CN204494912U - A kind of header assembling unit structure - Google Patents
A kind of header assembling unit structure Download PDFInfo
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- CN204494912U CN204494912U CN201520088568.3U CN201520088568U CN204494912U CN 204494912 U CN204494912 U CN 204494912U CN 201520088568 U CN201520088568 U CN 201520088568U CN 204494912 U CN204494912 U CN 204494912U
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- steel pipe
- outlet
- inlet tube
- aluminium seat
- header
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Abstract
The utility model discloses a kind of header assembling unit structure, comprise header, inlet tube and outlet, header is provided with inlet tube aluminium seat and outlet aluminium seat, inlet tube aluminium seat and outlet aluminium seat are provided with through hole, through hole is communicated with header, also comprise the first steel pipe and the second steel pipe, inlet tube stiff end is communicated with one end of the first steel pipe, outlet stiff end is communicated with one end of the second steel pipe, the other end of the first steel pipe and the second steel pipe to insert respectively in the through hole of inlet tube aluminium seat and outlet aluminium seat and is welded and fixed with inlet tube aluminium seat and outlet aluminium seat, inlet tube aluminium seat and outlet aluminium seat are riveted fixing respectively with header.This header assembling unit structure is connected firmly, and yield rate is high, and intensity is high, good reliability.
Description
Technical field:
The utility model relates to a kind of header, is specifically a kind of header assembling unit structure.
Background technology:
Micro-channel heat exchanger, as the part of air-conditioning system, needs to connect to form the closed circulatory system by pipeline fitting.Existing micro-channel heat exchanger designs for all-aluminium construction, and copper pipe is the main material of system pipeline part, and therefore, the inlet tube of micro-channel heat exchanger and outlet interface need adopt welding of copper and aluminium.Physics, the chemical property of copper and aluminium are widely different, welding difficulty is very big, the plug-in resistance type welding manner comparatively extensively adopted at present welds with aluminum pipe copper pipe, and adopt the crosslinked polyethylene heat-shrink tube such as (or cross-linked polyolefin material), be wrapped on aluminum pipe by thermal shrinkage method, improve the resistance to corrosion of Cu-Al connecting pipe.
This syndeton Problems existing: 1, heat exchanger is connected by aluminum pipe seat with inlet tube, outlet, connected mode is argon arc welding or tension force clamping, and production efficiency is low, and leakage rate is higher; 2, copper aluminium welding bears pressure capability, decay resistance, reliability three aspect deficiencies.During copper aluminium welding, technological parameter is improper, shortage of heat, end face processing cleaning is unclean, causes local fusing bad; Layer is excessively thin, has slight crack, all can cause leaking.On faying face, easily brittle layer is produced during welding, under the high temperature conditions, also along with expansion and life can be prolonged with temperature rising and the prolongation brittle layer of high temperature action time, all can have an impact to copper aluminium junction when copper pipe End gas brazing and the welding of aluminum pipe end, cause high temperature failure; The applying working condition of air-conditioning, electrochemical corrosion is also the big factors affecting copper aluminium welding service life.
Utility model content:
Technical problem to be solved in the utility model is, provide a kind of and be connected firmly and can not affect the header assembling unit structure of use, this header assembling unit structure yield rate is high, and intensity is high, good reliability, and the leakage of cold-producing medium not easily occurs.
Technical solution of the present utility model is, a kind of header assembling unit structure is provided, comprise header, inlet tube and outlet, header is provided with inlet tube aluminium seat and outlet aluminium seat, inlet tube aluminium seat and outlet aluminium seat are provided with through hole, through hole is communicated with header, also comprise the first steel pipe and the second steel pipe, inlet tube stiff end is communicated with one end of the first steel pipe, outlet stiff end is communicated with one end of the second steel pipe, the other end of the first steel pipe and the second steel pipe to insert respectively in the through hole of inlet tube aluminium seat and outlet aluminium seat and is welded and fixed with inlet tube aluminium seat and outlet aluminium seat, inlet tube aluminium seat and outlet aluminium seat are riveted fixing respectively with header.
To adopt after above structure compared with prior art, the utility model has the following advantages: carry out with steel pipe the novel inlet/outlet pipe connected mode that transition connects copper and aluminium and replace copper aluminium welding tube connector, riveting method is utilized to realize the fixing of inlet/outlet pipe assembly and header, utilize stainless steel and brazing to connect can to obtain more reliable than copper aluminium welding, more high strength, the heat exchanger tube connector of better corrosion resistance, make the scope of application of micro-channel heat exchanger wider, reliability is higher, meets the heat exchanger requirement of some specific operation environment.In addition, carry out alternative original being welded and fixed with riveted joint, can yield rate be improved, reduce the connection that rosin joint and solder skip cause insecure, avoid welding in some cases and bring header out into the open and cause the situation of leakage to occur.
As preferably, the through hole of described inlet tube aluminium seat and outlet aluminium seat is shoulder hole, is provided with aluminium weld-ring in shoulder hole, and the first steel pipe and the second steel pipe are welded and fixed respectively by aluminium weld-ring and inlet tube aluminium seat, outlet aluminium seat.
As preferably, one end of inlet tube stiff end and the first steel pipe is welded and fixed by aluminium weld-ring, and one end of outlet stiff end and the second steel pipe is welded and fixed by aluminium weld-ring.
Further, the first steel pipe and the second steel pipe are stainless steel tube.Stainless steel tube has good corrosion resistance.
Accompanying drawing illustrates:
Accompanying drawing is structural representation of the present utility model.
Detailed description of the invention:
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
As shown in the figure, a kind of header assembling unit structure, comprise header 1, inlet tube 2 and outlet 3, header 1 is provided with tool inlet tube aluminium at regular intervals seat 4 and outlet aluminium seat 5 by specification requirement, inlet tube aluminium seat 4 and outlet aluminium seat 5 are provided with through hole, header 1 is provided with the port coordinated with it, through hole is communicated with header 1, this modular construction also comprises the first steel pipe 6 and the second steel pipe 7, first steel pipe 6 and the second steel pipe 7 preferably stainless steel tube, in the present embodiment, stainless steel tube adopts model to be 304 stainless steel tubes, inlet tube stiff end is communicated with one end of the first steel pipe 6, outlet stiff end is communicated with one end of the second steel pipe 7, and be welded and fixed at the link of inlet tube stiff end and the first steel pipe 6, the preferred HFI welding of welding manner, equally, the link of outlet stiff end and the second steel pipe 7 also adopts HFI welding to fix.The other end of the first steel pipe 6 and the second steel pipe 7 inserts in the through hole of inlet tube aluminium seat 4 and outlet aluminium seat 5 respectively, specifically, through hole is shoulder hole, aluminium weld-ring 9 is provided with in shoulder hole, the welding ends of the first steel pipe 6 is pressed into inlet tube aluminium seat 4 by press and abuts with aluminium weld-ring 9, the welding ends of the second steel pipe 7 is pressed into outlet aluminium seat 5 by press and abuts with aluminium weld-ring, then inlet tube aluminium seat 4 and outlet aluminium seat 5 are riveted by rivet 8 with header 1 respectively and be fixed together, finally put into soldering furnace brazing, first steel pipe 6 is welded together with inlet tube aluminium seat 4, second steel pipe 7 welds together with outlet aluminium seat 5.
This assembly work flow is the steel pipe HFI welding by the inlet tube of copper material and outlet and 304 stainless steels, stainless steel tube i.e. the first steel pipe after welding and the second steel pipe are inserted in inlet tube aluminium seat and outlet aluminium seat respectively, and put into aluminium weld-ring, with press, stainless steel tube is pressed in inlet tube aluminium seat and outlet aluminium seat, then inlet tube aluminium seat and outlet aluminium seat is riveted on header respectively by rivet.Slice weldering is together entered, without the need to adopting Cu-Al connecting pipe or copper aluminium welding after being assembled into micro-channel core.Reliability, corrosion resistance, intensity promote greatly, and are all plant equipment control operation in whole production process, without the need to relying on artificial experience and qualification, greatly improve product percent of pass and production efficiency.
Below be only described with regard to the utility model preferred embodiment, but can not be interpreted as it is limitations on claims.Every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion, include within scope of patent protection of the present utility model.
Claims (4)
1. a header assembling unit structure, comprise header, inlet tube and outlet, header is provided with inlet tube aluminium seat and outlet aluminium seat, inlet tube aluminium seat and outlet aluminium seat are provided with through hole, through hole is communicated with header, it is characterized in that: also comprise the first steel pipe and the second steel pipe, inlet tube stiff end is communicated with one end of the first steel pipe, outlet stiff end is communicated with one end of the second steel pipe, the other end of the first steel pipe and the second steel pipe to insert respectively in the through hole of inlet tube aluminium seat and outlet aluminium seat and is welded and fixed with inlet tube aluminium seat and outlet aluminium seat, inlet tube aluminium seat and outlet aluminium seat are riveted fixing respectively with header.
2. header assembling unit structure according to claim 1, it is characterized in that: the through hole of described inlet tube aluminium seat and outlet aluminium seat is shoulder hole, be provided with aluminium weld-ring in shoulder hole, the first steel pipe and the second steel pipe are welded and fixed respectively by aluminium weld-ring and inlet tube aluminium seat, outlet aluminium seat.
3. header assembling unit structure according to claim 1, is characterized in that: one end of inlet tube stiff end and the first steel pipe is welded and fixed by aluminium weld-ring, and one end of outlet stiff end and the second steel pipe is welded and fixed by aluminium weld-ring.
4. header assembling unit structure according to claim 1, is characterized in that: the first steel pipe and the second steel pipe are stainless steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520088568.3U CN204494912U (en) | 2015-02-09 | 2015-02-09 | A kind of header assembling unit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520088568.3U CN204494912U (en) | 2015-02-09 | 2015-02-09 | A kind of header assembling unit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204494912U true CN204494912U (en) | 2015-07-22 |
Family
ID=53574222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520088568.3U Active CN204494912U (en) | 2015-02-09 | 2015-02-09 | A kind of header assembling unit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204494912U (en) |
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2015
- 2015-02-09 CN CN201520088568.3U patent/CN204494912U/en active Active
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