EP0021106B1 - Durchlauferhitzer - Google Patents

Durchlauferhitzer Download PDF

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Publication number
EP0021106B1
EP0021106B1 EP80103006A EP80103006A EP0021106B1 EP 0021106 B1 EP0021106 B1 EP 0021106B1 EP 80103006 A EP80103006 A EP 80103006A EP 80103006 A EP80103006 A EP 80103006A EP 0021106 B1 EP0021106 B1 EP 0021106B1
Authority
EP
European Patent Office
Prior art keywords
flow
tubular jacket
channels
section
cross
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
Application number
EP80103006A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0021106A2 (de
EP0021106A3 (en
Inventor
Nikolaus Dipl.-Phys. Neimanns
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT80103006T priority Critical patent/ATE1557T1/de
Publication of EP0021106A2 publication Critical patent/EP0021106A2/de
Publication of EP0021106A3 publication Critical patent/EP0021106A3/de
Application granted granted Critical
Publication of EP0021106B1 publication Critical patent/EP0021106B1/de
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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/14—Details thereof
    • F23K5/20—Preheating devices

Definitions

  • the invention relates to a water heater according to the preamble of claim 1.
  • a continuous-flow heater of the type mentioned in the preamble of claim 1 has already been proposed.
  • the channel tracks here are the legs of a U-shaped channel.
  • This design is particularly suitable for instantaneous water heaters of coffee machines, where, depending on the construction, it is considered advantageous to have the ends of the channel on the same side.
  • the known instantaneous water heater would be less suitable as a preheater for heating oil.
  • instantaneous heaters for preheating heating oil it is often desirable to allow the flow of the heating oil to run as far as possible without changing its direction.
  • there is a particular requirement to heat the heating oil from the unaffected flow temperature to about 60 ° C. in the nozzle area of the burner within the fan lead time of an oil burner.
  • the fan lead time is approximately 15 seconds.
  • the invention has for its object to design the water heater of the type mentioned in the preamble of claim 1 so that it is suitable for heating heating oil.
  • the design according to the invention has the advantage that the heating oil directly wets the cladding tube surrounding the heating elements and their inserts, so that there is little resistance to the heat flow from the heating elements to the heating oil, since the mass of the components in between is very low.
  • Another advantage is that the instantaneous value of the volume of the oil column located in each channel path is very low during operation of the instantaneous water heater. The oil columns located in the channel tracks are therefore low in mass, which has a favorable effect on the heating-up time.
  • the rest of the design is also very low-mass due to the formation of the core, which favors short heating times.
  • 1 denotes a heating element made of cold-conducting material. In a manner not shown, several heating elements 1 are located one behind the other.
  • the heating elements 1 together with the power supply electrodes 2 covering them on both sides and an electrical insulation 3 covering the supply electrodes 2 are packed in a thin-walled cladding tube.
  • the cladding tube is designated 4 and pressed flat against the electrical insulation 3.
  • the cladding tube 4 lies between two carrier parts 7a, 7b.
  • Each of the carrier parts 7a, 7b has three channel tracks 8 which run parallel to the cladding tube 4.
  • the poorly heat-conducting carrier parts 7a, 7b are arranged in an outer tube 9 holding them in the determination position.
  • Sections of the cladding tube 4 each form a wall of the channel tracks 8.
  • the channel tracks 8 go in a manner not shown in front of and behind the cladding tube 4 into a single flow cross section.
  • a collecting space delimited by the outer tube 9 can be arranged in front of and behind the cladding tube 4, into which an inflow or outflow channel opens centrally.
  • the channel tracks 8 have a cross section for a thin, low-mass flow of heating oil, that is, they are very flat and small in cross section, so that the heating oil flowing through them can be heated quickly.
  • the rapid heating is favored in that the heating oil wets the cladding tube 4.
  • the channel tracks 8 according to FIG. 1 are arcuate in cross section.
  • a single channel track 8a which is approximately rectangular in cross section can also be provided, as shown in FIG. 3.
  • the cladding tube is round and designated by 12. Between the electrical insulation 3 and the cladding tube 12, a circular section-shaped, good heat-conducting intermediate piece 13 is arranged in each case to fill up the intermediate space.
  • a round carrier 14 is provided, which is surrounded by an outer tube denoted by 15 and fills the space between the outer tube 15 and the cladding tube 12.
  • the outer tube 15 can consist of heat-insulating material. If thermal insulation is not desired, the outer tube 15 can be omitted.
  • sections of the cladding tube 12 each form a wall of the channel tracks designated 16 here. These channel tracks 16 are on
  • the circumference of the cladding tube 12 is evenly distributed and, as described in the exemplary embodiment according to FIGS. 1 and 3, merges in a manner not shown in front of and behind the cladding tube 12 into a single flow cross section. They also have a cross-section for a thin, low-mass fuel oil flow, which means that they are also very flat and small in cross-section.
  • the cross section of the channel tracks 16 is approximately circular arc shaped according to FIG. 2. However, it can also be approximately rectangular according to FIG. 4.
  • the f-channel tracks are designated 16a there.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Resistance Heating (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Water Treatment By Sorption (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
EP80103006A 1979-06-12 1980-05-29 Durchlauferhitzer Expired EP0021106B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80103006T ATE1557T1 (de) 1979-06-12 1980-05-29 Durchlauferhitzer.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7916927U 1979-06-12
DE19797916927U DE7916927U1 (de) 1979-06-12 1979-06-12 Durchlauferhitzer

Publications (3)

Publication Number Publication Date
EP0021106A2 EP0021106A2 (de) 1981-01-07
EP0021106A3 EP0021106A3 (en) 1981-02-04
EP0021106B1 true EP0021106B1 (de) 1982-09-15

Family

ID=6704831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80103006A Expired EP0021106B1 (de) 1979-06-12 1980-05-29 Durchlauferhitzer

Country Status (4)

Country Link
EP (1) EP0021106B1 (da)
AT (1) ATE1557T1 (da)
DE (1) DE7916927U1 (da)
DK (1) DK248580A (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4465922A (en) * 1982-08-20 1984-08-14 Nordson Corporation Electric heater for heating high solids fluid coating materials
DE3374537D1 (en) * 1982-09-24 1987-12-23 Onofrio Rocchitelli Heating device for the glass washing fluid of motor vehicles and the like
DE3514053A1 (de) * 1985-04-18 1986-10-23 Lacrex Brevetti S.A., Orselina Vorrichtung zum vorwaermen von fluessigkeiten, insbesondere von fluessigen brenn- oder kraftstoffen
AT386892B (de) * 1985-09-11 1988-10-25 Singerewitsch Boris Elektrisch beheizter durchlauferhitzer
DE3936933A1 (de) * 1989-11-06 1991-05-08 Mueller Hermann Frank Vorrichtung zum erwaermen von stroemenden fluessigen oder gasfoermigen medien
FR2770621A1 (fr) * 1997-11-05 1999-05-07 Alain Sebban Appareil economiseur de fuel et reducteur de gaz polluants
FR2796134A1 (fr) * 1999-07-09 2001-01-12 Alain Sebban Dispositif de prechauffage de fioul comportant un circuit echauffe dans lequel circule le fioul

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH510848A (de) * 1970-04-30 1971-07-31 Koenig Helmut Heizölvorwärmegerät
FR2360044A1 (fr) * 1976-07-29 1978-02-24 Fonderie Soc Gen De Procede et dispositif pour la pulverisation mecanique des combustibles liquides a faible viscosite
DE2840242C2 (de) * 1978-09-15 1984-08-23 Siemens AG, 1000 Berlin und 8000 München Heizeinrichtung zur Vorwärmung von Heizöl

Also Published As

Publication number Publication date
EP0021106A2 (de) 1981-01-07
ATE1557T1 (de) 1982-09-15
DK248580A (da) 1980-12-13
EP0021106A3 (en) 1981-02-04
DE7916927U1 (de) 1979-09-13

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