WO2001056126A1 - Appareil aeraulique - Google Patents

Appareil aeraulique Download PDF

Info

Publication number
WO2001056126A1
WO2001056126A1 PCT/ZA2001/000005 ZA0100005W WO0156126A1 WO 2001056126 A1 WO2001056126 A1 WO 2001056126A1 ZA 0100005 W ZA0100005 W ZA 0100005W WO 0156126 A1 WO0156126 A1 WO 0156126A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
moving apparatus
plate
fluid moving
needle
Prior art date
Application number
PCT/ZA2001/000005
Other languages
English (en)
Inventor
Berend Visser
Ockert Cornelis De Jager
Original Assignee
Potchefstroom University For Christian Higher Education
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 Potchefstroom University For Christian Higher Education filed Critical Potchefstroom University For Christian Higher Education
Priority to AU37073/01A priority Critical patent/AU3707301A/en
Publication of WO2001056126A1 publication Critical patent/WO2001056126A1/fr

Links

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
    • H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere

Definitions

  • THIS invention relates to fluid moving apparatus, more particularly to an air
  • Air moving apparatus including moving parts such as pumps and fans are
  • a fluid moving apparatus comprising:
  • a pulse generator for generating pulses intermittently to ionize
  • the fluid is preferably air.
  • the pulse generator in use generates short pulses with short rise times.
  • the means for accelerating the ions may comprise first and second electrodes
  • a DC source is preferably
  • the pulse generator is preferably also connected to the first electrode.
  • the fluid moving apparatus may comprise a housing defining an inlet for the
  • the first electrode may comprise a plurality of corona needles located in the housing and the second electrode may comprise a fluid
  • the fluid permeable member may be any fluid permeable member provided at the outlet.
  • the fluid permeable member may be any fluid permeable member provided at the outlet.
  • the pulse generator may comprise a capacitor for each needle and means
  • a first plate of the capacitor may be connected to the DC source and the
  • means for discharging the capacitor may comprise a discharge gap defined
  • the first plate and a second plate of the capacitor are preferably formed on
  • first and second opposed faces of a dielectric material first and second opposed faces of a dielectric material.
  • One end of the needle may be connected to the second plate of the
  • capacitor and the needle may loop about an edge of the dielectric material
  • the needles may be arranged in parallel rows and columns.
  • the housing may be in the form of a tube defining the inlet at one end thereof and the outlet at an opposite end thereof.
  • the tube is preferably circular in transverse cross section and the first
  • Electrode may comprise a ring mounted co-axially in the tube.
  • the tube may be of a conductive material and the second electrode may be
  • At least part of an inner wall of the tube may be cladded with a dielectric
  • Also included within the scope of the invention is a method of moving a
  • figure 1 is a diagrammatic perspective view from a front end of a first
  • figure 2 is a similar diagram from a rear end
  • figure 3 is a diagrammatic representation of one corona needle
  • figure 4 is a circuit diagram of the needle and associated circuitry
  • figure 5 is a graph of voltage at the needle tip and ionization rate
  • figure 6 is a diagrammatic perspective view of a second embodiment of
  • the air moving apparatus which comprises a corona ring
  • figure 7 is a graph of voltage on the ring and ionization rate against
  • the invention is generally designated by the reference numeral 1 0 in figure
  • the apparatus compriso ⁇ a metal housing 1 2 having a front wall formed by
  • the mesh is in electrical contact with the housing
  • the housing defines an open back 1 6 (shown in figure 2) opposite the
  • the housing 1 2 houses a plurality of corona needles, the needles being
  • the needles are hence designated 1 8.1 1 to 1 8.1 m 1 8.n 1 to 1 8.nm.
  • each column of needles is mounted on a
  • Each needle is secured to the substrate in that it is soldered at one end
  • a second electrode in the form of a cathode is constituted by
  • the housing is connected to ground potential of a high
  • DC voltage direct current
  • the terminals would depend on the size and configuration of the apparatus.
  • a typical voltage used in a prototype of the apparatus is about 21 kV.
  • the pulse duration is in the order of a length of the needle
  • pulse also has a steep edge with a rise time t r shorter than the pulse
  • the pulse 40 propagates in the needle to cause corona discharge
  • ozone 0 3 are as a result generated.
  • the ozone serves to disinfect the
  • the voltage between the needle and the cathode is below a lower limit value
  • each pulse triggers a burst of corona
  • the apparatus 50 comprises an electricity conductive tube 52 defining an inlet 53 for a fluid and an outlet 54 for the fluid. A part of the tube
  • a corona discharge electrode comprising a ring 60 mounted
  • the signal 64 has an average value 66 which

Landscapes

  • Elimination Of Static Electricity (AREA)

Abstract

Appareil aéraulique (10) comprenant un générateur d'impulsions pour l'ionisation intermittente de l'air, ce qui entraîne la formation d'ions. Un champ électrique à courant continu entre une première et une seconde électrodes (18, 14) accélère les ions, ce qui provoque le déplacement d'air en direction de la seconde électrode (14) et à travers celle-ci.
PCT/ZA2001/000005 2000-01-27 2001-01-26 Appareil aeraulique WO2001056126A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU37073/01A AU3707301A (en) 2000-01-27 2001-01-26 Air moving apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2000/0361 2000-01-27
ZA200000361 2000-01-27

Publications (1)

Publication Number Publication Date
WO2001056126A1 true WO2001056126A1 (fr) 2001-08-02

Family

ID=25588601

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2001/000005 WO2001056126A1 (fr) 2000-01-27 2001-01-26 Appareil aeraulique

Country Status (2)

Country Link
AU (1) AU3707301A (fr)
WO (1) WO2001056126A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005003638A1 (fr) * 2003-07-08 2005-01-13 Wei Wang Assainisseur d'air electronique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1411078A (fr) * 1964-07-07 1965-09-17 Mitsubishi Electric Corp Dispositif générateur d'ions
US3742301A (en) * 1972-05-11 1973-06-26 W Burris Corona generator
FR2227017A1 (en) * 1973-04-24 1974-11-22 Gouttebessis Rene Air purificn. appts. for rooms - using discharge tube producing ozone with excess of negative ions
US4227894A (en) * 1978-10-10 1980-10-14 Proynoff John D Ion generator or electrostatic environmental conditioner
US5484472A (en) * 1995-02-06 1996-01-16 Weinberg; Stanley Miniature air purifier

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1411078A (fr) * 1964-07-07 1965-09-17 Mitsubishi Electric Corp Dispositif générateur d'ions
US3742301A (en) * 1972-05-11 1973-06-26 W Burris Corona generator
FR2227017A1 (en) * 1973-04-24 1974-11-22 Gouttebessis Rene Air purificn. appts. for rooms - using discharge tube producing ozone with excess of negative ions
US4227894A (en) * 1978-10-10 1980-10-14 Proynoff John D Ion generator or electrostatic environmental conditioner
US5484472A (en) * 1995-02-06 1996-01-16 Weinberg; Stanley Miniature air purifier
US5484472C1 (en) * 1995-02-06 2001-02-20 Wein Products Inc Miniature air purifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005003638A1 (fr) * 2003-07-08 2005-01-13 Wei Wang Assainisseur d'air electronique

Also Published As

Publication number Publication date
AU3707301A (en) 2001-08-07

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