CN211400918U - Heat exchange structure, falling film heat exchanger and air conditioner - Google Patents
Heat exchange structure, falling film heat exchanger and air conditioner Download PDFInfo
- Publication number
- CN211400918U CN211400918U CN201922205043.4U CN201922205043U CN211400918U CN 211400918 U CN211400918 U CN 211400918U CN 201922205043 U CN201922205043 U CN 201922205043U CN 211400918 U CN211400918 U CN 211400918U
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- heat exchange
- heat
- heat transfer
- wing
- falling film
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- 239000011552 falling film Substances 0.000 title claims description 20
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 abstract description 9
- NOQGZXFMHARMLW-UHFFFAOYSA-N Daminozide Chemical group CN(C)NC(=O)CCC(O)=O NOQGZXFMHARMLW-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 8
- 238000001704 evaporation Methods 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 239000011551 heat transfer agent Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a heat transfer structure, falling liquid film heat exchanger and air conditioner. This heat transfer structure includes the heat transfer base member, be equipped with heat transfer piece on the first side of heat transfer base member, heat transfer piece includes: one end of the root part is arranged on the first side surface, and the other end of the root part extends towards the direction far away from the heat exchange base body; at least two wing parts are arranged, one end of each wing part is arranged on the root part, and the other end of each wing part extends in the direction far away from the root part; all the wing portions are arranged along the extending direction of the root portion. The adoption sets up two at least alar parts on the root, has increased heat transfer area, and a plurality of cavity structures that constitute simultaneously, the refrigerant boils the heat transfer in a plurality of cavities, improves heat transfer performance.
Description
Technical Field
The utility model belongs to the technical field of falling liquid film heat exchanger, concretely relates to heat transfer structure, falling liquid film heat exchanger and air conditioner.
Background
Different from the traditional flooded evaporator, the falling film type heat exchanger adopts a structural form that the refrigerant goes up and out to achieve the effect of evaporating the refrigerant. The liquid refrigerant entering the falling film heat exchanger is uniformly distributed on the heat exchange tubes after passing through the liquid homogenizing device, and a liquid film is formed on the surfaces of the heat exchange tubes, so that the effect of evaporating the refrigerant is achieved, and the energy efficiency of the falling film heat exchanger is greatly dependent on the heat exchange performance of the heat exchange tubes. For the falling film type evaporation tube, the heat exchange effect has a great relationship with the surface tooth form.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model is to provide a heat transfer structure, falling liquid film heat exchanger and air conditioner can promote the heat transfer efficiency.
In order to solve the problem, the utility model provides a heat transfer structure, including the heat transfer base member, be equipped with the heat transfer piece on the first side of heat transfer base member, the heat transfer piece includes:
one end of the root part is arranged on the first side surface, and the other end of the root part extends towards the direction far away from the heat exchange base body;
at least two wing parts are arranged, one end of each wing part is arranged on the root part, and the other end of each wing part extends in the direction far away from the root part; all the wing portions are arranged along the extending direction of the root portion.
Preferably, the side of the wing furthest from the first side is provided with a liquid distributor for evenly distributing liquid flowing through the side.
Preferably, the liquid distributor comprises one or a combination of a rectangular protrusion, a star-shaped protrusion and a cross-shaped groove.
Preferably, the widths of the adjacent wing parts are not equal, and the width of the wing part relatively far away from the heat exchange base body is larger.
According to another aspect of the present invention, there is provided a falling film heat exchanger, comprising the heat exchange structure as described above.
Preferably, the heat exchange matrix comprises heat exchange tubes of the falling film heat exchanger, and the heat exchange pieces are arranged on the outer walls of the heat exchange tubes; the heat exchange pieces are arranged in a plurality and are uniformly distributed along the axial direction and/or the circumferential direction of the heat exchange tube.
Preferably, when the heat exchange tube is circumferentially provided with a plurality of heat exchange pieces, the number of the heat exchange pieces arranged on each inch of length is 25-80.
Preferably, the distance H between the farthest end of the heat exchange piece and the outer wall of the heat exchange tube is 0.3-0.8 mm; and/or the width W of the heat exchange piece is 0.4H-1H; and/or the two wing parts have the same thickness, and the thickness D is 0.2H-0.6H; and/or the layer heights H of the two wing parts are the same and are 0.3H-0.7H.
Preferably, the outer wall of the heat exchange tube is provided with a groove extending along the axial direction, and the groove is arranged between the adjacent heat exchange pieces.
According to another aspect of the present invention, there is provided an air conditioner including the heat exchange structure as described above or the falling film heat exchanger as described above.
The utility model provides a pair of heat transfer structure, including the heat transfer base member, be equipped with the heat transfer piece on the first side of heat transfer base member, the heat transfer piece includes: one end of the root part is arranged on the first side surface, and the other end of the root part extends towards the direction far away from the heat exchange base body; at least two wing parts are arranged, one end of each wing part is arranged on the root part, and the other end of each wing part extends in the direction far away from the root part; all the wing portions are arranged along the extending direction of the root portion. The adoption sets up two at least alar parts on the root, has increased heat transfer area, and a plurality of cavity structures that constitute simultaneously, the refrigerant boils the heat transfer in a plurality of cavities, improves heat transfer performance.
Drawings
Fig. 1 is a schematic three-dimensional structure diagram of the surface of a heat exchange tube according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a heat exchange tube according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of a heat exchange tube according to an embodiment of the present invention;
fig. 4 is a third schematic structural diagram of a heat exchange tube according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a fourth structure of a heat exchange tube according to an embodiment of the present invention.
The reference numerals are represented as:
1. a heat exchange pipe; 11. a groove; 2. a heat exchange member; 21. a root portion; 22. a first wing portion; 23. a second wing portion; 24. a liquid distributor.
Detailed Description
With reference to fig. 1 to 5, according to an embodiment of the present invention, a heat exchange structure includes a heat exchange base body, a heat exchange member 2 is disposed on a first side of the heat exchange base body, and the heat exchange member 2 includes:
a root 21 having one end disposed on the first side surface and the other end extending away from the heat exchange base;
at least two wing parts are arranged, one end of each wing part is arranged on the root part 21, and the other end of each wing part extends in the direction far away from the root part 21; all the wing portions are arranged along the extending direction of the root portion 21.
Through set up heat transfer member 2 on the first side at the heat transfer base member, can improve heat transfer area, heat transfer member 2 adopts two at least alar parts to set up on same root 21 in this scheme especially for heat transfer area further increases, and the extension direction of this alar part is different from the extending direction of root 21 simultaneously, thereby root 21, first side and a plurality of alar parts can form a plurality of semi-open cavities, and the heat transfer agent can boil the heat transfer in a plurality of cavities during the use, has improved heat transfer performance.
Specifically, the wing part is provided with two: a first wing part 22 and a second wing part 23, one end of the second wing part 23 is arranged on the other end of the root part 21, and a liquid distributor 24 is arranged on one side of the second wing part 23 far away from the first side surface for uniformly distributing the liquid flowing through the side surface.
Set up knockout 24 on second wing 23 side, like arch or recess 11 structure, when heat transfer agent flows through knockout 24, under arch or recess 11's effect, the heat transfer agent can be scattered the flow all around on this side, is favorable to preventing that the heat transfer agent from piling up, and the equal liquid effect of reinforcing reduces the emergence of the dry combustion condition.
Specifically, the liquid distributor 24 includes one or a combination of rectangular protrusions, star-shaped protrusions and cross grooves 11, and the heat transfer agent flowing through the side surfaces can be uniformly distributed.
For the first and second wings 22 and 23 described above, the widths are not equal, and the width of the second wing 23 away from the heat exchange substrate is larger. The width refers to the orthographic projection length of the wing part on the first side surface; the first wing part 22 and the second wing part 23 are fixed on the root part 21 at one end in a parallel arrangement mode, so that the residence time of boiling heat exchange in the two chambers is longer, and a better heat exchange effect is achieved.
Preferably, the first wing part 22 and the second wing part 23 are provided on the same side of the root part 21, facilitating manufacturing and assembly. A wing portion of the same structure may be provided on the other side of the root portion 21.
According to the embodiment of the utility model provides a falling liquid film heat exchanger, include as above heat transfer structure.
The heat exchange matrix comprises a heat exchange tube 1 of the falling film heat exchanger, and the heat exchange piece 2 is arranged on the outer wall of the heat exchange tube 1; the heat exchange pieces 2 are provided in plurality and are uniformly distributed along the axial direction and/or the circumferential direction of the heat exchange tube 1.
The plurality of heat exchange pieces 2 are arranged on the outer wall of the heat exchange tube 1, so that the heat exchange area of the heat exchange tube 1 can be increased, and the heat exchange effect is improved.
When being equipped with a plurality of heat transfer pieces 2 on the circumference of heat exchange tube 1, the quantity that sets up heat transfer piece 2 on per inch length is 25 ~ 80, and two adjacent heat transfer piece 2's distance is a. The distance H between the farthest end of the heat exchange piece 2 and the outer wall of the heat exchange tube 1 is 0.3-0.8 mm; and/or the width W of the heat exchange piece 2 is 0.4H-1H; and/or the two wing parts have the same thickness, and the thickness D is 0.2H-0.6H; and/or the layer heights H of the two wing parts are the same and are 0.3H-0.7H.
The outer wall of the heat exchange tube 1 is provided with the grooves 11 extending along the axial direction, the grooves 11 are formed between the adjacent heat exchange pieces 2, so that the heat exchange area can be increased, meanwhile, one part of the heat exchange agent flowing through the surface of the heat exchange tube 1 flows to the other row of heat exchange tubes 1 along the circumferential direction, the other part of the heat exchange agent can flow along the axial direction, and the heat exchange of the heat exchange agent on the surface of the heat exchange tube 1 and fluid in the tube can be fully carried out.
As for the arrangement shape of the groove 11, it may be a V-groove, a serpentine groove or the like.
According to the falling film heat exchanger, the heat exchange pieces 2 with specific structures are arranged on the outer surfaces of the heat exchange tubes 1, so that the number of heat exchange cavities between every two adjacent heat exchange pieces 2 is increased, and the heat exchange effect is enhanced. The material can be copper according to the requirements of economy and heat exchange performance.
An F-shaped heat exchange piece 2 structure is processed on the outer surface of a heat exchange tube 1 of the falling film heat exchanger, a semi-closed double-layer evaporation cavity is formed between adjacent heat exchange pieces 2, and a refrigerant boils in the evaporation cavity for heat exchange; the bottom of the heat exchange piece 2 is provided with a circumferential groove 11 along the surface of the heat exchange tube 1, so that a refrigerant can be guided to flow on the surface of the heat exchange tube 1, and the number of vaporization cores can be increased; the structure of the heat exchange piece 2 top processing bulge or groove 11 is more beneficial to liquid homogenization and ensures that the refrigerant is uniformly distributed on the outer wall surface of the pipe.
According to another embodiment of the present invention, an air conditioner includes the heat exchange structure or the falling film heat exchanger as described above.
It is easily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a heat exchange structure, its characterized in that includes the heat transfer base member, be equipped with heat exchange member (2) on the first side of heat transfer base member, heat exchange member (2) include:
a root (21) having one end disposed on the first side surface and the other end extending away from the heat exchange base;
at least two wing parts are arranged, one end of each wing part is arranged on the root part, and the other end of each wing part extends in the direction far away from the root part (21); all the wing portions are arranged in the direction in which the root portion (21) extends.
2. A heat exchange structure according to claim 1, characterised in that the side of the fins furthest from the first side is provided with liquid distributors (24), which liquid distributors (24) are adapted to evenly distribute liquid flowing through the side.
3. A heat exchange structure according to claim 2, characterized in that the liquid distributors (24) comprise one or a combination of rectangular bulges, star-shaped bulges and cross-shaped grooves (11).
4. The heat exchange structure of claim 1 or 2, wherein the widths of the adjacent fins are not equal, and the width of the fin relatively far away from the heat exchange base is larger.
5. A falling film heat exchanger, comprising the heat exchange structure of any one of claims 1 to 4.
6. The falling film heat exchanger according to claim 5, wherein the heat exchange matrix comprises a heat exchange tube (1) of the falling film heat exchanger, and the heat exchange element (2) is arranged on the outer wall of the heat exchange tube (1); the heat exchange pieces (2) are arranged in a plurality and are uniformly distributed along the axial direction and/or the circumferential direction of the heat exchange tube (1).
7. The falling film heat exchanger according to claim 6, wherein when a plurality of the heat exchanging elements (2) are provided in the circumferential direction of the heat exchanging tube (1), the number of the heat exchanging elements (2) provided per inch of length is 25 to 80.
8. The falling film heat exchanger according to claim 6 or 7, wherein the distance H between the farthest end of the heat exchange element (2) and the outer wall of the heat exchange tube (1) is 0.3-0.8 mm; and/or the width W of the heat exchange piece (2) is 0.4H-1H; and/or the two wing parts have the same thickness, and the thickness D is 0.2H-0.6H; and/or the layer heights H of the two wing parts are the same and are 0.3H-0.7H.
9. The falling film heat exchanger according to claim 6 or 7, wherein the heat exchange tubes (1) are provided with axially extending grooves (11) in the outer wall, the grooves (11) being provided between adjacent heat exchange elements (2).
10. An air conditioner comprising the heat exchange structure of any one of claims 1 to 4 or the falling film heat exchanger of any one of claims 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922205043.4U CN211400918U (en) | 2019-12-10 | 2019-12-10 | Heat exchange structure, falling film heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922205043.4U CN211400918U (en) | 2019-12-10 | 2019-12-10 | Heat exchange structure, falling film heat exchanger and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211400918U true CN211400918U (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922205043.4U Active CN211400918U (en) | 2019-12-10 | 2019-12-10 | Heat exchange structure, falling film heat exchanger and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211400918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944975A (en) * | 2019-12-10 | 2021-06-11 | 珠海格力电器股份有限公司 | Heat exchange structure, falling film heat exchanger and air conditioner |
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2019
- 2019-12-10 CN CN201922205043.4U patent/CN211400918U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944975A (en) * | 2019-12-10 | 2021-06-11 | 珠海格力电器股份有限公司 | Heat exchange structure, falling film heat exchanger and air conditioner |
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