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Method for operating an amalgam lamp

A kind of amalgam lamp and amalgam technology, applied in the parts of gas discharge lamps, discharge lamps, gas discharge lamps, etc., can solve the problems of instability

Active Publication Date: 2012-12-05
EXCELITAS NOBLELIGHT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The system therefore cannot be kept stably at the optimum operating point, e.g. at a mercury vapor pressure of 0.8 Pa

Method used

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  • Method for operating an amalgam lamp
  • Method for operating an amalgam lamp
  • Method for operating an amalgam lamp

Examples

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Effect test

example 1

[0053] The amalgam lamp 21 with a nominal power of 800 W is operated in the "constant power" operating mode by means of a power-regulated ballast.

[0054] Nominal operating current in circuit "B" drops from 7.2A to I 额定 =7.0A and the nominal voltage increases accordingly. This lowers the temperature of the electrode 5 a and thus also of the amalgam store 6 , so that the mercury concentration in the discharge chamber 8 decreases and thus the efficiency of the UVC radiation decreases slightly.

[0055] In return, however, a stable operation of the amalgam lamp 21 results. This is achieved by providing an additional adjustment mechanism for adjustment, but also with a heating current "I" that can be conducted by the helical electrode 5a via circuit "A" 加热 ” form. This heating current leads to an increase in the temperature of the electrode 5 a and thus to an additional temperature increase of the amalgam store 6 arranged in the vicinity of the electrode 5 a.

[0056] As soon ...

example 2

[0058] In an equivalent operating mode, the operating voltage is referred to instead of the operating current. In this case, the amalgam lamp 21 with a nominal power of 800 W is also operated in the "constant power" operating mode by means of a power-regulated ballast.

[0059] The nominal operating voltage of 112V is boosted to U 额定 =115V value and the nominal current "I" in circuit "B" 额定 ” is correspondingly reduced. As a result, the temperature of the electrode 5 a and thus also the temperature of the amalgam store 6 is reduced, so that the mercury concentration in the discharge chamber 8 decreases and thus the efficiency of the UVC radiation decreases slightly.

[0060] In return, however, a stable operation of the amalgam lamp 21 results. This is achieved by providing an additional adjustment mechanism for adjustment, but also with a heating current "I" that can be conducted by the helical electrode 5a via circuit "A" 加热 ” form. This heating current leads to an increa...

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Abstract

In a known method for operating an amalgam lamp with a rated power Poptimum, provision is made for a lamp voltage Uoptimum suitable for maximum UVC emission to be applied or for a lamp current Ioptimum suitable for maximum UVC emission to flow between electrodes, wherein the discharge space is accessible to an amalgam deposit which can be heated by means of a heating element by conducting a heating current IHeiz through the heating element. In order to specify, on this basis, an operating mode which ensures stable operation in the range of the power optimum, the invention proposes setting a setpoint value for the lamp current Isoll which is lower than Ioptimum, and switching on or increasing the heating current IHeiz when the lamp current drops below a lower limit value I1 while switching off or reducing said heating current when the lamp current exceeds an upper limit value I2.

Description

technical field [0001] The invention relates to a device for operating with a nominal power P 标称 A method for an amalgam lamp having a gas-filled discharge chamber in which a lamp voltage U designed for the maximum value of the UVC emission is applied between the electrodes 最佳值 or flow a lamp current I designed to be the maximum value of the UVC emission 最佳值 , wherein the discharge chamber is accessible for the amalgam deposit, which can be heated by means of a heating element by conducting a heating current I through the heating element 加热 . Background technique [0002] In an amalgam lamp, mercury in the form of a solid amalgam alloy is introduced into the discharge vessel. The incorporation of mercury in the amalgam is opposed to the release into the discharge chamber. This enables higher operating currents (and higher temperatures), enabling three to six times higher power and power densities than conventional mercury low-pressure lamps. [0003] The mode of operati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/28H01J61/52H01J61/72H05B41/39H05B41/298
CPCH01J61/28H01J61/523H01J61/72
Inventor A.福罗诺夫
Owner EXCELITAS NOBLELIGHT LTD
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