EP0616173A2 - Procédure et chaudière pour le chauffage combiné d'un chauffage d'un batiment et d'un accumulateur pour eau sanitaire - Google Patents

Procédure et chaudière pour le chauffage combiné d'un chauffage d'un batiment et d'un accumulateur pour eau sanitaire Download PDF

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Publication number
EP0616173A2
EP0616173A2 EP94102471A EP94102471A EP0616173A2 EP 0616173 A2 EP0616173 A2 EP 0616173A2 EP 94102471 A EP94102471 A EP 94102471A EP 94102471 A EP94102471 A EP 94102471A EP 0616173 A2 EP0616173 A2 EP 0616173A2
Authority
EP
European Patent Office
Prior art keywords
boiler
heating
water
liquid space
liquid
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
EP94102471A
Other languages
German (de)
English (en)
Other versions
EP0616173B1 (fr
EP0616173A3 (fr
Inventor
Robert Kremer
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.)
Froling & Co Kessel-Apparatebau GmbH
Original Assignee
Froling & Co Kessel-Apparatebau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Froling & Co Kessel-Apparatebau GmbH filed Critical Froling & Co Kessel-Apparatebau GmbH
Publication of EP0616173A2 publication Critical patent/EP0616173A2/fr
Publication of EP0616173A3 publication Critical patent/EP0616173A3/fr
Application granted granted Critical
Publication of EP0616173B1 publication Critical patent/EP0616173B1/fr
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
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • 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
    • F24H1/28—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 including one or more furnace or fire tubes
    • F24H1/285—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 including one or more furnace or fire tubes with the fire tubes arranged alongside the combustion chamber
    • 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
    • F24H9/0036—Dispositions against condensation of combustion products
    • 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
    • F24H9/12—Arrangements for connecting heaters to circulation pipes
    • F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters

Definitions

  • the invention relates to a method for the combined heating of a heat transfer medium for heating a building on the one hand and a heat transfer medium for a storage tank for domestic and drinking water on the other hand with the aid of a three-pass boiler with internal exhaust gas recirculation.
  • the invention relates to a boiler for performing the method.
  • So-called three-pass boilers which are usually operated as low-temperature or low-temperature boilers, are frequently used according to the prior art for heating a building and for heating a centrally arranged drinking water heater.
  • the DHW cylinder is operated in priority mode, particularly in winter or the transition period in spring and autumn, using the entire boiler heat output.
  • priority mode particularly in winter or the transition period in spring and autumn
  • the entire boiler heat output is necessarily accepted that with each priority switch triggered by the storage thermostat in favor of the hot water supply, the entire amount of boiler water is heated to unnecessarily high temperatures above 65 ° C, although, for example in the transition period, only heating water temperatures of e.g. 40 ° C, and in summer no heat is required for building heating.
  • the invention has for its object to provide a method and a boiler for combined heating of the building heating on the one hand and a storage tank for domestic and drinking water on the other hand, in which the thermal efficiency is increased and the air-polluting emissions are reduced.
  • the heat transfer medium for heating the storage container is removed from a first liquid space of the boiler, fed to the storage container and returned to the first liquid space, the liquid of the first liquid space being removed directly from the through the second and / or by means of heat exchanger surfaces. or third train of the boiler flowing exhaust gases is heated, that the heat transfer medium for the building heating is removed from a second liquid space of the boiler, supplied to the building heating and returned to the second liquid space, the heat transfer medium of the second liquid space being heated essentially by gravity circulation with the first liquid space , and wherein the first liquid space is at least partially separated from the second liquid space by boundary surfaces and assumes a higher temperature level.
  • the second outer water space separated from the first inner water space by boundary surfaces, increases its temperature only insignificantly during short-term priority operation for the storage circuit, so that the overall efficiency is significantly improved.
  • the connecting piece for the flow of the storage circuit is preferably arranged at the highest boiler point, while the return takes place in the area of the lowest point of the first liquid space. Are there openings are provided in the area of the connections, which connect the first to the second liquid space.
  • This arrangement of the supply and return flow for the storage tank charging circuit with the forced loading of the two connecting pieces with the aid of a pump interrupts the circulation of the outer boiler water volume with the inner boiler water volume, which normally takes place under gravity, for the period of the store charging.
  • the opening cross-sections for gravity operation are designed so that the prevailing gravity flow conditions during normal heating operation are cut off due to the thermal buoyancy in the inner chamber by the amount of heating water impressed with the help of the circulation pump in the storage tank charging circuit.
  • feed pumps for the heat transfer medium are preferably provided in the storage circuit or in the heating circuit.
  • the known measures for further reducing the emissions can be carried out, for example, exhaust gas recirculation, for example, may be possible in the burner chamber, as a result of which unburned hydrocarbons can be reduced, nitrogen oxide can be reduced or the carbon monoxide can be oxidized.
  • a three-pass boiler according to the invention for carrying out the method described above essentially consists of a pot-shaped combustion chamber which is arranged in a combustion chamber and forms the first train.
  • This combustion chamber is surrounded by a rib profile acting as a heat exchanger, through which the exhaust gases generated in the combustion chamber are guided in the direction of the burner nozzle (second draft).
  • the third train is a so-called secondary heating surface, which acts as a heat exchanger and through which the exhaust gases, after flowing through the second train, are passed with further cooling before finally being fed to an exhaust gas fireplace or the like.
  • the rib profile and the secondary heating surface are surrounded by a first liquid space which has the connections for the supply and return of the heat transfer medium for heating the storage tank.
  • the first liquid space is surrounded by a second liquid space, which has the connections for the flow and return of the heat transfer medium to the building heating.
  • the first and second liquid spaces are at least partially separated from one another by boundary surfaces.
  • the flow connection for the storage circuit is arranged in the area of the highest boiler point and the return connection for the storage circuit in the area of the lowest point of the first liquid space, in these areas an open connection between the first and the second liquid space, so that normal gravity operation is possible.
  • the boiler shown in section in Figure 1 consists of a pot-shaped combustion chamber 1, which is arranged in a furnace 2.
  • the combustion chamber 1 is surrounded by a rib profile 3 acting as a heat exchanger, through which the exhaust gases formed in the combustion chamber 1 flow in the direction of the burner nozzle (not shown in FIG. 1), that is to say in the direction of the viewer, and cool down in the process.
  • An inner water space jacket 4 is arranged around the rib profile 3 and delimits a first inner water space 5 towards the rib profile 3. The water in the first water chamber 5 is heated by the rib profile 3 over the inner water chamber jacket 4 when the burner is switched on.
  • the throughflow channel formed by the rib profile 3 is referred to in the sense of this patent application as the second train, while the combustion chamber 1 forms the first train.
  • the exhaust gas After flowing through the second train, the exhaust gas likewise changes its direction of flow formed as a heat exchanger Nachschaltflower Structure 6, which is referred to as the third train.
  • the secondary heating surface 6, like the second train, is enclosed by the first water chamber 5 so that the heat generated is used directly to heat the water in the first water chamber 5 when the burner is running.
  • a second water chamber 7 is arranged around the first water chamber 5, the water of which is heated via the boundary surface 8, which separates the first water chamber 5 from the second water chamber 7.
  • the first water chamber 5 serves to heat the drinking water in a storage tank.
  • a connection piece 9 for the flow of the storage circuit and a connection piece 10 for the return flow of the storage circuit are provided at the lowest point of the first water space 7 at the top of the boiler.
  • the boundary surface 8 between the two water spaces 5 and 7 is interrupted, so that in this area the possibility of an exchange between the water quantities of the first water space 5 and the second water space 7 is possible.
  • the boiler can be operated in the normal gravity flow process without an impressed pump flow.
  • the gravity flow is cut off when the feed pump is switched on in the flow of the storage circuit, so that only the heated water in the water space 5 is used to heat the storage container.
  • the second water space 7 is enclosed on the outside by an outer boiler jacket 13.
  • An insulating layer 15 arranged in the outer cladding 14 protects the second water space 7 from heat losses.
  • a switch box 16 with the required electrical control devices is placed on the outer cladding 14.
  • FIG. 1 shows the boiler of Figure 1 in connection with the storage circuit 17 and the heating circuit 18.
  • a feed pump 20 is provided which conveys the water heated in the first water space 5 through a heat exchanger 21 which is arranged in the interior of a storage container 22. The cooled water is conveyed back into the interior of the boiler via the return 23.
  • a thermostat 24 detects the temperature in the interior of the storage container 22 and switches the burner or the feed pump 20.
  • the heating circuit 18 is constructed accordingly, its flow 25 or its return 26 being connected to the corresponding connections of the second water space 7.
  • a boiler for larger heat outputs is shown in a longitudinal or cross section.
  • the first water space 27 is delimited by a U-shaped curved boundary surface 28 to the second water space 29.
  • the removal of the heated water for the storage circuit takes place through the connection piece 30, which in turn is arranged at the highest point of the upper water space, openings being provided in the boundary surface 28 in its area, so that normal gravity flow operation of the boiler is possible.
  • the water can be exchanged between the first water space 27 and the second water space 29 at the openings 31.
  • the return connection 32 for the storage circuit In the lower area there is also the return connection 32 for the storage circuit.

Landscapes

  • 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)
  • Water Supply & Treatment (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
EP94102471A 1993-03-19 1994-02-18 Procédure et chaudière pour le chauffage combiné d'un chauffage d'un batiment et d'un accumulateur pour eau sanitaire Expired - Lifetime EP0616173B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4308759A DE4308759A1 (de) 1993-03-19 1993-03-19 Verfahren bzw. Heizkessel zum kombinierten Erwärmen einer Gebäudeheizung und eines Speicherbehälters für Brauchwasser
DE4308759 1993-03-19

Publications (3)

Publication Number Publication Date
EP0616173A2 true EP0616173A2 (fr) 1994-09-21
EP0616173A3 EP0616173A3 (fr) 1995-02-08
EP0616173B1 EP0616173B1 (fr) 1998-07-22

Family

ID=6483198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94102471A Expired - Lifetime EP0616173B1 (fr) 1993-03-19 1994-02-18 Procédure et chaudière pour le chauffage combiné d'un chauffage d'un batiment et d'un accumulateur pour eau sanitaire

Country Status (3)

Country Link
EP (1) EP0616173B1 (fr)
AT (1) ATE168764T1 (fr)
DE (2) DE4308759A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0687871A1 (fr) * 1994-06-15 1995-12-20 Dejatech B.V. Chaudière avec plus d'une chambre
FR2744521A1 (fr) * 1996-02-07 1997-08-08 Interdomo Gmbh & Co Chaudiere de chauffage pour chauffage a basse temperature
EP0915304A2 (fr) * 1997-11-06 1999-05-12 VIESSMANN WERKE GmbH & CO. Chaudière à trois passages
EP1369647A2 (fr) * 2002-06-04 2003-12-10 Bradford White Corporation Chaudière à haut rendement
DE19753065B4 (de) * 1997-11-29 2012-08-16 Wolf Gmbh Heizkessel mit thermohydraulischer Abkopplung für zwei Heizkreise
US8807093B2 (en) 2011-05-19 2014-08-19 Bock Water Heaters, Inc. Water heater with multiple heat exchanging stacks
EP3361181A1 (fr) * 2017-02-13 2018-08-15 Viessmann Werke GmbH & Co. KG Chaudière
US10184690B2 (en) 2017-02-09 2019-01-22 Bock Water Heaters, Inc. Condensing water heater and condensation control system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH431876A (de) * 1964-09-16 1967-03-15 Ygnis Sa Verbrauchswarmwasserbereiter
AT377357B (de) * 1981-02-23 1985-03-11 Kohler Anton Heizkessel
EP0512220A1 (fr) * 1991-05-02 1992-11-11 Mayr, Manfred Chaudière pour chauffage central à brûleur soufflant à huile ou à gaz et pour usage à température basse

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH431876A (de) * 1964-09-16 1967-03-15 Ygnis Sa Verbrauchswarmwasserbereiter
AT377357B (de) * 1981-02-23 1985-03-11 Kohler Anton Heizkessel
EP0512220A1 (fr) * 1991-05-02 1992-11-11 Mayr, Manfred Chaudière pour chauffage central à brûleur soufflant à huile ou à gaz et pour usage à température basse

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9400977A (nl) * 1994-06-15 1996-01-02 Dejatech Bv Verwarmingsketel, voorzien van een aantal kamers.
EP0687871A1 (fr) * 1994-06-15 1995-12-20 Dejatech B.V. Chaudière avec plus d'une chambre
FR2744521A1 (fr) * 1996-02-07 1997-08-08 Interdomo Gmbh & Co Chaudiere de chauffage pour chauffage a basse temperature
DE19700550C2 (de) * 1996-02-07 2002-01-31 Interdomo Gmbh Heizkessel für Niedertemperaturheizungen
EP0915304A2 (fr) * 1997-11-06 1999-05-12 VIESSMANN WERKE GmbH & CO. Chaudière à trois passages
EP0915304A3 (fr) * 1997-11-06 2001-05-02 VIESSMANN WERKE GmbH & CO. Chaudière à trois passages
DE19753065B4 (de) * 1997-11-29 2012-08-16 Wolf Gmbh Heizkessel mit thermohydraulischer Abkopplung für zwei Heizkreise
EP1369647A2 (fr) * 2002-06-04 2003-12-10 Bradford White Corporation Chaudière à haut rendement
US7559293B2 (en) 2002-06-04 2009-07-14 Bradford White Corporation High efficiency water heater
US7900589B2 (en) 2002-06-04 2011-03-08 Bradford White Corporation High efficiency water heater
EP1369647A3 (fr) * 2002-06-04 2005-01-19 Bradford White Corporation Chaudière à haut rendement
US8807093B2 (en) 2011-05-19 2014-08-19 Bock Water Heaters, Inc. Water heater with multiple heat exchanging stacks
US10184690B2 (en) 2017-02-09 2019-01-22 Bock Water Heaters, Inc. Condensing water heater and condensation control system
EP3361181A1 (fr) * 2017-02-13 2018-08-15 Viessmann Werke GmbH & Co. KG Chaudière

Also Published As

Publication number Publication date
EP0616173B1 (fr) 1998-07-22
DE4308759A1 (de) 1994-09-22
DE59406468D1 (de) 1998-08-27
ATE168764T1 (de) 1998-08-15
EP0616173A3 (fr) 1995-02-08

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