The structure of the tube heat exchanger is simple, but maintenance during operation is very important, which is something that needs to be considered to increase its service life.
If the temperature difference between hot and cold media is large when the equipment is running, the structure is a rigid structure. During convection operation, the fluid with a large heat transfer coefficient passes through the shell side of the tube heat exchanger. If the flow rate of the fluid applied to the equipment is small and the viscosity is high, these fluids can be passed directly through the shell side of the tube heat exchanger.
If the temperature of the inlet and outlet of the hot fluid meets the relevant requirements, the outlet temperature and flow rate of the cooling medium can be controlled. Specific choices need to be made based on the actual situation. For example, if the outlet temperature is relatively high, then we need to choose a smallTube and tube heat exchanger, but the flow rate of the cooling medium needs to be increased accordingly; secondly, if the outlet temperature is relatively low, then a large tube heat exchanger needs to be selected and the flow rate of the cooling medium is correspondingly reduced. Therefore, when selecting, the specific cooling medium needs to be measured based on the outlet temperature.
The tubes are the most prone to problems with tube-and-tube heat exchangers. The medium washes and corrodes the tubes, causing the tubes to age. Therefore, the heat exchanger should be inspected frequently, and the medium needs to be inspected and filtered.