CN201628404U - Cylindrical solar energy high temperature cavity type heat absorber - Google Patents
Cylindrical solar energy high temperature cavity type heat absorber Download PDFInfo
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- CN201628404U CN201628404U CN2010201609531U CN201020160953U CN201628404U CN 201628404 U CN201628404 U CN 201628404U CN 2010201609531 U CN2010201609531 U CN 2010201609531U CN 201020160953 U CN201020160953 U CN 201020160953U CN 201628404 U CN201628404 U CN 201628404U
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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
Disclosed is a cylindrical solar energy high temperature cavity type heat absorber, which belongs to the field of solar energy thermal power generation engineering. The heat absorber is mainly composed of a heated working medium entrance joint pipe, an insulation layer, a heated working medium channel outer wall, an inner wall and an outer wall of the cavity type heat absorber, and a daylight opening. A heated working medium channel is formed between the outer wall of the cavity type heat absorber and the heated working medium channel outer wall; a vacuum cavity body is formed between the inner wall and the outer wall of the cavity type heat absorber, metal fins are evenly arranged in the vacuum cavity body, and small round holes are arranged on the central lines of the metal fins; solution adsorption cores are arranged on the surfaces of the metal fins and the internal surface of the vacuum cavity body; an insulation layer is arranged around the outer wall surface of the heat absorber besides the daylight opening; heated working medium inlet joint pipes are arranged around the far right end of the heated working medium channel outer wall every 90 degrees, and the heated working medium outlet joint pipes are positioned on the axial central line of the cylindrical cavity type heat absorber. The utility model has advantages of convenient manufacture, high thermal efficiency, compact structure and reliable running.
Description
Technical field:
Title of the present utility model is a kind of cylindrical solar energy high temperature cavity type heat absorber, belongs to solar energy thermal-power-generating engineering field.
Background technology:
Solar energy dish formula elevated temperature heat generation technology is as one of solar energy three big hot generation technologies (slot type, tower, dish formula), its optical efficiency height, tracking error be low, it is little to start loss, photo-thermal conversion efficiency is up to about 85%, photoelectric transformation efficiency is especially up to 31.25%, first of the three big solar energy thermal-power-generating technology of residence, thereby be subjected to the favor of western developed country, and develop comparatively fast over nearly more than 20 years, the capacity of cellular system develops into 50kW from 2kW.Solar energy dish formula heat generating system mainly is made up of dish formula condenser, heat dump and generator three big parts, wherein heat dump is the critical component of solar radiant energy to thermal power transfer, and the improvement of its performance and the thermal efficiency has great importance to performance and the conversion efficiency of thermoelectric that improves whole solar energy dish formula heat generating system.
The heat dump of practical application at present adopts cavity structure more, can be divided into cylindrical, square, spherical, hemispherical, flat-top taper etc. by shape, and it is cylindrical and square that common is etc.; By operation principle, can be divided into and utilize the interior of the direct heating working medium of focusing sunlight around tubular type heat dump and the heat pipe-type heat dump that utilizes heat pipe principle indirect working medium.The many employings of traditional solar heat absorber are interior around the tubular type cavity type heat absorber, promptly be equipped be heated working medium the pipeline uniform winding on the cavity inner wall face of heat dump, by the solar energy of direct absorption from the butterfly condenser system, the working medium of water back inside, obvious this structure be heated the working medium pipeline owing to place the inside cavity of heat dump, its process for machining and manufacturing complexity; Characteristic owing to sun heat radiation makes the wall temperature that is heated the working medium pipeline have very big inhomogeneities simultaneously, thereby has influenced the safe and stable operation of high temperature cavity type heat absorber; In addition, traditional interior insulation material around the tubular type cavity type heat absorber directly is wrapped on the cavity wall, the temperature height, and radiation loss is big, thereby has reduced the hot property of cavity type heat absorber.Therefore, be necessary the structure of existing solar cavity type heat absorber is improved.
Summary of the invention:
The technical problems to be solved in the utility model provides a kind of cylindrical solar energy high temperature cavity type heat absorber.Change traditional arrangement that the working medium pipeline places the heat dump inside cavity that is heated on the one hand, place heat dump cavity outside, convenient processing and manufacture being heated the working medium passage; Heat-insulation layer is wrapped in and is heated on the working medium channel outer wall face simultaneously, and temperature is relatively low, and radiation loss is little; On the other hand, make full use of plate heat pipe principle, become traditional the non-homogeneous wall temperature of working medium is heated to be even wall temperature heating, satisfying under the condition of compact conformation, improve the security and stability of high temperature cavity type heat absorber operation.
For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions:
Mainly by being heated working medium entrance sleeve 1, heat-insulation layer 2, being heated working medium channel outer wall 3, being heated a kind of cylindrical solar energy high temperature cavity type heat absorber that sender property outlet adapter 4, cavity type heat absorber outer wall 5, cavity type heat absorber inwall 8 and aperture 9 are formed, it is characterized in that: cavity type heat absorber inwall 8 surrounds circular cylindrical cavity; Cavity type heat absorber outer wall 5 and be heated between the working medium channel outer wall 3 to form and be heated the working medium passage; Form vacuum cavity between cavity type heat absorber inwall 8 and the cavity type heat absorber outer wall 5, and be provided with metal fin 6 in the vacuum cavity, on metal fin 6 surfaces and the vacuum cavity inner surface be equipped with the imbibition core 7 that working medium for liquid refluxes, thereby form the structure that is similar to plate heat pipe; Around the heat dump outer wall surface of removing aperture 9 places, be equipped with heat-insulation layer 2; Be furnished with one every 90 degree around working medium channel outer wall 3 low order ends and be heated working medium entrance sleeve 1 being heated, be heated sender property outlet and take over 4 and be positioned on the cylindrical cavate heat dump longitudinal center line.
The utility model compared with prior art has following characteristics: (1) the utility model adopts the structure based on plate heat pipe operation principle, simultaneously owing to each inner little vacuum cavity interconnects, thereby become traditional the non-homogeneous wall temperature of working medium is heated to be even wall temperature heating, compare with conventional heat pipe, the structure of whole device is compact more.(2) the vacuum cavity inside that forms between cavity type heat absorber inwall and cavity type heat absorber outer wall is equipped with metal fin, vacuum cavity that will be bigger replaces with a plurality of little vacuum cavities, not only shortened the path that liquid working substance refluxes, improved its axial thermal conductivity ability, strengthened heat-transfer effect, also play the effect of support wall in order, thereby strengthened mechanical strength.(3) the metal fin surface is equipped with liquid sucting core structure with each little vacuum cavity inner surface, and the capillary force that makes liquid reflux strengthens greatly, applicable to different cavity type heat absorber inclination angle arrangements.(4) become traditional arrangement that the working medium pipeline places the heat dump inside cavity that is heated, place heat dump cavity outside, convenient processing and manufacture being heated the working medium passage.
Description of drawings:
Fig. 1 is the utility model structural representation, and Fig. 2 is the A-A cross section view of Fig. 1.
Wherein: 1-is heated the working medium entrance sleeve; The 2-heat-insulation layer; 3-is heated the working medium channel outer wall; 4-is heated sender property outlet and takes over; 5-cavity type heat absorber outer wall; The 6-metal fin; 7-imbibition core; 8-cavity type heat absorber inwall; The 9-aperture; The 10-circular aperture.
The specific embodiment:
Below in conjunction with the Fig. 1 in the Figure of description, Fig. 2 concrete enforcement of the utility model is elaborated.The utility model mainly by be heated working medium entrance sleeve 1, heat-insulation layer 2, be heated working medium channel outer wall 3, be heated that sender property outlet takes over 4, cavity type heat absorber outer wall 5, cavity type heat absorber inwall 8 and aperture 9 form.Cavity type heat absorber inwall 8 surrounds circular cylindrical cavity; Cavity type heat absorber outer wall 5 and be heated between the working medium channel outer wall 3 to form and be heated the working medium passage; Form vacuum cavity between cavity type heat absorber inwall 8 and the cavity type heat absorber outer wall 5, and evenly be provided with metal fin 6 in the vacuum cavity, be equipped with the imbibition core 7 of working medium backflow for liquid on metal fin 6 surfaces and each little vacuum cavity inner surface, thereby form the structure that is similar to plate heat pipe; Around the heat dump outer wall surface of removing aperture 9 places, be equipped with heat-insulation layer 2; Be furnished with one every 90 degree around working medium channel outer wall 3 low order ends and be heated working medium entrance sleeve 1 being heated, be heated sender property outlet and take over 4 and be positioned on the cylindrical cavate heat dump longitudinal center line; Metal fin 6 is to be made by the high thermal conductivity coefficient material, has the high heat transfer effect, and plays a supportive role, and have circular aperture 10 on each metal fin 6 center line, is communicated with each the little vacuum cavity that is separated by metal fin 6; Whole heat dump is applicable to different inclination angle arrangements.
The course of work of the present utility model is as follows:
Solar radiation from solar energy dish formula condenser system is entered in the cavity of cavity type heat absorber by aperture 9, heating cavity type heat absorber inwall 8, heat is passed to by cavity type heat absorber inwall 8 in the mode of heat conduction then, in each little vacuum cavity that cavity type heat absorber outer wall 5 and metal fin 6 are formed, on the cavity type heat absorber inwall 8 (evaporation ends that is equivalent to plate heat pipe) of each little vacuum cavity, liquid working substance (working medium that is equivalent to plate heat pipe) heat absorption vaporization in the little vacuum cavity, the working medium after the vaporization moves to cavity type heat absorber outer wall 5 (condensation end that is equivalent to plate heat pipe); On cavity type heat absorber outer wall 5, the working medium of gaseous state by condensation heat discharge to cavity type heat absorber outer wall 5 outer be heated the working medium that condenses into liquid state after the working medium that is heated in the working medium passage (this passage by cavity type heat absorber outer wall 5 be heated working medium channel outer wall 3 and form); Liquid working medium is back on the cavity type heat absorber inwall 8 heat absorption vaporization again under imbibition core 7 effects on little vacuum cavity inner surface and metal fin 6 surfaces; And be heated working medium by 4 be heated working medium entrance sleeve 1 evenly enter by cavity type heat absorber outer wall 5 be heated being heated in the working medium passage that working medium channel outer wall 3 forms, be heated working medium and absorb heat, reach after the desired temperature by being heated sender property outlet and take over 4 and flow out from cavity type heat absorber outer wall 5 in the mode of heat convection.
Claims (2)
1. cylindrical solar energy high temperature cavity type heat absorber is mainly by being heated working medium entrance sleeve (1), heat-insulation layer (2), being heated working medium channel outer wall (3), being heated sender property outlet and taking over (4), cavity type heat absorber outer wall (5), cavity type heat absorber inwall (8) and aperture (9) and form; It is characterized in that: cavity type heat absorber inwall (8) surrounds circular cylindrical cavity; Cavity type heat absorber outer wall (5) and be heated between the working medium channel outer wall (3) to form and be heated the working medium passage; Form vacuum cavity between cavity type heat absorber inwall (8) and the cavity type heat absorber outer wall (5), and evenly be provided with metal fin (6) in the vacuum cavity, on metal fin (6) surface and the vacuum cavity inner surface be equipped with the imbibition core (7) that working medium for liquid refluxes, thereby form the structure that is similar to plate heat pipe; Around the heat dump outer wall surface of locating except that aperture (9), be equipped with heat-insulation layer (2); Be furnished with one every 90 degree around working medium channel outer wall (3) low order end and be heated working medium entrance sleeve (1) being heated, be heated sender property outlet and take over (4) and be positioned on the cylindrical cavate heat dump longitudinal center line.
2. a kind of cylindrical solar energy high temperature cavity type heat absorber according to claim 1, it is characterized in that: the metal fin described in the claim 1 (6), be to make by the high thermal conductivity coefficient material, has the high heat transfer effect, and play a supportive role, and on each metal fin (6) center line, have circular aperture (10), be communicated with each the little vacuum cavity that is separated by metal fin (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201609531U CN201628404U (en) | 2010-04-16 | 2010-04-16 | Cylindrical solar energy high temperature cavity type heat absorber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201609531U CN201628404U (en) | 2010-04-16 | 2010-04-16 | Cylindrical solar energy high temperature cavity type heat absorber |
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| Publication Number | Publication Date |
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| CN201628404U true CN201628404U (en) | 2010-11-10 |
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| CN2010201609531U Expired - Fee Related CN201628404U (en) | 2010-04-16 | 2010-04-16 | Cylindrical solar energy high temperature cavity type heat absorber |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560706A (en) * | 2013-11-14 | 2014-02-05 | 重庆大学 | Solar thermoelectric generation device based on Fresnel lens and heat pipe principle |
| CN104061690A (en) * | 2014-07-01 | 2014-09-24 | 福建工程学院 | Solar energy heat absorber with increased dielectric absorption coefficient gradient |
| CN104075460A (en) * | 2014-07-01 | 2014-10-01 | 福建工程学院 | Solar heat absorber with novel optical window |
| CN104567024A (en) * | 2015-01-17 | 2015-04-29 | 浙江大学 | Sensible heat storing type cavity light collecting and heat absorbing type solar heat collecting device and method |
| CN109539606A (en) * | 2018-12-14 | 2019-03-29 | 华南理工大学 | Built-in positive tetrahedron chamber pond boiling type solar heat absorber, solar thermal energy high temperature absorbs and storage method |
| CN113294921A (en) * | 2021-06-09 | 2021-08-24 | 湖南科技大学 | Solar cavity heat absorber with built-in stirring and heat exchange enhancement functions |
-
2010
- 2010-04-16 CN CN2010201609531U patent/CN201628404U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560706A (en) * | 2013-11-14 | 2014-02-05 | 重庆大学 | Solar thermoelectric generation device based on Fresnel lens and heat pipe principle |
| CN104061690A (en) * | 2014-07-01 | 2014-09-24 | 福建工程学院 | Solar energy heat absorber with increased dielectric absorption coefficient gradient |
| CN104075460A (en) * | 2014-07-01 | 2014-10-01 | 福建工程学院 | Solar heat absorber with novel optical window |
| CN104567024A (en) * | 2015-01-17 | 2015-04-29 | 浙江大学 | Sensible heat storing type cavity light collecting and heat absorbing type solar heat collecting device and method |
| CN104567024B (en) * | 2015-01-17 | 2016-03-09 | 浙江大学 | Sensible heat heat accumulating type cavity optically focused heat absorption solar energy heat collector and method |
| CN109539606A (en) * | 2018-12-14 | 2019-03-29 | 华南理工大学 | Built-in positive tetrahedron chamber pond boiling type solar heat absorber, solar thermal energy high temperature absorbs and storage method |
| CN113294921A (en) * | 2021-06-09 | 2021-08-24 | 湖南科技大学 | Solar cavity heat absorber with built-in stirring and heat exchange enhancement functions |
| CN113294921B (en) * | 2021-06-09 | 2022-03-08 | 湖南科技大学 | Solar cavity heat absorber with built-in stirring and heat exchange enhancement functions |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20170416 |