CN204665757U - A kind of braze welding type evaporator for refrigerator - Google Patents
A kind of braze welding type evaporator for refrigerator Download PDFInfo
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- CN204665757U CN204665757U CN201520181913.8U CN201520181913U CN204665757U CN 204665757 U CN204665757 U CN 204665757U CN 201520181913 U CN201520181913 U CN 201520181913U CN 204665757 U CN204665757 U CN 204665757U
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- evaporation
- bending pipe
- metal bending
- metallic plate
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Abstract
The utility model relates to a kind of braze welding type evaporator for refrigerator, comprises metallic plate, evaporation of metal bending pipe, and described metallic plate and evaporation of metal bending pipe are by brazing, and described evaporation of metal bending pipe cross section is D shape, or evaporation of metal bending pipe is flat tube.The utility model significantly can increase the heat transfer efficiency between tube sheet, and simple for assembly process between tube sheet.
Description
Technical field
The utility model relates to a kind of evaporator of refrigerator, is specifically related to a kind of braze welding type evaporator for refrigerator.
Background technology
Evaporator for refrigerator is a kind of heat-exchange apparatus.Existing evaporator of refrigerator, evaporation and heat-exchange as cold-producing medium freezes, mainly contain blown plate type, tube-sheet type, threaded pipe type, finned, tube-sheet type etc., tube-sheet type is wherein made up of the coiled heat exchanger tube on heat exchanger plates and heat-transfer surface, and the assembling mode between pipe and plate has the modes such as the bonding of riveted, adhesive tape, PUR fusion.The assembling mode of riveted, in conjunction with firm, but the contact of managing between plate is tight, and thermal contact resistance power is large; The assembling mode of adhesive tape and PUR bonding, technique for sticking is complicated, and easily come unglued, because the thermal resistance of glue is larger than metal, heat transfer efficiency is low.
Utility model content
The utility model is large for thermal resistance between existing tube-plate evaporative organ pipe and plate, and processing technology is complicated, provides a kind of heat transfer efficiency that can significantly increase between tube sheet, and braze welding type evaporator for refrigerator simple for assembly process between tube sheet.
In order to achieve the above object, the utility model has following technical scheme:
A kind of braze welding type evaporator for refrigerator of the present utility model, comprise metallic plate, evaporation of metal bending pipe, described metallic plate and evaporation of metal bending pipe pass through brazing, described evaporation of metal bending pipe cross section is D shape, or evaporation of metal bending pipe is flat tube, described metallic plate, evaporation of metal bending pipe are provided with organic coating.
Wherein, described metallic plate is aluminium zinc composite plate, and described evaporation of metal bending pipe is aluminum evaporation bending pipe, and described metallic plate, evaporation of metal bending pipe are provided with organic coating.
Wherein, described metallic plate is aluminium sheet, and described evaporation of metal bending pipe is aluminium zinc composite evaporation bending pipe.
Compared with prior art, the beneficial effects of the utility model are: the utility model makes to adopt brazing mode assembly and connection between metallic plate and evaporation of metal bending pipe, because welding makes the contact area of evaporation of metal bending pipe and metallic plate reach maximum, in conjunction with firm, and the resistance of metal mutual sweating heat reaches minimum, substantially increases the heat exchanger effectiveness of tube-in-sheet evaporator.
Accompanying drawing explanation
Fig. 1 is braze welding type tube sheet evaporimeter schematic diagram.
In figure, 1. evaporation of metal bending pipe; 2. metallic plate; 3. aluminium zinc composite plate zinc face.
Detailed description of the invention
Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
See Fig. 1, a kind of braze welding type evaporator for refrigerator of the present utility model, comprise metallic plate, evaporation of metal bending pipe, described metallic plate and evaporation of metal bending pipe pass through brazing, described evaporation of metal bending pipe cross section is D shape, or evaporation of metal bending pipe is flat tube, described metallic plate, evaporation of metal bending pipe are provided with organic coating.
Described metallic plate is aluminium zinc composite plate, and described evaporation of metal bending pipe is aluminum evaporation bending pipe, and described metallic plate, evaporation of metal bending pipe are provided with organic coating.
Or described metallic plate is aluminium sheet, described evaporation of metal bending pipe is aluminium zinc composite evaporation bending pipe.
The manufacture method of a kind of braze welding type evaporator for refrigerator of the present utility model, has following embodiment:
Embodiment 1:
1), brazing flux prepares:
Brazing flux adopts potassium fluoroaluminate salt mixture, is made up of the KALF4 of 76% and the K2ALF5H2O of 24%;
2), workpiece degreasing:
Be that the aluminum evaporation bending pipe of D shape is placed in degreasing agent solution respectively by aluminium zinc composite plate and cross section, temperature 50-60 DEG C, ultrasonic degreasing 10 minutes, cleans three times with pure water, dries or dries up;
3), workpiece spray soldering flux:
The zinc face 3 one side spraying step 1 of aluminium zinc composite plate by cleaning up) described in soldering flux, spray liquid temperature is 5 DEG C;
4), workpiece is dry:
By dry for the aluminium zinc composite plate of spraying soldering flux, baking temperature is 180 DEG C, 15 minutes time;
5), soldering:
By cross section be the aluminum evaporation bending pipe of D shape by the side of drawing sizing in the zinc face 3 of the above-mentioned aluminium zinc composite plate handled well, put into braze chamber, braze chamber fills N2, and purity is greater than 99.995%, control temperature at 580-590 DEG C, temperature retention time 15 minutes;
6), workpiece is come out of the stove:
Workpiece after soldering is down to room temperature by air cooling room, completes soldering;
7), Workpiece painting:
Workpiece after soldering, behind cleaning surface, is sprayed with organic coating, is finished product after dry solidification.
Embodiment 2:
1), brazing flux prepares:
Brazing flux adopts potassium fluoroaluminate salt mixture, is made up of the KALF4 of 76% and the K2ALF5H2O of 24%;
2), workpiece degreasing:
Aluminium sheet and evaporation bending flat tube are suspended on degreasing line respectively, in spray degreasing agent, skimming temp 50-60 DEG C, 20 minutes time.With pure water cleaning spray, time 2-3 minute, workpiece enters drying tunnel and dries;
3), workpiece spray soldering flux:
The one side spraying step 1 of aluminium sheet by cleaning up) described in soldering flux, spray liquid temperature is 20 DEG C;
4), dry:
By dry for the aluminium sheet spraying soldering flux, baking temperature is 160 DEG C, 25 minutes time;
5), soldering:
By evaporation bending flat tube by the side of drawing sizing at the above-mentioned aluminium sheet handled well, put into braze chamber, braze chamber vacuumizes, purity 1 × 10-3Pa, control temperature 590-600 DEG C, temperature retention time 10 minutes;
6), workpiece is come out of the stove:
Workpiece after soldering is down to room temperature by cooling chamber, completes soldering;
7), Workpiece painting:
Workpiece after soldering, after cleaning out the solder flux on surface, spraying organic protection layer, is finished product after dry solidification.
Embodiment 3:
1), brazing flux prepares:
Brazing flux adopts potassium fluoroaluminate salt mixture, is made up of the KALF4 of 76% and the K2ALF5H2O of 24%;
2), workpiece degreasing:
Be that the aluminum evaporation bending pipe of D shape is placed in degreasing agent solution respectively by aluminium zinc composite plate and cross section, temperature 50-60 DEG C, ultrasonic degreasing 10 minutes, cleans three times with pure water, dries or dries up;
3), workpiece spray soldering flux:
The zinc face 3 one side spraying step 1 of aluminium zinc composite plate by cleaning up) described in soldering flux, spray liquid temperature is 40 DEG C;
4), workpiece is dry:
By dry for the aluminium zinc composite plate of spraying soldering flux, baking temperature is 150 DEG C, 15 minutes time;
5), soldering:
By cross section be the aluminum evaporation bending pipe of D shape by the side of drawing sizing in the zinc face of the above-mentioned aluminium zinc composite plate handled well, put into braze chamber, braze chamber fills N2, and purity is greater than 99.995%, control temperature at 580-590 DEG C, temperature retention time 12 minutes;
6), workpiece is come out of the stove:
Workpiece after soldering is down to room temperature by air cooling room, completes soldering;
7), Workpiece painting:
Workpiece after soldering, behind cleaning surface, is sprayed with organic coating, is finished product after dry solidification.
Embodiment 4:
1), brazing flux prepares:
Brazing flux adopts potassium fluoroaluminate salt mixture, is made up of the KALF4 of 76% and the K2ALF5H2O of 24%;
2), workpiece degreasing:
Aluminium sheet and evaporation bending flat tube are suspended on degreasing line respectively, in spray degreasing agent, skimming temp 50-60 DEG C, 20 minutes time.With pure water cleaning spray, time 2-3 minute, workpiece enters drying tunnel and dries;
3), workpiece spray soldering flux:
The one side spraying step 1 of aluminium sheet by cleaning up) described in soldering flux, spray liquid temperature is 20 DEG C;
4), dry:
By dry for the aluminium sheet spraying soldering flux, baking temperature is 160 DEG C, 25 minutes time;
5), soldering:
By evaporation bending flat tube by the side of drawing sizing at the above-mentioned aluminium sheet handled well, put into braze chamber, braze chamber vacuumizes, purity 1 × 10-3Pa, control temperature 590-600 DEG C, temperature retention time 14 minutes;
6), workpiece is come out of the stove:
Workpiece after soldering is down to room temperature by cooling chamber, completes soldering;
7), Workpiece painting:
Workpiece after soldering, after cleaning out the solder flux on surface, spraying organic protection layer, is finished product after dry solidification.
The utility model above-described embodiment makes the employing brazing mode assembly and connection between aluminum pipe and aluminum evaporation plate, because welding makes the contact area of pipe and plate reach maximum, in conjunction with firm, and the resistance of metal mutual sweating heat reaches minimum, substantially increases the heat exchanger effectiveness of plate pipe evaporator.
As mentioned above, just the utility model can be realized comparatively fully.The foregoing is only comparatively reasonably embodiment of the present utility model; protection domain of the present utility model includes but are not limited to: this, and any the including based on unsubstantiality sex change change in technical solutions of the utility model of those skilled in the art comprises within scope at the utility model.
Claims (3)
1. a braze welding type evaporator for refrigerator, comprises metallic plate, evaporation of metal bending pipe, it is characterized in that: described metallic plate and evaporation of metal bending pipe are by brazing, and described evaporation of metal bending pipe cross section is D shape, or evaporation of metal bending pipe is flat tube.
2. a kind of braze welding type evaporator for refrigerator according to claim 1, it is characterized in that described metallic plate is aluminium zinc composite plate, described evaporation of metal bending pipe is aluminum evaporation bending pipe, and described metallic plate, evaporation of metal bending pipe are provided with organic coating.
3. a kind of braze welding type evaporator for refrigerator according to claim 1, is characterized in that described metallic plate is aluminium sheet, and described evaporation of metal bending pipe is aluminium zinc composite evaporation bending pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520181913.8U CN204665757U (en) | 2015-03-27 | 2015-03-27 | A kind of braze welding type evaporator for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520181913.8U CN204665757U (en) | 2015-03-27 | 2015-03-27 | A kind of braze welding type evaporator for refrigerator |
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| Publication Number | Publication Date |
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| CN204665757U true CN204665757U (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520181913.8U Active CN204665757U (en) | 2015-03-27 | 2015-03-27 | A kind of braze welding type evaporator for refrigerator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016849A (en) * | 2016-07-15 | 2016-10-12 | 合肥美菱股份有限公司 | Tube plate welding type refrigeration evaporator |
| CN106152617A (en) * | 2015-03-27 | 2016-11-23 | 河南新科隆电器有限公司 | A kind of soldering formula evaporator for refrigerator and manufacture method thereof |
-
2015
- 2015-03-27 CN CN201520181913.8U patent/CN204665757U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152617A (en) * | 2015-03-27 | 2016-11-23 | 河南新科隆电器有限公司 | A kind of soldering formula evaporator for refrigerator and manufacture method thereof |
| CN106016849A (en) * | 2016-07-15 | 2016-10-12 | 合肥美菱股份有限公司 | Tube plate welding type refrigeration evaporator |
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| GR01 | Patent grant |