Description
One tube sheet of the heat exchanger is connected to the shell with a flange, and the other tube sheet is not connected to the shell, so that the tube can expand and contract freely when heated or cooled, but a top cover is connected to this tube sheet, which is called " floating head", so this kind of heat exchanger is called floating head heat exchanger. The advantages are: the tube bundle can be pulled out for cleaning; the expansion of the tube bundle does not change the constraints of the shell, so when the temperature difference between the two heat exchanger media is large, there will be no temperature difference stress due to the difference in thermal expansion between the tube bundle and the shell.