EP0740113A1 - Kombinierter Kessel mit verbesserter Leistung - Google Patents

Kombinierter Kessel mit verbesserter Leistung Download PDF

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Publication number
EP0740113A1
EP0740113A1 EP96201018A EP96201018A EP0740113A1 EP 0740113 A1 EP0740113 A1 EP 0740113A1 EP 96201018 A EP96201018 A EP 96201018A EP 96201018 A EP96201018 A EP 96201018A EP 0740113 A1 EP0740113 A1 EP 0740113A1
Authority
EP
European Patent Office
Prior art keywords
heating
buffer tank
tap water
heat exchanger
combination boiler
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
EP96201018A
Other languages
English (en)
French (fr)
Other versions
EP0740113B1 (de
Inventor
Marinus Antonius Megens
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.)
APPARATENFABRIEK WARMTEBOUW BV
Original Assignee
APPARATENFABRIEK WARMTEBOUW BV
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 APPARATENFABRIEK WARMTEBOUW BV filed Critical APPARATENFABRIEK WARMTEBOUW BV
Publication of EP0740113A1 publication Critical patent/EP0740113A1/de
Application granted granted Critical
Publication of EP0740113B1 publication Critical patent/EP0740113B1/de
Anticipated expiration legal-status Critical
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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

Definitions

  • the invention relates to a combination boiler suitable for heating heating water circulating in an external heating circuit and for heating tap water, comprising:
  • Understood by combination boiler is a boiler which is suitable for heating heating water circulating in an external heating circuit.
  • This external heating circuit is generally understood to refer to a central heating circuit.
  • Such combination boilers are further suitable for heating tap water.
  • the output of such a boiler for heating tap water is rather low.
  • the output is sufficiently high to heat a quantity of tap water for showering, but the output is generally too low to heat a quantity of bath water, so that filling of a bath takes a relatively long time.
  • this problem is solved by using a buffer tank; in this buffer tank a quantity of heated tap water is stored which is supplied when tap water is demanded.
  • a heating coil which is fed with water circulating in the heating circuit.
  • the object of the present invention is therefore to provide such a combination boiler, wherein for the predetermined time a flow rate of water can be supplied at a predetermined temperature level and wherein the original design of the boiler is retained.
  • this additional heating device which can have a small volume, it is possible, when the temperature of water coming from the buffer tank falls, to add to the drained tap water an amount of heat which is small but which becomes increasingly larger. It is thus possible to temporarily increase the capacity of the boiler while retaining the original boiler design.
  • the buffer tank is adapted to store a quantity of heated tap water, wherein the buffer tank is provided with a first heating element included in the heating circuit.
  • the buffer tank is incorporated in the heating circuit and a heat generating coil is arranged in the buffer tank, which coil is adapted to transfer heat from the buffer tank to tap water flowing through the coil.
  • the additional heating device can be formed by an electrical heating device, but it is equally possible for the additional heating device to be formed by a heat exchanger, one side of which is arranged in the heating circuit.
  • FIG. 1 shows a heating unit 1 formed by a combustion space 2, above which is arranged a heat exchanger 3.
  • a heating circuit is formed by a connection 4, for instance for water coming from a central heating installation and circulating therein.
  • the connection 4 is connected to a three-way valve 5 which is connected via a pump 6 to heat exchanger 3.
  • the outlet of heat exchanger 3 is connected to a central heating outlet 7.
  • the parts described up to this point are the classic components of a typical central heating boiler.
  • the present combination boiler is further provided with a buffer tank 8 in which a heating coil 9 is arranged.
  • the heating coil 9 is connected to the same heating circuit of which the central heating connections 4,7 form part.
  • the feed connection of heating coil 9 is connected via a heat exchanger 10 to be discussed hereinbelow to the outlet of heating unit 1, while the outlet of heating coil 9 is connected to the three-way valve 5.
  • the buffer tank 8 is joined to a connection 11 for supplying cold tap water.
  • the outlet of the buffer tank is connected to one of the inlets of a mixing valve 12.
  • the other inlet of mixing valve 12 is joined to the connection 11 for the tap water.
  • the mixing valve 12 is preferably formed by a thermostatic mixing valve, i.e. a mixing valve which can be controlled such that the temperature of the water delivered by the mixing valve is as constant as possible.
  • a heat exchanger 10 is included in the heating circuit, this being the primary side thereof, i.e. 13.
  • the outlet of mixing valve 12 is connected to the secondary side 14 of heat exchanger 10.
  • this device When the device is switched on, tap water is admitted into buffer tank 8 until it is filled. When the heating device is then switched on, the content of buffer tank 8 will be heated by hot water circulating in the heating circuit and by means of heating coil 9 until the required temperature is reached. Use is made for this purpose of a thermostatic control, which is not shown in the diagram but which is in any case widely known in the relevant field of the art.
  • this tap water is partly taken from the buffer tank and partly taken directly from the connection 11 for cold tap water.
  • the two quantities of water are mixed in mixing valve 12, either in a fixed mixing ratio when the mixing valve is provided with fixed constrictions or with a fixed temperature of the outflowing water, wherein various adjustments are made such that, with the increase in temperature caused by the heat exchanger 10, water having the required temperature is obtained at the tap point 15. It is pointed out here that as a result of water being drained from buffer tank 8 the temperature hereof slowly falls because the output of the heating coil 9 is exceeded by the output represented by the heated water.
  • figure 2 thus shows for instance a diagram which is slightly modified.
  • the diagram of figure 2 differs in that heat exchanger 10 is included in the heat exchanger 3 of the heating unit.
  • the construction is hereby simplified.
  • an electrical heating element could be used in the configuration shown in figure 2. It is noted herein that by using an electrical heating element 17 it becomes easier to make use of a mixing valve 12 with fixed constrictions; the output of the electrical heating element can in any case then be controlled.
  • the heat exchanger 10 is integrated into the buffer tank. This results in a more compact construction.
  • the mixing valve 12 can then moreover be integrated into the relevant structural part.
  • the heating coil of the buffer tank is placed behind the heating coil of the heat exchanger in the heating circuit. This can of course also be reversed, although this results in a less attractive dimensioning.
  • figure 5 shows a configuration where the function of buffer tank 8 is changed; instead of tap water as in the first three embodiments, the buffer tank of the embodiment of figure 5 contains water belonging to the heating circuit. Heating of the tap water takes place by means of the coil 9 which is arranged in buffer tank 8 and which is not used in this embodiment to heat the content of buffer tank 8. The liquid flowing through coil 9 is instead heated by the content of buffer tank 8.
  • the embodiment shown in figure 5 differs further in the location of mixing valve 12; in the present embodiment this is placed behind the secondary side 14 of heat exchanger 10, so that only after passing through heat exchanger 10 is the tap water mixed with the non-heated tap water.
  • mixing valve 12 in the present embodiment this is placed behind the secondary side 14 of heat exchanger 10, so that only after passing through heat exchanger 10 is the tap water mixed with the non-heated tap water.
  • a thermostatic mixing valve is used a more precise tap water temperature is obtained at the draw-off point; variations in the temperature increase caused by heat exchanger 10 are in any case equalized, while on the other hand the temperature at the end of the heat exchanger is higher, so that the heat exchanger is perhaps less effective.

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Air Supply (AREA)
EP96201018A 1995-04-24 1996-04-16 Kombinierter Kessel mit verbesserter Leistung Expired - Lifetime EP0740113B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1000210 1995-04-24
NL1000210A NL1000210C2 (nl) 1995-04-24 1995-04-24 Combiketel met verbeterde prestatie.

Publications (2)

Publication Number Publication Date
EP0740113A1 true EP0740113A1 (de) 1996-10-30
EP0740113B1 EP0740113B1 (de) 2001-12-05

Family

ID=19760925

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96201018A Expired - Lifetime EP0740113B1 (de) 1995-04-24 1996-04-16 Kombinierter Kessel mit verbesserter Leistung

Country Status (6)

Country Link
EP (1) EP0740113B1 (de)
AT (1) ATE210267T1 (de)
DE (1) DE69617519T2 (de)
DK (1) DK0740113T3 (de)
ES (1) ES2164828T3 (de)
NL (1) NL1000210C2 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330649A (en) * 1997-10-27 1999-04-28 Alpha Therm Limited A water heating arrangement
EP0943877A2 (de) * 1998-03-18 1999-09-22 Alley Enterprises Limited Brauchwassererhitzer
GB2365953A (en) * 2000-07-07 2002-02-27 George Curtis Supplementary heat exchanger arrangement for providing domestic hot water
NL1037113C2 (nl) * 2009-07-09 2011-01-12 Petrus Cornelis Jozef Emmen Inrichting en werkwijze voor centrale verwarming en het leveren van warm tapwater.
WO2009022226A3 (en) * 2007-08-16 2012-05-31 Ariston Thermo S.P.A. Process for the production of domestic hot water and water for ambient heating, and relative boiler system
JP2016080183A (ja) * 2014-10-09 2016-05-16 大阪瓦斯株式会社 風呂装置
WO2019198006A1 (en) * 2018-04-11 2019-10-17 Savi Jessica Heating group
JP2020106227A (ja) * 2018-12-27 2020-07-09 株式会社ガスター 熱源装置
US10914475B2 (en) 2016-09-14 2021-02-09 Lochinvar, Llc Methods and system for controlling a combination boiler

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH155370A (de) * 1931-05-05 1932-06-30 Ebersold Paul Anlage zum Heizen und zur Warmwassererzeugung.
EP0098450A2 (de) * 1982-07-02 1984-01-18 Joh. Vaillant GmbH u. Co. Brennstoffbeheizte Wärmequelle
GB2218498A (en) * 1988-05-11 1989-11-15 United House Group Limited Improvements in or relating to a heating and hot water supply arrangement
DE9313023U1 (de) * 1992-08-27 1993-10-07 Joh. Vaillant Gmbh U. Co, 42859 Remscheid Kombinierter Wasserheizer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH155370A (de) * 1931-05-05 1932-06-30 Ebersold Paul Anlage zum Heizen und zur Warmwassererzeugung.
EP0098450A2 (de) * 1982-07-02 1984-01-18 Joh. Vaillant GmbH u. Co. Brennstoffbeheizte Wärmequelle
GB2218498A (en) * 1988-05-11 1989-11-15 United House Group Limited Improvements in or relating to a heating and hot water supply arrangement
DE9313023U1 (de) * 1992-08-27 1993-10-07 Joh. Vaillant Gmbh U. Co, 42859 Remscheid Kombinierter Wasserheizer

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330649A (en) * 1997-10-27 1999-04-28 Alpha Therm Limited A water heating arrangement
EP0943877A2 (de) * 1998-03-18 1999-09-22 Alley Enterprises Limited Brauchwassererhitzer
EP0943877A3 (de) * 1998-03-18 2000-06-07 Alley Enterprises Limited Brauchwassererhitzer
GB2365953A (en) * 2000-07-07 2002-02-27 George Curtis Supplementary heat exchanger arrangement for providing domestic hot water
GB2365953B (en) * 2000-07-07 2004-08-25 George Curtis Heating systems
WO2009022226A3 (en) * 2007-08-16 2012-05-31 Ariston Thermo S.P.A. Process for the production of domestic hot water and water for ambient heating, and relative boiler system
EP2573471A1 (de) * 2007-08-16 2013-03-27 Ariston Thermo S.P.A. Verfahren zur Herstellung von heißem Wasser, und Wasser für Umgebungserhitzung, und dazugehöriges Kesselsystem
NL1037113C2 (nl) * 2009-07-09 2011-01-12 Petrus Cornelis Jozef Emmen Inrichting en werkwijze voor centrale verwarming en het leveren van warm tapwater.
JP2016080183A (ja) * 2014-10-09 2016-05-16 大阪瓦斯株式会社 風呂装置
US10914475B2 (en) 2016-09-14 2021-02-09 Lochinvar, Llc Methods and system for controlling a combination boiler
US11603996B2 (en) 2016-09-14 2023-03-14 Lochinvar, Llc Methods and system for controlling a combination boiler
WO2019198006A1 (en) * 2018-04-11 2019-10-17 Savi Jessica Heating group
JP2020106227A (ja) * 2018-12-27 2020-07-09 株式会社ガスター 熱源装置
JP7217628B2 (ja) 2018-12-27 2023-02-03 株式会社ガスター 熱源装置

Also Published As

Publication number Publication date
ES2164828T3 (es) 2002-03-01
DE69617519D1 (de) 2002-01-17
DK0740113T3 (da) 2002-03-04
EP0740113B1 (de) 2001-12-05
DE69617519T2 (de) 2002-05-29
ATE210267T1 (de) 2001-12-15
NL1000210C2 (nl) 1996-10-25

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