DE2218796B2 - Water heater - Google Patents

Water heater

Info

Publication number
DE2218796B2
DE2218796B2 DE19722218796 DE2218796A DE2218796B2 DE 2218796 B2 DE2218796 B2 DE 2218796B2 DE 19722218796 DE19722218796 DE 19722218796 DE 2218796 A DE2218796 A DE 2218796A DE 2218796 B2 DE2218796 B2 DE 2218796B2
Authority
DE
Germany
Prior art keywords
jacket
water heater
tube
heater according
water
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.)
Ceased
Application number
DE19722218796
Other languages
German (de)
Other versions
DE2218796A1 (en
Inventor
Fritz 8225 Traunreut John
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19722218796 priority Critical patent/DE2218796B2/en
Priority to AT271773A priority patent/AT328579B/en
Priority to FR7313724A priority patent/FR2180851B1/fr
Priority to IT721173A priority patent/IT982035B/en
Priority to GB1886073A priority patent/GB1427586A/en
Publication of DE2218796A1 publication Critical patent/DE2218796A1/en
Publication of DE2218796B2 publication Critical patent/DE2218796B2/en
Ceased 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
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/54—Water boiling vessels in beverage making machines
    • A47J31/542—Continuous-flow heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/282—Methods of steam generation characterised by form of heating method in boilers heated electrically with water or steam circulating in tubes or ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0008—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/22—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means having portions engaging further tubular elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Geometry (AREA)
  • Food Science & Technology (AREA)
  • Resistance Heating (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Description

Die Erfindung bezieht sich auf einen Durchlauferhitzer mit einem das zu erhitzende Medium, z.B. Wasser, aufnehmenden Rohr, an dem ein elektrischer Rohrheizkörper entlanggeführt ist.The invention relates to a water heater with a medium to be heated, e.g. Water, receiving pipe on which an electric tubular heating element is guided.

Derartige Durchlauferhitzer finden beispielsweise bei elektrischen Kaffeemaschinen Verwendung, wobei das als elektrischer Rohrheizkörper ausgebildete Heizrohr entweder neben dem wasserführenden Rohr in einen wärmeleitenden'Träger eingelegt oder mit dem wasserführenden Rohr verlötet ist. Beide Ausführungsformen erfordern einen verhältnismäßig großen Fertigungsaufwand. Außerdem ist der Wärmeübergang vom Heizrohr zum wasserführenden Rohr in vielen Fällen unbefriedigend.Such water heaters are used, for example, in electric coffee machines, with the heating pipe designed as an electric tubular heating element either next to the water-carrying pipe is inserted into a heat-conducting carrier or soldered to the water-conducting pipe. Both embodiments require a relatively large manufacturing effort. In addition, the heat transfer from the heating pipe to the water pipe in many cases unsatisfactory.

Es ist auch bereits ein Umlauferhitzer für die Brauchwasserbereitung bekannt, der Dreifachkanäle aufweist, die aus einem einstückig gefertigten Hnhlprofi! bestehen. Die Wärmeerzeugung eriok-r bei einem derartigen Erhitzer nicht durch einen Rohrheizkörper, sondern dup:h eine außerhalb angeordnete Wännequelle.A circulation heater for domestic water preparation is already known, the triple ducts has, which are made from a one-piece Hnhlprofi! exist. The heat generation eriok-r at a heater of this type not by a tubular heating element, but by an outside one Water source.

Autgabe der Erfindung ist es. die Herstellung eines Durchlauferhitzers der eingangs beschriebenen Vl zu vereinfachen und bei einem derartigen Element einen genau definierten Wärmeübergang vom Rohrheizkörper zum wasserführenden Rohrzu schaffen.It is the purpose of the invention. the production of a water heater of the VI described above to simplify and with such an element a precisely defined heat transfer from the tubular heater to create a water-bearing pipe.

Erfindungsgcmaß wild diese Aufgabe dadurch y<_- löst, daß das das zu erhitzende Medium aufnohmende Rohr sowie der Mantel des Rohrheizkörper als einstückiges Hohlprofil ausgebildet ist. Es ist imAccording to the invention, this task is achieved by y <_- solves that the medium to be heated absorbing Tube and the jacket of the tubular heater is designed as a one-piece hollow profile. It is in

Rahmen der Erfindung auch möglich, daß der Ma;-.-tel des Rohrheizkörpers in die Wandung des wasv.-.·- führenden Rohres eingeformt ist. Der Mantel des Rohrheizkörpers kann auch von dem wasseriuhivnden Rohr mit Abstand umschlossen sein. In die^rn Fall ist der Mantel des Rohrheizkörpers durch R--dialstege mit dem wasserführenden Rohr verbund^.Within the scope of the invention also possible that the Ma; -.- tel of the tubular heating element is molded into the wall of the wasv .-. · - carrying pipe. The coat of the The tubular heater can also be enclosed at a distance from the water-cooling tube. In the ^ rn The case is the jacket of the tubular heater through R-dial webs connected to the water-carrying pipe ^.

Entsprechend den Erfordernissen der Praxis k.in-According to the requirements of the practice k.in-

nen das wasserführende Rohr und der Mantel des Rohrheizkörper verschiedenen Querschnitt aufwi;;-The water-carrying pipe and the jacket of the tubular heating element have different cross-sections ;; -

sen, wobei dieser Querschnitt von der Kreisform arweichen kann. Der Mantel des Rohrheizkörpers wird nach dem Einbringen des Heizleiters und der diesen umgebenden Isoliermasse in an sich bekannter Weise verringert.sen, whereby this cross-section may be of the circular shape. The jacket of the tubular heater is after the heating conductor and the insulating compound surrounding it have been introduced in a manner known per se decreased.

In der Zeichnung sind Ausführungsbeispiele eri'iridungsgemäß ausgebildeter Hohlprofile im Qucrschnitt dargestellt.In the drawing, exemplary embodiments are shown in accordance with the invention formed hollow profiles shown in cross section.

Das in Fig. 1 gezeigte cinstückige Hohlprofil bcsteht aus einem das zu beheizende Medium, insbesondere wasserführenden Rohrl und einem rohrförmigen Mantel 2 eines Rohrheizkörpers. Beide Rohre weisen den gleichen Querschnitt auf und sind durch einen gemeinsamen Wandteii 3 verbunden.The one-piece hollow profile shown in FIG. 1 stands from a medium to be heated, in particular a water-carrying Rohrl and a tubular Jacket 2 of a tubular heater. Both tubes have the same cross-section and are through a common wall part 3 connected.

In dem Ausführungsbeispiel nach F i g. 2 weisen das Rohr 1 und der Mantel 2 unterschiedlichen Querschnitt auf und sind durch einen Steg 4 verbunden.In the embodiment according to FIG. 2, the tube 1 and the jacket 2 have different cross-sections and are connected by a web 4.

In dem Ausführungsbeispiel nach Fig.3 sind das Rohrl und der Mantel 2 durch einen gemeinsamen Wandteil 3 verbunden und weisen sechseckigen Querschnitt auf.In the embodiment of Figure 3, these are Rohrl and the jacket 2 connected by a common wall part 3 and have hexagonal Cross-section on.

In F i g. 4 ist das Rohr 1 über einen Steg 4 mit einem ebenfalls sechseckig ausgebildeten Mantel 2 verbunden.In Fig. 4 is the tube 1 via a web 4 with a jacket 2, which is also hexagonal tied together.

In dem Ausführungsbeispiel nach Fig. 5 ist der Mantel 2 in die Wandung des wasserführenden Rohres I eingeformt.In the embodiment according to FIG. 5, the jacket 2 is in the wall of the water-carrying pipe I molded.

Bei der in F i g. 6 dargestellten Ausführungsform umgibt das wasserführende Rohrl den Mantel 2 mit Abstand, wobei das Rohrl und der Mantel 2 durch Radialstege S starr verbunden sind.In the case of the in FIG. 6, the water-bearing Rohrl surrounds the jacket 2 with the embodiment shown Distance, the Rohrl and the jacket 2 are rigidly connected by radial webs S.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (8)

Patentansprüche:Patent claims: 1. Durchlauferhitzer mit einem das zu erhitzende Medium, z.B. Wasser aufnehmenden Rohr an dem ein elektrischer Rohrheizkörper entlanggeführt ist, dadurch gekennzeichnet, daß das das zu erhitzende Medium aufnehmende Rohr (1) sowie der Mantel (2) des Rohrheizkörpers als einstückiges Hohlprofil ausgebildet ist.1. Instantaneous water heater with a medium to be heated, e.g. water Pipe along which an electric tubular heating element is guided, characterized in that, that the tube (1) receiving the medium to be heated and the jacket (2) of the tubular heating element are designed as a one-piece hollow profile is. 2. Durchlauferhitzer nach Anspruch 1, dadurch gekennzeichnet, daß das Rohr (1) und der Mantel (2) durch einen Steg (4) verbunden sind.2. Water heater according to claim 1, characterized in that the tube (1) and the Sheath (2) are connected by a web (4). 3. Durchlauferhitzer nach Anspruch 1, dadurch gekennzeichnet, daß das Rohr (1) und der Mantel (2) gemeinsame Wandteile (3) aufweisen.3. Water heater according to claim 1, characterized in that the tube (1) and the jacket (2) have common wall parts (3). 47 Durchlauferhitzer nach Anspruch 1, dadurch gekennzeichnet. daß das Rohr (1) und der Mantel (2) verschiedenen Querschnitt aufweisen.47 instantaneous water heater according to claim 1, characterized marked. that the tube (1) and the jacket (2) have different cross-sections. 5. Durchlauferhitzer nach Anspruch 1, dadurch gekennzeichnet, daß das Rohr (1) und der Mantel (2) unrunden Querschnitt aufweisen.5. Water heater according to claim 1, characterized in that the tube (1) and the jacket (2) have a non-circular cross-section. 6. Durchlauferhitzer nach Anspruch 1, dadurch gekennzeichnet, daß der Mantel (2) in die Wandung des Rohres (1) eingeformt ist.6. Water heater according to claim 1, characterized in that the jacket (2) in the wall of the tube (1) is molded. 7. Durchlauferhitzer nrch Anspruch 1. dadurch gekennzeichnet, daß der Mantel (2) von dem Rohr (1) mit Abstand umschlossen ist.7. water heater according to claim 1 characterized in that the jacket (2) is enclosed by the tube (1) at a distance. 8. Durchlauferhitzer nach den Ansprüchen ! und 7, dadurch gekennzeichnet, daß der Mantel (2) mit dem Rohr (1) durch Radialstege (5) verbunden ist.8. Water heater according to the claims! and 7, characterized in that the jacket (2) is connected to the tube (1) by radial webs (5).
DE19722218796 1972-04-18 1972-04-18 Water heater Ceased DE2218796B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19722218796 DE2218796B2 (en) 1972-04-18 1972-04-18 Water heater
AT271773A AT328579B (en) 1972-04-18 1973-03-28 FLOW HEATER
FR7313724A FR2180851B1 (en) 1972-04-18 1973-04-16
IT721173A IT982035B (en) 1972-04-18 1973-04-18 PASSAGE HEATER
GB1886073A GB1427586A (en) 1972-04-18 1973-04-18 Heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722218796 DE2218796B2 (en) 1972-04-18 1972-04-18 Water heater

Publications (2)

Publication Number Publication Date
DE2218796A1 DE2218796A1 (en) 1973-10-31
DE2218796B2 true DE2218796B2 (en) 1974-02-07

Family

ID=5842369

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722218796 Ceased DE2218796B2 (en) 1972-04-18 1972-04-18 Water heater

Country Status (5)

Country Link
AT (1) AT328579B (en)
DE (1) DE2218796B2 (en)
FR (1) FR2180851B1 (en)
GB (1) GB1427586A (en)
IT (1) IT982035B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2545483A1 (en) * 1975-10-10 1977-04-14 Bosch Siemens Hausgeraete Electric coffee machine with hot plate for coffee jug - uses hot plate which has heater element fitted by spring clips
DE2647152A1 (en) * 1976-10-19 1978-04-27 Bosch Siemens Hausgeraete Continuous water heater for coffee machine - has water pipe with eccentric aperture, and increase cross section for connection to heater pipe
DE3345823A1 (en) * 1983-12-17 1985-07-04 Fritz Eichenauer GmbH & Co KG, 6744 Kandel Method for producing a device for heating fluids, and a corresponding device
DE19831937A1 (en) * 1998-07-16 2000-01-27 Braun Gmbh Continuous water heater fabrication for use e.g. in hot drinks machine, is carried out by e.g. laser-welding of water pipe to clad heating element, fusing contacting surfaces together
EP2410813B1 (en) * 2010-07-19 2015-11-25 BSH Hausgeräte GmbH Electric heater and continuous-flow heater

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2460189C2 (en) * 1974-12-19 1985-11-14 Siemens AG, 1000 Berlin und 8000 München Instantaneous water heater of an electric coffee machine
IT7921025V0 (en) * 1979-03-08 1979-03-08 I R C A Ind Resistenze Corazza HEATING GROUP FOR FLUIDS.
BR8007709A (en) * 1980-11-26 1982-07-27 Carlos Alberto Dawes Abramo PROCESS FOR COOLING LIQUIDS AND / OR GASES
DE8408571U1 (en) * 1984-03-21 1984-06-28 Festo KG, 7300 Esslingen PNEUMATIC HOSE
DE3419365C1 (en) * 1984-05-24 1985-09-05 Melitta-Werke Bentz & Sohn, 4950 Minden Instantaneous water heater for a coffee or tea machine
GB8417774D0 (en) * 1984-07-12 1984-08-15 Telephone Cables Ltd Cable ducting
DE8536338U1 (en) * 1985-12-23 1986-03-27 Elpag Ag Chur, Chur Electric flow heater
GB2198202B (en) * 1986-11-26 1991-07-31 British Gas Plc A moulding of synthetic resin
GR1001062B (en) * 1989-09-20 1993-04-28 Dimitrios Nikolakis Instant boiling appliance for production of greek coffee and other similar beverages
DE19900701A1 (en) * 1999-01-11 2000-07-13 Vdm Evidal Gmbh Capillary suction pipe system for evaporator systems or refrigeration cycle systems
FR2792515B1 (en) 1999-04-20 2001-06-01 Seb Sa PROFILE-BASED COFFEE MAKER
DE20120611U1 (en) * 2001-12-20 2003-02-13 Fritz Eichenauer GmbH & Co. KG, 76870 Kandel Heating system for a steam generator
WO2004051168A2 (en) * 2002-12-03 2004-06-17 Rane Milind V Tube-tube heat exchangers
FR2895066B1 (en) * 2005-12-16 2008-01-25 Seb Sa DEVICE FOR HEATING WATER FOR AN ELECTRICAL APPLIANCE
ITVE20060016U1 (en) 2006-05-18 2007-11-19 Irca Spa HEATING ELEMENT.-
GB2440546A (en) * 2006-08-04 2008-02-06 Rolls Royce Plc Fluid carrying arrangement and its manufacture using a solid freeform fabrication process
GB2440547A (en) * 2006-08-05 2008-02-06 Rolls Royce Plc A fluid carrying arrangement
DE202010006739U1 (en) 2010-05-12 2010-08-19 Türk & Hillinger GmbH Heater
US9452840B2 (en) 2014-04-15 2016-09-27 The Boeing Company Monolithic part and method of forming the monolithic part
EP3903042B1 (en) * 2018-12-27 2024-07-03 Arçelik Anonim Sirketi An oven with steam cooking function

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415243A (en) * 1943-10-20 1947-02-04 Bohn Aluminium & Brass Corp Refrigeration apparatus and method of making same
US2521040A (en) * 1945-06-11 1950-09-05 Lee W Casetta Condenser for refrigerators
US2687626A (en) * 1952-02-16 1954-08-31 Bohn Aluminium & Brass Corp Heat exchanger having open-sided bore superimposed on closed bore
US3285334A (en) * 1961-12-11 1966-11-15 Peerless Of America Integral dual-passage heat exchange tubing with reverse bends
FR1409447A (en) * 1964-07-17 1965-08-27 & De Construction De Moteurs D Improvements to heat exchange elements
US3343596A (en) * 1965-06-30 1967-09-26 Peerless Of America Heat exchanger and defroster therefor
US3617699A (en) * 1969-03-10 1971-11-02 Donald F Othmer A system for electrically heating a fluid being transported in a pipe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2545483A1 (en) * 1975-10-10 1977-04-14 Bosch Siemens Hausgeraete Electric coffee machine with hot plate for coffee jug - uses hot plate which has heater element fitted by spring clips
DE2647152A1 (en) * 1976-10-19 1978-04-27 Bosch Siemens Hausgeraete Continuous water heater for coffee machine - has water pipe with eccentric aperture, and increase cross section for connection to heater pipe
DE3345823A1 (en) * 1983-12-17 1985-07-04 Fritz Eichenauer GmbH & Co KG, 6744 Kandel Method for producing a device for heating fluids, and a corresponding device
DE19831937A1 (en) * 1998-07-16 2000-01-27 Braun Gmbh Continuous water heater fabrication for use e.g. in hot drinks machine, is carried out by e.g. laser-welding of water pipe to clad heating element, fusing contacting surfaces together
EP2410813B1 (en) * 2010-07-19 2015-11-25 BSH Hausgeräte GmbH Electric heater and continuous-flow heater

Also Published As

Publication number Publication date
FR2180851A1 (en) 1973-11-30
IT982035B (en) 1974-10-21
FR2180851B1 (en) 1977-04-29
DE2218796A1 (en) 1973-10-31
GB1427586A (en) 1976-03-10
AT328579B (en) 1976-03-25

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