EP1965139A2 - Groupe hydraulique avec deux échangeurs thermiques secondaires pour systèmes de chaudières à gaz - Google Patents

Groupe hydraulique avec deux échangeurs thermiques secondaires pour systèmes de chaudières à gaz Download PDF

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Publication number
EP1965139A2
EP1965139A2 EP08101969A EP08101969A EP1965139A2 EP 1965139 A2 EP1965139 A2 EP 1965139A2 EP 08101969 A EP08101969 A EP 08101969A EP 08101969 A EP08101969 A EP 08101969A EP 1965139 A2 EP1965139 A2 EP 1965139A2
Authority
EP
European Patent Office
Prior art keywords
exchanger
heat
primary
connection
hydraulic group
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.)
Withdrawn
Application number
EP08101969A
Other languages
German (de)
English (en)
Other versions
EP1965139A3 (fr
Inventor
Giuseppe Fugazza
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.)
FUGAS SpA
Original Assignee
FUGAS SpA
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 FUGAS SpA filed Critical FUGAS SpA
Publication of EP1965139A2 publication Critical patent/EP1965139A2/fr
Publication of EP1965139A3 publication Critical patent/EP1965139A3/fr
Withdrawn legal-status Critical Current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
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • 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
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
    • 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
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • F24H9/142—Connecting hydraulic components
    • F24H9/144—Valve seats, piping and heat exchanger connections integrated into a one-piece hydraulic unit

Definitions

  • the present invention concerns a hydraulic group for gas boilers, particularly wall-mounted boilers, for mixed plants of domestic heating and production of sanitary warm water.
  • the known boilers of this type comprise a primary heat-exchanger through which the water of the domestic heating circuit circulates and is heated by a gas burner. Through the use of a three-way valve or other routing device, the water that has been heated in the primary heat-exchanger is carried either to the domestic heating circuit (i.e. to the radiators) or to a secondary heat-exchanger in case there is a request to draw sanitary warm water.
  • the secondary heat-exchanger is typically a plate heat-exchanger through which sanitary warm water is obtained.
  • EP 396627 discloses an arrangement for heat transfer heat to a remote heating system comprising two parallely connected heat-exchangers.
  • the water circulating through the primary heat-exchanger is the same water circulating through the domestic heating plant and is subject to contain impurities coming from the radiators, the pipelines or other components of the circuit. Such impurities can cause a clogging in the primary heat-exchanger (particularly when this latter is a condensation heat-exchanger) and in other components inside the boiler.
  • an additional (or second) secondary heat-exchanger and an additional pump are employed, so as to form two independent separate (unconnected) circuits, one located in the wall-mounted boiler and the other comprising the domestic heating elements (radiators).
  • the heating circuit can be split into two independent circuits that are not connected to one another, one circuit extending inside the wall-mounted boiler and a second one in the domestic heating plant (radiators).
  • Fig. 1 is a circuit diagram of a boiler heating system incorporating a hydraulic group as claimed in invention.
  • Such system includes a gas burner (not shown), a primary heat-exchanger 1 and a pump 5 supplying the head height required for circulating water or another liquid to be heated by the burner in the primary heat-exchanger 1.
  • This circuits is the so-called inner circuit of the wall-mounted boiler.
  • the primary heat-exchanger 1 is connected, through a three-way valve 4 to the inlets of two secondary heat-exchangers 2 and 3 that can be substantially equal to one another.
  • the pump 5 connects the two outlets of the heat-exchangers 2 and 3 to the primary heat-exchanger 1.
  • the "secondary" circuit of secondary heat-exchanger 2 where as explained above the term “secondary” indicates the circuit of the liquid that is being heated, is connected to the radiators or other elements of the domestic heating system, generically shown by the reference 19, through an additional pump 6 on the delivery side.
  • the "secondary" circuit of secondary heat-exchanger 3 is connected to the inlet and to the outlet of the sanitary water, and more precisely its inlet 17 is connected to the water supply networks RI, while the outlet 25 is connected to the tap F delivering the sanitary warm water.
  • a sensor 7 of the flow of sanitary water controls the switching of the three-way valve 4 (either directly or indirectly through an electronic card).
  • the heated liquid is diverted by the three-way valve 4 toward the secondary heat-exchanger 2.
  • the heated liquid transfers heat to the liquid (or fluid) circulating in the secondary circuit and this liquid is circulated through the domestic heating plant 19 and through the associated radiators (or through a floor heating system) thanks to the head delivered by the pump 6.
  • the group of the present invention is formed as a hydraulic group comprising two hydraulic sub-groups, respectively a delivery sub-group 10 and a return sub-group 20.
  • the delivery sub-group 10 comprises:
  • the return subgroup 20 comprises:
  • Each subgroup 10, 20 can be built either as a single one-piece block or from several parts assembled together in various way, without prejudice for their overall specific function as above described.
  • the material from which said subgroups are made can typically be brass or a composite plastics.
  • the second pump 6 can be integrated by providing for a dedicated connection in the delivery subgroup, in order to increase the flow rate of the domestic heating plant and improving its heat-exchange capabilities.
  • the invention achieves several advantages.
  • the hydraulic group can be made as a quite compact, small size group, so as to be integrated within the standard dimensions of the today's boilers without the need to add devices outside of the boiler, and this would help to limit the costs and the space required for the installation.

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)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Hydrogen, Water And Hydrids (AREA)
EP08101969.7A 2007-02-27 2008-02-25 Groupe hydraulique avec deux échangeurs thermiques secondaires pour systèmes de chaudières à gaz Withdrawn EP1965139A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000370A ITMI20070370A1 (it) 2007-02-27 2007-02-27 Gruppo idraulico con doppio scambiatore secondario per inmpianti con caldaie a gas

Publications (2)

Publication Number Publication Date
EP1965139A2 true EP1965139A2 (fr) 2008-09-03
EP1965139A3 EP1965139A3 (fr) 2013-11-13

Family

ID=39365929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08101969.7A Withdrawn EP1965139A3 (fr) 2007-02-27 2008-02-25 Groupe hydraulique avec deux échangeurs thermiques secondaires pour systèmes de chaudières à gaz

Country Status (2)

Country Link
EP (1) EP1965139A3 (fr)
IT (1) ITMI20070370A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20164036A1 (it) * 2016-06-01 2017-12-01 O T M A S N C Di Spaggiari & C Gruppo idraulico per un impianto di produzione di acqua calda

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0396627A1 (fr) 1988-03-24 1990-11-14 Steag Fernwaerme Agencement pour le transfert de chaleur a distance a une installation de chauffage d'eau.
DE19912284A1 (de) 1999-03-18 2000-09-28 Grundfos A S Bjerringbro Kompaktheizungsanlage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9408073U1 (de) * 1994-05-17 1994-07-28 DMS - Kalt- und Warmwassertechnik Mühlena - Schöps - Tittel oHG, 22113 Oststeinbek Fernwärme-Versorgungssystem
IT1284431B1 (it) * 1996-03-22 1998-05-21 Fugas Srl Gruppo idraulico con pompa integrata per impianti misti di riscaldamento e acqua sanitaria
ATE397737T1 (de) * 2003-11-03 2008-06-15 Grundfos As Baueinheit für eine kompaktheizungsanlage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0396627A1 (fr) 1988-03-24 1990-11-14 Steag Fernwaerme Agencement pour le transfert de chaleur a distance a une installation de chauffage d'eau.
DE19912284A1 (de) 1999-03-18 2000-09-28 Grundfos A S Bjerringbro Kompaktheizungsanlage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20164036A1 (it) * 2016-06-01 2017-12-01 O T M A S N C Di Spaggiari & C Gruppo idraulico per un impianto di produzione di acqua calda
EP3252394A1 (fr) * 2016-06-01 2017-12-06 O.T.M.A. S.N.C. di Spaggiari & C. Unité hydraulique pour un système de production d'eau chaude

Also Published As

Publication number Publication date
EP1965139A3 (fr) 2013-11-13
ITMI20070370A1 (it) 2008-08-28

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