CN204942808U - Coating copper-aluminium welding pipe - Google Patents
Coating copper-aluminium welding pipe Download PDFInfo
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- CN204942808U CN204942808U CN201520572800.0U CN201520572800U CN204942808U CN 204942808 U CN204942808 U CN 204942808U CN 201520572800 U CN201520572800 U CN 201520572800U CN 204942808 U CN204942808 U CN 204942808U
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Abstract
The utility model discloses coating copper-aluminium welding pipe, comprise copper aluminium welding tube body, the corrosion-resistant coating that described copper aluminium welding tube body comprises copper pipe, aluminum pipe and is coated on outside described aluminum pipe, described Al pipe butt welding is in copper pipe one end, enlarging is provided with at the described copper pipe the other end, described enlarging is connected by arc transition with copper pipe, and described enlarging entirety is horn-like; Inner insulation layer, described inner insulation layer is coated on outside described copper aluminium welding tube body; Outside insulation layer, described outside insulation layer is coated on outside described inner insulation layer; Outer protective layer, described outer protective layer is coated on outside described outside insulation layer, is provided with printed layer at described outer protective layer outer surface; Nut, described nut is arranged on enlarging place, and the internal diameter of described nut is less than the external diameter of enlarging.The utility model is reasonable in design, structure is simple, effectively can prevent cut, also there will not be wrinkle phenomenon at bending part, makes the width of sealing surface be greater than 5mm, fundamentally solves generation and the long service life of leakage phenomenon.
Description
Technical field
The utility model relates to welded pipe technical field, is related specifically to a kind of coating copper-aluminium welding pipe for air-conditioning.
Background technique
In prior art, coating copper-aluminium welding pipe major part for air-conditioning comprises copper aluminium welding tube body and is coated on the insulation layer outside copper aluminium welding tube body, described copper aluminium welding tube body comprises copper pipe and aluminum pipe, described Al pipe butt welding is in copper pipe one end, owing to being only coated with the insulation layer of individual layer outside copper aluminium welding tube body, thus make the disconnected thermal effect of coating welded pipe entirety poor, and be smooth surface outside insulation layer,, very easily there is wrinkle phenomenon at bending part in easy cut; Another, when copper pipe and Al pipe butt welding, adopt energy storage welding or friction welding usually, adopts above two kinds of welding manners, make the width of sealing surface be less than 5mm, and then easily occur leakage phenomenon, thus bring larger inconvenience to user.
But for the deficiencies in the prior art, developer is necessary that development one is reasonable in design, structure simple, effectively can prevent cut, also wrinkle phenomenon is there will not be at bending part, make the width of sealing surface be greater than 5mm, fundamentally solve the generation of leakage phenomenon and the coating copper-aluminium welding pipe of long service life.
Model utility content
For solving prior art Problems existing, the utility model object provide a kind of reasonable in design, structure simple, effectively can prevent cut, also wrinkle phenomenon is there will not be at bending part, make the width of sealing surface be greater than 5mm, fundamentally solve the generation of leakage phenomenon and the coating copper-aluminium welding pipe of long service life.
For solving above technical problem, the utility model comes to be realize by the following technical solutions:
Coating copper-aluminium welding pipe, comprises
Copper aluminium welding tube body, the corrosion-resistant coating that described copper aluminium welding tube body comprises copper pipe, aluminum pipe and is coated on outside described aluminum pipe, described Al pipe butt welding is in copper pipe one end, the dead in line of described aluminum pipe and copper pipe, enlarging is provided with at the described copper pipe the other end, described enlarging is connected by arc transition with copper pipe, and described enlarging entirety is horn-like;
Inner insulation layer, described inner insulation layer is coated on outside described copper aluminium welding tube body;
Outside insulation layer, described outside insulation layer is coated on outside described inner insulation layer;
Outer protective layer, described outer protective layer is coated on outside described outside insulation layer, is provided with printed layer at described outer protective layer outer surface;
Nut, described nut is arranged on enlarging place, and the internal diameter of described nut is less than the external diameter of enlarging.
In a preferred embodiment of the present utility model, described outer protective layer selects PE material to make.
In a preferred embodiment of the present utility model, be provided with uv-resistant layer at described printed layer outer surface.
In a preferred embodiment of the present utility model, the thickness of described aluminum pipe is 1.5 times of copper pipe.
In a preferred embodiment of the present utility model, the welding manner between described copper pipe and aluminum pipe is that plug-in type copper aluminum pipe resistance pressure-welding connects.
In a preferred embodiment of the present utility model, the angle between described enlarging and copper pipe axis is 45 °.
In a preferred embodiment of the present utility model, the radius of arc scope between described enlarging and copper pipe is 0.4-0.8mm.
Compared with prior art, the utility model is coated with inner insulation layer outside copper aluminium welding tube body, and outside inner insulation layer, be also coated with outside insulation layer, inner insulation layer and the effective structure of outside insulation layer, the disconnected thermal effect of this coating copper-aluminium welding pipe entirety can be improved, and be coated with outer protective layer outside outside insulation layer, outer protective layer is provided with printed layer, effectively can prevent cut, also there will not be wrinkle phenomenon at bending part; Another, plug-in type copper aluminum pipe resistance pressure-welding is adopted to connect between copper pipe and aluminum pipe, inapplicable solder resist in welding process, splash is not had to produce in welding process, meet the requirement of refrigeration product cleanliness, the sealing surface broader than energy storage welding, friction welding can be obtained, Cu-AL pipe is produced the face of weld that the fused sector width of welding is greater than 5mm, fundamentally solves the generation of leakage phenomenon.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B place enlarged view of Fig. 1.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
Shown in Fig. 1-Fig. 3, the coating copper-aluminium welding pipe provided in figure, comprises copper aluminium welding tube body, inner insulation layer 200, outside insulation layer 300, outer protective layer 400 and nut 800.
The corrosion-resistant coating 500 that copper aluminium welding tube body comprises copper pipe 110, aluminum pipe 120 and is coated on outside aluminum pipe 120, the thickness of aluminum pipe 120 is 1.5 times of copper pipe 110, corrosion-resistant coating 500 can effectively prevent aluminum pipe 120 to be corroded, aluminum pipe 120 adopt plug-in type copper aluminum pipe resistance pressure-welding to connect right-hand member that mode is welded on copper pipe 110, the dead in line of aluminum pipe 120 and copper pipe 110, the sealing surface broader than energy storage welding, friction welding can be obtained, Cu-AL pipe is produced the face of weld that the fused sector width of welding is greater than 5mm, fundamentally solves the generation of leakage phenomenon.
Enlarging 900 is provided with at the left end of copper pipe, the surface of enlarging 900 is the mirror process of slip, effectively can avoid the situation of leaking gas, enlarging 900 is connected by circular arc 1000 transition with copper pipe 110, circular arc 1000 radius between enlarging 900 and copper pipe 110 is 0.4-0.8mm, enlarging 900 entirety is horn-like, angle C between enlarging 900 and copper pipe 110 axis is 45 °, this coating copper-aluminium welding pipe is provided with enlarging 900, need not on-the-spot process, greatly reduce the engineering time, in narrow place, construction is also very convenient.
Inner insulation layer 200 is coated on outside copper aluminium welding tube body, outside insulation layer 300 is coated on outside inner insulation layer 200, inner insulation layer 200 and outside insulation layer 300 all adopt polyethylene foamed material to make, heat can be made to pass to rate at below 0.043W/m.K, can make cold-hot temperature between-40-120 DEG C, tensile strength is 14N/cm
2above, vacuum dehydration rate is at 2.0g/100cm
2below.
Outer protective layer 400 is coated on outside outside insulation layer 300, outer protective layer 400 selects PE material to make, printed layer 600 is provided with at outer protective layer 400 outer surface, effectively can prevent cut, also wrinkle phenomenon is there will not be at bending part, be provided with uv-resistant layer 700 at printed layer 600 outer surface, the uv-resistant performance of this coating copper-aluminium welding pipe can be improved.
Nut 800 adopts anti-cracking conducting forging processing, further increases the mechanical strength of nut 800, and nut 800 is arranged on enlarging 900 place, and the internal diameter of nut 800 is less than the external diameter of enlarging 900, can save the preparation of construction time.
The utility model is coated with inner insulation layer outside copper aluminium welding tube body in sum, and outside inner insulation layer, be also coated with outside insulation layer, inner insulation layer and the effective structure of outside insulation layer, the disconnected thermal effect of this coating copper-aluminium welding pipe entirety can be improved, and outside outside insulation layer, be coated with outer protective layer, outer protective layer is provided with printed layer, effectively can prevents cut, also there will not be wrinkle phenomenon at bending part; Another, plug-in type copper aluminum pipe resistance pressure-welding is adopted to connect between copper pipe and aluminum pipe, inapplicable solder resist in welding process, splash is not had to produce in welding process, meet the requirement of refrigeration product cleanliness, the sealing surface broader than energy storage welding, friction welding can be obtained, Cu-AL pipe is produced the face of weld that the fused sector width of welding is greater than 5mm, fundamentally solves the generation of leakage phenomenon.
More than show and describe basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. coating copper-aluminium welding pipe, is characterized in that, comprise
Copper aluminium welding tube body, the corrosion-resistant coating that described copper aluminium welding tube body comprises copper pipe, aluminum pipe and is coated on outside described aluminum pipe, described Al pipe butt welding is in copper pipe one end, the dead in line of described aluminum pipe and copper pipe, enlarging is provided with at the described copper pipe the other end, described enlarging is connected by arc transition with copper pipe, and described enlarging entirety is horn-like;
Inner insulation layer, described inner insulation layer is coated on outside described copper aluminium welding tube body;
Outside insulation layer, described outside insulation layer is coated on outside described inner insulation layer;
Outer protective layer, described outer protective layer is coated on outside described outside insulation layer, is provided with printed layer at described outer protective layer outer surface;
Nut, described nut is arranged on enlarging place, and the internal diameter of described nut is less than the external diameter of enlarging.
2. coating copper-aluminium welding pipe as claimed in claim 1, is characterized in that: described outer protective layer selects PE material to make.
3. coating copper-aluminium welding pipe as claimed in claim 1, is characterized in that: be provided with uv-resistant layer at described printed layer outer surface.
4. coating copper-aluminium welding pipe as claimed in claim 1, is characterized in that: the thickness of described aluminum pipe is 1.5 times of copper pipe.
5. coating copper-aluminium welding pipe as claimed in claim 1, is characterized in that: the angle between described enlarging and copper pipe axis is 45 °.
6. the coating copper-aluminium welding pipe as described in claim 1 or 5, is characterized in that: the radius of arc scope between described enlarging and copper pipe is 0.4-0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520572800.0U CN204942808U (en) | 2015-07-31 | 2015-07-31 | Coating copper-aluminium welding pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520572800.0U CN204942808U (en) | 2015-07-31 | 2015-07-31 | Coating copper-aluminium welding pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204942808U true CN204942808U (en) | 2016-01-06 |
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ID=55010237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520572800.0U Active CN204942808U (en) | 2015-07-31 | 2015-07-31 | Coating copper-aluminium welding pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204942808U (en) |
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2015
- 2015-07-31 CN CN201520572800.0U patent/CN204942808U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190321 Address after: 241000 No. 18 Sanhua Mountain Road, Gao'an Street, Yangtze River Bridge Comprehensive Economic Development Zone, Wuhu City, Anhui Province Patentee after: Wuhu Dajin New Material Technology Co., Ltd. Address before: 201201 Shanghai Pudong New Area Shangfeng Road 700 8 Building 101 Room A7 Patentee before: Shanghai Dajin Heating Ventilation Equipment Co., Ltd. |