EP1005913A2 - Espaceur pour filtre électrique, électrostatique en particulier - Google Patents

Espaceur pour filtre électrique, électrostatique en particulier Download PDF

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Publication number
EP1005913A2
EP1005913A2 EP99121462A EP99121462A EP1005913A2 EP 1005913 A2 EP1005913 A2 EP 1005913A2 EP 99121462 A EP99121462 A EP 99121462A EP 99121462 A EP99121462 A EP 99121462A EP 1005913 A2 EP1005913 A2 EP 1005913A2
Authority
EP
European Patent Office
Prior art keywords
base body
spacer
spacer according
edge
filter
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Withdrawn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
EP99121462A
Other languages
German (de)
English (en)
Other versions
EP1005913A3 (fr
Inventor
Peter Gutmann
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.)
HB Unternehmensberatung GmbH
Original Assignee
HB Unternehmensberatung GmbH
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 HB Unternehmensberatung GmbH filed Critical HB Unternehmensberatung GmbH
Publication of EP1005913A2 publication Critical patent/EP1005913A2/fr
Publication of EP1005913A3 publication Critical patent/EP1005913A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION 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
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/66—Applications of electricity supply techniques
    • B03C3/70—Applications of electricity supply techniques insulating in electric separators

Definitions

  • the invention relates to a spacer for an electrical, in particular a electrostatic filter, which is an insulating material or has a base body coated with such a material, through which spatially separated elements of the filter can be kept at a distance.
  • Such a spacer is known from DE 39 30 872.
  • This publication describes an electrostatic separator for cleaning gases, especially for cleaning the room air, which has an electrostatic filter, which are arranged essentially concentrically and at a distance from each other insulated tubular flow channels is formed between which has a high voltage field supplied by a voltage source.
  • the flow channels of the separator are as electrically conductive hoses formed by means of spacers distributed over their length Distance from each other.
  • the known spacers are cylindrical formed, with adjacent electrically conductive hoses to the both top surfaces of the cylindrical spacers are arranged.
  • the known spacers have the disadvantage that as a result of their cylindrical Shape them particularly susceptible to deposits from being cleaned Airborne particles are. This is in the high voltage field of electrical Deposits present in the filter have an adverse effect destruction of the insulating material of the base body, so that the required insulating property of the spacer is lost and electrical breakdown occur between adjacent metal hoses that are not only one Destruction of the electrostatic filter can result, but also a Danger to air purification devices with people operating such filters represents.
  • the measures according to the invention advantageously result in that as a result of that lying foremost in the direction of flow, over a large part pointed front edge running along the axial extension of the spacer favorable flow behavior of the particles, which can be found in the on the invention Spacer air or gas flow flowing past is reached, so that these particles are not or only in a known state of the Technology highly reduced extent on the spacer according to the invention precipitate so that due to the few possibly precipitating particles no destruction or reduction of the insulating properties result can.
  • This not only increases the lifespan of the spacers according to the invention extended compared to the known versions. Rather, in advantageous way the short-circuit strength of the spacer according to the invention elevated. This brings with it in an advantageous manner that now higher voltages can be used, which is advantageous and causes a better cleaning effect of the electrical filter.
  • An advantageous development of the invention provides that also in the direction of flow rear sub-area of the base body is essentially an ogival Has shape so that a substantially lanceolate shape of the spacer according to the invention is realized.
  • Such training has the advantage that the rear edge of the spacer according to the invention a tear-off edge for the flowing past the spacer according to the invention Air or gas forms, which is extremely favorable in terms of fluid dynamics is.
  • the base body of the spacer according to the invention made of a material with a low pore or is produced essentially pore-free surface.
  • This invention Measures have the advantage that they also cause deposits is reduced by particles in the air or gas flow.
  • the base body of the spacer according to the invention made of ceramic or aluminum oxide is made.
  • Such a measure has the advantage that one of them Spacers made of materials have a higher heat resistance.
  • FIGS. 1-3 now show a first exemplary embodiment, generally designated 1 a spacer for an electrical, in particular an electrostatic Filters shown how it z. B. in an electrostatic precipitator according to German patent DE 39 30 872 C2, the disclosure of which this reference is explicitly the subject of the present application is made, is used.
  • Figure 1 shows a view of an electrical insulating material manufactured or with such a material coated base body 2 of the spacer 1 in the flow direction L one gas and / or flowing past the spacer in the assembled state Airflow, i.e. that the flow direction L of the air flow orthogonal to Drawing plane of Figure 1 runs.
  • the base body 2 has an upper cover surface 2a and a lower cover surface 2b, on which in the assembled state elements of the electrical filter to be separated, e.g. the above Patented electrically conductive hoses described, put on.
  • elements of the electrical filter to be separated e.g. the above Patented electrically conductive hoses described, put on.
  • the filter elements to be separated are the aforementioned Hoses.
  • the base body 2 essentially has one lanceolate shape, with the one shown in Figures 1-3 Embodiment - as will be described below - in the direction of flow L front side surfaces 4a, 4b and / or rear side surfaces 5a ', 5b' are not run parallel to the axis A of the base body 2, but - as from the figures 1 and 2 can be seen - these side surfaces 4a-5b one in two sections 7a, 7a ', 7b, 7b' have an articulated, arcuate course.
  • One in the direction of flow L forms a pointed front edge 3 of the lancet-shaped base body 2 a leading edge for the gas and / or air flow and advantageously Way that the impinging on the spacer 1 gas or Airflow divided essentially without turbulence and thus without turbulence along adjoining the pointed front edge 3 in the flow direction L substantially arcuate side surfaces 4a, 4b of the front Section 8a of the base body is passed.
  • the side surfaces 4a.4b of the front Subarea 8a of the base body 2 go continuously into rear side surfaces 5a, 5b of the rear region 8b of the base body 2 in the flow direction L over, so that in an advantageous manner a steady transition of the air and / or gas flow from the front section 8a to the rear section 8b of the base body 2 is guaranteed.
  • the rear section in the direction of flow L. 8b of the base body 2 ends with a sharp, trailing edge 6, the one good tear-off edge for the gas and / or air flow, so that also given a flow course with as little turbulence as possible is.
  • the described configuration of the base body 2 with two lancet shapes supplementary pointed arch 10a, 10b advantageously causes that the risk of deposits in the air and / or gas flow Particles on the base body 2 of the spacer 1 are eliminated or at least is reduced. It is thus advantageously prevented by the previously through the interaction of deposited particles and the high-voltage field caused destruction of the material of the base body 2 occurs, so that the service life and also the short-circuit strength of the spacer described 1 is increased.
  • the front edge 3 and / or runs the rear edge 6 of the base body 2 is not axially parallel in the axial direction to the central axis A of the base body 2, but they form - in that described here Case - two arches directed into the interior of the base body 2 3a, 3b and 6a, 6b.
  • This is a consequence of those already described above Design of the side surfaces 4a, 4b, 5a, 5b of the base body 2.
  • FIGS. 4-6 show a second exemplary embodiment of the spacer 1 shown, which in its basic structure essentially with that of the first embodiment matches, so that identical or corresponding parts with the same reference numerals and not need to be described in more detail.
  • the main difference between the two embodiments is in that the axial course of the side surfaces 4a, 4b, 5a, 5b of the base body 2 and thus the axial course of the front and rear edges 3 and 6 differs from the first embodiment in that the first Exemplary embodiment forming two indentations of the base body 2 arcuate sections 7a, 7a ', 7b, 7b' and three in the third embodiment corresponding indentations forming sections 7a, 7a ', 7b, 7b', 7c, 7c 'are provided are.
  • Such a measure has the advantage that a better deflection of the particles carried in the gas and / or air stream is achieved becomes.
  • the two spacers 1 are essentially lancet-shaped, i.e. that the shape of the base body 2 essentially by two pointed arches 10a, 10b given is. But it is quite sufficient for a variety of applications, that only the front region 2a of the base body in the direction of flow L. 2 has an ogival shape.
  • the design of the side surfaces 4a, 4b, 5a, 5b can be done to a high degree vary. It is also possible that these are not - as shown in Figure 2 - in essentially arc-shaped, but - in an extreme case - straight are, so that here the shape of the ogive 10a and / or 10b to that approximates a triangle.
  • the base body 2 made of a material with a low pore or pore-free surface is formed, or that the base body 2 with such a surface is coated. This measure has the advantage that this further counteracts the deposition of particles.
  • the spacer 1 made of ceramic or aluminum oxide is made. This measure has the advantage that a higher one Heat resistance of the spacer 1 is achieved.
  • the lower cover surface 2b of the base body 2 has an opening 20 through which a flexible band 21 is pullable, through which the spacer 1 on its associated flow channel is attachable.

Landscapes

  • Filtering Materials (AREA)
EP99121462A 1998-11-28 1999-10-28 Espaceur pour filtre électrique, électrostatique en particulier Withdrawn EP1005913A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998155044 DE19855044C1 (de) 1998-11-28 1998-11-28 Distanzhalter für einen elektrischen, insbesondere einen elektrostatischen Filter
DE19855044 1998-11-28

Publications (2)

Publication Number Publication Date
EP1005913A2 true EP1005913A2 (fr) 2000-06-07
EP1005913A3 EP1005913A3 (fr) 2000-11-22

Family

ID=7889394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99121462A Withdrawn EP1005913A3 (fr) 1998-11-28 1999-10-28 Espaceur pour filtre électrique, électrostatique en particulier

Country Status (2)

Country Link
EP (1) EP1005913A3 (fr)
DE (1) DE19855044C1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE328828C (de) * 1920-01-01 1920-11-12 Paul Kirchhoff Dipl Ing Verfahren und Einrichtung zur Erhaltung der Isolation von in staub- oder feuchtigkeithaltigen Gasen befindlichen Isolatoren
DE3323926A1 (de) * 1983-07-02 1985-01-24 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zum reinigen von gasen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3930872A1 (de) * 1989-09-15 1991-03-28 Rolf Hertfelder Elektrostatische filtereinrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE328828C (de) * 1920-01-01 1920-11-12 Paul Kirchhoff Dipl Ing Verfahren und Einrichtung zur Erhaltung der Isolation von in staub- oder feuchtigkeithaltigen Gasen befindlichen Isolatoren
DE3323926A1 (de) * 1983-07-02 1985-01-24 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zum reinigen von gasen

Also Published As

Publication number Publication date
DE19855044C1 (de) 1999-12-30
EP1005913A3 (fr) 2000-11-22

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