Working principle
Heat transfer principle: heat and cold for heat transfer of two kinds of fluid, one in the pipe flow, known as pipe fluid;The other flow outside the tube is called shell - side fluid.In order to improve the heat transfer coefficient of the fluid outside the tube, several baffles are usually installed in the shell.
The baffle can increase the fluid velocity of the shell side, force the fluid to cross the tube bundle several times according to the prescribed route, and enhance the degree of fluid turbulence.
The heat exchange pipes can be arranged in equilateral triangle or square on the tube plate.The equilateral triangle has compact arrangement, high turbulence and high heat transfer coefficient.The square arrangement makes it convenient to clean the outside of the tube and is suitable for the fluid that is easy to scale.