EP0187234A2 - Method of and means for heating the room air - Google Patents

Method of and means for heating the room air Download PDF

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Publication number
EP0187234A2
EP0187234A2 EP85114676A EP85114676A EP0187234A2 EP 0187234 A2 EP0187234 A2 EP 0187234A2 EP 85114676 A EP85114676 A EP 85114676A EP 85114676 A EP85114676 A EP 85114676A EP 0187234 A2 EP0187234 A2 EP 0187234A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
air
exhaust
heat
exhaust air
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
Application number
EP85114676A
Other languages
German (de)
French (fr)
Other versions
EP0187234B1 (en
EP0187234A3 (en
Inventor
Heinrich Prof. Dipl.-Ing. Trümper
Karl-Friedrich Prof. Dr. Ing. Knoche
Klaus Dipl.-Ing. Hain
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.)
Vaillant BV
Original Assignee
Vaillant Austria GmbH
Nv Vaillant Sa
Vereinigte Elektrizitatswerke Westfalen AG
Joh Vaillant GmbH and Co
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
SCHONEWELLE BV
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Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6259358&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0187234(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Vaillant Austria GmbH, Nv Vaillant Sa, Vereinigte Elektrizitatswerke Westfalen AG, Joh Vaillant GmbH and Co, Vaillant GmbH, Vaillant SARL, Vaillant Ltd, SCHONEWELLE BV filed Critical Vaillant Austria GmbH
Priority to AT85114676T priority Critical patent/ATE70621T1/en
Publication of EP0187234A2 publication Critical patent/EP0187234A2/en
Publication of EP0187234A3 publication Critical patent/EP0187234A3/en
Application granted granted Critical
Publication of EP0187234B1 publication Critical patent/EP0187234B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/065—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators using fluid fuel

Definitions

  • the invention relates to a method for heating the room air, in particular apartments, using a heat source processing fossil fuels, a water heat accumulator and a heat exchanger device in the exhaust gas stream of the heat source, the room air being heated via the heat exchanger in the exhaust gas stream and the a is preceded bgasploleyer an exhaust air heat exchanger and which is guided to be heated outside air first through the Ab-Juft Vietnameseleyer and then through the exhaust heat exchanger and is heated in two stages and a device for performing this method.
  • the object of the invention is therefore a usable in particular for natural gas burner design, in which the utilization of the W ärmeinhalte can be further increased the exhaust gases.
  • This object is achieved according to the present invention in that the exhaust air is fed into the combustion chamber of the heat source after leaving the first heat exchanger for the outside air and is fed to the second heat exchanger for the outside air with the exhaust gas of the heat source and is discharged together with these exhaust gases as exhaust air.
  • the invention provides that the exhaust air is admixed in partial flows. This procedure can be useful if the regulation should be particularly sensitive to the prevailing circumstances.
  • One device of the method is characterized by an exhaust air duct that conducts the exhaust air behind the heat exchanger into the combustion chamber of the heat source.
  • the invention also provides that a separating device for partial flows of the exhaust air is provided behind the exhaust air / outside air heat exchanger.
  • the device in the example shown houses within a housing 2 from bottom to top: a hot water heat accumulator 3, a natural gas-fired heat source 4 and a two-stage heat exchanger 5 as a two-stage cross-flow heat exchanger.
  • the hot water heat accumulator 2 is with a cold water inlet 6 and a hot water outlet 7, z. B. for connection to bathroom installations or the like.
  • a heat exchanger 8 for a secondary heating circuit 9 which serves to take over the heating tips when heating with heated supply air, as described in more detail below, should no longer suffice.
  • the natural gas-operated heat source 4 first emits its heat to a water heat exchanger 10 which, as shown, takes water from the heat accumulator 3 and supplies heated water to the heat accumulator.
  • the heat exchanger 5 essential for the invention is designed as a two-stage cross-flow heat exchanger, although the cross-flow itself is not important, but rather the two-stage. It is provided with four connections, namely with an exhaust air intake 11, an outside air intake 12, a supply air outlet 13 and an exhaust air outlet 14. The outside air is drawn in by means of symbolically indicated fans 15, while the exhaust air is discharged by means of also symbolically indicated fans.
  • the fan 16 not only discharges the exhaust air, but in the same way also the exhaust gases coming from the combustion chamber 20 of the natural gas burner 4.
  • the exhaust air is fed to the combustion chamber 20 and, as warmer combustion air, makes a contribution to optimizing the burner and the overall efficiency.
  • the exhaust air / exhaust gas mixture is then discharged via the chamber 17a through the fan 16.
  • the second, downstream heat exchanger designated 19, is heated by exhaust gas / exhaust air.
  • the preheated outside air is thus further heated and supplied as a supply air via the supply air connection 13 to a room or a distribution system for several rooms.
  • a mixing device 22 can be provided at the end of the heat exchanger 18, by means of which the exhaust air can either be supplied to the chamber 17a or else to the line 21 and thus to the natural gas burner as combustion air.

Abstract

In the method for heating room air, in particular for apartment dwellings, using a heat source which consumes fossil fuels, a water heat accumulator and a heat exchanger device in the waste gas flow of the heat source, an outgoing air heat exchanger being superposed above the heat exchanger, for the room air, and the outside air to be heated being conducted first through the outgoing air heat exchanger and then through the waste gas heat exchanger and being heated in two stages, a further energy optimisation is to be achieved. This is achieved in that the outgoing air, after leaving the first heat exchanger for the outside air, is fed into the combustion chamber of the heat source and, with the waste gas from the heat source, is supplied to the second heat exchanger for the outside air and is carried off as discharge air together with these waste gases. <IMAGE>

Description

Die Erfindung richtet sich auf ein Verfahren zur Erwärmung der Raumluft, insbesondere von Wohnungen, unter Einsatz einer fossile Brennstoffe verarbeitenden Wärmequelle, eines Wasser-Wärmespeichers sowie einer Wärmetauscher-Einrichtung im Abgasstrom der Wärmequelle, wobei die Raumluft über den Wärmetauscher im Abgasstrom erwärmt und wobei dem Abgaswärmetauscher ein Abluftwärmetauscher vorgeschaltet ist und die zu erwärmende Außenluft zunächst durch den Ab-Juftwärmetauscher und daraufhin durch den Abgaswärmetauscher geführt und zweistufig erwärmt wird sowie auf eine Vorrichtung zur Durchführung dieses Verfahrens.The invention relates to a method for heating the room air, in particular apartments, using a heat source processing fossil fuels, a water heat accumulator and a heat exchanger device in the exhaust gas stream of the heat source, the room air being heated via the heat exchanger in the exhaust gas stream and the a is preceded bgaswärmetauscher an exhaust air heat exchanger and which is guided to be heated outside air first through the Ab-Juftwärmetauscher and then through the exhaust heat exchanger and is heated in two stages and a device for performing this method.

Bei einer älteren Anmeldung (EP 0 148 988 AZ) ist wesentlich, daß die Außenluft als Zuluft zweistufig erwärmt wird, wie dies auch hier der Fall ist. Die Abluft wird dort nach Verlassen des Abluft-/-Außenluftwärmetauschers dem im nachgeschalteten Abgas-/Außenluftwärmetauscher abgekühlten Abgas zugemischt und als Fortluft ausgetragen. Andere Lösungen zeigen die US-4 409 955 und DE-A-33 08 700.In an older application (EP 0 148 988 AZ) it is essential that the outside air is heated in two stages as supply air, as is also the case here. After leaving the exhaust air / outdoor air heat exchanger, the exhaust air is mixed with the exhaust gas cooled in the downstream exhaust gas / outdoor air heat exchanger and discharged as exhaust air. Other solutions are shown in US-4 409 955 and DE-A-33 08 700.

Weist die ältere Verfahrensweise nach der EP 0 148 988 AZ bereits eine Fülle von Vorteilen auf, so gibt es Einsatzgebiete, in denen eine weitere energetische Optimieruno nützlich sein kann.If the older procedure according to EP 0 148 988 AZ already has a wealth of advantages, there are areas of application in which a further energetic optimization can be useful.

Aufgabe der Erfindung ist daher eine insbesondere bei Erdgasbrennern einsetzbare Gestaltung, bei der die Ausnutzung der Wärmeinhalte der Abgase weiter gesteigert werden kann.The object of the invention is therefore a usable in particular for natural gas burner design, in which the utilization of the W ärmeinhalte can be further increased the exhaust gases.

Diese Aufgabe wird gemäß der vorliegenden Erfindung dadurch gelöst, daß die Abluft nach Verlassen des für die Außenluft ersten Wärmetauschers in den Brennraum der Wärmequelle eingespeist und mit dem Abgas der Wärmequelle dem für die Außenluft zweiten Wärmetauscher zugeführt und gemeinsam mit diesen Abgasen als Fortluft ausgetragen wird.This object is achieved according to the present invention in that the exhaust air is fed into the combustion chamber of the heat source after leaving the first heat exchanger for the outside air and is fed to the second heat exchanger for the outside air with the exhaust gas of the heat source and is discharged together with these exhaust gases as exhaust air.

Es hat sich gezeigt, daß je nach Standort und Einsatzgebiet, die Zumischung von Abluft den Wirkungsgrad der Gesamtanlage erhöhen kann, da die Abluft auch nach Durchströmen des Außenluft-/Abluftwärmetauschers noch eine höhere Temperatur aufweist, als diejenige, die der Erdgasbrenner ansonsten als kalte Frischluft ansaugen müßte.It has been shown that depending on the location and area of application, the addition of exhaust air can increase the efficiency of the overall system, since the exhaust air, even after flowing through the outdoor air / exhaust air heat exchanger, is still at a higher temperature than that which the natural gas burner would otherwise have as cold fresh air should suck in.

in Ausgestaltung sieht die Erfindung vor, daß die Zumischung der Abluft in Teilströmen erfolgt. Diese Verfahrensweise kann dann nützlich sein, wenn die Regelung besonders sensibel auf die jeweiligen zur Zeit herrschenden Umstände einstellbar sein sollen.In an embodiment, the invention provides that the exhaust air is admixed in partial flows. This procedure can be useful if the regulation should be particularly sensitive to the prevailing circumstances.

Eine Vorrichtung des Verfahrens weist sich durch eine die Abluft hinter dem Wärmetauscher in den Brennraum der WärmequelJe leitenden Abluftkanal aus.One device of the method is characterized by an exhaust air duct that conducts the exhaust air behind the heat exchanger into the combustion chamber of the heat source.

In Ausgestaltung sieht die Erfindung auch vor, daß hinter dem Abluft-/Außenluftwärmetauscher eine Trenneinrichtung für Teilströme der Abluft vorgesehen ist.In an embodiment, the invention also provides that a separating device for partial flows of the exhaust air is provided behind the exhaust air / outside air heat exchanger.

Die Erfindung ist nachstehend anhand der Zeichnung beispielsweise näher erläutert. Diese zeigt in der einzigen Figur eine Prinzipdarstellung der erfindungsgemäßen Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens.The invention is explained below with reference to the drawing, for example. In the single figure, this shows a basic illustration of the device according to the invention for carrying out the method according to the invention.

Die allgemein mit 1 bezeichnete Vorrichtung beherbergt im dargestellten Beipiel innerhalb eines Gehäuses 2 von unten nach oben: einen Warmwasserwärmespeicher 3, eine erdgasbefeuerte Wärmequelle 4 sowie einen zweistufigen Wärmetauscher 5 als zweistufiger Kreuzstromwärmetauscher.The device, generally designated 1, in the example shown houses within a housing 2 from bottom to top: a hot water heat accumulator 3, a natural gas-fired heat source 4 and a two-stage heat exchanger 5 as a two-stage cross-flow heat exchanger.

Der Warmwasserwärmespeicher 2 ist mit einem Kaltwasserzulauf 6 und einem Warmwasserabelauf 7, z. B. zum Anschluß an Badezimmerinstallationen o. dgl., versehen. Innerhalb des Wärmespeichers 3 befindet sich ein Wärmetauscher 8 für einen Sekundärheizkreis 9, der zur Übernahme der Heizspitzen dient, wenn die Beheizung mit erwärmter Zuluft, wie dies weiter unten näher beschrieben ist, nicht mehr ausreichen sollte.The hot water heat accumulator 2 is with a cold water inlet 6 and a hot water outlet 7, z. B. for connection to bathroom installations or the like. Within the heat accumulator 3 there is a heat exchanger 8 for a secondary heating circuit 9, which serves to take over the heating tips when heating with heated supply air, as described in more detail below, should no longer suffice.

Die erdgasbetriebene Wärmequelle 4 gibt zunächst ihre Wärme an einen Wasserwärmetauscher 10 ab, der, wie dargestellt, Wasser aus dem Wärmespeicher 3 entnimmt und dem Wärmespeicher erwärmtes Wasser zuführt.The natural gas-operated heat source 4 first emits its heat to a water heat exchanger 10 which, as shown, takes water from the heat accumulator 3 and supplies heated water to the heat accumulator.

Der für die Erfindung wesentliche Wärmetauscher 5 ist, wie bereits oben erwähnt, als zweistufiger Kreuzstromwärmetauscher ausgebildet, wobei es allerdings auf den Kreuzstrom an sich nicht ankommt, vielmehr auf die Zweistufigkeit. Er ist mit vier Anschlüssen versehen, und zwar mit einem Abluftansaugstutzen 11, einem Außenluftansaugstutzen 12, einem Zuluftabgabestutzen 13 sowie einem Fortluftabgabestutzen 14. Die Außenluft wird über symbolisch angedeutete Gebläse 15 angesogen, während die Fortluft über ebenfalls symbolisch angedeutete Gebläse ausgetragen wird.As already mentioned above, the heat exchanger 5 essential for the invention is designed as a two-stage cross-flow heat exchanger, although the cross-flow itself is not important, but rather the two-stage. It is provided with four connections, namely with an exhaust air intake 11, an outside air intake 12, a supply air outlet 13 and an exhaust air outlet 14. The outside air is drawn in by means of symbolically indicated fans 15, while the exhaust air is discharged by means of also symbolically indicated fans.

Wie aus der Zeichnung erkennbar, trägt das Gebläse 16 nicht nur die Fortluft aus, sondern in gleicher Weise auch die aus dem Brennraum 20 des Erdgasbrenners 4 kommenden Abgase.As can be seen from the drawing, the fan 16 not only discharges the exhaust air, but in the same way also the exhaust gases coming from the combustion chamber 20 of the natural gas burner 4.

Über die Leitung 21 wird die Abluft, nachdem sie den Wärmetauscher 18 durchströmt hat dem Feuerraum 20 zugeführt und bildet als wärmere Verbrennungsluft einen Beitrag zur'Optimierung des Brenners und des Gedamtwirkungsgrades. Das Abluft-/Abgasgemisch wird dann über die Kammer 17a durch das Gebläses 16 ausgetragen.Via the line 21, the exhaust air, after it has passed through the heat exchanger 18, is fed to the combustion chamber 20 and, as warmer combustion air, makes a contribution to optimizing the burner and the overall efficiency. The exhaust air / exhaust gas mixture is then discharged via the chamber 17a through the fan 16.

Wie erkennbar ist der zweite, nachgeschaltete Wärmetauscher, mit 19 bezeichnet, abgas-/abluftbeheizt. Damit wird die vorgewärmte Außenluft weiter erwärmt und als Zuluft über den Zuluftstutzen 13 einem Raum bzw. einem Verteilersystem für mehrere Räume zugeführt.As can be seen, the second, downstream heat exchanger, designated 19, is heated by exhaust gas / exhaust air. The preheated outside air is thus further heated and supplied as a supply air via the supply air connection 13 to a room or a distribution system for several rooms.

In Strömungsrichtung der Abluft gesehen kann am Ende des Wärmetauschers 18 eine Mischeinrichtung 22 vorgesehen sein, mit der die Abluft entweder der Kammer 17a zuführbar ist oder aber der Leitung 21 und damit als Brennluft dem Erdgasbrenner zur Verfügung steht.Viewed in the direction of flow of the exhaust air, a mixing device 22 can be provided at the end of the heat exchanger 18, by means of which the exhaust air can either be supplied to the chamber 17a or else to the line 21 and thus to the natural gas burner as combustion air.

Claims (4)

1. Verfahren zur Erwärmung der Raumluft, insbesondere von Wohnungen, unter Einsatz einer fossile Brennstoffe verarbeitenden Wärmequelle, eines Wasser-Wärmespeichers sowie einer Wärmetauscher-Einrichtung im Abgasstrom der Wärmequelle, wobei die Raumluft über den Wärmetauscher im Abgasstrom erwärmt und wobei dem Abgaswärmetauscher ein Abluftwärmetauscher vorgeschaltet ist und die zu erwärmende Außenluft zunächst durch den Abluftwärmetauscher und daraufhin durch den Abgaswärmetauscher geführt und zweistufig erwärmt wird,
dadurch gekennzeichnet,
daß die Abluft nach Verlassen des für die Außenluft ersten Wärmetauschers in den Brennraum der Wärmequelle eingespeist und mit dem Abgas der Wärmequelle dem für die Außenluft zweiten Wärmetauscher zugeführt und gemeinsam mit diesen Abgasen als Fortluft ausgetragen wird.1.Procedure for heating the room air, in particular apartments, using a heat source processing fossil fuels, a water heat accumulator and a heat exchanger device in the exhaust gas stream of the heat source, the room air being heated via the heat exchanger in the exhaust gas stream and an exhaust air heat exchanger being connected upstream of the exhaust gas heat exchanger and the outside air to be heated is first passed through the exhaust air heat exchanger and then through the exhaust gas heat exchanger and is heated in two stages,
characterized,
that the exhaust air is fed into the combustion chamber of the heat source after leaving the first heat exchanger for the outside air and is fed to the second heat exchanger for the outside air with the exhaust gas of the heat source and is discharged together with these exhaust gases as exhaust air. 2. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß die Zumischung der Abluft in Teilströmen erfolgt.2. The method according to claim 1,
characterized,
that the admixture of the exhaust air takes place in partial flows. 3. Vorrichtung zur Durchführung des Verfahren, mit einer fossile Brennstoffe verarbeitenden Wärmequelle (4), einem Wasser-Wärmespeicher (3), einem in Richtung der Außenluft stromabwärts liegenden ersten Wärmetauscher (18) und einem stromaufwärts liegenden weiteren Wärmetauscher (19), gekennzeichnet durch eine die Abluft hinter dem Wärmetauscher (18) in den Brennraum (20) der Wärmequelle (4) leitenden Abluftkanal (21).3. Device for carrying out the method, with a heat source (4) processing fossil fuels, a water heat accumulator (3), a first heat exchanger (18) located downstream in the direction of the outside air, and egg nem upstream further heat exchanger (19), characterized by an exhaust air duct (21) which conducts the exhaust air behind the heat exchanger (18) into the combustion chamber (20) of the heat source (4). 4. Vorrichtung nach Anspruch 3,
dadurch gekennzeichnet,
daß hinter dem Abluft-/Außenluftwärmetauscher (18) eine Trenneinrichtung (22) für Teilströme der Abluft vorgesehen ist.4. The device according to claim 3,
characterized,
that a separator (22) for partial flows of the exhaust air is provided behind the exhaust air / outdoor air heat exchanger (18).
EP85114676A 1985-01-07 1985-11-19 Method of and means for heating the room air Expired - Lifetime EP0187234B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85114676T ATE70621T1 (en) 1985-01-07 1985-11-19 METHOD AND DEVICE FOR HEATING ROOM AIR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853500292 DE3500292A1 (en) 1985-01-07 1985-01-07 METHOD AND DEVICE FOR HEATING THE INDOOR AIR
DE3500292 1985-01-07

Publications (3)

Publication Number Publication Date
EP0187234A2 true EP0187234A2 (en) 1986-07-16
EP0187234A3 EP0187234A3 (en) 1988-04-06
EP0187234B1 EP0187234B1 (en) 1991-12-18

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ID=6259358

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85114676A Expired - Lifetime EP0187234B1 (en) 1985-01-07 1985-11-19 Method of and means for heating the room air

Country Status (3)

Country Link
EP (1) EP0187234B1 (en)
AT (1) ATE70621T1 (en)
DE (2) DE3500292A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1018539C2 (en) * 2000-07-15 2002-12-10 Bosch Gmbh Robert Distribution system for a home with gas-driven heat generator and a ventilation device.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3928351A1 (en) * 1989-08-26 1991-02-28 Justus Gmbh Heater with air conditioning unit - has exhaust of heater and exhaust air line of air conditioning unit fed to common collection chamber
DE10238907B4 (en) * 2002-08-24 2013-10-24 Robert Bosch Gmbh heater

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4409955A (en) 1981-06-04 1983-10-18 Christian J Vernon Solid fuel warm air furnace
DE3308700A1 (en) 1982-04-27 1983-12-08 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Device for heating and ventilating

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1400745A (en) * 1964-06-08 1965-05-28 Method and device for increasing the efficiency of central heating appliances operating on oil or gas
EP0083726A1 (en) * 1981-12-12 1983-07-20 Joh. Vaillant GmbH u. Co. Installation for air heating

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4409955A (en) 1981-06-04 1983-10-18 Christian J Vernon Solid fuel warm air furnace
DE3308700A1 (en) 1982-04-27 1983-12-08 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Device for heating and ventilating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1018539C2 (en) * 2000-07-15 2002-12-10 Bosch Gmbh Robert Distribution system for a home with gas-driven heat generator and a ventilation device.

Also Published As

Publication number Publication date
EP0187234B1 (en) 1991-12-18
ATE70621T1 (en) 1992-01-15
EP0187234A3 (en) 1988-04-06
DE3500292A1 (en) 1986-07-10
DE3584959D1 (en) 1992-01-30

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