JP5566001B2 - 二酸化炭素冷媒を使用したガスクーラー用内面溝付伝熱管 - Google Patents
二酸化炭素冷媒を使用したガスクーラー用内面溝付伝熱管 Download PDFInfo
- Publication number
- JP5566001B2 JP5566001B2 JP2007093437A JP2007093437A JP5566001B2 JP 5566001 B2 JP5566001 B2 JP 5566001B2 JP 2007093437 A JP2007093437 A JP 2007093437A JP 2007093437 A JP2007093437 A JP 2007093437A JP 5566001 B2 JP5566001 B2 JP 5566001B2
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- Japan
- Prior art keywords
- tube
- groove
- heat transfer
- refrigerant
- fin
- 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.)
- Active
Links
- 238000012546 transfer Methods 0.000 title claims description 102
- 239000003507 refrigerant Substances 0.000 title claims description 92
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims description 66
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims description 33
- 239000001569 carbon dioxide Substances 0.000 title claims description 30
- 239000010721 machine oil Substances 0.000 claims description 45
- 238000001816 cooling Methods 0.000 claims description 8
- 238000009751 slip forming Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 31
- 238000005057 refrigeration Methods 0.000 description 16
- 239000010726 refrigerant oil Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000012360 testing method Methods 0.000 description 10
- 230000007423 decrease Effects 0.000 description 8
- 238000002156 mixing Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000005070 sampling Methods 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229920001515 polyalkylene glycol Polymers 0.000 description 3
- 229910001006 Constantan Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910000809 Alumel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
前記溝は管軸方向に平行の複数本の溝であるか、又は前記溝と管軸とがなす捩れ角θ1が0°<θ1≦0.5°の溝であり、
前記溝は、前記溝に直交する断面における形状が、台形状であり、
前記溝深さh1が0.15mm≦h1≦0.27mmであり、
前記フィンは、その長手方向に連続的に形成されていて、分断されておらず、
管軸直交断面における前記フィンの根元ピッチP1が0.32mm≦P1≦0.67mm、フィン山頂角FTAがFTA≦35°であり、フィン先端部は曲率半径FTRがFTR≦0.045mmで湾曲し、
前記二酸化炭素冷媒には、冷凍機油が混合されており、管内の前記冷凍機油の通流量は、前記二酸化炭素冷媒の通流量の0.5質量%以下であることを特徴とする。
の内部にはCO2冷媒を通流させ、これらの伝熱管と外管との間には冷却水を通流させた
。その際、CO2冷媒の通流方向と冷却水の通流方向とが相互に逆になるようにした。
2:溝
3:フィン
4;ガス冷却器
5;圧縮機
6;オイルセパレータ
7;膨張弁
8,9;蒸発器
10;予冷器
11;過冷却器
12a,12b;アキュームレータ
13;質量流量計
14a〜14g,21a;冷媒混合室
15a〜15g,22a;熱電対
16a〜16f,23a;圧力変換器
17;熱源
18a〜18c;二重管
19a〜19f;熱源水混合室
20a〜20d;差圧変換器
24;サンプリングポート
Claims (1)
- 断面が円形の管内を超臨界状態で通流する二酸化炭素冷媒を冷却するガスクーラー用の内面溝付伝熱管において、管内面に溝及び前記溝間に形成されるフィンが配置されており、前記溝は管軸方向に平行の複数本の溝であるか、又は前記溝と管軸とがなす捩れ角θ1が0°<θ1≦0.5°の溝であり、
前記溝は、前記溝に直交する断面における形状が、台形状であり、
前記溝深さh1が0.15mm≦h1≦0.27mmであり、
前記フィンは、その長手方向に連続的に形成されていて、分断されておらず、
管軸直交断面における前記フィンの根元ピッチP1が0.32mm≦P1≦0.67mm、フィン山頂角FTAがFTA≦35°であり、フィン先端部は曲率半径FTRがFTR≦0.045mmで湾曲し、
前記二酸化炭素冷媒には、冷凍機油が混合されており、管内の前記冷凍機油の通流量は、前記二酸化炭素冷媒の通流量の0.5質量%以下であることを特徴とする二酸化炭素冷媒を使用したガスクーラー用内面溝付伝熱管。
Priority Applications (1)
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---|---|---|---|
JP2007093437A JP5566001B2 (ja) | 2007-03-30 | 2007-03-30 | 二酸化炭素冷媒を使用したガスクーラー用内面溝付伝熱管 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007093437A JP5566001B2 (ja) | 2007-03-30 | 2007-03-30 | 二酸化炭素冷媒を使用したガスクーラー用内面溝付伝熱管 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008249294A JP2008249294A (ja) | 2008-10-16 |
JP5566001B2 true JP5566001B2 (ja) | 2014-08-06 |
Family
ID=39974446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007093437A Active JP5566001B2 (ja) | 2007-03-30 | 2007-03-30 | 二酸化炭素冷媒を使用したガスクーラー用内面溝付伝熱管 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5566001B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010133609A (ja) * | 2008-12-03 | 2010-06-17 | Daikin Ind Ltd | 熱交換器用伝熱管及び熱交換器用伝熱管を備えた冷凍装置 |
CN109724444B (zh) * | 2017-10-27 | 2020-12-18 | 中国石油化工股份有限公司 | 传热管和裂解炉 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5883189A (ja) * | 1981-11-12 | 1983-05-18 | Furukawa Electric Co Ltd:The | 伝熱管 |
JPH10122779A (ja) * | 1996-10-23 | 1998-05-15 | Mitsubishi Shindoh Co Ltd | 内面溝付伝熱管 |
JPH11223484A (ja) * | 1997-12-02 | 1999-08-17 | Mitsubishi Heavy Ind Ltd | 熱交換器 |
JP2001033185A (ja) * | 1999-07-16 | 2001-02-09 | Sumitomo Light Metal Ind Ltd | 内面溝付伝熱管及びその設計方法 |
JP2005127570A (ja) * | 2003-10-22 | 2005-05-19 | Toshiba Kyaria Kk | 伝熱管及びこれを用いた冷凍装置 |
JP2005188789A (ja) * | 2003-12-24 | 2005-07-14 | Mitsubishi Materials Corp | 二酸化炭素用伝熱管及びその製造方法 |
JP4119836B2 (ja) * | 2003-12-26 | 2008-07-16 | 株式会社コベルコ マテリアル銅管 | 内面溝付伝熱管 |
JP4386813B2 (ja) * | 2004-08-27 | 2009-12-16 | 株式会社コベルコ マテリアル銅管 | 蒸発器用内面溝付伝熱管 |
JP4651366B2 (ja) * | 2004-12-02 | 2011-03-16 | 住友軽金属工業株式会社 | 高圧冷媒用内面溝付伝熱管 |
JP2006188789A (ja) * | 2005-01-06 | 2006-07-20 | Shimano Inc | ベスト型身体装着体 |
JP2006322661A (ja) * | 2005-05-18 | 2006-11-30 | Furukawa Electric Co Ltd:The | 放熱用伝熱管および放熱器 |
-
2007
- 2007-03-30 JP JP2007093437A patent/JP5566001B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2008249294A (ja) | 2008-10-16 |
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