| 摘要 |
PROBLEM TO BE SOLVED: To estimate the intensity of gas flowing in the circumferential direction in a furnace and whether or not the leakage of cooling water in the furnace is developed by arranging gas sampling holes of a specified number or more at prescribed intervals in the circumferential direction of the upper side wall in the furnace and analyzing the gas compositions in samples. SOLUTION: The gas sampling holes are arranged at >=4 points, desirably, 8 points from the view point of the detection of the water leakage. In the case of promoting the gas flowing in a prescribed direction in the circumferential direction of the furnace, carbon dioxide concn. and steam concn. in the gas are lowered and carbon monoxide concn. and hydrogen concn. are raised. The intensity of the gas flowing in the circumferential direction can be estimated by continuously measuring the gas composition. In the case of leaking the cooling water in the furnace, the water is reacted with the high temp. contents or gas to generate hydrogen. This direction can be decided by measuring the hydrogen concn. In the case of raising only the hydrogen concn. and changing not so large gas realizing ratio of the carbon monoxide, it can be decided that the water leakage is developed in this direction.
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