What is the good way to reduce the damage of the heat transfer oil heat exchanger?

- Sep 29, 2018-

What is the good way to reduce the damage of the heat transfer oil heat exchanger?


The heat transfer oil heat exchanger is excited by the flow perpendicular to the tube axis (called lateral flow I). The lateral flow can cause a large amplitude under normal conditions, which is very harmful to the heat exchanger tube.


1) Reduce the shell line speed. When the flow boy cannot be changed, increase the tube center distance or increase the shell diameter.


2) To increase the natural frequency of the pipe, an effective method is to shorten the unsupported maximum span length of the pipe or change the pipe material and increase the wall thickness, but the effect is not as remarkable as the method 1).


3) Change the baffle form or use the baffle bar to change the arrangement of the tubes under the premise of meeting the heat transfer and pressure drop.


4) Increase the diameter of the take-up when the take-up occurs.