detailed description that is hereinafter provided also in conjunction with the accompanying drawings, other applications of the present utility model will become clearer.Should be appreciated that these are described in detail and specific embodiment only is to be used for explaining rather than being used for limiting scope of the present utility model.
Fig. 1 shows the schematic diagram according to the trough type solar heat-collector 1 of an embodiment of the utility model.As shown in Figure 1, can comprise according to trough type solar heat-collector 1 of the present utility model: thermal-collecting tube 10, reflector 20, reflector holder 30 and sun locating system 40.
Thermal-collecting tube 10 shown in Figure 1 can be a vacuum heat collection pipe, and for example all-glass vacuum thermal-collecting tube, hot pipe type vacuum heat collection pipe etc. also can be the thermal-collecting tubes of other types.
Reflector 20 shown in Figure 1 is installed on the reflector holder 30, and reflector 20 is the flute profile parabolic shape.As shown in Figure 3, reflector 20 comprises a reflecting surface 21 and the reflecting surface strut member 22 that is made of a plurality of elongated bars 23.Because reflecting surface strut member 22 can be spliced the flute profile parabolic shape shown in reflecting surface strut member 22 flexible one-tenth Fig. 5 and 6 by a plurality of bars 23.Shown in Fig. 1,3,4,5, the length direction of bar 23 is along the axis direction (the y direction among Fig. 3) of thermal-collecting tube 10, the width of bar 23 is along the tangential direction (the x direction among Fig. 3) of reflecting surface 21, and the thickness direction of bar is the normal direction (the z direction among Fig. 3) of reflecting surface.The ratio of the length of bar 23 and cross-sectional shape girth is preferably greater than or equals 5: 1, more preferably greater than or equal 20: 1, more preferably greater than or equal 30: 1.The width of bar 23 preferably is less than or equal to 100 millimeters, more preferably between 3 to 50 millimeters, more preferably between 5 to 20 millimeters.
The cross sectional shape of bar 23 shown in Figure 3 is the rectangle of hollow, yet the shape of bar of the present utility model is not limited thereto.Fig. 8-19 shows some examples of the cross sectional shape that can be applicable to bar of the present utility model, and these shapes comprise circle, square, rectangle, U-shaped, " mountain " font, " worker " font and other cross sectional shapes that jog is arranged at side.The shape of the existing hollow of cross sectional shape of the bar shown in the figure (shown in Fig. 8-17) also has the cross sectional shape (shown in Figure 18-19) of non-hollow.The utility model preferably adopts the cross sectional shape of hollow, because this cross sectional shape can alleviate the weight of bar, the intensity of increase bar, and can reduce the distortion of the reflecting surface strut member that is made of bar thus.
Reflecting surface 20 shown in Fig. 3,4 and 5 is the monoblock type reverberation of single flexible, its by bonding or other modes attached on the reflecting surface strut member 22 that constitutes by bar 23.The monoblock type reverberation is preferably glass mirror, reflectance coating, aluminium mirror, bronze mirror or the stainless steel mirror that thickness is less than or equal to 3 millimeters.Preferably low iron glass mirror of above-mentioned glass mirror or ultra-clear glasses mirror.Yet shown in Fig. 6 and 7, reflecting surface 20 also can be made of a plurality of strip reverberations.In the embodiment shown in Fig. 6 and 7, preferably the width of each strip reverberation is less than the diameter of thermal-collecting tube 10.The width of each strip reverberation can be identical with the width of bar 23, also can be inequality.
As illustrated in fig. 1 and 2, trough type solar heat-collector 1 also comprises the reflector holder 30 that is used for supporting reflex device 20.Reflector holder 30 comprises the arc of the shape that is used to limit flexible reflector 20 or parabola shaped support portion 31.In Fig. 1 and 2, support portion 31 is the arc or the parabola shaped draw-in groove at the position that is arranged on reflector holder 30 and contacts with reflector.The cross sectional shape that partial enlarged view among Fig. 2 shows draw-in groove is " worker " font, however the shape of draw-in groove be not limited thereto, also can be U-shaped or T shape or other shapes.Also be not limited to the draw-in groove form according to support portion 31 of the present utility model, but can comprise any supporting form that the shape of reflector 20 can be defined as parabolic shape.
In trough type solar heat-collector shown in Figure 11, four less reflectors 20 have been formed a bigger reflector, yet in the utility model, the compound mode of reflector is not limited thereto, it can comprise more multiple reflection device, also can be made of single reflector on the contrary.In addition, a plurality of trough type solar heat-collectors 1 also can make up by series connection or parallel way.
Sun locating system 40 shown in Figure 1 comprises drive system (not shown) and control system (not shown), described drive system comprises oil cylinder (not shown) and hydraulic power unit (not shown), and described control system comprises heat collector position sensor (not shown) and logic controller (not shown).Wherein logic controller can be according to longitude and latitude and the date and the position that calculates the sun constantly of locality, drive system can be regulated trough type solar heat-collector according to the positional information of the sun that calculates, make the flute profile parabola can accurately aim at the sun, the incident light with the sun focuses on the paraboloidal focal line by reflector thus.
Preferably, single above-mentioned hydraulic power unit can drive a plurality of oil cylinders respectively, the heat collector row that each oil cylinder can drive single described trough type solar heat-collector or is in series by a plurality of described trough type solar heat-collectors.Preferably, the heat collector position sensor comprises rotary encoder, obliquity sensor or grating chi.Preferably, can carry out signal with frame for movement from the signal of described heat collector position sensor and amplify, be used to improve the settled date precision of described trough type solar heat-collector.Preferably, above-mentioned frame for movement is made of the drive with different-diameter.
Above-mentioned trough type solar heat-collector 1 can be made as follows: a plurality of bars 23 that form reflecting surface strut member 22; A plurality of bars 23 are spliced into reflecting surface strut member 22; With reflecting surface 21 attached on the reflecting surface strut member 22 that constitutes by a plurality of bars 23 to form reflector 20; Reflector 20 is installed on the support portion 31 of arc of reflector holder 30, the support portion 31 of the arc by reflector holder 30 is defined as the arcuate shape consistent with support portion 31 with the shape of reflector 20; Thermal-collecting tube 10 is positioned on the focal line of cambered surface of reflector 20; Sun locating system 40 is installed.
In the step of a plurality of bars 23 of above-mentioned formation reflecting surface strut member 22, can form bar 23 by extruding forming method with specific sectional shape.Above-mentioned with reflecting surface 21 attached to the reflecting surface strut member 22 that constitutes by a plurality of bars 23 on the step that forms reflector 20 in, can be by bonding, crimping or other connected modes with reflecting surface 21 attached on the reflecting surface strut member 22.
Figure 20 shows solar refrigeration heating and the domestic water system of a utilization according to trough type solar heat-collector of the present utility model.As shown in figure 20, this solar refrigeration heating and domestic water system comprise 41, one air-conditioner hosts of a heat collector 42, heating and heat exchange equipment 43, domestic hot-water's heat storage can 44, a thermal source pump 45 and an expansion drum 46.Heat collector 41 is collected solar energy and is heated heat-transfer working medium, heat-transfer working medium is supplied with air-conditioner host 42 and heating and heat exchange equipment 43 respectively after expansion drum 46 bufferings, flow through after heat-transfer working medium does work in air-conditioner host 42 and heating and heat exchange equipment 43 domestic hot-water's heat storage can 44 and thermal source pump 45 return heat collector 41 then and finish a circulation.Air-conditioner host 42 all is connected with a return pipe b with a feed pipe a with heating and heat exchange equipment 43.
Figure 21 shows the solar heat power generation system of a utilization according to trough type solar heat-collector of the present utility model.As shown in figure 21, this solar heat power generation system comprises a heat collector 51, heat generating heat storage can 52, a thermal source pump 53 and an expansion drum 54.Heat collector 51 is collected solar energy and is heated heat-transfer working medium, heat-transfer working medium is sent into heat generating heat storage can 52 after expansion drum 54 bufferings, the heat that heat generating heat storage can 52 stores produces steam and promotes the generating of Turbo-generator Set (not shown) by the heat exchanger (not shown) subsequently.Heat-transfer working medium after the acting returns heat collector 51 and finishes a circulation through thermal source pump 53.
Figure 20,21 only shows utilization some embodiment according to the Solar Energy Heat Utilization System of trough type solar heat-collector of the present utility model, but Solar Energy Heat Utilization System is not limited to these embodiment shown in the figure.

Claims (20)

1. trough type solar heat-collector, comprise thermal-collecting tube, reflector, reflector holder and sun locating system, described reflector comprises reflecting surface and reflecting surface strut member, described reflecting surface is attached on the described reflecting surface strut member, described reflecting surface be shaped as arc, described sun locating system is used to guarantee that described reflector focuses sunshine at described thermal-collecting tube, is characterized in that, described reflecting surface strut member is made of a plurality of bars.
2. trough type solar heat-collector as claimed in claim 1 is characterized in that, the ratio of the length of described bar and cross-sectional shape girth was more than or equal to 5: 1.
3. trough type solar heat-collector as claimed in claim 1 is characterized in that the length direction of described bar is along the axis direction of described thermal-collecting tube.
4. trough type solar heat-collector as claimed in claim 2 is characterized in that, the width of described bar is less than or equal to 100 millimeters.
5. trough type solar heat-collector as claimed in claim 1 is characterized in that, described bar is a hollow structure.
6. trough type solar heat-collector as claimed in claim 1 is characterized in that, the combination of described bar can bend to cambered surface to constitute described reflecting surface strut member.
7. trough type solar heat-collector as claimed in claim 1 is characterized in that described reflector holder comprises the support portion of an arc, is used to limit the shape of described reflecting surface strut member.
8. trough type solar heat-collector as claimed in claim 7 is characterized in that, the support portion of described reflector holder is a draw-in groove.
9. trough type solar heat-collector as claimed in claim 8 is characterized in that, the cross sectional shape of described draw-in groove comprises " worker " font, U-shaped or T shape.
10. trough type solar heat-collector as claimed in claim 1 is characterized in that, described reflecting surface is made of the strip reverberation of a plurality of width less than the thermal-collecting tube diameter.
11. trough type solar heat-collector as claimed in claim 1 is characterized in that, described reflecting surface is the monoblock type reverberation attached to the flexibility on the reflecting surface strut member.
12. trough type solar heat-collector as claimed in claim 11 is characterized in that, described monoblock type reverberation comprises that thickness is less than or equal to 3 millimeters glass mirror, reflectance coating, aluminium mirror, bronze mirror or stainless steel mirror.
13., it is characterized in that described arc comprises parabola shaped as each described trough type solar heat-collector among the claim 1-12.
14. as each described trough type solar heat-collector among the claim 1-12, it is characterized in that, described sun locating system comprises drive system and control system, and described drive system comprises oil cylinder and hydraulic power unit, and described control system comprises heat collector position sensor and logic controller.
15. trough type solar heat-collector as claimed in claim 14, it is characterized in that, single described hydraulic power unit can drive a plurality of oil cylinders respectively, the heat collector row that each oil cylinder can drive single described trough type solar heat-collector or is in series by a plurality of described trough type solar heat-collectors.
16. trough type solar heat-collector as claimed in claim 14 is characterized in that, described heat collector position sensor comprises rotary encoder, obliquity sensor or grating chi.
17. trough type solar heat-collector as claimed in claim 16 is characterized in that, carries out signal from described heat collector position sensor signal with frame for movement and amplifies, and is used to improve the settled date precision of described trough type solar heat-collector.
18. trough type solar heat-collector as claimed in claim 17 is characterized in that, described frame for movement is made of the different drive of diameter.
19. a Solar Energy Heat Utilization System is characterized in that, comprises as each described trough type solar heat-collector among the claim 1-18.
20. Solar Energy Heat Utilization System as claimed in claim 19 is characterized in that, described Solar Energy Heat Utilization System comprises solar refrigeration and heating system, solar energy domestic water system, solar heat power generation system.
CN2010201922009U 2010-05-17 2010-05-17 Trough type solar thermal collector and solar thermal utilization system Expired - Lifetime CN201811460U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102840692A (en) * 2012-09-26 2012-12-26 山东威特人工环境有限公司 Installation method of slot-type solar heat collector
CN102840641A (en) * 2012-09-26 2012-12-26 山东威特人工环境有限公司 Solar energy direct-driven absorption-type air conditioner system
CN103335418A (en) * 2013-07-24 2013-10-02 中国科学院工程热物理研究所 Trough type solar thermal collector with variable lens area
CN103912997A (en) * 2014-03-30 2014-07-09 山东耀国光热科技股份有限公司 Intermediate-temperature heat collector with capillary guide pipes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102840692A (en) * 2012-09-26 2012-12-26 山东威特人工环境有限公司 Installation method of slot-type solar heat collector
CN102840641A (en) * 2012-09-26 2012-12-26 山东威特人工环境有限公司 Solar energy direct-driven absorption-type air conditioner system
CN103335418A (en) * 2013-07-24 2013-10-02 中国科学院工程热物理研究所 Trough type solar thermal collector with variable lens area
CN103335418B (en) * 2013-07-24 2014-12-03 中国科学院工程热物理研究所 Trough type solar thermal collector with variable lens area
CN103912997A (en) * 2014-03-30 2014-07-09 山东耀国光热科技股份有限公司 Intermediate-temperature heat collector with capillary guide pipes

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