Nagano Conv. of JPI (52nd Petroleum-Petrochemical Symposium of JPI)

Presentation information

Refining equipment

[2D01-2D06] Refining equipment (4)

Fri. Oct 28, 2022 9:00 AM - 10:30 AM Room-D (12D Conf. room)

Chair:Satoru Okamoto(ENEOS Corp.)

9:15 AM - 9:30 AM

[2D02] Introduction of a cold water tower renewal project using the
uninterrupted water supply method during operation

○Shuta Tanaka1, Yuuji Kitano1 (1. Fuji Oil Company)

Keywords:uninterruptible branch crossing, Cold water tower, Inserting method

The main structure of the cold water tower, which is made of wood, was unable to withstand the wind loads caused by recent large typhoons due to decay and deterioration.
The main structure of the cold water tower, which is made of wood, was replaced with a steel-frame structure (hot-dip galvanized) because it was unable to withstand the wind loads caused by recent large typhoons due to decay and deterioration. Due to construction site constraints and a long construction period
Because of the limited construction site and the long construction period, the replacement work was carried out at the same location while the equipment was in operation. The following is an example of switching from the existing to the new plant while the plant was in operation, using the installation of a temporary cooling tower, the uninterrupted water branching method, and the inserting method.

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