CN209279255U - A kind of middle temperature solar heat collector - Google Patents
A kind of middle temperature solar heat collector Download PDFInfo
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- CN209279255U CN209279255U CN201821913993.1U CN201821913993U CN209279255U CN 209279255 U CN209279255 U CN 209279255U CN 201821913993 U CN201821913993 U CN 201821913993U CN 209279255 U CN209279255 U CN 209279255U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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Abstract
The utility model provides a kind of middle temperature solar heat collector, is related to solar thermal collector.The middle temperature solar heat collector includes: light transmission case and thermal-collecting tube;The thermal-collecting tube is coiled pipe and is sequentially communicated and is formed by multiple straight pipes being parallel to each other and U pipeline section, multiple straight pipes are arranged in tabular, a reflecting mirror is fixed with below each straight pipe, the reflecting mirror away from the first circular arc concave surface of straight pipe recess with the second circular arc concave surface by forming, first circular arc concave surface and second circular arc concave surface extend along the length direction of the straight pipe, on the cross section perpendicular to first circular arc concave surface and the reflecting mirror of the extending direction of second circular arc concave surface, first circular arc concave surface and second circular arc concave surface are symmetrical arranged about the straight pipe.
Description
Technical field
The utility model relates to solar thermal collectors, more particularly to a kind of middle temperature solar heat collector.
Background technique
Although the lasting progress of resource exploitation, leads to the lasting reduction of the non-renewable energy resources such as coal, consequent is
North of china in winter causes air pollution constantly to increase by burning coal heating.
Meanwhile with heliotechnics constantly improve and sustained improvement so that solar energy can be used as warming
Main source.But the Heat-collecting effect of solar thermal collector is unsatisfactory, leads to solar energy heating heating system matched with its
Using effect it is poor.
Utility model content
One purpose of the utility model is to provide for a kind of middle temperature solar heat collector, to solve above-mentioned solar energy heating
The problem of Heat-collecting effect of device is unsatisfactory, and the using effect difference of solar energy heating heating system matched with its is caused to cause.
Particularly, the utility model provides a kind of middle temperature solar heat collector, comprising: light transmission case and thermal-collecting tube;
The thermal-collecting tube for coiled pipe and is sequentially communicated and is formed by multiple straight pipes being parallel to each other and U pipeline section, Duo Gesuo
It states straight pipe to arrange in tabular, a reflecting mirror is fixed with below each straight pipe, the reflecting mirror is by deviating from institute
The the first circular arc concave surface and the second circular arc concave surface for stating straight pipe recess form, and first circular arc concave surface and second circular arc are recessed
Face extends along the length direction of the straight pipe, in prolonging perpendicular to first circular arc concave surface and second circular arc concave surface
It stretches on the cross section of the reflecting mirror in direction, first circular arc concave surface and second circular arc concave surface are about the straight pipe
It is symmetrical arranged;The intersection rib that the intersecting lens that first circular arc concave surface is intersected with second circular arc concave surface is formed is along described straight
The length direction of pipeline section extends, and the outer wall of the intersection rib and the straight pipe fits, and multiple first circular arcs are recessed
Face is successively alternately arranged with multiple second circular arc concave surfaces, and the thermal-collecting tube and multiple reflecting mirrors are mounted on the light transmission
In case;The thermal-collecting tube has interconnected both ends, and the both ends of the thermal-collecting tube are respectively formed as the sun
The input terminal and output end of energy heat collector;
Cavity is formed in the light transmission case, the thermal-collecting tube is fixed in the cavity, and multiple reflecting mirrors are fixed
In the cavity below the thermal-collecting tube, mirror-reflection guarantor is formed with below the reflecting mirror between the pocket surfaces
Warm pattern, the top of the cavity are from top to bottom successively fixed with glass cover-plate and euphotic cover plate, the glass cover-plate with it is described
Euphotic cover plate is arranged in spacing, so as to be formed as hollow sandwich between the glass cover-plate and the euphotic cover plate;
The side wall of the cavity is sequentially formed with inside insulating layer and outside insulating layer, the inside insulating layer from inside to outside
And the outside insulating layer, along vertically extending, the outer surface of the outside insulating layer is fixed with outer support floor, the outer branch
Stake rib plate is fixed with inside floor, the inside along vertically extending between the outside insulating layer and the inside insulating layer
The inner surface towards the cavity of floor is formed as infrared specular aluminium reflecting surface, the inside insulating layer towards the cavity
Inner surface be formed with the infrared specular aluminium reflecting surface of bilateral.
Further, the upper ribs for being parallel to multiple straight pipe settings are formed on the top of the outer support floor
Plate, the outer support floor extend upwardly to the top of the upper support rib and are formed as the top of the outer support floor,
Glass support plate is fixed at the top of the outer support floor, the glass support plate is arranged in parallel with the upper support rib,
Recess forms two seal grooves being parallel to each other downwards at the top of the glass support plate, is equipped with rubber seal in the seal groove
The bottom surface of item, the rubber weather strip and the glass cover-plate fits, to be sealed to the glass cover-plate, the euphotic cover plate
It is fixed in the upper support rib.
Further, the reflective thermal-insulating pattern is reflective thermal-insulating pattern made of polyurethane or benzene plate.
Further, the thermal-collecting tube is that metal seals evacuated collector tube or metal naked pipe.
Further, the glass cover-plate is the tempering ultra-clear glasses of 3MM-6MM thickness;
The two sides plate face of the euphotic cover plate is each formed with the PMMA nonmetal film less than 0.2MM thickness.
Further, the two sides plate face of the glass cover-plate has been coated with antireflecting silicon dioxide film.
Further, the working medium flowed in the thermal-collecting tube of the middle temperature solar heat collector is anti-icing fluid, to prevent
Only the solar heating system is damaged by frost.
Further, the two sides plate face of the euphotic cover plate is respectively formed with SnO 2 thin film, the SnO 2 thin film
With a thickness of 20NM-80NM.
The beneficial effects of the utility model utilize multiple first circles so that the solar heating system is in use
The form of arc concave surface and multiple second circular arcs concave surface, the intensity of illumination that sunlight is gathered the straight pipe of thermal-collecting tube is higher, real
It tests and shows under -15 DEG C of environment of low temperature, 14MJ/ ㎡ days irradiation provides under 60 DEG C of heating heat conditions, collecting efficiency can reach
To 45% or more, than the ordinary flat solar thermal collector or vacuum tube solar heating element collection thermal effect conventionally used for domestic hot-water
Rate is enhanced about more than once.To ensure that the Heat-collecting effect of middle temperature solar heat collector, to improve sun matched with its
The using effect of energy thermal-arrest heating system.And cost is not obviously improved, has significant economic benefit and practicability;
Also, guarantee the Heat-collecting effect to sunlight, by postponing in directly foaming or forming, dense packing effect to rectangular closed
In formula cavity, good support and heat insulation effect are formed.Inside insulating layer then passes through pressure compress mode and is inserted into inner support rib
On the outside of plate, between upper support rib and lower support rib.The outer mirror surface aluminium mirror coating of setting double-sided red on the outside of the insulating layer of inside.
In conclusion solving the Heat-collecting effect of above-mentioned solar thermal collector by temperature solar heat collector in this and paying no attention to
The problem of thinking, the using effect difference of solar energy heating heating system matched with its caused to cause.
According to the accompanying drawings to the detailed description of embodiment, it is practical new to will become more apparent to one of ordinary skill in the art this
Above-mentioned and other purposes, the advantages and features of type.
Detailed description of the invention
Fig. 1 is the schematic diagram that the thermal-collecting tube is mounted in the light transmission case;
Fig. 2 is the schematic cross sectional views at the B-B of Fig. 1;
Fig. 3 is schematic expanded view at the Q of Fig. 2.
Specific embodiment
Some specific realities of the utility model are described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter
With novel.Identical appended drawing reference denotes same or similar part or part in attached drawing.Those skilled in the art should manage
Solution, the drawings are not necessarily drawn to scale.Fig. 1 is the schematic diagram that the thermal-collecting tube is mounted in the light transmission case;Fig. 2 is
Schematic cross sectional views at the B-B of Fig. 1;Fig. 3 is schematic expanded view at the Q of Fig. 2.
Referring to Fig. 1 to Fig. 3, present embodiments providing a kind of solar thermal collector 700 includes light transmission case 710 and thermal-collecting tube
720.Thermal-collecting tube 720 is coiled pipe and is sequentially communicated and is formed by multiple straight pipes 721 being parallel to each other and U pipeline section 722, multiple
Straight pipe 721 arranges that the lower section of each straight pipe 721 is fixed with a reflecting mirror 730, and reflecting mirror 730 is by deviating from tabular
The the first circular arc concave surface 731 and the second circular arc concave surface 732 of straight pipe recess form, and the first circular arc concave surface 731 and the second circular arc are recessed
Face 732 extends along the length direction of straight pipe, in the extension perpendicular to the first circular arc concave surface 731 and the second circular arc concave surface 732
On the cross section of the reflecting mirror 730 in direction, the first circular arc concave surface 731 and the second circular arc concave surface 732 are symmetrical about straight pipe 721
Setting.The intersection rib that intersecting lens that first circular arc concave surface 731 is intersected with the second circular arc concave surface 732 is formed along straight pipe length
Direction extends, and the outer wall of intersection rib and straight pipe fits, multiple first circular arc concave surfaces 731 and multiple second circular arcs concave surface
732 are successively alternately arranged, and thermal-collecting tube 720 is mounted in light transmission case 710.Thermal-collecting tube has interconnected both ends, and thermal-arrest
The both ends of pipe are respectively formed as the input terminal and output end of solar thermal collector.
In the present embodiment so that the solar heating system is in use, using multiple first circular arcs concave surface 731 with
The form of multiple second circular arcs concave surface 732, the intensity of illumination that sunlight is gathered the straight pipe of thermal-collecting tube 720 is higher, experiment
Show under -15 DEG C of environment of low temperature, 14MJ/ ㎡ days irradiation provides under 60 DEG C of heating heat conditions, collecting efficiency can achieve
45% or more, than the ordinary flat solar thermal collector or vacuum tube solar heating element collecting efficiency conventionally used for domestic hot-water
It is enhanced about more than once.To guarantee the heating effect of directly-heated type heating equipment, and cost is not obviously improved, is had significant
Economic benefit and practicability.
Further, cavity 721 is formed in light transmission case 710, thermal-collecting tube 720 is fixed in cavity 721, multiple reflecting mirrors
730 are fixed in the cavity 721 of 720 lower section of thermal-collecting tube, and it is anti-to be formed with mirror surface between 730 lower section of reflecting mirror and 721 surface of cavity
Heated jig 722 is penetrated, the top of cavity 721 is from top to bottom successively fixed with glass cover-plate 723 and euphotic cover plate 725, glass cover
Plate 723 and euphotic cover plate 725 are arranged in spacing, so as to be formed as hollow sandwich between glass cover-plate 723 and euphotic cover plate 725
724。
It should be noted that mirror-reflection heated jig 722 is the thermal insulation materials such as polyurethane or polyphenyl, silicate, rock wool
Manufactured pattern.
The side wall of cavity 721 is sequentially formed with inside insulating layer 741 and outside insulating layer 742, inside heat preservation from inside to outside
Layer 741 and outside insulating layer 742 are along vertically extending, and the outer surface of outside insulating layer 742 is fixed with outer support floor 743, outside
Support rib 743 is fixed with inside floor 744 along vertically extending between outside insulating layer 742 and inside insulating layer 741, interior
The inner surface towards cavity 721 of side rib plate 744 is formed as infrared specular aluminium reflecting surface 745, inside insulating layer 741 towards recessed
The inner surface of chamber 721 is formed with the infrared specular aluminium reflecting surface 746 of bilateral.
So set, guaranteeing the Heat-collecting effect to sunlight, by postponing in directly foaming or forming, dense packing effect to rectangle
In closed cavity, good support and heat insulation effect are formed.Inside insulating layer 741 is then inserted by pressure compress mode interior
On the outside of support rib, between upper support rib 747 and lower support rib 750.Double-sided red epi mirror is set on the outside of inside insulating layer 741
Face aluminium mirror coating.
Wherein inside 744 outer surface of floor by polishing, plated film or pastes the means such as attachment, and it is anti-to form infrared specular aluminium
Penetrate face 745.According to existing flat type solar heat collector use condition, 743 height of aluminium alloy extrusions outer support floor is 80MM-
Between 200MM, floor 744 height in inside is lower than external support board height 5-20MM.Between outer support floor 743 and inside floor 744
Away from for 5-30MM.Upper and lower 750 width of support rib is 10-80MM.Spacing between upper support rib 747 and glass support plate 748
For 2-10MM.749 quantity of seal groove is 1-3.749 diameter of seal groove is 2-8MM.Aluminium alloy extrusions plate thickness is 1.0-
5.0MM.Used aluminium alloy extrusions is the current conventional aluminum alloys profile trade mark, be can also be used with current conventional aluminum alloys profile board
The novel aluminium alloy material developed based on number.
The middle high heat-insulating integral formula frame of temperature solar heat collector, using rectangle aluminum profile splicing structure, transverse and longitudinal aluminum profile
Welding or mechanical connection corner fittings connection type can be used in bracket connection.
The length of frame is 4-6m, and width is to increase a connection reinforcement cross at interval of 1-2m on 1-2m. length direction
Beam.
Further, the top of outer support floor 743, which is formed, is parallel to the upper support rib that multiple straight pipes 721 are arranged
747, outer support floor 743 upwardly extends the top of supreme support rib 747 and is formed as the top of outer support floor 743, outside
The top of support rib 743 is fixed with glass support plate 748, and glass support plate 748 is arranged in parallel with upper support rib 747, glass
Recess forms two seal grooves 749 being parallel to each other downwards at glass support plate 748 top, is equipped with rubber seal in seal groove 749
The bottom surface of item, rubber weather strip and glass cover-plate 723 fits, and to seal to glass cover-plate 723, euphotic cover plate 725 is fixed on
In upper support rib 747.
The integral type involute specular reflector that first circular arc concave surface 731 and the second circular arc concave surface 732 are formed as π: 1 is main
By integrally formed insulation board pattern and involute reflecting surface.Reflecting surface and reflective thermal-insulating pattern constituted mode there are several types of:
1) reflecting plate or reflectance coating are attached on pattern involute curve, and the method by being bonded is adhered to pattern and gradually opens
On line curved surface.
2) reflectance coating, is directly coated on involute surface by the method that can use plated film.
Involute reflecting surface uses centrosymmetric double involute mode.The open height of involute is not more than intermediate thermal-arrest
The height of pipe 720, opening width are 3-3.2 times of 720 absorber diameter of thermal-collecting tube.It is wide for best optically focused opening with 3.14 times
Degree.
Reflective thermal-insulating pattern can be molded with using thermal insulation materials such as heat insulating polyurethane, benzene plates.
The reflective thermal-insulating pattern back side is coated with or adheres to infrared reflection coating or film, with the infrared spoke inside reflector collector
It penetrates, while lowering the infra-red radiation to backboard direction, to reduce the heat loss of heat collector.
By taking thermal-collecting tube 720 absorbs heat pipe diameter for 50MM as an example, the opening width of double involute is 157MM.
Following several forms can be used in temperature solar energy heat collection pipe 720 in through type:
1) glass metal seal straight-through vacuum thermal-collecting tube 720 is managed.
2) glass metal is set with antivacuum straight through heat collection tube 720.
3) metal naked pipe.
Above-mentioned 720 metal tube surface of thermal-collecting tube is coated with solar selectively absorbing coating.When using cover glass tube, cover glass
Glass pipe diameter is greater than metal heat absorption tube diameter 5-20MM.
Following several forms can be used in connection type between two thermal-collecting tubes 720:
1) both ends are all made of rectangular (rectangular or square) header and connect with thermal-collecting tube 720, realize 720 both ends connection of thermal-collecting tube
It is in parallel.
2) it is sequentially connected between thermal-collecting tube 720 using U-shaped elbow, forms snakelike series connection mode.
720 both ends junction header of thermal-collecting tube or U-shaped elbow are all made of insulating layer isothermal holding, to reduce heat loss.
Support through type in temperature solar energy heat collection pipe 720 bracket be then on collector frame length direction, at interval of
1-2m increases a connection reinforcement crossbeam.Crossbeam passes through 720 position of thermal-collecting tube and circular open is arranged, and is used to support fixed thermal-collecting tube
720。
The high heat-preserving cover plate primary structure thoroughly of the double-deck low-loss is as follows:
1) the high saturating ultra-clear glasses of tempering that the glass cover-plate 723 on upper layer is 3-6MM.The euphotic cover plate 725 of lower layer is 3-
The common high transparent glass of 6MM.Centre is the hollow sandwich 724 of 3-20MM spacing.
2) the high saturating ultra-clear glasses of tempering that upper layer is 3-6MM.Lower layer is the common saturating nonmetal film of height less than 0.2MM,
It can be PE, PTFE, PMMA material.Centre is the hollow sandwich 724 of 3-20MM spacing.
Selected upper layer glass surface single or double can be coated with antireflecting silicon dioxide film.Or outer surface is titanium dioxide
Titanium/silica is anti-reflection hydrophobic film, inner surface is anti-reflection film.
Lower layer's glass or film upper surface are coated with LOW-E film.
It is arranged by above structure, the transmittance of sunlight can be improved by a relatively large margin, reduces surface contaminant to transmission
Influence.Can be effectively reduced that the radiation of thermal-collecting tube 720 generates simultaneously to empty radiation heat loss, also reduce hot-air in heat collector and pass
Thermally conductive damage.To make cover-plate glass that the hot property of heat collector be greatly improved in terms of transmission/reflection/angle/heat waste three.
Heat collector infrared external reflection backboard refers to for the heat collector back side, supports thermal-collecting tube 720, reflector etc. inside heat collector
The metal backing of component.It is coated with infrared reflection coating or infrared reflection film on the inside of metal backing, it can be red inside heat collector
External radiation reflects back, to further decrease heat waste.
For the high heat-insulating integral formula frame of temperature solar heat collector as main structure, the double-deck low-heat is arranged in surface in rectangle
The high saturating heat-preserving cover plate of damage, wherein outermost glass cover board 723 is pressed on the sealing ring in the seal groove 749 on aluminum profile top, shape
At hollow sealing.Cover-plate glass is fixed on above aluminum section bar frame by outer side pressing block.Outer side pressing block can be bonded in aluminum profile
On, or be fixed on aluminum profile outer support floor 743 by rivet.This fixed form solves conventional single layer floor and beats
When hole rivet is fixed, the problem of causing inside and outside connection.
1-5 block is arranged according to the width of heat collector in glass cover-plate 723.And it is pressed respectively against aluminum alloy frame and is used to support straight
In general formula on the bracket of temperature solar energy heat collection pipe 720.By muti-piece assembly, under the conditions of proof strength, also facilitating installation makes
With.
723 following settings straight way type solar collector tube 720 of glass cover-plate, thermal-collecting tube 720 are following by glass cover-plate 723
The bracket for being used to support temperature solar energy heat collection pipe 720 in through type be supported with it is fixed.
Further, below thermal-collecting tube 720 be π: 1 integral type involute specular reflector, reflector symmetry axis and collection
720 axis of heat pipe is parallel.Reflector center is pressed in 720 outer surface of thermal-collecting tube.The every three groups of reflectings surface of reflector are one group.And pass through
It is adhesively fixed on heat collector infrared external reflection backboard, and passes through temperature solar energy heat collection pipe in the aluminum alloy frame of surrounding and through type
720 brackets fix.
Further, heat collector infrared external reflection backboard is between heat collector bottom, with surrounding aluminum alloy frame using close
Strip of paper used for sealing or sealant sealing, are fixed using briquetting.Briquetting punches fixed bit setting in aluminum profile outer support floor 743
On.This fixed form solve conventional single layer floor punching rivet it is fixed when, the problem of causing inside and outside connection.Thermal-collecting tube 720
Import is located at the lower flank side surface of heat collector, and outlet is located at flank side surface on heat collector.Inlet and outlet can be ipsilateral or heteropleural.
Further, it when the inlet and outlet of thermal-collecting tube 720 are pierced by aluminium alloy extrusions position, is set between export and thermal-collecting tube 720
Set heatproof sealing ring, with realize heat collector it is inside and outside between sealing.Sealing uses Type B sealing structure.
Further, reflective thermal-insulating pattern is reflective thermal-insulating pattern made of polyurethane or benzene plate, and thermal-collecting tube is molten for metal
Evacuated collector tube or metal naked pipe are sealed, glass cover-plate is the tempering ultra-clear glasses of 3MM-6MM thickness;The two sides plate face of euphotic cover plate is equal
It is formed with the PMMA nonmetal film less than 0.2MM thickness, PMMA is polymethyl methacrylate.
Further, the two sides plate face of glass cover-plate has been coated with antireflecting silicon dioxide film.
Further, the working medium flowed in the thermal-collecting tube of middle temperature solar heat collector is anti-icing fluid, to prevent solar energy
Heating system is damaged by frost.
Further, the two sides plate face of euphotic cover plate is respectively formed with SnO 2 thin film, SnO 2 thin film with a thickness of
20NM-80NM。
So far, although those skilled in the art will appreciate that the more of the utility model have been shown and described in detail herein
A exemplary utility model still, still can be according to the utility model in the case where not departing from the spirit and scope of the utility model
Disclosure directly determines or derives many other variations or modifications for meeting the utility model principle.Therefore, this is practical
Novel range is understood that and regards as to cover all such other variations or modifications.
Claims (8)
1. a kind of middle temperature solar heat collector characterized by comprising light transmission case and thermal-collecting tube;
The thermal-collecting tube is coiled pipe and is sequentially communicated and is formed by multiple straight pipes being parallel to each other and U pipeline section, multiple described straight
Pipeline section is arranged in tabular, a reflecting mirror is fixed with below each straight pipe, the reflecting mirror is by away from described straight
The the first circular arc concave surface and the second circular arc concave surface of pipeline section recess form, first circular arc concave surface and second circular arc concave surface edge
The straight pipe length direction extend, in the extension side perpendicular to first circular arc concave surface and second circular arc concave surface
To the reflecting mirror cross section on, first circular arc concave surface is symmetrical about the straight pipe with second circular arc concave surface
Setting;The intersection rib that the intersecting lens that first circular arc concave surface is intersected with second circular arc concave surface is formed is along the straight pipe
Length direction extend, and the outer wall of the intersection rib and the straight pipe fits, multiple first circular arc concave surfaces and
Multiple second circular arc concave surfaces are successively alternately arranged, and the thermal-collecting tube and multiple reflecting mirrors are mounted on the light transmission case
It is interior;The thermal-collecting tube has interconnected both ends, and the both ends of the thermal-collecting tube are respectively formed as the solar energy
The input terminal and output end of heat collector;
Cavity is formed in the light transmission case, the thermal-collecting tube is fixed in the cavity, and multiple reflecting mirrors are fixed on institute
It states in the cavity below thermal-collecting tube, is formed with mirror-reflection heat preservation below the reflecting mirror between the pocket surfaces and leans on
Mould, the top of the cavity are from top to bottom successively fixed with glass cover-plate and euphotic cover plate, the glass cover-plate and the light transmission
Cover board is arranged in spacing, so as to be formed as hollow sandwich between the glass cover-plate and the euphotic cover plate;
The side wall of the cavity is sequentially formed with inside insulating layer and outside insulating layer, the inside insulating layer and institute from inside to outside
Outside insulating layer is stated along vertically extending, the outer surface of the outside insulating layer is fixed with outer support floor, the outer support rib
Plate is fixed with inside floor, the inside floor along vertically extending between the outside insulating layer and the inside insulating layer
The inner surface towards the cavity be formed as infrared specular aluminium reflecting surface, the inside insulating layer towards in the cavity
Surface is formed with the infrared specular aluminium reflecting surface of bilateral.
2. middle temperature solar heat collector according to claim 1, which is characterized in that the top of the outer support floor is formed
It is parallel to the upper support rib of multiple straight pipe settings, the outer support floor extends upwardly to the upper support rib
Top and be formed as the top of the outer support floor, be fixed with glass support plate at the top of the outer support floor, it is described
Glass support plate is arranged in parallel with the upper support rib, and recess forms two to be parallel to each other downwards at the top of the glass support plate
A seal groove is equipped with rubber weather strip in the seal groove, and the bottom surface of the rubber weather strip and the glass cover-plate is affixed
It closes, to seal to the glass cover-plate, the euphotic cover plate is fixed in the upper support rib.
3. middle temperature solar heat collector according to claim 2, which is characterized in that the reflective thermal-insulating pattern is polyurethane
Or reflective thermal-insulating pattern made of benzene plate.
4. middle temperature solar heat collector according to claim 3, which is characterized in that the thermal-collecting tube is that metal seals vacuum
Thermal-collecting tube or metal naked pipe.
5. middle temperature solar heat collector according to claim 4, which is characterized in that
The glass cover-plate is the tempering ultra-clear glasses of 3MM-6MM thickness;
The two sides plate face of the euphotic cover plate is each formed with the PMMA nonmetal film less than 0.2MM thickness.
6. middle temperature solar heat collector according to claim 5, which is characterized in that the two sides plate face of the glass cover-plate is plated
It is formed with antireflecting silicon dioxide film.
7. middle temperature solar heat collector according to claim 6, which is characterized in that the middle temperature solar heat collector
The working medium flowed in the thermal-collecting tube is anti-icing fluid, to prevent the solar heating system to be damaged by frost.
8. middle temperature solar heat collector according to claim 7, which is characterized in that the two sides plate face of the euphotic cover plate point
Be not formed with SnO 2 thin film, the SnO 2 thin film with a thickness of 20NM-80NM.
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