CN217844879U - Internal thread aluminum pipe with outer diameter of 9.52mm, heat exchanger and air conditioner - Google Patents
Internal thread aluminum pipe with outer diameter of 9.52mm, heat exchanger and air conditioner Download PDFInfo
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- CN217844879U CN217844879U CN202221749378.8U CN202221749378U CN217844879U CN 217844879 U CN217844879 U CN 217844879U CN 202221749378 U CN202221749378 U CN 202221749378U CN 217844879 U CN217844879 U CN 217844879U
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Abstract
The utility model provides an external diameter is 9.52 mm's internal thread aluminum pipe, heat exchanger, air conditioner, and wherein external diameter is 9.52 mm's internal thread aluminum pipe, include the aluminum pipe body and be in internal thread on the interior pore wall of aluminum pipe body, internal screw thread profile of tooth parameter is: the helix angle beta is more than or equal to 10 degrees and less than or equal to 25 degrees; the crest angle alpha is more than or equal to 27 degrees and less than or equal to 29 degrees; the height Fh of the teeth is more than or equal to 0.26mm and less than or equal to 0.34mm; the number of the teeth n is more than or equal to 66 and less than or equal to 76. According to the utility model, the evaporation heat transfer coefficient of the internal thread aluminum pipe is about 6000w/m 2 K, a condensation heat transfer coefficient of about 4600w/m 2 K, the heat transfer performance is greatly improved; and the weight per meter of the heat exchange tube can be obviously reduced, thereby greatly reducing the material cost.
Description
Technical Field
The utility model belongs to the technical field of air conditioning, concretely relates to external diameter is 9.52 mm's internal thread aluminum pipe, heat exchanger, air conditioner.
Background
In order to realize energy conservation and light weight of the heat exchanger, aluminum replaces copper, and copper pipes in the heat exchanger of the indoor unit and the outdoor unit of the air conditioner are replaced by aluminum pipes. The volume and the quality of the heat exchanger are controlled under the condition of realizing the same heat exchange quantity, and raw materials are saved. Based on research and analysis, the internal thread aluminum pipe is used as an important component in the heat exchanger, and the structure of the internal thread aluminum pipe has a larger optimization space. The purpose of heat transfer enhancement can be effectively achieved by optimizing tooth profile parameters (tooth crest angle, number of racks and helical angle) of the internal thread aluminum pipe, namely the aluminum pipe and the heat exchanger are lightened while the energy efficiency is improved. Based on this, the utility model discloses.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides an external diameter is 9.52 mm's internal thread aluminum pipe, heat exchanger, air conditioner, can overcome the tooth parameter of the internal thread aluminum pipe in the heat exchanger among the correlation technique and optimize inadequately, and heat transfer performance is on the low side and the not enough of lightweight inadequately.
In order to solve the problem, the utility model provides an external diameter is 9.52 mm's internal thread aluminum pipe, include the aluminum pipe body and be in internal thread on the interior pore wall of aluminum pipe body, internal screw thread profile of tooth parameter is: helix angle beta, beta is more than or equal to 10 degrees and less than or equal to 25 degrees; the crest angle alpha is more than or equal to 27 degrees and less than or equal to 29 degrees; the height Fh of the teeth is more than or equal to 0.26mm and less than or equal to 0.34mm; the number of the teeth n is more than or equal to 66 and less than or equal to 76.
In some embodiments, β =15 °.
In some embodiments, α =28 °.
In some embodiments, fh =0.3mm.
In some embodiments, n =70.
In some embodiments, the bottom wall thickness Bwt of the aluminum pipe body is 0.6 mm. Ltoreq. Bwt. Ltoreq.0.7 mm.
In some embodiments, bwt =0.65mm.
In some embodiments, the cross-section of the internal thread is triangular.
The utility model also provides a heat exchanger, including the heat exchange tube, the heat exchange tube is foretell external diameter and is 9.52 mm's internal thread aluminum pipe.
The utility model also provides an air conditioner, including foretell heat exchanger.
The utility model provides a pair of external diameter is 9.52 mm's internal thread aluminum pipe, heat exchanger, air conditioner, and internal thread aluminum pipe evaporation heat transfer coefficient is about 6000w/m 2 K, a condensation heat transfer coefficient of about 4600w/m 2 K, the heat transfer performance is greatly improved; and the grammage of the heat exchange tube can be obviously reduced, so that the material cost is greatly reduced.
Drawings
FIG. 1 is a schematic structural view (partially cut away) of an internally threaded aluminum pipe with an outer diameter of 9.52mm according to an embodiment of the present invention;
fig. 2 is a schematic structural view (axial projection) of an internal thread aluminum pipe with an outer diameter of 9.52mm according to an embodiment of the present invention.
The reference numerals are represented as:
1. an aluminum pipe body; 2. an internal thread.
Detailed Description
Referring to fig. 1 to 2 in combination, according to an embodiment of the present invention, there is provided an internal thread aluminum pipe with an outer diameter of 9.52mm (i.e. Φ 9.52, i.e. Φ =9.52 mm), including an aluminum pipe body 1 and an internal thread 2 on an inner hole wall of the aluminum pipe body 1, wherein a tooth profile parameter of the internal thread 2 is: the helix angle beta is more than or equal to 10 degrees and less than or equal to 25 degrees; the crest angle alpha is more than or equal to 27 degrees and less than or equal to 29 degrees; the height Fh of the teeth is more than or equal to 0.26mm and less than or equal to 0.34mm; the number of the teeth n is more than or equal to 66 and less than or equal to 76. The evaporation heat transfer coefficient of the internal thread aluminum pipe of the technical proposal is about 6000w/m 2 K, condensation Heat transfer coefficient of about 4600w/m 2 K, the heat transfer performance is greatly improved; thereby and can obviously reduce the mike of heat exchange tube and weigh greatly reduced material cost, specific mike is heavy the aspect, the utility model discloses an external diameter is 9.52 mm's internal thread aluminum pipe and sameCompared with the internal thread copper pipe with the size, the grammage of the copper pipe is reduced from the original 85.2g/m to 52g/m, and is reduced by about 39%.
As a preferred specific implementation, β =15 °; α =28 °; fh =0.3mm; n =70; the bottom wall thickness Bwt of the aluminum pipe body 1 is more than or equal to 0.6mm and less than or equal to 0.7mm, and preferably, bwt =0.65mm.
Determining the tooth height of the phi 9.52 internal thread tube to be 0.3mm, the helical angle to be 15 degrees and the number of the racks to be 70, wherein the increase of the number of the teeth is favorable for increasing the heat exchange area of the inner surface of the internal thread tube, increasing the number of vaporization cores in the evaporation process and enhancing the boiling heat exchange; the increase of the helical angle can enable the refrigerant in the pipeline to generate secondary flow different from the radial direction, increase the turbulence intensity and enhance the convective heat transfer during evaporation and condensation; in conclusion, the tooth form optimization of the phi 9.52 internal thread aluminum pipe improves the heat exchange performance and reduces the grammage.
In some embodiments, the cross-section of the internal thread 2 is triangular.
According to the utility model discloses an embodiment still provides a heat exchanger, including the heat exchange tube, the heat exchange tube is foretell external diameter and is 9.52 mm's internal thread aluminum pipe.
According to the utility model discloses an embodiment still provides an air conditioner, including foretell heat exchanger.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention. The above 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. An internally threaded aluminum pipe with the outer diameter of 9.52mm is characterized by comprising an aluminum pipe body (1) and internal threads (2) on the inner hole wall of the aluminum pipe body (1), wherein the tooth profile parameters of the internal threads (2) are as follows: the helix angle beta is more than or equal to 10 degrees and less than or equal to 25 degrees; the crest angle alpha is more than or equal to 27 degrees and less than or equal to 29 degrees; the height Fh of the teeth is more than or equal to 0.26mm and less than or equal to 0.34mm; the number of the teeth n is more than or equal to 66 and less than or equal to 76.
2. An internally threaded aluminum pipe having an outer diameter of 9.52mm as set forth in claim 1 wherein β =15 °.
3. An internally threaded aluminium pipe having an external diameter of 9.52mm as claimed in claim 1, wherein α =28 °.
4. An internally threaded aluminum pipe having an outer diameter of 9.52mm as set forth in claim 1 wherein Fh =0.3mm.
5. An internally threaded aluminium pipe having an external diameter of 9.52mm as claimed in claim 1, wherein n =70.
6. An internally threaded aluminum pipe having an outer diameter of 9.52mm as set forth in claim 1 wherein the bottom wall thickness Bwt of said aluminum pipe body (1) is 0.6 mm. Ltoreq. Bwt. Ltoreq.0.7 mm.
7. An internally threaded aluminum pipe having an outer diameter of 9.52mm as set forth in claim 6 wherein Bwt =0.65mm.
8. An internally threaded aluminium pipe having an external diameter of 9.52mm according to any one of claims 1 to 7 wherein the internal thread (2) is triangular in cross-section.
9. A heat exchanger comprising a heat exchange tube, wherein the heat exchange tube is an internally threaded aluminum tube having an outer diameter of 9.52mm as recited in any one of claims 1 to 8.
10. An air conditioner characterized by comprising the heat exchanger of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221749378.8U CN217844879U (en) | 2022-07-08 | 2022-07-08 | Internal thread aluminum pipe with outer diameter of 9.52mm, heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221749378.8U CN217844879U (en) | 2022-07-08 | 2022-07-08 | Internal thread aluminum pipe with outer diameter of 9.52mm, heat exchanger and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217844879U true CN217844879U (en) | 2022-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221749378.8U Active CN217844879U (en) | 2022-07-08 | 2022-07-08 | Internal thread aluminum pipe with outer diameter of 9.52mm, heat exchanger and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217844879U (en) |
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2022
- 2022-07-08 CN CN202221749378.8U patent/CN217844879U/en active Active
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