60. What impact does low cooling water pressure have on the work at this post, and how should it be handled?
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60. What impact does low cooling water pressure have on the work at this post, and how should it be handled?
During operation, the ambient temperature around the smoke exhaust fan is quite high; consequently, the temperature of the brackets on both sides also rises. This causes thermal expansion of the steel brackets, resulting in an elevation of the centerline of the fan shaft, which prevents the unit from functioning properly. After activating the cooling water system for the brackets, their temperature becomes relatively stable, thereby maintaining the elevation of all shaft centerlines of the unit.