EP2962051B1 - Haltevorrichtung für heizelement und heizer - Google Patents

Haltevorrichtung für heizelement und heizer Download PDF

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Publication number
EP2962051B1
EP2962051B1 EP14714913.2A EP14714913A EP2962051B1 EP 2962051 B1 EP2962051 B1 EP 2962051B1 EP 14714913 A EP14714913 A EP 14714913A EP 2962051 B1 EP2962051 B1 EP 2962051B1
Authority
EP
European Patent Office
Prior art keywords
holding
holding device
heating element
holding element
elements
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.)
Active
Application number
EP14714913.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2962051A1 (de
Inventor
Bernd Kleinpass
Peter Mallaun
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.)
Plansee SE
Original Assignee
Plansee SE
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 Plansee SE filed Critical Plansee SE
Priority to PL14714913T priority Critical patent/PL2962051T3/pl
Publication of EP2962051A1 publication Critical patent/EP2962051A1/de
Application granted granted Critical
Publication of EP2962051B1 publication Critical patent/EP2962051B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
    • F27B5/06—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B5/14—Arrangements of heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/02—Ohmic resistance heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/08—Heating by electric discharge, e.g. arc discharge
    • F27D11/10—Disposition of electrodes
    • 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
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • 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
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H05B3/08—Heater elements structurally combined with coupling elements or holders having electric connections specially adapted for high temperatures
    • 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
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • 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
    • H05B3/62—Heating elements specially adapted for furnaces
    • H05B3/66—Supports or mountings for heaters on or in the wall or roof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D2001/0079—Means to assemble at least two parts of a furnace or of any device or accessory associated to its use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system
    • F27D2099/0008—Resistor heating
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/016—Heaters using particular connecting means

Definitions

  • the invention relates to a holding device for a heating element and a heater with at least one such holding device, in particular a tungsten heater.
  • CN 2896172 Y discloses a heater for a high temperature furnace for sintering tungsten or molybdenum.
  • the heater is cylindrical and has a plurality of heating elements in the form of hanging nets.
  • the nets are each secured by means of a holding device in the oven.
  • the holding device is made of a folded sheet metal, which engages around the upper end of the networks in Y-shape. Between the ends of the folded sheet metal another sheet is arranged, which is riveted to the ends of the folded sheet metal.
  • document FR2826541 discloses a holding device for a heating element known from the prior art. It is an object of the invention to provide a holding device for a heating element and a heater with such a holding device, which is inexpensive to produce and stable in use.
  • a holding device for a heating element for example for use in a tungsten heater.
  • the holding device is made of a refractory metal or an alloy based on refractory metal, so that it withstands high temperatures or remains dimensionally stable even at high temperatures. Reference is made to metals or alloys having a refractory metal or a refractory metal alloy which has a melting point greater than or equal to 1772 ° C (equivalent to the melting point of platinum).
  • the holding device has at least two holding elements, which are arranged perpendicular or substantially perpendicular to each other.
  • a heating element in the form of a network or braid can be fastened or held on a holding element, and by means of the further holding element, the holding device (with the heating element) in a furnace chamber fixable. That is, by means of the holding device, a heating element can be held or fastened in a furnace chamber.
  • the two holding elements are connected to one another, one of the two holding elements having an opening or a (through) hole, in which at least one part of the other holding element is arranged or inserted.
  • the opening (four) is angular or round, depending on the configuration of the inserted into the opening part of the holding element.
  • a first holding element is arranged at least partially in an opening of a second holding element, wherein the first holding element is connected to the second holding element by means of deformation. That is, the two holding elements are connected together at a temperature well below the recrystallization temperature.
  • the first holding element is inserted into the opening of the second holding element, so that it protrudes on the opposite side of the second holding element.
  • the protruding part is cold-formed, for example by tumbling, so that the two holding elements are securely connected to one another.
  • microcracks and microstructural brittleness can occur at the site of the weld.
  • first and the second holding element are not welded together.
  • the holding device is current-conducting, so that it can additionally be used as a power connection for a heating element which can be fastened to the holding device.
  • At least one of the holding elements is integrally formed or made of a solid material, i. not from a sheet.
  • at least one retaining element is designed as a rod, square or polygonal profile.
  • the mechanical stability of the individual holding elements and thus of the holding device is increased.
  • the manufacture of the holding elements is simplified because they are simple and fast, e.g. can be produced by cutting to length.
  • both holding elements are formed from a solid material.
  • the holding device with the first holding element in a furnace chamber can be fastened, e.g. by means of screws or a clamping connection between the first holding element and the furnace chamber. That For example, if a heating element is attached to the holding device (or the second holding element) in a suspended manner, such as e.g. a tungsten mesh or sheet, then the entire weight of the holding device and the heating element depends on the first holding element. Alternatively, a heating element - e.g. in the form of a sheet - standing arranged on the holding device, wherein the weight of the holding device and the heating element also acts on the first holding element.
  • a heating element e.g. in the form of a sheet - standing arranged on the holding device, wherein the weight of the holding device and the heating element also acts on the first holding element.
  • the holding device has a third holding element which is fastened to the second holding element, ie when using the holding device, a heating element such as a tungsten mesh is attached to the third holding element, for example, welded to the third holding element.
  • a heating element such as a tungsten mesh
  • the first and second holding element can be produced independently of the dimensions of the heating element used. That is, according to the 'modular principle' can be made in a manufacturing step, a plurality of identical units consisting of the first and second holding element, which are then adapted by attaching the appropriately dimensioned or designed third holding element to the appropriate application or to the corresponding heating element can.
  • the third holding element can be adapted to a cylindrical or angular oven space or heater, ie the third holding element can be bent or straight or have any other desired shape, which is adapted to the particular application.
  • the second and third retaining element are connected to each other by means of at least one positive and / or non-positive connection means, for example by means of rivets or screws.
  • the second and third retaining element are not materially connected to each other, for example, not welded together. That through a connection e.g. By means of riveting, the above-described disadvantages of welding are avoided.
  • the holding device or the first, second and third holding element is formed from tungsten or a tungsten-based alloy.
  • a tungsten-based alloy is an alloy containing ⁇ 50 wt% tungsten.
  • the tungsten-based alloy has a tungsten content of ⁇ 90% by weight.
  • a heater is provided, for example a tungsten heater, with at least one holding device as described above and below, wherein the at least one holding device is electrically conductively connected to at least one heating element.
  • Fig. 1a-b show perspective views of a holding device 2 according to a preferred embodiment.
  • the holding device 2 is formed from a first, second and third holding element 4, 6, 8, which are connected to each other and made of a refractory metal or on a refractory metal-based alloy, for example tungsten or molybdenum.
  • the holding device 2 is electrically conductive and is used to power one (or more) heating elements 18, which can be attached to the holding device 2 (hanging).
  • This in Fig. 1a sketched illustrated heating element 18 is formed for example of a tungsten mesh, a sheet or a plurality of (vertical) wires.
  • the holding device 2 When using the holding device 2, the holding device in a furnace chamber (not shown) attached by attaching the first holding member 4 and the support, for example by means of a clamp connection or by means of screws in the furnace chamber. That After mounting, the holding device 2 or the heating element 18 is arranged hanging (on the first holding element 4) in the oven chamber. On the third holding element 8, the heating element 18 is fastened, for example, by means of a clamping connection and / or welded connection in order to ensure good electrical contact.
  • Fig. 2 shows an exploded view of the holding device 2 of Fig. 1 to illustrate the connection of the three holding elements 4, 6, 8.
  • the holding elements 4, 6, 8 are made of solid material or are not produced by bending of sheets.
  • the first holding element 4 has at one end a pin 12 which is inserted into a correspondingly formed opening 10 of the second holding element 6. Subsequently, the pin 12 by means of cold forming, such as tumbling, reshaped, so that the first and second holding element 4, 6 are securely connected to each other.
  • the third holding element 8 is connected to the second holding element 6 by means of four rivets 16a-d.
  • two bevels 14a-b can optionally be arranged, which are adjacent to the second holding element 6 after being plugged together.
  • the chamfers 14a-b may receive a weld to further secure the connection between the two retaining elements 4, 6, where the location of the weld is outside or substantially outside the location of mechanical stress when using the fixture. That the weld or seams are sufficiently spaced from the connection (opening 10 / pin 12) between the first and second retaining elements so that the welding has no negative influence on the connection.
  • the exemplary holding device 2 is designed for use in a cylindrical oven space, in particular three of the illustrated holding devices 2 are required in order to heat by means of the corresponding heating elements 18 a cylindrical oven space.
  • at least the third holding element 8 or the Schuelement made of a bent sheet metal, whose curvature is adapted to the dimensions of the furnace chamber.
  • a furnace chamber can have any cross-section, for example rectangular, oval, etc.
  • the third retaining element 8 can be adapted to the different dimensions of the furnace chamber or of the heating elements. That is to say, in the production of the holding device, units consisting of the first and second holding element can first be produced, for example, in stock. Only with the attachment of the correspondingly dimensioned third holding element, the holding device is adapted to the corresponding dimensions of a furnace chamber or a heating element, ie, the third holding element has, for example, a certain curvature and a certain length. Since the third holding element 8 can be connected to the second holding element 6 in a simple and rapid manner by means of rivets 16a-d, holding devices 2 can be adapted quickly and easily to the respective application in this way according to the 'modular principle'.
  • the holding device is made only of a first and second holding element, wherein the second holding element is formed or has corresponding dimensions, to attach a heating element 18 thereto.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Furnace Details (AREA)
EP14714913.2A 2013-03-01 2014-02-27 Haltevorrichtung für heizelement und heizer Active EP2962051B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14714913T PL2962051T3 (pl) 2013-03-01 2014-02-27 Urządzenie mocujące dla elementu grzewczego oraz grzejnik

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATGM70/2013U AT13671U1 (de) 2013-03-01 2013-03-01 Haltevorrichtung für Heizelement und Heizer
PCT/AT2014/000039 WO2014131069A1 (de) 2013-03-01 2014-02-27 Haltevorrichtung für heizelement und heizer

Publications (2)

Publication Number Publication Date
EP2962051A1 EP2962051A1 (de) 2016-01-06
EP2962051B1 true EP2962051B1 (de) 2018-01-17

Family

ID=50885092

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14714913.2A Active EP2962051B1 (de) 2013-03-01 2014-02-27 Haltevorrichtung für heizelement und heizer

Country Status (8)

Country Link
US (1) US10107552B2 (ja)
EP (1) EP2962051B1 (ja)
JP (1) JP2016515283A (ja)
CN (1) CN105008838B (ja)
AT (1) AT13671U1 (ja)
PL (1) PL2962051T3 (ja)
TW (1) TWI652441B (ja)
WO (1) WO2014131069A1 (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2826541A1 (fr) * 2001-06-21 2002-12-27 Centre Nat Rech Scient Perfectionnements a la structure d'un four a resistance graphite

Family Cites Families (19)

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GB943128A (en) * 1961-08-24 1963-11-27 Frost & Co Ltd H Improvements relating to mountings for electric fire heating elements
US3855453A (en) * 1969-06-25 1974-12-17 Allied Chem Apparatus for controlled quenching of melt extruded filaments
US4015105A (en) * 1973-12-03 1977-03-29 Bjorksten Research Laboratories, Inc. Panel electrical heating element
US4021769A (en) * 1976-03-18 1977-05-03 Gte Sylvania Incorporated Electrical heating element
US4259538A (en) * 1980-01-31 1981-03-31 Jones William R Vacuum furnace arrangement having an improved heating element mounting means
US4392052A (en) * 1981-04-03 1983-07-05 Bulten-Kanthal Ab Device for carrying electrical resistance elements
DE3242959C2 (de) 1981-11-20 1986-02-20 Kabushiki Kaisha Kobe Seiko Sho, Kobe Isostatische Heißpreßvorrichtung
US4755658A (en) 1985-11-12 1988-07-05 Ultra Carbon Corporation Segmented heater system
US4856022A (en) 1988-10-05 1989-08-08 Jones William R Graphite hot zone assembly
US5157242A (en) 1990-10-29 1992-10-20 Hetherington, Inc. Hanging heating element for high temperature furnace
JPH07288178A (ja) * 1994-04-15 1995-10-31 Toyo Tanso Kk 炭素質材料からなる導電性構造体及びその取付け方法
US5575582A (en) 1995-01-18 1996-11-19 Ucar Carbon Technology Corporation Fastening device for securing electrode joints
JP4026759B2 (ja) 2002-11-18 2007-12-26 日本碍子株式会社 加熱装置
JP3982471B2 (ja) * 2003-09-10 2007-09-26 株式会社デンソー 電気式ヒータ
US7299699B2 (en) * 2004-10-05 2007-11-27 Endress + Hauser Flowtec Ag Composite system, method for its manufacture, and measurement pickup using such a composite system
CN2896172Y (zh) 2006-04-26 2007-05-02 苏州先端稀有金属有限公司 加热器
WO2010033108A1 (en) 2008-09-16 2010-03-25 Alcoa Inc. Sidewall and bottom electrode arrangement for electrical smelting reactors and method for feeding such electrodes
WO2013123319A1 (en) * 2012-02-17 2013-08-22 Bloom Energy Corporation Methods and systems for fuel cell stack sintering and conditioning
CN202514099U (zh) 2012-03-30 2012-10-31 中国有色金属工业第十四冶金建设公司 一种单级电弧熔炼炉的电极夹紧装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2826541A1 (fr) * 2001-06-21 2002-12-27 Centre Nat Rech Scient Perfectionnements a la structure d'un four a resistance graphite

Also Published As

Publication number Publication date
AT13671U1 (de) 2014-06-15
US20160018163A1 (en) 2016-01-21
WO2014131069A1 (de) 2014-09-04
JP2016515283A (ja) 2016-05-26
TWI652441B (zh) 2019-03-01
CN105008838A (zh) 2015-10-28
PL2962051T3 (pl) 2018-06-29
CN105008838B (zh) 2019-01-18
TW201437586A (zh) 2014-10-01
EP2962051A1 (de) 2016-01-06
US10107552B2 (en) 2018-10-23

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