EP1406056A1 - Assemblage d'une installation pour sécher un matériau chargé d'humidité - Google Patents

Assemblage d'une installation pour sécher un matériau chargé d'humidité Download PDF

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Publication number
EP1406056A1
EP1406056A1 EP02405858A EP02405858A EP1406056A1 EP 1406056 A1 EP1406056 A1 EP 1406056A1 EP 02405858 A EP02405858 A EP 02405858A EP 02405858 A EP02405858 A EP 02405858A EP 1406056 A1 EP1406056 A1 EP 1406056A1
Authority
EP
European Patent Office
Prior art keywords
autoclave
wall section
assembly according
evaporator
wall
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Withdrawn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
EP02405858A
Other languages
German (de)
English (en)
Inventor
Paul Gmeiner
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.)
Micafil AG
Original Assignee
Micafil 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 Micafil AG filed Critical Micafil AG
Priority to EP02405858A priority Critical patent/EP1406056A1/fr
Priority to DE2003140920 priority patent/DE10340920A1/de
Publication of EP1406056A1 publication Critical patent/EP1406056A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
    • F26B21/145—Condensing the vapour onto the surface of the materials to be dried

Definitions

  • the invention is based on an assembly according to the preamble of claim 1.
  • This assembly is part of a system for drying moisture-contaminated goods according to the vapor phase method and has one the heatable and evacuable container (autoclave) that holds the material to be dried as well as an autoclave heater and one arranged in the autoclave Evaporator.
  • autoclave heatable and evacuable container
  • the Dried goods generally contain a hygroscopic electrical Insulating material, for example based on paper or plastic, and is in general as an electrical device, such as a transformer, capacitor or bushing, or executed as part of it.
  • the insulating material can be used for drying Formation of a dielectric high-quality insulation with insulating oil or a hardenable Insulating resin are soaked. If the items to be dried have more besides water liquid components, such as high-boiling insulating oil Heat transfer fluid is a solvent that dissolves the components and becomes them Components due to the condensing heat transfer medium from the material to be dried removed. Then not only dry, but also oil-free goods are achieved.
  • the invention also relates to a module receiving Drying plant.
  • the invention takes on a prior art Components for drying systems, as described by P.K.Gmeiner in the Company name of Micafil Vacuum Technology AG, Zurich, MTV / E 02923000/22 "Modern vapor drying processes and plants" is described.
  • Plant published in diagram S3 for drying moisture-contaminated Good has an assembly with one of the receptacles of the goods to be dried serving autoclave in which a cascade evaporator is installed.
  • This Evaporator contains several cascade-type predominantly vertical heating registers arranged one above the other, via which an easily volatilized and solvent generally designed as a solvent and extractant for oil is stepped from top to bottom.
  • the steam formed is on condensed material to be dried.
  • the heating provided in the autoclave heats the goods to a temperature of typically heated to 100 to 130 °. At this temperature and under vacuum water contained in the goods is quickly removed by diffusion and the goods are so quickly dried.
  • a vapor mixture created in this process step of solvent and water is in an outside of the autoclave Capacitor deposited. Is the good as an electrical device, for example as Transformer or bushing, executed, and contains it soaked with insulating oil Electrical insulation, so the solvent can also remove the oil from the insulation extract.
  • the solvent / oil mixture formed in this way collects on Bottom of the autoclave and can during a lowering of the intermediate pressure, i.e. a phase in which the evaporator is no longer supplied with fresh solvent and that Solvent / water vapor mixture from the autoclave into a condenser Drying system is performed, distilled.
  • the invention solves the problem Specify assembly of the type mentioned, which is characterized by a large Usable volume of the autoclave and characterized by simple structure.
  • the evaporator contains one of the Autoclave heating, predominantly vertically oriented section of a Wall of the autoclave, and means are provided on this wall section a guide of the heat transfer fluid in the form of a film on the Ensure wall section. Therefore, the for drying and if necessary in addition, heat transfer fluid vapor required for extracting oil directly on a wall section of the heated by the autoclave heating Autoclaves generated. An additional one independent of the autoclave heating Evaporator heating can therefore be saved. In addition, in the Autoclave wall provided bushings through which the Evaporator heating energy would have to be supplied.
  • the autoclave is cuboid executed and has one or more gates. Be included at the same time Wall section a side wall, two or more side walls and / or one or several gates of the autoclave.
  • the evaporator Particularly easy to maintain because the heating is permanently accessible from the outside and the guide elements for the heat transfer fluid after opening the Autoclaves are easily accessible and extremely easy to maintain, especially can be cleaned.
  • High evaporation values and a constant evaporation rate over the whole Wall sections are reached when there is a temperature gradient at the wall section can be set with at least two superimposed temperature levels.
  • the Temperature distribution in the wall section is advantageously set so that the Temperature difference on the heat transfer fluid film between the Heat transfer fluid and the wall section each in the area of the two Temperature levels is about the same size.
  • This gradient is particularly simple Way adjustable by two sections of the autoclave heater Sections can be regulated independently of one another.
  • At least one is the Temperature as a controlled variable of the autoclave heating Temperature sensor provided, which is generally on the wall section or on a point of the evaporator is attached, at that of the evaporator Generable vapor of the heat transfer fluid in a moisture-laden Parts containing usable space of the autoclave is feasible.
  • the guide means for the heat transfer fluid at the top Distribution system attached to the end of the wall section. Especially then if the distribution system is considered horizontal along the top of the Wall section extending channel with a molded in the channel bottom and run in the channel direction, it is ensured that the Heat transfer fluid evenly out over the heatable wall section and so the desired evaporation with a uniformly thin Surface film is enabled.
  • a good heat transfer from the heat transfer medium for high evaporation rates Autoclave heating on the wall section is achieved when the Autoclave heating has at least one channel carrying heat transfer medium, which is bounded by at least part of the wall section.
  • the system shown in FIG. 1 has an assembly 1 as the central component.
  • This assembly contains a heatable and evacuable container (autoclave 2) a heater 3 and an evaporator 4 arranged in the autoclave
  • Autoclave 2 is essentially cuboid and is not a shown gate with a moisture and oil-containing insulation containing electrical device 5, such as a transformer, loaded.
  • electrical device 5 such as a transformer
  • the autoclave 2 can be evacuated.
  • From a collecting container 13 which is connected to a reservoir 7 via a pump 8, and / or from a separator 11 can the evaporator 4 via pumps 9 and / or 12th a heat transfer fluid designed as an oil-dissolving solvent can be supplied.
  • These funds include a distribution system 19 attached to the upper end of wall section 18, two arranged below the distribution system 19 and against each other vertically offset, horizontally guided storage channels 20, one at the lower end of the Wall section 18 attached, horizontally extended and with a not shown outlet of the autoclave 2 connected collecting channel 21 and a arranged between the distribution system 19 and collecting trough 21 and parallel and baffle 22 guided at a distance from wall section 18.
  • the distribution system is as a channel extending horizontally along the upper end of the wall section 18 191 with one molded into the channel floor and guided in the channel direction Drain gap 192 executed.
  • In the baffle 22 is at the bottom optionally adjustable steam outlet opening 221 is formed.
  • On the baffle three substantially horizontally guided deflection ribs 222 are also attached.
  • the reference numerals 23 and 24 are the temperature as a controlled variable Autoclave heating sensors designated, one of which on Wall section 18 and the other attached at one point of the evaporator 4 at which the solvent vapor generated by the evaporator into which the device 5 receiving usable space of the autoclave 2, such as on the Steam outlet opening 221.
  • this module is characterized by a low energy consumption and at the same time compared to an assembly according to the prior art with one arranged in the autoclave Cascade evaporator usable space gained.
  • a supporting the autoclave wall 4 and from Figures 4 and 5 visible structure 28 and the autoclave wall 4 are at least in the Area of the wall section 18 temperature stabilized by the circulated air. Temperature differences in the support structure can be kept as low and undesirable tensions in the autoclave wall and the support structure be avoided.
  • the Heat transfer medium of the autoclave heater 3 is not guided in tubes 16, but in a flat manner formed channels, one of which is designated by reference numeral 26 marked channel is shown in Fig.5.
  • This channel extends perpendicular to the paper plane predominantly in the vertical direction and points in A small depth in relation to its width.
  • the depth of the channel 26 is determined by unspecified distance means, which predominantly Separate vertically guided part of the wall section 18 from a plate 27. in the Difference to a pipe can now be larger due to the flat profile Amount of heat are released from the heat transfer to the wall section, so that with this embodiment of the assembly a high efficiency and a high evaporation rate can be achieved.
EP02405858A 2002-10-04 2002-10-04 Assemblage d'une installation pour sécher un matériau chargé d'humidité Withdrawn EP1406056A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02405858A EP1406056A1 (fr) 2002-10-04 2002-10-04 Assemblage d'une installation pour sécher un matériau chargé d'humidité
DE2003140920 DE10340920A1 (de) 2002-10-04 2003-09-05 Baugruppe einer Anlage zum Trocknen von feuchtigkeitsbelastetem Gut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02405858A EP1406056A1 (fr) 2002-10-04 2002-10-04 Assemblage d'une installation pour sécher un matériau chargé d'humidité

Publications (1)

Publication Number Publication Date
EP1406056A1 true EP1406056A1 (fr) 2004-04-07

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ID=31985177

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02405858A Withdrawn EP1406056A1 (fr) 2002-10-04 2002-10-04 Assemblage d'une installation pour sécher un matériau chargé d'humidité

Country Status (2)

Country Link
EP (1) EP1406056A1 (fr)
DE (1) DE10340920A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2719984A1 (fr) * 2012-10-09 2014-04-16 ABB Technology Ltd Appareil de séchage en phase vapeur
CN108335807A (zh) * 2018-01-25 2018-07-27 重庆市天宇电线电缆制造有限公司 高压电缆干燥装置
CN113205925A (zh) * 2021-05-07 2021-08-03 郴州市伟强科技有限公司 电线挤塑生产线
CN113532029A (zh) * 2021-06-24 2021-10-22 华能伊敏煤电有限责任公司 大安匝数电流互感器绝缘受潮处理的干燥装置及干燥方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2756298A1 (de) * 1977-10-10 1979-04-19 Micafil Ag Trenneinrichtung zu einer kondensations-trocknungsvorrichtung
DE3014831A1 (de) * 1980-02-29 1981-09-17 Micafil AG, 8048 Zürich Kaskadenverdampfer fuer kondensations-trocknungsvorrichtungen
EP0290098A1 (fr) * 1987-05-07 1988-11-09 Micafil Ag Procédé et dispositif pour l'extraction d'huile ou de composés biphényles polychlorurés de composants électriques imprégnés au moyen d'un agent de solution ainsi que la distillation du solvant
EP0752567A1 (fr) * 1995-07-04 1997-01-08 MICAFIL Vakuumtechnik AG Procédé de séchage d'une isolation solide d'un appareil électrique, et dispositif pour la mise en oeuvre de ce procédé
DE19637313A1 (de) * 1995-09-16 1997-03-27 Hedrich Vakuumanlagen Wilhelm Vorrichtung zum Aufheizen von Teilen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2756298A1 (de) * 1977-10-10 1979-04-19 Micafil Ag Trenneinrichtung zu einer kondensations-trocknungsvorrichtung
DE3014831A1 (de) * 1980-02-29 1981-09-17 Micafil AG, 8048 Zürich Kaskadenverdampfer fuer kondensations-trocknungsvorrichtungen
EP0290098A1 (fr) * 1987-05-07 1988-11-09 Micafil Ag Procédé et dispositif pour l'extraction d'huile ou de composés biphényles polychlorurés de composants électriques imprégnés au moyen d'un agent de solution ainsi que la distillation du solvant
EP0752567A1 (fr) * 1995-07-04 1997-01-08 MICAFIL Vakuumtechnik AG Procédé de séchage d'une isolation solide d'un appareil électrique, et dispositif pour la mise en oeuvre de ce procédé
DE19637313A1 (de) * 1995-09-16 1997-03-27 Hedrich Vakuumanlagen Wilhelm Vorrichtung zum Aufheizen von Teilen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GMEINER P K: "Modern vapour drying processes and plants", ANNOUNCEMENT MICAFIL VAKUUMTECHNIK, XX, XX, February 1992 (1992-02-01), XP002016470 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2719984A1 (fr) * 2012-10-09 2014-04-16 ABB Technology Ltd Appareil de séchage en phase vapeur
WO2014056818A1 (fr) * 2012-10-09 2014-04-17 Abb Technology Ltd Appareil de séchage en phase vapeur
CN108335807A (zh) * 2018-01-25 2018-07-27 重庆市天宇电线电缆制造有限公司 高压电缆干燥装置
CN113205925A (zh) * 2021-05-07 2021-08-03 郴州市伟强科技有限公司 电线挤塑生产线
CN113205925B (zh) * 2021-05-07 2022-05-31 郴州市伟强科技有限公司 电线挤塑生产线
CN113532029A (zh) * 2021-06-24 2021-10-22 华能伊敏煤电有限责任公司 大安匝数电流互感器绝缘受潮处理的干燥装置及干燥方法

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Publication number Publication date
DE10340920A1 (de) 2004-06-09

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