CH224043A - Isolator on electrical dust extractors. - Google Patents

Isolator on electrical dust extractors.

Info

Publication number
CH224043A
CH224043A CH224043DA CH224043A CH 224043 A CH224043 A CH 224043A CH 224043D A CH224043D A CH 224043DA CH 224043 A CH224043 A CH 224043A
Authority
CH
Switzerland
Prior art keywords
insulator
isolator
electrical dust
slot
dust
Prior art date
Application number
Other languages
German (de)
Inventor
Porzellanfabrik Langenthal A G
Original Assignee
Porzellanfabrik Langenthal A G
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 Porzellanfabrik Langenthal A G filed Critical Porzellanfabrik Langenthal A G
Publication of CH224043A publication Critical patent/CH224043A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34Constructional details or accessories or operation thereof
    • B03C3/66Applications of electricity supply techniques
    • B03C3/70Applications of electricity supply techniques insulating in electric separators

Landscapes

  • Insulators (AREA)

Description

  

  Isolator an elektrischen     Entstaubungsapparaten.       An     Entstaubungsapparaten    beschlägt :sich  die im     Enstaubungsraum    des Apparates be  findliche Oberfläche der Isolatoren sehr       nasch    mit Staub. Scheidet sich ausserdem auf  den Isolatoren     nocb.    Kondenswasser aus, so  haftet der Staub auch auf der     Unterseite    der       Schirme.    Bei leitendem Staub     (Gussstaub,     Zement     -j--    Kondenswasser) und leitenden  Flüssigkeiten bildet diese Schicht einen elek  trischen Kurzschluss und die Anlage arbeitet  nicht mehr.

   Erst nach einer gründlichen Rei  nigung der Isolatoren kann sie wieder in Be  trieb genommen werden. Zur Bekämpfung  dieser Erscheinung werden Isolatoren mit  grossem Kriechweg     ,gebaut    oder die Isolatoren  ständig aufgeheizt.  



  Die vorliegende     Erfindung    betrifft eine  Konstruktion, die die Bildung einer zu  sammenhängenden leitenden Schicht     ver-          unmöglicht.    Zu diesem Zweck wird eine  ringförmige Stelle der     Isolatoroberfläche     als     ausspülbarer    :Schlitz     ausgebildet,    durch  welchen z. B. ein reiner Luftstrom oder ein       gereinigtes    Gas     rings    um den Isolator ge-    blasen werden kann. Dieser Schlitz kann  leicht so bemessen werden, dass die Betriebs  spannung ihn nicht     überschlagen    kann. Der       Spülmittelstrom,    z.

   B. der Luftstrom, hält  die     Staubteilchen    an dieser Stelle vom Iso  lator fern und     verhindert    die Bildung einer  zusammenhängenden leitenden Schicht.  



  Die     Fig.    1 bis 4 der beigeordneten Zeich  nung zeigen verschiedene beispielsweise A     us-          führungsformen    dieser     Konstruktion.     



       Fig.    1     zeigt    einen     Stützer    aus Isolier  stoff mit zentralem Zuführungskanal     B1    für  saubere Luft L, welche durch radiale Boh  rungen B2 in den     ringförmigen        ,Schlitz    S  strömt.  



       Fig.    2 zeigt eine Durchführung aus Iso  lierstoff. Die Luft wird durch einen Rohr  ansatz     B    in den     Flanschring    und von dort  durch Bohrungen B1 in den Innenraum ge  führt. Durch radiale Bohrungen B2 gelangt  sie in den Spülschlitz     S.     



       Fig.    3 veranschaulicht     einen        Stützer    mit  einem     stabförmigen    Isolator und übergescho  benen Blechhülsen zur     Abschirmung    der Iso-           latorenoberfläche    und     Führung    der Spülluft.  Das     Spülgas    gelangt durch den     Flan@schring     F     und    Bohrungen<I>B</I> zwischen den     Isolator   <I>I</I>  und die     Hülse    H und strömt von dort durch  den     Luftspalt    S aus.  



       Fig.    4     zeigt.    eine Durchführung aus Iso  lierstoff mit Abschirmung aus     Blech.    Das  Spülgas gelangt vom     Flanschring    F durch  Bohrungen B in den Spülschlitz S.  



  In dem Falle, da ein     besonderes    Gas ent  staubt werden muss, bei dem eine     Bei-          mischung    von Luft nicht zulässig ist, kann  als Spülgas vom     Entstaubungsapparat        ge-          reinigtes    Gas benutzt werden.



  Isolator on electrical dust extractors. On dust collectors, the surface of the insulators in the dust collector's compartment becomes very nasty with dust. Also separates on the isolators nocb. Condensation, the dust also adheres to the underside of the screens. In the case of conductive dust (casting dust, cement -j-- condensation) and conductive liquids, this layer forms an electrical short circuit and the system no longer works.

   It can only be put back into operation after the isolators have been thoroughly cleaned. To combat this phenomenon, insulators with a large creepage distance are built or the insulators are constantly heated.



  The present invention relates to a construction which makes it impossible to form a continuous conductive layer. For this purpose, an annular point on the insulator surface is designed as a flushable slot through which z. B. a pure air stream or a purified gas can be blown around the insulator. This slot can easily be dimensioned so that the operating voltage cannot overturn it. The detergent stream, e.g.

   B. the air flow, keeps the dust particles away from the Iso lator and prevents the formation of a cohesive conductive layer.



  1 to 4 of the accompanying drawing show various exemplary embodiments of this construction.



       Fig. 1 shows a support made of insulating material with a central supply channel B1 for clean air L, which ments through radial bores B2 in the annular slot S flows.



       Fig. 2 shows a implementation made of Iso lierstoff. The air is led through a pipe approach B into the flange ring and from there through holes B1 into the interior. It reaches the flushing slot S through radial bores B2.



       3 illustrates a support with a rod-shaped insulator and sheet metal sleeves pushed over to shield the insulator surface and guide the scavenging air. The purge gas passes through the flange F and holes <I> B </I> between the insulator <I> I </I> and the sleeve H and flows out through the air gap S from there.



       Fig. 4 shows. a bushing made of insulating material with shielding made of sheet metal. The purging gas flows from the flange ring F through holes B into the purging slot S.



  In the event that a special gas has to be dedusted in which the admixture of air is not permitted, gas cleaned by the dedusting apparatus can be used as the flushing gas.

 

Claims (1)

PATENTANSPRUCH: Isolator an elektrischen Entstaubungs- apparaten, dadurch gekennzeichnet, daB eine ringförmige Stelle seiner Oberfläche als au spülbarer Schlitz ausgebildet ist, zum Zwecke, diese Stelle vor Verunreinigungen schützen zu können. UNTERANSPRtJCHE 1. PATENT CLAIM: Insulator on electrical dust removal devices, characterized in that an annular point on its surface is designed as a flushable slot for the purpose of being able to protect this point from contamination. SUB-CLAIMS 1. Isolator nach Patentanspruch, dadurch gekennzeichnet, daB der ringförmige Schlitz im Isolator eingedreht ist und durch den Isolator hindurch auseptilbar ist. Insulator according to patent claim, characterized in that the annular slot is screwed into the insulator and can be removed through the insulator. 2. Isolator nach Patentanspruch, dadurch gekennzeichnet, daB der ringförmige Schlitz durch Blechhülsen gebildet wird, die über den Isolator geschoben sind. 3. 2. Insulator according to patent claim, characterized in that the annular slot is formed by sheet metal sleeves which are pushed over the insulator. 3. Isolator nach Patentanspruch, dadurch gekennzeichnet, dass als Spülgas das gerei- nigte Gas benützt wird. Insulator according to patent claim, characterized in that the cleaned gas is used as the flushing gas.
CH224043D 1942-02-05 1942-02-05 Isolator on electrical dust extractors. CH224043A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH224043T 1942-02-05

Publications (1)

Publication Number Publication Date
CH224043A true CH224043A (en) 1942-10-31

Family

ID=4453341

Family Applications (1)

Application Number Title Priority Date Filing Date
CH224043D CH224043A (en) 1942-02-05 1942-02-05 Isolator on electrical dust extractors.

Country Status (1)

Country Link
CH (1) CH224043A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010784A1 (en) * 1978-10-27 1980-05-14 Metallgesellschaft Ag Device and method for avoiding a soiling turbulence during the ventilation of insulators in electrofilters
EP0587441A1 (en) * 1992-09-11 1994-03-16 Trion Inc. Venturi insulator for use in an electrostatic precipitator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010784A1 (en) * 1978-10-27 1980-05-14 Metallgesellschaft Ag Device and method for avoiding a soiling turbulence during the ventilation of insulators in electrofilters
EP0587441A1 (en) * 1992-09-11 1994-03-16 Trion Inc. Venturi insulator for use in an electrostatic precipitator
US5421863A (en) * 1992-09-11 1995-06-06 Trion, Inc. Self-cleaning insulator for use in an electrostatic precipitator

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