CN2864454Y - Pipe arrangement for air conditioner and refrigerator - Google Patents
Pipe arrangement for air conditioner and refrigerator Download PDFInfo
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- CN2864454Y CN2864454Y CN 200520147152 CN200520147152U CN2864454Y CN 2864454 Y CN2864454 Y CN 2864454Y CN 200520147152 CN200520147152 CN 200520147152 CN 200520147152 U CN200520147152 U CN 200520147152U CN 2864454 Y CN2864454 Y CN 2864454Y
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- copper
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- alloy layer
- pipe arrangement
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Abstract
An outfitting pipe for Air conditioner and refrigerator is compounded by at least a copper or copper alloy layer and aluminum or aluminum alloy layer. Furthermore, the thickness ratio of the copper or copper alloy layer and the aluminum or aluminum alloy layer is between 1 to 1 and 1 to 40. As adopting the composite pipe structure of the copper or copper alloy layer and the aluminum or aluminum alloy layer, the utility model not only ensures the corrosion resistance of the copper or copper layer, but also saves abundant copper or copper alloy, the production cost are lowered under the case that the requirement can be ensured, furthermore, after processed by metal pressure, the joint of the copper or copper alloy layer and the aluminum or aluminum alloy layer forms a composite metal layer by mutual diffusion to make the outfitting pipe having good mechanical performance, while the pipe is processed by bending and enlarging, defects such as delaminating, crinkling, etc. will not be produced upon copper or copper alloy layer and the aluminum or aluminum alloy layer.
Description
Technical field
The utility model relates to a kind of air-conditioning and refrigerator pipe arrangement, relates in particular to a kind of pipe arrangement that adopts the sandwich construction of copper and copper alloy and aluminium and aluminium alloy compound.
Background technology
Air-conditioning and refrigerator industry are used the vehicular transfer tube of copper pipe always, as the tube connector of air-conditioner, the pipe arrangement of refrigerator etc.Because copper has good corrosion resistance and thermal conductivity, and have extraordinary mechanical performance, for example easily crooked, be convenient to sealing etc.But adopt the copper pipe cost higher, this also is one of higher reason of prices such as present air-conditioning, refrigerator.For example the copper pipe of same size equal length is compared with aluminum pipe, and the cost of aluminum pipe only is 1/4～1/5 of a copper pipe cost.So huge cost variance impels people constantly to attempt to adopt aluminum pipe to substitute copper pipe, and has also obtained the practicality of part.
But find behind the employing aluminum pipe that copper aluminium contact electrolytic etching problem is difficult to solve, people attempt to overcome such defective with regard to adopting the method that connects copper pipe at the aluminum pipe two ends like this, for example: China Patent No. is 200420040094.7, name is called the utility model patent of " being used for the adapter of the inside and outside machine of air-conditioner ", welds a bit of copper pipe at the aluminum pipe two ends exactly; China Patent No. is 02271476.6 for another example, name is called the patent of " a kind of jockey that is used for aluminium connecting tubes ", is exactly to settle the copper jockey at the aluminum pipe two ends.But, though this improvement can partly reduce cost, but brought new problem again, for example the aluminum pipe corrosion resistance is not enough, copper aluminium junction still has problem, this corrosion of contact electrolytic etching to cause phenomenons such as sealing property decline, cold-producing medium leakage, directly influences the life-span of air-conditioning and refrigerator.Therefore, require than higher occasion, still at a large amount of copper pipes that use in many corrosion resistances.
Outside above-mentioned effort, the mode that people also expect adopting two or more metal composite or plate one deck corrosion resistant metal layer in metal substitute tubing such as aluminium inside in addition again.For example Chinese patent No. 03273421.2, is called the utility model patent of " tube connector of detachable air conditioner indoor unit and outdoor unit ", adopts copper pipe to be connected the structure that covers coating afterwards again with aluminum pipe exactly; No. 02232179.9, is called " copper pipe that is coated with the reinforced metal floor " Chinese patent for another example, adopts the structure of electroplating the reinforced metal layer at the copper pipe inwall; Also having is exactly the Chinese patent that is called " brazed composited tube " as No. 02244702.4,, provided with stainless steel and the compound tubing of ferrous metal, perhaps be called the Chinese patent of " making laminated composite metal pipe " as early stage 99234557.X number,, providing with ferrous metal such as carbon steel etc. is the base material multiple tube of composite non-ferrous metal again.But with the compound metal tube of ferrous metal or stainless steel because of its should not be crooked, defective such as sealing property is not enough, the pipe arrangement that can't be used for air-conditioner, although the tubing that connects for aluminium, copper has adopted electrodeposited coating, but still can not overcome the above-mentioned defective of aluminum pipe, still can not fundamentally solve the contact electrolytic etching problem of copper-aluminium joint inside.
On the basis of above-mentioned many trials, people do not have to succeed substantially, and up to the present still at a large amount of pipe arrangements that use copper pipe as air-conditioning and refrigerator, because for air-conditioning and refrigerator, its service life is very long, generally will be above 10 years; Air-conditioning only uses in two seasons of winter in summer mostly again; annual downtime is longer; and the easier corrosion leakage that causes pipe arrangement between this down period, and this leakage is fatal often, therefore general producer all is reluctant to take chances and adopts aluminum pipe or other existing multiple tube to substitute copper pipe.To present patent application, this remains a difficult problem in air-conditioning and refrigerator field.
The utility model content
Technical problem to be solved in the utility model just is to overcome the deficiency of above-mentioned prior art, and a kind of corrosion resistance height, slip is low, cost is low air-conditioning and refrigerator pipe arrangement are provided.
According to air-conditioning and the refrigerator pipe arrangement that the utility model provides, it is composited by a bronze medal or copper alloy layer and an aluminum or aluminum alloy layer at least.
A kind of air-conditioning and the refrigerator pipe arrangement that provide according to the utility model also have following attached technical characterictic:
The thickness of described copper or copper alloy layer is 1: 1～40 with the thickness ratio of described aluminum or aluminum alloy layer.
Middle one deck of described pipe arrangement is the aluminum or aluminum alloy layer, respectively is compounded with layer of copper or copper alloy layer on the inside and outside surface of described aluminum or aluminum alloy layer.
The internal layer of described pipe arrangement is copper or copper alloy layer, is compounded with layer of aluminum or aluminium alloy layer at the outer surface of described copper or copper alloy layer, and the outer surface at described aluminum or aluminum alloy layer is coated with an anticorrosive coat again.
The internal layer of described pipe arrangement is the aluminum or aluminum alloy layer, is compounded with layer of copper or copper alloy layer at the outer surface of described aluminum or aluminum alloy layer, and the inner surface at described aluminum or aluminum alloy layer is coated with an anticorrosive coat again.
One deck is arranged by described copper or copper alloy layer and described aluminum or aluminum alloy layer counterdiffusion and the complex metal layer that forms mutually between adjacent described copper or copper alloy layer and the described aluminum or aluminum alloy layer.
Described copper alloy is: brass, bronze or copper-nickel alloy.Described aluminium alloy is: 1XXX～6XXX series alloys.
The outermost layer of pipe arrangement also is provided with a heat-insulation layer, and its two ends are equipped with joint.
Described pipe arrangement is the vertical bar pipe, and mosquito-repellent incense coil pipe or layer are around pipe.
A kind of air-conditioning and the refrigerator pipe arrangement that provide according to the utility model compared with prior art have following advantage:
At first, the utility model is owing to adopt the composite pipe structure of copper or copper alloy and aluminum or aluminum alloy, guaranteed the distinctive corrosion resistance of copper or copper alloy, on weight, the proportion of aluminium only be copper proportion 30%, saved a large amount of copper or copper alloy like this, guaranteed to greatly reduce production cost under the situation about requiring;
Secondly, pipe arrangement of the present utility model by two-layer or three layers be composited, and two-layer or three-decker is difficult in the same local defective that produces, and therefore, compares with full copper or copper alloy tube and full aluminum or aluminum alloy pipe, slip can be lower, use safer, the life-span is longer;
Once more, be formed with the complex metal layer that diffuses to form mutually after the junction process metallurgy of copper or copper alloy layer and aluminium and aluminium alloy layer and the machining, thereby make pipe arrangement of the present utility model have good mechanical performance, add man-hour through bend pipe, expander etc., copper or copper alloy layer and aluminum or aluminum alloy layer can not produce defectives such as delamination, wrinkle.
Description of drawings
Fig. 1 is the schematic cross-section of the utility model three-layer composite structure.
Fig. 2 is that the utility model internal layer is copper or copper alloy, outerly is the two layer composite structure schematic cross-section of aluminum or aluminum alloy.
Fig. 3 is that the utility model internal layer is aluminum or aluminum alloy layer, outer two layer composite structure schematic cross-section for copper or copper alloy layer.
Fig. 4 is the schematic cross-section that the utility model is provided with heat insulation layer structure.
The specific embodiment
Referring to Fig. 1, according to a kind of preferred embodiment that the utility model provides, be to be composited by two layers of copper layer 1 and one deck aluminium lamination 2, be aluminium lamination 2 in the middle of it, respectively be compounded with layer of copper layer 1 on described aluminium lamination 2 inside and outside surfaces.The complex metal layer 4 that has one deck to diffuse to form mutually between outer described copper layer 1 and the described aluminium lamination 2 by described copper layer 1 and described aluminium lamination 2.The complex metal layer 4 that also has one deck to diffuse to form mutually between the described copper layer 1 of described aluminium lamination 2 and internal layer by described copper layer 1 and described aluminium lamination 2.Described complex metal layer 4 is diffuseed to form through stress metal processing mutually by the junction of copper layer and aluminium lamination.The utlity model has mechanical performance preferably thereby make.The gross thickness of two-layer copper layer 1 is 1: 3.3 with the ratio of the thickness of described aluminium lamination 2.
Referring to Fig. 2, according to another embodiment that the utility model provides, it is to be composited by layer of copper layer 1 and one deck aluminium lamination 2, and its internal layer is a copper layer 1, is compounded with one deck aluminium lamination 2 at described copper layer 1 outer surface, is coated with an anticorrosive coat 3 at described aluminium lamination 2 outer surfaces again.Described copper layer 1 is 1: 8 with the thickness proportion of described aluminium lamination 2.The complex metal layer 4 that has one deck to diffuse to form mutually between described copper layer 1 and the described aluminium lamination 2 by described copper layer 1 and described aluminium lamination 2.Because the corrosion resistance of aluminium lamination 2 is poor, therefore,, improve the corrosion resistance of aluminium lamination 2 at outer surface coating one deck anticorrosive coat 3 of aluminium lamination 2.
Referring to Fig. 3, according to another embodiment that the utility model provides, it is to be composited by layer of copper layer 1 and one deck aluminium lamination 2, and its internal layer is an aluminium lamination 2, is compounded with layer of copper layer 1 at described aluminium lamination 2 outer surfaces, is coated with an anticorrosive coat 3 at described aluminium lamination 2 inner surfaces again.Described copper layer 1 is 1: 8 with the thickness proportion of described aluminium lamination 2.Compound (metallurgy) metal level 4 that has one deck to diffuse to form mutually between described copper layer 1 and the described aluminium lamination 2 by described copper layer 1 and described aluminium lamination 2.Because the corrosion resistance of aluminium lamination 2 is poor, therefore, in inner surface coating one deck anticorrosive coat 3 of aluminium lamination 2, the anticorrosive effect that improves aluminium lamination 2.
In above-mentioned each embodiment, described copper layer 1 and described aluminium lamination 2 also can adopt copper alloy layer and aluminium alloy layer.Therefore, the utility model also can be copper layer and aluminium alloy layer, or aluminium lamination and copper alloy layer, or aluminium alloy layer and copper alloy layer are composited.Described copper alloy is: brass, bronze or copper-nickel alloy, described aluminium alloy is: 1XXX～6XXX series alloys.
Referring to Fig. 4, among a kind of embodiment that provides according to the utility model, outermost layer of the present utility model also is provided with a heat-insulation layer 5, and its two ends are equipped with joint.This pipe arrangement can also be made the vertical bar pipe, and mosquito-repellent incense coil pipe or layer are around pipe
As follows according to the pipe arrangement that the utility model provides with respect to the cost contrast of the full copper pipe of prior art:
| Specification | Material | Length (rice) | Weight (g) | Material cost (unit) | |
| The utility model | Φ12.7×0.75 | 50％Cu+50％Al | 3 | 490 | 13.47 |
| Full copper pipe | Φ12.7×0.75 | 100％Cu | 3 | 751 | 28.54 |
In December, 2005, the present price of copper was 38000 yuan/ton, and aluminium only is 17000 yuan/ton.Copper proportion is about 8.9, and the proportion of aluminium is 2.7.The cost of the pipe arrangement that constitutes with the aluminium of half weight copper and half weight only is 47% of a full copper pipe cost.If be made into air conditioner connecting pipe, primary Calculation can make every air-conditioner reduce by 10 yuan cost, and this is a very large numeral to the household electrical appliances producer that produces in enormous quantities.
Above embodiment only is for ease of understanding the utility model, is not to be to restriction of the present utility model, and any variation that does not break away from the utility model claim all belongs to the content of the utility model protection.
Claims (9)
1, a kind of air-conditioning and refrigerator pipe arrangement is characterized in that: be composited by a bronze medal or copper alloy layer (1) and an aluminum or aluminum alloy layer (2) at least.
2, a kind of air-conditioning as claimed in claim 1 and refrigerator pipe arrangement is characterized in that: the thickness ratio of the thickness of described copper or copper alloy layer (1) and described aluminum or aluminum alloy layer (2) is 1: 1～40.
3, a kind of air-conditioning as claimed in claim 2 and refrigerator pipe arrangement is characterized in that: middle one deck is aluminum or aluminum alloy layer (2), respectively is compounded with layer of copper or copper alloy layer (1) on the inside and outside surface of described aluminum or aluminum alloy layer (2).
4, a kind of air-conditioning as claimed in claim 2 and refrigerator pipe arrangement, it is characterized in that: internal layer is copper or copper alloy layer (1), outer surface at described copper or copper alloy layer (1) is compounded with layer of aluminum or aluminium alloy layer (2), and the outer surface at described aluminum or aluminum alloy layer (2) is coated with an anticorrosive coat (3) again.
5, a kind of air-conditioning as claimed in claim 2 and refrigerator pipe arrangement, it is characterized in that: internal layer is aluminum or aluminum alloy layer (2), outer surface at described aluminum or aluminum alloy layer (2) is compounded with layer of copper or copper alloy layer (1), and the inner surface at described aluminum or aluminum alloy layer (2) is coated with an anticorrosive coat (3) again.
6, as arbitrary described a kind of air-conditioning of claim 1 to 5 and refrigerator pipe arrangement, it is characterized in that: one deck is arranged between adjacent described copper or copper alloy layer (1) and the described aluminum or aluminum alloy layer (2) by described copper or copper alloy layer (1) and described aluminum or aluminum alloy layer (2) counterdiffusion and the complex metal layer (4) that forms mutually.
7, as arbitrary described a kind of air-conditioning of claim 1 to 5 and refrigerator pipe arrangement, it is characterized in that: described copper alloy is: brass, bronze or copper-nickel alloy, described aluminium alloy is: 1XXX～6XXX series alloys.
8, as arbitrary described a kind of air-conditioning of claim 1 to 5 and refrigerator pipe arrangement, it is characterized in that: the outermost layer of described pipe arrangement also is provided with a heat-insulation layer (5), and its two ends are equipped with joint.
9, as arbitrary described a kind of air-conditioning of claim 1 to 5 and refrigerator pipe arrangement, it is characterized in that: described pipe arrangement is that vertical bar pipe, mosquito-repellent incense coil pipe or layer are around pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520147152 CN2864454Y (en) | 2005-12-29 | 2005-12-29 | Pipe arrangement for air conditioner and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520147152 CN2864454Y (en) | 2005-12-29 | 2005-12-29 | Pipe arrangement for air conditioner and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2864454Y true CN2864454Y (en) | 2007-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520147152 Expired - Fee Related CN2864454Y (en) | 2005-12-29 | 2005-12-29 | Pipe arrangement for air conditioner and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2864454Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372621C (en) * | 2006-04-24 | 2008-03-05 | 江苏兴荣高新科技股份有限公司 | Method for manufacturing copper aluminium composite tubing and copper aluminium tubing produced thereby |
| CN102418813A (en) * | 2010-09-28 | 2012-04-18 | 江苏兴荣高新科技股份有限公司 | Novel copper-aluminum composite pipe |
| CN103878202A (en) * | 2014-03-20 | 2014-06-25 | 北京科技大学 | Method for preparing copper/aluminum bimetallic capillary |
| CN103878201A (en) * | 2014-03-20 | 2014-06-25 | 北京科技大学 | Preparation method of high-performance copper/aluminum duplex metal capillary |
| CN107152879A (en) * | 2017-05-25 | 2017-09-12 | 合肥皖化电泵有限公司 | BCP pump heat exchanger high efficiency and heat radiation conduits |
-
2005
- 2005-12-29 CN CN 200520147152 patent/CN2864454Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372621C (en) * | 2006-04-24 | 2008-03-05 | 江苏兴荣高新科技股份有限公司 | Method for manufacturing copper aluminium composite tubing and copper aluminium tubing produced thereby |
| CN102418813A (en) * | 2010-09-28 | 2012-04-18 | 江苏兴荣高新科技股份有限公司 | Novel copper-aluminum composite pipe |
| CN102418813B (en) * | 2010-09-28 | 2013-08-21 | 江苏兴荣高新科技股份有限公司 | Novel copper-aluminum composite pipe |
| CN103878202A (en) * | 2014-03-20 | 2014-06-25 | 北京科技大学 | Method for preparing copper/aluminum bimetallic capillary |
| CN103878201A (en) * | 2014-03-20 | 2014-06-25 | 北京科技大学 | Preparation method of high-performance copper/aluminum duplex metal capillary |
| CN103878201B (en) * | 2014-03-20 | 2016-06-08 | 北京科技大学 | The preparation method of a kind of high-performance copper/Al bimetal kapillary |
| CN103878202B (en) * | 2014-03-20 | 2016-08-31 | 北京科技大学 | A kind of preparation method of copper/Al bimetal capillary tube |
| CN107152879A (en) * | 2017-05-25 | 2017-09-12 | 合肥皖化电泵有限公司 | BCP pump heat exchanger high efficiency and heat radiation conduits |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XINGRONG HI-TECH CO LTD, JIANGSU Free format text: FORMER OWNER: HITECH (CHINA) CO., LTD. Effective date: 20071130 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071130 Address after: No. 8 Xingye Road, Changzhou New District, Jiangsu, Changzhou Province, China: 213022 Patentee after: Xingrong Hi-Tech Co., Ltd., Jiangsu Address before: Room 904, wing up Arts crafts emporium, 54-58 Onomichi, Kowloon Tong, Hongkong: Patentee before: Gaoxin (China) Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070131 Termination date: 20131229 |