WO2021119466A1 - Heat exchanger component with varying twist angle - Google Patents
Heat exchanger component with varying twist angle Download PDFInfo
- Publication number
- WO2021119466A1 WO2021119466A1 PCT/US2020/064571 US2020064571W WO2021119466A1 WO 2021119466 A1 WO2021119466 A1 WO 2021119466A1 US 2020064571 W US2020064571 W US 2020064571W WO 2021119466 A1 WO2021119466 A1 WO 2021119466A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- component
- spirals
- twist angle
- spiral
- Prior art date
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 12
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 9
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 230000037361 pathway Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 11
- 230000020169 heat generation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000001172 regenerating effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 238000009432 framing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- HYIMSNHJOBLJNT-UHFFFAOYSA-N nifedipine Chemical compound COC(=O)C1=C(C)NC(C)=C(C(=O)OC)C1C1=CC=CC=C1[N+]([O-])=O HYIMSNHJOBLJNT-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/04—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being spirally coiled
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/026—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled and formed by bent members, e.g. plates, the coils having a cylindrical configuration
-
- 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
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
- F28D21/001—Recuperative heat exchangers the heat being recuperated from exhaust gases for thermal power plants or industrial processes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/04—Constructions of heat-exchange apparatus characterised by the selection of particular materials of ceramic; of concrete; of natural stone
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
- F28D7/12—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically the surrounding tube being closed at one end, e.g. return type
-
- 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
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/04—Assemblies of fins having different features, e.g. with different fin densities
Definitions
- the present disclosure is directed to a component for a heat exchanger comprising a body including a ceramic.
- the body can contain a plurality of spirals extending around a central cavity of the body, wherein a twist angle of each spiral in relation to the length direction of the body is varying.
- the component for a heat exchanger of the present disclosure can be adapted as an insert for use in a radiant U or W tube as typically used, for example, for steel annealing, coating, or heat treating furnaces.
- a particular use of the heat exchanger insert of the present disclosure can be for large diameter heat exchangers to recover waste energy.
- the term “component for a heat exchanger” is interchangeable used with the term “heat exchanger insert.”
- a portion of the heated air reaching the proximal end (18) of the heat exchanger can be used for mixing with fuel gas and be provided to a burner (not shown), while another portion of the heated air may be returned and directed through the central cavity (13) surrounded by the center tube (12) as the third flow path.
- all the heated air (15B) can be returned at the proximal end (18) of the heat exchanger and may flow through the central cavity (13) of the tube (12) back to the distal end (19) and leave the heat exchanger for further use.
- each spiral of the plurality of spirals can comprise at least 2 turns per meter in a length direction of the body, such as at least 3 turns per meter or at least 4 turns per meter or at least 5 turns per meter or at least 6 turns per meter or at least 7 turns per meter.
- the amount of turns per meter of each spiral may be not greater than 10 turns per meter, such as not greater than 9 turns per meter or not greater than 8 turns per meter.
- the amount of turns per meter of each spiral can within a range including any of the minimum and maximum numbers note above.
- Embodiment 3 The component for a heat exchanger of Embodiment 2, further comprising a plurality of intraspiral channels contained within the plurality of spirals.
- the plurality of spirals includes at least 4 spirals, such as at least 6 spirals, at least 8 spirals, at least 10 spirals, or at least 12 spirals.
- Embodiment 16 The component for a heat exchanger of Embodiment 15, wherein the plurality of spirals includes at least 10 spirals.
- Embodiment 17 The component for a heat exchanger of any one of Embodiments 2 to 15, wherein the plurality of spirals includes not more than 12 spirals.
- Embodiment 19 The component for a heat exchanger of any of one Embodiments 2 to
- each spiral of the plurality of spirals comprises at least 2 turns per meter in a length direction of the body, such as at least 3 turns per meter, at least 4 turns per meter, or at least 5 turns per meter, or at least 6 turns per meter, or at least 7 turns per meter.
- Embodiment 20 The component for a heat exchanger of any one of Embodiments 2 to
- an average wall thickness of the tube surrounding the central cavity is at least lmm, or at least 1.5 mm, or at least 2 mm, or at least 3 mm, or at least 4 mm.
- an average wall thickness of the tube surrounding the central cavity is and not greater than 5 mm, or not greater than 4.5 mm, or not greater than 4 mm, or not greater than 3.5 mm.
- an average thickness of each intraspiral channel of the plurality of intraspiral channels is at least 3 mm, or at least 5 mm, or at least 10 mm, or at least 15 mm, or at least 20 mm, or at least 25 mm, or at least 30 mm, or at least 40 mm.
- Embodiment 27 The component for a heat exchanger of any one of Embodiments 2 to
- an average cross-sectional surface area of each intraspiral channel of the plurality of intraspiral channels can be not greater than 1470 mm 2 , or not greater than 1450 mm 2 , or not greater than 1400 mm 2 , or not greater than 1300 mm 2 .
- Embodiment 32 The component for a heat exchanger of any one of Embodiments 2 to
- Embodiment 41 A heat exchanger comprising the component of a heat exchanger of any one of the preceding Embodiments, wherein the heat exchanger is adapted that a pressure drop during operation is not greater than 5 kPa, such as not greater than 4kPa, or not greater than 3 kPa.
- Embodiment 42 A heat exchanger comprising the component of a heat exchanger of any one of the preceding Embodiments, wherein the heat exchanger is adapted for conducting a fluid flow of a gas, a liquid, or a combination thereof.
- Embodiment 43 The heat exchanger of Embodiment 42, wherein the heat exchanger is adapted for conducting a gas flow.
- Embodiment 44 The heat exchanger of any one of Embodiments 41 to 43, wherein the heat exchanger comprises three flow pathways.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022535690A JP2023506006A (en) | 2019-12-12 | 2020-12-11 | Heat exchanger components with varying helix angles |
KR1020227021630A KR20220100072A (en) | 2019-12-12 | 2020-12-11 | Heat exchanger components with various torsion angles |
EP20900245.0A EP4073448A4 (en) | 2019-12-12 | 2020-12-11 | Heat exchanger component with varying twist angle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201962947306P | 2019-12-12 | 2019-12-12 | |
US62/947,306 | 2019-12-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021119466A1 true WO2021119466A1 (en) | 2021-06-17 |
Family
ID=76316740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2020/064571 WO2021119466A1 (en) | 2019-12-12 | 2020-12-11 | Heat exchanger component with varying twist angle |
Country Status (5)
Country | Link |
---|---|
US (1) | US20210180870A1 (en) |
EP (1) | EP4073448A4 (en) |
JP (1) | JP2023506006A (en) |
KR (1) | KR20220100072A (en) |
WO (1) | WO2021119466A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060023299A (en) * | 2004-09-09 | 2006-03-14 | 노홍조 | A heat exchanger |
US20080210402A1 (en) * | 2005-03-09 | 2008-09-04 | Kelix Heat Transfer Systems, Llc. | Method of incrasing the rate of heat energy transfer between a heat exchanging subsystem above the surface of the earth and material therebeneath using a coaxial-flow heat exchanging structure generating turbulence along the outer flow channel thereof |
US20090242184A1 (en) * | 2007-01-31 | 2009-10-01 | Shi Mechanical & Equipment Inc. | Spiral Tube Fin Heat Exchanger |
US20130192804A1 (en) * | 2012-02-01 | 2013-08-01 | Sumitomo Light Metal Industries, Ltd. | Double pipe for heat exchanger |
KR20160134131A (en) * | 2015-05-14 | 2016-11-23 | 주식회사 하나 | Heat exchanger using turn-fin |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB787010A (en) * | 1956-08-31 | 1957-11-27 | Wellman Smith Owen Eng Co Ltd | Improvements in or relating to furnace recuperators or like recuperative heat exchangers |
US4589844A (en) * | 1984-07-25 | 1986-05-20 | Advanced Combustion Inc. | Heat exchange apparatus for industrial furnaces |
JP3924175B2 (en) * | 2002-02-06 | 2007-06-06 | 株式会社神戸製鋼所 | Steam superheater |
JP6790554B2 (en) * | 2016-07-28 | 2020-11-25 | 大同特殊鋼株式会社 | Radiant tube type heating device |
-
2020
- 2020-12-11 EP EP20900245.0A patent/EP4073448A4/en active Pending
- 2020-12-11 WO PCT/US2020/064571 patent/WO2021119466A1/en unknown
- 2020-12-11 US US17/119,561 patent/US20210180870A1/en active Pending
- 2020-12-11 JP JP2022535690A patent/JP2023506006A/en active Pending
- 2020-12-11 KR KR1020227021630A patent/KR20220100072A/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060023299A (en) * | 2004-09-09 | 2006-03-14 | 노홍조 | A heat exchanger |
US20080210402A1 (en) * | 2005-03-09 | 2008-09-04 | Kelix Heat Transfer Systems, Llc. | Method of incrasing the rate of heat energy transfer between a heat exchanging subsystem above the surface of the earth and material therebeneath using a coaxial-flow heat exchanging structure generating turbulence along the outer flow channel thereof |
US20090242184A1 (en) * | 2007-01-31 | 2009-10-01 | Shi Mechanical & Equipment Inc. | Spiral Tube Fin Heat Exchanger |
US20130192804A1 (en) * | 2012-02-01 | 2013-08-01 | Sumitomo Light Metal Industries, Ltd. | Double pipe for heat exchanger |
KR20160134131A (en) * | 2015-05-14 | 2016-11-23 | 주식회사 하나 | Heat exchanger using turn-fin |
Non-Patent Citations (1)
Title |
---|
See also references of EP4073448A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP4073448A1 (en) | 2022-10-19 |
EP4073448A4 (en) | 2023-12-13 |
JP2023506006A (en) | 2023-02-14 |
KR20220100072A (en) | 2022-07-14 |
US20210180870A1 (en) | 2021-06-17 |
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