CN212029938U - Air return heat exchange tube, refrigerating system and refrigerator - Google Patents
Air return heat exchange tube, refrigerating system and refrigerator Download PDFInfo
- Publication number
- CN212029938U CN212029938U CN202020660963.5U CN202020660963U CN212029938U CN 212029938 U CN212029938 U CN 212029938U CN 202020660963 U CN202020660963 U CN 202020660963U CN 212029938 U CN212029938 U CN 212029938U
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- Prior art keywords
- air
- tube
- capillary
- heat exchange
- muffler
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- 238000000576 coating method Methods 0.000 claims abstract description 28
- 238000005260 corrosion Methods 0.000 claims abstract description 27
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 238000005057 refrigeration Methods 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 36
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 36
- 239000011888 foil Substances 0.000 claims description 30
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 7
- 238000003487 electrochemical reaction Methods 0.000 abstract description 5
- 210000001503 joint Anatomy 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 7
- 239000007769 metal material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 4
- 238000007598 dipping method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000006056 electrooxidation reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005536 corrosion prevention Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses an air-return heat exchange tube, a refrigeration system and a refrigerator, wherein the air-return heat exchange tube comprises an air return tube, a capillary tube and a connecting structure, and the outer peripheral wall of the air return tube is provided with an anti-corrosion coating; the capillary tube and the air return pipe are arranged in parallel; the connecting structure connects the muffler and the capillary tube so that the muffler and the capillary tube are kept in abutment. In the utility model, the connecting structure ensures the continuous butt joint of the air return pipe and the capillary pipe, and realizes the effective heat exchange of the air return pipe and the capillary pipe; through set up the anticorrosion coating in the periphery side of muffler, neither influence the heat transfer effect between muffler and the capillary, can also effectively prevent to produce the problem that electrochemical reaction or outside contain the corruption impurity moisture direct contact between muffler and the capillary caused muffler corrosion damage, have simple structure and the lower advantage of cost.
Description
Technical Field
The utility model relates to a refrigeration plant technical field, concretely relates to return air heat exchange tube, refrigerating system and refrigerator.
Background
In the existing refrigeration system applied to the refrigerator, an air return pipe is generally arranged between an evaporator and a compressor, and a capillary tube is connected with a condenser. The refrigerating capacity can be improved by heat exchange between the air return pipe and the capillary tube. The existing air return pipe and the capillary tube are generally made of metal materials, when the air return pipe is abutted to the capillary tube for heat exchange, electrochemical corrosion damage is easily generated between the air return pipe and the capillary tube, the service life of the air return pipe and the capillary tube is influenced, and the heat exchange effect of the air return pipe and the capillary tube is influenced; in addition, the moisture containing corrosive impurities outside directly contacts the muffler, which is also easy to cause the muffler to be corroded and damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air return heat exchange tube, refrigerating system and refrigerator, it leads to the fact the problem of muffler corrosion damage to aim at producing electrochemical reaction or outside containing the direct contact of corrosive impurities moisture between muffler and the capillary in the solution conventional art.
In order to achieve the above object, the utility model provides an air return heat exchange tube, include:
the outer peripheral wall of the air return pipe is provided with an anti-corrosion coating;
a capillary tube arranged in parallel with the air return pipe; and the number of the first and second groups,
a connecting structure connecting the muffler and the capillary tube so that the muffler and the capillary tube are held in abutment.
In one embodiment, the connecting structure includes a sleeve portion that is fitted around the peripheries of the air return pipe and the capillary tube.
In an embodiment, the socket is at least one of an aluminum foil and a heat shrinkable tube.
In one embodiment, the sleeve part comprises an aluminum foil and a heat-shrinkable tube sleeved outside the aluminum foil;
the air return pipe and the capillary are wrapped by the aluminum foil.
In one embodiment, the air-return heat exchange tube further comprises a heat conducting structure;
the heat conduction structure is sleeved on one side, back to the air return pipe, of the anti-corrosion coating and is limited in the sleeving part.
In an embodiment, the heat conducting structure comprises an aluminum foil.
In one embodiment, the muffler is made of a first metal, and the capillary is made of a second metal.
In one embodiment, the first metal is aluminum or iron; and/or the presence of a gas in the gas,
the second metal is copper.
Furthermore, in order to achieve the above object, the utility model also provides a refrigerating system, refrigerating system includes the return air heat exchange tube, the return air heat exchange tube includes:
the outer peripheral wall of the air return pipe is provided with an anti-corrosion coating;
a capillary tube arranged in parallel with the air return pipe; and the number of the first and second groups,
a connecting structure connecting the muffler and the capillary tube so that the muffler and the capillary tube are held in abutment.
Furthermore, in order to achieve the above object, the utility model also provides a refrigerator, the refrigerator includes the return air heat exchange tube, the return air heat exchange tube includes:
the outer peripheral wall of the air return pipe is provided with an anti-corrosion coating;
a capillary tube arranged in parallel with the air return pipe; and the number of the first and second groups,
a connecting structure connecting the muffler and the capillary tube so that the muffler and the capillary tube are held in abutment.
In the technical scheme provided by the utility model, the connecting structure ensures the continuous butt joint of the air return pipe and the capillary pipe, and realizes the effective heat exchange of the air return pipe and the capillary pipe; through set up the anticorrosion coating in the periphery side of muffler, neither influence the heat transfer effect between muffler and the capillary, can also effectively prevent to produce the problem that electrochemical reaction or outside contain the corruption impurity moisture direct contact between muffler and the capillary caused muffler corrosion damage, have simple structure and the lower advantage of cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a first embodiment of an air-return heat exchange tube provided by the present invention;
fig. 2 is a schematic cross-sectional view of a second embodiment of the air-return heat exchange tube provided by the present invention;
fig. 3 is a schematic cross-sectional view of a third embodiment of the air-return heat exchange tube provided by the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Air-return |
3 | |
| 1 | |
31 | Aluminum foil |
| 11 | Corrosion- |
32 | Heat- |
| 2 | |
4 | Heat conduction structure |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
In the existing refrigeration system applied to the refrigerator, an air return pipe is generally arranged between an evaporator and a compressor, and a capillary tube is connected with a condenser. The refrigerating capacity can be improved by heat exchange between the air return pipe and the capillary tube. The existing air return pipe and the capillary tube are generally made of metal materials, when the air return pipe is abutted to the capillary tube for heat exchange, electrochemical corrosion damage is easily generated between the air return pipe and the capillary tube, the service life of the air return pipe and the capillary tube is influenced, and the heat exchange effect of the air return pipe and the capillary tube is influenced; in addition, the moisture containing corrosive impurities outside directly contacts the muffler, which is also easy to cause the muffler to be corroded and damaged.
In view of this, the present invention provides a refrigerator, which comprises a refrigeration system, wherein the refrigeration system comprises a return air heat exchange tube, and the main inventive point of the present invention lies in the improvement of the return air heat exchange tube, please refer to the specific embodiment of the return air heat exchange tube shown in fig. 1 to 3, and the following description mainly describes the return air heat exchange tube 100 with reference to the specific drawings.
Referring to fig. 1, the air-return heat exchange tube 100 of the present invention includes an air-return tube 1, a capillary tube 2 and a connecting structure 3, wherein an anti-corrosion coating 11 is disposed on an outer peripheral wall of the air-return tube 1; the capillary tube 2 and the air return tube 1 are arranged in parallel; the connection structure 3 connects the muffler 1 and the capillary tube 2 so that the muffler 1 and the capillary tube 2 are held in abutment.
In the technical scheme provided by the utility model, the connecting structure 3 ensures the continuous butt joint of the air return pipe 1 and the capillary pipe 2, and realizes the effective heat exchange between the air return pipe and the capillary pipe; through set up anticorrosive coating 11 at the periphery side of muffler 1, neither influence the heat transfer effect between muffler 1 and capillary 2, can also effectively prevent to produce the problem that electrochemical reaction or outside contain corrosive impurity moisture direct contact caused muffler corrosion damage between muffler 1 and capillary 2, have simple structure and the lower advantage of cost.
It can be understood that, the refrigeration system of the refrigerator generally further includes an evaporator and a compressor, the air return pipe 1 generally refers to a pipeline section from an outlet of the evaporator to an inlet of the compressor, the air return pipe 1 is easily exposed to air in practical application, and on one hand, because the air contains water vapor, the water vapor itself can corrode the wall surface of the air return pipe 1 and damage the wall surface because the water vapor contains acid, alkali or salt; on the other hand, muffler 1 and capillary 2 need keep the butt to in heat transfer, produce electrochemical reaction easily under the influence of steam between the metal material of muffler 1 and the metal material of capillary 2, reaction process consumes muffler 1 or capillary 2, influences the life of return air heat exchange tube 100. Based on this, set up anti-corrosion coating 11 through the periphery wall at muffler 1, can effectively reduce or eliminate steam corrosion and electrochemical corrosion to muffler 1 and capillary 2's damage, and do not influence the butt heat transfer between muffler 1 and the capillary 2.
It should be noted that the specific material of the anti-corrosion coating 11 is not limited in the present design, and can be adjusted according to the specific application of the return air heat exchange tube 100 with reference to the prior art. In a specific embodiment, before the setting of the anti-corrosion coating 11 is performed on the peripheral wall of the muffler 1, the peripheral wall of the muffler 1 needs to be cleaned, so that impurities, sharp protrusions and the like on the peripheral wall of the muffler 1 are effectively removed, and the coating effect of the anti-corrosion coating 11 on the peripheral wall of the muffler 1 is optimized. The process of coating the anti-corrosion coating 11 on the outer circumferential wall of the muffler 1 may be various, for example, the process technologies such as plastic dipping, paint dipping, powder spraying and the like may be adopted, and the process technologies such as plastic dipping, paint dipping, powder spraying and the like are respectively suitable for the anti-corrosion coatings 11 of different materials and different properties, and in specific application, the anti-corrosion coatings may be reasonably selected by referring to the prior art. Of course, in the above embodiment, the coating thickness of the corrosion prevention coating 11 needs to be set within a reasonable range, and it cannot be too thick to increase material consumption and affect the heat exchange effect, nor too thin to reduce the corrosion prevention effect.
In the above embodiment, the muffler 1 is made of the first metal, and the capillary 2 is made of the second metal. Based on the metal material all possesses good heat conduction characteristic, the material of making through setting up muffler 1 and capillary 2 is the metal, can ensure the heat transfer effect between muffler 1 and capillary 2. It can be understood that, no matter the specific material of the first metal and the second metal, as long as the metal surface of the muffler 1 is coated with the corrosion-resistant coating 11, the muffler 1 and the capillary tube 2 can be protected from corrosion in the process of heat exchange by keeping the muffler 1 and the capillary tube 2 in contact, so as to reduce the loss of the muffler 1 and the capillary tube 2.
Certainly, in this embodiment, first metal can be selected to aluminium or iron, and aluminium product or iron material compare the copper product in traditional technology, work as behind muffler 1 is aluminium system muffler or the muffler made of iron, can guarantee sufficient heat conductivility, help reducing the holistic economic cost of return air heat exchange tube 100 again, need not to be restricted to and connect muffler 1 and capillary 2 through the soldering moreover, have more the practicality. In this embodiment, the second metal is copper. That is, capillary 2 is copper capillary, and capillary 2's pipe diameter is generally thinner than muffler 1, and heat radiating area is limited, consequently, has the consideration of more excellent heat conductivility based on the copper product, sets up capillary 2 and is copper capillary, can optimize the heat transfer effect between muffler 1 and capillary 2.
In view of the above, the specific technical solutions of the connecting structure 3 are different when the materials of the muffler 1 and the capillary tube 2 are different, for example, when the muffler 1 is a copper muffler or a copper-plated muffler and the capillary tube 2 is a copper capillary tube, the muffler 1 and the capillary tube 2 can be welded by soldering or brazing, but this method is expensive. Because the first metal is aluminium or iron, and the second metal is copper, therefore in this embodiment, connection structure 3 includes the cover and establishes the cup joint portion in muffler 1 and capillary 2's periphery. Muffler 1 and capillary 2 set up along its length direction and form a combination, and the cover is established in the periphery of combination to the realization is connected muffler 1 and capillary 2, makes inseparable butt between the two, realizes the heat transfer. It should be noted that the sleeve joint part is sleeved on the peripheries of the air return pipe 1 and the capillary 2, and gaps between the inner wall of the sleeve joint part and the outer wall of the air return pipe 1 and between the inner wall of the sleeve joint part and the outer wall of the capillary 2 need to be reduced as much as possible to prevent water from being retained in the gaps.
There are various technical solutions of the socket joint part for realizing the above functions, and specifically, the socket joint part may be at least one of the aluminum foil 31 and the heat shrinkable tube 32.
Referring to fig. 1, in the first embodiment of the present invention, the aluminum foil 31 is sleeved on the periphery of the air return pipe 1 and the capillary tube 2, the aluminum foil 31 is in a sheet shape and can wrap the periphery of the air return pipe 1 and the capillary tube 2, which not only can realize the connection between the air return pipe 1 and the capillary tube 2, but also the aluminum foil 31 itself has good heat conductivity, has the advantage of low cost, and is helpful for enhancing the heat circulation between the air return pipe 1 and the capillary tube 2.
Referring to fig. 2, in the second embodiment of the present invention, the sleeve portion is a heat shrinkable tube 32 sleeved around the circumference of the air return tube 1 and the capillary tube 2, the heat shrinkable tube 32 is more easily sleeved around the circumference of the air return tube 1 and the capillary tube 2, and can be shrunk and deformed after being heated to achieve tight wrapping, thereby effectively reducing the gap between the heat shrinkable tube 32 and the air return tube 1 and the capillary tube 2; in addition, the main body of the heat shrinkable tube 32 has a certain elastic deformation capability, so that the wall surfaces of the muffler 1 and the capillary tube 2 can be effectively protected to be complete.
Of course, the socket may be the aluminum foil 31 and the heat shrinkable tube 32, and the advantages of the aluminum foil 31 and the heat shrinkable tube 32 are both obtained.
Referring to fig. 3, in the third embodiment of the present invention, when the sheathing part includes an aluminum foil 31 and a heat shrinkable tube 32, the heat shrinkable tube 32 is sheathed around the aluminum foil 31; the muffler 1 and the capillary tube 2 are wrapped with an aluminum foil 31. Similarly to the above, the aluminum foil 31 wraps the peripheries of the air return pipe 1 and the capillary tube 2, so that the first connection between the air return pipe 1 and the capillary tube 2 is realized, and the heat conduction contact area between the air return pipe 1 and the capillary tube 2 is increased, so that the heat exchange effect between the air return pipe 1 and the capillary tube 2 is enhanced; the heat-shrinkable tube 32 wraps the periphery of the aluminum foil 31, the second connection between the air return pipe 1 and the capillary tube 2 is realized, the heat-shrinkable tube 32 contributes to enhancing the connection strength between the air return pipe 1 and the capillary tube 2 through heat shrinkage, the aluminum foil 31 can be effectively protected by the heat-shrinkable tube 32, and the aluminum foil 31 is prevented from being scratched.
Next, referring to fig. 3, the air-return heat exchange tube 100 further includes a heat conducting structure 4; the heat conducting structure 4 is sleeved on one side of the corrosion-resistant coating 11 back to the air return pipe 1 and limited in the sleeving part. After the periphery of muffler 1 is coated with anti-corrosion coating 11, certain influence can be generated on the thermal cycle between muffler 1 and capillary 2, and heat conduction structure 4 is arranged on one side of anti-corrosion coating 11 back to muffler 1, so that the heat dissipation area between muffler 1 and capillary 2 can be enlarged, and the heat exchange effect can be optimized.
Specifically, in the above-described embodiment, the heat conductive structure 4 includes an aluminum foil (for distinction, the aluminum foil hereinafter referred to as the heat conductive structure 4 is a heat conductive aluminum foil). The heat conduction aluminum foil can directly adopt the aluminum foil 31 in the sleeve part, so that the heat exchange effect is enhanced, the cost is reduced, and the complexity of the manufacturing process is simplified. Moreover, the heat-conducting aluminum foil is thin, and is wrapped on one side of the anti-corrosion coating 11, which is opposite to the air return pipe 1, so that the influence on the size and the quality of the whole air return heat exchange pipe 100 is small.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. An air-return heat exchange tube, comprising:
the outer peripheral wall of the air return pipe is provided with an anti-corrosion coating;
a capillary tube arranged in parallel with the air return pipe; and the number of the first and second groups,
a connecting structure connecting the muffler and the capillary tube so that the muffler and the capillary tube are held in abutment.
2. The air-return heat exchange tube of claim 1, wherein the connecting structure comprises a socket portion that is fitted around the peripheries of the air-return tube and the capillary tube.
3. The air return heat exchange tube of claim 2, wherein the socket is at least one of aluminum foil and heat shrink tube.
4. The air-return heat exchange tube of claim 2, wherein the socket comprises an aluminum foil and a heat-shrinkable tube sheathed outside the aluminum foil;
the air return pipe and the capillary are wrapped by the aluminum foil.
5. An air-return heat exchange tube according to any one of claims 2 to 4, further comprising a heat conducting structure;
the heat conduction structure is sleeved on one side, back to the air return pipe, of the anti-corrosion coating and is limited in the sleeving part.
6. The air return heat exchange tube of claim 5, wherein the thermally conductive structure comprises aluminum foil.
7. The air-return heat exchange tube of claim 1, wherein the air-return tube is made of a first metal and the capillary tube is made of a second metal.
8. The air-return heat exchange tube of claim 7, wherein the first metal is aluminum or iron; and/or the presence of a gas in the gas,
the second metal is copper.
9. A refrigeration system comprising a return air heat exchange tube as claimed in any one of claims 1 to 8.
10. A refrigerator comprising the air-return heat exchange tube as recited in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020660963.5U CN212029938U (en) | 2020-04-26 | 2020-04-26 | Air return heat exchange tube, refrigerating system and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020660963.5U CN212029938U (en) | 2020-04-26 | 2020-04-26 | Air return heat exchange tube, refrigerating system and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212029938U true CN212029938U (en) | 2020-11-27 |
Family
ID=73495876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020660963.5U Expired - Fee Related CN212029938U (en) | 2020-04-26 | 2020-04-26 | Air return heat exchange tube, refrigerating system and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212029938U (en) |
-
2020
- 2020-04-26 CN CN202020660963.5U patent/CN212029938U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |