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DE19603418C1 - Electric through-flow heater for liquid medium - Google Patents

Electric through-flow heater for liquid medium

Info

Publication number
DE19603418C1
DE19603418C1 DE19603418A DE19603418A DE19603418C1 DE 19603418 C1 DE19603418 C1 DE 19603418C1 DE 19603418 A DE19603418 A DE 19603418A DE 19603418 A DE19603418 A DE 19603418A DE 19603418 C1 DE19603418 C1 DE 19603418C1
Authority
DE
Germany
Prior art keywords
aluminum profile
bore
water heater
instantaneous water
flow tube
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
DE19603418A
Other languages
German (de)
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
Priority to DE19603418A priority Critical patent/DE19603418C1/en
Application granted granted Critical
Publication of DE19603418C1 publication Critical patent/DE19603418C1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • 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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
    • H05B3/50—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins
    • 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

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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Resistance Heating (AREA)

Abstract

The through-flow heater has a flow pipe (1) enclosed by one or more axis parallel heating elements embedded in Al profiles (4,5) fitted around the outside of the flow pipe, the whole enclosed by a profiled outer sleeve (6) of CrNi steel, as in P 195 23 047. The heating elements are provided by heating coils (8), each embedded in compressed MgO (14) packed into a bore (9) in the Al profile having a flat oval cross-section.

Description

Die Erfindung betrifft einen für die Erwärmung flüssiger Me­ dien vorgesehenen elektrischen Durchlauferhitzer gemäß dem Oberbegriff des Patentanspruchs 1 , nach Hauptpatent DE 195 23 047 C2.The invention relates to a liquid for heating liquid Me the envisaged electric instantaneous water heater according to the Preamble of claim 1, according to the main patent DE 195 23 047 C2.

Der in der Beschreibung dieses Patents beschriebene Durch­ lauferhitzer ist so ausgelegt, daß die Erwärmung durch soge­ nannte Rohrheizkörper erfolgt, die in die das Durchflußrohr umgebende Aluminium-Profilteile eingebettet sind.The through described in the description of this patent rotor heater is designed so that the heating by so-called called tubular heater, which is in the flow tube surrounding aluminum profile parts are embedded.

Bei Durchlauferhitzern mit kurzem Baulänge und hoher Leistung ergeben sich hohe Oberflächenbelastungen für den Rohrheizkör­ per, insbesondere für den in letzterem befindlichen Heizleiter.For instantaneous water heaters with short lengths and high performance there are high surface loads for the tubular heater per, especially for the heating conductor located in the latter.

Wie die DE-OS 24 54 920, die DE 42 12 074 C1 und die DE 42 26 767 C1 offenbaren, wurde schon vorgeschlagen, mehrere, parallel angeordnete Rohrheizkörper in den Durchlauferhitzer einzubauen. Dies führte wohl zur Verminderung der Oberflächenbelastung, bedingte aber eine nicht unerhebliche Verteuerung des Durch­ lauferhitzers.Like DE-OS 24 54 920, DE 42 12 074 C1 and DE 42 26 767 C1 disclose, has already been proposed, several, in parallel to install arranged tubular heaters in the instantaneous water heater. This probably led to a reduction in the surface load, but caused a not inconsiderable increase in the price of through heater.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, einen Durchlauferhitzer zu schaffen, der bei relativ preiswer­ ter Herstellung eine gleichmäßige Wärmeverteilung auf große Flächen der Aluminium-Profilteile 4 und 5 und des Durchfluß­ rohres und somit die erwünschte geringere Oberflächenbela­ stung des Heizkörpers aufweist.The present invention is therefore an object of the invention to provide a continuous flow heater which, with relatively inexpensive production, has uniform heat distribution over large areas of the aluminum profile parts 4 and 5 and the flow tube, and thus has the desired lower surface load on the radiator.

Die Aufgabe wird durch die kennzeichnenden Merkmale des Pa­ tentanspruchs 1 gelöst. The task is characterized by the characteristic features of Pa claim 1 solved.  

Bei dieser erfindungsgemäßen Ausführungsart wird eine optima­ le Verteilung der Wärmeenergie über große Flächen der Alumi­ nium-Profilteile und des Durchflußrohres erreicht. Dieser neuartige Aufbau des Durchlauferhitzers bewirkt nicht zu­ letzt auch die erwünschte Reduzierung der Oberflächenbela­ stungen.In this embodiment of the invention, an optima le Distribution of thermal energy over large areas of the Alumi nium profile parts and the flow tube reached. This novel construction of the instantaneous water heater does not cause and finally the desired reduction in surface covering stungen.

Vorteilhafte Weiterbildungen des Anspruchs 1 sind den Unter­ ansprüchen zu entnehmen.Advantageous further developments of claim 1 are the sub claims.

Der Gegenstand der Erfindung ist in einem Ausführungsbeispiel in der Zeichnung dargestellt und nachfolgend beschrieben. Es zeigenThe object of the invention is in one embodiment shown in the drawing and described below. Show it

Fig. 1 den Durchlauferhitzer in der Seitenansicht, Fig. 1 the flow heater in side view,

Fig. 2 einen Querschnitt in der Ebene II : II der Fig. 1 und Fig. 2 shows a cross section in the plane II: II of Fig. 1 and

Fig. 3 einen Längsschnitt durch den Heizkörper gemäß Fig. 2. Fig. 3 is a longitudinal sectional view of the radiator of FIG. 2.

Der dargestellte Durchlauferhitzer besteht aus einem Durch­ flußrohr 1, zwei parallel zu letzterem angeordneten Heizwen­ deln 8, die unmittelbar in im Querschnitt flach-ovalen Längs­ bohrungen 9 von zwei Aluminium-Profilteilen 4 und 5 angeord­ net und in einer hochverdichteten Füllung 14 aus MgO einge­ bettet sind. Diese Bauteile 1, 4, 5 sind von einem gemeinsa­ men Rohrmantel 6 aus Stahl oder Chrom-Nickel-Stahl umgeben und miteinander verpreßt.The water heater shown consists of a flow tube 1 , two parallel to the latter Heizwen deln 8 , the holes in cross-section flat-oval longitudinal holes 9 of two aluminum profile parts 4 and 5 angeord net and embedded in a highly compressed filling 14 made of MgO are. These components 1 , 4 , 5 are surrounded by a tubular pipe jacket 6 made of steel or chromium-nickel steel and pressed together.

Jede der genannten Heizwendeln 8 ist in ihrer Längsmitte zur U-Form umgelenkt und an dieser Stelle 10 mittels eines in das eine Ende der Bohrung 9 eingepreßten Isolierstopfens 11 fixiert. Die beiden freien Enden 13 der Heizwendel sind durch einen wei­ teren die Bohrung 9 abschließenden Isolierstopfen 12 herausgeführt.Each of the heating coils 8 mentioned is deflected in its longitudinal center to the U-shape and fixed at this point 10 by means of an insulating plug 11 pressed into one end of the bore 9 . The two free ends 13 of the heating coil are led out through a white direct bore 9 closing insulating plug 12 .

Beim Einbringen der Heizleiterwendeln 8 in die zugeordneten Bohrungen 9 der Alu-Profilteile 4 und 5 werden die Bohrungen mit MgO gefüllt und eine Vorverdichtung vorgenommen. When the heating conductor coils 8 are introduced into the assigned bores 9 of the aluminum profile parts 4 and 5 , the bores are filled with MgO and a pre-compression is carried out.

Mit dem zuvor beschriebenen Aufbau des Durchlauferhitzers kann, wie die Praxis gezeigt hat, die Oberflächenbelastung um ungefähr die Hälfte gesenkt und damit auch die Außentem­ peraturen am Durchlauferhitzer entsprechend verringert wer­ den.With the design of the instantaneous water heater described above can, as practice has shown, the surface load reduced by about half and with it the outside temperature temperatures on the instantaneous water heater are reduced accordingly the.

Ergänzend wird hinzugefügt, daß an Stelle von zwei Heizlei­ tersträngen, ggf. auch mehrere solcher Stränge, in einer ge­ meinsamen Bohrung 9 angeordnet werden können.In addition, it is added that in place of two Heizlei ter strands, possibly several such strands can be arranged in a common bore 9 ge.

Claims (3)

1. Durchlauferhitzer für flüssige Medien bestehend aus einem Durchflußrohr und einem oder mehreren, achsparallel zu die­ sem Durchflußrohr angeordneten, in Aluminium-Profilteilen eingebetteten Heizkörpern, wobei die am Durchflußrohr (1) satt anliegenden Aluminium-Pro­ filteile (4 und 5) von einem gemeinsamen, profilierten Rohr­ mantel (6) aus CrNi-Stahl umschlossen sind und dieser Auf­ bau formverändernd verpreßt ist, gemäß Hauptanspruch DE 195 23 047 C2, dadurch gekennzeichnet, daß die den Heizkörper bildende Heizwendel (8) in verdich­ tetem MgO (14) eingebettet, unmittelbar in einer Bohrung (9) des Aluminium-Profilteils (4 bzw. 5) angeordnet ist.1. instantaneous water heater for liquid media consisting of a flow tube and one or more, arranged axially parallel to the sem flow tube, embedded in aluminum profile parts, the radiator on the flow tube ( 1 ) tightly fitting aluminum profile parts ( 4 and 5 ) from a common , profiled tubular jacket ( 6 ) made of CrNi steel and this is pressed onto the structure to change its shape, according to main claim DE 195 23 047 C2, characterized in that the heating coil forming the heating element ( 8 ) is embedded in compressed MgO ( 14 ), is arranged directly in a bore ( 9 ) of the aluminum profile part ( 4 or 5 ). 2. Durchlauferhitzer nach Anspruch 1, dadurch gekennzeichnet, daß die Bohrung (9) des Aluminium-Profilteils (4 bzw. 5) im Querschnitt flach-oval und die Heizleiterwendel (8) in U-Form umgelenkt ist und an dieser Umlenkstelle (10) in ei­ nem am Ende der Bohrung (9) eingesetzten Isolierstopfen (11) verankert ist.2. instantaneous water heater according to claim 1, characterized in that the bore ( 9 ) of the aluminum profile part ( 4 or 5 ) in cross-section flat-oval and the heating conductor coil ( 8 ) is deflected in a U-shape and at this deflection point ( 10 ) is anchored in an insulating plug ( 11 ) inserted at the end of the bore ( 9 ). 3. Durchlauferhitzer nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß jeweils mehrere Heizleiterwendeln (8) in einer gemein­ samen Bohrung (9) des Aluminium-Profilteils (4 bzw. 5) an­ geordnet sind.3. instantaneous water heater according to claims 1 and 2, characterized in that in each case a plurality of heating conductor coils ( 8 ) in a common bore ( 9 ) of the aluminum profile part ( 4 and 5 ) are arranged.
DE19603418A 1995-06-24 1996-01-31 Electric through-flow heater for liquid medium Expired - Lifetime DE19603418C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19603418A DE19603418C1 (en) 1995-06-24 1996-01-31 Electric through-flow heater for liquid medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1995123047 DE19523047C1 (en) 1995-06-24 1995-06-24 Electric through-flow heater for liquids
DE19603418A DE19603418C1 (en) 1995-06-24 1996-01-31 Electric through-flow heater for liquid medium

Publications (1)

Publication Number Publication Date
DE19603418C1 true DE19603418C1 (en) 1997-06-12

Family

ID=7765204

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1995123047 Expired - Lifetime DE19523047C1 (en) 1995-06-24 1995-06-24 Electric through-flow heater for liquids
DE19603418A Expired - Lifetime DE19603418C1 (en) 1995-06-24 1996-01-31 Electric through-flow heater for liquid medium

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE1995123047 Expired - Lifetime DE19523047C1 (en) 1995-06-24 1995-06-24 Electric through-flow heater for liquids

Country Status (1)

Country Link
DE (2) DE19523047C1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29910670U1 (en) 1999-06-18 1999-09-23 Türk & Hillinger GmbH, 78532 Tuttlingen Instantaneous water heater with PTC heating elements
EP2407069A1 (en) * 2010-07-12 2012-01-18 Bleckmann GmbH & Co. KG Dynamic flow-through heater
WO2013170887A1 (en) 2012-05-15 2013-11-21 Bleckmann Gmbh & Co. Kg Helical dynamic flow through heater

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2454920A1 (en) * 1974-11-20 1976-05-26 Tuerk & Hillinger Kg Flow heater for water for coffee machine - has insulated wire and water tube both enclosed by outer sleeving to form unit
DE2655788A1 (en) * 1976-12-09 1978-06-15 Eichenauer Fa Fritz Boiler for coffee making machines - has spiral heater on ceramic former between inner boiler tube and outer tube
DE4212074C1 (en) * 1992-04-10 1993-04-29 Tuerk & Hillinger Gmbh, 7200 Tuttlingen, De Electric continuous flow meter e.g. for coffee machine - has tubular heaters pressed so that walls of flow tube have recesses altering cross-section
DE4226767C1 (en) * 1992-04-10 1993-09-23 Tuerk & Hillinger Gmbh, 78532 Tuttlingen, De Mfg electric through-flow water heater - profiling flow pipe before insertion in extruded metal profile incorporating electric heating elements for improved heat transfer
DE4226325C1 (en) * 1992-08-08 1993-09-30 Tuerk & Hillinger Gmbh Electric through-flow water heater - has two parallel profiles fitted to flow pipe receiving straight sections and curved ends of heating elements respectively

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2454920A1 (en) * 1974-11-20 1976-05-26 Tuerk & Hillinger Kg Flow heater for water for coffee machine - has insulated wire and water tube both enclosed by outer sleeving to form unit
DE2655788A1 (en) * 1976-12-09 1978-06-15 Eichenauer Fa Fritz Boiler for coffee making machines - has spiral heater on ceramic former between inner boiler tube and outer tube
DE4212074C1 (en) * 1992-04-10 1993-04-29 Tuerk & Hillinger Gmbh, 7200 Tuttlingen, De Electric continuous flow meter e.g. for coffee machine - has tubular heaters pressed so that walls of flow tube have recesses altering cross-section
DE4226767C1 (en) * 1992-04-10 1993-09-23 Tuerk & Hillinger Gmbh, 78532 Tuttlingen, De Mfg electric through-flow water heater - profiling flow pipe before insertion in extruded metal profile incorporating electric heating elements for improved heat transfer
DE4226325C1 (en) * 1992-08-08 1993-09-30 Tuerk & Hillinger Gmbh Electric through-flow water heater - has two parallel profiles fitted to flow pipe receiving straight sections and curved ends of heating elements respectively

Also Published As

Publication number Publication date
DE19523047C1 (en) 1996-11-21

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