AU2007270121A1 - Heat exchanger with cooling fins - Google Patents
Heat exchanger with cooling fins Download PDFInfo
- Publication number
- AU2007270121A1 AU2007270121A1 AU2007270121A AU2007270121A AU2007270121A1 AU 2007270121 A1 AU2007270121 A1 AU 2007270121A1 AU 2007270121 A AU2007270121 A AU 2007270121A AU 2007270121 A AU2007270121 A AU 2007270121A AU 2007270121 A1 AU2007270121 A1 AU 2007270121A1
- Authority
- AU
- Australia
- Prior art keywords
- heat exchanger
- tube
- profiled
- heat
- strip
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims description 16
- 239000012530 fluid Substances 0.000 claims description 4
- 239000010779 crude oil Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/0206—Heat exchangers immersed in a large body of liquid
- F28D1/022—Heat exchangers immersed in a large body of liquid for immersion in a natural body of water, e.g. marine radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
-
- 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
-
- 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
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
- F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0059—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for petrochemical plants
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Ocean & Marine Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
WO 2008/004886 PCT/N02007/000252 1 Heat exchanger with cooling fins 5 BACKGROUND OF THE INVENTION The invention relates to an improved heat exchanger. OTC paper 17399 "Subsea Gas Compression - Challenges and Solutions" presented by R.Fantoft at the Offshore 10 Technology Conference held in Houston, USA on 2-5 May 2005 and International patent applications W003/033870, W003/035335 and WO 2005/026497 disclose various types of heat exchangers that may be used in subsea natural gas and/or crude oil production facilities. 15 It is generally desirable to provide heat exchangers with heat exchanger tubes with a large inner and/or outer surface to enhance heat exchange between fluids in the interior and exterior of the heat exchanger tubes. 20 It is an object of the present invention to provide an improved heat exchanger with heat exchanger tubes with an enlarged inner and/or outer surface. The structural elements that are attached to the inner and/or outer 25 surface have the following two benefits. (i) The heat excharger pipe can be made thinner for a given required design pressure, as the structural elements will provide structural strength. This reduces the heat resistance of the tube wall, thus increasing the heat transfer 30 properties. (ii) The structural elements will increase the area for heat transfer, and heat will flow from the tube wall into the structural elements by conduction.
WO 2008/004886 PCT/N02007/000252 2 SUMMARY OF THE INVENTION In accordance with the invention there is provided a heat exchanger comprising at least one heat exchanging tube with a profiled inner and/or outer surface, which profiled 5 surface provides at least one cooling fin. The use of heat exchanging tubes with a profiled inner and/or outer surface has the following two benefits. 10 I)The heat exchanging tubes can be made thinner for a given required design pressure, as the profiled surfaces will provide structural strength. This reduces the heat resistance of the tube wall, thus increasing the heat transfer properties; and 15 II) The profiled surfaces elements will provide cooling fins that increase the area for heat transfer, and heat will flow from the tube wall into the cooling fins by conduction. 20 Preferably each heat exchanger tube comprises one or more cooling fins which protrude in a substantially radial direction from the outer wall of each tube. In a suitable embodiment a plurality of disk shaped cooling 25 fins are arranged at the outer wall of each heat exchanger tube, which fins are distributed at substantially equal intervals along the length of each tube. In a preferred embodiment each tube is provided with a 30 helical cooling fin, which extends along at least part of the length of each tube.
WO 2008/004886 PCT/N02007/000252 3 In a particularly preferred embodiment each tube is made of a profiled strip which is helically wound such that adjacent strip sections at least partly overlap each other and such that the overlapping strip sections comprise 5 intermeshing profiles that are clamped together and which profiles form the cooling helical cooling fin. Preferably the profiled strip may be made of metal and the heat exchanger may comprise a plurality of heat exchanger 10 tubes that are arranged substantially parallel to each other between a pair of fluid commingling conduits, that are often referred to as headers. The profiled strip may have intermeshing profiled edges 15 which dovetail into each other in the manner as disclosed in US patent 6,516,833. The heat exchanger may be installed at an underwater location and cooled by (sea)water surrounding the heat 20 exchanger and may be a component of an underwater gas and/or crude oil assembly. These and other features, embodiments and advantages of the heat exchanger according to the invention are described in 25 the accompanying claims, abstract and the following detailed description of a preferred embodiment in which reference is made to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWING 30 FIG.1 depicts a schematic view of a heat exchanger provided with profiled heat exchanging tubes according to the invention; WO 2008/004886 PCT/N02007/000252 4 FIG.2 depicts in more detail a section of one of the profiled heat exchanging tubes of the heat exchanger shown in FIG.1; and FIG 3 depicts in more detail a section of the profiled 5 helical strip of which the profiled helical tube of FIG.1 and 2 is made. DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION 10 FIG.1 depicts a heat exchanger comprising a pair of fluid commingling conduits 1 and 2 between which a series of seven heat exchanging tubes 3 are arranged, which are each contain a profiled helical strip 4. 15 FIG.3 shows that the profiled helical strip 4 comprises complementary profiled edges 5 and 6, such that the L shaped profiled edge 6 of one section of the strip 4 fits into the U-shaped profiled edge 5 of an adjacent section of 20 the strip 4, which partly overlaps said one section of the strip. The strip 4 may be made of metal and the L-shaped profiled edge 6 may be welded, brazed, glued and/or otherwise bonded to the U-shaped profiled edge 5 of the adjacent strip section. 25 FIG.2 illustrates that the helically wound profiled strip provides a profiled heat exchanging tube 3 of which the outer surface has a helical profile formed by the outer surface of the helically wound U-shaped profiled edge 5. 30 The U-shaped profile is inverted such that both ends of the U-shape are in contact with the heat exchanger tube.
WO 2008/004886 PCT/N02007/000252 5 It will be understood that the inner surface of the heat exchanging tube 3 may have a helical profile formed by the inner surface of the helically wound profiled edge 6. 5 It will further be understood that the helical profiled inner and outer surfaces will enhance the heat exchanging surface of the heat exchanging tube 3, such that the heat exchanger can be made more compact than conventional heat exchangers that are provided with substantially cylindrical 10 heat exchanging tubes. A further advantage of the use of profiled heat exchanging tubes 3 is that the helically profiled inner and outer surfaces not only provide cooling fins, but also 15 reinforcement ribs, so that the wall thickness of the tubes 3 can be decreased, which further enhances the heat exchanging capacity of the heat exchanger, so that the heat exchanger will be more compact and lighter than conventional heat exchangers with cylindrical heat 20 exchanging tubes. The heat exchanger according to the invention is suitable to be used in any industrial application, in particular in subsea oil and/or gas production facilities or at topsides 25 of offshore oil and/or production platforms.
Claims (9)
1. A heat exchanger comprising at least one heat exchanging tube with a profiled inner and/or outer 5 surface, which profiled surface provides at least one cooling fin.
2. The heat exchanger of claim 1, wherein each heat exchanger tube comprises one or more cooling fins 10 which protrude in a substantially radial direction from the outer wall of each tube.
3. The heat exchanger of claim 2, wherein a plurality of disk shaped cooling fins are arranged at the outer 15 wall of each heat exchanger tube, which fins are distributed at substantially equal intervals along the length of each tube.
4. The heat exchanger of claim 2, wherein each tube is 20 provided with a helical cooling fin, which extends along at least part of the length of each tube.
5. The heat exchanger of claim 4, wherein each tube is made of a profiled strip which is helically wound such 25 that adjacent strip sections at least partly overlap each other and such that the overlapping strip sections comprise intermeshing profiles that are clamped together and which profiles form the helical cooling fin. 30
6. The heat exchanger of claim 5, wherein the profiled strip is made of metal. WO 2008/004886 PCT/N02007/000252 7
7. The heat exchanger of claim 1, wherein the a plurality of heat exchanger tubes are arranged substantially parallel to each other between a pair of fluid commingling conduits. 5
8. The heat exchanger of claim 1, wherein the heat exchanger is installed at an underwater location and is cooled by water surrounding the heat exchanger. 10
9. The heat exchanger of claim 8, wherein the heat exchanger is a component of an underwater gas and/or crude oil assembly.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20063166A NO20063166L (en) | 2006-07-07 | 2006-07-07 | Heat exchanger arrangement |
| NO20063166 | 2006-07-07 | ||
| PCT/NO2007/000252 WO2008004886A1 (en) | 2006-07-07 | 2007-07-02 | Heat exchanger with cooling fins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2007270121A1 true AU2007270121A1 (en) | 2008-01-10 |
| AU2007270121B2 AU2007270121B2 (en) | 2011-04-28 |
Family
ID=38894782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2007270121A Ceased AU2007270121B2 (en) | 2006-07-07 | 2007-07-02 | Heat exchanger with cooling fins |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20090314481A1 (en) |
| AU (1) | AU2007270121B2 (en) |
| GB (1) | GB2453502B (en) |
| NO (1) | NO20063166L (en) |
| WO (1) | WO2008004886A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2468920A (en) * | 2009-03-27 | 2010-09-29 | Framo Eng As | Subsea cooler for cooling a fluid flowing in a subsea flow line |
| NO333597B1 (en) * | 2009-07-15 | 2013-07-15 | Fmc Kongsberg Subsea As | underwater Dresses |
| US9127897B2 (en) | 2010-12-30 | 2015-09-08 | Kellogg Brown & Root Llc | Submersed heat exchanger |
| WO2016123340A1 (en) * | 2015-01-30 | 2016-08-04 | Bp Corporation North America, Inc. | Subsea heat exchangers for offshore hydrocarbon production operations |
| ITUB20152051A1 (en) * | 2015-07-10 | 2017-01-10 | Nuovo Pignone Srl | Submarine group |
| US9897386B2 (en) * | 2015-08-10 | 2018-02-20 | Indmar Products Company Inc. | Marine engine heat exchanger |
| DK3382312T3 (en) * | 2017-03-31 | 2019-09-16 | Abb Schweiz Ag | AN UNDERSOE HEAT EXCHANGE |
| EP3650793A1 (en) | 2018-11-08 | 2020-05-13 | Buchen KraftwerkService GmbH | Method and device for cleaning air coolers |
| CA3156783A1 (en) | 2019-11-09 | 2021-05-14 | Yun Jin | Tricycle dihydroimidazopyrimidone derivative, preparation method thereof, pharmaceutical composition and use thereof |
| RU2728094C1 (en) * | 2020-02-05 | 2020-07-28 | Общество с ограниченной ответственностью "Газпром 335" | Control method of underwater cooling intensity and underwater cooling intensity control device |
| CN115304620A (en) | 2021-05-07 | 2022-11-08 | 上海赛默罗生物科技有限公司 | Pyrimidone derivatives, preparation method, pharmaceutical composition and application thereof |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1584772A (en) * | 1923-02-17 | 1926-05-18 | Rollin M Hyde | Radiator construction |
| US1777782A (en) * | 1929-02-11 | 1930-10-07 | Bundy Tubing Co | Externally and internally finned tube and method therefor |
| US2368403A (en) * | 1941-10-21 | 1945-01-30 | United Aircraft Corp | Method of manufacturing heat radiators |
| US3112558A (en) * | 1959-03-03 | 1963-12-03 | Baldwin Lima Hamilton Corp | Finned tubing manufacture |
| US3022049A (en) * | 1959-07-10 | 1962-02-20 | Gen Electric | Heat exchange tubing |
| US3500903A (en) * | 1968-03-29 | 1970-03-17 | Arthur H Mcelroy | Heat exchange article |
| US3543843A (en) * | 1968-08-20 | 1970-12-01 | Hudson Products Corp | Air cooled condenser apparatus |
| US3693713A (en) * | 1970-07-16 | 1972-09-26 | Curtiss Wright Corp | Finned tube and method of manufacture |
| JPS55167091U (en) * | 1979-05-16 | 1980-12-01 | ||
| JPS572992A (en) * | 1980-06-06 | 1982-01-08 | Masaji Tsunohara | Manufacture of tube for heat exchanger |
| US4357989A (en) * | 1980-08-29 | 1982-11-09 | Texaco Inc. | Heat exchange circuit for an offshore installation |
| US4960170A (en) * | 1989-01-26 | 1990-10-02 | Carter James I | Finned tube and method of making the same |
| JP2004340515A (en) * | 2003-05-16 | 2004-12-02 | Usui Kokusai Sangyo Kaisha Ltd | Heat exchanger tube with internally mounted fin member and its manufacturing method |
-
2006
- 2006-07-07 NO NO20063166A patent/NO20063166L/en not_active Application Discontinuation
-
2007
- 2007-07-02 GB GB0902041A patent/GB2453502B/en not_active Expired - Fee Related
- 2007-07-02 US US12/307,716 patent/US20090314481A1/en not_active Abandoned
- 2007-07-02 WO PCT/NO2007/000252 patent/WO2008004886A1/en active Application Filing
- 2007-07-02 AU AU2007270121A patent/AU2007270121B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| GB2453502A (en) | 2009-04-08 |
| NO20063166L (en) | 2008-01-08 |
| US20090314481A1 (en) | 2009-12-24 |
| GB0902041D0 (en) | 2009-03-11 |
| AU2007270121B2 (en) | 2011-04-28 |
| GB2453502B (en) | 2011-03-16 |
| WO2008004886A1 (en) | 2008-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |