External shell-and-tube heat exchanger and design method thereof
A technology of shell and tube heat exchanger and design method, which is applied in the direction of indirect heat exchanger, heat exchanger shell, heat exchanger type, etc., and can solve the problem of weak high pressure resistance, complicated process, and resistance of seawater to flow through plates Large and other problems, to achieve the effect of reducing resistance loss and reducing the flow field velocity gradient
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[0033] Example 1:
[0034] D=100mm, α=0.45, R=100mm, β=0.35, set the processing control accuracy to level 7, C=5, and get it according to the above formula
[0035] r=0.45*100+0.35*100+5=85
Example Embodiment
[0036] Example 2: D=150mm, α=0.40, R=200mm, β=0.25, set the machining control accuracy to 8 levels, and C=10, which is obtained according to the above formula
[0037] r=0.40*150+0.25*200+10=120
[0038] According to the minimum curvature radius r of the variable diameter surface in the collecting chamber obtained above, the design of the shell and tube heat exchanger can be realized.
[0039] Such as figure 1 , figure 2 As shown, a shell-and-tube heat exchanger designed by the method of the present invention includes a shell 4 with a fresh water inlet 401, a fresh water outlet 402, a tube plate 3, a heat exchange tube 6 and a baffle plate 7, and a tube plate 3. They are installed at both ends of the casing 4 respectively. A plurality of baffle plates 7 arranged at intervals are arranged radially inside the casing 4, and mounting holes are provided on each tube plate 3 and the baffle plate 7. The heat exchange tube 6 penetrates the installation hole of the baffle 7 in the radial d...
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