EP1873465A1 - Echangeur thermique doté de canaux d'écoulement conçus en forme d'anneau - Google Patents

Echangeur thermique doté de canaux d'écoulement conçus en forme d'anneau Download PDF

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Publication number
EP1873465A1
EP1873465A1 EP07010874A EP07010874A EP1873465A1 EP 1873465 A1 EP1873465 A1 EP 1873465A1 EP 07010874 A EP07010874 A EP 07010874A EP 07010874 A EP07010874 A EP 07010874A EP 1873465 A1 EP1873465 A1 EP 1873465A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
annular body
heat transfer
shells
exchanger according
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.)
Ceased
Application number
EP07010874A
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German (de)
English (en)
Inventor
Gerhard Engstfeld
Markus Niedermayer
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.)
MHG Heiztechnik GmbH
Original Assignee
MHG Heiztechnik GmbH
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 MHG Heiztechnik GmbH filed Critical MHG Heiztechnik GmbH
Publication of EP1873465A1 publication Critical patent/EP1873465A1/fr
Ceased 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
    • F28D9/0012—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
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/403—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes the water tubes being arranged in one or more circles around the burner
    • 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 relates to a heat exchanger, in particular for use in a direct firing or exhaust heat recovery in a heating system, which has at least one flow channel for flow through a gaseous and / or liquid heat transfer medium, and a heat transfer from or to the gaseous and / or liquid Heat transfer medium takes place.
  • Such heat exchangers are also referred to as heat exchanger plates and are suitable for the transmission of radiation and / or convection heat.
  • the heat exchanger plates can be used in directly fired operation or in exhaust gas heat recovery for heating air or liquids and in the exhaust heat recovery as a downstream heating surface of gas and oil boilers.
  • Tube heat exchangers in which a heat transfer fluid is heated by means of a heat carrier gas, which is guided via heat transfer tubes through a vessel filled with the liquid and transfers its heat through the tube walls to the liquid, are generally known. Furthermore, finned tube heat exchangers are known, wherein a gas flows through an inner tube, and projects a rib structure in this tube radially inwardly. Concentric with the inner tube, a liquid flows through an outer chamber which is formed around the inner tube. Thus, heat transfer through the wall of the inner tube from or to the gas can be transmitted.
  • a heat exchanger which has an inner chamber which is radially enclosed by an outer chamber. Within the outer chamber, an inner chamber annularly surrounding the intermediate chamber is provided, which is fluidly connected to the inner chamber.
  • the inner chamber is flowed through by a heat transfer gas, wherein the outer chamber is flowed through by a heat transfer fluid.
  • the inner wall of the intermediate chamber with its larger outer surface interacts with the heat carrier gas and with its smaller inner surface with the heat transfer fluid.
  • the DE 35 90 068 C2 discloses a plate heat exchanger for liquid media involving sludge, sewage, industrial process water or the like.
  • This plate heat exchanger comprises flow channels, which are formed with plates, between which baffles are arranged. Between the plate walls connecting channels are present, with a framework by means of which the baffles are clamped between the plates, the dimensions of the baffles are variable with dissolved framework.
  • the plate heat exchanger can be adapted to the conditions imposed by the liquids such as temperature and viscosity difference, but also in this present embodiment, the construction of the framework, the baffles and the connecting channels and the flow channels a very complex structure with a variety of items , which must be assembled by welding or the like consuming.
  • the heat exchanger has at least one annular body which has at least one connection opening for introduction and at least one further connection opening for discharging the heat transfer medium, wherein the heat transfer medium flows through the annular body in the circumferential direction.
  • the invention is based on the idea that the heat exchanger is formed from a minimum number of individual parts. At the same time, the formed heat exchanger meets the demand that a large heat transfer surface is available and the heat exchanger has a high efficiency.
  • the flow channel for the flow through the gaseous and / or liquid heat transfer medium is formed in the interior of the ring body, so that the heat between the medium surrounding the ring body from the outside, can pass on the gaseous and / or liquid heat transfer medium in the ring body itself.
  • the at least one ring body can be arranged in the hot atmosphere of the firing, so that a heat transfer due to the open both on the inside, as well as outside and on the side surfaces of the annular body shape can take place.
  • the cross-sectional shape of the annular body is flat due to a rather plate-shaped shape, so that the width of the annular body, for example, is less than the difference between outer radius and inner radius of the ring structure.
  • the heat exchanger has a plurality of annular bodies, which are arranged parallel spaced from each other.
  • the respective connection openings of the parallel spaced arrangement of the ring body are fluidly connected to each other, so that, for example, a successive flow or a parallel flow through the ring body takes place with the heat transfer medium.
  • the annular bodies are successively flowed through in alternating direction with the heat transfer medium, wherein in each case a connection opening is closed and the ring bodies are welded together or pressed together.
  • the number of annular bodies, which form the entire heat exchanger, is not fixed and can be adapted to the available space and to the size of the firing or the exhaust heat recovery device.
  • the distance between the respective annular bodies to each other can be kept constant or vary arbitrarily, wherein also a different type of arrangement can be provided, which does not align the annular body parallel to each other.
  • the distance of the ring body to each other should, however, advantageously comprise a minimum distance to allow a flow around the ring body with the heat transfer medium outside of the ring body.
  • the heat transfer medium which flows through the annular body, enters through the connection openings in the annular body and first flows through the annular body in the circumferential direction, and exits from the at least one further connection opening of the annular body again. Due to the fluidic connection of the connection openings with the connection openings of the adjacent annular bodies, for example, these can be flowed through in succession or in parallel.
  • the connection openings of the respective annular bodies have a projection from the plane side surfaces of the annular bodies, so that the connection openings of the respective annular bodies can be joined to one another. Consequently a minimum distance between the ring bodies is maintained, which are each connected to each other via the connection openings.
  • a flow through the ring body in the direction of exchange with the heat transfer medium allows a more uniform transfer of heat from the outside of the ring body to the medium in the interior of the ring body, so that no unilateral preferred direction with a non-uniform heat distribution in the heat exchanger is formed, in each case a non-flow through connection opening must be closed so that a reciprocal inflow or outflow of the heat transfer medium can take place after flowing through the annular body in the circumferential direction.
  • a further advantageous embodiment of the invention provides that pipe elements are arranged between the connection openings of the respective annular body in order to create both a mechanical and a fluidic connection of the annular body to one another.
  • the possibility is created to arrange the ring body with a greater distance from each other, wherein the individual annular bodies are fastened by the tubular elements and are held thereon.
  • a plurality of ring bodies can be connected to one another via the connection openings, the connection to the pipe elements being able to be effected by welding or by a mechanical joining connection, whereby O-ring seals can be provided for the fluidic sealing.
  • An application of tie rods is conceivable, which pull the ring body in total on block and so form a mechanical overall arrangement.
  • the pipe elements may be formed as straight pipe connections or comprise curved or bent pipes, so that connection openings are also connected to each other, which are not facing each other between the ring bodies. So it is possible, for example, connection openings to connect to each other, which are located on the ring body in a 180 ° offset position.
  • the annular body is advantageously formed from two half-shells, which have a respective annular cavity, wherein the half-shells are brought to each other on the cavity side, to form the flow channel.
  • the heat exchanger can be designed in terms of manufacturing technology, in which the annular bodies are produced from sheet metal components, which are each brought opposite each other in a circular half-shell shape so that the inside cavity for forming the flow channel is formed.
  • the half-shells for forming the ring body are pressure-tightly connected to each other by means of a joining process, the joining process comprising in particular a welding and / or a soldering process and / or a pressing process.
  • a joining process comprising in particular a welding and / or a soldering process and / or a pressing process.
  • a simple way of producing the half shells to form the annular body can be seen in the forming process of the sheet material, wherein the forming process may relate to stamping and deep drawing process.
  • the half-shells of the annular body can be formed symmetrically in order to minimize the parts variance to form the heat exchanger.
  • the geometric configurations of the half-shells can each be produced in the stamping and deep-drawing process, without carrying out further complicated production steps.
  • the inner and outer diameter of the annular body is variable depending on the power requirement with respect to the heating surface or cooling surface, wherein, depending on the power requirement of the heat exchanger, the width of the annular body to the amount of heat transfer fluid can be adjusted, which flows through the ring body per unit time.
  • connection openings are arranged on the upper side in the installation position of the heat exchanger relative to a force acting in the direction of a bottom gravity. This can proceed unhindered down at a condensate formation in the gaseous heat transfer medium or in another to be warmed or aufmelenden medium without stagnation and be discharged via a drain in the enclosing housing of the heat exchanger to the outside.
  • a perfect ventilation of the annular body for the medium flowing through, such as water, oil or refrigerant is ensured by the top-side arrangement of the connection openings, since the air in the ring bodies can freely escape upwards and thus ensures a good flow.
  • At least one of the half-shells forming a ring body has knob-like elevations in order to provide a minimum distance to the adjacent ring body.
  • the knob-like elevations may be stamped or stamped into the half-shells formed from sheet material, and are arranged distributed uniformly over the circumference of the annular body. Now, if at least two annular body arranged parallel to each other, the knob-like elevations of the half-shells touch the respective adjacent half-shell, and allow compliance with a minimum distance of the ring body to each other. It is sufficient to provide on each one half shell, the knob-like elevations, since they are sufficient for maintaining a minimum distance between two adjacent shells.
  • a separating web is arranged in the flow channel, which is introduced between the connection openings in order to flow through the Specify flow channel with the heat transfer medium in a circumferential direction in the ring body.
  • the separating web effects a fluidic separation between the connection openings, so that when the heat transfer medium flows into the interior of the annular body, it can not escape again immediately via the adjacent connection opening, but completely flows through the annular body in the circumferential direction.
  • the divider can be arranged as a metal element in the half-shells, which is fastened for example by a welded joint or a solder joint within the flow channel in the half-shells.
  • the divider can also be a plastic or another sealing element.
  • a further advantageous embodiment of the present invention relates to depressions, which are impressed distributed in the half-shells on the circumference, and which adjoin to opposite recesses of the annular body forming the second half-shell.
  • the spot welds are introduced within the recesses, as the half shells touch each other at the respective levels in the recesses.
  • the recesses are arranged distributed on the circumference and are located approximately at half the width of the annular body, so that they are arranged on the half of the diameter difference between the inside and the outside in the radial direction.
  • the annular body is bounded by an inner side, an outer side and the respective left and right side surface.
  • the heat transfer medium passing through the heat transfer medium in the annular body exchanges heat with the environment of the annular body, with radiant heat transfer taking place via the inside and / or outside.
  • a convective heat transfer takes place via the side surfaces of the half-shells. It should be noted that a convection heat transfer can also take place on the inside and the outside, where, however, via the side surfaces a radiant heat transfer can be made possible and the respective forms of heat transfer is not limited to said areas.
  • the preferred heat transfers across the inside and / or outside of the radiant heat transfer and the convective heat transfer across the side surfaces are to be considered as merely a preferred form of heat transfer.
  • the inner side bounds the circumferential ring of the annular body radially inwardly, and the outer surface bounded the circumferential ring of the annular body radially outward.
  • the side surfaces are formed by the flat surfaces of the half-shells, and limit the ring body laterally. In this case, the connection openings are introduced in the side surfaces, whereas the joint connection of the two half-shells is provided on the inside or on the outside.
  • the annular body and / or the tubular elements may comprise a stainless steel and / or a black sheet steel, wherein the black sheet steel in particular comprises on the outside a black plastic coating.
  • Stainless steel is characterized as a rust-free material, and is not reactive with most heat transfer media.
  • the use of a black steel sheet is particularly useful for the use of heat recovery in oil or gas boilers possible, after the welding of the two half-shells on the abgasberlickt side a suitable plastic coating is applied.
  • a further advantageous embodiment of the invention provides that the annular body is made of graphite and / or in the sintering process, comprising a ceramic, wherein for connecting the half shells of the annular body or for connecting the annular body to a heat exchanger, a mechanical joining method is used, and between the half-shells ring seals are used for fluidic sealing.
  • a ring seal such as an O-ring seal must be used as a seal in the subsequent connection, since fluid sealing methods such as welding of the half shells due to the selection of materials omitted.
  • additional heat exchanger surfaces in the form of ribs or the like may be provided in order to further improve the heat transfer between the inside and the outside of the heat transfer medium.
  • the rib-shaped heat exchange surfaces can be made available at the same time as mechanical stiffening elements between the annular bodies or between the tubular elements and the annular bodies.
  • the shape of the ring body is not limited to a circular or oval contour, z. B. is also a rectangular or square outer and / or inner contour conceivable, which is still considered as annular. Even in these forms, the inner heat transfer medium flows in the circumferential direction through the annular body.
  • the heat exchanger 100 shown in FIG. 1 comprises by way of example three annular bodies 10, which are connected to one another via tubular elements 14.
  • the tubular elements 14 each extend in pairs between the annular bodies 10 and are arranged on these upper side.
  • the connections for the supply or discharge of the heat transfer medium, which flows through the annular body or the pipe elements, are not shown.
  • the annular bodies 10 are held by the tubular elements 14 and arranged in parallel adjacent to each other at a predetermined distance. The distance between the ring elements 10 is thus determined by the length of the tubular elements 14, through which at the same time the heat transfer medium can flow from ring body to ring body.
  • the tubular elements 14 take both the task of mechanical connection of the ring body 10 true to each other, and at the same time create a fluidic connection between the annular bodies 10.
  • the entire unit of the heat exchanger 100 is - as shown in Figure 1 - flows around the outside with the heat transfer medium, which the Heat exchanges with the medium that flows through the ring body.
  • the illustrated unit can be installed, for example, in the furnace of a heater or in the area of exhaust heat recovery of the exhaust gas of a heating system. Due to their open or free arrangement, the ring bodies 10 offer a large surface area for exchanging or transferring the heat of the surrounding medium with the medium flowing through, so that a high efficiency of the heat exchanger can be achieved.
  • FIG. 2 shows an isometric view of the heat exchanger 100 according to FIG. 1, wherein in this illustration too, three annular bodies 10 communicate with each other via respective pipe elements 14.
  • the flow channel, which is extends circumferentially within the ring body 10 is indicated by dashed lines.
  • FIG. 3 shows a further exemplary embodiment of a heat exchanger 100, wherein the annular bodies 10 are connected to one another via tubular elements 14 which are not arranged completely on the upper side of the annular bodies 10. Rather, the pipe elements 14 are in a position offset by 180 ° to each other, so that the flow through the ring body 10 according to this embodiment can be carried out differently.
  • the connection between the ring bodies 10 is realized in each case over the same length and straight tube elements.
  • the ring body 10 are each again three times parallel adjacent to each other, wherein the tube elements 14 are formed in a curved shape, and alternately the connection openings of the ring body 10 at an angle of, for example, 180 ° offset from each other.
  • the tubular elements 14 it is possible to form the flow through the annular body 10 each differently.
  • annular body 10 is shown in each case, the illustration in FIG. 5a taking place from the direction of the side surface, whereas the representation of the annular body 10 in FIG. 5b comprises a side view.
  • the annular body 10 is formed from a first half-shell 12 and a second half-shell 13, which are interconnected by circumferential welds. The welds are located both on the circumference in the inner side 17 of the ring body 10, as well as on the outside 18.
  • the side is limited Annular body 10 through the side surfaces 19.
  • connection openings 11 are shown to provide an inlet or outlet opening for the heat transfer medium. At the connection openings 11 either the pipe elements (not shown here) are attached or the connection openings 11 are brought from ring body 10 to ring body 10 each on each other and welded if possible.
  • connection openings 11 Between the connection openings 11 is a separating web 16, which prevents the heat transfer medium can flow directly between the connection openings 11. Thus flows into one of the connection openings 11, the heat transfer medium and runs in the circumferential direction through the entire ring body 10 and exits on the opposite side at the second connection opening 11 again.
  • elevations 15 are provided which protrude from the flat surface of the half-shell 12 in the shape of a knob. This makes it possible that with a successive assembly of a plurality of ring body in a parallel arrangement to each other a minimum distance can be maintained.
  • the elevations 15 are introduced by means of a stamping or stamping process in the sheet material, wherein a total of eight elevations 15 are shown. However, a different number of surveys is possible, which need not necessarily be uniformly distributed on the circumference. Between the elevations 15 recesses 20 are occasionally formed, which are so deeply inserted into the sheet material of the half-shells 12, 13, that touch each other in a juxtaposed arrangement of half-shell 12 to half-shell 13.
  • Center welds are provided centrally in the recesses 20 to provide a connection of the half shells 12, 13 over the spot welds within the recesses 20.
  • an increase in the stability or strength of the annular body 10 can be achieved.
  • four recesses 20 are provided at a respective angle of 90 ° to each other, whereby in this case also a larger or smaller number of recesses 20 is possible.
  • the recesses 20 and the elevations 15 are each arranged centrally in the ring width of the annular body 10, so that they are located on the inner side 17 on the half of the radius difference between the outer diameter on the outer side 18 and the inner diameter. In this case, a different distribution of the mentioned features is possible, so that there is an asymmetrical design of the annular body 10.
  • connection openings 11 are each formed as elevations of the flat side surfaces 19 collar-shaped, so that they allow a Aufdlerhegen a minimum distance of the respective half-shells 12 and 13 of the ring body 10. All embodiments of the abovementioned features can be produced by forming processes or by embossing, stamping and bending processes, wherein other manufacturing processes can be used.
  • FIGs 6a and 6b and Figures 7a and 7b show an alternative embodiment of an annular body 10, which has a changed flow direction.
  • the heat exchanger 100 has four ring bodies 10, whose half shells according to this embodiment only comprise a punched-through connection opening 11.
  • When connecting a plurality of these ring body 10 to a heat exchanger it is possible to flow through the individual ring body 10 alternately.
  • at least two annular body 10 must be connected to each other, which are then respectively flowed through in opposite directions.
  • two connection openings 11 a are held closed or not perforated during production in alternation, so that a connection opening 11 is opened and a connection opening 11 a is closed.
  • the mutual connection opening 11a and the perforated connection opening 11 are connected to the respectively following ring body 10 and the corresponding connection openings 11.
  • FIGS. 8a and 8b show another embodiment of a ring body 10 with an annular separation element 22. This is located in the parting plane of the two half-shells 12 and 13, and forms a dividing wall within the flow channel in the annular body 10.
  • the separator 22 may be joined in the same way by way of example by a welding process, as the half-shells 12, 13 themselves to each other are joined.
  • the heat transfer medium flows via a connection opening 11 from a first half-shell 12 into the annular body 10 and flows through this to 180 °, whereupon the heat transfer medium flows through the passage opening 23.
  • the heat transfer medium flows from the through-hole 23 back to the connection opening 11a arranged offset by 180 °, which, as in the first half-shell 12, is simply inserted therein.
  • a through-hole 24 is introduced above the connection opening 11 in order to allow a venting of the annular body 10.
  • FIG. 9 shows a further exemplary embodiment of a ring element 10 which has a rectangular or square outside 18.
  • the contour may have advantages, especially as a larger surface is available for heat transfer.
  • connection openings 11 and 11a these are represented twice per half shell, which, however, can also be provided only once per half-shell in an alternative embodiment.
  • the inner side 17 is formed in FIG. 9 as a circular contour, which however can also be represented as an angular or oval contour.
  • the present invention is not limited in its embodiments to the specified embodiments. Rather, a variety of variants are conceivable, which also make use of the solutions shown in fundamentally different embodiments of the invention.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP07010874A 2006-06-27 2007-06-01 Echangeur thermique doté de canaux d'écoulement conçus en forme d'anneau Ceased EP1873465A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006029854A DE102006029854A1 (de) 2006-06-27 2006-06-27 Wärmetauscher mit ringförmig ausgebildeten Strömungskanälen

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EP1873465A1 true EP1873465A1 (fr) 2008-01-02

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011159595A3 (fr) * 2010-06-15 2012-04-05 Pb Heat, Llc Echangeur thermique à contre-courant
EP2096372A3 (fr) * 2008-03-01 2013-09-25 Robert Bosch GmbH Appareil de chauffage
EP2157382A3 (fr) * 2008-08-22 2015-09-23 Robert Bosch GmbH Appareil de chauffage
EP2796685A4 (fr) * 2011-12-22 2015-11-25 Futaba Ind Co Ltd Dispositif de récupération de chaleur des gaz d'échappement
EP3208566A1 (fr) * 2016-02-22 2017-08-23 Vaillant GmbH Échangeur thermique primaire
US20200355397A1 (en) * 2017-08-28 2020-11-12 Cosmogas S.R.L. Heat exchanger for a boiler, and heat-exchanger tube
CN116576701A (zh) * 2023-07-14 2023-08-11 德阳劲达节能科技有限责任公司 一种高温废水的余热回收装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008014523A1 (de) 2008-03-15 2009-09-17 Robert Bosch Gmbh Heizgerät
DE102008038041A1 (de) 2008-08-16 2010-02-25 Robert Bosch Gmbh Wärmetauscher für ein Heizgerät
DE202008011266U1 (de) 2008-08-23 2009-12-24 Robert Bosch Gmbh Heizgerät
DE102009032121A1 (de) 2009-07-08 2011-01-13 Robert Bosch Gmbh Brennwertkessel

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Publication number Priority date Publication date Assignee Title
DE3590068C2 (de) 1984-02-24 1988-06-30 Stubinen Utvecklings Ab Plattenw{rmetauscher f}r fl}ssige Mittel
DE19954465A1 (de) 1999-11-12 2001-06-07 Gottfried Roessle Wärmeübertrager
WO2002050480A1 (fr) * 2000-12-20 2002-06-27 Merloni Termosanitari S.P.A. Echangeur de chaleur
WO2003106909A2 (fr) 2002-06-13 2003-12-24 Worgas Bruciatori S.R.L. Echangeur thermique
EP1647793A2 (fr) * 2004-10-15 2006-04-19 Teclab S.C.R.L. Récupérateur pour la condensation de fumées

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DE810756C (de) * 1949-12-17 1951-08-13 Basf Ag Waermeaustauscher
SE418223B (sv) * 1972-06-02 1981-05-11 Aga Ab Vermevexlare
CA2206847C (fr) * 1994-12-14 2005-06-28 Shuzo Nomura Echangeur de chaleur
US7128136B2 (en) * 1998-08-10 2006-10-31 Gregory Christian T Radial flow heat exchanger

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3590068C2 (de) 1984-02-24 1988-06-30 Stubinen Utvecklings Ab Plattenw{rmetauscher f}r fl}ssige Mittel
DE19954465A1 (de) 1999-11-12 2001-06-07 Gottfried Roessle Wärmeübertrager
WO2002050480A1 (fr) * 2000-12-20 2002-06-27 Merloni Termosanitari S.P.A. Echangeur de chaleur
WO2003106909A2 (fr) 2002-06-13 2003-12-24 Worgas Bruciatori S.R.L. Echangeur thermique
EP1647793A2 (fr) * 2004-10-15 2006-04-19 Teclab S.C.R.L. Récupérateur pour la condensation de fumées

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2096372A3 (fr) * 2008-03-01 2013-09-25 Robert Bosch GmbH Appareil de chauffage
EP2157382A3 (fr) * 2008-08-22 2015-09-23 Robert Bosch GmbH Appareil de chauffage
WO2011159595A3 (fr) * 2010-06-15 2012-04-05 Pb Heat, Llc Echangeur thermique à contre-courant
EP2796685A4 (fr) * 2011-12-22 2015-11-25 Futaba Ind Co Ltd Dispositif de récupération de chaleur des gaz d'échappement
EP3208566A1 (fr) * 2016-02-22 2017-08-23 Vaillant GmbH Échangeur thermique primaire
US20200355397A1 (en) * 2017-08-28 2020-11-12 Cosmogas S.R.L. Heat exchanger for a boiler, and heat-exchanger tube
US11598555B2 (en) * 2017-08-28 2023-03-07 Cosmogas S.R.L. Heat exchanger for a boiler, and heat-exchanger tube
CN116576701A (zh) * 2023-07-14 2023-08-11 德阳劲达节能科技有限责任公司 一种高温废水的余热回收装置
CN116576701B (zh) * 2023-07-14 2023-09-22 德阳劲达节能科技有限责任公司 一种高温废水的余热回收装置

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DE102006029854A1 (de) 2008-01-03

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