EP1397620A1 - Vorrichtung zur elektrischen beheizung eines senkrecht stehenden raumes - Google Patents
Vorrichtung zur elektrischen beheizung eines senkrecht stehenden raumesInfo
- Publication number
- EP1397620A1 EP1397620A1 EP02745224A EP02745224A EP1397620A1 EP 1397620 A1 EP1397620 A1 EP 1397620A1 EP 02745224 A EP02745224 A EP 02745224A EP 02745224 A EP02745224 A EP 02745224A EP 1397620 A1 EP1397620 A1 EP 1397620A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating
- supports
- zone
- connecting elements
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 91
- 239000007770 graphite material Substances 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1863—Arrangement or mounting of electric heating means
-
- 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
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
- F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
- F24H3/081—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using electric energy supply
Definitions
- the invention relates to a device for the electrical heating of a vertically extending space, e.g. a reactor, to high temperatures (> 1000 ° C) and / or with high outputs (30 to 1000 kW per zone), consisting of several heating zones arranged vertically one above the other, the components of the device, with the exception of insulation parts, being made of graphite materials.
- High-temperature heaters made of graphite materials must be operated in a gas-tight, air-free boiler room.
- the current leads must be led through the wall of a dense and comparatively cold casing.
- Two-zone, graphite heaters arranged one above the other for vertical (reaction) rooms can be arranged directly above one another, separated by insulation parts.
- the sti-o inlets of a heating zone must be able to compensate for the differences in length of the heating compared to the casing due to the different thermal expansions.
- the power supplies to the middle heating zones must be routed radially out of the heating zone.
- These can now be routed radially and flexibly (by means of cooled metallic materials) through the side wall of the casing or with large-sized graphite power supply lines outside of the heating system, vertically upwards or downwards, which in turn requires flexible, metallic connections.
- very large heaters e.g. up to 10 m high
- the side connection leads to major problems during installation.
- the invention is therefore based on the object of designing and developing the device mentioned above for the electrical heating of a vertically extending space in such a way that the greatest possible degree of stability and functionality of the entire device is achieved with little construction effort.
- each zone consists of a plurality (2 or 3 times the number of zones in the case of three-phase heating) of essentially uniformly around the space R to be heated and the heaters is composed of heating elements 6 and heating element connectors 7, distributed supports 1, 2 and 3 of these supports serving simultaneously as current feeds for the heaters of each zone Z and that the heaters of each zone Z are fixed at one end and displaceable at their other ends are arranged.
- Another teaching of the invention provides that the length displaceability of the heater by means of the power supply lines (connectors 8 or 9)
- Heater opposite levels arranged guide pins 11 takes place. This ensures that the heating elements 6 can expand within the respective zone independently of the support frame surrounding them.
- the base plates 4 of each zone with the connecting elements 2 are electrically conductive or with the connecting elements 3 electrically insulating with the supports 1 and each base plate 4 in two or three (in three-phase heating), electrically from each other divided into separate areas.
- the invention is explained in more detail below using an exemplary embodiment with an illustrative drawing. Show in the drawing
- Fig. 1 shows a device according to the invention, schematically in vertical section and
- Fig. 2 shows a device according to the invention, schematically in plan view
- the heating elements 6 of the heaters (all of the 2n by i heating elements 6, the associated 2n by 2 heating element connectors 7 and the 2n-l connections of the heating element groups) are designed as CFC strips in the example drawing, however, e.g. heating rods or pipes are also used. Large-area CFC heating elements are available e.g. wherever the power density or the temperature at the heating elements must be limited.
- These supports 1 each consist of sections which are mechanically and electrically connected to one another with the connecting elements 2 or 3. The height of a support 1 and a connecting element 2 or 3 determine the height of a heating zone Z.
- An annular base plate 4 is fastened to each of the 10 connecting clips 2 and 3 on one level.
- On these base plates 4 are each Heater of each heating zone, ie the heating elements 6 with their heating element connectors 7.
- These ring-shaped base plates 4 are each divided into two half rings 4A and 4B which are electrically insulated from one another by electrically insulating insulation pieces 12. This division takes place in such a way that these half rings each conductively insulated with a connecting element 2 and with four connecting elements 3 (through the
- Isolation ring 5 is connected.
- the heaters stand with their lower four heating element connectors 7 via conductive and insulating connecting pieces 9 and 8 on the base plate half rings 4A and 4B.
- the heating element connectors 7 are in turn connected to further connecting elements (not shown) in such a way that a series connection of the heating element connectors 7 is formed
- the heaters with their four heating element connectors 7 are guided in insulating guide pins 11, which are fastened to or in the base plate 4 of the heating zone Z lying above them.
- the length of the supports 1 are dimensioned so that there is a sufficient expansion gap 10. This takes into account the different thermal expansion of the supports 1 and the heater, without the other heating zones or the overall construction being affected thereby.
- the five identically constructed heating zones Z (however, the heating elements 6 of the heaters can be varied, for example, to adjust the heating output) are now, with their base plates 4 rotated by 72 ° (360 o, 5), one above the other, so that each heating zone Z also other supports / live.
- the entire heating system with its lowest heating zone, stands on the shorter supports 13 (analog supports /), electrically and thermally decoupled by the insulation parts 14, on the base plate IS of the overall construction.
- the supports 13 can now be guided directly through the base plate 15 or rigidly connected with separate power connections (neither shown).
- the heating elements 6 are arranged upright. However, a hanging arrangement is also possible, the power connections with the connecting pieces 8 and 9 at the top and the expansion gap 10 at the bottom.
- heating elements 6 for example as a one-piece CFC
- the heating element connector 7 and the connecting pieces 8 and 9 - completely or partially - combined to form a part Meandering, the heating element connector 7 and the connecting pieces 8 and 9 - completely or partially - combined to form a part.
- the base plates 4 are expediently made from CFC materials and the connecting elements 2 and 3 from isostatically pressed fine-grain graphites of the highest strength.
- the insulating construction parts are made of Al 2 O 3 , BN or A1N, for example.
- the fit between the connecting elements 2 or 3 and the supports is / conical.
- This conical connection not only leads to a very good electrical connection and a simple construction, but is generally a prerequisite for the practical
- the individual heating zones Z - expediently preassembled - can be placed on one another in order to limit the radial forces that arise in a conical fit so that the connecting elements 2 and 3 do not tear (the strengths of the best graphite types are very small in comparison to metallic materials) Limitation of compressible axial forces
- Packings 16 (dimensioned according to the expected forces) made of expanded graphite, e.g. "Sigraflex” from SGL Carbon, attached between the connecting elements 2 and the supports 1 and 13.
- the angle of the cone fit which is necessarily very precise, should be dimensioned so that self-locking no longer occurs.
- the preassembly of the individual heating zones should take place on an assembly platform consisting of the correspondingly arranged upper parts of the 2n supports 13, onto which the connecting elements 2 and 3 with their insulation rings 5, the base plate 4 with the guide pins 11 and the insulation pieces 12 and then the supports / are placed.
- the heating elements 6 with their heating element connectors 7 can then be assembled on the base plate 4 and the connecting pieces 8 and 9.
- Other components such as thermocouple brackets and jet screens (not shown) can also be built.
- For the assembly of the heater corresponding gauges can be attached to the supports 1.
- the preassembled heating zones Z can now be placed on the underlying heating zone with a divisible subframe with crossbeam, which engages under the connecting elements 2 and 3, rotated by 72 °, the guide pins 11 in the corresponding holes in the heating element connectors 7 of the underlying heating zone be introduced.
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)
- Electric Stoves And Ranges (AREA)
- Furnace Details (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10129675A DE10129675A1 (de) | 2001-06-20 | 2001-06-20 | Vorrichtung zur elektrischen Beheizung eines senkrecht stehenden Raumes |
| DE10129675 | 2001-06-20 | ||
| PCT/EP2002/003911 WO2003001125A1 (de) | 2001-06-20 | 2002-04-09 | Vorrichtung zur elektrischen beheizung eines senkrecht stehenden raumes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1397620A1 true EP1397620A1 (de) | 2004-03-17 |
| EP1397620B1 EP1397620B1 (de) | 2006-03-22 |
Family
ID=7688789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02745224A Expired - Lifetime EP1397620B1 (de) | 2001-06-20 | 2002-04-09 | Vorrichtung zur elektrischen beheizung eines senkrecht stehenden raumes |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7078656B2 (de) |
| EP (1) | EP1397620B1 (de) |
| AT (1) | ATE321251T1 (de) |
| DE (2) | DE10129675A1 (de) |
| WO (1) | WO2003001125A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008059408A1 (de) | 2008-11-27 | 2010-06-02 | Schmid Silicon Technology Gmbh | Verfahren und Vorrichtungen zur Herstellung von Reinstsilizium |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2004976A (en) | 1931-08-07 | 1935-06-18 | Nat Electric Heating Company I | Electric fluid heater |
| DE1565398A1 (de) * | 1965-09-03 | 1970-04-16 | Atomic Energy Of Australia | Heizstab fuer elektrische Widerstandsoefen und unter Verwendung solcher Staebe gebildete Heizeinrichtung |
| US4095974A (en) | 1975-09-24 | 1978-06-20 | Thagard Technology Company | High temperature chemical reaction processes utilizing fluid-wall reactors |
| US4126757A (en) * | 1978-01-25 | 1978-11-21 | Autoclave Engineers, Inc. | Multizone graphite heating element furnace |
| US4249032A (en) * | 1979-04-06 | 1981-02-03 | Autoclave Engineers, Inc. | Multizone graphite heating element furnace |
| JPS5865795U (ja) * | 1981-10-28 | 1983-05-04 | 株式会社神戸製鋼所 | 熱間静水圧処理装置における加熱装置 |
| DE3242959C2 (de) * | 1981-11-20 | 1986-02-20 | Kabushiki Kaisha Kobe Seiko Sho, Kobe | Isostatische Heißpreßvorrichtung |
| JPS5925195U (ja) * | 1982-08-07 | 1984-02-16 | 株式会社神戸製鋼所 | 熱間静水圧処理装置における加熱装置 |
| FR2541436A1 (fr) | 1983-02-21 | 1984-08-24 | Spie Batignolles | Dispositif de chauffage electrique par effet joule direct pour chauffer un melange gazeux |
| JPH09227286A (ja) * | 1996-02-24 | 1997-09-02 | Komatsu Electron Metals Co Ltd | 単結晶製造装置 |
| JPH09263491A (ja) * | 1996-03-27 | 1997-10-07 | Shin Etsu Handotai Co Ltd | シリコン単結晶の製造装置 |
-
2001
- 2001-06-20 DE DE10129675A patent/DE10129675A1/de not_active Withdrawn
-
2002
- 2002-04-09 WO PCT/EP2002/003911 patent/WO2003001125A1/de not_active Ceased
- 2002-04-09 EP EP02745224A patent/EP1397620B1/de not_active Expired - Lifetime
- 2002-04-09 US US10/481,762 patent/US7078656B2/en not_active Expired - Fee Related
- 2002-04-09 DE DE50206149T patent/DE50206149D1/de not_active Expired - Lifetime
- 2002-04-09 AT AT02745224T patent/ATE321251T1/de not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03001125A1 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008059408A1 (de) | 2008-11-27 | 2010-06-02 | Schmid Silicon Technology Gmbh | Verfahren und Vorrichtungen zur Herstellung von Reinstsilizium |
| US8673255B2 (en) | 2008-11-27 | 2014-03-18 | Schmid Silicon Technology Gmbh | Process and apparatuses for preparing ultrapure silicon |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50206149D1 (de) | 2006-05-11 |
| ATE321251T1 (de) | 2006-04-15 |
| DE10129675A1 (de) | 2003-01-02 |
| EP1397620B1 (de) | 2006-03-22 |
| WO2003001125A1 (de) | 2003-01-03 |
| US7078656B2 (en) | 2006-07-18 |
| US20050236393A1 (en) | 2005-10-27 |
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