EP3654465A1 - Ioniseur - Google Patents

Ioniseur Download PDF

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Publication number
EP3654465A1
EP3654465A1 EP18207052.4A EP18207052A EP3654465A1 EP 3654465 A1 EP3654465 A1 EP 3654465A1 EP 18207052 A EP18207052 A EP 18207052A EP 3654465 A1 EP3654465 A1 EP 3654465A1
Authority
EP
European Patent Office
Prior art keywords
emitting electrode
corona discharge
electrode
discharge points
air
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Withdrawn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
EP18207052.4A
Other languages
German (de)
English (en)
Inventor
Lars Wettre
Emil HELIN
Carl Johan DAHLGREN
David Marcus ODELROS
Attila Fodor
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.)
Blueair Cabin Air AB
Original Assignee
Blueair Cabin Air AB
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 Blueair Cabin Air AB filed Critical Blueair Cabin Air AB
Priority to EP18207052.4A priority Critical patent/EP3654465A1/fr
Priority to EP19801927.5A priority patent/EP3884551A1/fr
Priority to PCT/EP2019/081856 priority patent/WO2020104488A1/fr
Publication of EP3654465A1 publication Critical patent/EP3654465A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T19/00—Devices providing for corona discharge
    • H01T19/04—Devices providing for corona discharge having pointed electrodes
    • 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
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/12—Plant or installations having external electricity supply dry type characterised by separation of ionising and collecting stations
    • 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
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/14—Plant or installations having external electricity supply dry type characterised by the additional use of mechanical effects, e.g. gravity
    • B03C3/155—Filtration
    • 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
    • B03C3/36—Controlling flow of gases or vapour
    • B03C3/368—Controlling flow of gases or vapour by other than static mechanical means, e.g. internal ventilator or recycler
    • 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
    • B03C3/38—Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames
    • 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
    • B03C3/40—Electrode constructions
    • B03C3/41—Ionising-electrodes
    • 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
    • B03C3/40—Electrode constructions
    • B03C3/45—Collecting-electrodes
    • B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
    • 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
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/10—Ionising electrode has multiple serrated ends or parts

Definitions

  • the present invention relates to an ionisation system for an air purifying device and with improved performance.
  • the prior art discloses an air purifying device for a cabin and comprising in parallel an array of circular ionisers each with a centrally disposed corona discharge tip.
  • WO 2013/080078 discloses apparatus with conductive strip for dust removal.
  • the conductive strip comprises points, which, on application of a voltage generate a corona and, what is described as, an ion wind. Particles from an exhaust are thereby charged and deposited onto the counter electrode and hence the exhaust air is cleaned.
  • EP-A1-3 056 364 discloses a vehicle with an ionising unit for cleaning air to cabin.
  • a device comprising an ionisation system for purifying the air of a substantially enclosed space, said system comprising an emitting electrode and a receiving electrode, the emitting electrode comprising a plurality of corona discharge points, the system further comprising a filter medium adapted to entrain charged particles which have passed through the ionisation system.
  • substantially enclosed space is meant a cabin, for example of a car or other motor vehicle, an office or a dwelling place.
  • the device according to the invention is capable of filtering our smaller particles much more efficiently than the prior art ioniser systems.
  • the ionisation system of the invention generates an ion field in use that is more able to charge the particles passing through it in the air flow.
  • the corona generated on application of a voltage to the emitter may be positive or negative. More preferably, the voltage applied to the emitting electrode is between 9 and -9 kV DC, more preferably from 7 to -7 kV DC.
  • air flow is meant the flow of air that passes through the device in use.
  • the air flow may be actively generated in that it is driven by a fan or other such air displacement means, or it is passive in that it is generated by way of the air being directed through the filter while a vehicle comprising such a device is being driven.
  • the air flow may also be driven by a vehicle's air conditioning system.
  • the emitting electrode is in the form of a blade having opposing top and bottom surfaces and opposing edges joining the opposing top and bottom surfaces, at least some of the corona discharge points being disposed on one of said edges.
  • blade By blade is meant a flattened and elongate structure having opposing faces and edges.
  • the blade therefore has a length axis, a breadth axis and a depth axis.
  • the emitting electrode comprises a first array of corona discharge points and a second array of corona discharge points pointing in opposite directions to one another.
  • the emitting electrode comprises a pair of opposing sets of corona discharge points.
  • the ionisation system is electrically configured such that the resulting ion field extends towards the air entering the system, i.e. it is concave with respect to the emitting electrode(s).
  • the corona discharge is shaped to be behind the ionisation system with respect to the airflow.
  • the emitting electrode comprises a pair of opposing arrays of corona discharge points they will product opposing ion fields.
  • the blade and receiving electrode may be disposed such that the depth axis of the emitting electrode points substantially towards the receiving electrode or the closest receiving electrode should there be more than one.
  • the blade and receiving electrode are disposed such that the breadth axis of the emitting electrode points substantially towards the receiving electrode or the closest receiving electrode should there be more than one.
  • the filter medium is a non-woven medium and is configured to attract particles charged by the ionisation system.
  • a vehicle comprising a device according to the second aspect of the invention.
  • a vehicle is preferably an automobile or similar such motor driven vehicle.
  • EP-A-3 205 520 (Volvo) describes a suitable HVAC system into which the invention may be suitably incorporated.
  • an inhabitable dwelling comprising a device according to the first aspect of the invention.
  • an air purifying device comprising a filter and ionisation system according to the first aspect, and a fan, a power source and a housing.
  • the device comprises a filter disposed such that the air passes through the ionisation system before it passes through the filter.
  • Figure 1 shows a device with a centrally disposed emitting electrode (3) and a pair of receiving electrodes (2a) and (2b).
  • the emitting electrode (3) has corona discharge tips (4a) and (4b) pointing towards the receiving electrodes (2a) and (2b).
  • Figure 2 shows the same device seen from the end along cross section A-A' in Figure 1 .
  • Seen are the receiving electrodes (2a) and (2b) and the central blade emitting electrode (3).
  • Figure 3 shows an emitting electrode in the form of a blade (3) and which has corona tips (4a and 4b) extending in opposition directions.
  • Figure 4 shows a pair of receiving electrodes (2a and 2b) and a centrally disposed emitting electrode with corona points (4a and 4b) pointing towards the receiving electrodes (2a and 2b).
EP18207052.4A 2018-11-19 2018-11-19 Ioniseur Withdrawn EP3654465A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP18207052.4A EP3654465A1 (fr) 2018-11-19 2018-11-19 Ioniseur
EP19801927.5A EP3884551A1 (fr) 2018-11-19 2019-11-19 Unité d'ionisation servant à charger négativement des particules en suspension dans l'air présentes dans un flux d'air, dispositif de purification d'air et dispositif adapté à un véhicule
PCT/EP2019/081856 WO2020104488A1 (fr) 2018-11-19 2019-11-19 Unité d'ionisation servant à charger négativement des particules en suspension dans l'air présentes dans un flux d'air, dispositif de purification d'air et dispositif adapté à un véhicule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18207052.4A EP3654465A1 (fr) 2018-11-19 2018-11-19 Ioniseur

Publications (1)

Publication Number Publication Date
EP3654465A1 true EP3654465A1 (fr) 2020-05-20

Family

ID=64362441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18207052.4A Withdrawn EP3654465A1 (fr) 2018-11-19 2018-11-19 Ioniseur

Country Status (1)

Country Link
EP (1) EP3654465A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2595908A (en) * 2020-06-11 2021-12-15 Edwards Ltd Electrostatic precipitator

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03204563A (ja) * 1989-12-28 1991-09-06 Rinnai Corp 空気調和機
EP1547693A1 (fr) * 2003-06-05 2005-06-29 Daikin Industries, Ltd. Appareil de decharge et appareil de purification d'air
EP2309198A1 (fr) * 2008-06-24 2011-04-13 Daikin Industries, Ltd. Dispositif de ventilation
WO2013080078A2 (fr) 2011-11-29 2013-06-06 Dpir Ltd Appareil, module, dispositif et procédé pour cisailler des objets
EP3056364A1 (fr) 2015-02-11 2016-08-17 Blue Air AB Véhicule avec unité ionisante pour le nettoyage de l'air de la cabine
EP3205520A1 (fr) 2016-02-11 2017-08-16 Volvo Car Corporation Agencement d'alimentation en air

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03204563A (ja) * 1989-12-28 1991-09-06 Rinnai Corp 空気調和機
EP1547693A1 (fr) * 2003-06-05 2005-06-29 Daikin Industries, Ltd. Appareil de decharge et appareil de purification d'air
EP2309198A1 (fr) * 2008-06-24 2011-04-13 Daikin Industries, Ltd. Dispositif de ventilation
WO2013080078A2 (fr) 2011-11-29 2013-06-06 Dpir Ltd Appareil, module, dispositif et procédé pour cisailler des objets
EP3056364A1 (fr) 2015-02-11 2016-08-17 Blue Air AB Véhicule avec unité ionisante pour le nettoyage de l'air de la cabine
EP3205520A1 (fr) 2016-02-11 2017-08-16 Volvo Car Corporation Agencement d'alimentation en air

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2595908A (en) * 2020-06-11 2021-12-15 Edwards Ltd Electrostatic precipitator

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