| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a water treatment tank using a low pressure mercury lamp, in which the low pressure mercury lamp can be positioned and held at a predetermined position in a water cooling jacket by employing simple structure.SOLUTION: The water treatment tank using a low pressure mercury lamp is provided which includes at least one water cooling jacket arranged partially in the tank, and a low pressure mercury lamp inserted in the inside of the water-cooling tank and having bases at both end parts respectively. The base is positioned and captured by a base positioning and holding member having a base locking part for obstructing transfer in a lamp axial direction, of the base, a jacket pressing part for maintaining a contact state of the base with respect to the water cooling jacket, and a base capturing part for capturing the base.</p> |
