EP1374648A1 - Ballast pour emetteur de rayonnement u.v., procede et dispositif de sterilisation des eaux - Google Patents

Ballast pour emetteur de rayonnement u.v., procede et dispositif de sterilisation des eaux

Info

Publication number
EP1374648A1
EP1374648A1 EP02730043A EP02730043A EP1374648A1 EP 1374648 A1 EP1374648 A1 EP 1374648A1 EP 02730043 A EP02730043 A EP 02730043A EP 02730043 A EP02730043 A EP 02730043A EP 1374648 A1 EP1374648 A1 EP 1374648A1
Authority
EP
European Patent Office
Prior art keywords
heating
khz
ballast
radiator
gas discharge
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
EP02730043A
Other languages
German (de)
English (en)
Other versions
EP1374648B1 (fr
Inventor
Dirk Riepe
Jan Boris Rudkowski
Joachim Fischer
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.)
Wedeco AG
Original Assignee
Wedeco AG
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 Wedeco AG filed Critical Wedeco AG
Publication of EP1374648A1 publication Critical patent/EP1374648A1/fr
Application granted granted Critical
Publication of EP1374648B1 publication Critical patent/EP1374648B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2988—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the lamp against abnormal operating conditions

Definitions

  • the present invention relates to a ballast with the features of the preamble of claim 1 and a method and an apparatus for disinfecting water.
  • a generic ballast is known from DE 196 37 906 AI.
  • the connected radiator is operated at a frequency of approximately 20 kHz to 50 kHz, while the conventional ballasts operate at the mains frequency of 50 Hz.
  • two connecting cables are routed to each heating coil of the connected gas discharge lamp. The heating applied to the coil with a heating voltage which causes the coil to heat up. As soon as the temperature is high enough to allow electrons to emerge from the surface, the gas discharge is triggered by a high-voltage pulse. The heating voltage is switched off and a connecting line of each heating filament is supplied with the operating voltage of the gas discharge lamp. Switching between heating voltage and operating voltage takes place in the generic ballast with semiconductors. In operation, only one line per coil is energized so that the other line is open. The power of the connected UV lamp is regulated with pulse width modulation.
  • a quick start circuit for fluorescent lamps is known from W098 / 24277, which can be combined with conventional chokes as well as with the electronic ballasts common in this technical field. Both techniques require a series resonant circuit with a choke in the lamp supply line, which also causes the current to be limited. In the case of such circuits, the feed current applied to the lamps is essentially sinusoidal. These ballasts and quick starters are always located in the immediate vicinity of the lights. Problems with the cable length between the ballast and the luminaire are not relevant here.
  • ballast with the features of claim 1 and by a device with the features of claim 5 and a method for operating a wastewater or drinking water disinfection system with the features of claim 8.
  • the connecting lines can be at almost any potential. Relays are also not critical with regard to their transient response.
  • relays closed in the idle state in such a way that the at least one relay causes the parallel connection in the idle state allows the relay and the control to be load-free during operation.
  • the component effort is minimized if a fourfold changeover relay is provided for every two radiators.
  • the UV radiation being generated by at least one lamp of the type of a gas discharge lamp with two heating filaments lying opposite one another with respect to a gas discharge path, a total of four for each such lamp electrical connections leading from a ballast to the radiator are provided, namely two are provided for each heating coil of the radiator, that before the radiator is ignited, the two connecting cables leading to each heating coil are supplied with a heating voltage and after the ignition and in operation, the two connecting leads leading to each heating coil are electrically connected in parallel, the distance between the respective ballast and the UV lamps can be as large as desired.
  • the connecting lines between the ballast and the radiator can have a length of at least eight meters, in particular more than 15 meters.
  • the load on the ballast in the device is reduced if a capacitor is connected in parallel to each heating coil.
  • the UV radiation from at least one lamp of the type of a gas discharge lamp with two heating filaments opposite one another with respect to a gas discharge path is detected. is produced, with a total of at least four electrical connecting lines between a ballast and the radiator being provided for each such radiator, namely two lines for each heating coil of the radiator, and with the operating voltage for the UV radiators having a frequency of 10 kHz to 100 kHz, in particular between 20 kHz and 50 kHz, the following steps are provided:
  • the relays used can be dimensioned relatively small if they are always switched to be load-free, in particular the heating voltage, the ignition voltage and the operating voltage are not applied to the connecting lines during a switching operation of the relay.
  • the electrical power supplied to the heating coils is gradually increased for heating, thus limiting the normally high inrush current for cold heating coils.
  • the power is preferably increased by means of pulse width modulation or power limitation.
  • the radiators for operation electrical output must be reduced compared to normal operation and then increased so that the operating parameters of the system can be achieved gradually and without peak loads on the individual components.
  • Fig. 1 a schematic circuit of a UV lamp in the new device with the new ballast.
  • FIG. 1 shows a simplified circuit diagram to illustrate the present invention.
  • a UV lamp 1 is connected to a ballast 3 via a four-wire connecting line 2.
  • the ballast 3 contains a heating voltage source 4, an operating and ignition voltage source 5, a double changeover relay 6 shown in its rest position (NC) and two capacitors 7.
  • a controller 10 controls the parameters of the voltages and currents emitted by the voltage supplies 4 and 5 and the relay 6 during operation.
  • the emitted voltages and currents are emitted to the relay 6 via lines 11 of the heating voltage source 4 and lines 12 of the operating and ignition voltage sources 5 and from there, depending on the switching state of the relay 6, to two coils 13.
  • the relay 6 is first supplied with current, so that it picks up and connects the filament 13 to the heating voltage source 4 via the lines 11.
  • the controller 10 slowly increases the output current of the heating voltage source 4 to the nominal value and heats the coil 13.
  • the control 10 also causes the operating and ignition voltage source 5 to give an ignition pulse via the lines 12 to the coil 13, so that the gas discharge is ignited.
  • the operating voltage is already present via the lines 12 and is initially kept at low power in the manner of a dimmer.
  • the relay 6 drops out and in each case connects the lines 2 leading to a coil 13 in parallel.
  • the capacitors 7 smooth out any voltage peaks that may occur.
  • the high-frequency operating voltage is then guided to both sides of the coil 13.
  • the branch of the lines initially connected to the heating voltage supply 4 is then not open.
  • the power of the radiator 1 is raised to the nominal value. Commissioning of the radiator 1 is now complete.
  • Relay 6 can be designed as a four-way changeover relay, in particular when two emitters are supplied with one ballast, so that the circuit remains simple.
  • the parallel connection of the lines 2 each leading to a coil 13 can take place with any switching means.
  • the new ballast preferably has relays for connecting the connecting lines in parallel during operation, which has several advantages over the current circuit.
  • the new circuit logic now connects the coils to the heating circuit by means of relays, and during operation the two heater leads on each side of the coil are short-circuited on the ballast. This results in operation on two parallel connection lines and the power is distributed symmetrically on these. As a result, there is no longer an open line and the repercussions of the high-frequency operating voltage on the individual circuit parts are minimized. In practice, cable lengths of over 50m are possible.
  • the heating process is characterized in that the heating current can only increase slowly due to the slow increase in the pulse width by means of digital control of the primary side of the main transformer.
  • the internal resistance is the lowest. Since the source resistance of the heating circuit is very low, a very high initial current would flow without this control.
  • the logic is very suitable for relay operation because the digital control logic enables the relays to be switched on independently. This means that the relay is switched shortly before the output stage switches on the heating current. The pick-up time of the relay is taken into account. This avoids current flow at the contacts at the moment of switching, which contributes significantly to the relay service life. If the emitters have ignited, the power is limited to such an extent that the emitter current is kept below the nominal current despite the very low-impedance condition of the emitter. When the relay is opened, this lamp current is divided between the two sides of the coil and only loads the relays to a small extent. A capacitor over the heating coils ensures a gentle transition.
  • the digital control of the entire ballast combines ignition, preheating and normal operation. All parameters such as preheating time, preheating current and ignition are matched to the heater in the control software.
  • the heating logic is optimized for the special application with UV amalgam lamps of high power, in which the operating voltage for the UV lamps has a frequency of 10 kHz to 100 kHz, in particular between 20 kHz and 50 kHz.
  • These low-pressure mercury lamps have very low-impedance filaments and therefore cannot be compared with filaments as they are known from lighting technology.
  • the heating current is approx. 3 A.
  • connection lines with more than four wires instead of a four-core connection line, connection lines with more than four wires, in particular also with eight wires, can be used. According to the The technical features mentioned above are then connected in parallel for each coil four lines during operation. As a result, the characteristic impedance of the connecting lines is better adapted to the requirements existing with long connecting lines.

Landscapes

  • Physical Water Treatments (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

L'invention concerne un nouveau ballast conçu pour préchauffer, allumer et faire fonctionner au moins un émetteur de rayonnement U.V. du type lampe à décharge. Ce ballast comprend deux filaments de chauffage situés à l'opposé par rapport à une voie de décharge gazeuse. Chaque émetteur de rayonnement de ce type comporte au total quatre connexions électriques, à savoir deux connexions chacun pour chaque filament de chauffage. Des dispositifs de commutation servent au montage en parallèle de chacune des deux connexions d'un filament de chauffage, lequel montage dépend de l'état de fonctionnement. On évite ainsi une charge capacitive du ballast par la ligne de branchement ouverte des filaments de chauffage et l'alimentation en courant des filaments est répartie de manière uniforme.
EP02730043A 2001-03-21 2002-03-21 Ballast pour emetteur de rayonnement u.v., procede et dispositif de sterilisation des eaux Expired - Lifetime EP1374648B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10113903 2001-03-21
DE10113903A DE10113903A1 (de) 2001-03-21 2001-03-21 Vorschaltgerät für UV-Strahler sowie Verfahren und Vorrichtung zur Desinfektion von Wässern
PCT/EP2002/003203 WO2002076153A1 (fr) 2001-03-21 2002-03-21 Ballast pour emetteur de rayonnement u.v., procede et dispositif de sterilisation des eaux

Publications (2)

Publication Number Publication Date
EP1374648A1 true EP1374648A1 (fr) 2004-01-02
EP1374648B1 EP1374648B1 (fr) 2006-10-25

Family

ID=7678481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02730043A Expired - Lifetime EP1374648B1 (fr) 2001-03-21 2002-03-21 Ballast pour emetteur de rayonnement u.v., procede et dispositif de sterilisation des eaux

Country Status (10)

Country Link
US (1) US6906468B2 (fr)
EP (1) EP1374648B1 (fr)
JP (1) JP4243650B2 (fr)
KR (1) KR20030007665A (fr)
AU (1) AU2002302455B2 (fr)
CA (1) CA2409380C (fr)
DE (2) DE10113903A1 (fr)
ES (1) ES2272713T3 (fr)
NZ (1) NZ522283A (fr)
WO (1) WO2002076153A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1977978B (zh) * 2005-12-01 2011-07-06 福建新大陆环保科技有限公司 一种开放式水渠辐射消毒系统
KR100732197B1 (ko) * 2006-05-26 2007-06-25 한국전기연구원 하수종말처리장의 ｕｖ 램프 안정기 시스템
NL2007337C2 (nl) * 2011-09-02 2013-03-05 Nedap Nv Voorschakelapparaat voor een gasontladingslamp.
DE102016120672B4 (de) * 2016-10-28 2018-07-19 Heraeus Noblelight Gmbh Lampensystem mit einer Gasentladungslampe und dafür angepasstes Betriebsverfahren

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2151906A1 (de) * 1971-10-19 1973-04-26 Bellmer Geb Kg Maschf Stoffauflauf fuer papiermaschinen
JPS54103273A (en) * 1978-01-31 1979-08-14 Kouji Sakuma Portable cleaner
US5047696A (en) * 1982-12-16 1991-09-10 Nilssen Ole K Power-limited ceiling lighting system
US4972126A (en) * 1985-05-09 1990-11-20 Nilssen Ole K Ballasting system for fluorescent lamps
JPS6484598A (en) * 1987-09-26 1989-03-29 Matsushita Electric Works Ltd Discharge lamp lighting device
JPH06111964A (ja) * 1992-09-29 1994-04-22 Toshiba Lighting & Technol Corp 始動回路、放電灯点灯装置および照明器具
DE4303595A1 (de) * 1993-02-08 1994-08-11 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum Betrieb einer Leuchtstofflampe
DE19522675A1 (de) 1995-06-22 1997-01-02 Eckerle Ind Elektronik Gmbh Schaltungsanordnung zur Zündung einer Leuchtstofflampe
DE19637906C2 (de) * 1995-09-18 2000-07-27 Wedeco Umwelttechnologie Wasser Boden Luft Gmbh Elektronisches Vorschaltgerät für UV-Strahler
WO1997023119A1 (fr) 1995-12-19 1997-06-26 Kabushiki Kaisha Koseijapan Dispositif electronique de commande de lampe a decharge
DE19619022C2 (de) * 1996-05-10 2000-07-06 Karl F Massholder Wassertankanordnung
JP3907755B2 (ja) * 1996-11-20 2007-04-18 レシップ株式会社 蛍光灯点灯回路
IL119678A (en) * 1996-11-24 2000-02-17 Jbp Technologies Ltd Method and starter and control circuits for igniting and operating discharge lamps
JP3858317B2 (ja) 1996-11-29 2006-12-13 東芝ライテック株式会社 放電灯点灯装置及び照明装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02076153A1 *

Also Published As

Publication number Publication date
EP1374648B1 (fr) 2006-10-25
DE50208546D1 (de) 2006-12-07
AU2002302455B2 (en) 2006-03-16
WO2002076153A1 (fr) 2002-09-26
CA2409380C (fr) 2011-10-18
US20030132717A1 (en) 2003-07-17
NZ522283A (en) 2004-09-24
US6906468B2 (en) 2005-06-14
JP4243650B2 (ja) 2009-03-25
ES2272713T3 (es) 2007-05-01
JP2004518535A (ja) 2004-06-24
CA2409380A1 (fr) 2002-11-15
KR20030007665A (ko) 2003-01-23
DE10113903A1 (de) 2002-09-26

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