EP0075274A1 - Chauffe-eau instantané - Google Patents

Chauffe-eau instantané Download PDF

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Publication number
EP0075274A1
EP0075274A1 EP82108528A EP82108528A EP0075274A1 EP 0075274 A1 EP0075274 A1 EP 0075274A1 EP 82108528 A EP82108528 A EP 82108528A EP 82108528 A EP82108528 A EP 82108528A EP 0075274 A1 EP0075274 A1 EP 0075274A1
Authority
EP
European Patent Office
Prior art keywords
tube
tubular
flow tube
flow
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
EP82108528A
Other languages
German (de)
English (en)
Other versions
EP0075274B1 (fr
Inventor
Ingo Dr. Dipl.-Ing. Bleckmann
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.)
ELPAG AG CHUR
Original Assignee
ELPAG AG CHUR
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6142648&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0075274(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ELPAG AG CHUR filed Critical ELPAG AG CHUR
Priority to AT82108528T priority Critical patent/ATE12308T1/de
Publication of EP0075274A1 publication Critical patent/EP0075274A1/fr
Application granted granted Critical
Publication of EP0075274B1 publication Critical patent/EP0075274B1/fr
Expired 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
    • F24H1/101—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 using electric energy supply
    • F24H1/102—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 using electric energy supply with resistance
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4285—Water-heater arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating arrangements

Definitions

  • the dishwashing liquid or washing liquor is heated in a collecting container with the help of heating elements present in this collecting container.
  • the entire volume of the rinsing or washing liquor present in the collecting container is heated, for which purpose a relatively high energy requirement is necessary, although often smaller amounts of lye than are present in the collecting container during the respective heating process would suffice for the washing process to be carried out.
  • the object of the invention is to provide a heating device for dishwashers and washing machines, with which energy savings are achieved compared to previously known heating devices, particularly when small volumes of liquid have to be heated.
  • the continuous-flow heater is advantageously designed such that it can be attached or used directly on the hose for the washing or washing liquid present in the dishwasher or washing machine, which is to be introduced into the washing or washing liquor collecting container. This can be accomplished in that the flow tube of the flow heater is matched to the diameter of the hose at both connection ends. This is about 20-22 mm in a dishwasher.
  • the length of the tubular heater, which protrudes into the flow pipe, is depending on the required Dimensioned heating power. There may also be several tubular heaters as heating devices in the flow tube. In this way, energy-saving rapid heating of the rinsing or washing liquor required for the rinsing or washing process can be achieved.
  • the invention is particularly advantageous when small amounts of lye are to be heated.
  • dry-running protection e.g. B. in the form of a bimetallic switch which is actuated on the outside of the flow tube and depending on the temperature of the flow tube.
  • the bimetal switch is open, so that the power supply to the heater of the flow heater is switched off with certainty.
  • the flow pipe and the casing pipe of the tubular heating element or the tubular heating element are made of chromium-nickel steel, the casing pipe of the tubular heating element being more noble than the flow pipe.
  • a secure and tight attachment of the tubular heating element in the flow tube can be achieved by soldering the tubular casing of the tubular heating element to the flow tube, the tubular casing of the tubular heating element being inserted into bores in the flow tube.
  • the connection ends or terminals of the tubular heater or the tubular heater protrude from the flow pipe, so that the connection of the tubular heater to an electrical power supply is easily possible.
  • the continuous-flow heater has a continuous tube 1 with a curved part 12.
  • the curved part 12 of the continuous tube 1 On the outer curvature of the curved part 12 of the continuous tube 1, holes are provided through which two tubular heating elements 2, 3 are inserted and at these points by soldering 18 , 19, 20, 21 are passed tightly through the bores and are fastened in these bores.
  • the tubular heater 2 and 3 are U-shaped or hairpin-shaped and the majority of the parallel legs of the tubular heater extend into the interior of the flow tube 1.
  • power supply cables can be used can be connected in a simple manner for the energy supply of the tubular heater.
  • the individual legs of the tubular heating elements 2 and 3 have an angular distance of 90 ° from one another.
  • the diameter of the flow tube 1 is adapted to the diameter of hose sections 4, 5 and is directly attached to these hose sections.
  • the hose formed by the hose sections 4 and 5 is used to feed the rinsing or washing liquor into the washing room or washing space of the dishwasher or washing machine.
  • the outer diameter of the flow tube 1 at its respective connection ends 6 and 7 is adapted to the inner diameter of the hose sections 4 and 5. The hose sections are pushed over the connection ends 6 and 7 and fastened with the aid of, for example, clamps 22, 23.
  • bimetal switch On the outside of the flow tube 1 there is a bimetal switch which, in the open state, interrupts the power supply to the tubular heaters 2 and 3. This bimetal switch is open when no liquid to be heated flows through the flow tube 1. In this way, dry-running protection of the instantaneous water heater is achieved.
  • the diameter for the hose that transports the washing or washing liquor to the collecting area or washing area is approximately 20-22 mm. It is of course also possible to adapt only the connection ends 6 and 7 of the flow pipe to this diameter and to equip the part of the flow pipe 1 in which the tubular heating elements 2, 3 are arranged with a larger diameter, so that there is sufficient space for the arrangement of the Tubular heating element within the flow tube 1.
  • the length of the leg pieces of the tube heating element 2 and 3 located in the flow tube 1 depends on the heating power required.
  • tubular heating elements 2 and 3 shows a further exemplary embodiment in which a simple design of the tubular heating elements 2 and 3 is made possible.
  • tubular heating elements 2 and 3 which run in a straight line can be used, which have bores in the outer curvatures of curved parts 12 and 13 of the flow tube 1 inserted and sealed and secured in these holes by soldering 18, 19, 20, 21.
  • these tubular heating elements can also be connected to the electrical power supply at the projecting connection ends 8, 9 and 10, 11.
  • the straightforward design of tubular heating elements 2 and 3 is made possible by the fact that the flow tube has two curved parts 12 and 13.
  • the length of the straight middle pipe section 15 of the flow tube 1 is dimensioned, and the number and the length of the flow heaters 2 and 3 located within the flow tube are determined. e.g. B. four instantaneous water heaters can be provided.
  • the connection of the hose pieces 4 and 5 to the connection ends 6 and 7 of the flow tube is carried out in the same manner as in the embodiment of FIGS. 1 and 2.
  • a bimetal switch 17 is also provided as dry-running protection with the same function as in the first embodiment.
  • the invention thus provides a continuous flow heater for a dishwasher or washing machine, comprising a flow tube 1 having at least one curved part 12, in the interior of which tubular heating elements 2, 3 are arranged, the connection ends 8, 9, 10, 11 through the jacket of the flow pipe 1 protrude outwards, the seal between the casing pipe 16 of the tubular heater 2, 3 and the wall of the flow pipe 1 being achieved by soldering 18, 19, 20, 21.
  • a collecting space for the washing or rinsing liquor as is present in conventional washing machines and dishwashers, can advantageously be saved.
  • a variant of the instantaneous water heater consists in that the continuous tube is circular for most or all of its length. It is then a likewise tubular tubular heater, the two ends of which are straight, threaded through one of the openings of the flow tube until the straight end of the tube heater encounters an opening provided in the jacket of the flow tube. The other end of the tubular heater is then passed into a corresponding opening at the other end of the flow tube.
  • a concentric arrangement of the tubular heater in the circular flow tube can be achieved.
  • the ends of the tubular tubular heater can also be bent perpendicular to the central axis thereof and then e.g. be led downwards out of the flow tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Textile Engineering (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Water Treatment By Sorption (AREA)
  • Resistance Heating (AREA)
  • Treatment Of Fiber Materials (AREA)
EP82108528A 1981-09-25 1982-09-16 Chauffe-eau instantané Expired EP0075274B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82108528T ATE12308T1 (de) 1981-09-25 1982-09-16 Durchlauferhitzer.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3138293 1981-09-25
DE19813138293 DE3138293A1 (de) 1981-09-25 1981-09-25 Durchlauferhitzer

Publications (2)

Publication Number Publication Date
EP0075274A1 true EP0075274A1 (fr) 1983-03-30
EP0075274B1 EP0075274B1 (fr) 1985-03-20

Family

ID=6142648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82108528A Expired EP0075274B1 (fr) 1981-09-25 1982-09-16 Chauffe-eau instantané

Country Status (3)

Country Link
EP (1) EP0075274B1 (fr)
AT (1) ATE12308T1 (fr)
DE (2) DE3138293A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412390A1 (de) * 1984-04-03 1985-10-10 Fritz Eichenauer GmbH & Co KG, 6744 Kandel Durchlauferhitzer
GB2158927A (en) * 1984-04-24 1985-11-20 Imi Santon Ltd Electric flow heaters
DE4219643A1 (de) * 1992-06-16 1993-12-23 Kulmbacher Klimageraete Anordnung und Verfahren zur Montage eines elektrischen Durchlauferhitzers
GB2270370A (en) * 1992-09-07 1994-03-09 Caradon Mira Ltd Instantaneous electric water heater
US5396574A (en) * 1992-03-26 1995-03-07 Process Technology, Inc. Tubular high efficiency, non-contaminating fluid heater
EP1029501A1 (fr) * 1999-02-15 2000-08-23 CANDY S.p.A. Machine à laver la vaisselle à chauffage radiant
EP2443982A3 (fr) * 2012-01-27 2012-08-22 V-Zug AG Appareil ménager doté d'un chauffe-eau instantané
IT201800003914A1 (it) * 2018-03-26 2019-09-26 Irca Spa Dispositivo di riscaldamento di fluido per elettrodomestico

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19915110A1 (de) * 1999-04-01 2000-10-05 Aweco Appliance Sys Gmbh & Co Geschirrspülmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1556294A (fr) * 1967-12-12 1969-02-07
DE2440426A1 (de) * 1974-08-23 1976-03-04 Czepek & Co Elektrischer durchlauferhitzer
DE2455326A1 (de) * 1974-11-22 1976-05-26 Licentia Gmbh Elektrischer durchlauferhitzer fuer haushalts-kaffeemaschinen
FR2331232A1 (fr) * 1975-11-07 1977-06-03 Foa Michel Generateur electrique pour le chauffage intantane de liquide corrosif ou non

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3130737A (en) * 1962-10-09 1964-04-28 Gen Electric Automatic dishwashing appliance

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1556294A (fr) * 1967-12-12 1969-02-07
DE2440426A1 (de) * 1974-08-23 1976-03-04 Czepek & Co Elektrischer durchlauferhitzer
DE2455326A1 (de) * 1974-11-22 1976-05-26 Licentia Gmbh Elektrischer durchlauferhitzer fuer haushalts-kaffeemaschinen
FR2331232A1 (fr) * 1975-11-07 1977-06-03 Foa Michel Generateur electrique pour le chauffage intantane de liquide corrosif ou non

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412390A1 (de) * 1984-04-03 1985-10-10 Fritz Eichenauer GmbH & Co KG, 6744 Kandel Durchlauferhitzer
GB2158927A (en) * 1984-04-24 1985-11-20 Imi Santon Ltd Electric flow heaters
US5396574A (en) * 1992-03-26 1995-03-07 Process Technology, Inc. Tubular high efficiency, non-contaminating fluid heater
DE4219643A1 (de) * 1992-06-16 1993-12-23 Kulmbacher Klimageraete Anordnung und Verfahren zur Montage eines elektrischen Durchlauferhitzers
GB2270370A (en) * 1992-09-07 1994-03-09 Caradon Mira Ltd Instantaneous electric water heater
GB2270370B (en) * 1992-09-07 1996-06-12 Caradon Mira Ltd Heat exchanger
EP1029501A1 (fr) * 1999-02-15 2000-08-23 CANDY S.p.A. Machine à laver la vaisselle à chauffage radiant
EP2443982A3 (fr) * 2012-01-27 2012-08-22 V-Zug AG Appareil ménager doté d'un chauffe-eau instantané
IT201800003914A1 (it) * 2018-03-26 2019-09-26 Irca Spa Dispositivo di riscaldamento di fluido per elettrodomestico

Also Published As

Publication number Publication date
DE3262687D1 (en) 1985-04-25
EP0075274B1 (fr) 1985-03-20
DE3138293A1 (de) 1983-07-14
ATE12308T1 (de) 1985-04-15

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