At present, shell and tube heat exchanger is the most widely used heat exchanger Although shell and tube heat exchanger can’t compare with plate heat exchanger or fin heat exchanger in terms of compact structure, heat transfer intensity and metal consumption per unit heat transfer area, it has a wide range of operating temperature and pressure, low manufacturing cost, convenient cleaning, large processing capacity and reliable work.
The shell and tube heat exchanger made by our company includes cooler, heater and
condenser.
Shell and tube heat exchanger has the characteristics of:
1.good sealing performance,
2.elimination of leakage,
3.high heat exchange efficiency,
4.easy maintenance,
5.long corrosion life and so on.
The cooler consists of the following parts (see figure 1).Heat transfer principle: heat and
cold for heat transfer of two kinds of fluid, one in the pipe flow, known as pipe fluid;The otherflow 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.