EP0994313A1 - Verfahren zur Herstellung eines Wärmetauschers und Wärmetauscher, der durch Anwendung des Verfahrens erhalten wird - Google Patents
Verfahren zur Herstellung eines Wärmetauschers und Wärmetauscher, der durch Anwendung des Verfahrens erhalten wird Download PDFInfo
- Publication number
- EP0994313A1 EP0994313A1 EP99203247A EP99203247A EP0994313A1 EP 0994313 A1 EP0994313 A1 EP 0994313A1 EP 99203247 A EP99203247 A EP 99203247A EP 99203247 A EP99203247 A EP 99203247A EP 0994313 A1 EP0994313 A1 EP 0994313A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- heat
- fluid
- channel
- copy
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D25/00—Special casting characterised by the nature of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
-
- 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
- F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
Definitions
- the invention relates to a method for producing a Heat exchanger made of metal such as aluminum, copper, iron, Steel or brass, which includes heat exchangers: one room formed by a wall, which with a Inlet opening for supplying a first fluid into the room, and an outlet opening for discharging the first fluid the room is provided; essentially one helically extending around the space for a second fluid; and a number of protrusions from the Protrude wall into the room.
- the Invention obtained using the method Heat exchanger.
- Such a heat exchanger is for example from the EP-A-0 794 393 is known.
- This publication describes one using a light metal casting technique manufactured heat exchanger with a closed, polygonal or curved inner wall that with at least a water channel, one located inside the inner wall extending combustion chamber for hot flue gases and at the Extending from the inside wall heat-transferring surface-enlarging elements, such as Cam or partition walls is provided.
- the water channel extends helically along the outside of the Inner wall and has adjacent turns.
- the known heat exchanger is relatively compact.
- the known heat exchanger has a cheap one Efficiency due to the fact that the water channel is on is attached to the outside of the combustion chamber. This Arrangement namely leads to the fact that the temperature of the Approximately the heat exchanger on the outside Temperature of the water in the water channel corresponds while the hot flue gases are in the combustion chamber. So be the convection and radiation losses of the heat exchanger minimized.
- the well-known heat exchanger is in a conventional Casting process using a casting core structure Cast sand, wax or plastic.
- casting processes create those for design of the heat exchanger desired freedom in the determination the relationship between the water side and Flue gas side surface for optimal heat transfer between the flue gases and the water.
- a disadvantage of the known heat exchanger is that the Content of the water channel is relatively large, which results has that after the commissioning of the heat exchanger due to the high heat capacity of the water takes a relatively long time until the water in the water channel has the desired temperature. Most of all, this is undesirable if the water in the heat exchanger is part of a Water circuit for heating tap water is what is in a so-called combination boiler, which is designed to both Heat tap water as well as water for heating purposes, is common. The desired tap water heating only takes place instead of when the water flowing through the heat exchanger has reached the right temperature. The faster this happens, the higher the comfort for the user of the Be cauldron.
- a first reason for the large content of the water channel in the well-known heat exchanger is that the water channel one must have a relatively large minimum cross-section to this Shape the channel using a traditional casting process to be able to. These minimum dimensions are not allowed be undercut because of the casting core in this case an insufficient one at least during the casting process could provide support on the walls of the canal. Both in connection with and independently of The first reason mentioned is a second reason for the big one Content of the water channel that the water channel is almost extends over the entire outer surface of the combustion chamber, so that the water channel has a relatively large length.
- Another disadvantage of the known heat exchanger is that this one, although light metal is used has relatively large mass since the different parts like e.g. the wall of the combustion chamber, the wall of the water channel and the elements that make up the heat transfer surface enlarge, are relatively thick. The reason for this thickness is the required minimum space between the parts of the Pouring core set in connection with inaccuracies in the Production of the casting core set, the assembly and its Use.
- the relatively large mass of the Heat exchanger implies that the heat capacity of the Heat exchanger is relatively large and that the material costs are relatively high. The adverse consequences of the big ones Heat capacity are related to the above Water channel has been explained.
- the object of the invention is therefore to provide a method create a heat exchanger in such a way to establish the limitations of traditional Manufacturing process can be overcome and the cheap Properties of the known heat exchanger type further can be optimized.
- the process includes the following steps: a plastic becomes a copy of the heat exchanger manufactured, which plastic at least in the Melting temperature of the metal evaporates; the surfaces of the copy are covered with a gas permeable, supportive layer from one heat-resistant material coated; and Metal in liquid state on the copy within the gas permeable layer is poured around the plastic to evaporate and the space occupied by the plastic to fill with the metal.
- plastic heat exchanger copy preferably made of polystyrene (EPS)
- EPS polystyrene
- injection molding processes can be used with whose help is a copy of one or more parts can be manufactured. Manufacturing in parts becomes one choose if the geometry of the heat exchanger and so even the copy is complex.
- the one for molding the copy parts required form (s) can be relative in this case just run.
- the different parts of the Copy can easily be made with a suitable adhesive or by e.g. Welding the Plastic bonded together to form the copy become.
- the plastic and any adhesive used should have an evaporation temperature that is lower than or at least as high as that Melting temperature of the metal from which the heat exchanger is made so that during the pouring of the liquid Metal on the copy of the space defined by the copy is gradually taken up by the metal during the Evaporate plastic and possibly the adhesive and through the gas permeable, supporting layer heat-resistant material escape.
- the surfaces of the copy by first Surfaces of the copy with a gas permeable layer coated with a first heat-resistant material and then the gas-permeable layer with one layer from a supportive, porous second heat-resistant Material coated.
- the gas permeable layer from the first heat-resistant material preferably one ceramic material, especially silicon dioxide, Alum, zircon, chromite and / or aluminosilicate, acts as a "skeleton" for the copy to preserve it Form before and during the casting process and also functions as a "partition" between the copy (and during the Casting process: the metal) and the layer of supportive, porous second heat-resistant Material, which is preferably a ceramic material, and especially consists of sand.
- the layer from the first heat-resistant material can be immersed by pour over or spray, and is preferably thin, e.g. 0.25 to 1.5 mm thick to make that easily push the gas generated during the pouring process allow.
- the layer can also be thin because of the second heat-resistant material for the necessary support the layer of the first heat-resistant material, especially if there is liquid metal underneath.
- the layer is made of the second heat-resistant material usually thicker than the layer from the first heat resistant material and can be easily formed by it by first filling the cavities with the first heat-resistant material provided with sand fills copy and then the copy e.g. in a box with sand, so that the whole outside of the copy except the necessary pouring holes is sufficiently covered with sand.
- the sand will preferably no binder added.
- the sand can go on the casting process and the solidification of the metal be removed, taking the sand, if necessary, through shake can be removed from the cavities of the copy.
- the sand is hardly contaminated and can be used without problems reused or disposed of without special measures become.
- it is without in the context of this invention further possible means known to the sand add to the dimensional stability of the sand mass improve especially during the casting process, so that also on the application of the layer from the first heat-resistant material can be dispensed with can.
- the object of the invention is in particular a Heat exchangers with a relatively low heat capacity, a relatively small water content, an excellent one Heat transfer, low weight and one to create low price.
- a Heat exchanger prepared according to the previously described method.
- the heat exchanger according to the invention executed such that the heat exchanger has an integrated Contains outlet channel for the first fluid, the one Has inlet opening and an outlet opening, the Inlet opening of the inlet channel adjoins the outlet opening of the room.
- the heat exchanger has an integrated Contains outlet channel for the first fluid, the one Has inlet opening and an outlet opening, the Inlet opening of the inlet channel adjoins the outlet opening of the room.
- the outlet channel Preferably are in the outlet channel close to it Inlet opening heat conduction elements to improve the Heat transfer from the first fluid to the heat exchanger appropriate.
- the channel extends for the second Fluid around the heat conduction elements Exhaust duct to the heat that in the exhaust duct first fluid is withdrawn, as effectively as possible to the second fluid to transmit.
- the inlet of the room and the Outlet of the outlet channel through a common flange educated. After pouring the heat exchanger needs in In this case, only one flange surface is reworked be what take place in a single processing step can. Any dimensional deviations of the casting have none or little influence on the connections on the mentioned Inlet and outlet opening. If on the flange too mounting components (in the case of a Incinerator: one burner and one Flue gas outlet) before assembly to a composite Components have been assembled, this can assembled component assembled in one operation become. Disassembly of a composite component leads to simplification of maintenance and cleaning of the heat exchanger.
- the heat exchanger is preferably designed such that the cross-section of the room, transverse to the direction of flow of the first Considered fluids in the flow direction of the first Fluid decreases. In this way you can achieve that Flow velocity of the, in its flow direction cooling by heat transfer to the second fluid first fluid always remains high enough to be good To ensure heat transfer.
- the turns of the channel are expedient positioned at a certain distance from each other. thanks this measure is the volume of fluid in the channel, usually water, small. The fluid can therefore be quick be warmed up.
- the heat exchanger is preferably designed such that the protrusions on at least part of the wall of the room are missing, this part of the wall with itself, across to Considered the direction of flow of the first fluid in space, extending, protruding into the room is provided.
- the heat exchanger has fluid to the second fluid according to the invention one or more of the channel wall from projections protruding into the channel.
- Projections in the space for the first fluid can Projections in the canal in a variety of ways be trained (generally such that a Turbulence of the second fluid is generated or increased), for example as cones or ribs.
- Figures 1 to 3 show a copy housing part 2, a Copy housing part 4, a copy housing part 6 and one Copy channel part 8. Include copy case parts 2 and 4 each side walls 10, 12 and 14, a bottom wall 16 and an inner wall 18.
- the side walls 10, part 12a of each of the side walls 12, part 16a of each of the bottom walls 16, and the inner walls 18 one Heat exchange room, its cross section from top to bottom considered decreases.
- the side walls 14, part 12b of each of the side walls 12, part 16b of each of the Bottom walls 16 and the inner walls define one Exhaust duct.
- the side walls 10, 12 and 14 and the Inner wall 18 of each copy housing part terminates at one common edge in the flange 20.
- the flanges 20 ( Figure 2) in turn limit a large opening, inlet opening 22 of the heat exchange room, and a small opening, Called outlet opening 24 of the outlet duct. So is the inlet opening 22 in the same plane as that Outlet opening 24.
- the heat exchange space has a Outlet opening, which with the inlet opening of the Exhaust duct coincides and from the passage between the bottom walls 16 and the inner walls 18 is formed.
- the copy corresponds to one Heat exchanger from the room and the outlet duct certain flow path for the first fluid U-shaped.
- each side wall 12 which is the other Copy housing part 4 faces is in the Heat exchange room a large number of pins 26 in one predetermined pattern attached.
- the pins 26 have in the Figures 1 and 3 a circular cross section; you can but also a different shape, such as one have an oval or rectangular cross-section. Can continue the pins 26 considered different over their length Have cross sections, for example larger at their foot ends than be at their free ends.
- the pins 26 can also by ripping or similar be replaced.
- ribs or similar is always that (in a copy corresponding to Heat exchanger) no fluid flowing past it straight distance from the inlet opening of the room to The outlet opening of the room must be able to travel because hence the heat transfer that goes over the tenons, the fins or similar takes place, demolition would be done.
- pin 27 or the like can to the Copy channel parts 6 or 8 ( Figure 4) or to the Copy housing parts 2 or 4 ( Figure 1) or both types of parts.
- parts of a channel are formed, which parts together one helically around the heat exchange space extending channel 28 with a channel inlet 30 and a Form channel outlet 32. Mentioned parts of the channel can be found in the side walls 10 and the inner walls 18 also not shown in more detail, for example rib-shaped projections be provided.
- the channel parts in the side walls 10 and the inner walls 18 ensure that the wall of the this limited space is partially domed.
- the copy housing parts 2 and 4 and the copy channel parts 6 and 8 are all designed so that they can with the help of a relatively simple shape made of a plastic material without the need to look at a certain angle Release direction of the mold to be used to move moldings must be able to be manufactured. If parts 2 to 8 are formed into a complete copy of the assembled to be manufactured heat exchanger, as in figure 2 is shown. For this, parts 2 to 8 are preferred glued together with a suitable adhesive. in the With regard to the pin 26 it should be noted here that this one can be of such a length and position that, according to the Assembling parts 2 and 4 a bridge between the form respective side walls 12 of parts 2 and 4.
- the Pin sets 26 of different parts 2 and 4 can also be positioned offset from one another and protrude between each other. Another possibility is, that the pin 26 of part 2 and the pin of part 4 probably cursed, but the ends of the cones are not touch each other. In the latter case, the cones of each part 2, 4 different lengths from each other must have to prevent (in one of the copies corresponding heat exchanger) part of the by the Heat exchanger flowing fluid in a direct way from the inflow opening can flow to the outlet opening.
- a second fluid flows in counterflow e.g. Water through channel 28 from inlet port 30 to its outlet opening 32, this second fluid from absorbs heat given off by the first fluid.
- this second fluid At the Corrosion products and condensate arising from heat exchange can the heat exchanger via an outlet opening 34 ( Figure 2) leave.
- Figures 4 and 5 show an embodiment of the copy of a heat exchanger according to the invention, which in wide Areas similar to the copy of Figure 1 to 3 is formed.
- One differentiating point concerns the design of the protrusions 26a, which one have a rectangular cross-section.
- the inner wall 18 partially duplicated to (in one the warmest part corresponding to the copy of the heat exchanger) of the heat exchange space, which is located directly at the inlet opening 22 connects as far as possible from a thermal point of view of the coldest part of the exhaust duct, the Outlet opening 24 immediately preceding to separate.
- Part of the Outlet duct contains, just like the heat exchange space, Projections 26b.
- the channel 28 extends helically around the heat exchange space and at the level of the projections 26b around the outlet duct.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
- Figur 1
- in perspektivischer Darstellung eine erste Ausführungsform einer Kopie des Wärmetauschers gemäß der Erfindung, in auseinander genommener Form
- Figur 2
- in perspektivischer Darstellung die Kopie aus Figur 1 in zusammengesetzter Form,
- Figur 3
- einen Teil der Kopie in Figur 1 in einer Seitenansicht gemäß dem Pfeil III in Figur 1,
- Figur 4
- in perspektivischer Darstellung eine zweite Ausführungsform der Kopie aus auseinander genommener Form eines Wärmetauschers gemäß der Erfindung und
- Figur 5
- in perspektivischer Darstellung die Kopie in Figur 4 in zusammengesetzer Form.
Claims (17)
- Verfahren zur Herstellung eines Wärmetauschers aus Metall, welcher Wärmetauscher umfaßt:einen von einer Wand gebildeten Raum, der mit einer Einlaßöffnung (22) zum Zuführen eines ersten Fluids in den Raum und einer Auslaßöffnung zum Abführen des ersten Fluids aus dem Raum versehen ist;einen sich im wesentlichen schraubenförmig um den Raum erstreckenden Kanal (28) für ein zweites Fluid; undeine Anzahl von Vorsprüngen (26), die von der Wand in den Raum ragen,a) aus einem Kunststoff eine Kopie des Wärmetauschers hergestellt wird, welcher Kunststoff wenigstens bei der Schmelztemperatur des Metalls verdampft;b) die Oberflächen der Kopie mit einer gasdurchlässigen, unterstützenden Schicht aus einem hitzebeständigen Material beschichtet werden; undc) Metall in flüssigem Zustand auf die Kopie innerhalb der gasdurchlässigen Schicht gegossen wird, um den Kunststoff zu verdampfen und den von dem Kunststoff eingenommenen Raum mit dem Metall auszufüllen.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Schritt b) die Schritte umfaßt, daßb1) die Oberflächen der Kopie mit einer gasdurchlässigen Schicht aus einem ersten hitzebeständigen Material beschichtet werden; undb2) die gasdurchlässige Schicht mit einer Schicht aus einem unterstützenden, porösen zweiten hitzebeständigen Material beschichtet wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Kunststoff Polystyrol (EPS) ist.
- Verfahren nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß das erste hitzebeständige Material keramisches Material enthält, insbesondere Siliziumoxid, Alaunerde, Zirkon, Chromit und/ oder Aluminosilikat.
- Verfahren nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß das zweite hitzeständige Material keramisches Material, insbesondere Sand, enthält.
- Wärmetauscher, hergestellt nach dem Verfahren gemäß einer der Ansprüche 1 bis 5.
- Wärmetauscher nach Anspruch 6, dadurch gekennzeichnet, daß dieser einen integrierten Auslaßkanal für das erste Fluid umfaßt, welcher Kanal eine Einlaßöffnung und eine Auslaßöffnung (24) hat, wobei sich die Einlaßöffnung des Auslaßkanals an die Auslaßöffnung des Raumes anschließt.
- Wärmetauscher nach Anspruch 7, dadurch gekennzeichnet, daß in dem Auslaßkanal nahe von dessen Einlaßöffnung Wärmeleitungselemente (26b) angebracht sind.
- Wärmetauscher nach Anspruch 8, dadurch gekennzeichnet, daß sich der Kanal (28) für das zweite Fluid in Höhe der Wärmeleitungselemente (26b) unter anderem um den Auslaßkanal erstreckt.
- Wärmetauscher nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß der von dem Raum und dem Auslaßkanal bestimmte Strömungsweg für das erste Fluid U-förmig ist.
- Wärmetauscher nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß sich die Einlaßöffnung (22) des Raumes in der gleichen Ebene wie die Auslaßöffnung (24) des Auslaßkanals befindet.
- Wärmetauscher nach Anspruch 11, dadurch gekennzeichnet, daß die Einlaßöffnung (22) des Raumes und die Auslaßöffnung (24) des Auslaßkanals von einem einzigen gemeinsamen Flansch gebildet werden.
- Wärmetauscher nach einem der Ansprüche 6 bis 12, dadurch gekennzeichnet, daß der Querschnitt des Raumes, quer zur Strömungsrichtung des darin enthaltenen Fluids betrachtet, in Strömungsrichtung des ersten Fluids abnimmt.
- Wärmetauscher nach einem der Ansprüche 6 bis 13, dadurch gekennzeichnet, daß die Windungen des Kanals (28) zueinander beabstandet sind.
- Wärmetauscher nach einer der Ansprüche 6 bis 14, dadurch gekennzeichnet, daß an wenigstens einem Teil der Raumwand die Vorsprünge fehlen, wobei der Wandteil mit sich quer zur Strömungsrichtung des ersten Fluids im Raum betrachtet erstreckenden, in den Raum ragenden Wölbungen versehen ist.
- Wärmetauscher nach einem der Ansprüche 14 und 15, dadurch gekennzeichnet, daß sich in Höhe der Wölbungen Teile des Kanals befinden.
- Wärmetauscher nach einem der Ansprüche 6 bis 16, dadurch gekennzeichnet, daß einer oder mehrere Vorsprünge von der Kanalwand aus in den Kanal hinein ragen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1010300 | 1998-10-12 | ||
NL1010300A NL1010300C2 (nl) | 1998-10-12 | 1998-10-12 | Werkwijze voor het vervaardigen van een warmtewisselaar, en warmtewisselaar verkregen door toepassing van genoemde werkwijze. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0994313A1 true EP0994313A1 (de) | 2000-04-19 |
EP0994313B1 EP0994313B1 (de) | 2005-03-02 |
Family
ID=19767955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19990203247 Expired - Lifetime EP0994313B1 (de) | 1998-10-12 | 1999-10-04 | Verfahren zur Herstellung eines Wärmetauschers und Wärmetauscher, der durch Anwendung des Verfahrens erhalten wird |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0994313B1 (de) |
NL (1) | NL1010300C2 (de) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101786153A (zh) * | 2010-03-29 | 2010-07-28 | 王增武 | 成组柱型散热器的铸造工艺 |
ITMN20110006A1 (it) * | 2011-03-03 | 2012-09-04 | Cubo D S R L | Scambiatore di calore con percorso dell'acqua in parallelo per caldaie da riscaldamento. |
ITMN20110007A1 (it) * | 2011-03-03 | 2012-09-04 | Cubo D S R L | Scambiatore di calore con percorso dell'acqua a spirale per caldaie da riscaldamento. |
ITMN20110005A1 (it) * | 2011-03-03 | 2012-09-04 | Cubo D S R L | Scambiatore di calore con percorso dell'acqua misto per caldaie da riscaldamento. |
EP1933101A3 (de) * | 2006-12-08 | 2012-09-05 | Vaillant GmbH | Wärmetauscher mit Brennkammer |
WO2012117432A1 (en) * | 2011-03-03 | 2012-09-07 | Cubo D S.R.L. | Heat exchanger for heating boilers |
CN104057029A (zh) * | 2014-07-03 | 2014-09-24 | 宁德东升宏宇科技有限公司 | 高炉风口的制造方法 |
EP3173721A1 (de) * | 2015-11-25 | 2017-05-31 | Daikin Industries, Ltd. | Wärmetauscher |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMN20060076A1 (it) * | 2006-12-22 | 2008-06-23 | Unical Ag Spa | Elemento di scambiatore di calore ottenuto per fusione, e procedimento di preparazione di modelli in polistirolo per la stessa. |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0655667A2 (de) * | 1993-11-29 | 1995-05-31 | Ford Motor Company Limited | Schnelle Herstellung von komplexen Gussteilen |
EP0794393A1 (de) * | 1996-03-08 | 1997-09-10 | Dejatech B.V. | Gegossener, leichtmetaller, polygonaler Wärmetauscher mit spiralförmiger Wasser-leitung |
-
1998
- 1998-10-12 NL NL1010300A patent/NL1010300C2/nl not_active IP Right Cessation
-
1999
- 1999-10-04 EP EP19990203247 patent/EP0994313B1/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0655667A2 (de) * | 1993-11-29 | 1995-05-31 | Ford Motor Company Limited | Schnelle Herstellung von komplexen Gussteilen |
EP0794393A1 (de) * | 1996-03-08 | 1997-09-10 | Dejatech B.V. | Gegossener, leichtmetaller, polygonaler Wärmetauscher mit spiralförmiger Wasser-leitung |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1933101A3 (de) * | 2006-12-08 | 2012-09-05 | Vaillant GmbH | Wärmetauscher mit Brennkammer |
CN101786153A (zh) * | 2010-03-29 | 2010-07-28 | 王增武 | 成组柱型散热器的铸造工艺 |
ITMN20110006A1 (it) * | 2011-03-03 | 2012-09-04 | Cubo D S R L | Scambiatore di calore con percorso dell'acqua in parallelo per caldaie da riscaldamento. |
ITMN20110007A1 (it) * | 2011-03-03 | 2012-09-04 | Cubo D S R L | Scambiatore di calore con percorso dell'acqua a spirale per caldaie da riscaldamento. |
ITMN20110005A1 (it) * | 2011-03-03 | 2012-09-04 | Cubo D S R L | Scambiatore di calore con percorso dell'acqua misto per caldaie da riscaldamento. |
WO2012117432A1 (en) * | 2011-03-03 | 2012-09-07 | Cubo D S.R.L. | Heat exchanger for heating boilers |
CN104057029A (zh) * | 2014-07-03 | 2014-09-24 | 宁德东升宏宇科技有限公司 | 高炉风口的制造方法 |
EP3173721A1 (de) * | 2015-11-25 | 2017-05-31 | Daikin Industries, Ltd. | Wärmetauscher |
WO2017090593A1 (en) * | 2015-11-25 | 2017-06-01 | Daikin Industries, Ltd. | Heat exchanger |
CN108291784A (zh) * | 2015-11-25 | 2018-07-17 | 大金工业株式会社 | 热交换器 |
US11313585B2 (en) * | 2015-11-25 | 2022-04-26 | Daikin Industries, Ltd. | Heat exchanger |
Also Published As
Publication number | Publication date |
---|---|
EP0994313B1 (de) | 2005-03-02 |
NL1010300C2 (nl) | 2000-04-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2925967C2 (de) | Verfahren zum Herstellen eines Rohrwärmetauschers | |
DE3813339C2 (de) | Wärmetauscher für Kraftfahrzeuge und Verfahren zu seiner Herstellung | |
DE2746233A1 (de) | Aus mehreren teilen bestehender verlorener kern fuer metallgiessformen und verfahren zu seiner herstellung | |
DE2638990C3 (de) | Fluiddurchströmtes hohlplattenförmiges Kühlelement | |
EP0994313B1 (de) | Verfahren zur Herstellung eines Wärmetauschers und Wärmetauscher, der durch Anwendung des Verfahrens erhalten wird | |
DE1501590A1 (de) | Waermetauscher und Verfahren zu dessen Herstellung | |
EP0305702A1 (de) | Wärmetauscher mit einer Rippenrohranordnung | |
WO1979000766A1 (en) | Device for heat exchange and manufacturing process thereof | |
DE19906112A1 (de) | Verfahren zur Herstellung eines Wärmetauschers und Wärmetauscher, der durch Anwendung des Verfahrens erhalten wird | |
DE2620515C3 (de) | Gußmetallener Wärmetauscher, insbesondere Zentralheizkessel | |
DE2126226C3 (de) | Wärmeaustauscher | |
DE2844520B2 (de) | Verfahren zum Herstellen eines Rohrwärmetauschers | |
WO1994017338A1 (de) | Heizkessel | |
EP0360090B1 (de) | Gasheizkessel mit atmosphärischem Brenner | |
DE3231211C2 (de) | Einrichtung für eine Brennkammer mit einem Öl- oder Gasbrenner | |
DE4421671A1 (de) | Wärmetauscher, insbesondere für einen gasbeheizten Heizkessel | |
DE3327354A1 (de) | Heizungskessel | |
DE2715268C3 (de) | Wärmeaustauscheinrichtung für eine wärmegebende Primärflüssigkeit und zwei voneinander getrennte wärmeaufnehmende Sekundärmedien | |
DE934246C (de) | Gitterwerk fuer Regeneratoren | |
CH641893A5 (en) | Heat exchanger element, method for producing it, and a heat exchanger | |
DE3819071C1 (de) | ||
DE4446153A1 (de) | Verfahren zur Herstellung eines Wärmetauschers | |
DE3108452C2 (de) | Öl/Gas-Heizkessel | |
DE3736321C1 (en) | Boiler | |
DE4034261C2 (de) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): FR GB IT NL |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 20001019 |
|
AKX | Designation fees paid |
Free format text: FR GB IT NL |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NEFIT BUDERUS B.V. |
|
17Q | First examination report despatched |
Effective date: 20030205 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): FR GB IT NL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050302 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20050302 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20051205 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20120926 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20121127 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20121025 Year of fee payment: 14 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20131004 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20131004 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20140630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20131031 Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20131004 |