EP1001227A2 - Kombinierter Wandheizkessel für Durchlaufheizung von Brauchwasser und Heizungssystem - Google Patents

Kombinierter Wandheizkessel für Durchlaufheizung von Brauchwasser und Heizungssystem Download PDF

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Publication number
EP1001227A2
EP1001227A2 EP99121975A EP99121975A EP1001227A2 EP 1001227 A2 EP1001227 A2 EP 1001227A2 EP 99121975 A EP99121975 A EP 99121975A EP 99121975 A EP99121975 A EP 99121975A EP 1001227 A2 EP1001227 A2 EP 1001227A2
Authority
EP
European Patent Office
Prior art keywords
water
heat exchanger
circuit
manifold
gas
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
EP99121975A
Other languages
English (en)
French (fr)
Other versions
EP1001227A3 (de
EP1001227B1 (de
Inventor
Michele Cavallini
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.)
Arca Srl
Original Assignee
Arca Srl
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 Arca Srl filed Critical Arca Srl
Publication of EP1001227A2 publication Critical patent/EP1001227A2/de
Publication of EP1001227A3 publication Critical patent/EP1001227A3/de
Application granted granted Critical
Publication of EP1001227B1 publication Critical patent/EP1001227B1/de
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
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1083—Filling valves or arrangements for filling
    • 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 present invention relates to a wall-mounted combination boiler for instant sanitary and heating system.
  • an instant wall-mounted combination boiler i.e., a boiler provided with an instant heat exchanger for producing sanitary water
  • the aim of the present invention is to obviate this drawback by providing a wall-mounted combination boiler capable of ensuring immediate availability of sanitary hot water.
  • a wall-mounted combination boiler for instant sanitary and heating system characterized in that it comprises a circuit, provided with a circulator, for connecting a gas-water heat exchanger of a boiler to a surface heat exchanger for instant heating of the water of the sanitary system, said circuit comprising a manifold provided with connectors respectively to the delivery and the return of a heating system, said circuit being provided with means for the automatic adjustment of the operation of the burner of said gas-water heat exchanger and of said circulator, said means being adapted to keep the water of said circuit constantly at the temperature suitable to ensure immediate heating of the sanitary water that flows through said instant surface heat exchanger.
  • the boiler has connections 2 and 3 respectively for receiving cold water of the sanitary system and for delivering heated water to the users of the sanitary system, symbolically represented by a faucet 4, delivery and return connections, respectively designated by reference numerals 5 and 6, coupled to floor heating units of rooms, schematically represented by a coil 7, and connections 8 and 9, which are connected to radiators for heating other rooms, schematically designated by the reference numeral 10.
  • the devices of the boiler comprise a manifold 11, which receives, by means of a line 12, the hot water produced by a gas-water heat exchanger 13. Delivery and return connections, respectively designated by the reference numerals 14 and 15, of a heating system branch off from manifold 11.
  • the heating system is divided into two circuits which are meant to serve the underfloor coil 7 and the radiators 10 at different temperatures: for example, the coil 7 can be supplied with water at 35°C and the radiators 10 can be supplied with water at 55°C.
  • the first circuit comprises a delivery line 16, which connects the connection 14 of the manifold 11 to a circulator 17 for sending water to the connection 8 to the radiators 10, which are accordingly supplied exclusively with water that arrives directly from manifold 11, and the reference numeral 18 designates a return line of the cold water from the connection 9 to radiators 10 to the connection 15 of the manifold 11.
  • the second circuit draws, by means of the line 19, hot water from the delivery line 16, and said line 19 reaches a mixing valve 20 in order to be mixed with cold water which is drawn, by means of a line 21, from a line 22 for return from the coil 7, which is connected to the connector 6 at one end and to the return line 18 of the first circuit at the other end.
  • the coil 7 is fed with water which is mixed at a temperature which is lower than the temperature in the manifold 11 and is conveyed to the connection 5 from a line 23 with a circulator 24.
  • a third circuit branches out from the manifold 11 and is meant to heat the water of the sanitary system.
  • Such circuit first of all comprises a line 25, which branches out from a connection 26 of the manifold 11.
  • the line 25 reaches a three-way valve 27, which selectively sends water to a line 28 for connection to a line 29 for return to the gas-water heat exchanger 13 of the boiler, complete with a circulator 30, and to a line 31 that supplies an instant surface heat exchanger 32 of the sanitary cold water that reaches the boiler by means of the connection 2, reaches a shunt valve 27 by means of a line 33 for actuating, in a known manner, the automatic selection of said valve with priority to the sanitary system, passes through the instant heat exchanger 32, and reaches, after being heated, the connection 3 to the sanitary users such as 4 by means of a line 34.
  • the water that had entered the heat exchanger 32 by means of the line 31 is cold when it leaves the exchanger by means of the line 35 for connection to the line 29 for return to the gas-water heat exchanger 13.
  • An important characteristic of the invention consists of the fact that the third circuit that branches out from the manifold 11 is provided with means for the automatic adjustment of the operation of the burner of the gas-water heat exchanger 13 of the boiler and of the circulator 30; such means are adapted to keep the water of said circuit constantly at a temperature which ensures immediate heating of the sanitary water that passes through the instant heat exchanger 32.
  • Said means can comprise, for example, a probe for detecting the temperature of the water, which is inserted in the manifold 11, is suitable to send, according to requirements, a command signal for switching on or off the burner of said gas-water heat exchanger 13 and the circulator 30.
  • Another important characteristic of the invention consists of the fact that the manifold 11 has a capacity which is limited to a value between 6 and 10 liters; a particularly favorable situation is thus produced because this capacity is small enough to avoid undesirable overall dimensions and excessive heat loss but is sufficient to cope with the demand of hot water in the short interval, usually equal to 30-40 seconds, that the system needs to reach the steady state, ensuring immediate availability of hot water.
  • the described invention is susceptible of numerous modifications and variations, all of which are within the scope of the inventive concept; in particular, the capacity of the manifold 11 can be outside the range of values cited by way of example and the automatic adjustment means included in the third circuit that branches out from the manifold may be any; the shunt valve 27 may also be omitted and in this case the water drawn from the manifold 11 is fed directly to the heat exchanger 32.
  • the manifold 11 may also be arranged on the line 29 for the return of the water from the instant heat exchanger 32 to the gas-water heat exchanger 13.
  • the heating system can also provide for the presence of a single 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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
EP99121975A 1998-11-16 1999-11-10 Kombinierter Wandheizkessel für Durchlaufheizung von Brauchwasser und Heizungssystem Expired - Lifetime EP1001227B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMN980044 1998-11-16
IT1998MN000044A IT1305780B1 (it) 1998-11-16 1998-11-16 Caldaia murale combinata per impianto di riscaldamento e sanitarioimmediato

Publications (3)

Publication Number Publication Date
EP1001227A2 true EP1001227A2 (de) 2000-05-17
EP1001227A3 EP1001227A3 (de) 2001-10-17
EP1001227B1 EP1001227B1 (de) 2004-05-19

Family

ID=11384745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99121975A Expired - Lifetime EP1001227B1 (de) 1998-11-16 1999-11-10 Kombinierter Wandheizkessel für Durchlaufheizung von Brauchwasser und Heizungssystem

Country Status (4)

Country Link
EP (1) EP1001227B1 (de)
AT (1) ATE267366T1 (de)
DE (1) DE69917412D1 (de)
IT (1) IT1305780B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400078B (de) * 1991-02-22 1995-09-25 Vaillant Gmbh Heizeinrichtung zur erwärmung von heiz- und brauchwasser
FR2727195A1 (fr) * 1994-11-21 1996-05-24 Financ & Comm Chablais Module de distribution pour installation de chauffage central avec plancher chauffant et radiateurs
DE19613744A1 (de) * 1995-04-01 1996-12-12 Vaillant Joh Gmbh & Co Steuer- oder Regelvorrichtung für einen Wasserheizer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400078B (de) * 1991-02-22 1995-09-25 Vaillant Gmbh Heizeinrichtung zur erwärmung von heiz- und brauchwasser
FR2727195A1 (fr) * 1994-11-21 1996-05-24 Financ & Comm Chablais Module de distribution pour installation de chauffage central avec plancher chauffant et radiateurs
DE19613744A1 (de) * 1995-04-01 1996-12-12 Vaillant Joh Gmbh & Co Steuer- oder Regelvorrichtung für einen Wasserheizer

Also Published As

Publication number Publication date
DE69917412D1 (de) 2004-06-24
EP1001227A3 (de) 2001-10-17
ITMN980044A1 (it) 2000-05-16
ATE267366T1 (de) 2004-06-15
IT1305780B1 (it) 2001-05-16
EP1001227B1 (de) 2004-05-19

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