EP2674675B1 - Heating device with a recuperator and an exhaust gas adaptor - Google Patents
Heating device with a recuperator and an exhaust gas adaptor Download PDFInfo
- Publication number
- EP2674675B1 EP2674675B1 EP13170551.9A EP13170551A EP2674675B1 EP 2674675 B1 EP2674675 B1 EP 2674675B1 EP 13170551 A EP13170551 A EP 13170551A EP 2674675 B1 EP2674675 B1 EP 2674675B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust
- recuperator
- adapter
- pipe connection
- exhaust pipe
- 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.)
- Active
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/02—Linings; Jackets; Casings
- F23J13/025—Linings; Jackets; Casings composed of concentric elements, e.g. double walled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/04—Joints; Connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
- F28D21/0005—Recuperative heat exchangers the heat being recuperated from exhaust gases for domestic or space-heating systems
- F28D21/0007—Water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2211/00—Flue gas duct systems
- F23J2211/10—Balanced flues (combining air supply and flue gas exhaust)
- F23J2211/101—Balanced flues (combining air supply and flue gas exhaust) with coaxial duct arrangement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2213/00—Chimneys or flues
- F23J2213/20—Joints; Connections
- F23J2213/203—Joints; Connections between stack/duct and combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/16—Waste heat
- F24D2200/18—Flue gas recuperation
Definitions
- Fuel-operated heaters with recuperators to increase efficiency are known from the prior art.
- the exhaust gas of a heating burner which has been cooled in a first heat exchanger, further cooled by means of cold process water. While by means of heating water, the exhaust gas can be minimally cooled to the heating return temperature, the waste gas can be cooled down to a minimum of the temperature of the cold process water during process water cooling.
- Heaters with recuperators are known from the prior art.
- a conventional, wall-mounted heater can be supplemented by a recuperator, which is mounted between the heater and the wall, so that the heater is attached to the wall-mounted recuperator. This creates a compact unit with few attachment points on the wall.
- the invention has for its object to provide a compact connection for a gas-fired heater with recuperator, by means of which existing installations can be used.
- FIGS. 1 to 3 show from above, the side and from behind a fuel-fired heater 2, which is connected to its heater housing 3 to a recuperator 5 of a recuperator 4 via the recuperator front 10 via fastening means not shown in detail.
- a fuel-fired heater 2 which is connected to its heater housing 3 to a recuperator 5 of a recuperator 4 via the recuperator front 10 via fastening means not shown in detail.
- At the Rekuperator Wegwand 9 not shown in detail means are mounted on the wall.
- the heater 2 has an upwardly directed Schuungsabgasrohran gleich 6, the recuperator 4 via an exhaust gas inlet 7 and an exhaust outlet 8.
- An exhaust gas adapter 1 connects the Schuungsabgasrohran gleich 6 of the heater 2 with the exhaust gas inlet 7 of the recuperator 4 and the exhaust gas outlet 8 of the recuperator 4 with a Adapter exhaust pipe connection 11, wherein the direction of the mouth of the Edelungsabgasrohran gleiches 6 and the direction of the mouth of the AdapterabrohrrohranInstitutes 11 form a right angle and also lie in a plane perpendicular to the Rekuperatorschreibwand 9.
- the exhaust gas adapter 1 which connects the heater exhaust pipe connection 6 with the exhaust gas inlet 7 of the recuperator 4 and the exhaust gas outlet 8 of the recuperator 4 with the adapter exhaust pipe connection 11 by means of exhaust pipes 12, surrounds - as in FIGS FIGS. 1 to 3 shown - this exhaust pipes 12 fresh air.
- the exhaust adapter 1 connect the Schuungsabgasrohran gleich 6 with the exhaust gas inlet 7 of the recuperator 4 and the exhaust outlet 8 of the recuperator 4 with the adapter exhaust pipe 11 in coaxial lines, the exhaust pipes 12 are surrounded by fresh air ducts 13
- the exhaust gas adapter 1 has the same extent as a standard exhaust gas bend from the inlet connectable to the heating exhaust gas pipe connection 6 to the adapter exhaust gas pipe connection 11. This ensures that standard exhaust pipes can be used to connect the combination of heater 2 and recuperator 4 use.
- the exhaust adapter 1 has from the connectable to the Walkerungsabgasrohran gleich 6 entrance to the adapter exhaust pipe 11 over the same horizontal extent as the sum of the depth t of the Rekuperatorgeophuses 5, resulting from the distance between Rekuperator Wegwand 9 and Rekuperatorvorderseite 10, plus a standard exhaust bend.
- a simple supplement is possible.
- a mounted heater 2 can be dismantled, connected to the recuperator 4 and connected via the exhaust adapter 1 again with the existing exhaust pipe.
- For a new installation standard components can be used.
- the exhaust gases of the heating device 2 which have delivered thermal energy to a heating circuit in a primary heat exchanger, not shown, and thus minimized to heating return temperature, through the Schuungsabgasrohran gleich 6 via the exhaust adapter 1 in the exhaust gas inlet 7 of the recuperator 4.
- the recuperator 4 are the exhaust gas in a heat exchanger, not shown, from further thermal energy to fresh hot water.
- the hot water heated in this way flows out of the recuperator 4 to the heating device 2, where it is further heated to the set temperature in a conventional manner.
- the thus further cooled exhaust gas flows from the exhaust gas outlet 8 of the recuperator 4 via the exhaust gas adapter 1 to the adapter exhaust pipe connection 11 and from there via a not shown exhaust pipe into the environment.
- Fresh air flows from the coaxial exhaust pipe via the exhaust adapter 1 directly to the heater 2.
- Fresh air flows in the variant according to FIGS. 4 and 5 Fresh air from the coaxial exhaust pipe via the exhaust adapter 1 first in the recuperator 4 and from there to the heater 2.
- the last-mentioned variant provides an air jacket in the recuperator 4 for heat recovery of the heat losses of the recuperator 4 in the fresh air.
- the principle is that the warmer medium can be minimally cooled to a temperature above the temperature of the colder medium, the maximum heat transfer is achieved in a countercurrent flow.
- Exhaust gases of conventional natural gas powered heating burner 2 have a water vapor content of about 105 grams of water vapor per dry kilogram of exhaust gas. The dew point of the exhaust gas is around 55 ° C.
- the outside air temperature is lower than the hot water temperature, so that in the recuperator heat can be transferred from the exhaust gas to the fresh air again. Since the exhaust gases in the heat exchanger of the heating device 2 are already cooled to a temperature well below 100 ° C, there is no risk of overheating in the recuperator 3, if it can no longer absorb heat.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Supply (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
Brennstoffbetriebene Heizgeräte mit Rekuperatoren zur Wirkungsgradsteigerung sind aus dem Stand der Technik bekannt. Dabei wird das Abgas eines Heizungsbrenners, das in einem ersten Wärmetauscher abgekühlt wurde, mittels kalten Brauchwassers weiter abgekühlt. Während mittels Heizungswasser das Abgas minimal auf Heizungsrücklauftemperatur abgekühlt werden kann, kann bei Brauchwasserkühlung das Abgas auf minimal die Temperatur des kalten Brauchwassers abgekühlt werden.Fuel-operated heaters with recuperators to increase efficiency are known from the prior art. In this case, the exhaust gas of a heating burner, which has been cooled in a first heat exchanger, further cooled by means of cold process water. While by means of heating water, the exhaust gas can be minimally cooled to the heating return temperature, the waste gas can be cooled down to a minimum of the temperature of the cold process water during process water cooling.
Heizgeräte mit Rekuperatoren sind aus dem Stand der Technik bekannt. In einer vorteilhaften Ausgestaltung kann ein konventionelles, wandhängendes Heizgerät durch einen Rekuperator ergänzt werden, welcher zwischen das Heizgerät und die Wand montiert wird, so dass das Heizgerät am an der Wand montierten Rekuperator befestigt wird. Hierdurch entsteht eine kompakte Einheit mit wenigen Befestigungspunkten an der Wand.Heaters with recuperators are known from the prior art. In an advantageous embodiment, a conventional, wall-mounted heater can be supplemented by a recuperator, which is mounted between the heater and the wall, so that the heater is attached to the wall-mounted recuperator. This creates a compact unit with few attachment points on the wall.
Hierbei ergibt sich das Problem, dass - insbesondere beim Nachrüsten - das Abgas des Heizgerätes kompakt in den Rekuperator und von diesem in die vorhandenen Anschlüsse einer Abgasanlage geleitet werden müssen.This results in the problem that - especially when retrofitting - the exhaust gas of the heater must be compactly routed into the recuperator and from this into the existing connections of an exhaust system.
Der Erfindung liegt die Aufgabe zugrunde, einen kompakten Anschluss für ein brenngasbetriebenes Heizgerät mit Rekuperator zu schaffen, mittels dessen vorhandene Installationen weiter benutzt werden können.The invention has for its object to provide a compact connection for a gas-fired heater with recuperator, by means of which existing installations can be used.
Dies wird gemäß den Merkmalen des unabhängigen Anspruchs 1 dadurch gelöst, dass bei einem Heizgerät mit Rekuperator ein Abgasadapter derart gestaltet ist, dass der Abgasadapter das Heizgerät mit dem Rekuperator derart verbindet, dass die Kombination wie ein konventionelles Heizgerät mit einem konventionellen 90°-Abgasrohrbogen an ein konventionelles Abgasrohr angeschlossen werden kann.This is achieved according to the features of
Vorteilhafte Ausgestaltungen der Erfindung ergeben sich durch die Merkmale der abhängigen Ansprüche.Advantageous embodiments of the invention will become apparent from the features of the dependent claims.
Die Erfindung wird nun anhand der Figuren detailliert erläutert. Hierbei zeigen
-
das erfindungsgemäße Heizgerät mit der Kombination aus Abgasadapter und Rekuperator von oben,Figur 1 -
denselben Gegenstand von der Seite,Figur 2 -
denselben Gegenstand von vorne,Figur 3 -
ein alternatives, erfindungsgemäßes Heizgerät von oben undFigur 4 -
das alternative Heizgerät von der Seite.Figur 5
-
FIG. 1 the heater according to the invention with the combination of exhaust adapter and recuperator from above, -
FIG. 2 the same object from the side, -
FIG. 3 the same object from the front, -
FIG. 4 an alternative, inventive heater from above and -
FIG. 5 the alternative heater from the side.
Die
Der Abgasadapter 1, der den Heizungsabgasrohranschluss 6 mit dem Abgaseintritt 7 des Rekuperators 4 und den Abgasaustritt 8 des Rekuperators 4 mit dem Adapterabgasrohranschluss 11 mittels Abgasleitungen 12 verbindet, umgibt - wie in den
Alternativ kann - wie in den
Der Abgasadapter 1 verfügt bei beiden Varianten vom mit dem Heizungsabgasrohranschluss 6 verbindbaren Eintritt bis zum Adapterabgasrohranschluss 11 über die gleiche Erstreckung wie ein Standardabgasbogen. Hierdurch ist gewährleistet, dass Standardabgasrohre zum Anschluss der Kombination aus Heizgerät 2 und Rekuperator 4 Verwendung finden kann.In both variants, the
Der Abgasadapter 1 verfügt vom mit dem Heizungsabgasrohranschluss 6 verbindbaren Eintritt bis zum Adapterabgasrohranschluss 11 über die gleiche horizontale Erstreckung wie die Summe der Tiefe t des Rekuperatorgehäuses 5, die sich aus dem Abstand zwischen Rekuperatorrückwand 9 und Rekuperatorvorderseite 10 ergibt, plus einem Standardabgasbogen. Somit ist eine einfache Ergänzung möglich. Bei einer Nachrüstung kann ein montiertes Heizgerät 2 demontiert, mit dem Rekuperator 4 verbunden und über den Abgasadapter 1 wieder mit der bereits vorhandenen Abgasleitung verbunden werden. Bei einer Neumontage können Standardkomponenten verwendet werden.The
Beim Heizungsbetrieb strömen die Abgase des Heizungsgerätes 2, welche in einem nicht dargestellten Primärwärmetauscher thermische Energie auf einen Heizungskreislauf abgegeben haben und somit minimal auf Heizungsrücklauftemperatur abgekühlt werden, durch den Heizungsabgasrohranschluss 6 über den Abgasadapter 1 in den Abgaseintritt 7 des Rekuperators 4. Im Rekuperator 4 gibt das Abgas in einem nicht dargestellten Wärmetauscher weitere thermische Energie an frisches Brauchwasser ab. Das so aufgeheizte Brauchwasser strömt aus dem Rekuperator 4 zum Heizungsgerät 2, wo es in konventioneller Art weiter auf Solltemperatur erhitzt wird. Das somit weiter abgekühlte Abgas strömt aus dem Abgasaustritt 8 des Rekuperators 4 über den Abgasadapter 1 zu dem Adapterabgasrohranschluss 11 und von dort über eine nicht weiter dargestellte Abgasleitung in die Umgebung.In the heating mode, the exhaust gases of the
Bei der Variante gemäß den
Wie bei jedem Wärmetauscher gilt der Grundsatz, dass das wärmere Medium minimal auf eine Temperatur oberhalb der Temperatur des kälteren Mediums abgekühlt werden kann, wobei die maximale Wärmeübertragung bei einer Durchströmung im Gegenstromprinzip erreicht wird. Abgase üblicher erdgasbetriebener Heizungsbrenner 2 besitzen einen Wasserdampfanteil von etwa 105 Gramm Wasserdampf pro trockenes Kilogramm Abgas. Der Taupunkt des Abgases liegt bei etwa 55°C. Speziell im Winter ist die Außenlufttemperatur niedriger als die Brauchwassertemperatur, so dass im Rekuperator nochmals Wärme vom Abgas auf die Frischluft übertragen werden kann. Da die Abgase im Wärmetauscher des Heizungsgerätes 2 bereits auf eine Temperatur deutlich unterhalb 100°C abgekühlt werden, besteht in keinem Fall eine Gefahr der Überhitzung im Rekuperator 3, wenn dieser keine Wärme mehr aufnehmen kann.As with any heat exchanger, the principle is that the warmer medium can be minimally cooled to a temperature above the temperature of the colder medium, the maximum heat transfer is achieved in a countercurrent flow. Exhaust gases of conventional natural gas powered
Claims (5)
- Fuel-heated heating device (2) in a heating device housing (3) with a recuperator (4) in a separate recuperator housing (5) and an exhaust adapter (1), wherein the heating device (2) has an upwardly directed heating exhaust pipe connection (6) and the recuperator (4) has an exhaust inlet (7) and an exhaust outlet (8), the recuperator (4) has a recuperator rear wall (9) with wall fixing means and a recuperator front side (10) with means for securing the heating device (2), wherein the exhaust adapter (1) connects the heating exhaust pipe connection (6) to the exhaust inlet (7) of the recuperator (4) and connects the exhaust outlet (8) of the recuperator (4) to an adapter exhaust pipe connection (11), and wherein the direction of the opening of the heating exhaust pipe connection (6) and the direction of the opening of the adapter exhaust pipe connection (11) form a right angle and in addition lie in a plane perpendicular to the recuperator rear wall (9).
- Fuel-heated heating device (2) with a recuperator (4) and an exhaust adapter (1) according to claim 1, wherein the exhaust adapter (1) connects the heating exhaust pipe connection (6) to the exhaust inlet (7) of the recuperator (4) and connects the exhaust outlet (8) of the recuperator (4) to the adapter exhaust pipe connection (11) in coaxial lines, wherein the exhaust lines (12) are surrounded by fresh air lines (13).
- Fuel-heated heating device (2) with a recuperator (4) and an exhaust adapter (1) according to claim 1, wherein the exhaust adapter (1), which connects the heating exhaust pipe connection (6) to the exhaust inlet (7) of the recuperator (4) and connects the exhaust outlet (8) of the recuperator (4) to the adapter exhaust pipe connection (11) by means of exhaust lines (12) surrounds said exhaust lines (12) carrying fresh air.
- Fuel-heated heating device (2) with a recuperator (4) and an exhaust adapter (1) according to any one of claims 1 to 3, wherein the exhaust adapter (1) from the inlet connectable to the heating exhaust pipe connection (6) up to the adapter exhaust pipe connection (11) has the same extension as a 90° standard exhaust bend.
- Fuel-heated heating device (2) with a recuperator (4) and an exhaust adapter (1) according to any one of claims 1 to 3, wherein the exhaust adapter (1) from the inlet connectable to the heating exhaust pipe connection (6) up to the adapter exhaust pipe connection (11) has the same horizontal extension as the sum of the depth t of the recuperator housing (5), which is a result of the distance between the recuperator rear wall (9) and recuperator front side (10), plus a 90° standard exhaust bend.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012011980A DE102012011980A1 (en) | 2012-06-16 | 2012-06-16 | Exhaust adapter for a heater with recuperator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2674675A1 EP2674675A1 (en) | 2013-12-18 |
EP2674675B1 true EP2674675B1 (en) | 2016-05-04 |
Family
ID=48578827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13170551.9A Active EP2674675B1 (en) | 2012-06-16 | 2013-06-05 | Heating device with a recuperator and an exhaust gas adaptor |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2674675B1 (en) |
DE (1) | DE102012011980A1 (en) |
ES (1) | ES2576003T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016066844A1 (en) * | 2014-10-31 | 2016-05-06 | Firebird Heating Solutions Ltd | Improved boiler heating system having an external heat exchanger |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3713448A1 (en) * | 1987-04-22 | 1988-11-03 | Webasto Ag Fahrzeugtechnik | Heating device, in particular additional heating device for vehicles |
DE3713476A1 (en) * | 1987-04-22 | 1988-11-10 | Webasto Ag Fahrzeugtechnik | Heating device, in particular supplementary heating device for vehicles |
DE202006008322U1 (en) * | 2006-05-26 | 2006-08-24 | Vaillant Gmbh | Flue for wall mounted heater especially water heater has a coaxial exhaust and fresh air duct with connection at rear or on top of housing |
EP2085732B1 (en) * | 2008-02-04 | 2014-04-09 | ATEC GmbH & Co. KG | Glass heat exchanger with plastic tube plate |
DE202008000097U1 (en) * | 2008-07-22 | 2008-10-09 | Webasto Ag | Mobile heater |
DE202008015206U1 (en) * | 2008-11-17 | 2009-07-30 | Vincador Holding Gmbh | Retrofit kit for a boiler for building heating |
-
2012
- 2012-06-16 DE DE102012011980A patent/DE102012011980A1/en not_active Withdrawn
-
2013
- 2013-06-05 EP EP13170551.9A patent/EP2674675B1/en active Active
- 2013-06-05 ES ES13170551.9T patent/ES2576003T3/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
EP2674675A1 (en) | 2013-12-18 |
DE102012011980A1 (en) | 2013-12-19 |
ES2576003T3 (en) | 2016-07-04 |
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