EP0418159A1 - Rohrheizkörper unter anderem für Naturwasser, insbesondere Rohrheizkörper mit einer durch das Heizelement durchdrungenen Wandung - Google Patents

Rohrheizkörper unter anderem für Naturwasser, insbesondere Rohrheizkörper mit einer durch das Heizelement durchdrungenen Wandung Download PDF

Info

Publication number
EP0418159A1
EP0418159A1 EP90402525A EP90402525A EP0418159A1 EP 0418159 A1 EP0418159 A1 EP 0418159A1 EP 90402525 A EP90402525 A EP 90402525A EP 90402525 A EP90402525 A EP 90402525A EP 0418159 A1 EP0418159 A1 EP 0418159A1
Authority
EP
European Patent Office
Prior art keywords
immersion heater
flange
heating
heating element
heater according
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.)
Withdrawn
Application number
EP90402525A
Other languages
English (en)
French (fr)
Inventor
Guy Joze
Florence Cantin Fayet
Bernard Gautier
Gilles Bidon
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.)
Vulcanic
Original Assignee
Vulcanic
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 Vulcanic filed Critical Vulcanic
Publication of EP0418159A1 publication Critical patent/EP0418159A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric heating means
    • 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
    • H05B3/02—Details
    • H05B3/04—Waterproof or air-tight seals for heaters
    • 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

  • Current immersion heaters generally consist of one or more heating elements brazed on a bronze flange or welded on a stainless steel flange. This flange can be threaded to be screwed onto the wall of the enclosure to be heated with the interposition of a flat seal, or can be stamped in which case the seal with the wall is achieved using an O-ring.
  • the heating element is generally in the form of a solenoid embedded in an insulator, the whole being placed in a tube made of nickel-plated copper or even stainless steel.
  • lime deposits can cause overheating and suddenly accelerate corrosion and even possibly melt the heating element.
  • the present invention aims to overcome these drawbacks.
  • the subject of the invention is an immersion heater, in particular for heating natural waters, comprising a mounting flange traversed by at least one heating element, characterized in that it comprises a cable gland mounted on the flange to seal between the flange and the heating element.
  • Each heating element is therefore mounted via a cable gland, which avoids the problems of soldering and soldering which lead to metallic heterogeneity. or structure, which consequently improves the resistance to corrosion.
  • the cable gland is preferably crimped on the flange.
  • the seal between the flange and the wall of the enclosure on which the immersion heater is mounted is advantageously produced using a rib formed at the periphery of the flange to cooperate with a flat seal disposed between the flange and the wall of the enclosure.
  • three hairpin heating elements are provided, each end of which passes through the flange through a cable gland and is connected to a connector disposed outside the flange.
  • the connector may include twelve terminals arranged substantially in a circle, the first, seventh and ninth terminals being isolated, the second terminal being connected to the twelfth, the third terminal being connected to the fifth and to the eleventh, the fourth terminal being connected to the sixth, and the eighth terminal being connected to the tenth.
  • Such an arrangement allows all possible connections for the heating elements and in particular a mounting either in a star or in a triangle.
  • the connector may in particular be in the form of a plate, the connection between the third, fifth and eleventh terminals being made on one side of the plate, and the connections between the second and twelfth, fourth and sixth, and eighth and tenth terminals respectively being made on the other side of the plate.
  • the terminals may consist of holes passing through the plate, these holes being, before connection of the heating elements, closed by a plug capable of being perforated so as to reveal a possible error during commissioning.
  • thermocouple In the case where the heating wire of the heating element is wound in a helix, a thermocouple can be placed in the axis of the helix.
  • thermocouple allows a temperature detection which can have several functions, in particular a detection and a limitation of the temperature of the heating element by means of an electronic regulation, a detection of tartar, the latter causing an additional thermal resistance, so that at constant flow, there is a rise in temperature, as well as detection and regulation of the level by lack of liquid which also causes a rise in temperature.
  • thermocouple is mounted in a support tube forming a supply terminal for the heating wire of the heating element.
  • This flange 2 is made of stamped sheet metal and has a certain number of holes for the passage of the ends of the elements 1. Sockets 3 are crimped in these holes with the interposition of an O-ring seal 4.
  • the sockets 3 are internally threaded to cooperate with a plug 5 externally threaded so as to form a cable gland with an O-ring 6 capable of being crushed at the bottom of the socket 3 by the plug 5.
  • the ends of the heating elements 1 pass through the socket 3 and the plug 5 and are connected to a connector 7 which will be described in more detail below.
  • the flange 2 is mounted on the wall 8 of the enclosure to be heated, for example using screws engaged in holes 9 in the flange (FIG. 2).
  • the flange 2 further comprises a rib 10 stamped at its periphery, this rib coming to crush a flat seal 11 disposed against the wall 8 outside the enclosure.
  • the seal 11 therefore seals between the wall 8 and the flange 2, the seal 4 seals between the flange 2 and the gland, and the seal 6 seals between the gland and the heating element 1.
  • Figures 2 and 3 show two ways to mount three heating elements 1 on a flange 2 provided with six sealing cable glands.
  • FIG. 2 three identical elements 1 are mounted circularly adjacent to one another while in FIG. 3 two elements of the same dimensions are mounted parallel to each other and a third element of larger dimension is mounted perpendicular to the first two elements.
  • Figures 4 to 7 show the connector 7 formed in a circular plate 12 made of an insulating material.
  • Twelve holes 21 to 32 are drilled in circles at regular intervals around the plate 12 to form connection terminals for the ends of the heating elements 1.
  • the holes 21, 27 and 29 are isolated from the others whereas, on one side of the plate 12, three metal bars 40, 41 and 42 connect the holes 22 and 32, 24 and 26, and 28 and 30 respectively and that, on the other side of the plate 12, a bar 43 connects the terminals 23, 25 and 31.
  • plugs 44 close the holes of the various terminals, these plugs being drilled during the connection of the elements 1.
  • a triangle mounting is produced by supplying the connector to terminals 24, 28 and 32 and by connecting the three heating elements to terminals 22 and 24, 26 and 28, and 30 and 32 respectively.
  • a star assembly is carried out by supplying the connector to terminals 21, 27 and 29 and by connecting the heating elements to terminals 21 and 23, 25 and 27, and 29 and 31 respectively.
  • FIG. 8 represents an end of the heating element 1 in which the heating wire 50 is wound helically.
  • a ceramic rod 51 has two holes 52 for the passage of the two wires 53 of a thermocouple 54 formed at the end of the rod 51.
  • the rod 51 is itself engaged in a tube 55 passing through a plug 56 formed at the end of the outer tube 57 of the fant element 1, to maintain the thermocouple 54 in the axis of the element 1 and therefore of the helix formed by the wire at the desired distance from the end of element 1.
  • the tube also serves as a supply terminal for the heating wire 50.
  • the wire 50 as well as the thermocouple and its support members are embedded in an insulating powder 58.
  • thermocouple 54 makes it possible to determine the temperature inside the element 1 and consequently at the level of the wire, which makes it possible to limit the temperature of the latter to increase its service life, to limit the temperature of the 'heating element not to degrade the product to be heated, and to detect any thickness of scale or any deposit or a lack of liquid in the enclosure to be heated.
  • thermocouple 60 In the variant of FIGS. 10 and 11, insulated wires 59 are used for the thermocouple, the centering of the thermocouple 60 in the heating wire 61 being ensured using a ceramic cement 62 before filling the insulating powder.

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)
  • Resistance Heating (AREA)
EP90402525A 1989-09-13 1990-09-13 Rohrheizkörper unter anderem für Naturwasser, insbesondere Rohrheizkörper mit einer durch das Heizelement durchdrungenen Wandung Withdrawn EP0418159A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8911971A FR2651952B1 (fr) 1989-09-13 1989-09-13 Thermoplongeur notamment pour le chauffage des eaux naturelles, et plus particulierement un tel thermoplongeur comprenant un flasque de montage traverse par au moins un element chauffant.
FR8911971 1989-09-13

Publications (1)

Publication Number Publication Date
EP0418159A1 true EP0418159A1 (de) 1991-03-20

Family

ID=9385417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90402525A Withdrawn EP0418159A1 (de) 1989-09-13 1990-09-13 Rohrheizkörper unter anderem für Naturwasser, insbesondere Rohrheizkörper mit einer durch das Heizelement durchdrungenen Wandung

Country Status (3)

Country Link
EP (1) EP0418159A1 (de)
DE (1) DE418159T1 (de)
FR (1) FR2651952B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004083738A1 (de) * 2003-03-21 2004-09-30 BSH Bosch und Siemens Hausgeräte GmbH Warmwasserbereiter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852628C (de) * 1951-02-01 1952-10-16 Voigt & Haeffner Ag Mit einem Dichtungskoerper vereinter Rohrheizkoerper
US4082301A (en) * 1974-12-06 1978-04-04 Electro-Therm, Inc. Mounting grommet for an electric heating element used in appliances and the like
GB2021369A (en) * 1978-05-13 1979-11-28 Stegmeier H A heating cartridge
US4217483A (en) * 1976-10-27 1980-08-12 Electro-Therm, Inc. Terminal block for single phase or three phase wiring of an immersion heater assembly and methods of wiring
DE3333698A1 (de) * 1983-09-17 1985-04-04 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden Befestigungseinrichtung eines elektrischen rohrheizkoerpers und verfahren zu deren herstellung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852628C (de) * 1951-02-01 1952-10-16 Voigt & Haeffner Ag Mit einem Dichtungskoerper vereinter Rohrheizkoerper
US4082301A (en) * 1974-12-06 1978-04-04 Electro-Therm, Inc. Mounting grommet for an electric heating element used in appliances and the like
US4217483A (en) * 1976-10-27 1980-08-12 Electro-Therm, Inc. Terminal block for single phase or three phase wiring of an immersion heater assembly and methods of wiring
GB2021369A (en) * 1978-05-13 1979-11-28 Stegmeier H A heating cartridge
DE3333698A1 (de) * 1983-09-17 1985-04-04 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden Befestigungseinrichtung eines elektrischen rohrheizkoerpers und verfahren zu deren herstellung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004083738A1 (de) * 2003-03-21 2004-09-30 BSH Bosch und Siemens Hausgeräte GmbH Warmwasserbereiter
CN100554808C (zh) * 2003-03-21 2009-10-28 Bsh博施及西门子家用器具有限公司 热水器

Also Published As

Publication number Publication date
FR2651952B1 (fr) 1991-11-08
FR2651952A1 (fr) 1991-03-15
DE418159T1 (de) 1991-09-26

Similar Documents

Publication Publication Date Title
FR2810399A1 (fr) Dispositif de mesure de temperature pour fluide circulant dans un tube
EP2804516A1 (de) Handtuchtrocknungsstrahler mit mindestens einer handtuchstange mit eingebautem kühlkörper mit einem elektrischen heizkabel
FR2622047A1 (fr) Dispositif parafoudre comprenant au moins un element fusible
EP0246947B1 (de) Elektrischer Unterwassersteckverbinder
EP0418159A1 (de) Rohrheizkörper unter anderem für Naturwasser, insbesondere Rohrheizkörper mit einer durch das Heizelement durchdrungenen Wandung
FR2583948A1 (fr) Resistance chauffante en feuille, bobine chauffante assemblee la comprenant et procede de fabrication de cette bobine
FR2552706A1 (fr) Element chauffant electrique avec canal interne pour l'ecoulement de matiere plastique en fusion
FR2781051A1 (fr) Capteur de temperature pour plaque de cuisson d'un foyer de cuisson
EP1939144A1 (de) Verfahren und Vorrichtung zum Schutz eines elektrischen Wasserboilers gegen Kalkablagerungen
EP0949846B1 (de) Tauchheizkörper zur Benutzung in Heizkörpern von Heisswasserkreislaufheizungen
WO2023079250A1 (fr) Element chauffant pour une buse d'injection de matiere plastique et buse pourvue d'un tel element chauffant
EP2038978B1 (de) Elektrische durchführungsstruktur für ein supraleitendes element
FR2623685A1 (fr) Element chauffant electrique a tube en verre et a dispositif de securite detectant la defaillance de ce dernier
FR2661488A1 (fr) Echangeur de chaleur tridimensionnel a alimentation electrique.
EP0184491A1 (de) Wassererhitzer
FR3085428A1 (fr) Dispositif de chauffage de gaz d'echappement, notamment pour un moteur a combustion
FR2741227A1 (fr) Electrode, notamment destinee a etre utilisee dans des fours de fusion du verre
FR2652225A1 (fr) Element tubulaire de chauffage electrique et son dispositif de cintrage, et echangeur comportant un tel element.
EP2795276A2 (de) Temperatursensor
FR2470370A1 (fr) Capteur de temperature d'un fluide
EP0254637A2 (de) Vorrichtung zum Messen der ätzenden Schärfe von Rauch
FR2734348A1 (fr) Echangeur de chaleur muni d'un capteur de temperature pour vehicule automobile
FR2544516A1 (fr) Plaque chauffante pour machine reprographique
FR2876535A1 (fr) Element chauffant
FR2536218A1 (fr) Perfectionnements aux lasers a gaz

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH DE ES GB IT LI NL

TCNL Nl: translation of patent claims filed
GBC Gb: translation of claims filed (gb section 78(7)/1977)
DET De: translation of patent claims
17P Request for examination filed

Effective date: 19910906

17Q First examination report despatched

Effective date: 19930329

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19930810