WO1999037965A1 - A heat exchanger - Google Patents
A heat exchanger Download PDFInfo
- Publication number
- WO1999037965A1 WO1999037965A1 PCT/NZ1999/000005 NZ9900005W WO9937965A1 WO 1999037965 A1 WO1999037965 A1 WO 1999037965A1 NZ 9900005 W NZ9900005 W NZ 9900005W WO 9937965 A1 WO9937965 A1 WO 9937965A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- housing
- heat exchange
- disc
- elements
- Prior art date
Links
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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
-
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0012—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the apparatus having an annular form
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
- F28F3/083—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning capable of being taken apart
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/10—Particular pattern of flow of the heat exchange media
- F28F2250/102—Particular pattern of flow of the heat exchange media with change of flow direction
Definitions
- This invention relates to a heat exchanger and more particularly a direct expansion contact heat exchanger.
- the object of the present invention is to provide a direct expansion contact heat exchanger which is of such construction that it can be readily disassembled for cleaning and/or inspection.
- a direct expansion contact heat exchanger including a plurality of inter-connected overlapping heat exchange elements removably located within a housing, said housing having inlet and outlet means to enable, in use, flow of fluid through the housing between adjacent overlapping heat exchange elements, the heat exchange elements being connectable via heat exchange medium inlet and outlet means to heat exchange medium.
- the heat exchange elements are of substantially disc shape with a sector thereof removed.
- the housing is of tubular construction with an internal diameter just greater than the external diameter of the heat exchange elements .
- the inlet and outlet means are located at opposite ends of the housing and extend transverse to the central longitudinal axis of the housing.
- the housing can be provided with end covers, plates or the like .
- Figure 1 is a sectioned elevation view of a preferred form of the heat exchanger according to the invention
- Figure 2 is a sectioned elevation view of a bank of heat exchange elements
- Figure 3 is an end view on line A-A
- Figure 4 is an elevation view in the direction of arrow C as shown in Figure 2 ,
- Figure 5 is an end view on line B-B, .
- Figure 6 is a face and edge view respectively of one disc element of a heat exchange element, and
- Figure 7 is a view similar to Figure 6 but showing the other disc element of a heat exchange element .
- the direct contact heat exchanger 10 as shown in Figure 1 comprises a tubular housing 11 in which a heat exchange bank 12 of overlapping heat exchange elements 14 is removably located. As shown in Figure 1, the cross- sectional diameter of the elements 14 is just slightly less than the internal diameter of the tubular housing 11.
- an inlet 15 and an outlet 16 Projecting in a diametrically opposite manner from opposite ends of the housing 11 are an inlet 15 and an outlet 16 having a coupling C for coupling to a conduit through which fluid to be heated/cooled can flow.
- the inlet and outlet 15 and 16 therefore extend substantially transverse to the central longitudinal axis of the housing 11.
- the ends of the housing 11 are closed by closure plates, covers or the like 17 and 17 ' .
- the heat exchange bank comprises a plurality of inter-connected heat exchange discs
- the heat exchange disc 14 adjacent end closure 17' is coupled to an inlet conduit 18 through which heat exchange medium can pass into the heat exchange bank.
- the heat exchange disc at the opposite end of the bank 12 is connected to a return conduit 19 which extends longitudinally back through the housing 11 to exit at 19 ' through end plate 17 ' .
- At least one, but preferably both end plates 17 and 17' are mounted for removal from the housing 11.
- the end covers 17 and 17' can be removed to permit the heat exchange bank 12 to be slid out of the housing 11. Consequently, the end covers 17 and 17' and the interior of the housing 11 can be cleaned and/or inspected.
- the heat exchange bank 12 can be cleaned and inspected after removal.
- the heat exchange bank 12 is comprised of a plurality of separate heat exchange elements 14 , each of which is formed by the joining of two dish shaped disc elements 20 and 21 (see Figures 6 and 7) .
- Each disc element 20 and 21 is of generally circular shape but with a sector removed to form a straight edge 22.
- the disc elements 20 and 21 are provided with a plurality of dimples 23 in a conventional manner.
- each disc element 20 and 21 is of shallow disc shape by having inwardly turned edge portions 24.
- Disc element 20 has an opening in which a stub tube 25 is mounted.
- tube 25 is located diametrically opposed from an opening 26 of disc element 21, this opening 24 being formed as part of a dome or turret 28.
- each disc element 20 and 21 is provided with a cut-out 27 in the periphery substantially opposite to the straight portion 22. This provides a clearance for the return conduit 19.
- the disc elements 20 and 21 are joined about their peripheral edges, ie the peripheral edges of the inclined portions 24 by welding or any other suitable means .
- the thus formed heat exchange elements 14 are joined together as shown in Figures 1, 2 and 4 by a tubular projection 25 of disc 20 of one element 14 engaging into the turret opening 26 of the disc 21 of the next adjacent element 14.
- the heat exchange elements 14 when so disposed have the straight edges 22 at diametrically opposed sides of the heat exchange bank 12.
- the clearance between the straight edge 22 and the internal peripheral wall surface of the housing 11 provides a clearance or flow passage for the flow of the fluid to undergo heat exchange thereby ensuring that product flowing in through inlet 15 passes over the leading heat exchange element 14 to then pass between that and the next adjacent heat exchange element and so on until it flows out through outlet 16.
- a direct contact heat exchanger which is of a simple yet effective and efficient constructions with a heat exchange bank which can be readily removed from a housing for inspection and/or cleaning.
- the direct contact heat exchanger is thus particularly suitable for use in the food industry as hygiene issues associated with such an industry can be readily addressed.
- a bank of heat exchange elements 14 in any particular size housing may be a single bank or a number of banks joined end to end.
- the invention provides a heat exchanger which provides maximum surface area for its overall size and therefore has good efficiency characteristics .
- the heat exchanger according to the present invention is thus particularly suited for use in the in-line cooling of milk into a milk holding vat in a farm situation.
- the use of the heat exchanger is not restricted to this sole purpose.
- the amount of overlap of adjacent elements 14 can vary as can the spacing between the adjacent heat exchange elements.
- the position of the return line 19 can vary depending on requirements. While in the illustrated form the return line 19 passes along the outside edge of the heat exchange bank 12 it could equally pass back through the discs as a consequence of aligned openings through the discs .
- Other modifications will be apparent to those skilled in the art and fall within the scope of the present invention.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU20788/99A AU752390B2 (en) | 1998-01-23 | 1999-01-20 | A heat exchanger |
NZ505610A NZ505610A (en) | 1998-01-23 | 1999-01-20 | A direct expansion contact heat exchanger |
EP99901250A EP1055095A4 (en) | 1998-01-23 | 1999-01-20 | A heat exchanger |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ329629 | 1998-01-23 | ||
NZ32962998 | 1998-01-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999037965A1 true WO1999037965A1 (en) | 1999-07-29 |
Family
ID=19926598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NZ1999/000005 WO1999037965A1 (en) | 1998-01-23 | 1999-01-20 | A heat exchanger |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1055095A4 (en) |
AU (1) | AU752390B2 (en) |
WO (1) | WO1999037965A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2816044A1 (en) * | 2000-10-26 | 2002-05-03 | Barriquand Echangeurs | Heat exchanger has multipass circulation system comprising bundle of chambers, each with inlet, outlet and, apart for final chamber, return connection, all return connections being interconnectable, isolating all chambers except last |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2937311A1 (en) * | 1979-09-14 | 1981-03-26 | Hisaka Works Ltd | CAPACITOR |
GB2089961A (en) * | 1980-12-19 | 1982-06-30 | Hoesch Estel Werke Ag | Heat Exchanger Panel Connectors |
EP0062518A2 (en) * | 1981-04-03 | 1982-10-13 | John Howard Coope | Heat exchangers |
WO1991013308A1 (en) * | 1990-02-28 | 1991-09-05 | Alfa-Laval Thermal Ab | Permanently joined plate heat exchanger |
EP0677716A1 (en) * | 1994-04-12 | 1995-10-18 | Showa Aluminum Corporation | Stacked-type duplex heat exchanger |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB743772A (en) * | 1951-03-19 | 1956-01-25 | Ida Violet Dawson | Improvements in or relating to heat exchangers particularly for dairy farm apparatus |
US2932490A (en) * | 1957-04-15 | 1960-04-12 | Manus Ab | Milk strainer and cooler |
DE1837939U (en) * | 1959-04-01 | 1961-09-21 | Torsten Ramen | HEAT EXCHANGER. |
DE3536316A1 (en) * | 1985-10-11 | 1987-04-16 | Sueddeutsche Kuehler Behr | Laminated oil cooler |
JP3302869B2 (en) * | 1995-11-15 | 2002-07-15 | 株式会社荏原製作所 | Plate heat exchanger and method of manufacturing the same |
-
1999
- 1999-01-20 AU AU20788/99A patent/AU752390B2/en not_active Ceased
- 1999-01-20 EP EP99901250A patent/EP1055095A4/en not_active Withdrawn
- 1999-01-20 WO PCT/NZ1999/000005 patent/WO1999037965A1/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2937311A1 (en) * | 1979-09-14 | 1981-03-26 | Hisaka Works Ltd | CAPACITOR |
GB2089961A (en) * | 1980-12-19 | 1982-06-30 | Hoesch Estel Werke Ag | Heat Exchanger Panel Connectors |
EP0062518A2 (en) * | 1981-04-03 | 1982-10-13 | John Howard Coope | Heat exchangers |
WO1991013308A1 (en) * | 1990-02-28 | 1991-09-05 | Alfa-Laval Thermal Ab | Permanently joined plate heat exchanger |
EP0677716A1 (en) * | 1994-04-12 | 1995-10-18 | Showa Aluminum Corporation | Stacked-type duplex heat exchanger |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN; & JP 9138082 A (EBARA CORP.) 27 May 1997. * |
See also references of EP1055095A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2816044A1 (en) * | 2000-10-26 | 2002-05-03 | Barriquand Echangeurs | Heat exchanger has multipass circulation system comprising bundle of chambers, each with inlet, outlet and, apart for final chamber, return connection, all return connections being interconnectable, isolating all chambers except last |
Also Published As
Publication number | Publication date |
---|---|
EP1055095A4 (en) | 2002-11-20 |
AU752390B2 (en) | 2002-09-19 |
AU2078899A (en) | 1999-08-09 |
EP1055095A1 (en) | 2000-11-29 |
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