skip to main content

Title: Lamp for generating high power ultraviolet radiation

The apparatus is a gas filled ultraviolet generating lamp for use as a liquid purifier. The lamp is powred by high voltage AC, but has no metallic electrodes within or in contact with the gas enclosure which is constructed as two concentric quartz cylinders sealed together at their ends with the gas fill between the cylinders. Cooling liquid is pumped through the volume inside the inner quartz cylinder where an electrically conductive pipe spaced from the inner cylinder is used to supply the cooling liquid and act as the high voltage electrode. The gas enclosure is enclosed within but spaced from a metal housing which is connected to operate as the ground electrode of the circuit and through which the treated fluid flows. Thus, the electrical circuit is from the central pipe, and through the cooling liquid, the gas enclosure, the treated liquid on the outside of the outer quartz cylinder, and to the housing. The high voltage electrode is electrically isolated from the source of cooling liquid by a length of insulated hose which also supplies the cooling liquid.
Authors:
 [1] ;  [2]
  1. (Elkridge, MD)
  2. (Los Alamos, NM)
Publication Date:
OSTI Identifier:
873605
Report Number(s):
US 6201355
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Patent
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM
Country of Publication:
United States
Language:
English
Subject:
lamp; generating; power; ultraviolet; radiation; apparatus; gas; filled; ultraviolet; generating; lamp; liquid; purifier; lamp; powred; voltage; metallic; electrodes; contact; gas; enclosure; constructed; concentric; quartz; cylinders; sealed; gas; fill; cylinders; cooling; liquid; pumped; volume; inside; inner; quartz; cylinder; electrically; conductive; pipe; spaced; inner; cylinder; supply; cooling; liquid; voltage; electrode; gas; enclosure; enclosed; spaced; metal; housing; connected; operate; ground; electrode; circuit; treated; fluid; flows; electrical; circuit; central; pipe; cooling; liquid; gas; enclosure; treated; liquid; outside; outer; quartz; cylinder; housing; voltage; electrode; electrically; isolated; source; cooling; liquid; length; insulated; supplies; cooling; liquid; gas filled; electrically isolated; cooling liquid; cooling liquid; cooling liquid; cooling liquid; cooling liquid; inner cylinder; ultraviolet radiation; electrically conductive; fluid flow; electrical circuit; fluid flows; ground electrode; voltage electrode; voltage electrode; metal housing; electrically isolate; gas enclosure; gas enclosure; gas enclosure; outer quartz; metallic electrodes; gas fill; gas fill; metallic electrode /315/250/