FR2351372A1 - Instantaneous gas water heater - has copper water tube inside finned aluminium outer tube welded inside heat exchange chamber - Google Patents

Instantaneous gas water heater - has copper water tube inside finned aluminium outer tube welded inside heat exchange chamber

Info

Publication number
FR2351372A1
FR2351372A1 FR7712136A FR7712136A FR2351372A1 FR 2351372 A1 FR2351372 A1 FR 2351372A1 FR 7712136 A FR7712136 A FR 7712136A FR 7712136 A FR7712136 A FR 7712136A FR 2351372 A1 FR2351372 A1 FR 2351372A1
Authority
FR
France
Prior art keywords
tube
heat exchange
outer tube
exchange chamber
water heater
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
FR7712136A
Other languages
French (fr)
Other versions
FR2351372B1 (en
Inventor
Peter Friedrich
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 SARL
Original Assignee
Vaillant SARL
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 Vaillant SARL filed Critical Vaillant SARL
Publication of FR2351372A1 publication Critical patent/FR2351372A1/en
Application granted granted Critical
Publication of FR2351372B1 publication Critical patent/FR2351372B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
    • 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
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

An instantenous water heater has a heating chamber (1) heated by gas, with the water tube (3) passing through it. This tube is a double tube, the inner tube (5) being of copper, and carrying the water connections (11). The outer tube (4) is of aluminium with heat exchange fins (15) welded along it. The walls of the chamber are also welded to the outer tube, and these welds (13) and the welds (14) for the fins are carried out at the same temperature. The welds (12) for the fitting (11) on the end of the inner tube are carried out at approx. this temp.
FR7712136A 1976-05-15 1977-04-18 Instantaneous gas water heater - has copper water tube inside finned aluminium outer tube welded inside heat exchange chamber Granted FR2351372A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7615772 1976-05-15

Publications (2)

Publication Number Publication Date
FR2351372A1 true FR2351372A1 (en) 1977-12-09
FR2351372B1 FR2351372B1 (en) 1980-11-14

Family

ID=6665545

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7712136A Granted FR2351372A1 (en) 1976-05-15 1977-04-18 Instantaneous gas water heater - has copper water tube inside finned aluminium outer tube welded inside heat exchange chamber

Country Status (1)

Country Link
FR (1) FR2351372A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552216A1 (en) * 1983-09-21 1985-03-22 Onera (Off Nat Aerospatiale) Improvements made to heat exchanger pipes and to exchangers made with such pipes
EP1026454A3 (en) * 1999-02-04 2002-10-16 Rinnai Kabushiki Kaisha Heat exchanger apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2004012A1 (en) * 1968-03-15 1969-11-14 Radiation Ltd
FR2071267A5 (en) * 1969-12-23 1971-09-17 Berody Rene

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2004012A1 (en) * 1968-03-15 1969-11-14 Radiation Ltd
FR2071267A5 (en) * 1969-12-23 1971-09-17 Berody Rene

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552216A1 (en) * 1983-09-21 1985-03-22 Onera (Off Nat Aerospatiale) Improvements made to heat exchanger pipes and to exchangers made with such pipes
EP1026454A3 (en) * 1999-02-04 2002-10-16 Rinnai Kabushiki Kaisha Heat exchanger apparatus

Also Published As

Publication number Publication date
FR2351372B1 (en) 1980-11-14

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Legal Events

Date Code Title Description
ST Notification of lapse