CN206387126U - Straight ribbed pipe inserts fin slot light collection evacuated solar collector - Google Patents
Straight ribbed pipe inserts fin slot light collection evacuated solar collector Download PDFInfo
- Publication number
- CN206387126U CN206387126U CN201720025766.4U CN201720025766U CN206387126U CN 206387126 U CN206387126 U CN 206387126U CN 201720025766 U CN201720025766 U CN 201720025766U CN 206387126 U CN206387126 U CN 206387126U
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- Prior art keywords
- glass tube
- collector
- slot
- layer glass
- vacuum
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
Fin slot light collection evacuated solar collector, including vacuum collector, slot-type optical collector are inserted the utility model discloses a kind of straight ribbed pipe, vacuum collector is arranged on the spot position of slot-type optical collector；Vacuum collector includes the glass evacuated sleeve pipe of through type, is formed between outer layer glass tube and inner layer glass tube and straight ribbed pipe is coated with vacuum layer, inner layer glass tube, straight ribbed pipe is fixed by spring；Two arc thermal insulation boards are disposed with vacuum layer；Two fins are installed outside straight ribbed pipe.The utility model has the advantages that the heat flow density that light and heat collection efficiency high, thermal-collecting tube are received is more uniform, inner layer glass tube external radiation heat loss is few, thermal-collecting tube is less scaling, long lifespan.
Description
Technical field
The utility model is related to green energy resource field, more particularly to the straight ribbed pipe vacuous solar energy thermal-arrest of slot type interpolation fin
Device.
Background technology
With the continuous popularization of green building, building energy conservation, the development and utilization of solar thermal collector is increasingly by weight
Depending on.Because solar energy current density is than relatively low, in actual large-scale application, the thermal-arrest of common flat-plate solar heat collector
Temperature of Working is low and heat loss is big, and the thermal efficiency is very low.
Light-focusing type glass vacuum tube solar energy energy heat collector can make full use of glass-vacuum tube heat collector efficient and light weight special
On the basis of point, the operating temperature for collecting area and heat collector of solar radiant energy stream is further improved, effectively extension tradition is true
The application and heat energy quality of blank pipe heat collector.Except minority is applied in domestic hot water field, solar heat is mainly used in
Generate electricity or other industrial circles, such as food processing, the field such as metal and material process, chemical industry, desalinization, these necks
Domain temperature requirements scope is typically in 100 DEG C~300 DEG C.
Groove type solar concentrating collector includes concentrator and vacuum heat collection pipe.Concentrator minute surface is received on vacuum heat collection pipe
After reflected light, the heat flow density of surfaces of collector tubes is uneven in real work, i.e., towards reflector side heat flow density
Larger, opposite side heat flow density is smaller, and therefore can cause the circumferential big temperature difference, causes stress difference, generation pipe deforming to cause
Whole thermal-collecting tube air-tightness reduction, at the same time greatly shortens the life-span of thermal-collecting tube, so it is to solve vacuum to improve optically focused process
The problem of heat flow density of surfaces of collector tubes is uneven is extremely necessary.
The full-glass solar energy vacuum tube applied on slot light collection type heat collector, solar vacuum heat-collecting pipe inner layer glass
Pipe outer wall scribbles coating for selective absorption, and its inner layer glass tube can be up to 400 DEG C of even more than 400 DEG C of high temperatures, internal layer glass
The heat flow density of the outside radiant heat transfer of glass pipe can increased dramatically, while the inner layer glass tube emissivity under high temperature can reach
10%, cause the outside dispersed heat of inner layer glass tube bigger, so in the case of solution inner layer glass tube temperature is higher, vacuum
Thermal-collecting tube becomes very critical by the external radiations heat energy of inner layer glass inner tube big problem of scattering and disappearing.
Thermal-collecting tube is the crucial inner layer glass part of heat collector again, and traditional solar vacuum heat-collecting pipe wide variety is passed
The all-glass vacuum tube thermal-collecting tube thermal efficiency of system is high, but is unable to bearing operation, easy bursting by freezing, easy fouling, is not suitable for being used in greatly
It is multi-purpose to make family's solar water heater heat-collecting part in the solar water heating system of area.Improve thermal-arrest tubular construction, enhanced heat exchange
And reduce heat loss realization its performance of raising to developing efficient, reliable, inexpensive vacuum heat collecting pipe, heat collector with weight
The academic significance wanted.
It is more using concentrator such as structure, reflective film material etc. is improved both at home and abroad at present, almost not over improvement vacuum
Thermal-arrest tubular construction realizes secondary or multiple optically focused, improves the problem of heat flow density is uneven.Cause vacuum for slot light collection
Heat density that thermal-collecting tube is received is uneven and high temperature in the case of thermal-collecting tube the external radiations heat energy loss of inner layer glass tube
Greatly, and solar vacuum heat-collecting pipe this body structure the thermal efficiency is high, easy fouling the problems such as, applicant devises this practicality
It is new.
Utility model content
The purpose of this utility model goes out in existing slot light collection solar thermal collector technology from 3 important links
Hair：1) the incident sunshine optically focused collection of different angles is to thermal-collecting tube process；2) incident sunshine is converted into heat i.e. by thermal-collecting tube
Photothermal deformation process；3) the radiation loss process of thermal-collecting tube, solves prior art problem, improves its solar energy utilization ratio and optically focused
Collecting efficiency.
To realize above-mentioned utility model purpose, the technical solution of the utility model is：A kind of straight ribbed pipe is inserted fin slot type and gathered
Light evacuated solar collector, including vacuum collector, slot-type optical collector, the slot-type optical collector is used can be anti-by sunshine
The groove mirror surface for penetrating aggregation is set, and the vacuum collector is arranged on the spot position of slot-type optical collector；
The vacuum collector includes the glass evacuated sleeve pipe of through type, and the glass evacuated sleeve pipe of through type includes glass outer
Pipe, inner layer glass tube, form between outer layer glass tube and inner layer glass tube and are coated with vacuum layer, inner layer glass tube for heat Jie
The straight ribbed pipe that mass flow body passes through, straight ribbed pipe is fixed on inner layer glass tube axis by spring, and in inner side glass tube two ends peace
Fill sealing ring；Two arc thermal insulation boards are disposed with the vacuum layer, thermal insulation board is respectively along outer layer glass tube perpendicular to slot type
The two ends outer layers glass tube inner side of the diameter of concentrator minute surface line of symmetry, the relative extension in slot-type optical collector minute surface direction；
Two fins are installed, two fins are set along straight ribbed pipe radial direction outside the straight ribbed pipe, two fin folders
Angle angular bisector is consistent with slot-type optical collector minute surface direction, and is overlapped with slot-type optical collector minute surface line of symmetry.
As one kind of the present utility model preferably, the inner layer glass tube central angle of described two thermal insulation boards coverings is 60 °；Institute
State between two fins in 120 ° of angles.
As one kind of the present utility model preferably, the vacuum collector, slot-type optical collector are fixedly mounted on the tracking sun
On the rotating device of position.
It is used as of the present utility model a kind of preferred, AM aluminum metallization of the slot-type optical collector inner surface provided with enhancing reflectivity
Film.
As one kind of the present utility model preferably, the fin material is red copper or aluminium, and thickness is 0.08mm-1mm, long
Degree 100mm short compared with inner layer glass tube.
As one kind of the present utility model preferably, the thermal insulation board material is aluminium alloy, thermal insulation board and inner layer glass tube pair
The one side answered is the reflecting surface with high reflectance, and one side corresponding with outer layer glass tube is provided with coating for selective absorption
Heat-absorbent surface.
As one kind of the present utility model preferably, the fin and straight ribbed pipe outer surface are coated with spectrum selective paint.
The beneficial effects of the utility model are：
Compared with existing best technology, the hot-fluid that there is the utility model light and heat collection efficiency high, thermal-collecting tube to receive is close
More uniform, inner layer glass tube the external radiation heat loss of degree is few, thermal-collecting tube is less scaling, long lifespan the advantages of：
1st, 2 arc thermal insulation boards, primary event light of the secondary reflection from concentrator, slot type are respectively equipped with vacuum layer
Concentrator and secondary reflection plate can converge the sunshine of different angles above and below optical cross section, energy while fully absorbing direct projection light
Enough scattering lights effectively utilized in environment, the heat flow density for being effectively improved thermal-collecting tube reception is uneven, and can be by thermal insulation board
The straight ribbed pipe covered is largely reflected back on straight ribbed pipe and inner layer glass part by the external radiations heat energy in inner layer glass part,
Reduce the straight external radiations heat energy in ribbed pipe part to scatter and disappear, and then the solar vacuum heat-collecting pipe light and heat collection effect is reached most preferably
Change.
2nd, thermal insulation board one side corresponding with outer layer glass tube is the heat-absorbent surface provided with coating for selective absorption, solar irradiation
The heat-insulated plate temperature of direct projection will be raised, and the Radiant exothermicity between inner layer glass part that thermal insulation board is covered and thermal insulation board will be big
Width is reduced, so as to reduce external radiation heat loss indirectly.
3rd, fin and straight ribbed pipe outer surface can plate spectrum selective paint, by increasing sunshine absorption area, increase
Strong convection heat transfer intensity of the fluid with heat-absorbent surface in straight ribbed pipe, improves solar radiation photo-thermal conversion efficiency.Fluid (water) is straight
Forced flow in ribbed pipe, flow velocity is fast, temperature is low, less scaling, is also easily cleaned even if fouling.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural main section view of vacuum collector 1 of the present utility model；
Fig. 3 is sectional view at A-A in Fig. 2；
Fig. 4 is the utility model sun propagation path of light schematic diagram.
Embodiment
The technical scheme in the utility model embodiment is clearly and completely described below in conjunction with accompanying drawing.
As shown in figure 1, a kind of straight ribbed pipe inserts fin slot light collection evacuated solar collector, including vacuum collector 1, groove
Formula concentrator 2, the slot-type optical collector 2 is set using the groove mirror surface that sunshine can be reflected to aggregation, and inner surface is provided with
Strengthen the evaporation aluminium film of reflectivity.Vacuum collector 1 is arranged on the spot position of slot-type optical collector 2；The vacuum collector 1,
Slot-type optical collector 2 is fixedly mounted in the rotating device (not shown) of tracking position of sun, heat collector track the sun with up to
To maximum Heat-collecting effect.
Slot-type optical collector has metallic aluminium, Be and metal coating as reflecting material.The reflecting properties of silver and copper are good, but table
Face is oxidizable.Aluminium is the best metal of direct reflection sunlight in a metal, and 0.95 is can reach from the reflectivity of evaporation aluminium film,
Slightly below plate the 0.97 of silverskin.When selecting metallic plate as reflecting plate, it just also serves as base material and used.Elected reflecting material is aluminium
When, the diaphragm of surface mirror can use anode oxide film.
As shown in Figure 1, 2, the vacuum collector 1 includes the glass evacuated sleeve pipe 101 of through type, the glass evacuated set of through type
Pipe 101 includes outer layer glass tube 1011, inner layer glass tube 1012, is formed between outer layer glass tube 1011 and inner layer glass tube 1012
The straight ribbed pipe 102 passed through for thermal medium fluid is coated with vacuum layer 1013, inner layer glass tube 1012, straight ribbed pipe 102 passes through
Spring 103 is fixed on the axis of inner layer glass tube 1012, and installs sealing ring 104 at the two ends of inner side glass tube 1012.
As shown in figure 3, being disposed with two arc thermal insulation boards 105 in the vacuum layer 1013, thermal insulation board 105 is respectively along outer layer
The inner side of two ends outer layers glass tube 1011 of the diameter perpendicular to the minute surface line of symmetry of slot-type optical collector 2 of glass tube 1011, slot type
The minute surface direction of concentrator 2 is relative to be extended；The central angle of inner layer glass tube 1012 that two thermal insulation boards 105 are covered is 60 °, thermal insulation board
105 just irradiate to sun direct projection, and ensure that the sun propagation path of light for not blocking the reflection of slot-type optical collector 2.Thermal insulation board 105
Material is aluminium alloy, and thermal insulation board 105 is the reflecting surface with high reflectance with the corresponding one side of inner layer glass tube 1012, and outer
The corresponding one side of layer glass tube 1011 is the heat-absorbent surface provided with coating for selective absorption.Reflecting surface, which is provided with, has high reflection
The reflecting layer of rate, low-launch-rate characteristic, can secondary reflect to the flare of slot-type optical collector 2 at the back side of inner layer glass tube 1012
On, can improve vacuum collector 1 reception heat flow density it is uneven the problem of.And the inner layer glass for covering thermal insulation board 105
The external radiations heat energy in the part of pipe 1012 is largely reflected back on inner layer glass tube 1012, reduces the loss of heat.
The heat-absorbent surface of thermal insulation board 105 is provided with the selective absorbing painting in solar radiation wave band high-absorbility, low-launch-rate
Layer, the heat-insulated plate temperature of solar irradiation direct projection will raise, the part of inner layer glass tube 1012 that thermal insulation board is covered and thermal insulation board 105 it
Between the temperature difference reduce, Radiant exothermicity will be greatly decreased, thus reduce indirectly inner layer glass tube 1012 to external radiation
Heat waste.
Therefore thermal insulation board 105 is set up, although having sheltered from the sun direct projection spoke that portion inner layer glass tube 1012 can be received
Light is penetrated, the heat absorption of the inner layer glass tube 1012 of reduction is few, because the utility model increases sunshine absorption area, fin
106 and the outer surface of straight ribbed pipe 102 can plate spectrum selective paint, solar radiation photo-thermal conversion efficiency is improved, while significantly
Strengthen inner layer glass tube 1012 heat is lost in environment under radiation effects, and this that the thermal insulation board 105 set is reduced
The loss of kind of radiations heat energy is greater than the beam radia heat that the part of inner layer glass tube 1012 that thermal insulation board 105 covers is resulted in
Amount.
Two fins 106 are installed outside the straight ribbed pipe 102, two fins 106 are set along the straight radial direction of ribbed pipe 102
Put, in 120 ° of angles between two fins 106, angle angular bisector is consistent with the minute surface direction of slot-type optical collector 2, and and slot light collection
The cambered surface line of symmetry of device 2 is overlapped.Vacuum layer 1013 can eliminate the heat loss through convection loss of fin 106.The material of fin 106 is purple
Copper or aluminium, thickness are 0.08mm-1mm, and length is compared with the short 100mm of inner layer glass tube 1012.The fin 106 and straight ribbed pipe 102
Outer surface is coated with spectrum selective paint, by increasing sunshine absorption area, enhances thermal medium fluid and straight ribbed pipe 102
The convection heat transfer intensity of heat-absorbent surface, improves solar radiation photo-thermal conversion efficiency.Thermal medium fluid forces stream in straight ribbed pipe 102
Dynamic, flow velocity is fast, temperature is low, less scaling, is also easily cleaned even if fouling.
In slot light collection solar energy vacuum heat collecting device in actual solar heat power generation system engineering application, as the sun is high
Degree angle be continually changing, the slot light collection heat collector with need track the sun with reach maximum Heat-collecting effect.According to above-mentioned
It is required that the sunshine of direct projection will divide face equally parallel to 120 ° of two fins, 106 angle, and thermal insulation board 105 will be always just to the sun
Direct projection is irradiated, and ensure that the sun propagation path of light for not blocking the reflection of slot-type optical collector 2, so needing slot-type optical collector 2
It is integrated tracking mode, i.e. slot-type optical collector 2 with vacuum collector and is fixed together with vacuum heat collection pipe 1 and rotates the tracking sun,
This integral tracking mode operation is lasting convenient, and tracks of device facility structure is simple, easily fabricated.
In addition, the mirror surface that slot-type optical collector 2 of the present utility model can also increase particular design is set, thrown in script
Thing speculum two ends set the mirror surface of different radians, the secondary reflection of thermal insulation board 105 it is better.
Described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.Based on this
Embodiment in utility model, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belongs to the scope of the utility model protection.
Claims (7)
1. a kind of straight ribbed pipe inserts fin slot light collection evacuated solar collector, it is characterised in that including vacuum collector, slot type
Concentrator, the slot-type optical collector is set using the groove mirror surface that sunshine can be reflected to aggregation, the vacuum collector
It is arranged on the spot position of slot-type optical collector；
The vacuum collector includes the glass evacuated sleeve pipe of through type, and the glass evacuated sleeve pipe of through type includes outer layer glass tube, interior
Layer glass tube, forms between outer layer glass tube and inner layer glass tube and is coated with vacuum layer, inner layer glass tube for thermal medium stream
The straight ribbed pipe that body passes through, straight ribbed pipe is fixed on inner layer glass tube axis by spring, and installs close at inner side glass tube two ends
Seal；Two arc thermal insulation boards are disposed with the vacuum layer, thermal insulation board is respectively along outer layer glass tube perpendicular to slot light collection
The two ends outer layers glass tube inner side of the diameter of device minute surface line of symmetry, the relative extension in slot-type optical collector minute surface direction；
Two fins are installed, two fins are set along straight ribbed pipe radial direction outside the straight ribbed pipe, two fin angles point
Linea angulata is consistent with slot-type optical collector minute surface direction, and is overlapped with slot-type optical collector minute surface line of symmetry.
2. straight ribbed pipe according to claim 1 inserts fin slot light collection evacuated solar collector, it is characterised in that described
The inner layer glass tube central angle of two thermal insulation board coverings is 60 °；In 120 ° of angles between described two fins.
3. straight ribbed pipe according to claim 1 inserts fin slot light collection evacuated solar collector, it is characterised in that described
Vacuum collector, slot-type optical collector are fixedly mounted on the rotating device of tracking position of sun.
4. inserting fin slot light collection evacuated solar collector according to any described straight ribbed pipes of claim 1-3, its feature exists
In evaporation aluminium film of the slot-type optical collector inner surface provided with enhancing reflectivity.
5. inserting fin slot light collection evacuated solar collector according to any described straight ribbed pipes of claim 1-3, its feature exists
In the fin material is red copper or aluminium, and thickness is 0.08mm-1mm, length 100mm short compared with inner layer glass tube.
6. inserting fin slot light collection evacuated solar collector according to any described straight ribbed pipes of claim 1-3, its feature exists
In the thermal insulation board material is aluminium alloy, and thermal insulation board one side corresponding with inner layer glass tube is the reflection with high reflectance
Face, one side corresponding with outer layer glass tube is the heat-absorbent surface provided with coating for selective absorption.
7. inserting fin slot light collection evacuated solar collector according to any described straight ribbed pipes of claim 1-3, its feature exists
In the fin and straight ribbed pipe outer surface are coated with spectrum selective paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720025766.4U CN206387126U (en) | 2017-01-10 | 2017-01-10 | Straight ribbed pipe inserts fin slot light collection evacuated solar collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720025766.4U CN206387126U (en) | 2017-01-10 | 2017-01-10 | Straight ribbed pipe inserts fin slot light collection evacuated solar collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206387126U true CN206387126U (en) | 2017-08-08 |
Family
ID=59493140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720025766.4U Expired - Fee Related CN206387126U (en) | 2017-01-10 | 2017-01-10 | Straight ribbed pipe inserts fin slot light collection evacuated solar collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206387126U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679196A (en) * | 2017-01-10 | 2017-05-17 | 福建工程学院 | Straight ribbed pipe fin inserting trough-type condensation vacuum solar heat collector |
| CN114543370A (en) * | 2022-03-17 | 2022-05-27 | 山东瑞光新能源科技有限公司 | Combined high-strength solar heat collecting pipe |
-
2017
- 2017-01-10 CN CN201720025766.4U patent/CN206387126U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679196A (en) * | 2017-01-10 | 2017-05-17 | 福建工程学院 | Straight ribbed pipe fin inserting trough-type condensation vacuum solar heat collector |
| CN114543370A (en) * | 2022-03-17 | 2022-05-27 | 山东瑞光新能源科技有限公司 | Combined high-strength solar heat collecting pipe |
| CN114543370B (en) * | 2022-03-17 | 2024-04-02 | 山东瑞光新能源科技有限公司 | Combined high-strength solar heat collecting tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170808 Termination date: 20200110 |