EP0195765A2 - Verfahren und Einrichtung zum Aufhängen eines elektrischen Widerstandselements - Google Patents
Verfahren und Einrichtung zum Aufhängen eines elektrischen Widerstandselements Download PDFInfo
- Publication number
- EP0195765A2 EP0195765A2 EP86850096A EP86850096A EP0195765A2 EP 0195765 A2 EP0195765 A2 EP 0195765A2 EP 86850096 A EP86850096 A EP 86850096A EP 86850096 A EP86850096 A EP 86850096A EP 0195765 A2 EP0195765 A2 EP 0195765A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- profile
- elements
- suspension
- fibre
- blocks
- 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- Withdrawn
Links
Images
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
- H05B3/62—Heating elements specially adapted for furnaces
- H05B3/66—Supports or mountings for heaters on or in the wall or roof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C3/00—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
- H01C3/10—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids the resistive element having zig-zag or sinusoidal configuration
Definitions
- This invention relates to a method and device for suspension of an electric resistance heating element.
- the invention is in the first place intended to be used in industrial furnaces.
- the resistance elements are usually meander shaped with a varying number of loops.
- the number of loops is usually in the interval of 5 to 50.
- the loops are attached vertically on the inner walls of the furnace. To avoid deformation of the elements during operation every single loop should have a support or attachment on the wall.
- This invention relates to suspension of meander shaped electrical resistance elements on fibre board walls i.e. rigid blocks or boards of ceramic fibre material.
- Suspension of the resistance elements on fibre blocks involve several problems. To give the elements sufficient support as well as reduce the local pressure on the fibre blocks every single meander loop should have a support separately attached to the fibre blocks. The number of supports in a furnace can therefore be very large.
- One way to solve the problem of the limited capacity of the blocks to endure pressure is letting the suspension devices be fixed in the steel construction or plating which generally forms the outer wall of the furnace.
- the suspension devices have, however, a much higher thermal conductivity than the insulation material in the walls and letting the suspension devices be fixed in the outer walls leads to heat losses from the furnace by this way.
- a further disadvantage are the installation problems involved with such solutions.
- Another way to suspend elements on fibre blocks is to build suspension devices e.g.
- This invention aims at giving a simple suspension of the elements with the possibility to place these anywhere on the furnace walls eliminating at the same time the above problems.
- the invention is distinguished by the characteristics indicated in the patent claims.
- the resistance element (1) shown in fig. 1 is suspended on a number of suspension devices (2) which best consists of profiles of the same material as the resistance element.
- the profiles can be given the shape as shown in figures 3 and 4d. Without any previous making of holes in the fibre blocks such a profile can then be stuck into the block and provide the suspension device for a meander loop.
- the profiles should be stuck into the fibre block by at least 2!3 of their length. The distribution of the profiles is considerably facilitated by the fact that these do not need to be set out until the furnace is finished and the elements shall be placed on the profiles.
- the ready elements can there be used as master component for the installation of the profiles.
- the profiles should be stuck into the wall with a gradient of about 45° against the vertical plane as it is shown in figure 2. In figure 2 two profiles (2) are shown which support an element (1) each.
- the profiles are stuck into the fiberblocks (3) forming the inner wall of a furnace.
- the furnace wall is also provided with a further insulation (4) and an outer wall (5) of sheet metal.
- profiles be designed with different cross-sections as shown in fig. 4 a-d.
- the profile should be such that the outer edges were bent minimum 60° from each other i.e. the angle which in fig. 4a has been marked by v 1 shall be minimum 60°.
- the angle V2 should be about 120° which corresponds to the outer edges having been bent 60° from each other.
- Fig. 5 shows the design type of the invention which fits the element of strip shaped material.
- a bridge (6) is fixed, e.g. by welding.
- the profile is stuck into one of the fibre blocks (3) forming the furnace wall whereafter the resistance element (1) is suspended and supported by the bridge.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Furnace Charging Or Discharging (AREA)
- Resistance Heating (AREA)
- Furnace Details (AREA)
- Details Of Resistors (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8501418 | 1985-03-22 | ||
SE8501418A SE447044B (sv) | 1985-03-22 | 1985-03-22 | Sett vid, och profil for, upphengning av meanderformade elektriska motstandselement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0195765A2 true EP0195765A2 (de) | 1986-09-24 |
EP0195765A3 EP0195765A3 (de) | 1987-05-27 |
Family
ID=20359605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86850096A Withdrawn EP0195765A3 (de) | 1985-03-22 | 1986-03-19 | Verfahren und Einrichtung zum Aufhängen eines elektrischen Widerstandselements |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0195765A3 (de) |
JP (1) | JPS61277188A (de) |
SE (1) | SE447044B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2788402A1 (fr) * | 1999-01-07 | 2000-07-13 | Michel Crusot | La suspension de resistances electriques dans des paves de fibreux souples |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1078639A (fr) * | 1953-04-03 | 1954-11-19 | Heurtey & Cie | Dispositif d'accrochage notamment pour les éléments de chauffage à résistances dans les fours |
FR1091227A (fr) * | 1954-01-08 | 1955-04-08 | Perfectionnement à la construction des parois de fours électriques | |
EP0052840A1 (de) * | 1980-11-24 | 1982-06-02 | Kennecott Corporation | Halterungsanlage oder Abstützung für elektrische Heizelemente in Öfen oder Einrichtungen, die mit keramischen Fasern isoliert sind |
DE3224612A1 (de) * | 1981-07-06 | 1983-01-27 | General Signal Corp., 06904 Stamford, Conn. | Stuetzvorrichtung fuer elektrische widerstandselemente |
FR2519748A1 (fr) * | 1980-10-30 | 1983-07-18 | Manville Service Corp | Module et garnissage d'isolation de la paroi interne d'un four, support d'element chauffant electrique pour ce module et procede de pose de modules d'isolation |
US4493089A (en) * | 1983-03-21 | 1985-01-08 | Refractory Poroducts Co. | Electric furnace insulation |
-
1985
- 1985-03-22 SE SE8501418A patent/SE447044B/sv not_active IP Right Cessation
-
1986
- 1986-03-19 JP JP61061952A patent/JPS61277188A/ja active Pending
- 1986-03-19 EP EP86850096A patent/EP0195765A3/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1078639A (fr) * | 1953-04-03 | 1954-11-19 | Heurtey & Cie | Dispositif d'accrochage notamment pour les éléments de chauffage à résistances dans les fours |
FR1091227A (fr) * | 1954-01-08 | 1955-04-08 | Perfectionnement à la construction des parois de fours électriques | |
FR2519748A1 (fr) * | 1980-10-30 | 1983-07-18 | Manville Service Corp | Module et garnissage d'isolation de la paroi interne d'un four, support d'element chauffant electrique pour ce module et procede de pose de modules d'isolation |
EP0052840A1 (de) * | 1980-11-24 | 1982-06-02 | Kennecott Corporation | Halterungsanlage oder Abstützung für elektrische Heizelemente in Öfen oder Einrichtungen, die mit keramischen Fasern isoliert sind |
DE3224612A1 (de) * | 1981-07-06 | 1983-01-27 | General Signal Corp., 06904 Stamford, Conn. | Stuetzvorrichtung fuer elektrische widerstandselemente |
US4493089A (en) * | 1983-03-21 | 1985-01-08 | Refractory Poroducts Co. | Electric furnace insulation |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2788402A1 (fr) * | 1999-01-07 | 2000-07-13 | Michel Crusot | La suspension de resistances electriques dans des paves de fibreux souples |
Also Published As
Publication number | Publication date |
---|---|
SE447044B (sv) | 1986-10-20 |
SE8501418L (sv) | 1986-09-23 |
SE8501418D0 (sv) | 1985-03-22 |
EP0195765A3 (de) | 1987-05-27 |
JPS61277188A (ja) | 1986-12-08 |
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Legal Events
Date | Code | Title | Description |
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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 |
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AK | Designated contracting states |
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PUAL | Search report despatched |
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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 |
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18D | Application deemed to be withdrawn |
Effective date: 19871128 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: JOHANSSON, LARS GOERAN |