EP0594933A1 - Procédé pour fabriquer des chauffes-eau instantanés électriques pour liquides - Google Patents

Procédé pour fabriquer des chauffes-eau instantanés électriques pour liquides Download PDF

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Publication number
EP0594933A1
EP0594933A1 EP93105465A EP93105465A EP0594933A1 EP 0594933 A1 EP0594933 A1 EP 0594933A1 EP 93105465 A EP93105465 A EP 93105465A EP 93105465 A EP93105465 A EP 93105465A EP 0594933 A1 EP0594933 A1 EP 0594933A1
Authority
EP
European Patent Office
Prior art keywords
heating element
coil
tubular
tube
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
EP93105465A
Other languages
German (de)
English (en)
Other versions
EP0594933B1 (fr
Inventor
Erich Hillinger
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.)
Tuerk and Hillinger GmbH
Original Assignee
Tuerk and Hillinger GmbH
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 Tuerk and Hillinger GmbH filed Critical Tuerk and Hillinger GmbH
Publication of EP0594933A1 publication Critical patent/EP0594933A1/fr
Application granted granted Critical
Publication of EP0594933B1 publication Critical patent/EP0594933B1/fr
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
    • 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
    • F24H1/142—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 electric energy supply
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • H05B3/82—Fixedly-mounted immersion heaters

Definitions

  • the invention relates to a method for producing instantaneous water heaters for liquids according to the preamble of patent claim 1.
  • a flow tube is provided for the liquid to be heated, around which a tubular heating element in the form of a coil is placed.
  • the latter is provided on its outer jacket with a helical groove, the flanks of which are pressed against the tubular heater inserted into the groove.
  • This structure does not require any soldering or welding work, but the production of the flow tube is very complex.
  • a continuous-flow heater has become known from DE-OS 3534 754 A1, in which a helical tubular heater is arranged on the continuous tube and is covered with a metal jacket.
  • a helical tubular heater is arranged on the continuous tube and is covered with a metal jacket.
  • DE-PS 3720 927 also shows a tubular heating element arranged in the form of a spiral on the flow tube. However, due to the narrowly limited contact surfaces between the heating element and the flow tube, the heat transfer is also restricted.
  • the covering with a molded part made of insulating material can only improve little here.
  • the object of the present invention was therefore to provide a process for the production of instantaneous water heaters of the type described which, with relatively little technical effort and avoiding expensive soldering and welding work, enables the production of an efficient instantaneous water heater in which the heat generated by the radiator has no significant value Losses are transferred to the medium flowing through.
  • the instantaneous heater shown in FIG. 1 consists of a continuous tube 1, two half-shells 3 and 4 made of aluminum or the like and holding a helically shaped tubular heating element 2 and a jacket tube 5 made of steel and the two electrical connections 6 for the tubular heating element 2.
  • the two half-shells 3 and 4 are produced from an extruded part S, which is provided with a plurality of parallel longitudinal grooves 7 and is available in lengths of up to approximately 6 m.
  • pieces corresponding to the length of the continuous-flow heater are cut off, the cut edges S running at an angle to the longitudinal edge of the extruded part S determined by the pitch of the coil of the tubular heating element.
  • Two of these pieces separated in this way are now formed into a half-shell 3 or 4, then put together to form an annular body, and the tubular heater 2 previously formed into a spiral is now inserted into the now also helical grooves 7, for example by screwing in.
  • the flow tube 1 and the jacket tube 5 are pushed in or over and this structure is subjected to a pressing process.
  • the pressure acting here also has the consequence, among other things, that the jacket tube 5 is reduced in diameter and the relatively soft aluminum of the half-shells 3 and 4 is plastically deformed, such that, as shown in FIG. 4, the tube heater is almost in diameter is completely enveloped and an extraordinarily good heat transfer between the radiator and the half-shell is achieved.
  • thermal paste can also be applied to the tubular heating element and the flow tube may be applied to close micropores or the like.
  • such an order has the advantage that thermal expansions that occur are compensated for.
  • the latter can be knurled or fluted on its circumference before installation.
  • the instantaneous water heater according to the invention can also be produced without an outer jacket if high operating temperatures are not required.
  • the desired helical shape of the grooves 7 is also obtained here.
  • the preformed tubular heater can also be installed here by screwing it into the ring body.

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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)
  • Resistance Heating (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)
EP93105465A 1992-10-24 1993-04-02 Procédé pour fabriquer des chauffes-eau instantanés électriques pour liquides Expired - Lifetime EP0594933B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4235989 1992-10-24
DE4235989A DE4235989A1 (de) 1992-10-24 1992-10-24 Verfahren zum Herstellen von elektrischen Durchlauferhitzern für Flüssigkeiten

Publications (2)

Publication Number Publication Date
EP0594933A1 true EP0594933A1 (fr) 1994-05-04
EP0594933B1 EP0594933B1 (fr) 1995-10-11

Family

ID=6471291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93105465A Expired - Lifetime EP0594933B1 (fr) 1992-10-24 1993-04-02 Procédé pour fabriquer des chauffes-eau instantanés électriques pour liquides

Country Status (3)

Country Link
EP (1) EP0594933B1 (fr)
AT (1) ATE129114T1 (fr)
DE (2) DE4235989A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1395085A3 (fr) * 2002-08-22 2005-12-21 Türk + Hillinger GmbH Appareil de chauffage électrique pour les corps cylindriques
US7703188B2 (en) 2005-05-19 2010-04-27 Mold-Masters (2007) Limited Thermal shroud and method of making same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29910670U1 (de) 1999-06-18 1999-09-23 Türk & Hillinger GmbH, 78532 Tuttlingen Durchlauferhitzer mit PTC-Heizelementen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3307962A1 (de) * 1983-03-07 1984-09-20 Siemens AG, 1000 Berlin und 8000 München Elektrischer durchlauferhitzer fuer getraenkebereiter
DE3534754A1 (de) * 1985-09-28 1987-04-02 Bauknecht Hausgeraete Elektrischer durchlauferhitzer fuer haushaltgeraete

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3307962A1 (de) * 1983-03-07 1984-09-20 Siemens AG, 1000 Berlin und 8000 München Elektrischer durchlauferhitzer fuer getraenkebereiter
DE3534754A1 (de) * 1985-09-28 1987-04-02 Bauknecht Hausgeraete Elektrischer durchlauferhitzer fuer haushaltgeraete

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1395085A3 (fr) * 2002-08-22 2005-12-21 Türk + Hillinger GmbH Appareil de chauffage électrique pour les corps cylindriques
US7703188B2 (en) 2005-05-19 2010-04-27 Mold-Masters (2007) Limited Thermal shroud and method of making same

Also Published As

Publication number Publication date
ATE129114T1 (de) 1995-10-15
DE59300748D1 (de) 1995-11-16
DE4235989A1 (de) 1994-04-28
EP0594933B1 (fr) 1995-10-11

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