CN102607204A - Solar heat concentration core with micro-battery corrosion resistant protecting structure - Google Patents
Solar heat concentration core with micro-battery corrosion resistant protecting structure Download PDFInfo
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- CN102607204A CN102607204A CN2012100653723A CN201210065372A CN102607204A CN 102607204 A CN102607204 A CN 102607204A CN 2012100653723 A CN2012100653723 A CN 2012100653723A CN 201210065372 A CN201210065372 A CN 201210065372A CN 102607204 A CN102607204 A CN 102607204A
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- solar heat
- endothermic substrate
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- copper pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The invention provides a solar heat concentration core with a micro-battery corrosion resistance protecting structure. The solar heat concentration core is used on a solar heat concentrator and comprises a metal heat absorbing base plate; a plane of the metal heat absorbing base plate facing the sunshine is plated with a solar selective absorbing membrane layer and the other plane of the metal heat absorbing base plate is adhered to and welded with a copper pipe for transmitting the heat of the metal heat absorbing base plate; an air contact plane of a welding part of the copper tube and the metal heat absorbing base plate is coated with a layer of micro-battery corrosion-resistant organic resin for isolating water or corrosive air; and the copper tube transmits a heated fluid to a heat storage system out of the solar heat concentration core. With the solar heat concentration core provided by the invention, the welding boundary at the welding part is prevented from being contacted with damp air, water and corrosive damp environment, so that electric chemical corrosion is avoided; and the service life is prolonged.
Description
Technical field:
The present invention relates to the solar heat-collecting core of solar energy optical-thermal comprehensive utilization, particularly be the solar heat-collecting core that is used on the solar thermal collector with anti-micro-cell corrosion protection structure.
Background technology:
Solar thermal collector is the solar heat utilization commodity of the marketization.The core component of flat type solar heat collector is the thermal-arrest core; It is welded as a whole and forms by being coated with thermal-arrest plate and copper pipe that selectivity absorbs the rete of solar spectral; Heating agent after the thermal-arrest core copper pipe conveying thermal-arrest plate absorption solar heat or deep fat or hydrothermal fluid are to the effect of heat reservoir such as water tank or the like performance or exchange heat energy; As heat water etc., produce regenerative resource thus.
The thermal-arrest core past is that copper metal substrate and copper pipe weld together composition; The thermal-arrest core is because of being with a kind of metal; Do not have potential difference, the thermal-arrest core uses on the building roof for a long time, and that is afraid of that corrosive atmosphere environment by the sea uses; Micro-cell corrosion does not take place yet, and the service life of thermal-arrest core is all more than 15 years.Because copper product appreciates; More extensively promote the use of solar thermal collector in addition; In order to pursue more cheaply the thermal-arrest core so that solar thermal utilization has more marketability; People begin with aluminum metal substrate Alloy instead of Copper substrate because weld can produce albronze because of adopting laser fusion welding between aluminium base and the copper pipe, between the potential difference that exists and cause intercrystalline corrosion and the corrosion of electric corner; Particularly humid air with the chlorion air ambient is arranged, make not reach in service life of thermal-arrest core the service life in 15 years in the past.To this problem, the dealer has used the supersonic welding connection technology instead and has not produced melting welding, avoids producing albronze as far as possible and causes the corrosion of intercrystalline corrosion and electric corner, and prolong thermal-arrest core service life.Because two metal material contact-making surfaces are to be bumped into each other; When thermal-arrest core environment for use humidity has chloride ion corrosion property air to possess steam etc. for a long time at weld interface, still can produce micro-cell corrosion, this corrosion is along with long duration of action; Can be with copper pipe wall thickness corrosion failure; Produce albronze for laser weld because of melting welding tube wall and substrate especially, the wall thickness corrosion of copper pipe can be faster, intercepts the weld interface of weld or the albronze melting welding point of generation and contact with humid air, water and corrosivity wet environment; Becoming the key technology that prevents to produce micro-cell corrosion here, also is to improve the thermal-arrest core and the key point in heat collector life-span.
Summary of the invention:
The objective of the invention is in order to overcome above deficiency; Provide a kind of weld interface that intercepts weld to contact and produce electrochemical corrosion, improve the solar heat-collecting core with anti-micro-cell corrosion protection structure in thermal-arrest core and heat collector service life with humid air, water and corrosivity wet environment.
The objective of the invention is to realize like this:
The present invention has the solar heat-collecting core of anti-micro-cell corrosion protection structure; A metal endothermic substrate is arranged; The metal endothermic substrate simultaneously is coated with the solar selective absorbing film layer and is close on the another side and is welded with the copper pipe of carrying the absorber plate heat towards sunshine; Copper pipe and metal endothermic substrate weld and air contact-making surface are coated with the organic resin that one deck intercepts the anti-micro-cell corrosion of water or corrosive atmosphere; The fluid that copper pipe will be heated is transported in the heat reservoir beyond the thermal-arrest core; Thereby the weld interface that intercepts weld contacts with the corrosivity wet environment with humid air, water and does not produce electrochemical corrosion, has improved thermal-arrest core and heat collector service life.
In the above-mentioned solar selective absorbing film layer electroplating black chromium layer is arranged, between electroplating black chromium layer and metal endothermic substrate, be coated with one deck at least and have the copper layer of infrared external reflection function and/or the nickel dam of one deck with infrared external reflection function at least.
Above-mentioned solar selective absorbing film layer is to adopt the method for vacuum magnetic-control sputtering to be plated on the metal endothermic substrate, outwards is respectively aluminium or copper layer, the silicon nitride with photo-thermal translation function or silicon oxynitride layer, evanohm or evanohm oxide skin(coating), silicon nitride or the silicon oxynitride layer with infrared external reflection function by the metal endothermic substrate.
Above-mentioned metal endothermic substrate is the aluminum metal endothermic substrate, and copper pipe and aluminum metal endothermic substrate are to adopt method for laser welding to be welded as a whole, and pad distributes on the copper pipe both sides.
Above-mentioned metal endothermic substrate is the aluminum metal endothermic substrate; Copper pipe and aluminum metal endothermic substrate are to adopt the ultrasonic welding method weldering for one, have 2 to 5mm width to be welded as a whole between copper pipe circular arc and the aluminum metal endothermic substrate plane, and ultrasonic bonding has increased the contact area of copper pipe and aluminum metallic material than Laser Welding; Thereby increased heat transfer area; Heat conduction efficiency is higher, has reduced or does not produce albronze and cause crystal orientation corrosion and galvanic corrosion, improves service life.
Above-mentioned organic resin is a thermosetting resin, and heat-collecting core board pipe temperature reaches 100 ℃ even 150 ℃ during because of working condition, and thermoplastic resin is not all right, and resistant to thermal aging not.Thermosetting resin coating processes flow process is simple; Resin adds curing agent; Few partly solvent, manual brush or machine spray laggard 100 ℃ of drying tunnels accelerate to solidify coating, the solar heat-collecting core that the coating adhesion strength is strong, the life-span long, moisture-proof anticorrosive has anti-micro-cell corrosion protection structure; Copper pipe and absorber plate weld and air contact-making surface are coated with organic tree that one deck intercepts the anti-micro-cell corrosion of water or corrosion air, resistant to thermal aging.
Above-mentioned thermosetting resin is an organic siliconresin, or epoxy resin, or acrylic resin or mylar.
Be added with carbon black in the above-mentioned thermosetting resin, be added with carbon black in the resin, not only can increase the thermosetting resin bond strength, also can increase of the absorption of coating place, improve heat absorption efficiency solar heat.
Solar heat-collecting core with anti-micro-cell corrosion protection structure of the present invention; Thereby the weld interface of having realized intercepting weld contacts with the corrosivity wet environment with humid air, water and not to produce electrochemical corrosion, has improved thermal-arrest core and heat collector service life.
Description of drawings:
Fig. 1 receives the structural representation of rete for aluminum metal endothermic substrate among the present invention and solar selectively.
Fig. 2 receives another structural representation of rete for metal endothermic substrate of the present invention and solar selectively.
The solar heat-collecting core structural representation of Fig. 3 anti-micro-cell corrosion protection structure for the present invention has.
Another structural representation of solar heat-collecting core of Fig. 4 anti-micro-cell corrosion protection structure for the present invention has.
The specific embodiment:
Embodiment 1:
Fig. 1～Fig. 3 has provided present embodiment 1 figure.
Referring to Fig. 1, solar selective absorbing film layer 1 is to adopt vacuum magnetic-control sputtering to be plated in aluminum metal substrate 2 on the one side of sunshine.Having by aluminum metal endothermic substrate 2 in the solar selective absorbing film layer outwards is respectively aluminium (or copper) layer 3 with infrared external reflection function; Silicon nitride (or silicon oxynitride) layer 4 with photo-thermal translation function, evanohm (or evanohm oxide) layer 5, silicon nitride (or silicon oxynitride) layer 6.
Solar selective absorbing film layer 1 also can as shown in Figure 2ly be plated in the aluminum metal substrate on the one side of sunshine.Electroplating black chromium layer 7 is arranged in the solar selective absorbing film layer, between electroplating black chromium layer 7 and aluminum metal substrate 2, be coated with copper layer 3 and nickel dam 8 that one deck has the infrared external reflection function with infrared radiation function.
Referring to Fig. 3; With being coated with among diameter 8-12mm copper pipe 9 and Fig. 1 (or Fig. 2) after solar energy selective can receive the aluminum metal substrate 2 usefulness ultrasonic welding machines welding of rete 1; Between aluminum metal substrate 2 and copper pipe 9, form ultrasonic bonding interface 10; Adopt machine spraying or artificial mode of brushing, with organic resin: promptly organic siliconresin (or thermosetting acrylic resin or epoxy resin, mylar etc.) is coated in copper pipe and the gap location that is welded to connect that is coated with solar energy receiving layer aluminum metal substrate uniformly; Solidify through organic resin; (and the operational characteristic of every kind of organic resin is all variant: the organic siliconresin solidification temperature requires high, and it is a little etc. that the serviceability temperature of mylar will be hanged down, comprehensively each condition thermosetting acrylic resin; The processing performance of epoxy resin is much better, and most preferred embodiment is supersonic welding+organic siliconresin or epoxy resin or acrylic resin.The preparing process of each organic resin and curing process have been ripe technology).After solidifying, obtain the result of Fig. 3, scribble one deck organic resin layer 11 uniformly at the gap location that is welded to connect.No matter adopt which kind of mode to be coated with to require organic resin layer be organic siliconresin or thermosetting acrylic resin or epoxy resin or mylar etc. evenly continuously; Holiday must not arranged, not then make the different metal interface produce electrochemical corrosion because of the holiday place can not intercept steam.Can adopt the resin that applies the automatic ejection of mechanism to be coated to automatically on the weld mark, accomplish protection weld mark.
Embodiment 2:
Fig. 1, Fig. 2, Fig. 4 are embodiment 2 figure.This enforcement 2 is basic identical with embodiment 1; Do not exist together is that the aluminum metal substrate 2 that is coated with solar selectively reception rete 1 welds with copper pipe 9 usefulness laser-beam welding machines; Forming space 12 between laser weld between aluminum metal substrate 2 and the copper pipe 9; Adopt machine spraying or artificial mode of brushing, with organic resin: promptly organic siliconresin is that thermosetting acrylic resin (or epoxy resin or mylar etc.) is coated in copper pipe uniformly and is coated with solar energy and receives welding link place of the aluminum metal substrate of rete.Adopt Laser Welding+organic siliconresin or epoxy resin or acrylic resin coating processes, should be close between pipe and the metal substrate as far as possible, prevent to be solidified into heat insulating coat after resin from flowing into the gap, make and become poorer than the low situation of supersonic welding conduction heat level.
Above-mentioned each embodiment is further described foregoing of the present invention, but should this scope that is interpreted as the above-mentioned theme of the present invention only not limited to the foregoing description.All technology that realizes based on foregoing all belong to scope of the present invention.
Claims (8)
1. the solar heat-collecting core that has anti-micro-cell corrosion protection structure; A metal endothermic substrate is arranged; The metal endothermic substrate simultaneously is coated with the solar selective absorbing film layer towards sunshine and is close to and is welded with the copper pipe of transferring metal endothermic substrate heat on the another side; Copper pipe and metal endothermic substrate weld and air contact-making surface are coated with the organic resin that one deck intercepts the anti-micro-cell corrosion of water or corrosive atmosphere, and the fluid that copper pipe will be heated is transported in the heat reservoir beyond the solar heat-collecting core.
2. the solar heat-collecting core with anti-micro-cell corrosion protection structure as claimed in claim 1 is characterized in that the electroplating black chromium layer is arranged in the solar selective absorbing film layer, between electroplating black chromium layer and metal endothermic substrate, is coated with one deck at least and has the copper layer of infrared external reflection function and/or the nickel dam of one deck with infrared external reflection function at least.
3. the solar heat-collecting core with anti-micro-cell corrosion protection structure as claimed in claim 1; It is characterized in that the solar selective absorbing film layer is to adopt the method for vacuum magnetic-control sputtering to be plated on the metal endothermic substrate, having from the metal endothermic substrate in the solar selective absorbing film layer outwards is aluminium or copper layer, the silicon nitride with photo-thermal translation function or silicon oxynitride layer, evanohm or evanohm oxide skin(coating), silicon nitride or the silicon oxynitride layer with infrared external reflection function.
4. like claim 1 or 2 or 3 described solar heat-collecting cores with anti-micro-cell corrosion protection structure; It is characterized in that the metal endothermic substrate is the aluminum metal endothermic substrate; Copper pipe and aluminum metal endothermic substrate are to adopt method for laser welding to be welded as a whole, and pad distributes on the copper pipe both sides.
5. like claim 1 or 2 or 3 described solar heat-collecting cores with anti-micro-cell corrosion protection structure; It is characterized in that the metal endothermic substrate is the aluminum metal endothermic substrate; Copper pipe and aluminum metal endothermic substrate are to adopt ultrasonic welding method to be welded as a whole, and have 2 to 5mm width to be welded as a whole between copper pipe circular arc and the aluminum metal endothermic substrate plane.
6. like claim 1 or 2 or 3 described solar heat-collecting cores, it is characterized in that organic resin layer is a thermosetting resin with anti-micro-cell corrosion protection structure.
7. the solar heat-collecting core with anti-micro-cell corrosion protection structure as claimed in claim 6 is characterized in that thermosetting resin is organic siliconresin or epoxy resin or acrylic resin or mylar.
8. the solar heat-collecting core with anti-micro-cell corrosion protection structure as claimed in claim 6 is characterized in that being added with in the thermosetting resin carbon black.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100653723A CN102607204A (en) | 2012-03-14 | 2012-03-14 | Solar heat concentration core with micro-battery corrosion resistant protecting structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100653723A CN102607204A (en) | 2012-03-14 | 2012-03-14 | Solar heat concentration core with micro-battery corrosion resistant protecting structure |
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| CN102607204A true CN102607204A (en) | 2012-07-25 |
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| CN2012100653723A Pending CN102607204A (en) | 2012-03-14 | 2012-03-14 | Solar heat concentration core with micro-battery corrosion resistant protecting structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56105248A (en) * | 1979-12-29 | 1981-08-21 | Nippon Light Metal Co Ltd | Solar heat collecting plate and manufacture thereof |
| JPS56119453A (en) * | 1980-02-22 | 1981-09-19 | Hitachi Chem Co Ltd | Solar heat collector and its manufacture |
| CN201852337U (en) * | 2010-11-14 | 2011-06-01 | 深圳市嘉普通太阳能有限公司 | Solar absorbing plate core capable of preventing electrochemical corrosion |
| CN201852328U (en) * | 2010-11-14 | 2011-06-01 | 深圳市嘉普通太阳能有限公司 | Solar heat absorption plate core capable of preventing electrochemical corrosion |
| CN202521913U (en) * | 2012-03-14 | 2012-11-07 | 甘国工 | Solar collector core with anti-micro battery corrosion protection structure |
-
2012
- 2012-03-14 CN CN2012100653723A patent/CN102607204A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56105248A (en) * | 1979-12-29 | 1981-08-21 | Nippon Light Metal Co Ltd | Solar heat collecting plate and manufacture thereof |
| JPS56119453A (en) * | 1980-02-22 | 1981-09-19 | Hitachi Chem Co Ltd | Solar heat collector and its manufacture |
| CN201852337U (en) * | 2010-11-14 | 2011-06-01 | 深圳市嘉普通太阳能有限公司 | Solar absorbing plate core capable of preventing electrochemical corrosion |
| CN201852328U (en) * | 2010-11-14 | 2011-06-01 | 深圳市嘉普通太阳能有限公司 | Solar heat absorption plate core capable of preventing electrochemical corrosion |
| CN202521913U (en) * | 2012-03-14 | 2012-11-07 | 甘国工 | Solar collector core with anti-micro battery corrosion protection structure |
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Application publication date: 20120725 |