CN103759432B - A kind of Superthin superconducting-typeheat heat absorbing plate core and flat-plate solar collector - Google Patents
A kind of Superthin superconducting-typeheat heat absorbing plate core and flat-plate solar collector Download PDFInfo
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- CN103759432B CN103759432B CN201410004381.0A CN201410004381A CN103759432B CN 103759432 B CN103759432 B CN 103759432B CN 201410004381 A CN201410004381 A CN 201410004381A CN 103759432 B CN103759432 B CN 103759432B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/50—Solar heat collectors using working fluids the working fluids being conveyed between plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S2080/03—Arrangements for heat transfer optimization
- F24S2080/05—Flow guiding means; Inserts inside conduits
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
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Abstract
The invention discloses a kind of new type superthin superconductive type heat-absorbing plate core and flat-plate solar heat collector, its innovative point is: include a kind of heat-absorbing plate core based on corrugated sheet metal structure, a kind of superconduction contact heat transfer working medium, transparent cover plate, adiabator layer and housing.The flat-plate solar heat collector of the present invention has the feature such as compact conformation, heat transfer efficiency is high, crushing is little, weight is light and handy, flexible for installation, pressure-bearing property is high, freeze proof, good antiscale property, corrosion-resistant, length in service life and low cost, is especially suitable for combining with building.By using mixing superconduction heating agent as heat-transfer working medium, this solar thermal collector is the most properly functioning, it is greatly improved its efficiency of utilization and range, widen the application approach of flat-plate solar heat collector, be widely used in the solar energy heating occasion such as civil buildings and industrial premises.
Description
Technical field
The invention belongs to the solar energy heating technical field of middle low temperature, particularly relate to a kind of new type superthin superconductive type heat-absorbing plate core and flat-plate solar heat collector.
Background technology
Flat-plate solar heat collector has been widely used for the numerous areas such as domestic water heating, natatorium heating system, water for industrial use heating, constructure heating and air-conditioning.Flat-plate solar heat collector is mainly made up of several parts such as transparent cover plate, heat-absorbing plate core, thermal insulation layer and casing frames, and the most plate heat-absorbing plate core is the core component of solar thermal utilization.
When flat-plate solar heat collector works, after solar radiation passes transparent cover plate, it is incident upon on heat-absorbing plate core, absorbed by heat-absorbing plate core and be converted into heat energy, then transferring heat to the heat-transfer working medium in heat-absorbing plate core, make the temperature of heat-transfer working medium raise, the effective energy as heat collector exports.
Heat-absorbing plate core is absorption solar radiant energy the parts to heat-transfer working medium transmission heat in flat-plate solar heat collector, and it is substantially writing board shape.For increasing the hot property of absorber plate, often at heat-absorbing plate core surface spary heat absorbing coating.On the absorber plate of writing board shape, the most all it is disposed with comb and collector.Comb refers to absorber plate longitudinal arrangement and constitutes the parts of fluid passage；Collector refers to absorber plate upper and lower two ends some combs of lateral connection and constitutes the parts of fluid passage.The material category of heat-absorbing plate core is a lot, has copper, aluminium alloy, Copper-Aluminum compound, rustless steel, galvanized steel, plastics, rubber etc..Heat-absorbing plate core primary structure form and respective pluses and minuses thereof are described below:
(1) tube-sheet type heat-absorbing plate core is that with certain combination, comb and flat board are connected and composed heat absorption band, is welded into absorber plate with upper lower collector pipe the most again.This is to use commonplace absorber plate structure type the most both at home and abroad.Owing to the comb of this plate core is circular, it is a line with contacting of absorber plate, and therefore contact surface is little, thermal contact resistance big, and heat transfer efficiency is low.
(2) wing pipe type heat-absorbing plate core is to utilize mould extrusion stretching technique to make metal tube both sides to be connected with the heat absorption band of fin, is welded into absorber plate with upper lower collector pipe the most again.Absorber plate material typically uses aluminium alloy.The advantage of wing pipe type heat-absorbing plate core: the thermal efficiency is high, pipe and flat board are one, and without combining thermal resistance, voltage endurance capability is strong.Shortcoming is complex process, and material usage is big, and technological requirement tube wall and fin have bigger thickness to increase fin heat conductivity, poor dynamic, and heat-absorbing plate core has bigger thermal capacity, self temperature rise big.
(3) flat box type heat-absorbing plate core is that the most integrally welded composition absorber plate, absorber plate material can use rustless steel, aluminium alloy, galvanized steel etc. by the compression molding respectively of two pieces of metallic plates.Generally, using spot-welding technology between fluid passage, absorber plate surrounding uses roll welding technique.The advantage of flat box type absorber plate: the thermal efficiency is high, pipe and flat board are one, without combining thermal resistance；Need not weld collector, fluid passage and collector and use once molding formed.Shortcoming: welding procedure difficulty is big, easily occurs welding and penetrates or the problem of not prison welding；Voltage endurance capability is poor, and solder joint can not bear higher pressure；Poor dynamic, the cross section of fluid passage is big, and absorber plate has bigger thermal capacity, self temperature rise big.
(4) coil pipe type heat-absorbing plate core be metal tube is bent to snakelike, the most again with plate welding constitute heat-absorbing plate core.Absorber plate material typically uses copper, and welding procedure can use high-frequency welding or ultra-sonic welded.The advantage of coil pipe type absorber plate: need not additionally weld collector, reduces the probability of leakage；Corrosion-resistant, voltage endurance capability is strong.Shortcoming: thermal contact resistance is big, and fin heat transfer efficiency is low；Plate core is even along Working fluid flow direction temperature distributing disproportionation；Series connection runner flow resistance is big, flowing crushing is big；Curved welding seam technology difficulty is big.
Plate type solar heat-collecting plate core generally uses water or acetone etc. as heat-transfer working medium, its easily freeze and at low temperatures operational efficiency difference etc. problem long-term existence in solar water heater industry, this technological deficiency hampers flat-plate solar heat collector in winter of Temperate Region in China and the use of part severe cold area always, therefore researches and develops a kind of simple and compact for structure, heat transfer efficiency is high, crushing is little, cold operation performance is superior heat-absorbing plate core and flat-plate solar heat collector is imperative.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of simple and compact for structure, heat transfer efficiency is high, crushing is little, cold operation performance is superior ultra-thin superconductive type heat-absorbing plate core.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of ultra-thin superconductive type heat-absorbing plate core, its innovative point is: described heat-absorbing plate core is that the sheet metal being be arranged in parallel by two panels is consisted of hermetically sealed welding, there is a heat transferring medium turbulent flow passageway, and there is at least one working medium import connected with heat transferring medium runner and at least one sender property outlet connected with heat transferring medium runner；The sheet metal that described two panels be arranged in parallel includes smooth metallic thin plate and the corrugated sheet metal of lower end of upper end；Described smooth metallic thin sheet surface is coated with composite solar heat absorbing coating, and described corrugated sheet metal inner surface punch forming has water conservancy diversion protruding or convex tendon.
In some embodiments, described corrugated sheet metal is bubble type ripple, and described corrugated sheet metal medial surface punch forming has the equally distributed spherical guide protrusions of some rows, and the spherical guide protrusions of adjacent two rows staggers setting.
Further, the guide protrusions of described corrugated sheet metal is spheroid, cylinder, circular cone, polyhedron, cuboid.
Further, the spread geometry of described corrugated sheet metal guide protrusions is parallelogram, rectangle, circle, ellipse, triangle, trapezoidal, rhombus.
In some embodiments, described corrugated sheet metal is vertical bar shaped ripple, the medial surface punch forming of corrugated sheet metal has some vertical bar shaped water conservancy diversion convex tendons arranged in parallel, and water conservancy diversion convex tendon is arranged from the lateral tapping side of feed liquor, and the runner mouth of described adjacent two row's water conservancy diversion convex tendons staggers setting.
In some embodiments, described corrugated sheet metal is herringbone ripple, the medial surface of corrugated sheet metal has some herringbone water conservancy diversion convex tendons arranged in parallel, the lateral tapping side of water conservancy diversion convex tendon feed liquor from punch forming, and the runner mouth of described adjacent row water conservancy diversion convex tendon staggers setting.
It is a further object of the present invention to provide the flat-plate solar heat collector of a kind of ultra-thin superconductive type, its innovative point is: include transparent cover plate, heat-absorbing plate core, heat-insulation layer, superconduction contact heat transfer working medium and housing；Described transparent cover plate, heat-absorbing plate core and heat-insulation layer be arranged in parallel the most successively.
Transparent cover plate material be thickness be ultrawhite low ferrum safety glass or the ultrawhite low ferrum woven design safety glass of 3～5mm.Generally, use single-layer and transparent cover plate in south China area, in the northern area of China, preferably use Double-layered transparent cover plate.Distance between transparent cover plate and heat-absorbing plate core should be greater than 20mm with optimum air heat transfer free convection in acquisition flat board interlayer.Insulation material can use phenol formaldehyde foam, rock wool, glass cotton, polyurethane, polystyrene etc..The thickness of thermal insulation layer should according to the material category selected, the operating temperature of heat collector, territory of use weather conditions etc. because usually determining.The heat conductivity of material is the biggest, the operating temperature of heat collector is the highest, territory of use temperature is the lowest, and the thickness of thermal insulation layer just requires the biggest.In general, the thickness of bottom thermal insulation layer selects 30～50mm, and the thickness of side thermal insulation layer is the most roughly the same.The material of shell has aluminium alloy, corrosion resistant plate, carbon steel sheet, plastics, fiberglass etc..In order to improve the sealing of shell further, aluminium alloy or the once molding formed technique of carbon steel sheet of 0.4～0.8mm can be used.Flat-plate solar collector general thickness is minimum is about 55mm, than classic flat-plate solar thermal collector thinning nearly 30%.
Preferably, the smooth metallic plate of described heat-absorbing plate core is affixed to heat-insulation layer towards transparent cover plate, wavy metal plate.
Further, the flat-plate solar heat collector of described ultra-thin superconductive type also includes one for the metal outer frame installing transparent cover plate, heat-absorbing plate core and heat-insulation layer, described metal outer frame is made up of the back frame of side frame and side frame bottom, transparent cover plate is fixed in the side frame top of metal outer frame, and and heat-absorbing plate core between leave air heat insulating layer, the side frame of described metal outer frame and back frame can monolithic moldings, it would however also be possible to employ split type, by bolt or snap connection fixing.
Further, described flat-plate solar heat collector is sequentially connected in series or composition heat exchange array in parallel by connecting pipe fitting.
Further, described superconduction contact heat transfer working medium be mainly composed of 1, ammediol, water and a small amount of preservative, the each main component of described heat-transfer working medium need to be mixed in the ratio of 5:4.5:0.5, described heat-transfer working medium is applicable to middle low-temperature solar energy heat collector, temperature range of operation is-30 DEG C to 105 DEG C, and operating temperature can be adjusted according to the mixed proportion that main component is different.
Further, the composition of described heat-transfer working medium can be also methanol or ethylene glycol or acetone and water and the mixture of preservative.
Beneficial effects of the present invention:
(1) ultra-thin superconductive type heat-absorbing plate core is made up of with a piece of parallel overlap of corrugated sheet metal with irregular corrugated surface a piece of smooth metallic thin plate, the turbulent flow passageway of unequal section is formed between plate, heat exchange is directly carried out by the coating surface of the heat transfer of runner Yu heat-absorbing plate core, reduce heat exchange thermal resistance, increase overall heat exchange efficiency.Heat-absorbing plate core, from tool comb and collector function, automatic uniform distribution working medium can carry out heat exchange, reduce material usage and plate core weight, and completely eliminate the impact of thermal contact resistance.Heat-absorbing plate core is hermetically sealed to be welded, and load performance is high.Plate in-core many places parallel fluid flow resistance is little, and crushing is little.Under uniform pressure damaed cordition, its ratio of heat transfer coefficient tube-sheet type heat collection structure exceeds 3-5 times, and heat recovery rate may be up to more than 90%.
(2) corrugated cardboard sheet is generally formed by thin plate punching such as the rustless steel that thickness is 0.5～3mm, aluminium alloy, copper, can arbitrarily customize specification.Its coefficient of heat transfer height, crushing pressure-bearing little, high, corrosion-resistant, and production technology is simple, standard production degree is high, with low cost.By using the grinding tool of various multi-forms that sheet metal can be pressed into different ripple, and on two angles of corrugated cardboard sheet, have four corner apertures, as the import and export passage of working media.The corrugated form of sheet metal mainly has herringbone ripple, vertical bar ripple, anyhow ripple, trapezoidal straight ripple, indentation ripple and bubbling type etc..These corrugated design constitute the runner of complexity so that working media flows in rotated three dimensional in runner between corrugated plating, can produce turbulent flow, so the heat transfer coefficient of this heat collection structure is higher under relatively low Reynolds number.Two thin plate sheets use full welding procedure sealing technology to be welded (such as argon arc welding), do not use any nonmetal encapsulant, thus have higher heatproof, pressure performance, and operating temperature applicatory and pressure limit are widely.Additionally due to thin plate all uses metal stamping to process, standardized production degree is high, the price 40%-60% lower than tube-sheet type of large-scale production.
(3) the antifreeze ability of heat-transfer working medium is strong, though the most properly functioning at the cold district that frost (-30 DEG C) easily occurs.Heat-transfer working medium specific heat capacity is big, exchange capability of heat strong, even if in the case of-20 DEG C, specific heat capacity still has 3.02-3.62
kJ/kg-K；In the case of 100 DEG C, specific heat capacity is up to 3.41-3.81
kJ/kg-K.Heat-transfer working medium corrosion protection is strong, and board core material material selectable range is extensive.Heat-transfer working medium good antiscale property ability is strong, to board core material material almost without any chemical reaction, does not produce the suspended impurity blocking pipelines such as greasy filth.Heat-transfer working medium has low degradability feature, and anti-air drying ability is strong, increases the service life of heat collector.Heat-transfer working medium main component 1,3-PD can be refined by the agriculture plant quickly produced, and as the recyclable organism with Semen Maydis as raw material converts production technology, breaks away from the dependence to conventional fossil fuel, reduces the negative effect to environment.
(4) insulation material can reduce metal foil plate type heat exchanger to surrounding environment dissipated heat, to improve the collecting efficiency of assembly.Insulation material needs that heat conductivity is little, do not absorb water, have the features such as certain hardness, and thickness is generally 3-5 centimetre.Conventional insulation material has polystyrene, polyurethane etc..Insulation material can carry out perforate according to the import and export caliber that working media is different.
(5) flat-plate solar heat collector has the feature such as compact conformation, heat transfer efficiency is high, crushing is little, weight is light and handy, flexible for installation, pressure-bearing property is high, freeze proof, good antiscale property, corrosion-resistant, length in service life and low cost.By using mixing superconduction heating agent as heat-transfer working medium, flat-plate solar heat collector is the most properly functioning, is greatly improved the thermal efficiency and the range of heat collector.The most no matter in terms of monnolithic case, weight, thickness and structural strength etc., this flat-plate solar heat collector is all more suitable for combining with building, has widened its application approach, is widely used in the solar energy heating occasion such as civil buildings and industrial premises.
Accompanying drawing explanation
Fig. 1 is the front schematic view of the present invention ultra-thin superconductive type heat-absorbing plate core.
The schematic rear view of Fig. 2 present invention ultra-thin superconductive type heat-absorbing plate core.
Fig. 3 is the present invention ultra-thin heat-absorbing plate core three-dimensional assembling figure.
Fig. 4 is the schematic rear view of the staggered heat-absorbing plate core of raised corrugations.
Fig. 5 is the schematic rear view of the heat-absorbing plate core that raised corrugations arrangement is rectangle.
Fig. 6 is the schematic rear view of the heat-absorbing plate core of raised corrugations arrangement parallelogram.
Fig. 7 is the schematic rear view of the heat-absorbing plate core of raised corrugations arrangement ovalize.
Fig. 8 be raised corrugations be the schematic three dimensional views of the heat-absorbing plate core of spheroid.
Fig. 9 be raised corrugations be the schematic three dimensional views of the heat-absorbing plate core of the different spheroid of size.
Figure 10 be raised corrugations be the schematic three dimensional views of cylindrical heat-absorbing plate core.
Figure 11 be raised corrugations be the schematic three dimensional views of the heat-absorbing plate core of square.
Figure 12 be raised corrugations be the schematic three dimensional views of the heat-absorbing plate core of cone.
Figure 13 be raised corrugations be the schematic three dimensional views of polyhedral heat-absorbing plate core.
Figure 14 be raised corrugations be the section plan of the heat-absorbing plate core of spheroid.
Figure 15 be raised corrugations be the section plan of cylindrical heat-absorbing plate core.
Figure 16 be raised corrugations be the section plan of the heat-absorbing plate core of square.
Figure 17 be raised corrugations be the section plan of the heat-absorbing plate core of cone.
Figure 18 be raised corrugations be the section plan of polyhedral heat-absorbing plate core.
Figure 19 be convex tendon ripple be the section plan of the heat-absorbing plate core of vertical bar: vertical parallel runner.
Figure 20 be a kind of convex tendon ripple be the metal foil plate type heat exchanger plane graph of vertical bar: vertical tortuous flow path
Figure 21 be a kind of convex tendon ripple be the metal foil plate type heat exchanger plane graph of vertical bar: horizontal tortuous flow path
Figure 22 be a kind of convex tendon ripple be the metal foil plate type heat exchanger plane graph of herringbone vertical bar: herringbone runner
Figure 23 is flat-plate solar heat collector front view.
Figure 24 is flat-plate solar heat collector side view.
Figure 25 is flat-plate solar heat collector dorsal view
Figure 26 is flat-plate solar heat collector top view.
Figure 27 is that flat-plate solar heat collector three-dimensional assembles schematic diagram.
Figure 28 is that flat-plate solar heat collector parts assemble schematic diagram.
Figure 29 is flat-plate solar heat collector connecting mode schematic diagram.
Figure 30 is another connecting mode schematic diagram of flat-plate solar heat collector.
In figure, 1-ultra-thin superconductive type flat-plate solar collector, 2-glass cover-plate, 3-side frame, 4-back frame, 5-heat-transfer working medium exports, 6-insulation material, 7-corrugated sheet metal formula heat-absorbing plate core, 8-heat-transfer working medium import, 9-corrugated sheet metal, 10-smooth metallic thin plate, 11-solar energy heat absorbing coating, 12-guide protrusions or convex tendon, 13-working medium runner, the vertical parallel runner of 14-, 15-vertical sliver convex tendon, the vertical tortuous flow path of 16-, the horizontal tortuous flow path of 17-, 18-horizontal strip convex tendon, 19-herringbone runner, 20-herringbone convex tendon, a-import, b-exports, the c-gradient.
Detailed description of the invention
With specific embodiment, technical scheme is elaborated below in conjunction with the accompanying drawings.
Refering to Fig. 1-17, the one ultra-thin superconductive type heat-absorbing plate core 7 of the present invention, being be arranged in parallel by smooth metallic thin plate 10 and corrugated sheet metal 9, smooth metallic thin plate 10 outer surface is coated with composite solar heat absorbing coating 11, and corrugated sheet metal 9 inner surface punch forming goes out water conservancy diversion projection or convex tendon 12.For turbulent flow can be produced under relatively low Reynolds number, improve the heat exchange efficiency of heat exchanger core 7, in the two panels sheet metal of its planar metal plate body, a piece of for non-ripple planar sheet 10, another sheet is to go out in inner surface punch forming that water conservancy diversion is protruding or the corrugated foils 9 of convex tendon 12.
Metal foil board-like heat exchanger core 7 entirety in the present invention does not use any nonmetal encapsulant；Corrugated cardboard sheet is formed by thin plate punching such as the rustless steel that thickness is 0.5～3mm, aluminum, titanium, molybdenums, can customize physical dimension the most according to demand, and by using the grinding tool of multi-form to be pressed into different ripple.
Smooth metallic thin plate 10 and corrugated sheet metal 9 are consisted of hermetically sealed welding, have multiple heat transferring medium turbulent flow passageway 13, and have at least one working medium import 8 connected with heat transferring medium runner and at least one sender property outlet 5 connected with heat transferring medium runner.Corrugated sheet metal 9 has guide protrusions ripple 12, and its spread geometry can be that parallelogram, rectangle, circle, ellipse, triangle, trapezoidal, rhombus and other irregular alignments are arranged.The guide protrusions ripple 12 of corrugated sheet metal 9 is by inner plate surfaces punch forming, and convex shape can be spheroid, cylinder, circular cone, polyhedron, cuboid and other random geometry bodies.Plate in-core heat transferring medium turbulent flow passageway 13 also has Mutiple Choice according to protruding shape and difference arranged evenly.
This technical staff it is to be appreciated that here the lines of corrugated foils 9 be only schematically, be not circumscribed.As shown in Figure 18～20, the lines that corrugated foils is can also be vertical bar shaped ripple, particularly as follows: the medial surface of corrugated foils 9 has some vertical bar shaped water conservancy diversion convex tendons 15 arranged in parallel from feed liquor lateral tapping side punch forming, and the runner mouth of adjacent row water conservancy diversion convex tendon or be arranged in parallel or setting of staggering, vertical bar shaped water conservancy diversion convex tendon here can be parallel according to installation requirements or be vertically arranged.This corrugated foils 9 with perpendicular or parallel vertical bar shaped water conservancy diversion convex tendon forms heat transferring medium turbulent flow passageway 14 or heat transferring medium turbulent flow passageway 16 or heat transferring medium turbulent flow passageway 17 after welding with non-ripple planar sheet 10.
Additionally, as shown in figure 21, corrugated foils 9 can also be herringbone ripple, particularly as follows: the medial surface of corrugated foils 9 has some herringbone water conservancy diversion convex tendons 19 arranged in parallel from feed liquor lateral tapping side punch forming, the runner mouth of adjacent row water conservancy diversion convex tendon staggers setting, and then forms heat transferring medium turbulent flow passageway 18.
As illustrated in figs. 22-25, the invention also discloses a kind of flat-plate solar heat collector based on above-mentioned heat-absorbing plate core, it includes glass cover-plate 2, frame 3, back frame 4, insulation material 6, heat-absorbing plate core 7, working medium circulation import 8 and outlet 5.
Concrete: glass cover-plate 2, heat-absorbing plate core 7, insulation material 6, back frame 4 are set in parallel in frame 3 the most successively.For improving heat exchange efficiency, leaving one section of air heat insulating layer between transparent cover plate and heat-absorbing plate core, heat exchanger core 7 is close to adiabator layer 6 and compression is placed in back frame 4.In the present embodiment, the board-like heat exchanger core of metal foil 7 and adiabator layer 6 are rectangle, and working medium import 8 and sender property outlet 5 are circular, have two corner right angle being opened in rectangle respectively.
Metal foil plate type heat exchanger can be sequentially connected in series by connecting pipe fitting or composition heat exchange array in parallel.Figure 26 gives horizontal series and the vertical series connecting mode of flat-plate solar heat collector array, and it connects and composes heat exchanger matrix by using the pipeline connecting parts 20 of standard.
In actual motion, each main component of heat-transfer working medium can carry out being mixed to get the suitable working medium used in this climatic environment by a certain percentage.Heat-transfer working medium composition is 1,3-PD, water and a small amount of preservative, and each main component of heat-transfer working medium need to be mixed in the ratio of 5:4.5:0.5；Heat-transfer working medium is applicable to middle low-temperature solar energy heat collector, and temperature range of operation is-30 DEG C to 105 DEG C, and operating temperature can be adjusted according to the mixed proportion that main component is different；Certain excursion is there is in heat-transfer working medium Thermal properties according to the mixed proportion that main component is different；Heat-transfer working medium corrosion protection is strong, the available metal material of board core material material such as copper, aluminium alloy, Copper-Aluminum compound, rustless steel, galvanized steel etc.；Preservative in described heat-transfer working medium is neutral organic carboxyl acid, not phosphate-containing, sodium borate, nitrite or amine.
Superconduction contact heat transfer working medium can also be methanol or ethylene glycol or acetone and water and the mixture of preservative.
In mixed working fluid, the ratio of water is the highest, and complex heat transfer performance is the strongest, but operating temperature lower limit rises；Otherwise the content of water is the fewest in mixed working fluid, operating temperature lower limit reduces, but complex heat transfer impaired performance.
The operation principle summary of solar thermal collector is: after solar radiation passes transparent cover plate, it is incident upon on heat-absorbing plate core, overwhelming majority energy is absorbed by heat-absorbing plate core and is converted into heat energy (small part energy loses with the form such as heat or luminous reflectance), then the superconductive heat transfer working medium in heat-absorbing plate core is transferred heat to, the temperature making heat-transfer working medium raises, and the effective energy as heat collector exports.This is solar water heater known technology.
Claims (5)
1. the flat-plate solar heat collector of a ultra-thin superconductive type heat-absorbing plate core, it is characterized in that: described heat-absorbing plate core is that the sheet metal being be arranged in parallel by two panels is consisted of hermetically sealed welding, there is a heat transferring medium turbulent flow passageway, and there is at least one working medium import connected with heat transferring medium runner and at least one sender property outlet connected with heat transferring medium runner；The sheet metal that described two panels be arranged in parallel includes smooth metallic thin plate and the corrugated sheet metal of lower end of upper end；Described smooth metallic thin sheet surface is coated with composite solar heat absorbing coating, and described corrugated sheet metal inner surface punch forming has water conservancy diversion protruding；It is protruding that the medial surface of described corrugated sheet metal is provided with some water conservancy diversion arranged in parallel, and described water conservancy diversion is protruding to be arranged from the lateral tapping side of feed liquor, and the protruding runner mouth of adjacent two row's water conservancy diversion staggers setting；Described water conservancy diversion projection is vertical bar shaped or herringbone；This flat-plate solar heat collector includes transparent cover plate, heat-absorbing plate core, heat-insulation layer and housing；Described transparent cover plate, heat-absorbing plate core and heat-insulation layer be arranged in parallel the most successively, and the smooth metallic plate of described heat-absorbing plate core is affixed to heat-insulation layer towards transparent cover plate, wavy metal plate；Filling superconduction contact heat transfer working medium in described heat-absorbing plate core, its composition is the mixture of 1,3-PD, water and preservative, and wherein 1,3-PD, water and preservative all mix according to the weight ratio of 5:4.5:0.5, and described preservative is neutral organic carboxyl acid.
The flat-plate solar heat collector of ultra-thin superconductive type heat-absorbing plate core the most according to claim 1, it is characterized in that: the flat-plate solar heat collector of described ultra-thin superconductive type also includes one for the metal outer frame installing transparent cover plate, heat-absorbing plate core and heat-insulation layer, described metal outer frame is made up of the back frame of side frame and side frame bottom, transparent cover plate is fixed in the side frame top of metal outer frame, and and heat-absorbing plate core between leave air heat insulating layer.
The flat-plate solar heat collector of ultra-thin superconductive type heat-absorbing plate core the most according to claim 2, it is characterised in that: the side frame of described metal outer frame uses monolithic molding with back frame or uses split type, and the most split type is by bolt or to snap connection fixing.
The flat-plate solar heat collector of ultra-thin superconductive type heat-absorbing plate core the most according to claim 1, it is characterised in that: described flat-plate solar heat collector is sequentially connected in series or composition heat exchange array in parallel by connecting pipe fitting.
The flat-plate solar heat collector of ultra-thin superconductive type heat-absorbing plate core the most according to claim 1, it is characterised in that: the 1,3-PD in described superconduction contact heat transfer working medium replaces with methanol or ethylene glycol or acetone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410004381.0A CN103759432B (en) | 2014-01-06 | 2014-01-06 | A kind of Superthin superconducting-typeheat heat absorbing plate core and flat-plate solar collector |
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| CN104467660A (en) * | 2014-12-10 | 2015-03-25 | 辽宁远东换热设备制造有限公司 | Special heat exchanger for solar cell panel |
| CN104976801A (en) * | 2015-06-05 | 2015-10-14 | 孙红琴 | Heat collecting plate core and flat-plate type solar thermal collector |
| CN105490638A (en) * | 2015-12-06 | 2016-04-13 | 上海博阳新能源科技有限公司 | High-thermal conductivity photoelectric and photothermal board |
| CN109812985A (en) * | 2019-01-11 | 2019-05-28 | 赵军 | A kind of solar energy heating slot and its mounting arrangements structure |
| CN110132715B (en) * | 2019-04-10 | 2024-04-19 | 中国石油大学(华东) | Adjustable symmetrical multichannel diversion erosion corrosion test system and test method |
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| DE3634972A1 (en) * | 1986-10-14 | 1988-04-21 | Interatom | Solar collector of simple design |
| CN2415320Y (en) * | 2000-03-17 | 2001-01-17 | 李业新 | Solar heat-collecting panel core |
| CN102230677A (en) * | 2011-06-22 | 2011-11-02 | 广东五星太阳能股份有限公司 | Flat solar air heat exchanger |
| CN102706016B (en) * | 2012-06-07 | 2013-08-14 | 西藏自治区能源研究示范中心 | Absorber plate core for flat plate solar thermal collector and solar thermal collector |
| RU128297U1 (en) * | 2012-12-05 | 2013-05-20 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | SOLAR COLLECTOR WITH HEAT EXCHANGE IN LIQUID FILMS |
| CN203671950U (en) * | 2014-01-06 | 2014-06-25 | 南通星昀能源科技有限公司 | Ultra-thin and super-conductive heat absorption plate core and flat plate type solar thermal collector |
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| 浅谈分体承压式太阳能热水系统的传热介质;梁宏伟;《太阳能》;20110331(第5期);第43-45页 * |
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