CN208296347U - A kind of photovoltaic and photothermal integral device - Google Patents
A kind of photovoltaic and photothermal integral device Download PDFInfo
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- CN208296347U CN208296347U CN201820854964.6U CN201820854964U CN208296347U CN 208296347 U CN208296347 U CN 208296347U CN 201820854964 U CN201820854964 U CN 201820854964U CN 208296347 U CN208296347 U CN 208296347U
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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
The utility model discloses a kind of photovoltaic and photothermal integral devices, it include: Cadimium telluride thin film photovoltaic module and solar energy heating device assembly, the Cadimium telluride thin film photovoltaic component encapsulating is in the top of the solar energy heating device assembly, the back side of the Cadimium telluride thin film photovoltaic module and the solar energy heating device assembly constitute heat-insulated cavity, and the front of the Cadimium telluride thin film photovoltaic module is for directly absorbing sunray；The light transmittance of the Cadimium telluride thin film photovoltaic module is 30%~100%.Pass through the transmittance characteristics having using Cadimium telluride thin film photovoltaic module, so that the light that Cadimium telluride thin film photovoltaic module transmission can be absorbed in solar energy heating device assembly carries out heat production, the heating efficiency for improving solar energy heating device assembly is effectively utilized solar energy heating device assembly.
Description
Technical field
The utility model relates to technical field of solar, more specifically to a kind of photovoltaic and photothermal integral device.
Background technique
With the rapid development of social economy, environmental pollution and energy shortage have been the major tests that human survival faces,
Finding alternative, clean energy resource becomes the important means for solving crisis.In numerous new energy, solar energy is with its clean nothing
Pollution, the advantages such as rich reserves become the leading army of new energy.
Currently, solar energy is generally utilized with solar photovoltaic generation system and solar water heating system, but the sun
Energy thermal water utilization conversion ratio is about 60%~85%, and the transfer efficiency of photovoltaic is about 6~18%, and transfer efficiency is not
Height, and since the purchase early period of solar photovoltaic generation system and solar water heater installation cost is higher, solar water
The installation utilization rate of system and electricity generation system in urban architecture is not also high, is the popularization of solar water heating system and electricity generation system
Using resistance is increased, it is unfavorable for the progress of energy-saving and emission-reduction.
To overcome disadvantages described above, solar energy utilization system in the prior art organically combines photovoltaic and photo-thermal,
The expansion for realizing function, plays the high efficiency and cost advantage of opto-thermal system, overcomes the inefficient high-cost disadvantage of photovoltaic module,
Improve cost performance.But after photovoltaic generating system and solar water heater combine in the prior art, reduce solar heat
The efficiency of water system, it is difficult to be effectively utilized solar water heating system.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of photovoltaic and photothermal integral device, it is intended to solve existing
Have after photovoltaic generating system and solar water heater combine in technology, reduces the efficiency of solar water heating system, it is difficult to make
The technical issues of solar water heating system is effectively utilized.
A kind of photovoltaic and photothermal integral device provided by the utility model, comprising:
Cadimium telluride thin film photovoltaic module and solar energy heating device assembly, the Cadimium telluride thin film photovoltaic component encapsulating is in described
The top of solar energy heating device assembly, the front of the Cadimium telluride thin film photovoltaic module is for directly absorbing sunray；
The light transmittance of the Cadimium telluride thin film photovoltaic module is 30%~100%.
Optionally, the back side of the Cadimium telluride thin film photovoltaic module and the solar energy heating device assembly constitute incubation cavity
Body.
Optionally, the Cadimium telluride thin film photovoltaic module includes the glassy layer set gradually from top to bottom, electrically conducting transparent oxygen
Compound layer, cadmium sulfide Window layer, cadmium telluride absorbed layer, back contact and back electrode.
Optionally, the back side of the back electrode is additionally provided with backboard, and the backboard is arranged with terminal box, the terminal box
It connect, is used for the Cadimium telluride thin film photovoltaic with the lead-out wire of the Cadimium telluride thin film photovoltaic module and outside line respectively
The electric energy that component generates leads to the outside line.
Optionally, the solar energy heating device assembly includes the frame set gradually from top to bottom, the plating of anodic oxidation aluminium sheet
Cadmium heat-sink shell, insulating layer and shell.
Optionally, the frame is set to the back contact and the anodic oxidation aluminium sheet cadmium plating heat-sink shell surrounding, uses
It is integrated in by the Cadimium telluride thin film photovoltaic module and solar energy heating device assembly connection.
Optionally, heat-sink shell includes absorber plate, comb and collector, and the comb longitudinal arrangement is in the surrounding of the absorber plate
Fluid channel is constituted, the upper and lower surface that the collector is laterally arranged in the absorber plate constitutes fluid heat recipient passage.
Optionally, on the absorber plate be coated with absorber coatings, the absorber coatings include non-selective absorber coatings and
Coating for selective absorption, the non-selective absorber coatings are the optical characteristics absorber coatings unrelated with radiation wavelength, the choosing
Selecting property absorber coatings are optical characteristics absorber coatings relevant to radiation wavelength.
Optionally, it is also covered with transparent cover plate on the absorber plate, for passing through after preventing the heat absorption plate temperature from increasing
Convection current and radiant flux loss of heat amount.
Optionally, the transparent cover plate includes low iron plate glass cover board or glass epoxy cover board.
As can be seen from the above technical solutions, the utility model has the following beneficial effects:
By Cadimium telluride thin film photovoltaic component encapsulating in the top of solar energy heating device assembly in the utility model, so that the sun
Light continues heat absorption by solar energy heating device assembly and utilizes, pass through through Cadimium telluride thin film photovoltaic module and after being utilized power generation
The transmittance characteristics having using Cadimium telluride thin film photovoltaic module, so that Cadimium telluride thin film can be absorbed in solar energy heating device assembly
The light that photovoltaic module penetrates carries out heat production, improves the heating efficiency of solar energy heating device assembly, makes solar thermal collector group
Part is effectively utilized.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is a kind of structural schematic diagram of photovoltaic and photothermal integral device provided by the embodiment of the utility model；
Fig. 2 is a kind of structural schematic diagram of Cadimium telluride thin film photovoltaic module provided by the embodiment of the utility model；
Fig. 3 is a kind of structural schematic diagram of solar energy heating device assembly provided by the embodiment of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.
It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this
Utility model.It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or it may be simultaneously present centering elements.When an element is known as " being connected to " another element, it can
To be directly to another element or may be simultaneously present centering elements.It should also be noted that, the utility model is real
Apply the positional terms such as left and right, upper and lower in example, be only each other relative concept or with the normal operating condition of product for reference
, and should not be regarded as restrictive.
Through utility model people the study found that the helioplant that most photovoltaic and photothermal combines at present uses crystal
Silicon component and solar heat water assembly combine.Since the backboard of Crystalline Silicon PV Module is made of opaque EVA offset plate,
And crystal silicon chip itself is also lighttight, so the back side of crystalline silicon component is lighttight.Crystalline silicon component and solar energy
The helioplant that hot water component is bonded is that solar energy irradiation power generation is absorbed by crystalline silicon component, then solar heat
Water assembly is entirely the heat by the conduction of absorbing crystal silicon component backboard, carries out the secondary use of heat.Solar heat water assembly
Upper no sunlight is irradiated to, i.e., it is entirely absorbing crystal that solar heat water assembly, which does not have sunlight absorbing layer, only copper pipe heat transfer layer,
The temperature of silicon component backboard achievees the effect that water heating.For the solar water heater individually heated, this sun
The thermal transition efficiency of energy hot water component is greatly reduced, and causes the practical efficiency of helioplant lower.In view of this, this
Utility model embodiment provide it is a kind of can minimally reduce photovoltaic and photothermal to the heat production efficiency of solar heat water assembly
Integrated apparatus.
Refering to fig. 1, a kind of photovoltaic and photothermal integral device provided by the embodiment of the utility model, comprising:
Cadimium telluride thin film photovoltaic module 1 and solar energy heating device assembly 2, the Cadimium telluride thin film photovoltaic module 1 are packaged in
The top of the solar energy heating device assembly 2, the front of the Cadimium telluride thin film photovoltaic module 1 is for directly absorbing sunlight
Line；The light transmittance of the Cadimium telluride thin film photovoltaic module 1 is 30%~100%.
Wherein, Cadimium telluride thin film photovoltaic module 1 is a kind of film photovoltaic obtained using transparent or semitransparent glass preparation
Battery component, light transmittance can accomplish 30%~100% according to different processing technologies, it can have high light transmission
Rate.It should be noted that Cadimium telluride thin film photovoltaic module 1 is the difference because of cadmium sulfide distillation spraying process, and lead to light transmittance
Different.In traditional sense, the light transmittance of Cadimium telluride thin film photovoltaic module 1 more high optoelectronic conversion ratio is lower, and light transmittance is lower
Then illustrate to apply thickness, photoelectric conversion rate is high.But with the development of technology, the technology of Cadimium telluride thin film photovoltaic module 1 is not yet
Disconnected upgrading, may be implemented high transparency and has the group of high-conversion rate, so that the Cadimium telluride thin film photovoltaic module 1 of 100% light transmission
Photoelectric conversion rate also has 10% or more.It therefore, can basis when selecting the Cadimium telluride thin film photovoltaic module 1 of different light transmittances
The efficiency for the solar energy heating device assembly 2 that the photoelectric conversion efficiency and light transmittance of Cadimium telluride thin film photovoltaic module 1 are influenced into
Row comprehensively considers, so that selection is best suitable for the combination of economic benefit.Compared to crystalline silicon component, Cadimium telluride thin film photovoltaic module 1
Have more translucency, it is meant that there are more visible lights that can project the sun through Cadimium telluride thin film photovoltaic module 1
It can be not the mode of heat transfer to carry out the absorption of heat in thermal-arrest device assembly 2.Therefore, solar energy heating device assembly 2
Heat production water effect is more preferable.
In addition, the practice by utility model people is learnt, when component temperature rises, all solar batteries will will appear
Performance loss, this is mainly due to the declines of solar battery open-circuit voltage.Temperature coefficient (Temperature
Coefficient) refer to the rate that the output power of solar cell module changes with the raising of operating temperature.It is general and
Speech, the temperature coefficient of crystal silicon solar battery component is -0.45%/DEG C to -0.50%/DEG C, i.e., component temperature is every increases 1
DEG C, the output power of solar cell module reduces by 0.45% to 0.50%.And the temperature of cadmium telluride diaphragm solar battery component
Degree coefficient about -0.25%/DEG C, be at half than crystal silicon solar energy battery or so, so more suitable for high temperature, desert and humidity
The harsh application environment such as area.Lower temperature coefficient means the output power of cadmium telluride diaphragm solar battery component less
It is influenced vulnerable to temperature, more energy can be provided at higher temperatures by also just represent cadmium telluride diaphragm solar battery component
Amount.It is shown through experimental data, when battery component temperature is lower than 25 DEG C, the performance of polycrystalline silicon solar cell module
(being indicated with the ratio between DC power supply output power and the rated power under standard test condition) is better than Cadimium telluride thin film too
Positive energy battery component；When battery component temperature is higher than 25 DEG C, the performance of cadmium telluride diaphragm solar battery component is better than
Polycrystalline silicon cells.Such as when battery component temperature reaches 65 DEG C (40 DEG C higher than normal temperature), conventional crystal silicon solar electricity
The output power of pond component reduces 20%, and cadmium telluride diaphragm solar battery component only reduces about 10%.This means that
In the hot summer or high temperature area, the actual power generation of cadmium telluride solar battery are higher than crystal silicon solar energy battery.
Further, since solar cell module, in power generation operation, itself can also generate heat, so that the temperature of itself increases, therefore,
Temperature of the solar cell module within most of the time can be higher than 25 DEG C, i.e. cadmium telluride diaphragm solar battery component exists
Generated output in most of the time is all larger than crystal silicon solar battery component.
Have benefited from the heat resistance of Cadimium telluride thin film photovoltaic module 1, further, can be set in the utility model embodiment
The back side and the solar energy heating device assembly 2 for setting the Cadimium telluride thin film photovoltaic module 1 constitute heat-insulated cavity, it can in tellurium
The back side of cadmium membrane photovoltaic component 1 and solar energy heating device assembly 2 are encapsulated, and integrated setting is entire heat-insulated cavity.
Setting heat-insulated cavity for Cadimium telluride thin film photovoltaic module 1 and solar energy heating device assembly 2 can be by Cadimium telluride thin film photovoltaic group
The heat at 1 back side of part is transmitted in solar energy heating device assembly 2, while solar energy heating device assembly 2 can also be passed through radiation
Get up with the heat storage for reflecting distributed, prevents solar energy heating device assembly 2 to be lost excessive heat, finally by solar energy collection
Hot device assembly 2 gradually absorbs.The setting of heat-insulated cavity avoids the loss of heat, also not to Cadimium telluride thin film photovoltaic module 1
Efficiency generate excessive influence, further increase the heat production efficiency of solar energy heating device assembly 2.It should be noted that
It can also be not provided with protecting between Cadimium telluride thin film photovoltaic module 1 and solar energy heating device assembly 2 in the utility model embodiment
Photovoltaic power generation and photo-thermal heat production equally may be implemented in warm cavity, but since the heat that solar energy heating device assembly 2 sheds can be straight
It connects and is transmitted on Cadimium telluride thin film photovoltaic module 1, thus 1 temperature of Cadimium telluride thin film photovoltaic module can be made sharply to increase, thus
Influence generating efficiency.
It specifically, can be referring to Fig.2, Fig. 2 be a kind of Cadimium telluride thin film photovoltaic module provided by the embodiment of the utility model
Structural schematic diagram, the Cadimium telluride thin film photovoltaic module 1 includes the glassy layer 11, the electrically conducting transparent oxygen that set gradually from top to bottom
Compound layer 12, cadmium sulfide Window layer 13, cadmium telluride absorbed layer 14, back contact 15 and back electrode.
Wherein, glassy layer 11 is referred to as glass substrate, glassy layer 11 mainly to the battery for power generation play bracket,
Incident sunlight and the effect for preventing pollution.Glassy layer 11 can be using the tempered glass of ultrawhite tempering processing, and light transmittance is necessary
Higher than 91% or more, can with vinyl-vinyl acetate copolymer (ethylene-vinyl acetate copolymer,
EVA tempered glass, cell piece and backboard are adhesively fixed).Including transparent conducting oxide layer 12, i.e., bright electric conductive oxidation film glass,
What is mainly served is light transmission and conduction.In addition, cadmium sulfide Window layer 13 is a kind of n-type semiconductor, formed with p-type cadmium telluride
P-n junction.Cadmium telluride absorbed layer 14 is the main body light-absorption layer of battery, and the p-n junction formed with the cadmium sulfide Window layer of N-shaped is entire electricity
The most crucial part in pond.Back contact 15 is with the effect of back electrode primarily to reducing contact gesture of the cadmium telluride with metal electrode
It builds, extracted current, metal electrode and cadmium telluride is made to form Ohmic contact.
Further, the back side of the back electrode is additionally provided with backboard, and the backboard is arranged with terminal box, the wiring
Box is connect with the lead-out wire of the Cadimium telluride thin film photovoltaic module 1 and outside line respectively, is used for Cadimium telluride thin film photovoltaic
The electric energy that component 1 generates leads to the outside line.
Wherein, backboard is mainly used for sealing, insulation and waterproof；Terminal box is primarily used to protect entire electricity generation system, rises
To the effect of electric current terminal.If photovoltaic module is short-circuit, terminal box disconnects short circuit battery string automatically, prevents from burning out whole system
It connects, it is crucial that the selection of diode, different according to the type of cell piece in photovoltaic module in terminal box, corresponding diode
Also not identical.Main function is that the electric power for generating solar battery is connect with outside line.Terminal box passes through silica gel and photovoltaic
The backboard of component sticks together, and the lead-out wire in photovoltaic module is linked together by the internal wiring in terminal box, inner wire
Road links together with External cable, and photovoltaic module is connected with External cable.There is diode in terminal box, guarantees photovoltaic module
By it is light-blocking when can work normally.If certain of solar panel arranges certain piece cell piece and is blocked, the cell piece being blocked
Load will be become, other cell piece institute's generated energy of the column are utilized by the piece cell piece, to cause temperature excessively high, generate hot spot effect
It answers, damages solar panel.Bypass diode inside terminal box is exactly that the short circuit of this portion of electrical current is prevented the generation of hot spot effect.
One layer of aluminium alloy protection laminate can be set outside terminal box, play certain sealing, supporting role.In addition, also
It can be handed over using silica gel sealing Cadimium telluride thin film photovoltaic module 1 and aluminum alloy frame, Cadimium telluride thin film photovoltaic module 1 and terminal box
At boundary.
It can be a kind of structural representation of solar energy heating device assembly provided by the embodiment of the utility model refering to Fig. 3, Fig. 3
Figure, the solar energy heating device assembly 2 include frame 21, the anodic oxidation aluminium sheet cadmium plating heat-sink shell set gradually from top to bottom
22, insulating layer 23 and shell 24.
Wherein, the frame 21 can be set in the back contact 15 and the anodic oxidation aluminium sheet cadmium plating heat-sink shell 22
Surrounding constitutes one for the Cadimium telluride thin film photovoltaic module 1 and the solar energy heating device assembly 2 connection to be integrated
Heat-insulated cavity.Anodic oxidation aluminium sheet cadmium plating heat-sink shell 22 specifically includes absorber plate, comb and collector, the comb longitudinal arrangement in
The surrounding of the absorber plate constitutes fluid channel, and the upper and lower surface that the collector is laterally arranged in the absorber plate constitutes fluid and inhales
The passage of heat.Absorber plate on heat-sink shell is used to absorb the visible light through Cadimium telluride thin film photovoltaic module 1, and generates heat,
Fluid in comb and collector is used to absorb the heat on absorber plate, and heat is swapped out.
Further, absorber coatings can be coated on the absorber plate, the absorber coatings include non-selective absorption
Coating and coating for selective absorption, the non-selective absorber coatings are the optical characteristics absorber coatings unrelated with radiation wavelength,
The coating for selective absorption is optical characteristics absorber coatings relevant to radiation wavelength.
It, can on absorber plate in order to allow absorber plate to absorb solar radiant energy to the maximum extent and convert thereof into thermal energy
To be covered with dark coating, this is known as absorber coatings.The coating material of absorber plate is very heavy to solar radiation energy is absorbed
The effect wanted.Because the wavelength of solar radiation is concentrated mainly in the range of 0.3~2.5 μm, and the heat radiation of absorber plate is then led
It concentrates in 2~20 μm of wave-length coverage, to enhance absorber plate to the absorbability of solar radiation, reduce heat loss again,
Reduce the heat radiation of absorber plate, it is necessary to use selective coating.Selective coating is that have higher suction to solar shortwave radiation
Yield, and to a kind of lower coating of long wave heat radiation emissivity, the method that can mostly use magnetron sputtering greatly makes selection
Property coating, can reach absorptivity 0.93~0.95, emissivity 0.12~0.04 substantially increases product hot property.
Absorber coatings can be divided into: non-selective absorber coatings and coating for selective absorption.Wherein, non-selective absorber coatings
Refer to its optical characteristics absorber coatings unrelated with radiation wavelength；Coating for selective absorption then refers to its optical characteristics with radiated wave
The absorber coatings that long difference has significant change.
In general, to reach merely, high solar absorptance is not very difficult, and difficult is to keep the high sun
Reach low emissivity while absorptance again.For coating for selective absorption, with the raising of solar absorptance, often
Emissivity also increases；For usually used blackboard paint, solar absorptance may be up to 0.95, but emissivity also exists
0.90 or so, so belonging to non-selective absorber coatings.
Coating for selective absorption can be prepared with a variety of methods, such as spraying method, chemical method, electrochemical method, true
Empty method of evaporating, magnetically controlled sputter method etc..The coating for selective absorption prepared using these methods, the most of sun are absorbed
Than being all up to 0.90 or more, but their accessible emissivity ranges but have apparent difference.From the performance angle of emissivity
Degree sets out, and above-mentioned putting in order for various method superiority and inferiority should be: magnetically controlled sputter method, vacuum evaporation method, electrochemical method, change
Method, spraying method.Certainly, the emissivity value of every kind of method has certain range, the actual transmission rate value of certain coating
Depending on preparing the degree of coating process optimization.
It can classify by the coating of absorber plate are as follows: electroplated coating, chemical surface conversion coating, vacuum plating coating.
1. electroplated coating:
(1) black chrome coating
The absorptance α and transmitting ratio ε of black chrome coating are respectively 0.93~0.97 and 0.07~0.15, and α/ε is 6~13, tool
There is excellent spectral selection.The thermal stability and high temperature resistant property of black chrome coating are also fine, are suitable for hot conditions, 300
It DEG C can long-term stable operation.In addition, black chrome coating also has preferable weatherability and corrosion resistance.But the plating used now
Black chromium process, current density is big (15~200A/dm2), and solution conductivity is poor, and when plating can generate a large amount of Joule heat, needs
Cooling and vented exhaust could maintain normally to produce.In addition, black chromium is plated in non-copper piece, first copper pre-plating, then bright nickel plating are needed,
Last black chromium plating, production cost are higher.
(2) black nickel coating
For the absorptance α of black nickel coating up to 0.93~0.96, heat emission ratio ε is 0.08~0.15, α/ε close to 6~12,
Absorbent properties are preferable.Black nickel coating is very thin, in order to improve the binding force and corrosion resistance of coating and matrix, frequently with inter coat
(such as Ni, Cu, Cd) or the double-deck nickel coating.Since the thermal stability of black nickel coating, corrosion resistance are poor, it is usually applicable only to low temperature too
Positive energy heat utilization.
(3) black cobalt coating
The main component of black cobalt coating is CoS, has honeycomb type reticular structure, and absorptance α is sent out up to 0.94~0.96
Penetrate be 0.12~0.14, α/ε than ε is 6.7~8.
2. electrochemical surface conversion coating
(1) alumilite process coating
The anodic oxidation of aluminium and aluminium alloy can carry out in sulfuric acid medium, but in solar thermal utilization, mainly use phosphoric acid
Medium.There are many technique, the coating that wherein electrolytic colouring technology obtains has secured, stable, sun-proof excellent alumina coat colorization
Good characteristic, and can be mass produced.
Alumilite process coating is a kind of perforated membrane, and porosity is up to 22%, and metal is easily deposited in micropore when electrolytic coloring.
Metallic salt for electrolytic coloring has: nickel salt, pink salt, cobalt salt and mantoquita etc..
Alumilite process coating, the performances such as anti-corrosion, wear-resisting and light shine are also fairly good, in flat plate solar water heater
It is used widely.
(2) CuO conversion coating
The CuO conversion coating produced with anodizing, the concentration of NaOH electrolyte are 1mol/L, current density 2mA/
Cm2, temperature are 50~57 DEG C.For the absorptance of coating up to 0.88~0.95, normal direction transmitting ratio is 0.15~0.30.This CuO
Coating has one layer of black flannelette, and protection is bad, will lead to the reduction of absorptance.
3. vacuum plating coating
The excellent coating of selective absorbability, but the equipment of the latter can be prepared with magnetron sputtering technique using being evaporated in vacuo
Fairly simple, technology controlling and process is convenient, is easy to obtain uniform coating over a large area.
Further, it is also covered with transparent cover plate on the absorber plate, for leading to after preventing the heat absorption plate temperature from increasing
Cross convection current and radiant flux loss of heat amount.Transparent cover plate mainly has following effect: first is that making it be incident upon absorber plate through solar radiation
On；Second is that protection absorber plate, makes its not erosion by dust and sleet；Third is that forming greenhouse effects, prevent absorber plate in temperature
It is radiated after raising by convection current and radiation direction ambient enviroment.
Specifically, the transparent cover plate may include low iron plate glass cover board or glass epoxy cover board.Plate glass tool
There is the features such as infra-red transmittance is low, thermal coefficient is small, weather resistance is good, solar energy heating can be met well in these areas
The requirement of device transparent cover plate.
Transparent cover plate material can be using the low iron plate glass with a thickness of 3~5mm, such as the low iron tempered glass of ultrawhite or super
White low iron woven design tempered glass, light transmittance are high, can anti-ice hail, anti-fight, securely and reliably.Common thickness of glass be 3.2mm and
Two kinds of 4.0mm.
Flat-plate solar collector uses the unique advantage of the low iron tempered glass of ultrawhite:
A, the self-destruction rate of glass is low: using high purity raw material, opposite simple glass is free of various ignition impurity, thus greatly
The self-destruction rate after tempering is reduced greatly.
B, colour consistency: using advanced colorimetric analysis instrument and analysis software, it is ensured that the consistency of glass colour.
C, visible light transmittance rate is high, and permeability is good: greater than 93% visible light transmittance rate, so that heat collector is obtained more sun
Energy.
D, UV transparent rate is low: reducing the aging on other materials influences.
In addition, glass epoxy cover board (i.e. fiberglass reinforced plastics plate) has solar transmission than high, thermal coefficient is small, punching
The features such as hit intensity is high can also undoubtedly meet the requirement of solar thermal collector transparent cover plate well in these areas.However,
For glass epoxy, infra-red transmittance and weather resistance are two and need the problem of paying attention to.The monochrome transmissive of glass epoxy
Than showing that monochrome transmissive still has than not only there is very high numerical value within 2pm, but also in 2.5pm or more with wavelength plot
Higher numerical value.Therefore, the solar transmission ratio of glass epoxy is general all 0.88 or more, but its infra-red transmittance also compares plate
Glass is much higher.
Glass epoxy is by using high bond energy resin and gel coat, it is possible to reduce by the degree of ultraviolet damage.In addition, glass
Steel plate has the characteristics that some plate glass are unexistent.Such as: the light weight of glass epoxy, convenient for the transport of solar thermal collector
And installation；The processing performance of glass epoxy is good, convenient for needing to carry out machine-shaping according to solar thermal collector product.
Further, the insulating layer may include rock wool, mineral wool, polyurethane, polystyrene or phenol formaldehyde foam.
Wherein, material of the phenol formaldehyde foam (Phenolic Foam, abbreviation PF) as a kind of preferable insulating layer, is with phenol
The many kinds of substance such as urea formaldehyde and emulsifier, foaming agent, curing agent and other auxiliary agents, through closed pore made of scientific formula foamed solidification
Type rigid foam.
Phenolic foam material has characteristics that
A, outstanding thermal and insulating performance, thermal coefficient < 0.03W/mK.
B, higher operating temperature.Phenol formaldehyde foam can be in -200 DEG C~160 DEG C (allowing instantaneous 250 DEG C) long-term works, nothing
It shrinks.
C, outstanding weatherability.It is chronically exposed under high temperature, still there is preferable thermal and insulating performance, will not discharge and appoint
What may obstruct the volatile materials of solar radiation.
D, noninflammability.Phenol formaldehyde foam (100mm is thick) fire-resistance flame ability was not pierced up to 1 hour or more, and smokeless, and nothing has
Evil gas distributes.When phenol formaldehyde foam is shown in open fire, surface formed structural carbon, without dripping off object, without curling, without melt phenomenon.After excessive fire,
Surface forms the graphite linings of structural carbon, is effectively protected the interior structure of foam.
E, environmental protection.Using floride-free foaming technique, no fiber meets country, international environmental requirement.
Phenol formaldehyde foam is compared with polyurethane: similar thermal insulation property, but has higher operating temperature, and non-ignitable.
Phenol formaldehyde foam is compared with rock wool: better thermal insulation property, more completely, harmless.
The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to
The specific embodiment stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (10)
1. a kind of photovoltaic and photothermal integral device characterized by comprising Cadimium telluride thin film photovoltaic module and solar thermal collector
Component, the Cadimium telluride thin film photovoltaic component encapsulating is in the top of the solar energy heating device assembly, the Cadimium telluride thin film light
The front of component is lied prostrate for directly absorbing sunray；
The light transmittance of the Cadimium telluride thin film photovoltaic module is 30%~100%.
2. photovoltaic and photothermal integral device according to claim 1, which is characterized in that the Cadimium telluride thin film photovoltaic module
The back side and the solar energy heating device assembly constitute heat-insulated cavity.
3. photovoltaic and photothermal integral device according to claim 1, which is characterized in that the Cadimium telluride thin film photovoltaic module
Glassy layer, including transparent conducting oxide layer, cadmium sulfide Window layer, cadmium telluride absorbed layer, back including setting gradually from top to bottom connect
Contact layer and back electrode.
4. photovoltaic and photothermal integral device according to claim 3, which is characterized in that the back side of the back electrode is also set up
There is a backboard, the backboard is arranged with terminal box, the terminal box lead-out wire with the Cadimium telluride thin film photovoltaic module respectively
And outside line connection, the electric energy for generating the Cadimium telluride thin film photovoltaic module lead to the outside line.
5. photovoltaic and photothermal integral device according to claim 3, which is characterized in that the solar energy heating device assembly packet
Include the frame set gradually from top to bottom, anodic oxidation aluminium sheet cadmium plating heat-sink shell, insulating layer and shell.
6. photovoltaic and photothermal integral device according to claim 5, which is characterized in that the frame is set to the back and connects
Contact layer and the anodic oxidation aluminium sheet cadmium plating heat-sink shell surrounding are used for the Cadimium telluride thin film photovoltaic module and the solar energy
The connection of thermal-arrest device assembly is integrated.
7. photovoltaic and photothermal integral device according to claim 5, which is characterized in that heat-sink shell includes absorber plate, comb
And collector, the comb longitudinal arrangement constitute fluid channel in the surrounding of the absorber plate, the collector is laterally arranged in described
The upper and lower surface of absorber plate constitutes fluid heat recipient passage.
8. photovoltaic and photothermal integral device according to claim 7, which is characterized in that be coated with and absorb on the absorber plate
Coating, the absorber coatings include non-selective absorber coatings and coating for selective absorption, and the non-selective absorber coatings are
The optical characteristics absorber coatings unrelated with radiation wavelength, the coating for selective absorption are that optical characteristics is relevant to radiation wavelength
Absorber coatings.
9. photovoltaic and photothermal integral device according to claim 7, which is characterized in that be also covered on the absorber plate
Bright cover board, for passing through convection current and radiant flux loss of heat amount after preventing the heat absorption plate temperature from increasing.
10. photovoltaic and photothermal integral device according to claim 9, which is characterized in that the transparent cover plate includes low iron
Plate glass cover board or glass epoxy cover board.
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| CN201820854964.6U CN208296347U (en) | 2018-06-04 | 2018-06-04 | A kind of photovoltaic and photothermal integral device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507204A (en) * | 2018-06-04 | 2018-09-07 | 深圳市华阳绿色建筑节能有限公司 | A kind of photovoltaic and photothermal integral device |
| CN110649115A (en) * | 2019-09-30 | 2020-01-03 | 河南城建学院 | Cadmium telluride photovoltaic module and electric heat combined supply system |
| CN111540793A (en) * | 2020-05-11 | 2020-08-14 | 成都中建材光电材料有限公司 | Cadmium telluride solar cell module with insulating layer and preparation method thereof |
-
2018
- 2018-06-04 CN CN201820854964.6U patent/CN208296347U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507204A (en) * | 2018-06-04 | 2018-09-07 | 深圳市华阳绿色建筑节能有限公司 | A kind of photovoltaic and photothermal integral device |
| CN110649115A (en) * | 2019-09-30 | 2020-01-03 | 河南城建学院 | Cadmium telluride photovoltaic module and electric heat combined supply system |
| CN110649115B (en) * | 2019-09-30 | 2021-09-07 | 河南城建学院 | Electric heat cogeneration system of cadmium telluride photovoltaic module |
| CN111540793A (en) * | 2020-05-11 | 2020-08-14 | 成都中建材光电材料有限公司 | Cadmium telluride solar cell module with insulating layer and preparation method thereof |
| CN111540793B (en) * | 2020-05-11 | 2023-05-23 | 成都中建材光电材料有限公司 | Cadmium telluride solar cell module with heat preservation layer and preparation method thereof |
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