EP0994321A2 - Wärmeübertrager für brennstoffbeheizte Wassererhitzer - Google Patents
Wärmeübertrager für brennstoffbeheizte Wassererhitzer Download PDFInfo
- Publication number
- EP0994321A2 EP0994321A2 EP99120228A EP99120228A EP0994321A2 EP 0994321 A2 EP0994321 A2 EP 0994321A2 EP 99120228 A EP99120228 A EP 99120228A EP 99120228 A EP99120228 A EP 99120228A EP 0994321 A2 EP0994321 A2 EP 0994321A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- pipes
- collar
- exchanger according
- water
- 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
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Classifications
-
- 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
-
- 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
- F24H1/26—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 the water mantle forming an integral body
-
- 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
- F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
-
- 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
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/001—Guiding means
- F24H9/0026—Guiding means in combustion gas channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
- F28F1/325—Fins with openings
Definitions
- the invention relates to a heat exchanger according to the preamble of the main claim.
- the fins of the heat exchanger are pushed onto the water-carrying pipes and then z. B. in the vacuum soldering process or by soldering in a H 2 - continuous furnace on the water pipes.
- Such heat exchangers are produced in large numbers, the soldering processes require additional effort, special furnaces are required in which the soldering process can take place.
- the inventive design of the fins according to the features of claim 1 has the advantage that a resilient press fit of the tubes in the through openings of the fins is realized, whereby a soldering or a similar material connection can be largely dispensed with.
- the introduction of the slots, which are distributed radially around the circumference of the lamella openings, does not require an additional work step, since these coincide with the introduction of the openings into the lamellae, for example in the so-called speed nut "process can be produced.
- the contact surfaces that the hot combustion gases are directly applied, additionally through a material connection, in particular can be secured by laser welding.
- the contact area between the water pipes and the fins of the heat exchanger will be more advantageous Way enlarged in that the through openings with enclosing the pipes and from the lamellar plates pulled out collar are provided.
- the pipes in the through openings of the fins further advantageous if the collar is one to the axis of the Passage opening inclined course. A further bending in front of the collar ensures that by the pressing process no undefined fault in the area the through opening is created.
- the conical course of the collar additionally the joining process relieved and the required thermal contact guaranteed.
- Figure 1 is a fireplace insert with one in it arranged heat exchanger shown.
- Figure 2 shows one Partial view of the spacers provided in the slats according to section A-A in Figure 1.
- Figure 3 shows a partial view along the pipe axis provided in the fins Section B-B in Figure 1 according to a first embodiment and
- Figure 4 is a partial view of the in the lamellae provided pipe axis according to section B-B according to a second Embodiment.
- FIG 1 is a gas heated water heater with a Burner 10, a combustion chamber 12 and a heat exchanger 14 shown.
- the heat exchanger 14 has several parallel tubes 16 with a round Cross-section that lead to the water to be heated.
- the Heat exchanger 14 is formed in multiple layers, the in a plane extending pipe sections parallel or are successively flowed through by the water to be heated can.
- a packet of fins 18 sits on the tubes 16, which are spaced apart with a width b. about the gaps 20 that form occur in it combustion gases flowing along in interaction with the water to be heated in the tubes 16 before being used as exhaust gases not cooled the heat exchanger 14 over a Exhaust gas discharge shown.
- the slats 18 have in the edge region of the Through openings evenly distributed over the circumference Radial slots 22 on the edge area in several Subdivide edge segments 24. These radial slots 22 or the forming edge segments 24 can be in one so-called "speed nut” process together with the Through openings for the water pipes 16 in be produced in one work step.
- the size of the in the slats 18 introduced through openings are with matched the diameter of the water-carrying pipes 16 so that the edge segments 24 clamp on the surface of the sit on water-carrying pipes 16 ( Figure 3).
- the Edge areas of the through openings of the lamellae 18 additionally provided with a collar 26. Like that in Figure 1 shows the temperature level shown, this is Slat area with a temperature of approx. 1200 ° C acted upon.
- the collar 26 in this area Contact surface or the heat conduction to the water-bearing Pipes 16 enlarged, which ensures a long life of the Connection is also guaranteed in this area.
- the edge segment area of the first layer of the heat exchanger 14, which is directly exposed to the hot combustion gases, is additionally achieved by laser welding with the connected water pipe 16. So that will ensures that even in the so-called “dry-go case", d. H. there is temporarily no water in the tube 16, one good heat-dissipating connection is retained, one local overheating of the heat exchanger 14 prevented.
- FIG. 4 Another embodiment for realizing a resilient press fit of the tubes 16 in the through openings shows Figure 4.
- the collar 26 has one to the axis the through opening inclined course 41 so that a conically narrowing through opening is created.
- An additional one Collar 26 upstream bend 43 ensure that by the pressing process no undefined distortion in the area the through opening is created.
- spacers 28 are used.
- the spacers 28 are produced in that in the Slats 18 openings 30 are introduced such that the exhibitions 32 each created at the support adjacent lamella 18.
- the Diameter of these spacers 28 in the edge areas of the heat exchanger 14 is larger than inside of the heat exchanger 14.
- the exhibitions 32 contribute a swirling of the combustion gases, whereby the Efficiency of heat transfer is increased.
- the one in figure 2 arched exhibitions 32 shown support the Flow diversion or swirling.
- the combustion chamber 12 of the gas-heated water heater 14 is provided with water-carrying channels 34, the hydraulic with the water-carrying pipes 16 of the heat exchanger 14 are connected.
Landscapes
- 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)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
Description
Claims (6)
- Wärmeübertrager für brennstoffbeheizte Wassererhitzer mit wasserführenden Rohren und einem von den Rohren durchsetzten Paket aus Lamellen, die zwischen sich Spalte zum Durchtritt der Verbrennungsgase bilden, dadurch gekennzeichnet, daß der Randbereich der Durchgangsöffnungen der Lamellen (18) mit von der Durchgangsöffnung ausgehenden, über den Umfang verteilten Radialschlitzen (22) versehen ist, die den Randbereich der Durchgangsöffnung in mehrere Randsegmente (24) unterteilt, die klemmend auf den Rohren (16) aufsitzen.
- Wärmeübertrager nach Anspruch 1, dadurch gekennzeichnet, daß die kraftschlüssige Verbindung zwischen den Randsegmenten (24) und den wasserführenden Rohren (16) im heißesten Bereich des Wärmeübertragers (14) zusätzlich durch eine stoffliche Verbindung, insbesondere durch Laserschweißen, gesichert ist.
- Wärmeübertrager nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Durchgangsöffnungen zumindest im heißesten Bereich des Wärmeübertragers (14) zumindest teilweise mit die Rohre (16) umschließenden und aus den Lamellenblechen herausgezogenen Kragen (26) versehen sind.
- Wärmeübertrager nach Anspruch 3, dadurch gekennzeichnet, daß der Kragen (26) einen zur Achse der Durchgangsöffnung hin geneigten Verlauf (41) aufweist, derart, daß eine sich konisch verjüngende Durchgangsöffnung entsteht.
- Wärmeübertrager nach Anspruch 1 oder 4, dadurch gekennzeichnet, daß dem Kragen (41) zur Lamellenfläche hin eine von der Lamellenfläche zum Kragen (26) hin geneigte Anbiegung (43) vorgelagert ist.
- Wärmeübertrager nach einem der vorgehenden Ansprüche, dadurch gekennzeichnet, daß in den Lamellen (18) Ausstellungen (32) vorgesehen sind, die als Abstandshalter (28) den Spaltabstand (b) zwischen den Lamellen (18) definieren.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29818228U | 1998-10-13 | ||
DE29818228U DE29818228U1 (de) | 1998-10-13 | 1998-10-13 | Wärmeübertrager für brennstoffbeheizte Wassererhitzer |
DE19946604A DE19946604A1 (de) | 1998-10-13 | 1999-09-29 | Wärmeübertrager für brennstoffbeheizte Wassererhitzer |
DE19946604 | 1999-09-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0994321A2 true EP0994321A2 (de) | 2000-04-19 |
EP0994321A3 EP0994321A3 (de) | 2000-12-20 |
EP0994321B1 EP0994321B1 (de) | 2004-08-18 |
Family
ID=26055100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19990120228 Expired - Lifetime EP0994321B1 (de) | 1998-10-13 | 1999-10-11 | Wärmeübertrager für brennstoffbeheizte Wassererhitzer |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0994321B1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101033927B (zh) * | 2007-04-10 | 2010-12-08 | 宁波方太厨具有限公司 | 高效热水器换热片 |
WO2012175217A1 (de) * | 2011-06-24 | 2012-12-27 | Thomas Pollmeier | Rippenrohr und verfahren zu seiner herstellung |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020056651A1 (zh) * | 2018-09-19 | 2020-03-26 | 苏州明志科技有限公司 | 一种铝合金热交换器及其制备方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2110811A (en) * | 1981-11-28 | 1983-06-22 | Salter & Co Ltd G | Finned tube heat exchanger members |
GB2146939A (en) * | 1983-09-26 | 1985-05-01 | Huetoetechnika Ipari Szoevetke | Device for fixing heat-exchanger plates to their carrying pipes |
US4830102A (en) * | 1980-03-11 | 1989-05-16 | Kulkereskedelmi Transelektro Magyar Villamossagi Vallalat | Turbulent heat exchanger |
DE29702918U1 (de) * | 1996-02-19 | 1997-04-03 | Joh. Vaillant Gmbh U. Co, 42859 Remscheid | Lamellenwärmetauscher |
DE19626321A1 (de) * | 1996-07-01 | 1998-01-08 | Bosch Gmbh Robert | Gasbeheizter Umlauf-Wasserheizer |
-
1999
- 1999-10-11 EP EP19990120228 patent/EP0994321B1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4830102A (en) * | 1980-03-11 | 1989-05-16 | Kulkereskedelmi Transelektro Magyar Villamossagi Vallalat | Turbulent heat exchanger |
GB2110811A (en) * | 1981-11-28 | 1983-06-22 | Salter & Co Ltd G | Finned tube heat exchanger members |
GB2146939A (en) * | 1983-09-26 | 1985-05-01 | Huetoetechnika Ipari Szoevetke | Device for fixing heat-exchanger plates to their carrying pipes |
DE29702918U1 (de) * | 1996-02-19 | 1997-04-03 | Joh. Vaillant Gmbh U. Co, 42859 Remscheid | Lamellenwärmetauscher |
DE19626321A1 (de) * | 1996-07-01 | 1998-01-08 | Bosch Gmbh Robert | Gasbeheizter Umlauf-Wasserheizer |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101033927B (zh) * | 2007-04-10 | 2010-12-08 | 宁波方太厨具有限公司 | 高效热水器换热片 |
WO2012175217A1 (de) * | 2011-06-24 | 2012-12-27 | Thomas Pollmeier | Rippenrohr und verfahren zu seiner herstellung |
Also Published As
Publication number | Publication date |
---|---|
EP0994321B1 (de) | 2004-08-18 |
EP0994321A3 (de) | 2000-12-20 |
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