JPS63148078U - - Google Patents
Info
- Publication number
- JPS63148078U JPS63148078U JP1944688U JP1944688U JPS63148078U JP S63148078 U JPS63148078 U JP S63148078U JP 1944688 U JP1944688 U JP 1944688U JP 1944688 U JP1944688 U JP 1944688U JP S63148078 U JPS63148078 U JP S63148078U
- Authority
- JP
- Japan
- Prior art keywords
- tube
- groove
- utility
- heat exchanger
- model registration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011295 pitch Substances 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 claims 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
第１図は本考案伝熱管の一例を示す説明図、第
２図は第１図の要部拡大図で、イは斜視図、ロ及
びハは交差する螺旋状溝の断面図、第３図〜第６
図は本考案伝熱管と従来伝熱管の伝熱性能を示す
もので、第３図は蒸発伝熱性能、第４図は凝縮伝
熱性能、第５図は圧力損失、第６図は螺旋状溝の
リード角と熱伝達率との関係を示す図面である。
ａ……伝熱管、ｂ１，ｂ２……互に交差する螺
旋状溝、α１，α２……溝のリード角、ｄ１，ｄ
２……溝の深さ、ｐ１，ｐ２……溝のピツチ。
Fig. 1 is an explanatory view showing an example of the heat transfer tube of the present invention, Fig. 2 is an enlarged view of the main part of Fig. 1, A is a perspective view, B and C are cross-sectional views of intersecting spiral grooves, and Fig. 3 ~6th
The figures show the heat transfer performance of the heat transfer tube of the present invention and the conventional heat transfer tube. It is a drawing showing the relationship between the lead angle of a groove and the heat transfer coefficient. a... Heat exchanger tube, b 1 , b 2 ... Mutually intersecting spiral grooves, α 1 , α 2 ... Lead angle of the groove, d 1 , d
2 ...Depth of the groove, p1 , p2 ...Pitch of the groove.
Claims (1)
る流体との間で熱交換を行う、内壁面に多数の螺
旋状溝を形成した伝熱管において、交差する多数
の螺旋状溝を形成し、交差する螺旋状溝と管軸と
の逆方向のリード角α１，α２を５〜４５°とし
、溝の深さｄ１，ｄ２を０．０５〜０．７５mm、
溝のピツチｐ１，ｐ２を０．２〜１．０mmとした
ことを特徴とする内面溝付伝熱管。 (2) 逆方向の螺旋状溝の溝深さｄ１，ｄ２をｄ
１≒ｄ２とする実用新案登録請求の範囲第１項記
載の内面溝付伝熱管。 (3) 螺旋状溝と管軸との逆方向のリード角α１
，α２をα１≒α２とする実用新案登録請求の範
囲第１項又は第２項記載の内面溝付伝熱管。 (4) 逆方向の溝ピツチｐ１，ｐ２をｐ１≒ｐ２
とする実用新案登録請求の範囲第１項、第２項又
は第３項記載の内面溝付伝熱管。[Claims for Utility Model Registration] (1) In a heat transfer tube with a large number of spiral grooves formed on the inner wall surface, which evaporates and condenses the refrigerant inside the tube and exchanges heat with the fluid flowing outside the tube, The lead angles α 1 and α 2 in opposite directions between the intersecting spiral grooves and the tube axis are set to 5 to 45°, and the groove depths d 1 and d 2 are set to 0.05°. ~0.75mm,
A heat exchanger tube with internal grooves, characterized in that pitches p 1 and p 2 of the grooves are 0.2 to 1.0 mm. (2) The groove depths d 1 and d 2 of the spiral groove in the opposite direction are d
1 ≒ d 2. The internally grooved heat exchanger tube according to claim 1 of the utility model registration claim. (3) Lead angle in the opposite direction between the helical groove and the tube axis α 1
, α 2 satisfies α 1 ≒ α 2 . The internally grooved heat exchanger tube according to claim 1 or 2 of the utility model registration claim. (4) The groove pitches p 1 and p 2 in the opposite direction are p 1 ≒ p 2
A heat exchanger tube with internal grooves according to claim 1, 2 or 3 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1944688U JPS63148078U (en) | 1988-02-17 | 1988-02-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1944688U JPS63148078U (en) | 1988-02-17 | 1988-02-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63148078U true JPS63148078U (en) | 1988-09-29 |
Family
ID=30814052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1944688U Pending JPS63148078U (en) | 1988-02-17 | 1988-02-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63148078U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54116765A (en) * | 1978-03-02 | 1979-09-11 | Daikin Ind Ltd | Heat exchange tube |
-
1988
- 1988-02-17 JP JP1944688U patent/JPS63148078U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54116765A (en) * | 1978-03-02 | 1979-09-11 | Daikin Ind Ltd | Heat exchange tube |
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