The heat exchange tubes can be arranged in an equilateral triangle or square on the tube plate. The equilateral triangle arrangement is relatively compact, the fluid outside the tube has a high degree of turbulence, and the heat transfer coefficient is large; the square arrangement makes it easy to clean the outside of the tube and is suitable for fluids that are prone to fouling.
The position of the heat exchange tube vibration is wide, can be a certain two baffle between all the heat exchange tube vibration at the same time, or only a few rows of heat exchange tube vibration. It may also be in the medium inlet or outlet end of some heat exchange tube vibration. In short, the vibration of the heat exchange tube may occur in any one or more places of the heat exchange tube bundle.
Types of shell and tube heat exchanger
Vortex thermal film heat exchanger The vortex thermal film heat exchanger uses the latest vortex thermal film heat transfer technology to increase the heat transfer effect by changing the fluid motion state. When the medium passes through the surface of the vortex tube, the tube surface is strongly washed, thereby improving the exchange rate Thermal efficiency. Up to 10000W/m2℃. At the same time, this structure realizes the functions of corrosion resistance, high temperature resistance, high pressure resistance, and anti-fouling. The fluid channels of other types of heat exchangers are in the form of fixed-direction flow, forming a flow around the surface of the heat exchange tube, and the convective heat transfer coefficient is reduced.
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