CN206073482U - A kind of displacement air heat extractor of solar energy thermal-power-generating with many pocket surfaces - Google Patents
A kind of displacement air heat extractor of solar energy thermal-power-generating with many pocket surfaces Download PDFInfo
- Publication number
- CN206073482U CN206073482U CN201621038861.XU CN201621038861U CN206073482U CN 206073482 U CN206073482 U CN 206073482U CN 201621038861 U CN201621038861 U CN 201621038861U CN 206073482 U CN206073482 U CN 206073482U
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- China
- Prior art keywords
- canister
- solar energy
- cavity
- extinction
- heat
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S2023/88—Multi reflective traps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/60—Details of absorbing elements characterised by the structure or construction
- F24S2070/62—Heat traps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a kind of displacement air heat extractor of solar energy thermal-power-generating with many pocket surfaces, including heat absorption carrier, thermal insulator and canister；It is characterized in that：Thermal insulator is located at the outside of canister, the front opening of canister, and front end and is provided with solar energy collecting portion, and canister is provided with the inner space of air inlet pipe, escape pipe and extinction cavity, air inlet pipe and canister；Extinction cavity is located at the interior intracavity of canister, connects with solar energy collecting portion, the opening direction that extinction cavity is projected towards solar energy；Described heat absorption carrier is located in canister；Canister inner chamber forms a closed heat absorber cavity with heat absorption carrier, and escape pipe is connected with heat absorber cavity.Solar thermal energy receiving surface of the present utility model arranges some extinction cavitys with pocket surfaces, by increasing capacitance it is possible to increase the foamed ceramics heat absorption carrier of porous media and the contact area of extinction cavity, improves heat conductivility；The radiation heat loss of heat extractor can be reduced simultaneously.
Description
Technical field
This utility model belongs to solar light-heat power-generation high temperature air heat extractor technical field, is specifically related to one kind too
The displacement air heat extractor that positive energy heat generates electricity with many pocket surfaces.
Background technology
Solar light-heat power-generation technical field, due to the energy-flux density of the Radiation resource of solar energy it is low, it is impossible to carry out straight
Large-area solar energy often must be gathered and carry out in heat extractor photothermal deformation by the collection and utilization for connecing, and make stream in heat extractor
Dynamic working medium obtains heat energy, promotes thermoelectric conversion device work by High Temperature High Pressure working medium, realizes then being converted to solar energy
Electric energy is exported.
Heat extractor is the core apparatus that solar energy-working medium heat energy is changed, and the operation to whole solar energy thermo-power station is imitated
Rate affects notable.In order to effectively lift the efficiency of solar light-heat power-generation, generally by improve air working medium pressure and
Temperature, this heat extractor for being accomplished by configuring can bear High Temperature High Pressure.In high temperature solar air heat-absorbing device, using more
It is displacement air heat extractor, he is the matrix that heat extractor structure is constituted using three-dimensional porous dielectric material, by porous media
Absorbed solar heat energy, and the air working medium for flowing directly carries out heat convection with matrix, and then obtain air working medium
Heat energy, this positive displacement heat extractor are had high demands to the sealing property of heat extractor structure in high-voltage operation.Further, since condenser is supplied
The solar energy density given is huge, and energy flow distribution is uneven, easily on the receiving plane of heat extractor or inside heat extractor
Porous media matrix forms high temperature difference, is easily caused the damage of heat extractor.
In terms of the high-voltage operation of displacement air heat extractor, have and quartz window is installed further by the opening surface in heat extractor
Form confined space, though can a certain degree of raising operating pressure, quartz window easily damaged in the presence of high moderate pressure
It is bad, and sealing effectiveness is limited.Closed structure, such as prior art (CN are formed also by by tight porous media material
101307956 A) using compact silicon carbide ceramic as pressure-bearing air chamber, the operating pressure of this kind of air heat-absorbing device can reach for middle proposition
To more than 1Mpa, but the ruuning situation of 8 ~ 10 Mpa for high pressure, may more difficult adaptation.In the diabatic process of heat extractor,
Be by heat extractor inside receiving plane receive solar energy, then carry out heat conduction transmission, and air by porous media carrier
The heat energy transmission of Working fluid flow process, the Temperature Distribution of porous media carrier is uneven, is generally close to the temperature of receiving plane
Degree is high, and the temperature of air working medium exit position is low.Temperature distributing disproportionation inside heat extractor is even, is easily caused porous media material
The thermal ablation of material, and there is certain impact to the heat exchange efficiency of internal air working medium.In order to effectively improve the equal of Temperature Distribution
Even property, the air working medium operating pressure of heat extractor and temperature, need to propose the displacement air heat extractor of new construction.
Utility model content
In order to solve above-mentioned technical problem, this utility model provides a kind of exchange capability of heat for enabling to air heat-absorbing device more
By force, and it is capable of the displacement air heat extractor of the solar energy thermal-power-generating with many pocket surfaces of output high temperature and high pressure gas；The heat absorption
Device can make the Temperature Distribution of porous media heat absorption carrier of its inside evenly due to arranging some extinction cavitys, and energy
It is enough effectively to improve operational reliability and thermal performance.
The technical solution adopted in the utility model is：A kind of solar energy thermal-power-generating is inhaled with the displacement air of many pocket surfaces
Hot device, including heat absorption carrier, thermal insulator and canister；It is characterized in that：Thermal insulator is located at the outside of canister, and metal holds
The front opening of device, and front end is provided with solar energy collecting portion, canister is provided with air inlet pipe, escape pipe and extinction cavity, enters
The inner space of trachea and canister；Extinction cavity is located at the interior intracavity of canister, connects with solar energy collecting portion, extinction
The opening direction that cavity is projected towards solar energy；Described heat absorption carrier is located in canister；Canister inner chamber and suction
Heat carrier forms a closed heat absorber cavity, and escape pipe is connected with heat absorber cavity.
Above-mentioned solar energy thermal-power-generating with the displacement air heat extractor of many pocket surfaces, described solar energy collecting portion
For secondary condenser, secondary condenser is arranged on the front end of canister, and thermal insulator is provided with the outside of secondary condenser.
Above-mentioned solar energy thermal-power-generating with the displacement air heat extractor of many pocket surfaces, before described canister
End face is the composite cavity for absorbing solar energy, uniformly or according to sunlight distribution situation come cloth on the curved surface of composite cavity
Put some extinction cavitys.
With in the displacement air heat extractor of many pocket surfaces, the front end of secondary condenser sets above-mentioned solar energy thermal-power-generating
There is quartz window.
Above-mentioned solar energy thermal-power-generating with the displacement air heat extractor of many pocket surfaces, described extinction cavity be by
The curved cavity that entering light section and guide-lighting section combination are constituted.
With in the displacement air heat extractor of many pocket surfaces, described canister is adopted above-mentioned solar energy thermal-power-generating
The material such as resistant to elevated temperatures metal or resistant to elevated temperatures metal alloy is made.
With in the displacement air heat extractor of many pocket surfaces, described heat absorption carrier is many to above-mentioned solar energy thermal-power-generating
The foam silicon carbide ceramics of hole medium, described heat absorption carrier are arranged in the inner chamber front end of canister, heat absorption carrier and metal
The extinction housing surface of container is brought into close contact；Described extinction cavity front end and front end seal plate welding.
Above-mentioned solar energy thermal-power-generating with the displacement air heat extractor of many pocket surfaces, described extinction cavity it is several
What shape can be cylindrical cavity, back taper chamber or combination chamber, and described combination chamber is combined by back taper structure and cylindrical cavity.
Above-mentioned solar energy thermal-power-generating with the displacement air heat extractor of many pocket surfaces, before described canister
End surfaces leave gap with the afterbody of secondary condenser.
Above-mentioned solar energy thermal-power-generating with the displacement air heat extractor of many pocket surfaces, in described canister
Heat absorption carrier is made up of multistage, is provided with Turbogrid plates, some circular holes are provided with described Turbogrid plates between adjacent two sections.
Compared with prior art, the beneficial effects of the utility model are：
1st, this utility model employs resistant to elevated temperatures canister so that internal air working medium can be operated in higher
Under pressure and hot conditionss, the follow-up acting ability of working medium is effectively improved.
2nd, solar thermal energy receiving surface of the present utility model arranges some extinction cavitys with pocket surfaces, can make
The solar energy of aggregation is transmitted along pocket surfaces, can increase foamed ceramics heat absorption carrier and the extinction chamber of porous media
The contact area of body, contributes to lifting heat conductivility.And the pocket surfaces of extinction cavity easily form Hohlraum radiation, contribute to subtracting
The radiation heat loss of few heat extractor.
3rd, this utility model can be with reference to the solar energy distribution situation of aggregation, and the position of preferred arrangement extinction cavity can be with
So that the uniformity of temperature profile inside heat extractor；As extinction cavity is inserted in the inside of heat absorption carrier, suction is effectively improved
The thermal response effect of heat carrier, while also improving the temperature homogeneity of heat absorption carrier, effectively lifts changing for inner air working medium
Hot property.
Description of the drawings
Fig. 1 is the structural representation of embodiment of the present utility model 1.
Fig. 2 is the structural representation of embodiment of the present utility model 2.
Fig. 3 is the metal container structures schematic diagram of embodiment of the present utility model 1 and embodiment 2.
Fig. 4 is the structural representation of embodiment of the present utility model 3.
Fig. 5 is the structural representation of cylindrical cavity extinction cavity of the present utility model.
Fig. 6 is the structural representation of back taper chamber extinction cavity of the present utility model.
Fig. 7 is the structural representation of combination chamber extinction cavity of the present utility model.
1-thermal insulator, 2-air inlet pipe, 3-metal shell, 4-Turbogrid plates, 5-air inlet pipe, 6-escape pipe, 7-heat absorption
Device cavity, 8-volume heat extractor, 9-extinction cavity, 10-secondary condenser, 11-quartz window, 12-entering light section, 13-lead
Light section, 14-front end-plate, 15-composite cavity.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further described.
Embodiment 1
As shown in figure 1, this utility model is included for assembling the secondary condenser 10 of solar energy, heat absorption carrier 5, insulation
The canister 3 of the closed heat absorber cavity 7 of body 1 and formation.The front opening of canister 3, and front end and secondary condenser
10 rear end connection.The outside of canister 3 and secondary condenser 10 is provided with thermal insulator 1.Canister 3 be provided with air inlet pipe 2,
The inner space of escape pipe 6, extinction cavity 9 and front end-plate 14, air inlet pipe 2 and canister；Extinction cavity 9 is located at metal appearance
The interior intracavity of device 3, is connected with secondary condenser 10, the opening direction that extinction cavity 9 is projected towards solar energy, extinction cavity 9
Front end weld with front end-plate 14.Described heat absorption carrier 5 is arranged in the inside of canister 3, is close to 3 He of canister
The surface of extinction cavity 9.3 inner chamber of canister forms a closed heat absorber cavity 7, escape pipe with heat absorption carrier 5（6）With suction
Hot device cavity 7 is connected.Described extinction cavity 9 is to constitute curved cavity, described suction by entering light section 12 and the guide-lighting combination of section 13
Light cavity 9 is evenly arranged along the surface that 3 front end face of canister receives solar energy, for receiving the solar energy of aggregation, is made
Solar energy is reflected or diffuse-reflectance transmission in the inner re-entrant surfaces of extinction cavity 9.
As shown in figures 1 and 3, described canister 3 is using resistant to elevated temperatures metal or resistant to elevated temperatures gold such as rustless steel, tungsten
The category material such as alloy, the extinction cavity 9 of the canister 3 directly receives parabolic dish type condenser or secondary condenser 10 is anti-
The solar energy of aggregation is penetrated, extinction cavity 9 is located at 3 front end face of canister, and extinction cavity 9 is towards opening that solar energy is projected
Mouth position.
Foam silicon carbide ceramics of the described heat absorption carrier 5 for porous media, described heat absorption carrier 5 is arranged in closed
In heat absorber cavity 7, during molding, heat absorption carrier 5 is brought into close contact with 9 surface of extinction cavity of canister 3, is strengthened
The capacity of heat transmission；Described extinction cavity 9 and 14 welding fabrication of front end-plate, form hermetic container.
The front end light inlet position of described secondary condenser 10 is provided with quartz window 11, reduces the convection current heat waste of heat extractor
Lose；Described thermal insulator 1 is wrapped in the outside of canister 3 and secondary condenser 10, reduces heat loss.
Heat absorption carrier 5 in described canister 3 is made up of multistage, and Turbogrid plates 4, institute are provided between adjacent two sections
Some circular holes are provided with the Turbogrid plates 4 stated, the arrangement principle of circular hole is to ensure that flowing of the air working medium in canister 3 is changed
Heat energy power strengthens, and makes the temperature of air working medium higher.
Embodiment 2
As shown in Fig. 2 its structure is similar to Example 1, the front end for differing only in canister 3 can be with poly- with secondary
Gap L is left between the afterbody of light device 10, it is ensured that the energy flow distribution of the front-end surface of canister 3 is uniform.
Embodiment 3
As shown in figure 4, its structure is similar to Example 1, simply will replace for the secondary condenser 10 for assembling solar energy
The composite cavity 15 being arranged in canister 3 is changed to, uniformly or according to too on the basis of the surface geometry of composite cavity 15
Sunlight distribution situation is arranging some extinction cavitys 9.
As illustrated in figs. 5-7, the geometry of described extinction cavity 9 can be cylindrical cavity, back taper chamber and combine chamber, described
Combination chamber be to be combined by back taper structure and cylindrical cavity.
This utility model employs the composition enclosed volume of resistant to elevated temperatures canister 3 so that internal air working medium can be with
It is operated under higher pressure and hot conditionss, effectively improves the follow-up acting ability of working medium；This utility model is in the sun
Heat energy receiving surface arranges some extinction cavitys 9 with pocket surfaces, can make the solar energy of aggregation along cavity table
Face is transmitted, and can increase the foamed ceramics heat absorption carrier 5 and the contact area of extinction cavity 9 of porous media, contribute to carrying
Rise heat conductivility.And the pocket surfaces of extinction cavity 9 easily form Hohlraum radiation, contribute to reducing the radiation heat loss of heat extractor
Lose；Additionally, this practicality can be caused new with reference to the solar energy distribution situation of aggregation, the position of preferred arrangement extinction cavity 9
Uniformity of temperature profile inside type；As extinction cavity 9 is inserted in the inside of heat absorption carrier 5, heat absorption carrier 5 is effectively improved
Thermal response effect, while also improve the temperature homogeneity of heat absorption carrier 5, effectively lift the heat-exchange performance of inner air working medium
Energy.
Claims (10)
1. a kind of displacement air heat extractor of solar energy thermal-power-generating with many pocket surfaces, including heat absorption carrier（5）, thermal insulator
（1）And canister（3）；It is characterized in that：Thermal insulator（1）It is located at canister（3）Outside, canister（3）Front end
Opening, and front end is provided with solar energy collecting portion, canister（3）It is provided with air inlet pipe（2）, escape pipe（6）And extinction cavity
（9）, air inlet pipe（2）With the inner space of canister；Extinction cavity（9）It is located at canister（3）Interior intracavity, with solar energy
Aggregation portion connects, extinction cavity（9）Towards the opening direction of solar energy projection；Described heat absorption carrier（5）It is located at metal appearance
Device（3）It is interior；Canister（3）Inner chamber and heat absorption carrier（5）Form a closed heat absorber cavity（7）, escape pipe（6）With heat absorption
Device cavity（7）Connection.
2. the solar energy thermal-power-generating according to claim 1 displacement air heat extractor of many pocket surfaces, is characterized in that：
Described solar energy collecting portion is secondary condenser（10）, secondary condenser（10）It is installed in the front end of canister, secondary poly-
Light device（10）Outside be provided with thermal insulator.
3. the solar energy thermal-power-generating according to claim 1 displacement air heat extractor of many pocket surfaces, is characterized in that：
Described canister（3）Front end face be the composite cavity for absorbing solar energy（15）, in composite cavity（15）Curved surface on
It is uniform or according to sunlight distribution situation arranging some extinction cavitys（9）.
4. the solar energy thermal-power-generating according to claim 2 displacement air heat extractor of many pocket surfaces, is characterized in that：
Secondary condenser（10）Front end be provided with quartz window（11）.
5. the solar energy thermal-power-generating according to claim 1 displacement air heat extractor of many pocket surfaces, is characterized in that：
Described extinction cavity（9）It is by entering light section（12）With guide-lighting section（13）The curved cavity that combination is constituted.
6. the solar energy thermal-power-generating according to claim 1 displacement air heat extractor of many pocket surfaces, is characterized in that：
Described canister（3）Made using resistant to elevated temperatures metal or resistant to elevated temperatures metal alloy compositions.
7. the solar energy thermal-power-generating according to claim 1 displacement air heat extractor of many pocket surfaces, is characterized in that：
Described heat absorption carrier（5）For the foam silicon carbide ceramics of porous media, described heat absorption carrier（5）It is arranged in canister
（3）Inner chamber front end, heat absorption carrier（5）With canister（3）Extinction cavity（9）Surface is brought into close contact；Described extinction chamber
Body（9）Front end and front end-plate（14）Welding.
8. the solar energy thermal-power-generating according to claim 1 displacement air heat extractor of many pocket surfaces, is characterized in that：
Described extinction cavity（9）Geometry can for cylindrical cavity, back taper chamber or combination chamber, described combination chamber be by back taper tie
Structure and cylindrical cavity are combined.
9. the solar energy thermal-power-generating according to claim 2 displacement air heat extractor of many pocket surfaces, is characterized in that：
Described canister（3）Front-end surface and secondary condenser（10）Afterbody leave gap.
10. displacement air heat extractor of the solar energy thermal-power-generating according to claim 1 with many pocket surfaces, its feature
It is：Described canister（3）Interior heat absorption carrier（5）It is made up of multistage, between adjacent two sections, is provided with Turbogrid plates（4）,
Described Turbogrid plates（4）On be provided with some circular holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621038861.XU CN206073482U (en) | 2016-09-06 | 2016-09-06 | A kind of displacement air heat extractor of solar energy thermal-power-generating with many pocket surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621038861.XU CN206073482U (en) | 2016-09-06 | 2016-09-06 | A kind of displacement air heat extractor of solar energy thermal-power-generating with many pocket surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206073482U true CN206073482U (en) | 2017-04-05 |
Family
ID=58437013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621038861.XU Withdrawn - After Issue CN206073482U (en) | 2016-09-06 | 2016-09-06 | A kind of displacement air heat extractor of solar energy thermal-power-generating with many pocket surfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206073482U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196655A (en) * | 2016-09-06 | 2016-12-07 | 湖南科技大学 | A kind of solar energy thermal-power-generating displacement air heat extractor of many pocket surfaces |
| CN109812984A (en) * | 2018-12-29 | 2019-05-28 | 南京航空航天大学 | A kind of solar porous medium heat dump with volume effect |
-
2016
- 2016-09-06 CN CN201621038861.XU patent/CN206073482U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196655A (en) * | 2016-09-06 | 2016-12-07 | 湖南科技大学 | A kind of solar energy thermal-power-generating displacement air heat extractor of many pocket surfaces |
| CN106196655B (en) * | 2016-09-06 | 2017-12-08 | 湖南科技大学 | A kind of displacement air heat dump of the more pocket surfaces of solar energy thermal-power-generating |
| CN109812984A (en) * | 2018-12-29 | 2019-05-28 | 南京航空航天大学 | A kind of solar porous medium heat dump with volume effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170405 Effective date of abandoning: 20171208 |