EP3220073A1 - Helical heat exchanger - Google Patents
Helical heat exchanger Download PDFInfo
- Publication number
- EP3220073A1 EP3220073A1 EP17160718.7A EP17160718A EP3220073A1 EP 3220073 A1 EP3220073 A1 EP 3220073A1 EP 17160718 A EP17160718 A EP 17160718A EP 3220073 A1 EP3220073 A1 EP 3220073A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- coils
- exchanger coils
- partition plate
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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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
- F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
Definitions
- the invention relates to a heating heat exchanger.
- a plurality of similar heat exchanger coils are arranged coaxially one behind the other.
- Each heat exchanger coil has an input and an output.
- the heat exchanger coils may be partially connected in parallel, so that in each case the inputs and outputs of adjacent heat exchanger coils are connected to each other in flow and return headers.
- the helices may also be connected in series so that the output of a heat exchanger coil is connected to the input of an adjacent heat exchanger coil.
- a plurality of blocks of parallel-connected heat exchanger coils may be serially connected such that the flow header of a block of parallel-connected heat exchanger coils is connected to the return header of an adjacent block of parallel-connected heat exchanger coils.
- an exhaust collecting housing is mounted around the heat exchanger coils.
- a burner is mounted centrally on one side over a partial length.
- a partition separates the interior of the coils into two chambers. During operation of the burner, the hot exhaust gases of the burner on one side of the partition flow from the inside through part of the heat exchanger coils then to flow on the other side of the partition from outside to inside through the heat exchanger coils. The exhaust gases are collected after the heat exchange and then discharged via an exhaust pipe.
- the dividing wall becomes very hot and, on the one hand, already heats cooled exhaust gas on the side facing away from the burner.
- the partition radiates radiant heat via the exhaust gas discharge.
- the object of the invention is a higher thermal efficiency of the heat exchanger.
- FIG. 1 shows a heater core 1 with a housing 8 and a centrally disposed therein metallic primary heat exchanger 2, which has four coaxially arranged heat exchanger coils 3.
- the housing 8 is approximately cylindrical, so that the two outer juxtaposed heat exchanger coils 3 with the respective end walls 15, 16 are flush. Radial to the heat exchanger coils 3 is up to the housing 8, an annular gap 17.
- the individual heat exchanger coils 3 are made EP 678186 B1 known.
- a fuel gas burner 9 is arranged coaxially to the heat exchanger coils 3.
- the burner 9 is arranged on the first end wall 15 of the housing 8 perpendicular to the central axis of the heat exchanger coils 3.
- Each heat exchanger coil 3 has an input 4 and an output 5.
- each case two heat exchanger coil 3 are fluidically interconnected, so that their inputs 4 are fed from a common return collector 6 and the Outputs 5 lead into a common flow collector 7.
- the return line 12 of a heating circuit is connected to the return header 6 of the two heat exchanger coils 3 on the side of the exhaust gas outlet 10.
- the flow collector 7 of the two heat exchanger coils 3 on the side of the exhaust gas outlet 10 is connected to the return header 6 of the two heat exchanger coils 3 on the side of the burner 9.
- the flow collector 7 of the two heat exchanger coils 3 on the side of the burner 9 is connected to the flow line 13 of the heating circuit not shown.
- a partition plate 11 is arranged between two heat exchanger coils 3, which separates the interior of the heat exchanger coils 3 into two subspaces.
- the partition plate 11 consists of two opposite plates, which form a water channel.
- the partition plate 11 is connected both to the flow collector 7 and return collector 6 on the side of the exhaust gas outlet 10.
- FIG. 2 shows this connection.
- Parallel to the partition plate 11, the heat exchanger coil 3 opens on the side of the exhaust gas outlet 10 in the same flow 7 and return collector. 6
- FIG. 3 the flow pattern in the water-cooled partition plate 11 from the input 4 to the output 5 is shown.
- a so-called ying-yang water supply 14 provides for a Multiple diversion to avoid dead water areas and to allow a flow through the entire area.
- a meander-shaped flow guide is suitable for this purpose.
- the hot exhaust gases initially flow outward on the side of the partition plate 11 remote from the exhaust gas outlet 10 through the heat exchanger coils 3 and release thermal energy to the heat exchanger coils 3. Part of the energy is also delivered to the partition plate 11 via radiation and convection.
- the exhaust gases are then directed on the side facing away from the burner 9 of the heat exchanger coils 3 to the heat exchanger coils 3 next to the exhaust gas outlet 10 and flow through the local heat exchanger coils 3 inside and give this thermal energy to the heat exchanger coils 3 from.
- thermal energy is transferred to the water-cooled partition plate 11 here as well.
- the cooled exhaust gases flow through the exhaust outlet 10, from where they are conducted into the environment.
- the partition plate 11 may optionally have a contour or ribs on the outside to increase the heat exchanger area.
- the number of heat exchanger coils 3 varies; the greater the power, the more heat exchanger area needed to transmit the thermal power.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
Bei einem Heizungswärmetauscher (1) mit einem Gehäuse (8) mit zwei Stirnwänden (15) und einen zwischen den Stirnwänden (15, 16) zentral angeordneten Primärwärmeaustauscher (2), der über mindestens zwei koaxial nebeneinander angeordnete Wärmetauscherwendeln (3) verfügt, schließen die beiden äußeren Wärmetauscherwendeln (3) mit den jeweiligen Stirnwänden (15, 16) weitestgehend bündig ab. Radial um die Wärmetauscherwendeln (3) bis zum Gehäuse (8) ist ein Ringspalt (16) vorhanden. In der ersten Stirnwand (15) ist eine Aufnahme für einen Brenner (9) vorhanden und die zweite Stirnwand (16) verfügt über einen Abgasaustritt (10). Zwischen zwei Wärmetauscherwendeln (3) ist eine Trennplatte (11) angeordnet. Diese Trennwand (11) ist als Hohlkörper ausgeführt und mit den Wärmetauscherwendeln (3) fluidseitig seriell und / oder parallel verbunden.In a heating heat exchanger (1) with a housing (8) with two end walls (15) and between the end walls (15, 16) centrally arranged primary heat exchanger (2), which has at least two coaxially juxtaposed heat exchanger coils (3) close the both outer heat exchanger coils (3) with the respective end walls (15, 16) largely flush. Radially around the heat exchanger coils (3) to the housing (8) has an annular gap (16) is present. In the first end wall (15) there is a receptacle for a burner (9) and the second end wall (16) has an exhaust gas outlet (10). Between two heat exchanger coils (3), a partition plate (11) is arranged. This partition wall (11) is designed as a hollow body and connected to the heat exchanger coils (3) in series and / or in parallel on the fluid side.
Description
Die Erfindung bezieht sich auf einen Heizungswärmetauscher.The invention relates to a heating heat exchanger.
Bei derartigen Heizungswärmetauschern, die beispielsweise aus
Die Trennwand wird hierbei je nach Betriebszustand sehr heiß und erwärmt einerseits bereits abgekühltes Abgas auf der dem Brenner abgewandten Seite. Andererseits gibt die Trennwand Strahlungswärme über die Abgasabführung ab.Depending on the operating state, the dividing wall becomes very hot and, on the one hand, already heats cooled exhaust gas on the side facing away from the burner. On the other hand, the partition radiates radiant heat via the exhaust gas discharge.
Aufgabe der Erfindung ist ein höherer thermischer Wirkungsgrad des Wärmetauschers.The object of the invention is a higher thermal efficiency of the heat exchanger.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Trennwand wassergekühlt und fluidführend thermisch vorteilhaft in das System eingebunden wird.This object is achieved in that the partition is water cooled and fluid carrying thermally advantageous integrated into the system.
Vorteilhafte Ausgestaltungen ergeben sich aus den Merkmalen der abhängigen Ansprüche.Advantageous embodiments result from the features of the dependent claims.
Die Erfindung wird anhand der Figuren näher erläutert. Hierbei zeigen
-
Figur 1 einen erfindungsgemäßen Heizungswärmetauscher im Schnitt, -
den erfindungsgemäßen Heizungswärmetauscher im Schnitt senkrecht zum ersten Schnitt,Figur 2 -
die wassergekühlte Trennplatte des erfindungsgemäßen Heizungswärmetauschers.Figur 3
-
FIG. 1 a heating heat exchanger according to the invention in section, -
FIG. 2 the heating heat exchanger according to the invention in section perpendicular to the first section, -
FIG. 3 the water-cooled partition plate of the heating heat exchanger according to the invention.
In
Beim Betrieb des Brenners 9 strömen dessen heiße Abgase zunächst auf der dem Abgasaustritt 10 abgewandten Seite der Trennplatte 11 durch die Wärmetauscherwendeln 3 nach außen und geben thermische Energie an die Wärmetauscherwendeln 3 ab. Ein Teil der Energie wird auch über Strahlung und Konvektion an die Trennplatte 11 abgegeben. Die Abgase werden dann auf der dem Brenner 9 abgewandten Seite der Wärmetauscherwendeln 3 zu den Wärmetauscherwendeln 3 neben dem Abgasaustritt 10 gelenkt und strömen durch die dortigen Wärmetauscherwendeln 3 nach innen und geben hierbei thermische Energie an die Wärmetauscherwendeln 3 ab. Ferner wird auch hier thermische Energie auf die wassergekühlte Trennplatte 11 übertragen. Letztendlich strömen die abgekühlten Abgase durch den Abgasaustritt 10, von wo sie in die Umgebung geleitet werden.During operation of the burner 9, the hot exhaust gases initially flow outward on the side of the
Um die Abgase des Brenners 9 möglichst weit abzukühlen, ist es sinnvoll, wenn der Rücklauf des Heizungskreislaufs mit der Wärmetauscherwendel 3 auf der Seite des Abgasaustritts 10 sowie der Trennplatte 11 verbunden ist und die Wärmetauscherwendeln 3 auf der Seite des Brenners 9 mit dem Vorlauf des Heizungskreislaufs.To cool the exhaust gases of the burner 9 as far as possible, it makes sense if the return of the heating circuit is connected to the
Die Trennplatte 11 hat in der Regel den gleichen Umfang wie die Wärmetauscherwendeln 3. Sie kann jedoch auch kleiner sein und lediglich derart in die Wärmetauscherwendeln 3 von innen hineinragen, dass ein direkter Abgasstrom vom Brenner 9 zum Abgasaustritt 10 ohne Durchströmung der Wärmetauscherwendeln 3 verhindert wird.However, it can also be smaller and protrude only in such a way in the
Die Trennplatte 11 kann optional auf der Außenseite über eine Kontur oder Rippen verfügen, um die Wärmetauscherfläche zu vergrößern.The
Je nach Leistung des Brenners 9 variiert die Anzahl der Wärmetauscherwendeln 3; je größer die Leistung ist, desto mehr Wärmetauscherfläche wird zur Übertragung der thermischen Leistung benötigt.Depending on the power of the burner 9, the number of
- 1 Heizungswärmetauscher1 heating heat exchanger
- 2 Primärwärmeaustauscher2 primary heat exchangers
- 3 Wärmetauscherwendel3 heat exchanger coil
- 4 Eingang4 entrance
- 5 Ausgang5 output
- 6 Rücklaufsammler6 return collectors
- 7 Vorlaufsammler7 flow collectors
- 8 Gehäuse8 housing
- 9 Brenner9 burners
- 10 Abgasaustritt10 exhaust outlet
- 11 Trennplatte11 separating plate
- 12 Rücklaufleitung12 return line
- 13 Vorlaufleitung13 flow line
- 14 ying-yang-Wasserführung14 ying-yang waterway
- 15 erste Stirnwand15 first end wall
- 16 zweite Stirnwand16 second end wall
- 17 Ringspalt17 annular gap
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016204130 | 2016-03-14 | ||
DE102016215210.6A DE102016215210A1 (en) | 2016-08-16 | 2016-08-16 | Helical heating heat exchanger |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3220073A1 true EP3220073A1 (en) | 2017-09-20 |
Family
ID=58358362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17160718.7A Withdrawn EP3220073A1 (en) | 2016-03-14 | 2017-03-14 | Helical heat exchanger |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP3220073A1 (en) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2056738U (en) * | 1989-10-10 | 1990-05-02 | 胡宁江 | Household water heater |
EP0678186B1 (en) | 1993-01-15 | 1997-03-12 | Joseph Le Mer | Heat exchanger element and method and device for producing same |
KR100813807B1 (en) * | 2007-06-13 | 2008-03-13 | 린나이코리아 주식회사 | Heat exchanger structure of condensing boiler |
KR100857001B1 (en) * | 2007-06-13 | 2008-09-04 | 린나이코리아 주식회사 | Heat exchanger structure of condensing boiler |
EP2096372A2 (en) * | 2008-03-01 | 2009-09-02 | Robert Bosch GmbH | Heating device |
EP2306113A2 (en) * | 2009-09-29 | 2011-04-06 | Viessmann Werke GmbH & Co. KG | Heating device |
US20110185985A1 (en) * | 2010-02-03 | 2011-08-04 | Farshid Ahmady | Fluid heating apparatus |
EP1561075B1 (en) | 2002-10-16 | 2013-05-01 | Giannoni France | Condensation heat exchanger with plastic casing |
EP2840328A1 (en) * | 2013-08-21 | 2015-02-25 | Vaillant GmbH | Heating apparatus with a thermoelectric module |
DE102013111773A1 (en) * | 2013-10-25 | 2015-04-30 | Viessmann Werke Gmbh & Co Kg | boiler |
-
2017
- 2017-03-14 EP EP17160718.7A patent/EP3220073A1/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2056738U (en) * | 1989-10-10 | 1990-05-02 | 胡宁江 | Household water heater |
EP0678186B1 (en) | 1993-01-15 | 1997-03-12 | Joseph Le Mer | Heat exchanger element and method and device for producing same |
EP1561075B1 (en) | 2002-10-16 | 2013-05-01 | Giannoni France | Condensation heat exchanger with plastic casing |
KR100813807B1 (en) * | 2007-06-13 | 2008-03-13 | 린나이코리아 주식회사 | Heat exchanger structure of condensing boiler |
KR100857001B1 (en) * | 2007-06-13 | 2008-09-04 | 린나이코리아 주식회사 | Heat exchanger structure of condensing boiler |
EP2096372A2 (en) * | 2008-03-01 | 2009-09-02 | Robert Bosch GmbH | Heating device |
EP2306113A2 (en) * | 2009-09-29 | 2011-04-06 | Viessmann Werke GmbH & Co. KG | Heating device |
US20110185985A1 (en) * | 2010-02-03 | 2011-08-04 | Farshid Ahmady | Fluid heating apparatus |
EP2840328A1 (en) * | 2013-08-21 | 2015-02-25 | Vaillant GmbH | Heating apparatus with a thermoelectric module |
DE102013111773A1 (en) * | 2013-10-25 | 2015-04-30 | Viessmann Werke Gmbh & Co Kg | boiler |
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Effective date: 20180321 |