CN212179283U - Air conditioner heat exchanger and air conditioner - Google Patents
Air conditioner heat exchanger and air conditioner Download PDFInfo
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- CN212179283U CN212179283U CN202021007884.0U CN202021007884U CN212179283U CN 212179283 U CN212179283 U CN 212179283U CN 202021007884 U CN202021007884 U CN 202021007884U CN 212179283 U CN212179283 U CN 212179283U
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- 238000009833 condensation Methods 0.000 claims abstract description 20
- 230000005494 condensation Effects 0.000 claims abstract description 20
- 239000003507 refrigerant Substances 0.000 claims abstract description 20
- 238000004378 air conditioning Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 14
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 101100391241 Antheraea mylitta fpi-1 gene Proteins 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The utility model relates to an air conditioner heat exchanger and air conditioner, air conditioner heat exchanger, including the condenser pipe that extends along the horizontal direction, the condenser pipe includes: a tube body (1) having a tube cavity through which a medium exchanging heat with a refrigerant flows; and the heat exchanging part (2) extends outwards from the outer wall of the pipe body (1) along the radial direction of the pipe body (1), the heat exchanging part (2) comprises a plurality of first heat exchanging parts (21) positioned on the upper part of the pipe body (1) and a plurality of second heat exchanging parts (22) positioned on the lower part of the pipe body (1), and the distance between every two adjacent first heat exchanging parts (21) is smaller than that between every two adjacent second heat exchanging parts (22). Use the technical scheme of the utility model, the density of arranging of the first heat transfer part on the upper portion of body is greater than the density of arranging of the lower part second heat transfer part of body, is favorable to avoiding the refrigerant of condensation to adhere between the second heat transfer part, and the discharge velocity of the refrigerant of condensation reduces liquid refrigerant and piles up thickness on the heat exchange tube surface with higher speed.
Description
Technical Field
The utility model relates to a refrigeration technology field particularly, relates to an air conditioner heat exchanger and air conditioner.
Background
In a heat exchanger used by a central air-conditioning system, a condenser pipe is an important heat exchange element of a condenser, and the performance of the condenser pipe greatly influences the performance of the whole system. The condenser is generally arranged horizontally with the condenser tube. When the condensing pipe works, high-temperature and high-pressure refrigerant steam is cooled on the outer wall of the condensing pipe to generate film condensation, and condensate is gathered at the lower part of the condensing pipe under the action of gravity and then drops. The conventional condenser tube is generally manufactured by an extrusion process to obtain a continuous two-dimensional outer fin structure with a sawtooth-shaped outer wall. The heat exchange tube which is beneficial to puncturing and thinning a condensate liquid film so as to reduce the heat transfer resistance of the condensation side of the heat exchange tube and accelerate liquid drainage (relative to a light tube) has high condensation efficiency. Therefore, in the aspect of strengthening condensation heat exchange of the heat exchange tube, the basic principle of heat exchange tube design is to reduce the thickness of the liquid film as much as possible. This principle derives two optimization points. Firstly, a liquid film which is directly stuck on the heat exchange surface when steam is condensed is thinned; secondly, condensate condensed on the heat exchange surface is timely drained, and the condensate is prevented from accumulating to thicken a liquid film and thicken a thermal resistance.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air conditioner heat exchanger that is favorable to the condensate on the quick discharge condenser pipe.
According to the utility model discloses an aspect of embodiment provides an air conditioner heat exchanger, air conditioner heat exchanger includes the condenser pipe that extends along the horizontal direction, and the condenser pipe includes:
a pipe body having a pipe cavity through which a medium exchanging heat with a refrigerant flows; and
the heat exchange part extends outwards from the outer wall of the pipe body along the radial direction of the pipe body, the heat exchange part comprises a plurality of first heat exchange parts located on the upper portion of the pipe body and a plurality of second heat exchange parts located on the lower portion of the pipe body, and the distance between every two adjacent first heat exchange parts is smaller than the distance between every two adjacent second heat exchange parts.
In some embodiments, a pipe body comprises:
a first portion for disposing a first heat exchange member thereon;
and the second part is positioned below the first part and connected with the first part and is used for arranging a second heat exchange component thereon.
In some embodiments, the first portion and the second portion are welded.
In some embodiments of the present invention, the,
the first heat exchange part comprises a first fin arranged on the tube body; and
the second heat exchange part comprises second fins arranged on the tube body.
In some embodiments of the present invention, the,
the first fin extends spirally in the circumferential direction of the tube body; or
The second fin extends spirally in the circumferential direction of the tube body.
In some embodiments, the pitch of the first fin is less than the pitch of the second fin.
In some embodiments of the present invention, the,
the first heat exchange part comprises a plurality of first teeth which are arranged on the outer wall of the pipe body side by side along the direction of the first spiral line; and
the second heat exchange component comprises a plurality of second teeth which are arranged on the outer wall of the pipe body side by side along the direction of the second spiral line.
In some embodiments of the present invention, the,
the pitch of the first spiral line is smaller than that of the second spiral line; and
the distance between two adjacent first teeth is smaller than that between two adjacent second teeth.
In some embodiments, the heat exchanging portion includes a plurality of rows of teeth arranged along the circumferential direction of the tube body, and a cutting groove parallel to the axial direction of the tube body is formed between two adjacent rows of teeth.
According to the utility model discloses an on the other hand still provides an air conditioner, and the air conditioner includes foretell air conditioner heat exchanger.
Use the technical scheme of the utility model, the density of arranging of the first heat transfer part on the upper portion of body is greater than the density of arranging of the lower part second heat transfer part of body, is favorable to avoiding the refrigerant of condensation to adhere between the second heat transfer part, and the discharge velocity of the refrigerant of condensation accelerates reduces liquid refrigerant and piles up thickness on heat exchange tube surface to reduced the thermal resistance, promoted the heat transfer ability of conventional horizontal condenser pipe lower part, the whole heat transfer ability of reinforcing condenser pipe.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly introduced 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 these drawings without inventive labor.
Fig. 1 shows a schematic structural view of a condenser tube of an air conditioner heat exchanger according to a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional view illustrating a condenser tube of an air conditioner heat exchanger according to a first embodiment of the present invention;
fig. 3 shows a schematic structural diagram of a condenser tube of an air conditioner heat exchanger according to a second embodiment of the present invention; and
fig. 4 shows a schematic structural diagram of a condenser tube of an air conditioner heat exchanger according to a third embodiment of the present invention.
In the figure:
1. a pipe body; 11. a first portion; 12. a second portion; 2. a heat exchanging part; 21. a first heat exchange member; 22. a second heat exchange member; 3. and an inner rack.
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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.
Example one
Fig. 1 shows a schematic structural diagram of a condensation duct of an air conditioner heat exchanger according to the present embodiment, and fig. 2 shows a schematic structural sectional diagram of the condensation duct according to the present embodiment.
Referring to fig. 1 and 2, the air conditioner heat exchanger of the present embodiment includes a condensation pipe extending in a horizontal direction, the condensation pipe includes a pipe body 1 and a heat exchange portion 2, the pipe body 1 has a pipe cavity through which a medium exchanging heat with a refrigerant flows; the heat exchanging part 2 extends outwards from the outer wall of the pipe body 1 along the radial direction of the pipe body 1, the heat exchanging part 2 comprises a plurality of first heat exchanging parts 21 positioned on the upper part of the pipe body 1 and a plurality of second heat exchanging parts 22 positioned on the lower part of the pipe body 1, and the distance between every two adjacent first heat exchanging parts 21 is smaller than that between every two adjacent second heat exchanging parts 22.
In this embodiment, the arrangement density of the first heat exchange part 21 on the upper portion of the tube body 1 is greater than the arrangement density of the second heat exchange part 22 on the lower portion of the tube body 1, which is beneficial to preventing the condensed refrigerant from adhering between the second heat exchange parts 22, accelerating the discharge speed of the condensed refrigerant, and reducing the thickness of the liquid refrigerant accumulated on the surface of the heat exchange tube, thereby reducing the thermal resistance, improving the heat exchange capacity of the lower portion of the conventional horizontal condensation tube, and enhancing the whole heat exchange capacity of the condensation tube.
Furthermore, the end of the heat exchange part, which is far away from the tube body 1, is a tip, which is beneficial to puncturing a refrigerant liquid film, accelerating the discharge speed of condensed refrigerants and reducing the accumulation thickness of liquid refrigerants on the surface of the heat exchange tube, thereby reducing the thermal resistance.
In some embodiments, the tubular body 1 comprises a first portion 11 and a second portion 12, the first portion 11 being used for arranging a first heat exchange member 21 thereon; the second portion 12 is located below the first portion 11 and connected to the first portion 11 for disposing the second heat exchange member 22 thereon.
The first portion 11 of the tube body 1 and the first heat exchange part 21 thereon are separately manufactured, the second portion of the tube body 1 and the second heat exchange part 22 thereon are separately manufactured, and then the first portion 11 to which the first heat exchange part 21 is connected and the second portion to which the second heat exchange part 22 is connected are connected together, thereby forming a condensation duct of the air conditioner heat exchanger.
In some embodiments, the first portion 11 and the second portion 12 are welded.
The first heat exchange part 21 comprises first fins arranged on the tube body 1; the second heat exchanging elements 22 comprise second fins provided on the tube body 1.
The first fins extend spirally in the circumferential direction of the tube body 1; or the second fins extend spirally in the circumferential direction of the pipe body 1.
In this embodiment, the pitch of the first fin is smaller than the pitch of the second fin.
As shown in fig. 2, in a longitudinal section of the condensation duct, the width L1 of the first fin is 0.05mm to 0.4mm, preferably 0.1 mm; the height H1 of the first fin is 0.6mm to 1.2mm, preferably 1.0 mm. The longitudinal section is a section passing through the axis of the pipe body 1.
In the longitudinal section of the condenser tube, the number of the FPIs 1 (fins per inch) of the first fin is 40 to 100, and the number of the FPIs 2 of the second fin is 40 to 80. Under the condition of meeting the working condition, the FPI1 is required to be at least 20-30% larger than the FPI 2.
In the present embodiment, the inner wall of the tubular body 1 is provided with an inner rack 3 spirally extending in the circumferential direction, and the helix angle θ of the inner rack 3 is 30 ° to 75 °, preferably 42 °.
In the cross section of the condensation duct, the number of internal racks 3 arranged side by side in the circumferential direction of the tubular body 1 is 30 to 70, preferably 55.
According to the utility model discloses an on the other hand still provides an air conditioner, and this air conditioner includes foretell air conditioner heat exchanger.
Example two
Fig. 3 shows a schematic structural diagram of a condensation duct of the present embodiment, and fig. 4 shows a schematic structural diagram of another alternative embodiment of the present embodiment.
The first heat exchange part 21 comprises a plurality of first teeth which are arranged on the outer wall of the pipe body 1 side by side along the direction of the first spiral line; the second heat exchanging element 22 comprises a plurality of second teeth arranged side by side in the direction of the second spiral on the outer wall of the tube body 1.
The arrangement density of the first teeth is greater than the removal density of the second teeth, so that the condensed refrigerant is prevented from adhering between the second heat exchange parts 22, the discharge speed of the condensed refrigerant is accelerated, the thickness of the liquid refrigerant accumulated on the surface of the heat exchange tube is reduced, the thermal resistance is reduced, the heat exchange capacity of the lower part of the conventional horizontal condenser tube is improved, and the whole heat exchange capacity of the condenser tube is enhanced.
In some embodiments, the pitch of the first helix is less than the pitch of the second helix; the distance between two adjacent first teeth is smaller than that between two adjacent second teeth.
The heat exchanging part 2 comprises a plurality of rows of teeth arranged along the circumferential direction of the pipe body 1, and a cutting groove parallel to the axial direction of the pipe body 1 is formed between every two adjacent rows of teeth.
In this embodiment, the rows of teeth are formed by cutting grooves in the condenser tube having circumferentially extending fins in the axial direction of the condenser tube.
The end of each tooth, which is far away from the tube body 1, is a sharp end, so that the density of sharp points which are beneficial to puncturing a liquid film is increased, and because the teeth are mutually independent, a condensate liquid circulation channel is more smooth, liquid discharge is accelerated, and heat exchange is enhanced.
The above description is only exemplary embodiments of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An air conditioner heat exchanger comprising a condensation duct extending in a horizontal direction, wherein the condensation duct comprises:
a tube body (1) having a tube cavity through which a medium exchanging heat with a refrigerant flows; and
the heat exchanging part (2) extends outwards from the outer wall of the pipe body (1) along the radial direction of the pipe body (1), the heat exchanging part (2) comprises a plurality of first heat exchanging parts (21) located on the upper portion of the pipe body (1) and a plurality of second heat exchanging parts (22) located on the lower portion of the pipe body (1), and the distance between every two adjacent first heat exchanging parts (21) is smaller than that between every two adjacent second heat exchanging parts (22).
2. Air conditioning heat exchanger according to claim 1, characterized in that the tubular body (1) comprises:
a first portion (11) for disposing the first heat exchange member (21) thereon;
a second part (12) located below the first part (11) and connected to the first part (11) for disposing the second heat exchange member (22) thereon.
3. Air conditioning heat exchanger according to claim 2, wherein the first portion (11) and the second portion (12) are welded.
4. An air conditioner heat exchanger according to claim 1,
the first heat exchange part (21) comprises a first fin arranged on the tube body (1); and
the second heat exchange part (22) comprises second fins arranged on the tube body (1).
5. An air conditioner heat exchanger according to claim 4,
the first fins extend helically in the circumferential direction of the tube body (1); or
The second fin extends spirally in the circumferential direction of the tube body (1).
6. An air conditioner heat exchanger as set forth in claim 5 wherein the pitch of said first fin is less than the pitch of said second fin.
7. An air conditioner heat exchanger according to claim 1,
the first heat exchange part (21) comprises a plurality of first teeth which are arranged on the outer wall of the pipe body (1) side by side along the direction of a first spiral line; and
the second heat exchange part (22) comprises a plurality of second teeth which are arranged on the outer wall of the pipe body (1) side by side along the direction of a second spiral line.
8. An air conditioner heat exchanger according to claim 7,
the pitch of the first spiral line is smaller than that of the second spiral line; and
the distance between two adjacent first teeth is smaller than that between two adjacent second teeth.
9. The air conditioner heat exchanger according to claim 1, wherein the heat exchanging portion (2) includes a plurality of rows of teeth arranged along a circumferential direction of the pipe body (1), and a groove parallel to an axial direction of the pipe body (1) is formed between adjacent rows of teeth.
10. An air conditioner characterized by comprising the air conditioner heat exchanger as recited in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021007884.0U CN212179283U (en) | 2020-06-04 | 2020-06-04 | Air conditioner heat exchanger and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021007884.0U CN212179283U (en) | 2020-06-04 | 2020-06-04 | Air conditioner heat exchanger and air conditioner |
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| CN212179283U true CN212179283U (en) | 2020-12-18 |
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| CN202021007884.0U Active CN212179283U (en) | 2020-06-04 | 2020-06-04 | Air conditioner heat exchanger and air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503946A (en) * | 2020-06-04 | 2020-08-07 | 珠海格力电器股份有限公司 | Air conditioner heat exchanger and air conditioner |
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- 2020-06-04 CN CN202021007884.0U patent/CN212179283U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503946A (en) * | 2020-06-04 | 2020-08-07 | 珠海格力电器股份有限公司 | Air conditioner heat exchanger and air conditioner |
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