Shell and tube heat exchanger tube arrangement

The arrangement of tubes on the tube sheet mainly includes square arrangement and triangular arrangement. The triangular arrangement is conducive to the turbulent flow of the shell side fluid and the number of rows is also large. The square arrangement is conducive to the cleaning of the shell side. In order to make up for their respective shortcomings, a square arrangement rotated through a certain angle (that is, a transposed square arrangement) and a triangular arrangement with cleaning channels are produced.