EP1252470B1 - Heizer und/oder kühler - Google Patents

Heizer und/oder kühler Download PDF

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Publication number
EP1252470B1
EP1252470B1 EP01902931A EP01902931A EP1252470B1 EP 1252470 B1 EP1252470 B1 EP 1252470B1 EP 01902931 A EP01902931 A EP 01902931A EP 01902931 A EP01902931 A EP 01902931A EP 1252470 B1 EP1252470 B1 EP 1252470B1
Authority
EP
European Patent Office
Prior art keywords
tank
heater
plate
cooler
plates
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.)
Expired - Lifetime
Application number
EP01902931A
Other languages
English (en)
French (fr)
Other versions
EP1252470A1 (de
Inventor
Pontus BÜLOW NIELSEN
Ralf Blomgren
Martin Holm
Mats Nilsson
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.)
Alfa Laval Corporate AB
Original Assignee
Alfa Laval Corporate AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alfa Laval Corporate AB filed Critical Alfa Laval Corporate AB
Publication of EP1252470A1 publication Critical patent/EP1252470A1/de
Application granted granted Critical
Publication of EP1252470B1 publication Critical patent/EP1252470B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • 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
    • F28D9/0037—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 conduits for the other heat-exchange medium also being formed by paired plates touching each other
    • 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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of 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
    • 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

  • the present invention concerns a heater and/or cooler comprising at least one tank with at least one inner space and at least two plate heat exchangers for at least two heat exchanging fluids, each of the plate heat exchangers being permanently joined and comprising at least one core of plates with a plurality of heat exchanging plates and at least two end plates, and plate interspaces being formed between the heat exchanging plates.
  • EP, A2 0 905 453 discloses a water heater which in addition to a primary heat exchanger heated by a heat source also comprises a secondary heat exchanger and a hot water storage.
  • the hot water storage is in close thermal contact with heat exchanging plates in the secondary heat exchanger and is built together with it.
  • the described modes of execution of the hot water storage is, however, not at optimum concerning heat transfer, strength, material consumption etc.
  • a heater and/or cooler comprising at least one tank with at least one inner space and at least two plate heat exchangers for at least two heat exchanging fluids, each of the plate heat exchangers being permanently joined and comprising at least one core of plates with a plurality of heat exchanging plates and at least two end plates, first and second sets of plate interspaces being formed between the heat exchanging plates of each heat exchanger wherein each heat exchanging plate having one or more corrugations extending between spaced apart, parallel first and second planes, which planes are substantially parallel with all the heat exchanging plates as well as the end plates, each heat exchanging plate having at least two port holes for forming through the core of plates at least one inlet channel and at least one outlet channel for at least the end plates having port holes respectively communicating with the said at least one inlet channel and the said at least one outlet channel, and the said at least two plate heat exchangers being housed in the said at least one tank, with the second set of plate interspaces being in fluid communication with the said at least one
  • a heater for heating water of such a construction can allow hot water to be provided directly on tapping, even after a long period of standstill without any need for hot water.
  • the heater or cooler can be used for heating or cooling any fluid so that such a heated or cooled fluid may be provided directly even after a longer period without any demand for the heated or cooled fluid.
  • the heat transfer between the working fluids in the heater and/or cooler can be good under all service conditions, with the strength characteristics being good for both the tank of the heater and/or cooler and for single plates in the core of plates and the material consumption being small.
  • the heater and/or cooler 1 in figure 1 intended for heating tap hot water, consists of a tank 2 with an inner space 3 housing tow plate heat exchangers 4a, 4b.
  • the plate heat exchanger 4a comprises a core of plates with a plurality of heat exchanging plates 5a and two end plates 6a, 7a.
  • the plate heat exchanger 4b comprises a core of plates with a plurality of heat exchanging plates 5b and two end plates 6b, 7b.
  • Each one of the two front (the two nearer ones in the figure) end plates 6a, 6b has two connections 8a, 9a and 9b, respectively, of which at least two connections 8a, 9b extend fluid-tightly through the front wall of the tank 2 while the other two connections 8b, 9a are fluid-tightly connected to one another through an outward pressing (not shown) in the tank 2, which outward pressing has the same function as a U-formed piece of pipe and fluid-tightly connects the connections 8b and 9a in that the plate heat exchangers 4a, 4b seal against the partition wall 14 within the area of the said outward pressing and seals against the tank 2 around the said outward pressing.
  • a construction without the outward pressing is possible, whereby a U-formed piece of pipe instead extends fluid-tightly through the front (the nearer one in the figure) wall of the tank 2 or through the partition wall 14.
  • the plate heat exchangers 4a, 4b then do not need to seal completely against the partition wall 14 or against the tank 2.
  • fluid-tightly in this connection it is meant that the fluid, in this case hot water or hot steam, which is led through the described connections do not mix with the fluid, in this case water to be heated, which is present within the tank.
  • connection 8a leads to an inlet channel 10a and the connection 9a leads from an outlet channel 11a in the plate heat exchanger 4a.
  • connection 8b leads to an inlet channel 10b and the connection 9b from an outlet channel 11b in the plate heat exchanger 4b.
  • the inlet channel 10a and the outlet channel 11a are in fluid communication with a first set of plate interspaces in the plate heat exchanger 4a.
  • the inlet channel 10b and the outlet channel 11b are in fluid communication with a first set of plate interspaces in the plate heat exchanger 4b.
  • the mentioned first sets of plate interspaces are constituted by every other plate interspace between the heat exchanging plates 5a, 5b in the plate heat exchangers 4a, 4b respectively.
  • connection 12, 13 extend through the front wall of the tank 2 for delivery to and removal from the tank, respectively, of the fluid which is present there.
  • the inner space 3 in the tank 2 is in fluid communication with a second set of plate interspaces in each of the two plate heat exchangers 4a, 4b.
  • all the plate interspaces which are not part of the described first sets of plate interspaces according to above are parts of the described second sets of plate interspaces, i.e. also the interspaces present between each of the end plates 6a, 6b, 7a, 7b and the respective heat exchanging plate 5a, 5b, closest thereto.
  • a partition wall 14 divides the inner space 3 into two part spaces which, however, are in fluid communication with each other in the upper part of the tank 2.
  • the tank 2 is rectangular and its height is larger than its width or depth.
  • the tank 2 is made of steel sheet but any other known suitable material may be used.
  • the tank 2 is here constituted by four, in use of the heater and/or cooler substantially vertical, hollow cylinders 18 which in the upper part of the heater and/or cooler are in fluid communication with a hollow cylinder 19 that in use of the heater and/or cooler is substantially horizontal, and in the lower part of the heater and/or cooler extends substantially horizontally and in which two plate heat exchangers 4a, 4b are housed.
  • the tank 2 basically is constructed by two pressed panels, a front one creating the front side of the heater and/or cooler, see figure 2, and a back one with the corresponding appearance but without connections, the panels must be fluid-tightly joined around the outer edges and substantially fluid-tightly joined between the hollow cylinders 18, as best seen figure 3. Even if it is more important that the panels are fluid-tightly joined between the two middle hollow cylinders 18 than between the rest of the hollow cylinders 18, a certain minor leakage generally may still be allowed between the cylinders 18.
  • the partition wall 14 need not be higher than what corresponds to the height of the hollow space 20, as can be seen in figure 5.
  • An outward pressing 21 (see figure 2) has the same function as a U-formed piece of pipe and fluid-tightly connects the connections 8b and 9a in that the plate heat exchangers 4a, 4b seal against the partition wall 14 in the area of the said outward pressing 21 and seal against the tank 2 around the said outward pressing 21.
  • a construction without any outward pressing 21 is possible whereby a U-formed piece of pipe instead extends fluid-tightly through the front (the nearer one in figure 2) wall on the tank 2.
  • the plate heat exchangers 4a, 4b then do not have to seal completely against the partitions wall 14 or against the tank 2.
  • a temperature sensor 22 an aeration nipple 23 and four suspension holes 24.
  • Hot water or hot steam (see the continuous line 15 in figure 1) from a heat source not shown here enters the heater and/or cooler through the connection 8a, continues into the inlet channel 10a in the plate heat exchanger 4a and is divided within the first set of plate interspaces in this plate heat exchanger, passes through the plate interspaces (the line 15 marks for the sake of clearness one plate interspace only), continues out through the outlet channel 11 a and the connection 9a, continues to and through the connection 8b, continues into the inlet channel 10b in the plate heat exchanger 4b and is divided within the first set of plate interspaces in this plate heat exchanger, passes through the plate interspaces (the line 15 marks for the sake of clearness one plate interspace only), continues out through the outlet channel 11b and exits through the connection 9b, after which the water or the steam returns to the heat source for reheating.
  • the tap water enters the heater and/or cooler through the connection 12 and exits through the connection 13.
  • the tap water may freely move within the second sets of plate interspaces. Due to the presence of the partition wall 14 the tap water will preferably move upwards in the right part of the inner space 3 and downwards in the left part of the same space. Over this main direction for the flow of tap water those water movements which are caused by the heating of the tap water within the plate interspaces are added.
  • a suitable control (not shown) a suitable temperature of the tap water which leaves the heater for use as water for showering or the like is held.
  • hot water or hot steam is, at least intermittently, delivered to the two in series coupled plate heat exchangers 4a, 4b.
  • This heated water volume comes practically at once out of the heat exchanger when tapping is once again started and the volume is so adapted that the heat exchanger reaches service performance in a steady condition before the previously stored water is finished.
  • the described construction has the considerable advantage that the previously heated water volume discussed in the previous section is large enough. If the thickness of the plate in the tank is kept down the manufacturing costs are small, which is possible with the mode of execution according to the figure 2-8 since the strength of the construction is sufficiently good in spite of the use of a thin panel. Since every heat exchanging plate in the plate heat exchangers only has two port holes a larger part of the areas of the plates may be used for heat exchange than has otherwise been the case.
  • the present corrugation pattern on the plates may also be of a simple kind.
  • the plates are often made of steel plate with a thickness of 0,20-0,35 mm, but also other materials may be used such as for example titanium.
  • the heat exchanging plates are often thin and the end plates thick, but also other modes of execution may exist. For example it is possible to think of the end plates not being thick but instead being of an appearance totally or partly in accordance with the present heat exchanging plates, however with the difference that port holes only are present where the mounting of connection are desired. It is also possible to use end plates of different designs at different ends of the core of plates, or even more end plates of the same or different appearances at each end of the core of plates.
  • the present core of plates may be permanently joined in any convenient known way, for instance by brazing, welding or gluing.
  • brazing the core of plates together copper braze, nickel braze or any other known braze may be used.
  • one or more of the fluids may be something other than water. For example it is possible to think of heat exchange between oil and water.
  • one or several of the fluids may move in another direction through the heater and/or cooler than has been described above. Thus, the flow direction may be reversed for the said first fluid or for the said second fluid or for the said first and second fluids at the same time.

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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)
  • Secondary Cells (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Claims (10)

  1. Heizer und/oder Kühler, umfassend mindestens einen Tank (2) mit mindestens einem Innenraum (3) und mindestens zwei Plattenwärmetauschem (4a, 4b) für mindestens zwei Wärmetausch-Fluide, wobei jeder der Plattenwärmetauscher (4a, 4b) dauerhaft verbunden ist und mindestens einen Kern von Platten mit einer Mehrzahl von Wärmetauscherplatten (5a, 5b) und mindestens zwei Endplatten (6a, 6b, 7a, 7b) umfaßt, wobei erste und zweite Sätze von Plattenzwischenräumen zwischen Wärmetauscherplatten (5a, 5b) jedes Wärmetauschers (4a, 4b) gebildet werden, wobei
    jede Wärmetauscherplatte (5a, 5b) eine oder mehrere Furchen aufweist, die sich zwischen beabstandeten parallelen ersten und zweiten Ebenen erstrecken, wobei die Ebenen im wesentlichen parallel zu allen Wäremtauscherplatten (5a, 5b) sowie zu den Endplatten (6a, 6b, 7a, 7b) verlaufen,
    jede Wärmetauscherplatte (5a, 5b) mindestens zwei Durchgangslöcher aufweist, die durch den Kern von Platten mindestens einen Einlaß (10a, 10b) und mindestens einen Auslaß (11a, 11b) für mindestens eines der Fluide bilden, sowie einen ersten Einlaßkanal (10a, 10b) und einen ersten Auslaßkanal (11a, 11b), die für ein erstes Fluid vorgesehen sind und in Strömungsverbindung mit dem ersten Satz von Plattenzwischenräumen entstehen,
    die Endplatten (6a, 6b, 7a, 7b) Durchgangslöcher aufweisen, die jeweils mit dem mindestens einen Einlaßkanal (10a, 10b) und dem mindestens einen Auslaßkanal (11a, 11b) in Verbindung stehen, und
    die mindestens zwei Plattenwärmetauscher (4a, 4b) in dem mindestens einen Tank (2) angeordnet sind, wobei der zweite Satz von Plattenzwischenräumen in Strömungsverbindung mit dem mindestens einen Innenraum (3) in dem mindestens einem Tank (2) steht,
    der mindestens eine Tank (2) mindestens ein zweites Fluidum enthält,
    wobei
    mindestens eine Trennwand (14) den mindestens einen Innenraum (3) in Teilräume unterteilt, die in einem oberen Teil des Tanks miteinander in Strömungsverbindung stehen, wobei das Fluidum frei zwischen den Teilräumen im oberen Teil des Tanks (2) fließen kann,
    jeder der Teilräume mindestens einen der Plattenwärmetauscher (4a, 4b) aufnimmt,
    und zwei Verbindungen (12, 13) durch eine erste Wand des mindestens einen Tanks (2) vorgesehen sind, so dass das zweite Fluidum in den mindestens einen Innenraum (3) hinein- bzw. von dort in den mindestens einen Tank (2) strömen kann,
    eine (12) der Verbindungen in einem ersten der Teilräume angeordnet ist und die andere (13) der Verbindungen in einem zweiten der Teilräume angeordnet ist, wobei sich beide Verbindungen (12,13) in einem Teil des Tanks (2) befinden, der niedriger liegt als der obere Teil des Tanks (2), wo die Teilräume miteinander in Strömungsverbindung stehen.
  2. Heizer und/oder Kühler nach Anspruch 1, wobei der erste Satz von Plattenzwischenräumen jeden zweiten Plattenzwischenraum in den mindestens zwei Plattenwärmetauscher (4a, 4b) umfaßt.
  3. Heizer und/oder Kühler nach Anspruch 2, wobei die Plattenzwischenräume des zweiten Satzes der Plattenzwischenräume abwechselnd mit den Plattenzwischenräumen des ersten Satzes angeordnet sind.
  4. Heizer und/oder Kühler nach Anspruch 3, wobei der zweite Satz von Plattenzwischenräumen weiterhin mindestens einen Zwischenraum umfaßt, der zwischen einer der Endplatten (6a, 6b, 7a, 7b) und der nächstgelegenen Wärmetauscherplatte (5a, 5b) definiert wird.
  5. Heizer und/oder Kühler nach einem der vorangegangenen Anspruche, wobei eine erste Verbindung (8a) durch eine erste Wand in dem mindestens einen Tank (2) mit dem ersten Einlaßkanal (10a) verbunden ist und eine zweite Verbindung (9b) durch die erste Wand mit dem ersten Auslaßkanal (11b) verbunden ist.
  6. Heizer und/oder Kühler nach einem der vorangegangenen Ansprüche, wobei die Teilräume im wesentlichen gleich groß sind.
  7. Heizer und/oder Kühler nach einem der vorangegangenen Ansprüche, wobei der erste Auslaßkanal (11a) des ersten der mindestens zwei Plattenwärmetauscher (4a) mit dem ersten Einlaßkanal (10b) des zweiten der mindestens zwei Plattenwärmetauscher (4b) verbunden ist, so dass das erste Fluid in den ersten Einlaßkanal (10a) im ersten Plattenwärmetauscher (4a) über eine erste Verbindung (8a) durch eine erste Wand des mindestens einen Tanks (2) einströmen, durch die beiden in Reihe miteinander verbundenen Plattenwärmetauscher (4a, 4b) durchströmen und dann aus dem ersten Auslaßkanal (11b) des zweiten Plattenwärmetauschers (4b) über eine zweite Verbindung (9b) durch die erste Wand ausströmen kann.
  8. Heizer und/oder Kühler nach einem der vorangegangen Ansprüche, wobei der Tank (2) im wesentlichen rechtwinklig ist.
  9. Heizer und/oder Kühler nach einem der Ansprüche 1-10, wobei der Tank (2) mindestens zwei Hohlzylinder (18) umfaßt, die im Gebrauch des Heizers und/oder Kühlers im wesentlichen vertikal verlaufen und im oberen Teil des Heizers und/oder Kühlers im Strömungsverbindung mit einem Hohlzylinder (19) stehen, der im Gebrauch des Heizers und/oder Kühlers im wesentlichen horizontal verläuft, wobei die Hohlzylinder in einem unteren Teil des Heizers und/oder Kühlers in Strömungsverbindung mit einem Hohlraum (20) stehen, der sich im Gebrauch des Heizers und/oder Kühlers im wesentlichen horizontal erstreckt und die Plattenwärmetauscher (4a, 4b) aufnimmt.
  10. Heizer und/oder Kühler nach einem der vorangegangenen Ansprüche, wobei die Höhe des Tanks (2) größer ist als seine Breite oder Tiefe.
EP01902931A 2000-02-01 2001-01-30 Heizer und/oder kühler Expired - Lifetime EP1252470B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0000336A SE518190C2 (sv) 2000-02-01 2000-02-01 Beredare innefattande minst en tank med minst ett utrymme och minst en plattvärmeväxlare
SE0000336 2000-02-01
PCT/SE2001/000172 WO2001057452A1 (en) 2000-02-01 2001-01-30 Heater and/or cooler

Publications (2)

Publication Number Publication Date
EP1252470A1 EP1252470A1 (de) 2002-10-30
EP1252470B1 true EP1252470B1 (de) 2005-03-16

Family

ID=20278321

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Application Number Title Priority Date Filing Date
EP01902931A Expired - Lifetime EP1252470B1 (de) 2000-02-01 2001-01-30 Heizer und/oder kühler

Country Status (6)

Country Link
EP (1) EP1252470B1 (de)
AT (1) ATE291204T1 (de)
AU (1) AU2001230694A1 (de)
DE (1) DE60109418D1 (de)
SE (1) SE518190C2 (de)
WO (1) WO2001057452A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT12045U1 (de) * 2009-05-26 2011-09-15 Gpg Gebaeudetechnik Gmbh Warmwasserbereiter
CN105651086B (zh) * 2016-02-26 2017-08-11 中国海洋石油总公司 一种能用于浮式平台的板翅式换热器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT345942B (de) * 1976-10-13 1978-10-10 Reisner & Wolff Maschf Heisswasserspeicher
FR2665523B1 (fr) * 1990-07-31 1992-10-16 Valeo Thermique Moteur Sa Boite a eau d'un echangeur de chaleur principal, en particulier pour vehicules automobiles, contenant un echangeur de chaleur secondaire.
DE19742075A1 (de) * 1997-09-24 1999-03-25 Bosch Gmbh Robert Brauchwasserbereiter
US6082449A (en) * 1998-01-27 2000-07-04 Calsonic Corporation Oil cooler structure

Also Published As

Publication number Publication date
DE60109418D1 (de) 2005-04-21
EP1252470A1 (de) 2002-10-30
SE518190C2 (sv) 2002-09-10
SE0000336L (sv) 2001-08-02
ATE291204T1 (de) 2005-04-15
SE0000336D0 (sv) 2000-02-01
WO2001057452A1 (en) 2001-08-09
AU2001230694A1 (en) 2001-08-14

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