FR2237675A1 - Gas flow electrical discharge treatment - with reactor electrodes connected through switching circuit to rectified AC from transformer - Google Patents

Gas flow electrical discharge treatment - with reactor electrodes connected through switching circuit to rectified AC from transformer

Info

Publication number
FR2237675A1
FR2237675A1 FR7326323A FR7326323A FR2237675A1 FR 2237675 A1 FR2237675 A1 FR 2237675A1 FR 7326323 A FR7326323 A FR 7326323A FR 7326323 A FR7326323 A FR 7326323A FR 2237675 A1 FR2237675 A1 FR 2237675A1
Authority
FR
France
Prior art keywords
electrical discharge
switching circuit
rectified
transformer
gas flow
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.)
Granted
Application number
FR7326323A
Other languages
French (fr)
Other versions
FR2237675B1 (en
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.)
LE ELEKT
Original Assignee
LE ELEKT
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 LE ELEKT filed Critical LE ELEKT
Priority to FR7326323A priority Critical patent/FR2237675A1/en
Publication of FR2237675A1 publication Critical patent/FR2237675A1/en
Application granted granted Critical
Publication of FR2237675B1 publication Critical patent/FR2237675B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes
    • H01J37/32431—Constructional details of the reactor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J19/088—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/10—Preparation of ozone
    • C01B13/11—Preparation of ozone by electric discharge
    • C01B13/115—Preparation of ozone by electric discharge characterised by the electrical circuits producing the electrical discharge

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

Appts for electrical discharge treatment of a gas flow comprises a gas discharge slot reactor including electrodes separated by dielectric and a gas space, the electrodes being connected through a switching circuit to a rectified AC supply from a transformer, the switching circuit being controlled to alternately switch one of the electrodes so as to recharge the dielectric and gas space capacitances, and excite an electrical discharge in the gas space. For use e.g. as an ozone generator. Has reduced size, optimum shape of electrical discharge, does not require an additional DC source, has reduced power losses.
FR7326323A 1973-07-18 1973-07-18 Gas flow electrical discharge treatment - with reactor electrodes connected through switching circuit to rectified AC from transformer Granted FR2237675A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7326323A FR2237675A1 (en) 1973-07-18 1973-07-18 Gas flow electrical discharge treatment - with reactor electrodes connected through switching circuit to rectified AC from transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7326323A FR2237675A1 (en) 1973-07-18 1973-07-18 Gas flow electrical discharge treatment - with reactor electrodes connected through switching circuit to rectified AC from transformer

Publications (2)

Publication Number Publication Date
FR2237675A1 true FR2237675A1 (en) 1975-02-14
FR2237675B1 FR2237675B1 (en) 1977-09-09

Family

ID=9122772

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7326323A Granted FR2237675A1 (en) 1973-07-18 1973-07-18 Gas flow electrical discharge treatment - with reactor electrodes connected through switching circuit to rectified AC from transformer

Country Status (1)

Country Link
FR (1) FR2237675A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2303588A1 (en) * 1975-03-13 1976-10-08 Union Carbide Corp PROCESS AND APPARATUS FOR REACTION UNDER ELECTRICAL EFFLUVES
FR2338074A2 (en) * 1975-11-17 1977-08-12 Union Carbide Corp PROCESS AND APPARATUS FOR REACTION UNDER ELECTRICAL EFFLUVES
FR2423914A1 (en) * 1978-04-20 1979-11-16 Aizenshtein Anatoly Pulsed power supply system - is for discharge equipment for treating workpieces and prevents glow discharge passing over into damaging arc discharge
FR2471079A1 (en) * 1979-11-28 1981-06-12 Frager Jean Self stabilising current generator for discharge tube - has wave shaper, connected to rectifying circuit, whose frequency increases when current exceeds reference threshold value

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615841A (en) * 1948-07-08 1952-10-28 Air Reduction Ozone generation
US3432740A (en) * 1967-08-11 1969-03-11 Gen Electric Solid state power circuits
FR1600613A (en) * 1968-08-09 1970-07-27

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615841A (en) * 1948-07-08 1952-10-28 Air Reduction Ozone generation
US3432740A (en) * 1967-08-11 1969-03-11 Gen Electric Solid state power circuits
FR1600613A (en) * 1968-08-09 1970-07-27

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2303588A1 (en) * 1975-03-13 1976-10-08 Union Carbide Corp PROCESS AND APPARATUS FOR REACTION UNDER ELECTRICAL EFFLUVES
FR2338074A2 (en) * 1975-11-17 1977-08-12 Union Carbide Corp PROCESS AND APPARATUS FOR REACTION UNDER ELECTRICAL EFFLUVES
FR2423914A1 (en) * 1978-04-20 1979-11-16 Aizenshtein Anatoly Pulsed power supply system - is for discharge equipment for treating workpieces and prevents glow discharge passing over into damaging arc discharge
FR2471079A1 (en) * 1979-11-28 1981-06-12 Frager Jean Self stabilising current generator for discharge tube - has wave shaper, connected to rectifying circuit, whose frequency increases when current exceeds reference threshold value

Also Published As

Publication number Publication date
FR2237675B1 (en) 1977-09-09

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Legal Events

Date Code Title Description
ST Notification of lapse