CN103411321B - A kind of flat type solar heat collector - Google Patents
A kind of flat type solar heat collector Download PDFInfo
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- CN103411321B CN103411321B CN201310328159.1A CN201310328159A CN103411321B CN 103411321 B CN103411321 B CN 103411321B CN 201310328159 A CN201310328159 A CN 201310328159A CN 103411321 B CN103411321 B CN 103411321B
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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 invention provides a kind of flat type solar heat collector, comprise body, heat-collecting plate core and glass plate, described heat-collecting plate core adopts coil pipe type plate core, it is characterized in that described body becomes the box body of an opening by one piece of sheet metal bent jointing, and wherein two relative edges of this box body become stepped toward internal bend, the inner space of box body is made to form a groove installation position coincide with the size of glass plate near opening part, described glass plate is fixed on this groove installation position, described heat-collecting plate core is fixed on the stepped back side of groove installation position, a confined space is formed between heat-collecting plate core and body, this confined space is filled with foaming thermal-insulating, a heat-dissipating space is formed between heat-collecting plate core and glass plate, the distance of this heat-dissipating space is equal to step-thickness.Structure of the present invention is simple, good rigidly, and convenient connection and leak detection are remedied.Improve fin efficiency and collecting efficiency.Be thinned the air thickness of heat collector inside, reduce heat loss through convection, also improve heat-insulating property.
Description
Technical field
The invention belongs to solar thermal collector construction applications, particularly relate to a kind of flat-plate solar heat collector.
Background technology
Due to the environmental pollution that shortage and the conventional energy resource of the energy bring, the utilization of the regenerative resource of environmental protection becomes a large focus.And the solar energy of " inexhaustible " is more and more subject to people's attention and favors.Also conventional solar water heater is had to solar heat pump to solar energy heating utilization, solar heating, solar energy combined air conditioner future development, so high pressure-bearing, freeze proof, simply, reliably, life-span is long, and can meet multiple working medium and run the multi-functional of needs, high-performance solar heat collector becomes the key addressed this problem.
Solar thermal collector is critical piece solar radiant energy being converted into heat energy.Different with operating temperature according to thermal-arrest mode, be generally divided into focusing and non-focusing formula two class.In non-focusing formula, mainly contain closing-sunning type heat collector, flat-plate collector and vacuum tube type heat collector etc.Cold-producing medium can be adopted to only have flat-plate collector as working medium.
Flat plate solar water heater have passed through the development of decades, and technology is more ripe and perfect, and has possessed other advantageous feature not available for type solar energy.
1. be particularly suitable for and architecture-integral requirement.Flat plate solar water heater is due to its planar structure characteristic, and in the architecture-integral application of solar energy, morphosis is random flexibly, is not subject to the constraint of form or size during design, is easy to realize the combination with building element.The collecting plate of adding it is metal material, conveniently can adopt the connected modes such as silk knot, welding, for installation, maintenance and use are provided convenience.
2. there is the higher thermal efficiency.Flat-plate solar collector is but a continuous print plane, and whole heat collector surface can accept sunshine.So under identical daylighting area and intensity of sunshine, the mean daily discharge of flat plate solar water heater is generally higher than solar vacuum-tube water heater.
3. there is good load performance.Because the absorber plate of flat-plate solar collector is made up of metal tube material, the connection of heat collector and miscellaneous part also adopts metal parts, therefore, can bear larger pressure.
4. stable performance during composition Iarge-scale system.For the place that some are large-scale, as places such as hotel, natatorium, factories, when using solar water heater, a lot of block solar thermal collector is often needed to form large-scale system.
Existing common flat type solar heat collector as shown in Figure 1, be made up of frame 11, seal trim strip 12, daylighting glass 13, insulation gas-bearing formation 14, heat absorbing sheet 15, heat transfer medium pipe 16, heat-insulation layer 17, daylighting glass 13 and heat absorbing sheet 15 are all installed on frame 11, insulation gas-bearing formation 14 is between daylighting glass 13 and heat absorbing sheet 15, heat-insulation layer 17 is fixedly installed on the back side of heat absorbing sheet 15, heat transfer medium pipe 16 is spacedly distributed in heat absorbing sheet 15, daylighting glass 13 by seal trim strip 12 press seal on frame 1.Existing flat type solar heat collector uses fin tube for main heat collector band mostly, and with tube connector soldering group synthesis collector plate core, its subject matter existed is as follows:
1. the heat-insulating property of the flat-plate solar collector of this structure is poor, and the heat part that heat absorbing sheet absorbs passes to the heat transfer medium in heat transfer medium pipe, becomes available heat; And another part makes the gas temperature in insulation gas-bearing formation raise, the partial heat in insulation gas-bearing formation is lost by metal edges framework and daylighting glass; Some heat is directly lost to the external world through glass with the form of long-wave radiation.Due to the Contact defective tightness of each parts, there is larger leakage heat.
2. the flat plate collector component of this structure is many, poor rigidity, and intensity is low, causes its mechanical performance lower, and technical requirement and the restriction of installation are many.
3. welding junction is many, and weld easily corrodes, and bearing capacity is poor, easily leaks, and have impact on the life-span.
4. standardization level is lower, is not suitable for large-scale standardized production, and the dimensional accuracy of final products is low.
Adopt seal trim strip structure, the life-span is short, consumable accessory mistake, and maintenance when being damaged is more difficult.
Adopt manifold structure, the flow velocity of its heat-transfer working medium is low, and maldistribution have impact on exchange capability of heat.
For the deficiency of wing pipe type thermal-arrest tube core, prior art also uses coil pipe type, if Chinese Patent Application No. is 201010256406.8 disclose a kind of plate core, for flat-plate solar heat collector, can be specifically tube-sheet type plate core or coil pipe type plate core, comprise absorber plate and be welded on the comb on described absorber plate, described comb has the welding plane contacted with described absorber plate plate face, cross section can be the shapes such as closed " U " font of closed " C " font of " D " font, rectangle, triangle, opening or opening.
But no matter existing heat collector is adopt wing pipe type or coil pipe type, its heat-collecting plate core and glass cover-plate are arranged on body, all by arranging bracing frame on the frame of body, heat-collecting plate core and glass cover-plate are placed on bracing frame also fixing, this structure not only exists installs complexity, the problems such as intensity is low, and makes between heat-collecting plate core and glass cover-plate, and heat-collecting plate core, the heat-dissipating space that formed between glass cover-plate and body are comparatively large, energy consumption is run off serious.
Summary of the invention
Object of the present invention is exactly to overcome the deficiency existing for prior art, provides a kind of component few, good rigidly, installs and easy to connect, and efficiency is high, is applicable to and the flat-plate solar collector of Integration of building.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of flat type solar heat collector, comprise body, heat-collecting plate core and glass plate, described heat-collecting plate core adopts coil pipe type plate core, described body becomes the box body of an opening by one piece of sheet metal bent jointing, and wherein two relative edges of this box body become stepped toward internal bend, the inner space of box body is made to form a groove installation position coincide with the size of glass plate near opening part, described glass plate is fixed on this groove installation position, described heat-collecting plate core is fixed on the stepped back side of groove installation position, a confined space is formed between heat-collecting plate core and body, this confined space is filled with foaming thermal-insulating, a heat-dissipating space is formed between heat-collecting plate core and glass plate, the distance of this heat-dissipating space is equal to step-thickness.Technical scheme of the present invention by forming body by bent jointing as one block of metal, and it is stepped to be also formed in the inside of body in the process of bending, this stair-stepping two sides mounting glass plate and heat-collecting plate core respectively, make structure of the present invention simple, the component adopted is minimum, install be connected all more convenient, and can by arranging stair-stepping concrete structure, heat-dissipating distance between adjustment glass plate and heat-collecting plate core, and at the space filling-foam insulation material that heat-collecting plate core and body are formed, effectively reduce the heat energy loss of heat-collecting plate core.
The distance of described heat-dissipating space can adjust according to actual conditions, is provided as 5-25mm, preferably adopts 10mm.
Described body adopts monoblock steel plate, and a rectangular blocks is all cut away in the corner of steel plate, and four limit bent jointings form box body, and corresponding longer relative both sides are bent into stepped.
Working media of the present invention is water or cold-producing medium, therefore can be that the conventional solar boilers mode of water uses with working media, can use by the direct expanding solar heating pump evaporimeter using cold-producing medium as working media again.
Advantage of the present invention: do refrigerating medium with water or cold-producing medium just available, function is many, adaptable; Thermal-arrest ability is strong, high insulating effect, and collecting efficiency is high; Pipeline adopts single heat exchange tube, and bearing capacity is strong, good effect of heat exchange; Can run by free convection mode under non-power state, be beneficial to gas-liquid separation, improve heat transfer effect; Life-span is long, steady quality, and standardization level is high, is applicable to large-scale production; Thickness is little, and component is few, good rigidity, is easy to install, can directly as external wall or roofing heat insulating material; Convenient to connect, to change and easy to maintenance.
Accompanying drawing explanation
Fig. 1 is Conventional tablet solar thermal collector schematic diagram.
Fig. 2 is the schematic diagram of heat-collecting plate core of the present invention.
Fig. 3 is the schematic diagram of body of the present invention.
Fig. 4 is the schematic diagram that the present invention assembles.
Fig. 5 is the schematic diagram of profile of the present invention and adapter.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further.
As shown in Figure 4, comprise body 1, heat-collecting plate core 6, glass plate 4 and insulation material 5 and form, described heat-collecting plate core 6 is made up of the absorber plate 2 welded together and coiled pipe 3 structure of the present invention.
Wherein body construction of the present invention as shown in Figure 3, adopts the cold-rolled steel sheet of 1-2mm, first cut away corner, what then become to preset by four edge breaks is stepped, become frame, then four angles are adopted conventional electric arc welding, make the body 1 of flat-plate solar collector.
Copper pipe as shown in Figure 2, is bent into required loop by heat-collecting plate core 6 structure of the present invention, forms coiled pipe 3, and is welded into an entirety with the absorber plate 2 that monoblock copper coin or aluminium sheet are formed, the lighting surface of absorber plate 2 sprays selective absorbing material.
Heat-collecting plate core 6 is put into body 1, and in cavity, filling-foam insulation material 5, plays insulation, improves the effect of rigidity.Individual layer or the compound glass plate 4 of high transmission rate is added a cover on top.Body 1 backboard or side direction have welded stand connection in advance, are connected with the support of standard.
Further, whole device just outer viewing only have body, glass plate and support three part form, only have two connectors exposed 8, decrease interface quantity, and expose, facilitate joint connection in site and leak detection, remedy also relatively easy many.Adopt closely knit welding between coiled pipe 3 with absorber plate 2, reduce thermal contact resistance, improve fin efficiency and collecting efficiency.Adopt selective coating to strengthen solar absorption ability, and the absorber plate 2 of monoblock increase receiving area, avoids the gap existed when adopting fin tube, is thinned the air thickness of heat collector inside, reduces heat loss through convection, also improve heat-insulating property.
Concrete preparation process of the present invention is as follows:
1, coiled pipe adopts the copper pipe material that heat conductivility is good, suitably increases pipe thickness, improves its bearing capacity, making working media when being water, adopting the light pipe compared with Large Diameter Pipeline, thus reducing with flow resistance, avoiding incrustation and blocking.To be bent into by copper pipe set snakelike with automatic pipebender, coiled pipe forms closed figure by equally spaced straight line with the circular arc be connected, different and adjust according to discharge connection position.Coiled pipe is arranged in the mode of bottom in and top out, owing to adopting water to do refrigerating working medium, density after heating up can be utilized to reduce and the buoyancy lift that causes, run under unpowered condition by free convection mode.
2, using the copper coin of monoblock or aluminium sheet as absorber plate, absorber plate is welded with the coiled pipe bent is closely knit, thus thermal contact resistance between absorber plate and coiled pipe can be reduced, improve heat exchange property.May there is larger distortion after welding, need through punching press setting, this just obtains heat-collecting plate core.
3, heat-collecting plate core is carried out coating for selective absorption without the side of coiled pipe, the kind of coating can be selected as required.
4, body adopts the cold-rolled steel sheet of 1-2mm, first cuts away corner, and the perforate of reserved heat-collecting plate core discharge connection, then according to drawing requirement four edge breaks are become to preset stepped, become frame, then four angles adopted conventional electric arc welding.According to the needs installed overleaf or side welding support connector.
5, derust to body, pickling, then sprays with oxirane.The resistance to corrosion of body can be improved, also can adopt different colors, improve aesthetic property, better and Integration of building.
6, heat-collecting plate core is put into body, rely on the steel plate location of location.Polyurethane foam material is injected from reserved aperture, by special tool positioned, after band foaming, must clean out on burr, particularly absorber plate that cleaning foaming is formed.
7, by sealing joint strip on the surrounding pad of the high transparent glass of individual layer or bilayer, put into the draw-in groove of this overground part, fix by stainless steel metal part, the groove uniform thickness that the thickness of glass plate and body are reserved, after installing like this, whole solar thermal collector becomes a flat board, its dimensionally stable, good rigidity, convenient installation.
8, valve connections is welded by two overhanging adapters of heat-collecting plate core, or expander, rest and reorganize, adopt welding or cutting ferrule mode to be connected with total mistake during ready-made installation, thus form solar heat collector array.
Claims (8)
1. a flat type solar heat collector, comprise body, heat-collecting plate core and glass plate, described heat-collecting plate core adopts coil pipe type plate core, it is characterized in that, described body becomes the box body of an opening by one piece of sheet metal bent jointing, and wherein two relative edges of this box body become stepped toward internal bend, the inner space of box body is made to form a groove installation position coincide with the size of glass plate near opening part, described glass plate is fixed on this groove installation position, described heat-collecting plate core is fixed on the stepped back side of groove installation position, a confined space is formed between heat-collecting plate core and body, this confined space is filled with foaming thermal-insulating, a heat-dissipating space is formed between heat-collecting plate core and glass plate, the distance of this heat-dissipating space is equal to step-thickness, described heat-dissipating space distance is 5-25mm, described body adopts monoblock steel plate, a rectangular blocks is all cut away in the corner of steel plate, four limit bent jointings form box body, corresponding longer relative both sides are bent into stepped.
2. flat type solar heat collector according to claim 1, it is characterized in that described heat-collecting plate core puts into body, with securing member or steel disc location, described glass plate is positioned at above body interior, glass plate adopts press strip or bolt to fix, press from both sides one deck sealing strip between glass plate and body, the side direction gap between glass plate and body then adopts weather proofing sealant to fill.
3. flat type solar heat collector according to claim 1, it is characterized in that described heat-collecting plate core is welded on absorber plate by coiled pipe to form, described coiled pipe is curved by single copper pipe automatic pipebender and forms, two ports of coiled pipe stretch out originally external, become two connectors exposed, inject water or cold-producing medium in coiled pipe, described absorber plate is made by copper coin or aluminium sheet.
4. flat type solar heat collector according to claim 3, the lighting surface that it is characterized in that described absorber plate sprays selective absorbing material.
5. flat type solar heat collector according to claim 1, is characterized in that the backboard of described body or frame place are welded with stand connection, adopts the connected mode of clamping or bolt to be connected with support.
6. flat type solar heat collector according to claim 1, is characterized in that described body adopts thickness to be that the cold-rolled steel sheet of 1-2mm is made.
7. flat type solar heat collector according to claim 1, is characterized in that described glass plate adopts single or multiple lift high permeability glass cover plate.
8. flat type solar heat collector according to claim 1, is characterized in that described foaming thermal-insulating is polyurethane heat insulation material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310328159.1A CN103411321B (en) | 2013-07-31 | 2013-07-31 | A kind of flat type solar heat collector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310328159.1A CN103411321B (en) | 2013-07-31 | 2013-07-31 | A kind of flat type solar heat collector |
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| CN103411321A CN103411321A (en) | 2013-11-27 |
| CN103411321B true CN103411321B (en) | 2015-10-28 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105928221B (en) * | 2016-05-20 | 2017-12-01 | 深圳诺必达节能环保有限公司 | Heat conducting pipe heat exchange warming system from solar energy |
| CN106322834B (en) * | 2016-08-31 | 2018-10-30 | 北京建筑大学 | The flow control method of direct-expansion type heat pump assembly and thermal-arrest liquid |
| CN110595099A (en) * | 2019-10-09 | 2019-12-20 | 中山华享家科技有限公司 | Solar-assisted evaporation heat pump system |
| CN110926070A (en) * | 2019-11-07 | 2020-03-27 | 广东申菱环境系统股份有限公司 | Thermosiphon passive defrosting and condensing system and control method thereof |
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| US5373672A (en) * | 1990-08-20 | 1994-12-20 | Josef Gartner & Company | Arrangement of mounting sections for the fastening of a pane of glass |
| WO1998008117A1 (en) * | 1996-08-16 | 1998-02-26 | Johann Windholz | Lens tile and solar energy system |
| CA2569360A1 (en) * | 2005-11-29 | 2007-05-29 | Paul Kerr | Improved outdoor solar collector and integrated display panel |
| CN201237386Y (en) * | 2008-04-11 | 2009-05-13 | 赵贵 | Heat pipe plate type solar heat collector |
| CN201583009U (en) * | 2010-01-25 | 2010-09-15 | 南通大学 | Thermal-insulation micro-bracket vacuum flat-plate solar water heater |
| CN101839557A (en) * | 2010-05-14 | 2010-09-22 | 严锦璇 | Integral solar flat-plate heat collector |
| CN201787744U (en) * | 2010-04-06 | 2011-04-06 | 浙江斯帝特新能源有限公司 | Flat plate solar energy heat collector |
| CN102287931A (en) * | 2011-07-11 | 2011-12-21 | 无锡格林波特环保科技有限公司 | High-efficiency flat-plate type heat collector |
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2013
- 2013-07-31 CN CN201310328159.1A patent/CN103411321B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5373672A (en) * | 1990-08-20 | 1994-12-20 | Josef Gartner & Company | Arrangement of mounting sections for the fastening of a pane of glass |
| WO1998008117A1 (en) * | 1996-08-16 | 1998-02-26 | Johann Windholz | Lens tile and solar energy system |
| CA2569360A1 (en) * | 2005-11-29 | 2007-05-29 | Paul Kerr | Improved outdoor solar collector and integrated display panel |
| CN201237386Y (en) * | 2008-04-11 | 2009-05-13 | 赵贵 | Heat pipe plate type solar heat collector |
| CN201583009U (en) * | 2010-01-25 | 2010-09-15 | 南通大学 | Thermal-insulation micro-bracket vacuum flat-plate solar water heater |
| CN201787744U (en) * | 2010-04-06 | 2011-04-06 | 浙江斯帝特新能源有限公司 | Flat plate solar energy heat collector |
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| CN102287931A (en) * | 2011-07-11 | 2011-12-21 | 无锡格林波特环保科技有限公司 | High-efficiency flat-plate type heat collector |
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Address after: 528313 Shunde City, Foshan province Chencun town machinery and equipment Park, No. ten, No. Road, No. 8 Patentee after: GUANGDONG SHENLING AIR-CONDITIONING EQUIPMENT CO., LTD. Address before: 528313 Shunde City, Foshan province Chencun town machinery and equipment Park, No. ten, No. Road, No. 8 Patentee before: Guangdong Shenling Air Conditioning Equipment Co., Ltd. |