EP0055711A1 - Low profile heat exchanger and method of making the same. - Google Patents
Low profile heat exchanger and method of making the same.Info
- Publication number
- EP0055711A1 EP0055711A1 EP81900865A EP81900865A EP0055711A1 EP 0055711 A1 EP0055711 A1 EP 0055711A1 EP 81900865 A EP81900865 A EP 81900865A EP 81900865 A EP81900865 A EP 81900865A EP 0055711 A1 EP0055711 A1 EP 0055711A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- group
- fluid passages
- heat exchanger
- passages
- 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
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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
-
- 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
- F28D9/0025—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 being formed by zig-zag bend plates
Definitions
- Figure 4 is a diagrammatic illustration of a side view of a pleated assembly of the present inven ⁇ tion
- Figure 5 is a diagrammatic illustration of an end view of a pleated assembly of the present inven ⁇ tion
- Figure 6 is a cross sectional view of the heat exchanger module of the present invention
- Figure 7 is a diagrammatic illustration of an end view of the heat exchanger of the present invention
- Figure 8 is a plan view of a portion of a single sheet of heat exchange material of a second embodi ⁇ ment of the present invention
- Figure 9 is a view in side elevation of the single sheet of the embodiment of Figure 8;
- Figure 12 is a diagrammatic illustration of the method of producing the embodiment of Figure 11.
- Figure 1 illustrates a single sheet used to form one of the pleated assemblies of the heat exchanger module of the present invention.
- the single sheet indicated generally at 10, is a long rectangular strip of heat exchange material, for example a suit ⁇ able thin metal, such as heat resistant steel.
- the width of the sheet 10 indicated at 12 determines the length of the resulting pleated assembly, and may be varied by the designer to fit the desired heat exchanger application.
- the longitudinal edges of the sheet are serrated' or cut in a sawtooth pattern so that the distance 14 between notches 16 is about equal to the desired height of the pleated assembly.
- the pleated assembly is formed in a manner de- picted in Figures 2 and 3 or 2' and 3.
- the serrated sheet of heat exchange material 10 is divided into sections or walls 22 and 24 whcih are embossed by means of conventional dies, shaped rollers or any other embossing techniques;.
- the embossing serves to separate the subsequently formed pleats of the heat exchanger accurately and to guide the fluid flow through the completed heat exchanger.
- the em ⁇ bossing may space the pleats for a distance of about .030 inches.
- each section 22 and 24 may be embossed in a U-shaped or Z-shaped configuration respectively as shown by the rows of bosses 26 on section 22 and the rows of bosses 28 on section 24. While only four rows of bosses 26 and four rows of bosses 28 are shown, the number of rows could be much higher and is limited only by the size of the sections 22 and 24.
- Fluid flow channels 27 are defined on ' the face of each section 22 and 24 between the rows of bosses 26 and 28. The interruptions between bosses in a row induce fluid turbulence in the flow path defined thereby and thus enhance the heat transfer characteristics of the pleated assembly formed from the sheet 10.
- the sheet 10 will be pleated into a pleated assembly which forms part of the core of the heat exchanger module depicted in Figure 6, it is necessary to emboss the sheet so that the pleats are spaced far enough apart to allow fluid flow between them. This is accomplished by embossing sections 22 and 24 in opposite directions. Thus in Figure 2, the bosses 26 on section 22 project upwardly, while the bosses 28 on section 24 project downwardly. This alternate arrangement is maintained throughout the
- the sheet 10 is pleated by folding it along lines or crest portions 34 between the sections or walls 22 and 24.
- Pleat- ing may be accomplished mechanically in any conven ⁇ tional manner, such as on machines utilizing dull- edged knife blades like those used for pleating filter paper in the manufacture of air cleaners and oil fil ⁇ ters, but which have been modified to pleat thin metal or heat exchange material rather than paper.
- Figure 3 shows the embossed sheet 10 being pleated and compressed at the lower end 36 to form the pleated assembly shown in Figure 4.
- the sections 22 and 24 of the sheet are compressed together until the raised bosses 26 and 28 contact the next adjacent section of the sheet.
- the height of such bosses accurately controls the spacing between adjacent sections when the sheet 10 is pleated and compressed.
- the heat exchanger module 46 of the present invention may be formed by stacking at least two pleated assemblies 38 within a housing 48 as shown in Figure 6.
- the upper pleated assembly 38a is placed over the lower pleated assembly 38b with a spacer 50 between them.
- the spacer 50 is essentially either a solid sheet or a mesh or perforated strip and is shown extending along the entire length of line 34 between sections of the pleated assemblies from point 52 to point 54. However, the spacer 50 may be placed so that it stops short of points 52 and 54.
- edges 20 It is possible, by varying the thickness and the length of the spacer 50, to reduce fluid flow blockage be ⁇ yond the reduction achieved by means of the fluid entry ramps defined by edges 20. As previously men ⁇ tioned in discussing Figure 1, the length of edges 20 should be equal to pleat depth 14 to minimize fluid flow blockage. Although the ramps are shown to be straight, longer ramps may be achieved within the same dimensions by curving edges 20, thus length ⁇ ening the ramps while maintaining the compactness of the unit.
- Hot and cold fluid manifolds are attached to the ends of the two stacked pleated assemblies as shown in Figure 6, and result in a low profile heat exchanger.
- Inlet manifolds 56 provide hot fluid, for example hot exhaust gas from a gas turbine, through fluid passages 58. This hot fluid follows the path shown by the white arrows 58 to outlet manifolds 60 which collect the previously hot fluid after heat has been transferred therefrom in the heat exchanger ⁇ ore. Since the heat exchanger of the present inven ⁇ tion is a counterflow type heat exchanger, cool fluid, as, for example air from the compressor of a gas turbine engine, is supplied to the path shown by arrows 64 by a cool fluid inlet manifold 62.
- FIG. 7 illustrates an end view of the heat exchanger module 46 used as a recuperator for re ⁇ ceiving hot exhaust gas and compressed air from a gas turbine engine.
- Hot gas input manifolds 56 are at the top and bottom and the hot combustion air output manifold 66 is in the center. Hot gas flows in alternate passages 58 while air to be heated flows in the opposite direction through the intermediate passages 64.
- the housing 48 closes the open ends of the passages 58.
- FIG. 8 A second embodiment of the present invention is diagrammatically shown in Figures 8, 9, and 10.
- Heat exchanger sheet material 72 which has been serrated along the longitudinal edges in the same manner as sheet 10 in Figure 1 and subsequently em ⁇ bossed, is bent between points 68 and 70 by passing it over shaped rollers, which are not shown in Figure 8, prior to pleating to form a sheet which is rippled in cross section (Figure 9).
- This structure provides flexibility to the pleats in the direction 68-70.
- Figure 10 which corresponds to Figure 3 shows the rippled sheet 72 being pleated and compressed into a bent pleated assembly 74.
- the method depicted in Figures 8, 9, and 10 results in increased flexibil ⁇ ity, not only in the pleats themselves, but also in the welded plugs 42 and 44 used to seal alternate flow passages as shown in Figures 5 and 7. Additional flexibility in the direction of sheet width 12 shown in Figure 1 can be introduced in still another embodiment of the present invention.
- the compressed pleated assembly shown at 36 in Figure 3 can be made to assume an arcuate shape or even an *S" shape, (not shown) when viewed in the direction of the crest portions or edges 34, as depicted in Figure 11.
- the sheet 10 can be treated in an al ⁇ ternate method after pleating to enhance fluid flow and flexibility * This is accomplished as shown in Figure 12.
- a pleated and compressed sheet, indi ⁇ cated generally at 76, is passed over a roller 78, which causes the pleats to separate as at 80 while remaining compressed at 82, thus allowing cams, rollers, pawls, or other suitable mechanisms to be introduced into the wide gaps at 80 to spread the pleats at edge 34 to any desired distance.
- roller 78 After passing over roller 78, the pleated and compressed sheet passes over roller 84 where the wide gaps 80 become compressed
- the heat exchanger module 46 may be effectively employed as a recuperator for a gas turbine engine or for other heat exchange applications, as, for example, in steel heat treating or melting furnaces.
- the inlet manifold 62 is connected to a source of cool fluid to be heated while the inlet manifolds 56 are connected to a source of heated fluid.
- the inlet manifolds 56 would be connected to receive hot exhaust gases from the engine while the inlet manifold 62 would be connected to receive compressor discharge air from the engine.
- the cooler discharge air passes through the pleated assemblies 38a and 38b with the counter flowing hot exhaust gas, the air is heated by the heat transfer provided by heat exchange sections 22 and 24.
- the exhaust gas then passes out of the outlet manifolds 60 and is normally vented to the atmosphere while the heated air passes to the outlet manifold 66.
- This outlet manifold is connected to the ⁇ ombustor of the gas turbine engine and proceeds on through the engine in the conventional manner.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Module d'echangeur de chaleur a profil bas (46) et son procede de fabrication consistant a former le module d'echangeur de chaleur (46) a partir d'une ou plusieurs unites de noyaux d'echangeur de chaleur de surface primaire a simple feuille (38a et 38b). Chaque unite de noyau de surface primaire a simple feuille (38a et 38b) est fabriquee a partir d'une feuille rectangulaire d'un materiau approprie d'echange de chaleur (10) qui a ete dentee le long des bords longitudinaux (18) pour former des rampes d'entree (20) et pour reduire au minimum le blocage de l'ecoulement. L'ecoulement du fluide est commande par des fermetures (42, 44) amenagees dans les extremites de passages alternes d'ecoulement (58, 64) qui servent a isoler le fluide d'un passage du fluide d'un passage adjacent.Low profile heat exchanger module (46) and its manufacturing method comprising forming the heat exchanger module (46) from one or more units of primary surface heat exchanger cores single sheet (38a and 38b). Each single sheet primary surface core unit (38a and 38b) is fabricated from a rectangular sheet of suitable heat exchange material (10) which has been slit along the longitudinal edges (18) for form inlet ramps (20) and to minimize flow blockage. The flow of the fluid is controlled by closures (42, 44) arranged in the ends of alternate flow passages (58, 64) which serve to isolate the fluid from one passage from the fluid from an adjacent passage.
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1980/000857 WO1982000194A1 (en) | 1980-07-07 | 1980-07-07 | Low profile heat exchanger and method of making the same |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0055711A1 true EP0055711A1 (en) | 1982-07-14 |
EP0055711A4 EP0055711A4 (en) | 1983-06-09 |
EP0055711B1 EP0055711B1 (en) | 1985-10-09 |
Family
ID=22154432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81900865A Expired EP0055711B1 (en) | 1980-07-07 | 1980-07-07 | Low profile heat exchanger and method of making the same |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0055711B1 (en) |
JP (1) | JPS57500945A (en) |
CA (1) | CA1140531A (en) |
DE (1) | DE3071178D1 (en) |
WO (1) | WO1982000194A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0666973A1 (en) | 1992-11-05 | 1995-08-16 | Level Holding B.V. | Heat exchanger |
DE19813119A1 (en) * | 1998-03-25 | 1999-10-07 | Inst Energetik Und Umwelt Ggmb | Turbulence heat recovery device for ventilation unit |
EP1085273A1 (en) | 1999-09-14 | 2001-03-21 | FPL Wärmerückgewinnung-Lüftung GmbH | Device and method for heat exchange |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8611667D0 (en) * | 1986-05-13 | 1986-06-18 | Mckirdy I D | Heat exchanger |
DE4333904C2 (en) * | 1993-09-27 | 1996-02-22 | Eberhard Dipl Ing Paul | Duct heat exchanger |
WO1995009338A1 (en) * | 1993-09-27 | 1995-04-06 | Eberhard Paul | Channel heat exchanger |
JPH0942869A (en) * | 1995-07-28 | 1997-02-14 | Honda Motor Co Ltd | Heat exchanger |
JPH0942867A (en) * | 1995-07-28 | 1997-02-14 | Honda Motor Co Ltd | Heat exchanger |
JPH0942865A (en) * | 1995-07-28 | 1997-02-14 | Honda Motor Co Ltd | Heat exchanger |
AUPN697995A0 (en) * | 1995-12-04 | 1996-01-04 | Urch, John Francis | Metal heat exchanger |
JP3685890B2 (en) * | 1996-10-17 | 2005-08-24 | 本田技研工業株式会社 | Heat exchanger |
JPH10122768A (en) * | 1996-10-17 | 1998-05-15 | Honda Motor Co Ltd | Heat exchanger |
CA2269058C (en) * | 1996-10-17 | 2003-04-15 | Honda Giken Kogyo Kabushiki Kaisha | Heat exchanger |
BR9712534A (en) * | 1996-10-17 | 1999-10-19 | Honda Motor Co Ltd | Heat exchanger |
WO1998033030A1 (en) * | 1997-01-27 | 1998-07-30 | Honda Giken Kogyo Kabushiki Kaisha | Heat exchanger |
GB9719199D0 (en) * | 1997-09-10 | 1997-11-12 | Advanced Design & Mfg Ltd | Heat recovering ventilator system |
US6186223B1 (en) | 1998-08-27 | 2001-02-13 | Zeks Air Drier Corporation | Corrugated folded plate heat exchanger |
FR2913765B1 (en) * | 2007-03-16 | 2012-08-10 | Pierre Vironneau | FLUID CIRCULATION TABLE, METHOD FOR MAKING SUCH A TABLET AND USE OF SUCH PANELS FOR PRODUCING A HEAT EXCHANGER |
US20130056186A1 (en) * | 2011-09-06 | 2013-03-07 | Carl Schalansky | Heat exchanger produced from laminar elements |
DE102016015125A1 (en) * | 2016-12-19 | 2018-06-21 | Menk Apparatebau Gmbh | Slat arrangement and heat exchanger |
US11035626B2 (en) * | 2018-09-10 | 2021-06-15 | Hamilton Sunstrand Corporation | Heat exchanger with enhanced end sheet heat transfer |
GB2604380A (en) * | 2021-03-04 | 2022-09-07 | Energy Recovery Ind Corporation Ltd | An air to air counter flow heat exchanger |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1409520A (en) * | 1920-05-08 | 1922-03-14 | Bird John | Cooling, heating, and ventilating apparatus |
GB351984A (en) * | 1930-03-25 | 1931-06-25 | Calvert & Co Ab | Improvements in air preheaters and like surface apparatus for the exchange of heat between two fluids |
GB429858A (en) * | 1934-06-07 | 1935-06-07 | Curt Fredrik Rosenblad | Improvements in plate heat-exchangers for fluids and the manufacture thereof |
GB529037A (en) * | 1939-04-11 | 1940-11-13 | Edwin Watkinson | Improvements in or relating to plate heat exchangers suitable for heating air |
GB616184A (en) * | 1945-06-21 | 1949-01-18 | Philips Nv | Improvements in heat exchangers |
US2782009A (en) * | 1952-03-14 | 1957-02-19 | Gen Motors Corp | Heat exchangers |
DE2523151A1 (en) * | 1974-05-27 | 1976-04-22 | Juha Hakotie | Heat exchanger with thin walled channels - has thin material strips folded over support rods forming parallel channels (SW221275) |
FR2315674A1 (en) * | 1975-06-27 | 1977-01-21 | Ferodo Sa | IMPROVEMENTS TO PLATE HEAT EXCHANGERS |
DE2826343A1 (en) * | 1977-06-17 | 1979-01-04 | Nordstjernan Rederi Ab | Heat exchanger for gases, pref. for air - is folded from ribbed aluminium or plastics strip with staggered flow paths |
GB2059567A (en) * | 1979-07-27 | 1981-04-23 | Gavioli G | Direct heat exchanger between two gases |
EP0040890A1 (en) * | 1980-05-22 | 1981-12-02 | Aernoud Rudolf Könings | Device for treating a fluid and method of making the same |
GB2079437A (en) * | 1980-01-14 | 1982-01-20 | Caterpillar Tractor Co | Low stress heat exchanger and method of making the same |
US4343355A (en) * | 1980-01-14 | 1982-08-10 | Caterpillar Tractor Co. | Low stress heat exchanger and method of making the same |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2321110A (en) * | 1936-08-25 | 1943-06-08 | Servel Inc | Heat exchanger |
US2953110A (en) * | 1954-01-22 | 1960-09-20 | W J Fraser & Co Ltd | Reciprocally folded sheet metal structures |
US3148442A (en) * | 1960-02-12 | 1964-09-15 | Jr John R Gier | Method of making a pin fin assembly with bonded cross tie members |
FR1272343A (en) * | 1960-10-27 | 1961-09-22 | Gkn Group Services Ltd | Improvements to heat exchangers |
US3552488A (en) * | 1968-12-27 | 1971-01-05 | Pall Corp | Plate-fin heat exchanger |
US3866674A (en) * | 1973-10-01 | 1975-02-18 | Gen Electric | Gas turbine regenerator |
FR2267532A1 (en) * | 1974-04-09 | 1975-11-07 | Leloup Robert | Double flow heat recuperator - uses first stream to contact even numbered sections, and second stream contacts odd sections |
US4116271A (en) * | 1975-02-04 | 1978-09-26 | Guido Amandus De Lepeleire | Counter-current bumped plates heat exchanger |
-
1980
- 1980-07-07 DE DE8181900865T patent/DE3071178D1/en not_active Expired
- 1980-07-07 WO PCT/US1980/000857 patent/WO1982000194A1/en active IP Right Grant
- 1980-07-07 JP JP81501291A patent/JPS57500945A/ja active Pending
- 1980-07-07 EP EP81900865A patent/EP0055711B1/en not_active Expired
-
1981
- 1981-03-17 CA CA000373159A patent/CA1140531A/en not_active Expired
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1409520A (en) * | 1920-05-08 | 1922-03-14 | Bird John | Cooling, heating, and ventilating apparatus |
GB351984A (en) * | 1930-03-25 | 1931-06-25 | Calvert & Co Ab | Improvements in air preheaters and like surface apparatus for the exchange of heat between two fluids |
GB429858A (en) * | 1934-06-07 | 1935-06-07 | Curt Fredrik Rosenblad | Improvements in plate heat-exchangers for fluids and the manufacture thereof |
GB529037A (en) * | 1939-04-11 | 1940-11-13 | Edwin Watkinson | Improvements in or relating to plate heat exchangers suitable for heating air |
GB616184A (en) * | 1945-06-21 | 1949-01-18 | Philips Nv | Improvements in heat exchangers |
US2782009A (en) * | 1952-03-14 | 1957-02-19 | Gen Motors Corp | Heat exchangers |
DE2523151A1 (en) * | 1974-05-27 | 1976-04-22 | Juha Hakotie | Heat exchanger with thin walled channels - has thin material strips folded over support rods forming parallel channels (SW221275) |
FR2315674A1 (en) * | 1975-06-27 | 1977-01-21 | Ferodo Sa | IMPROVEMENTS TO PLATE HEAT EXCHANGERS |
DE2826343A1 (en) * | 1977-06-17 | 1979-01-04 | Nordstjernan Rederi Ab | Heat exchanger for gases, pref. for air - is folded from ribbed aluminium or plastics strip with staggered flow paths |
GB2059567A (en) * | 1979-07-27 | 1981-04-23 | Gavioli G | Direct heat exchanger between two gases |
GB2079437A (en) * | 1980-01-14 | 1982-01-20 | Caterpillar Tractor Co | Low stress heat exchanger and method of making the same |
US4343355A (en) * | 1980-01-14 | 1982-08-10 | Caterpillar Tractor Co. | Low stress heat exchanger and method of making the same |
EP0040890A1 (en) * | 1980-05-22 | 1981-12-02 | Aernoud Rudolf Könings | Device for treating a fluid and method of making the same |
Non-Patent Citations (1)
Title |
---|
See also references of WO8200194A1 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0666973A1 (en) | 1992-11-05 | 1995-08-16 | Level Holding B.V. | Heat exchanger |
DE19813119A1 (en) * | 1998-03-25 | 1999-10-07 | Inst Energetik Und Umwelt Ggmb | Turbulence heat recovery device for ventilation unit |
EP1085273A1 (en) | 1999-09-14 | 2001-03-21 | FPL Wärmerückgewinnung-Lüftung GmbH | Device and method for heat exchange |
Also Published As
Publication number | Publication date |
---|---|
JPS57500945A (en) | 1982-05-27 |
EP0055711A4 (en) | 1983-06-09 |
CA1140531A (en) | 1983-02-01 |
DE3071178D1 (en) | 1985-11-14 |
WO1982000194A1 (en) | 1982-01-21 |
EP0055711B1 (en) | 1985-10-09 |
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