EP0976989A2 - Wasserkreislauf eines kombinierten Gaswandkessels - Google Patents

Wasserkreislauf eines kombinierten Gaswandkessels Download PDF

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Publication number
EP0976989A2
EP0976989A2 EP98123350A EP98123350A EP0976989A2 EP 0976989 A2 EP0976989 A2 EP 0976989A2 EP 98123350 A EP98123350 A EP 98123350A EP 98123350 A EP98123350 A EP 98123350A EP 0976989 A2 EP0976989 A2 EP 0976989A2
Authority
EP
European Patent Office
Prior art keywords
water
circuit
way valve
primary circuit
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
EP98123350A
Other languages
English (en)
French (fr)
Other versions
EP0976989B1 (de
EP0976989A3 (de
Inventor
Marco Tagliaferri
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.)
Riello SpA
Original Assignee
Iaber 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 Iaber SpA filed Critical Iaber SpA
Publication of EP0976989A2 publication Critical patent/EP0976989A2/de
Publication of EP0976989A3 publication Critical patent/EP0976989A3/de
Application granted granted Critical
Publication of EP0976989B1 publication Critical patent/EP0976989B1/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
    • 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 
    • 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
    • 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
    • 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

Definitions

  • the water circuit of wall-mounted gas-fired boilers for combined service generally comprises a primary circuit connected to the room heating units in which hot water for room heating is circulated and a secondary circuit for the production of hot water for domestic use.
  • the secondary circuit is usually connected to a water supply pipe which is branched off from the water mains.
  • the water circuit and the room heating units connected thereto through pipes must be filled with water in order to test the boiler and to permit it to be operated.
  • the water filling means is generally formed of a pipe branched off from the secondary circuit and connected to the primary circuit of the boiler.
  • a manually operated ON-OFF valve is provided in this pipe which when in open position permits the primary circuit to be filled with water and when in closed position disconnects the primary circuit from the secondary circuit.
  • the present invention is aimed at providing a wall-mounted gas-fired boiler for combined service in which the water circuit comprises water filling means capable of offering better accessibility and less maintenance with lower costs than those of conventional water filling means which are known in the art.
  • the water circuit of the wall-mounted gas-fired boiler for combined service includes a primary circuit in which the hot water for room heating is circulated and a secondary circuit in which hot water for domestic use is circulated and is characterized in that it comprises a three-way valve arranged so as to connect the primary circuit or the secondary circuit to the water mains or to disconnect both therefrom.
  • the three-way valve in its first position disconnects the primary circuit and the secondary circuit from the water mains, in its second position connects the room heating primary circuit to the water mains in order to permit it to be filled with water and in its third position connects the secondary circuit to the water mains.
  • the three-way valve is set in its third position, i.e. with the secondary circuit connected to the water mains.
  • Figure 1 there is generally indicated by 10 the water circuit of a combined service wall-mounted gas-fired boiler according to a well-known configuration.
  • the water circuit of the boiler comprises a primary circuit 11 in which hot water for room heating is circulated and a secondary circuit 12 in which hot water for domestic use is circulated.
  • the primary circuit 11 comprises a primary heat exchanger 13, a differential pressure operated three-way change-over valve 14, a pressure-surge reducing valve 15, a by-pass pipe 16 with its relevant by-pass valve 17, a circulation pump 18 provided with an air separator, a spring-loaded safety valve 19 which is set at the maximum overpressure of the primary circuit, an expansion tank 20, a water supply pipe M and a water return pipe R for the room heating units, for example radiators.
  • a gas burner 21 Located under the primary heat exchanger 13 are a gas burner 21 connected to a gas supply pipe 20 through an ON-OFF valve 22 and a modulating valve 23.
  • the secondary circuit 12 comprises a secondary heat exchanger 24, a domestic water flow limiter 26, a domestic water inlet pipe E and outlet pipe U.
  • the domestic water inlet pipe E is connected to the water mains D through an ON-OFF valve 27.
  • the domestic water is prepared in the secondary heat exchanger 24.
  • the hot water which has been heated in the primary heat exchanger 13 is diverted by the three-way change-over valve 14 into a pipe 28 connected to the secondary heat exchanger 24 so as to flow therethrough and heat the domestic water. Then the hot water returns to the primary circuit 11 on the suction side of the circulation pump 18 and upstream the expansion tank 20.
  • a check valve 29 is suitably provided in the pipe 28.
  • Fig. 1 there is also shown the water filling means for filling the primary circuit 11 and the room heating units connected thereto through the pipes M,R.
  • the water filling means comprises a pipe 30 which is branched off from the secondary circuit 12 and is connected to the primary circuit 11.
  • a check valve 25 and a manually operable ON-OFF valve 31 are provided in the pipe 30.
  • the ON-OFF valve 31 in open position permits the primary circuit 11 to be filled with water and in closed position disconnects the primary circuit 11 from the secondary circuit 12.
  • Fig. 2 there is shown the water circuit of the combined service wall-mounted gas-fired boiler according to the present invention.
  • the water circuit is different from that shown in Figure 1 in that the water filling means of the primary circuit 11 comprises only a three-way valve 32.
  • the three-way valve 32 is connected to the water mains D, to the domestic water inlet pipe E and to the water return pipe R from the room heating units.
  • the check valve 25 is located between the three-way valve 32 and the return pipe R.
  • the valve member of the three-way valve 32 can take three operative positions, namely: a first position in which it disconnects both the primary circuit 11 and the secondary circuit 12 from the water mains D, a second position in which it connects the primary circuit 11 only to the water mains D and a third position in which it connects the secondary circuit 12 only to the water mains D.
  • connection plate P of the boiler support frame T usually serves as a lower transverse member of the boiler support frame T of the kind described herein and it embodies the various fittings of the water circuit.
  • connection plate P Apart from the three-way valve 32, the supply and return pipe fittings 33, 34 for circulating the room heating water, the domestic water outlet fitting 35 and the gas inlet fitting 36 are mounted onto the connection plate P.
  • the three-way valve 32 is connected to the heating water return fitting by means of a connection pipe 37.
  • Fig. 4 is a perspective view of the three-way valve 32. There can be seen the attachments 32D,32E,32R for connection to the water mains D, to the domestic water inlet pipe E and to the water return pipe R from the room heating units, respectively.
  • a valve control lever L is provided for operating the three-way valve 32.

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  • 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)
  • Steam Or Hot-Water Central Heating Systems (AREA)
EP98123350A 1998-07-29 1998-12-08 Wasserkreislauf eines kombinierten Gaswandkessels Expired - Lifetime EP0976989B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI980531U 1998-07-29
IT1998MI000531U IT244172Y1 (it) 1998-07-29 1998-07-29 Circuito idraulico di caldaia murale a gas per servizio combinato

Publications (3)

Publication Number Publication Date
EP0976989A2 true EP0976989A2 (de) 2000-02-02
EP0976989A3 EP0976989A3 (de) 2000-11-08
EP0976989B1 EP0976989B1 (de) 2002-02-06

Family

ID=11379338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98123350A Expired - Lifetime EP0976989B1 (de) 1998-07-29 1998-12-08 Wasserkreislauf eines kombinierten Gaswandkessels

Country Status (4)

Country Link
EP (1) EP0976989B1 (de)
DE (1) DE69803756T2 (de)
ES (1) ES2172854T3 (de)
IT (1) IT244172Y1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109442731A (zh) * 2018-12-15 2019-03-08 成都前锋电子有限责任公司 一种零冷水燃气壁挂炉***

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4102141A1 (de) 2021-06-11 2022-12-14 BDR Thermea Group B.V. Sicherheitsmechanismus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0568122A2 (de) * 1992-03-12 1993-11-03 FUGAS s.r.l. Ventilanordnung für Anlagen, die sowohl für Heizungs- als auch für Haushaltsheisswasser vorgesehen ist
DE9406048U1 (de) * 1994-04-12 1994-06-16 Henkenjohann, Walter, 33415 Verl Vorrichtung zum automatischen Nachfüllen von Heizungsanlagen
DE19623807A1 (de) * 1995-12-12 1997-06-19 Tong Yang Magic Corp Wasserrohrplatte für einen Gasboiler
EP0829687A2 (de) * 1996-08-13 1998-03-18 WILO GmbH Befülleinrichtung für Hydraulikbaugruppe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0568122A2 (de) * 1992-03-12 1993-11-03 FUGAS s.r.l. Ventilanordnung für Anlagen, die sowohl für Heizungs- als auch für Haushaltsheisswasser vorgesehen ist
DE9406048U1 (de) * 1994-04-12 1994-06-16 Henkenjohann, Walter, 33415 Verl Vorrichtung zum automatischen Nachfüllen von Heizungsanlagen
DE19623807A1 (de) * 1995-12-12 1997-06-19 Tong Yang Magic Corp Wasserrohrplatte für einen Gasboiler
EP0829687A2 (de) * 1996-08-13 1998-03-18 WILO GmbH Befülleinrichtung für Hydraulikbaugruppe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109442731A (zh) * 2018-12-15 2019-03-08 成都前锋电子有限责任公司 一种零冷水燃气壁挂炉***

Also Published As

Publication number Publication date
IT244172Y1 (it) 2002-03-07
EP0976989B1 (de) 2002-02-06
ES2172854T3 (es) 2002-10-01
DE69803756T2 (de) 2002-11-14
DE69803756D1 (de) 2002-03-21
ITMI980531U1 (it) 2000-01-29
EP0976989A3 (de) 2000-11-08

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