CN208887132U - A kind of photovoltaic and photothermal solar heat collector - Google Patents
A kind of photovoltaic and photothermal solar heat collector Download PDFInfo
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- CN208887132U CN208887132U CN201821459279.XU CN201821459279U CN208887132U CN 208887132 U CN208887132 U CN 208887132U CN 201821459279 U CN201821459279 U CN 201821459279U CN 208887132 U CN208887132 U CN 208887132U
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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
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Abstract
A kind of photovoltaic and photothermal solar heat collector, belong to photovoltaic equipment technical field, it is made of glass cover-plate, solar panel, multi-functional adhesive layer, variable section runner collecting plate, cold and hot fluid header and lagging casing, passes through the lamination connection of multi-functional adhesive layer between solar panel and variable section runner collecting plate.Variable section runner collecting plate contains a plurality of variable cross-section fluid channel parallel with one another, micro- rib group of surface density change of gradient is disposed in variable cross-section fluid channel, cold and hot fluid header is placed in the both ends of lagging casing inner space and is connected to respectively into and out of pipe with variable section runner collecting plate by fluid；The present apparatus realizes uniform heat exchange and augmentation of heat transfer on Working fluid flow direction；Micro- rib group surface is handled through Drag Reduction, and the flow resistance that its introducing is effectively reduced increases effect；Modified synthesis glue film makes the heat exchange property of device and operational reliability be improved.
Description
Technical field
The utility model belongs to photovoltaic equipment technical field, is related to a kind of photovoltaic and photothermal solar heat collector,
Particularly relate to it is a kind of can be with the photovoltaic and photothermal solar heat collector of comprehensive utilization system for heat energy for solar energy.
Background technique
Solar energy is a kind of environmentally friendly renewable energy, this obtains solar energy power generating worldwide
Extensive utilization.But common photovoltaic cell can only convert 4%~17% solar radiant energy to electric energy, deduct reflecting part
Point, the solar energy for having more than 50% is converted into thermal energy, and incident photon-to-electron conversion efficiency is lower；Meanwhile the heat of photovoltaic cell release is direct
Cause its operating temperature constantly soaring, reaches as high as more than 80 degrees Celsius.Studies have shown that the rising of battery temperature will make its efficiency by
According to every degree Celsius 0.4% of speed decline；In addition, thermal stress caused by photovoltaic cell component long-term work at high operating temperatures
The permanent damage that will lead to assembly module structure influences photovoltaic power generation reliability of operation.
In order to improve the whole efficiency of energy utilization of solar power generation, solar energy can be met the tendency of with comprehensive utilization system for heat energy
And it gives birth to.The system is to be laid with cooling medium runner at traditional photovoltaic cell back side, by cooling medium (such as water, air)
Heat is taken away in forced-convection heat transfer, reduces the temperature levels of solar panel, improves generating efficiency.Meanwhile by cooling medium
The heat taken away is used by certain form, to realize that solar energy can be with the comprehensive utilization of thermal energy.It is noticeable
It is to undertake that photovoltaic cell is cooling and the core component of heat recovery task is referred to as photovoltaic photo-thermal heat collector in the system, changes
Hot property directly affects solar energy can be with the efficiency of energy utilization of comprehensive utilization system for heat energy.However, traditional is parallel equal
Even multi-channel plate type heat collector does not consider that fluid media (medium) entrance rises the problem of bring exchange capability of heat unevenness to outlet temperature,
To cause the generation of the uneven even hot localised points of photovoltaic battery panel width the temperature in the face, generating efficiency to photovoltaic cell component and
Reliability is brought a negative impact.Furthermore the fluid forced-convection heat transfer performance in heat collector channel is also urgently promoted.In addition, too
Positive energy luminous energy generallys use EVA adhesive film with comprehensive utilization system for heat energy and couples TPT insulating materials as boundary material to photovoltaic electric
Pond plate is bonded with collecting plate, but there is also the problems of heat resistance and heating conduction difference for EVA adhesive film, comprehensive to electricity, heat
It closes utilization efficiency and heat collector operational reliability has an adverse effect.
Utility model content
The purpose of this utility model aiming at above-mentioned the deficiencies in the prior art, provide a kind of compact-sized, reliable operation,
Photovoltaic and photothermal solar heat collector convenient for installation and maintenance, the device can effectively improve solar photovoltaic cell panel breadth temperature
Uniformity and promote solar energy can be with the efficiency of energy utilization of comprehensive utilization system for heat energy.
The technical solution of the utility model is: a kind of photovoltaic and photothermal solar heat collector, including lagging casing, bracket,
The glass cover-plate on solar panel is arranged in solar panel, and the cold fluid header of lagging casing one end is arranged in, with
And the hot fluid header of the lagging casing other end is set；It is characterized by: being additionally provided with variable section runner in the lagging casing
Collecting plate, the variable section runner collecting plate are made of cover board, micro- rib group and bottom plate, and the cover board and bottom plate fold to form flowing
Heat exchanger chamber, the fluid heat transfer cavity are made of several fluid channels parallel with one another, and every fluid channel enters
Mouth end passes through fluid inlet tubes and is connected with cold fluid header, and the outlet end of every fluid channel passes through fluid outlet
Pipe is connected with hot fluid header, and the sectional area of every fluid channel changes along the Working fluid flow direction formula that tapers off；It is described
Micro- rib group, which connects, to be arranged between cover board and bottom plate, and micro- rib group is made of multiple rows of micro- rib, and the adjacent micro- rib of two rows is interlaced
Setting, the surface density of micro- rib group are linearly increased along Working fluid flow direction；The variable section runner collecting plate passes through more function
Can adhesive layer and solar panel lamination connect, the multi-functional adhesive layer by TPT insulating layer and setting TPT insulating layer just
The adhesive film of reverse side is constituted.
The cross section of the fluid channel is rectangle, and the sectional area of fluid channel reduces along Working fluid flow dimension linear.
The ratio between the arrival end of the fluid channel and the cross-sectional area of outlet end are between 2~5.
The surface density of micro- rib group increases along Working fluid flow dimension linear, the height of micro- rib and the height of flow channel cross-sections
Degree variation matches.
The cross sectional shape of micro- rib is one of tear drop shape, pancake or sinusoidal, the equivalent diameter in micro- rib section
Within 2mm.
The surface of micro- rib applies and is covered with drag reduction layer, and drag reduction thickness degree is in 20~80 μ ms, and drag reduction layer is by free-floride
Super hydrophobic material is made.
The utility model has the following beneficial effects: a kind of photovoltaic and photothermal solar heat collector provided by the utility model, this
Apparatus structure is novel, and working principle is clear, the change reduced by using cross-sectional area along cooling fluid Working fluid flow dimension linear
Section runner couples surface density along the increased micro- rib group of cooling fluid Working fluid flow direction gradient, has effectively contained traditional smooth equal
Even section runner heat transfer intensity because caused by reducing along journey heat transfer temperature difference reduces, and realizes uniformly changing on Working fluid flow direction
Heat and augmentation of heat transfer；Micro- rib surface coats floride-free super-hydrophobic material drag reduction layer, peomotes the wall slippage of fluid working substance, from
And on the basis of guaranteeing micro- rib group augmentation of heat transfer, it effectively reduces the flow resistance that micro- rib group introduces and increases effect；In addition, using T-
The modified synthesis glue film that ZnOw, nanoscale AlN and EVA adhesive film are combined, it is steady can to enhance adhesive layer thermal conductivity, insulating properties and heat
It is qualitative, to be conducive to the promotion of photovoltaic/photo-thermal heat collector heat exchange property and operational reliability.
Detailed description of the invention
Fig. 1 is utility model device external structure schematic diagram.
Fig. 2 is the side, sectional structural schematic diagram of utility model device.
Fig. 3 is enlarged structure schematic diagram at the I in Fig. 2.
Fig. 4 is utility model device entirety decomposition texture schematic diagram.
Fig. 5 is utility model device lagging casing interior laminate layer structural schematic diagram.
Fig. 6 is variable section runner structural schematic diagram in utility model device.
Fig. 7 is enlarged structure schematic diagram at the II in Fig. 6.
Fig. 8 is the cross sectional shape schematic diagram of micro- rib in the present apparatus.
In figure: glass cover-plate 1, solar panel 2, adhesive film 3, insulating layer 4, cover board 5, micro- rib group 6, bottom plate 7, fluid
Flow to 8, cold fluid header 9, hot fluid header 10, lagging casing 11, bracket 12, fluid inlet tubes 13, fluid outlet pipe 14, more
Function adhesive layer 15, variable section runner collecting plate 16, drag reduction layer 17.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Figs. 1-5, a kind of photovoltaic and photothermal solar heat collector, including glass cover-plate 1, solar panel 2, glue
Film layer 3, insulating layer 4, cover board 5, micro- rib group 6, bottom plate 7, cold fluid header 9, hot fluid header 10, lagging casing 11, bracket 12,
Fluid inlet tubes 13, fluid outlet pipe 14.
As shown in Figs. 1-5, a kind of photovoltaic and photothermal solar heat collector, glass cover-plate 1, solar panel 2, variable cross-section
Runner collecting plate 16 is successively fixed in the lagging casing 11 along the lateral backlight side the Xiang Guangyi of the heat collector；Variable cross-section
Runner collecting plate 16 is machined with by the 7 coupling welding backlight side of bottom plate of a plurality of variable cross-section fluid channel parallel with one another of surface etch
The cover board 5 of micro- rib group 6 and formed；Pass through multi-functional adhesive layer 15 between bend flow channel section collecting plate 16 and solar panel 2
It is connected and fixed using lamination；In the card slot for being mounted on lagging casing 11 chimeric with solar panel 2 of glass cover-plate 1；Cold,
Hot fluid header 9,10 is respectively by fluid import and export pipe 13,14 using screwed connection by the way of and variable section runner collecting plate
Corresponding variable cross-section fluid channel connection in 16；Phenolic foam foaming, which is inwardly finally filled, from 11 bottom of lagging casing forms heat preservation
Layer covers lagging casing bottom plate and forms heat collector overall structure；By the pressing plate on bracket 12 by the heat collector with certain work
Installation is fixed as angle.The cross section of variable cross-section fluid channel is rectangle, and depth reduces along Working fluid flow dimension linear,
So that the ratio between runner import and export cross-sectional area is greater than 1.The flow velocity on flow direction can be improved in variable cross-section fluid channel, to subtract
Featheredge interlayer is strengthened along journey Local Heat Transfer intensity, and then alleviates traditional smooth even section runner because reducing along journey heat transfer temperature difference
Caused by heat transfer intensity reduce problem, achieve the purpose that uniform heat exchange on Working fluid flow direction.In addition, it is contemplated that heat dissipation effect
And the influence of processing technology, the ratio between variable cross-section fluid channel import and export cross-sectional area should control between 2~5, specific size can
It is adjusted according to actual radiating requirements.
If Fig. 2-8 shows, a kind of photovoltaic and photothermal solar heat collector, 5 backlight side of cover board is machined into using ultraprecise
Multiple rows of micro- rib forms micro- rib group 6, and the surface density of micro- rib group 6 increases according to runner heat transfer characteristic along Working fluid flow dimension linear, and
The adjacent micro- rib of two rows is arranged using alternative form.The effective heat exchange area in coolant flow channel is just considerably increased in this way and strengthens stream
Field internal disturbance, realizes the purpose of enhanced heat exchange.Furthermore it equally can be enhanced using along the linearly increasing micro- rib group of journey surface density
The uniform heat exchange of runner entirety is realized along the Local Heat Transfer intensity of journey in channel.
As shown in fig. 6, a kind of photovoltaic and photothermal solar heat collector, first be specifically placed adjacent at feeder connection
Micro- rib group number of rows below block solar battery sheet position is minimum, later micro- rib group number of rows below every piece of solar battery sheet
1 row is all successively increased, and is evenly arranged below corresponding place solar battery sheet.
As shown in figure 3, a kind of photovoltaic and photothermal solar heat collector, multi-functional adhesive layer 15 is pressed from both sides by two layers of adhesive film 3
Hold a layer insulating 4 composition.Adhesive film 3 is combined by the modification of T-ZnOw, nanoscale AlN and EVA adhesive film.By T-ZnOw,
Nanoscale AlN is compound with EVA adhesive film progress by a certain percentage, takes full advantage of the excellent heat conductivity of T-ZnOw, nanoscale AlN
Can, while the fundamental characteristics of original lamination glue film in photovoltaic cell component is remained again, adhesive film 3 is combined with insulating layer 4 can shape
At the good multi-functional adhesive layer 15 of the various aspects such as thermal conductivity, insulating properties, thermal stability, and then be conducive to photovoltaic/light
The promotion of hot heat collector heat exchange property and operational reliability.Both T-ZnOw, nanoscale AlN ratio is no more than 15%.
As shown in fig. 7, a kind of photovoltaic and photothermal solar heat collector, is coated using spray coating method on micro- 6 surface of rib group
Floride-free super-hydrophobic material drag reduction layer 17.Floride-free super-hydrophobic material have environmental-friendly, adhesive force it is strong, can be by adjusting the dense of solution
The advantage than obtaining high stability is spent, the wall slippage that micro- 6 surface of rib group peomotes fluid working substance is coated onto, thus
On the basis of guaranteeing micro- rib group augmentation of heat transfer, effectively reduces the flow resistance that micro- rib group 6 introduces and increase effect；Floride-free super-hydrophobic material
Material constituent is alkyl carboxylic acid metallic salt, such as Cu [CH3(CH2)10-COO]2、Cd[CH3(CH2)10COO]2Deng；Spraying
Method has easy to operate, suitable the advantages of producing in enormous quantities.Floride-free super-hydrophobic material drag reduction thickness degree should be controlled at 20~80 μm
In range.
As shown in figure 8, a kind of photovoltaic and photothermal solar heat collector, micro- ribbed shape can be sinusoidal (A of Fig. 8), tear
Shape (B of Fig. 8) or pancake (C of Fig. 8) are dripped, equivalent diameter preferably controls within 2mm.Such rib type helps to reduce
The formation of micro- rib tail portion vortex weakens micro- rib bring flowing dissipation and increases effect, and the heat exchange for reducing cooling medium in runner is dead
Area.
The variable section runner coupling that the utility model is reduced using cross-sectional area along cooling fluid Working fluid flow dimension linear
Surface density along the increased micro- rib group of cooling fluid Working fluid flow direction gradient, effectively contained traditional smooth even section runner because
Along journey heat transfer temperature difference reduce caused by heat transfer intensity reduce, realize uniform heat exchange on Working fluid flow direction and strengthen and pass
Heat；Micro- rib surface coats floride-free super-hydrophobic material drag reduction layer, peomotes the wall slippage of fluid working substance, thus micro- in guarantee
On the basis of rib group's augmentation of heat transfer, effectively reduces the flow resistance that micro- rib group introduces and increase effect；In addition, using T-ZnOw, nanometer
The modified synthesis glue film that grade AlN and EVA adhesive film are combined, can enhance adhesive layer thermal conductivity, insulating properties and thermal stability, thus
Be conducive to the promotion of photovoltaic/photo-thermal heat collector heat exchange property and operational reliability.
Claims (6)
1. a kind of photovoltaic and photothermal solar heat collector, including lagging casing (11), bracket (12), solar panel (2), if
The glass cover-plate (1) on solar panel (2) is set, the cold fluid header (9) in lagging casing (11) one end is set, and
Hot fluid header (10) in lagging casing (11) other end is set；It is characterized by: being additionally provided in the lagging casing (11)
Variable section runner collecting plate (16), the variable section runner collecting plate (16) is by cover board (5), micro- rib group (6) and bottom plate (7) structure
At the cover board (5) and bottom plate (7) fold to form fluid interchange cavity, and the fluid heat transfer cavity is parallel with one another by several
Fluid channel composition, the arrival end of every fluid channel passes through fluid inlet tubes (13) and cold fluid header (9) phase
Connection, the outlet end of every fluid channel pass through fluid outlet pipe (14) and are connected with hot fluid header (10), and every
The sectional area of the fluid channel along Working fluid flow direction taper off formula variation；Micro- rib group (6) connection is arranged in cover board (5)
Between bottom plate (7), micro- rib group (6) is made of multiple rows of micro- rib, the interlaced setting of the adjacent micro- rib of two rows, micro- rib group
(6) surface density is linearly increased along Working fluid flow direction；The variable section runner collecting plate (16) passes through multi-functional adhesive layer
(15) it is connected with solar panel (2) lamination, the multi-functional adhesive layer (15) is exhausted in TPT by TPT insulating layer (4) and setting
The adhesive film (3) of edge layer (4) front and back sides is constituted.
2. a kind of photovoltaic and photothermal solar heat collector according to claim 1, it is characterised in that: the fluid channel
Cross section is rectangle, and the sectional area of fluid channel reduces along Working fluid flow dimension linear.
3. a kind of photovoltaic and photothermal solar heat collector according to claim 1, it is characterised in that: the fluid channel
The ratio between arrival end and the cross-sectional area of outlet end are between 2~5.
4. a kind of photovoltaic and photothermal solar heat collector according to claim 1, it is characterised in that: micro- rib group (6)
Surface density along Working fluid flow dimension linear increase, the height of micro- rib and the height change of flow channel cross-sections match.
5. a kind of photovoltaic and photothermal solar heat collector according to claim 1, it is characterised in that: the section of micro- rib
Shape is one of tear drop shape, pancake or sinusoidal, and the equivalent diameter in micro- rib section is within 2mm.
6. a kind of photovoltaic and photothermal solar heat collector according to claim 1, it is characterised in that: the surface of micro- rib
Painting is covered with drag reduction layer (17), and drag reduction layer (17) thickness is in 20~80 μ ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821459279.XU CN208887132U (en) | 2018-09-06 | 2018-09-06 | A kind of photovoltaic and photothermal solar heat collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821459279.XU CN208887132U (en) | 2018-09-06 | 2018-09-06 | A kind of photovoltaic and photothermal solar heat collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208887132U true CN208887132U (en) | 2019-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821459279.XU Withdrawn - After Issue CN208887132U (en) | 2018-09-06 | 2018-09-06 | A kind of photovoltaic and photothermal solar heat collector |
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| CN (1) | CN208887132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895683A (en) * | 2018-09-06 | 2018-11-27 | 扬州大学 | A kind of photovoltaic and photothermal solar heat collector |
-
2018
- 2018-09-06 CN CN201821459279.XU patent/CN208887132U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895683A (en) * | 2018-09-06 | 2018-11-27 | 扬州大学 | A kind of photovoltaic and photothermal solar heat collector |
| CN108895683B (en) * | 2018-09-06 | 2019-10-15 | 扬州大学 | A kind of photovoltaic and photothermal solar heat collector |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190521 Effective date of abandoning: 20191015 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190521 Effective date of abandoning: 20191015 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |