| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for mounting a liq. level sensor capable of preventing the malfunction of the liq. level sensor by contriving a dispose means of the liq. level sensor to a circulating water tank, etc., of a scrubber. SOLUTION: A replenishing water tank 11 having an injection port 13 of new replenishing water at the upper part is disposed at the outside of a main tank 2 of the circulating water tank, etc., of the scrubber. The bottom part in the replenishing water tank 11 and the bottom part in the main tank 2 are communicated. The liq. level sensor 12 for detecting the water level in the replenishing water tank 11 is provided at the replenishing water tank 11. The inside of the replenishing water tank 11 is kept in the fresh water state having no dirt, and the liq. level sensor 12 in the replenishing water tank 11 always actuates accurately without being soiled by sewage and the malfunction the new replenishing water is introduced to the main tank 2 from the injection port 13 through the inside of the replenishing water tank 11.
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