EP1134536A2 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP1134536A2
EP1134536A2 EP01200685A EP01200685A EP1134536A2 EP 1134536 A2 EP1134536 A2 EP 1134536A2 EP 01200685 A EP01200685 A EP 01200685A EP 01200685 A EP01200685 A EP 01200685A EP 1134536 A2 EP1134536 A2 EP 1134536A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
ducts
metal plate
series
duct
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.)
Withdrawn
Application number
EP01200685A
Other languages
German (de)
English (en)
Other versions
EP1134536A3 (fr
Inventor
Adriaan Teunissen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1134536A2 publication Critical patent/EP1134536A2/fr
Publication of EP1134536A3 publication Critical patent/EP1134536A3/fr
Withdrawn legal-status Critical Current

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    • 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

  • the invention relates to a heat exchanger.
  • Heat exchangers are particularly used in so-called convector heatings, but also as coolers in which a flow of outside air cools a flow of air circulating in an installation. In this case direct access of outside air in an installation is undesirable.
  • heat exchangers are constructed from very many parts. As a result, such heat exchangers are difficult to make, expensive, and vulnerable. Moreover, plate material that is thicker than strictly necessary, is often used as a result. This is disadvantageous for the heat exchanging properties. The quicker heat can be exchanged, the smaller the heat exchanger can after all be.
  • the heat exchanger according to the invention can also provide in a heat exchanger that is simple to manufacture in complex shapes and variable dimensions.
  • the invention provides a heat exchanger provided with a series of first and a series of second fluid ducts that are in heat exchanging contact with each other, in which the ducts are bounded by circumferential walls comprising duct partitions and duct side walls, in which the heat exchanger is formed by means of folding substantially one metal plate into a packet of ducts having four sides, in which the duct side walls form opposite first and second sides of the heat exchanger and every other one respectively is provided with first and second passages, respectively, for access to the ducts of the first and second series of ducts, respectively, and in which the first series of ducts is closed off at the third side by means of folded down wall members of the duct partitions and is open at the fourth side and the second series of ducts is closed off at the fourth side by means of folded down wall members of the duct partitions and is open at the third side.
  • the passage of a duct is situated near the side of said duct that is closed off by means of folded down wall members.
  • the possibility is provided that fluid can flow almost in counterflow through two series of ducts, as a result of which an improved heat exchange can arise.
  • the ducts of the first series of ducts and the ducts of the second series of ducts are ranged in turns.
  • the heat exchanger according to the invention preferably is made of a metal plate that is folded in a concertina manner. This is preferably done in such a manner that an almost equal intermediate space arises between each duct partition and the duct partitions are each positioned almost parallel with respect to each other.
  • the metal plate preferably is provided with each time two parallel folding lines between two duct partitions.
  • the distance between the two folding lines preferably is larger than the distance between the duct partitions.
  • the metal plate from which the heat exchanger is made preferably is strip-shaped.
  • the heat exchanger according to the present invention is folded from a metal plate provided with trough-shaped sections over the width of the metal plate, in turns at the bottom side and the top side projecting from the plane of the metal plate. And to necessitate as few finishing treatments as possible it is preferred here that the trough-shaped sections have a substantially level bottom. As a result the connecting parts between the folding lines form a straight side and the remaining bottom parts a level and tight connection and sealing of the ducts. More preferably the trough-shaped sections are boat-shaped in cross-section.
  • the metal plate preferably is provided with folding lines within the trough-shaped sections, more preferably the folding lines have been arranged in the level bottom of the trough-shaped sections. More preferably the level bottom is wider than the distance between the folding lines.
  • the folding lines consist of continuous wedge-shaped grooves.
  • a first fluid running through the conduit preferably at last two pipes, preferably for a reciprocally running flow of first fluid, then either absorbs or gives off heat quickly by means of the duct partitions to a second fluid that is present outside of the pipes between the plates.
  • the second fluid then preferably is air, the first fluid preferably water.
  • Such a heat exchanger preferably forms a part of a convector element, possibly combined with several of such heat exchangers. It may be possible to couple a number of such convector elements into one convector heating element.
  • the duct partitions form sides of the fluid ducts.
  • the ducts Preferably the ducts form at last a series of first ducts and a series of second ducts. As a result a very compact heat exchanger is created.
  • the series of first ducts are connected to a first fluid source, and the series of second ducts are connected to a second fluid source, and more preferably the series of first ducts and the series of second ducts are in heat exchanging contact with each other. As a result a very efficient heat exchange takes place.
  • each duct of the first series of ducts is provided with first inlets for the first fluid and first outlets
  • each duct of the second series of ducts is provided with second inlets for the second fluid and second outlets.
  • the inlets are perpendicular to the outlets, as a result of which a compact structure becomes possible.
  • the first series of ducts at the bottom side and the second series of ducts at the top side are closed off by means of folded down wall members, in which preferably the wall members are integrally formed with the metal plate, more preferably the wall members are integrally formed with the metal plate at the long side of the strip-shaped metal plate.
  • the wall members are integrally formed with the metal plate, more preferably the wall members are integrally formed with the metal plate at the long side of the strip-shaped metal plate.
  • the trough-shaped sections between the two parallel folding lines are provided with first and second inlets or outlets, preferably the first inlets are situated in the trough-shaped sections that project at the one side from the plane of the metal plate, and the second inlets are situated in the trough-shaped sections that project at the other side of the same metal plate. More preferably the first inlets are situated at one side of the longitudinal axis of the metal plate, and the second inlets are situated at the other side of the longitudinal axis of the metal plate.
  • the invention relates to a method for making a heat exchanger according to one or more of the above-mentioned embodiments, in which at at least one edge of a metal plate wall members are arranged, the wall members are folded out of the plane of the plate, the plate is provided with channel sections provided with folding lines in the channel sections, in which the plate is subsequently folded into a heat exchanger over the folding lines.
  • the metal plate is cut in at at least one edge in which the cuts bound the wall members. More preferably plate material is taken away at two opposite sides so that wall members are created at opposite sides.
  • the wall members are substantially folded perpendicular to the metal plate. In this manner the heat exchanger can be formed in almost one process course and merely the finishing is needed.
  • the trough-shaped sections and folding lines are arranged over the full width of the metal plate alternatingly at the one side and at the other side of the metal plate, in which after folding up the wall members, the sides of the heat exchanger are dipped into a glue in order to seal off the remaining seams.
  • a described heat exchanger is for instance used in cooling electronics, or the discharge of produced excess heat. In such a use it may be undesirable that outside air, full of dust and the like, directly enters the installation.
  • a simple and often chosen solution for this is to let the air circulate within the installation, and at some moment in time bringing this air in heat exchanging contact with relatively cool or cooler flow of outside air, without letting said outside air directly enter the installation.
  • This principle is a possibility for the housing of computers, even desktop computers.
  • the heat exchanger is arranged then in the electronics housing in a manner in which the passages of the first ducts and the open sides of the first ducts are connected to the inside of the electronics housing and the passages of the second ducts and the open sides of the second ducts debouch outside the electronics housing. In this way a simple mounting is possible in a cheap manner.
  • the invention regards a heat exchanger provided with a first series of rectangular ducts for a first fluid and a second series of rectangular ducts for a second fluid, in which the ducts of the first and second series of ducts are ranged in turns and are in heat exchanging contact, and the ducts are bounded by duct partitions, in which the duct partitions are connected by means of connection members that are formed as one unity with it.
  • adjacent or neighbouring ducts have duct partitions in common, i.e. one duct partition forms the wall of two adjacent ducts.
  • FIG. 1 shows a front view of a heat exchanger 1 according to the invention.
  • two series of ducts can be seen in which the first series at the one side is closed off by means of folded down wall members 7'.
  • the second series of ducts is opened at this side and comprises inlets 9'.
  • the side of the heat exchanger is formed by the bottom side 5 of the trough-shaped sections, said side members are bounded by folding lines 3.
  • outlets 8 of the ducts that are closed off by means of wall members 7' can also be seen.
  • the first and second series of ducts form a packet of ducts having four sides a, b, c and d.
  • the duct side walls 5 of the first series of ducts are provided with passages 8 and together form the first side a of the heat exchanger 1.
  • the open end of the first ducts is situated in the fourth side d that is not visible of the heat exchanger.
  • a first fluid flows (indicated by arrow e) into the first ducts, and via the open side of the ducts at the fourth side d that is not visible out of the heat exchanger (arrow f) at the fourth side d of the heat exchanger.
  • the first ducts are closed off by means of the folded down wall members 7 at the third side b of the heat exchanger.
  • a second fluid flows into the second ducts and is indicated by arrow e'. Said fluid flows (indicated by arrow f') out of the heat exchanger 1 via the open side in the third side b of the heat exchanger.
  • the second ducts are (not visible in this figure) closed off by means of folded down wall members at the fourth side d of the heat exchanger.
  • the two flows run more or less crosswise.
  • FIG 2 a rear view of the heat exchanger of figure 1 can be seen.
  • the second series of ducts is closed off by means of folded down wall members 7 and the first series of ducts is opened by means of inlets 9.
  • the side of the heat exchanger is formed by the bottom side of the trough-shaped sections 5 that are bounded by the folding lines 3.
  • the outlets or passages 8' as well are present in the sides.
  • the duct partitions are equidistant and substantially parallel.
  • Figure 3 shows a top view an below it a side view of a strip-shaped metal plate, from which the heat exchanger can be made.
  • the axial line A is shown.
  • the trough-shaped sections 4 have been arranged and parts have been taken away at the sides of the strip-shaped metal plate as a result of which wall members 10 have been formed.
  • the trough-shaped sections 4 in turns extend below the plate surface and extend above the plate surface. It can also be seen that in the bottom 5 of the trough-shaped sections 4 the folding lines 3 have been arranged.
  • Said folding lines have been arranged over the full length of the trough-shaped sections 4 and have been formed like wedge-shaped or V-shaped grooves in the plate material.
  • first outlets 8 and the second outlets 8' have alternatingly been arranged at either side of the axial line A.
  • the total width of the trough-shaped sections 4 is also indicated with the help of a figure 8, and the level bottom of the trough-shaped sections 4 is indicated by the figure 5.
  • the folding lines 3 are situated in the level part of bottom 5 of the trough-shaped sections 4.
  • the metal plate In order to fold the strip-shaped metal plate into a heat exchanger, the metal plate only has to be stopped at the end of the metal plate and the rest of the metal plate has to be moved on. As a result the metal plate folds concertina-wise over the folding lines 3, each time upwards and downwards.
  • the wall members 10 Before folding the strip-shaped metal plate into a heat exchanger first the wall members 10 have to be folded out of the plane of the strip-shaped metal plate.
  • a small wall member 10 for instance has to be folded downwards, the two longer wall members 10 following it also have to be folded downwards, the following short wall member 10 has to be folded upwards, the following long wall members 10 have to folded upwards at one side and so on.
  • the strip-shaped metal plate At the other side of the strip-shaped metal plate the same has to take place in a staggered way with respect to the first side.
  • the wall members 10 When the strip-shaped metal plate has been folded into a heat exchanger, the wall members 10 in turns close off the ducts formed on either side.
  • Figure 4 shows an enlargement of a side of a strip-shaped metal plate of figure 3.
  • the folding lines 3 are clearly indicated here, which folding lines are situated within the level bottom 5 of the trough-shaped sections 4 and the total channel width 8.
  • FIG 3 shows that each time one small wall member and two longer wall members have been formed in turns and at the other edge of the strip-shaped metal plate the same staggering has taken place.
  • FIG 5 shows a top view of the heat exchanger of figure 1 in detail. It can clearly be seen here that the heat exchanger is formed out of one strip-shaped metal plate.
  • the metal plate is folded over the folding lines 3.
  • the duct partitions 2 are parallel and equidistantly oriented.
  • the wall members 10 are folded perpendicular to the duct partitions 2 as a result of which every other one of them closes off a duct. Each time the other duct is opened via outlet 8.
  • the folding line has been made wedge-shaped or V-shaped in the metal plate as a result of which a neat wall is created when folding. Said fold has not been made entirely through the metal plate, otherwise the metal plate would break during folding.
  • figure 5a it is schematically shown how a heat exchanger is folded out of one plate by the drawing the abutting parts separate from each other.
  • FIG. 6 shows an alternative embodiment of a heat exchanger according to the invention, here a metal plate is folded such that it resembles battlements and integrally formed wall members 10 have been folded down in order to each time close off a duct at one side. At the other side the same has happened with the adjacent duct.
  • a heat exchanger is also formed in a simple way.
  • FIG. 7 shows a use of a heat exchanger according to the invention in a electronics housing which is closed off to the outside air.
  • the heat exchanger is placed in a separate housing 15 provided with inlet grids for internal air of the electronics housing 18 and inlet grids 17 for the outside air.
  • Said separate housing 15 is also provided with outlets 8.
  • By means of air movement devices such as fans or the like, the air is urged into grids 8. The air is therefore able to circulate internally in the electronics housing 16 without contacting the outside air. As a result for instance no dust will get into the electronics housing.
  • Figure 8 shows a heat exchanger in which conduits 12, perpendicular to the duct partitions, are guided perpendicularly through the duct partitions and in heat exchanging contact therewith.
  • a convector element is created in a simple manner in which the duct partitions are oriented equidistantly and parallel with respect to each other.
  • An additional advantage is that the sides of the convector element are closed off, as a result of which little dust can get inside and it is easy to attach ornamental parts on such a convector element.
  • heat exchanger according to the invention is suitable as heat exchanger for fluid flows.
  • the heat exchanger according to the invention for instance used as for instance a radiator in buildings, should meet the specific applicable requirements made to that end, such as for instance pressure resistance.
  • a thicker metal plate will be chosen or copper or steel instead of a thin aluminium plate of approximately 0.5 mm.

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  • 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)
EP01200685A 2000-02-24 2001-02-26 Echangeur de chaleur Withdrawn EP1134536A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1014486 2000-02-24
NL1014486A NL1014486C2 (nl) 2000-02-24 2000-02-24 Convectorelement en warmtewisselaar met parallelle platen.

Publications (2)

Publication Number Publication Date
EP1134536A2 true EP1134536A2 (fr) 2001-09-19
EP1134536A3 EP1134536A3 (fr) 2001-09-26

Family

ID=19770888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01200685A Withdrawn EP1134536A3 (fr) 2000-02-24 2001-02-26 Echangeur de chaleur

Country Status (2)

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EP (1) EP1134536A3 (fr)
NL (1) NL1014486C2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1435504A1 (fr) * 2003-01-02 2004-07-07 Hubert Antoine Echangeur de chaleur de forme prismatique
EP1491838A2 (fr) * 2003-06-26 2004-12-29 Advanced Fibre Communications Echangeur de chaleur et procédé de fabrication
DE10331372A1 (de) * 2003-07-11 2005-01-27 Zf Friedrichshafen Ag Plattenwärmeübertrager, insbesondere Getriebeölkühler
US7011148B1 (en) 2003-10-23 2006-03-14 Tellabs Petaluma, Inc. Heat exchanger with increased heat transfer efficiency and a low-cost method of forming the heat exchanger
DE102016015125A1 (de) * 2016-12-19 2018-06-21 Menk Apparatebau Gmbh Lamellenanordnung und Wärmetauscher
US10151497B2 (en) * 2015-02-23 2018-12-11 Seeley International Pty Ltd Method of producing a micro-core heat exchanger for a compact indirect evaporative cooler

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE444542A (fr) *
DE1111221B (de) * 1954-01-22 1961-07-20 W J Fraser & Co Ltd Waermetauscher mit Elementen, die durch Hin- und Herfalten von Blechtafeln gebildete parallele Kanaele fuer die Mittel aufweisen
US3829945A (en) * 1973-07-11 1974-08-20 Motoren Werke Mannheim Ag Method of producing a heat exchanger
US4040804A (en) * 1975-05-23 1977-08-09 Halm Instrument Co., Inc. Heat and moisture exchanger
WO1997021062A1 (fr) * 1995-12-04 1997-06-12 Eco Air Limited Echangeur thermique
DE19709145C1 (de) * 1997-03-06 1998-09-24 Autz & Herrmann Maschf Zweiteilige Wärmetauschereinrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT362407B (de) * 1979-07-10 1981-05-25 Heinrich Kolp Stahl Und Sonder Waermetauscher

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE444542A (fr) *
DE1111221B (de) * 1954-01-22 1961-07-20 W J Fraser & Co Ltd Waermetauscher mit Elementen, die durch Hin- und Herfalten von Blechtafeln gebildete parallele Kanaele fuer die Mittel aufweisen
US3829945A (en) * 1973-07-11 1974-08-20 Motoren Werke Mannheim Ag Method of producing a heat exchanger
US4040804A (en) * 1975-05-23 1977-08-09 Halm Instrument Co., Inc. Heat and moisture exchanger
WO1997021062A1 (fr) * 1995-12-04 1997-06-12 Eco Air Limited Echangeur thermique
DE19709145C1 (de) * 1997-03-06 1998-09-24 Autz & Herrmann Maschf Zweiteilige Wärmetauschereinrichtung

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1435504A1 (fr) * 2003-01-02 2004-07-07 Hubert Antoine Echangeur de chaleur de forme prismatique
EP1491838A2 (fr) * 2003-06-26 2004-12-29 Advanced Fibre Communications Echangeur de chaleur et procédé de fabrication
EP1491838A3 (fr) * 2003-06-26 2005-11-16 Tellabs Petaluma, Inc. Echangeur de chaleur et procédé de fabrication
US7108052B2 (en) 2003-06-26 2006-09-19 Tellabs Petaluma, Inc. Low-cost method of forming a heat exchanger with an increased heat transfer efficiency
DE10331372A1 (de) * 2003-07-11 2005-01-27 Zf Friedrichshafen Ag Plattenwärmeübertrager, insbesondere Getriebeölkühler
US7011148B1 (en) 2003-10-23 2006-03-14 Tellabs Petaluma, Inc. Heat exchanger with increased heat transfer efficiency and a low-cost method of forming the heat exchanger
US10151497B2 (en) * 2015-02-23 2018-12-11 Seeley International Pty Ltd Method of producing a micro-core heat exchanger for a compact indirect evaporative cooler
DE102016015125A1 (de) * 2016-12-19 2018-06-21 Menk Apparatebau Gmbh Lamellenanordnung und Wärmetauscher

Also Published As

Publication number Publication date
NL1014486C2 (nl) 2001-09-07
EP1134536A3 (fr) 2001-09-26

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