CN201852335U - Solar heat-absorbing panel core capable of preventing electrochemical corrosion - Google Patents
Solar heat-absorbing panel core capable of preventing electrochemical corrosion Download PDFInfo
- Publication number
- CN201852335U CN201852335U CN2010206046345U CN201020604634U CN201852335U CN 201852335 U CN201852335 U CN 201852335U CN 2010206046345 U CN2010206046345 U CN 2010206046345U CN 201020604634 U CN201020604634 U CN 201020604634U CN 201852335 U CN201852335 U CN 201852335U
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- CN
- China
- Prior art keywords
- aluminium sheet
- electrochemical corrosion
- solar heat
- absorbing panel
- panel core
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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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- Photovoltaic Devices (AREA)
Abstract
The utility model provides a solar heat-absorbing panel core capable of preventing electrochemical corrosion, which comprises a copper pipe and an aluminum plate, which are welded with each other, wherein a magnesium metal film layer is coated on the welding surface of the aluminum plate in the position close to the welding part. In the solar heat-absorbing panel core capable of preventing electrochemical corrosion, the magnesium metal film layer is coated on the welding surface of the aluminum plate in the position close to the welding part, and electrochemical reaction can occur between the magnesium metal film layer and the copper pipe in the environment of humid air media, so that the magnesium metal film layer is sacrificed to protect the aluminum plate from being corroded, the electrochemical reaction between the copper pipe and the aluminum plate is effectively prevented, and the quality the service life of the solar heat-absorbing panel core are guaranteed.
Description
Technical field
The utility model relates to field of solar energy, relates in particular to a kind of evolutionary approach of solar absorber plate core.
Background technology
The utilization of solar energy has become of energy field and has given priority to direction.The critical component of common flat-plate solar collector is a heat-absorbing plate core, and the performance of heat-absorbing plate core has determined the quality of solar thermal collector to a great extent.Heat-absorbing plate core generally is made up of the fin and the tubing of copper or aluminium material, adopts ultrasonic bonding, laser weld to form usually, or adopts process for machining inflation and mechanical press to form.Because the price of copper is higher, generally speaking the heat-absorbing plate core of copper aluminium ultrasonic bonding is to make heat pipe with copper pipe, and aluminium sheet or aluminum strip band are as the heat absorption fin, both are integrally welded by supersonic welder, this heat-absorbing plate core can be so that the pressure-bearing property of solar thermal collector be better, and moderate, therefore obtain extensive approval and a large amount of use in market.Yet,, cause constantly corrosion and coming off of aluminium sheet because two kinds of different metals of copper and aluminium can meet humid air or steam and then produce electrochemical reaction at copper aluminium binding site.Simultaneously, solar thermal collector poorly sealed invaded airborne wet steam or rainwater, can produce a large amount of high hot water vapor in the cavity, causes the aluminium sheet corrosion of heat-absorbing plate core and finally causes solar thermal collector to damage and ineffective.
Therefore, existing solar absorber plate core needs to improve.
Summary of the invention
The purpose of this utility model provides a kind of solar absorber plate core that can prevent electrochemical corrosion, is intended to solve the technological deficiency that aluminium sheet that existing solar absorber plate exists is corroded easily.
For realizing above-mentioned utility model purpose, the solar absorber plate core that can prevent electrochemical corrosion that the utility model provides comprises copper pipe and the aluminium sheet that is welded to each other, at the close welding position coating of the solder side of aluminium sheet magnesium metallic diaphragm.
Further, described aluminium sheet is fin or made of one piece aluminium sheet.
Further, the whole solder side coating magnesium metallic diaphragm of described aluminium sheet.
Than prior art; the solar absorber plate core that can prevent electrochemical corrosion that the utility model provides is coated with the magnesium metallic diaphragm by the solder side at aluminium sheet near the welding position; under the environment that the malaria medium is arranged; magnesium metallic diaphragm and copper pipe produce electrochemical reaction; so just protect aluminium sheet to sacrifice the magnesium metallic diaphragm; it is not corroded, has effectively stoped the electrochemical corrosion between copper pipe and the aluminium sheet, guaranteed the quality and the service life of solar absorber plate core.
Description of drawings
Fig. 1 is the structural representation that the utility model can prevent the solar absorber plate core of electrochemical corrosion.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
In conjunction with referring to shown in Fig. 1; the solar absorber plate core that can prevent electrochemical corrosion that the utility model preferred embodiment provides comprises copper pipe 1 and the aluminium sheet 2 that welds with copper pipe 1; solder side at aluminium sheet 2 sprays one deck magnesium metallic diaphragm 3 near the welding position with arc-spraying machine; under the environment that the malaria medium is arranged; magnesium metallic diaphragm 3 produces electrochemical reaction with copper pipe 1; so just protect aluminium sheet 2, it is not corroded to sacrifice magnesium metallic diaphragm 3.
The above only is preferred embodiment of the present utility model, not in order to restriction the utility model.For example, aluminium sheet 2 not necessarily is confined to shape and the form among the figure, also can adopt the form and copper pipe 1 welding of aluminium fin, and the quantity of aluminium sheet 2 etc. also can be according to the actual conditions adjustment; For better protection aluminium sheet 2, can certainly be at the whole solder side coating magnesium metallic diaphragm 3 of aluminium sheet 2.All any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. can prevent the solar absorber plate core of electrochemical corrosion, it comprises copper pipe and the aluminium sheet that is welded to each other, and it is characterized in that, at the close welding position coating of the solder side of aluminium sheet magnesium metallic diaphragm.
2. the solar absorber plate core that can prevent electrochemical corrosion according to claim 1 is characterized in that, described aluminium sheet is fin or made of one piece aluminium sheet.
3. the solar absorber plate core that can prevent electrochemical corrosion according to claim 1 is characterized in that, the whole solder side coating magnesium metallic diaphragm of described aluminium sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206046345U CN201852335U (en) | 2010-11-14 | 2010-11-14 | Solar heat-absorbing panel core capable of preventing electrochemical corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206046345U CN201852335U (en) | 2010-11-14 | 2010-11-14 | Solar heat-absorbing panel core capable of preventing electrochemical corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201852335U true CN201852335U (en) | 2011-06-01 |
Family
ID=44094726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206046345U Expired - Fee Related CN201852335U (en) | 2010-11-14 | 2010-11-14 | Solar heat-absorbing panel core capable of preventing electrochemical corrosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201852335U (en) |
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2010
- 2010-11-14 CN CN2010206046345U patent/CN201852335U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20131114 |