CN204128207U - A kind of light and heat collection unit and device - Google Patents
A kind of light and heat collection unit and device Download PDFInfo
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- CN204128207U CN204128207U CN201420531843.XU CN201420531843U CN204128207U CN 204128207 U CN204128207 U CN 204128207U CN 201420531843 U CN201420531843 U CN 201420531843U CN 204128207 U CN204128207 U CN 204128207U
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- light
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- heat collection
- collection unit
- glass bushing
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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
- Y02E10/44—Heat exchange systems
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Abstract
The utility model provides a kind of light and heat collection unit and device, and wherein light and heat collection unit comprises inner glass bushing in vacuum state and is arranged on the heat collection component of inside of glass bushing; Heat collection component comprises thermal-collecting tube and for light being reflexed to the light gathering reflector assembly on thermal-collecting tube.The utility model additionally provides a kind of light-condensing and heat-collecting device, utilizes light and heat collection unit of the present utility model and device that the reflecting layer of light gathering reflector assembly can be avoided oxidized, improves the light gathering efficiency of light gathering reflector assembly, thus improve the collecting efficiency of thermal-collecting tube.
Description
Technical field
the utility model relates to a kind of field of solar heat, particularly relates to a kind of light and heat collection unit and device.
Background technology
solar energy heat utilization system comprises speculum field and heat collection unit, and solar energy, by the heat collection unit of sunshine reflect focalization above speculum field, is converted to heat energy or electric energy by this heat collection unit by speculum field.
for improving the focusing ratio of heat collection unit, maintaining the operational efficiency of high temperature, at the top of thermal-collecting tube, secondary reflection device being installed, secondary reflection device and thermal-collecting tube composition heat collection unit.Speculum is followed the tracks of the sun and is also converged the heat collection unit be positioned at above speculum field, and wherein, a part of sunlight directly converges on the thermal-collecting tube in heat collection unit, and another part again focuses on thermal-collecting tube after secondary reflection device reflection.
the structure of the heat collection unit adopted in current solar energy heat utilization system as shown in Figure 1, this heat collection unit comprises thermal-collecting tube 11 and secondary reflection device 12, wherein, for reducing the heat exchange of thermal-collecting tube 11 and external environment, at the outer setting shell 13 of secondary reflection device 12, at the light entrance place of secondary reflection device 12, transparent cover plate 15 is set, and when not affecting secondary reflection device 12 optically focused, at the enclosure interior fill insulant material 14 that shell 13 and transparent cover plate 15 are formed.
because there is air this kind of heat collection unit middle shell inside, in Long-Time Service process, easily cause reflecting layer oxidized gradually, decrease the light gathering efficiency of secondary reflection device, reduce the collecting efficiency of thermal-collecting tube.
Summary of the invention
the purpose of this utility model is to provide a kind of light and heat collection unit and device, avoids the reflecting layer of light gathering reflector assembly oxidized, improves the light gathering efficiency of light gathering reflector assembly.
the utility model provides a kind of light and heat collection unit, by thermal-collecting tube, light gathering reflector arrangement of components in the glass bushing that inside is vacuum state, avoids the reflecting layer of light gathering reflector assembly oxidized, improves the light gathering efficiency of light gathering reflector assembly.
the utility model additionally provides a kind of light-condensing and heat-collecting device, avoids the reflecting layer of light gathering reflector assembly oxidized, improves the light gathering efficiency of light gathering reflector assembly, thus improves the collecting efficiency of thermal-collecting tube.
a kind of light and heat collection unit that the utility model provides, comprises inner glass bushing in vacuum state and is arranged on the heat collection component of inside of described glass bushing; Described heat collection component comprise thermal-collecting tube and for
light is reflexed to the light gathering reflector assembly on described thermal-collecting tube.
further, light and heat collection unit of the present utility model also comprises at least one heat screen of the inside being arranged on described glass bushing, and described heat screen arranges around described heat collection component and forms breach at the light inlet of described light gathering reflector assembly.
preferably, described heat screen is multiple, and multiple described heat screen is sheathed successively from the inside to the outside in the inside of described glass bushing.
further, between two adjacent described heat screens, the first insulation material is set.
further, described glass bushing outer wall arranges the second heat-insulation layer, and described second heat-insulation layer forms breach at the light inlet of described light gathering reflector assembly.
further, described glass bushing inwall arranges reflecting layer.
further, described glass bushing with vacuumize component and be connected.
preferably, described light gathering reflector assembly is compound parabolic concentrator.
further preferably, described light gathering reflector assembly is many catadioptrics face that at least two plane reflection faces are formed.
further, described many catadioptrics face is spliced to form at least two flat glass mirrors.
a kind of light-condensing and heat-collecting device that the utility model provides, comprises the light and heat collection unit described in above-mentioned any one that the reflected light path of speculum and described speculum is arranged.
compared with prior art, the light and heat collection unit that the utility model provides, by by light gathering reflector arrangement of components in inside being the inside of glass bushing of vacuum state, the reflecting layer avoiding light gathering reflector assembly is oxidized, improve the light gathering efficiency of light gathering reflector assembly, thus improve the collecting efficiency of thermal-collecting tube.
in further technical scheme, by arranging heat screen in glass bushing inside, and form breach at the light inlet of the light gathering reflector assembly of correspondence, under the condition not affecting light gathering reflector assembly optically focused, insulation can be implemented to thermal-collecting tube, reduce thermal-collecting tube and the heat radiation of glass bushing inside and the heat radiation of thermal-collecting tube and external environment condition more, thus the heat loss of minimizing thermal-collecting tube.
in further technical scheme, by arranging multiple heat screen, reduce the heat loss of thermal-collecting tube further.
in further technical scheme, by arranging insulation material between adjacent two heat screens, enhancing the heat insulation effect to thermal-collecting tube, improving the collecting efficiency of thermal-collecting tube.
in further technical scheme, by arranging the second heat-insulation layer at the outer wall of glass bushing, and
the light inlet of light gathering reflector assembly forms breach, avoids glass bushing inside and the heat radiation of external environment, reduces heat waste.
in further technical scheme, reflecting layer is set by the inwall at glass bushing, reduces heat radiation further, reduce heat waste.
in further technical scheme, by glass bushing with vacuumize component and be connected, can implement dynamically vacuumize to glass bushing, ensure that glass bushing inside is in vacuum state all the time.
in further technical scheme, light gathering reflector assembly can be compound parabolic concentrator, reverberation high-efficiency reflective can be formed spotlight effect to thermal-collecting tube.
in further technical scheme, light gathering reflector assembly can be many catadioptrics face that at least two plane reflection faces are formed, and makes the light that reflexes on thermal-collecting tube comparatively even, avoids the too high thermal-collecting tube local heating that causes of local temperature uneven.
compared with prior art, the light-condensing and heat-collecting device that the utility model provides, by light and heat collection cell layout described above on the reflected light path of speculum, through speculum reflection sunray through glass bushing, a part directly converges on thermal-collecting tube, and another part again focuses on thermal-collecting tube after the reflection of light gathering reflector assembly; The reflecting layer of light gathering reflector assembly can be avoided oxidized, improve the light gathering efficiency of light gathering reflector assembly, thus improve the collecting efficiency of thermal-collecting tube.
Accompanying drawing explanation
also with reference to accompanying drawing, the utility model is described in more detail based on being only non-limiting embodiment hereinafter.Wherein:
fig. 1 is the structural representation of heat collection unit in background technology.
the structural representation of the light and heat collection unit that Fig. 2 provides for the utility model embodiment one.
the structural representation of the light and heat collection unit that Fig. 3 provides for the utility model embodiment two.
the structural representation of the light and heat collection unit that Fig. 4 to Fig. 6 provides for the utility model embodiment three.
the structural representation of the light-condensing and heat-collecting device that Fig. 7, Fig. 8 provide for the utility model embodiment four.
11-thermal-collecting tube, 12-secondary reflection device, 13-shell, 14-insulation material, 15-transparent cover plate, 22-light gathering reflector assembly, 23-glass bushing, 24-heat screen, 25-first insulation material, 26-speculum.
Detailed description of the invention
be clearly and completely described the technical scheme in the utility model embodiment below in conjunction with drawings and Examples, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of the utility model protection.
embodiment one
as shown in Figure 2, the light and heat collection unit of the present embodiment comprises inner glass bushing 23 in vacuum state and is arranged on the heat collection component of inside of glass bushing 23; Heat collection component comprises thermal-collecting tube 11 and for light being reflexed to the light gathering reflector assembly 22 on thermal-collecting tube 11.
the light and heat collection unit that the utility model provides, by light gathering reflector assembly 22 being arranged in the inside of the inner glass bushing 23 in vacuum state, the reflecting layer avoiding light gathering reflector assembly 22 is oxidized, improve the light gathering efficiency of light gathering reflector assembly 22, thus improve the collecting efficiency of thermal-collecting tube 11.
embodiment two
as shown in Figure 3, the light and heat collection unit of the present embodiment comprises inner glass bushing 23 in vacuum state and is arranged on the heat collection component of inside of glass bushing 23; Heat collection component comprises thermal-collecting tube 11 and for light being reflexed to the light gathering reflector assembly 22 on thermal-collecting tube 11.
wherein, glass bushing 23 outer wall arranges the second heat-insulation layer, and the second heat-insulation layer forms breach at the light inlet of light gathering reflector assembly 22. and avoid glass bushing 23 inside and the heat radiation of external environment, reduce heat waste.Also reflecting layer can be set at the inwall of glass bushing 23, reduce heat radiation further, reduce heat waste.In addition, for keeping the inside of glass bushing 23 to be in vacuum state all the time, can by glass bushing 23 with vacuumize component and be connected, implement dynamically to vacuumize to glass bushing 23, ensure that glass bushing inside is in vacuum state all the time.
in addition, the light gathering reflector assembly 22 in the present embodiment is many catadioptrics face that at least two plane reflection faces are formed, and makes the light that reflexes on thermal-collecting tube 11 comparatively even, avoids too high thermal-collecting tube 11 local heating that causes of local temperature uneven.Many catadioptrics face is wherein spliced to form at least two flat glass mirrors.
embodiment three
by adopting the inner glass bushing in vacuum state in above-mentioned two embodiments, the reflecting layer avoiding light gathering reflector assembly is oxidized, avoids the thermal convection current between glass bushing inside and thermal-collecting tube simultaneously,
decrease the heat loss of thermal-collecting tube, but between glass bushing inner space and thermal-collecting tube, between glass bushing inner space and external environment, still there is heat radiation, adds somewhat to the heat waste of thermal-collecting tube.
for this reason, the light and heat collection unit that the present embodiment provides can reduce the heat waste of thermal-collecting tube further, and as shown in Figs. 4-6, the light and heat collection unit of the present embodiment comprises inner glass bushing 23 in vacuum state and is arranged on the heat collection component of inside of glass bushing 23; Heat collection component comprises thermal-collecting tube 11 and for light being reflexed to the light gathering reflector assembly 22 on thermal-collecting tube 11.Also comprise at least one heat screen 24 of the inside being arranged on glass bushing 23, heat screen 24 arranges around heat collection component and forms breach at the light inlet of light gathering reflector assembly 22, under the condition not affecting light gathering reflector assembly 22 optically focused, insulation can be implemented to thermal-collecting tube 11, reduce the heat radiation of thermal-collecting tube 11 with glass bushing 23 inside and the heat radiation of thermal-collecting tube 11 and external environment condition more, thus reduce the heat loss of thermal-collecting tube 11.
wherein, heat screen 24 can be multiple, multiple heat screen 24 is sheathed successively from the inside to the outside in the inside of glass bushing 23, and between adjacent two heat screens 24, first insulation material 25 is set, because of the first insulation material 25 and the Contact of heat screen 24, there is heat transfer to a certain degree, therefore select the heat-insulating material of lower thermal conductivity as the first insulation material 25; Consider thermal radiation property and the thermal conduction characteristic of glass bushing inside, select the first suitable insulation material 25.The heat loss of further minimizing thermal-collecting tube, enhances the heat insulation effect to thermal-collecting tube, improves the collecting efficiency of thermal-collecting tube.
and the second heat-insulation layer is set at glass bushing 23 outer wall, and the second heat-insulation layer forms breach at the light inlet of light gathering reflector assembly 22, when not affecting light gathering reflector assembly 22 optically focused, glass bushing being incubated, reducing the heat exchange of glass bushing and external environment.Also reflecting layer can be set at the inwall of glass bushing 23, reduce the heat radiation between glass bushing 23 and thermal-collecting tube 11 further, reduce the heat waste of thermal-collecting tube 11.In addition, for keeping the inside of glass bushing 23 to be in vacuum state all the time, can by glass bushing 23 with vacuumize component and be connected, implement dynamically to vacuumize to glass bushing 23, ensure that glass bushing inside is in vacuum state all the time.
the light gathering reflector assembly 22 of the present embodiment is arranged symmetrically with along the radial direction of thermal-collecting tube 11, specifically can be compound parabolic concentrator or the many catadioptrics face at least two plane reflection faces formation, many catadioptrics face is wherein spliced to form at least two flat glass mirrors.Utilize light gathering reflector assembly 22 to be focused on thermal-collecting tube 11 by reverberation, add the light receiver rate of thermal-collecting tube 11, thus improve the collecting efficiency of thermal-collecting tube 11.
it should be noted that, in the present embodiment, the set-up mode of light gathering reflector assembly 22 also can as Fig. 5, figure
shown in 6, light gathering reflector assembly 22 is arranged symmetrically with along the radial direction of thermal-collecting tube 11, light gathering reflector assembly 22 not with the contact internal walls of glass bushing 23.When the contact internal walls of light gathering reflector assembly 22 not with glass bushing 23, the arrangement of heat screen 24 as shown in Figure 5, heat screen 24 can arrange around heat collection component and form breach at the light inlet of light gathering reflector assembly 22, is specially to contact with the extended line of light gathering reflector assembly 22 and arranges.When the contact internal walls of light gathering reflector assembly 22 not with glass bushing 23, the arrangement of heat screen 24 also can be as shown in Figure 6, heat screen 24 can arrange around heat collection component and form breach at the light inlet of light gathering reflector assembly 22, is specially to contact with light gathering reflector assembly 22 and arranges.
embodiment four
the present embodiment, as shown in Figure 7, Figure 8, the light-condensing and heat-collecting device of the present embodiment, comprises the light and heat collection unit of any embodiment in above-described embodiment one to embodiment three that the reflected light path of speculum 26 and speculum 26 is arranged.
in the present embodiment, speculum can be fresnel reflecting mirror, as shown in Figure 7, sunshine reflects through speculum 26, part light directly reflexes on thermal-collecting tube 11, a part of light reflection on light gathering reflector assembly 22, then through the reflect focalization of light gathering reflector assembly 22 on thermal-collecting tube 11.
in the present embodiment, speculum also can be slot type speculum, as shown in Figure 8, sunshine reflects through speculum 26, part light directly reflexes on thermal-collecting tube 11, part light reflection is on light gathering reflector assembly 22, again through the reflect focalization of light gathering reflector assembly 22 on thermal-collecting tube 11, by thermal-collecting tube 11, light gathering reflector assembly 22 are arranged in the inner glass bushing 23 in vacuum state, the reflecting layer avoiding light gathering reflector assembly 22 is oxidized, improves the light gathering efficiency of light gathering reflector assembly 22; Meanwhile, avoid the heat convection of glass bushing 23 inside, decrease the heat radiation of glass bushing 23 and thermal-collecting tube 11, thus reduce the heat waste of thermal-collecting tube 11.
it should be noted that; speculum 26 in the present embodiment also can be level crossing; speculum 26 in the present embodiment is arranged for also can be array, and speculum of the present utility model is not limited to structure described above, but all should fall within protection domain of the present utility model.
finally it should be noted that: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although be described in detail the utility model with reference to aforementioned embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned embodiments is recorded, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of the utility model embodiment technical scheme.
Claims (11)
1. a light and heat collection unit, is characterized in that, comprises inner glass bushing in vacuum state and is arranged on the heat collection component of inside of described glass bushing;
Described heat collection component comprises thermal-collecting tube and for light being reflexed to the light gathering reflector assembly on described thermal-collecting tube.
2. light and heat collection unit according to claim 1, it is characterized in that, also comprise at least one heat screen of the inside being arranged on described glass bushing, described heat screen arranges around described heat collection component and forms breach at the light inlet of described light gathering reflector assembly.
3. light and heat collection unit according to claim 2, is characterized in that, described heat screen is multiple, and multiple described heat screen is sheathed successively from the inside to the outside in the inside of described glass bushing.
4. light and heat collection unit according to claim 3, is characterized in that, arranges the first insulation material between two adjacent described heat screens.
5. the light and heat collection unit according to any one of Claims 1-4, is characterized in that, described glass bushing outer wall arranges the second heat-insulation layer, and described second heat-insulation layer forms breach at the light inlet of described light gathering reflector assembly.
6. the light and heat collection unit according to any one of Claims 1-4, is characterized in that, described glass bushing inwall arranges reflecting layer.
7. the light and heat collection unit according to any one of Claims 1-4, is characterized in that, described glass bushing with vacuumize component and be connected.
8. the light and heat collection unit according to any one of Claims 1-4, is characterized in that, described light gathering reflector assembly is compound parabolic concentrator.
9. the light and heat collection unit according to any one of Claims 1-4, is characterized in that, described light gathering reflector assembly is many catadioptrics face that at least two plane reflection faces are formed.
10. the light and heat collection unit according to any one of claim 9, is characterized in that, described many catadioptrics face is spliced to form at least two flat glass mirrors.
11. 1 kinds of light-condensing and heat-collecting devices, is characterized in that, comprise the light and heat collection unit described in any one of the claims 1 to 10 that the reflected light path of speculum and described speculum is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420531843.XU CN204128207U (en) | 2014-09-16 | 2014-09-16 | A kind of light and heat collection unit and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420531843.XU CN204128207U (en) | 2014-09-16 | 2014-09-16 | A kind of light and heat collection unit and device |
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| CN204128207U true CN204128207U (en) | 2015-01-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091418A (en) * | 2016-03-23 | 2016-11-09 | 南京工业大学 | One is exempted to follow the tracks of small-sized solar concentrating collector |
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- 2014-09-16 CN CN201420531843.XU patent/CN204128207U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091418A (en) * | 2016-03-23 | 2016-11-09 | 南京工业大学 | One is exempted to follow the tracks of small-sized solar concentrating collector |
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