US3669351A - Circulation water heater with domestic hot water supply - Google Patents

Circulation water heater with domestic hot water supply Download PDF

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Publication number
US3669351A
US3669351A US62054A US3669351DA US3669351A US 3669351 A US3669351 A US 3669351A US 62054 A US62054 A US 62054A US 3669351D A US3669351D A US 3669351DA US 3669351 A US3669351 A US 3669351A
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US
United States
Prior art keywords
water heater
water
radiator
valve
heat exchanger
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.)
Expired - Lifetime
Application number
US62054A
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English (en)
Inventor
Hans Meier
Frithjof Carouge
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.)
Vaillant GmbH
Original Assignee
Joh Vaillant GmbH and Co
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 Joh Vaillant GmbH and Co filed Critical Joh Vaillant GmbH and Co
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Publication of US3669351A publication Critical patent/US3669351A/en
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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
    • 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

Definitions

  • This invention relates to a circulation water heating system having provision for domestic hot water supply. Through the use of a change-over valve, the water circulation is changed from a heating circuit to a shunt connection between the feed line and a return line by-passing the heating system and containing the heat exchanger of the domestic hot water supply.
  • the change-over valve is arranged in the feed line, i.e. the pipe directing the heated water from the water heater to the radiators of the heating system. See, for example, the apparatus of U. S. Pat. No. 3,426,971. It has been found that annoying water hammer occurs with this type of system during the changing over, i.e. when the flow of the radiator is closed at the start of the draw of domestic hot water. It has been found out that this water hammer is due to the closing of the water passage by a closing movement of the valve in the direction of the water flow. This has the result that the pump pressure and the kinetic energy of the flowing water supports the closing process. The valve closure abuts the valve seat suddenly, which results in a water shock in the heating system.
  • the present invention positions the change-over valve in the return pipe in such a manner that the radiator portion of the system and the shunt connection are always cut off by a closing movement of the valve oppositely to the direction of the water flow.
  • the heating system comprises a water heater 1 including a gas burner 4.
  • a pump 2 forces the water through a trunk return line 3 to heater 1 and thence to the trunk feed line 5.
  • the feed line has a branch 6 going to a heat exchanger for domestic water and then to return branch 6.
  • flow through feed branch 8 goes to radiator 9 and return branch 8'.
  • the return branches 6' and 8' respectively, open into the change-over valve 10.
  • Valve 10 has movable valve closure means which in one position opens a passage so the return branch 6' communicates with return trunk 3 (and branch 8 is closed off) and in the other position an alternative passage is opened so that branch 8' communicates with trunk 3' (and branch 6 is closed off). When closing, these valve closure means move oppositely to the direction of water flow. Thereby the disadvantage described hereinbefore can be eliminated.

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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)
US62054A 1969-09-19 1970-08-07 Circulation water heater with domestic hot water supply Expired - Lifetime US3669351A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT889169A AT302583B (de) 1969-09-19 1969-09-19 Umlaufwasserheizungsanlage mit Gebrauchswassebareiter

Publications (1)

Publication Number Publication Date
US3669351A true US3669351A (en) 1972-06-13

Family

ID=3609403

Family Applications (1)

Application Number Title Priority Date Filing Date
US62054A Expired - Lifetime US3669351A (en) 1969-09-19 1970-08-07 Circulation water heater with domestic hot water supply

Country Status (6)

Country Link
US (1) US3669351A (de)
AT (1) AT302583B (de)
BE (1) BE755715A (de)
DE (1) DE2020321B2 (de)
FR (1) FR2061141A5 (de)
NL (1) NL7012248A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4065054A (en) * 1976-06-03 1977-12-27 Joh. Vaillant Kg Circulating water heater
US4671459A (en) * 1984-11-28 1987-06-09 Fasto B.V. Regulating device for a central heating plant containing a hot water supply
US5518022A (en) * 1994-09-06 1996-05-21 Ziehm; Raymond G. Aspirator water circulation apparatus
US5687908A (en) * 1994-09-28 1997-11-18 Gas Research Institute Non-condensing dual temperature combination space heating and hot water system
US6161567A (en) * 1997-10-27 2000-12-19 Ziehm; Raymond G. Single chamber water circulator
EP1598588A1 (de) * 2004-05-21 2005-11-23 Giorgio Scanferla Kessel für kombinierte Heizwasser- und Sanitärwasserherstellung mit einer Anordnung zur Vermeidung vom Wasserschlag in dem Bypass- Kreislauf

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1519522A (en) * 1974-10-30 1978-08-02 Bosch Gmbh Robert Heating apparatus
DE10322385B3 (de) 2003-05-17 2004-11-11 Moeller Gmbh Verfahren und Schaltungsanordnung zur Funktionsüberwachung eines elektronisch- mechanischen Positionsschalters

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426971A (en) * 1965-11-22 1969-02-11 Vaillant Joh Kg Arrangement in a hot-water circulation heating with domestic water heater

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426971A (en) * 1965-11-22 1969-02-11 Vaillant Joh Kg Arrangement in a hot-water circulation heating with domestic water heater

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4065054A (en) * 1976-06-03 1977-12-27 Joh. Vaillant Kg Circulating water heater
US4671459A (en) * 1984-11-28 1987-06-09 Fasto B.V. Regulating device for a central heating plant containing a hot water supply
US5518022A (en) * 1994-09-06 1996-05-21 Ziehm; Raymond G. Aspirator water circulation apparatus
US5687908A (en) * 1994-09-28 1997-11-18 Gas Research Institute Non-condensing dual temperature combination space heating and hot water system
US6161567A (en) * 1997-10-27 2000-12-19 Ziehm; Raymond G. Single chamber water circulator
EP1598588A1 (de) * 2004-05-21 2005-11-23 Giorgio Scanferla Kessel für kombinierte Heizwasser- und Sanitärwasserherstellung mit einer Anordnung zur Vermeidung vom Wasserschlag in dem Bypass- Kreislauf

Also Published As

Publication number Publication date
DE2020321A1 (de) 1971-12-16
DE2020321B2 (de) 1972-04-20
BE755715A (fr) 1971-02-15
NL7012248A (de) 1971-03-23
FR2061141A5 (de) 1971-06-18
AT302583B (de) 1972-10-25

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