Trapezoidal tilted baffle plate shell and tube type heat exchanger
A technology of shell-and-tube heat exchangers and baffles, which is applied to the types of heat exchangers, heat exchanger shells, indirect heat exchangers, etc., and can solve the problem of difficult production and complicated processing technology of continuous spiral baffle heat exchangers and other problems, to achieve the effect of reducing the pressure drop on the shell side, improving the heat transfer coefficient and comprehensive performance, and overcoming difficult processing
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Embodiment 1
[0029] This embodiment provides a trapezoidal inclined baffle shell-and-tube heat exchanger, including a shell, a heat exchange tube 1, a tube sheet, tie rods and a trapezoidal baffle 2, such as Figure 1~5 As shown, two adjacent sets of trapezoidal baffles 2 are arranged orthogonally, and two sets of trapezoidal baffles 2 are arranged in parallel, each group includes two parallel trapezoidal baffles 2, and the trapezoidal baffles The flow plate 2 corresponds to the heat exchange tube 1 with several holes 5 evenly distributed, the heat exchange tube 1 is arranged through the hole 5, the trapezoidal baffle 2 is arranged obliquely, and the trapezoidal baffle 2 and The included angle of the heat exchange tube 1 =45°, the schematic diagram of the flow state when the shell-side fluid flows through a set of trapezoidal baffles 2, such as Figure 9 As shown, after the shell-side fluid flows in one direction in one set of trapezoidal baffles 2, it flows in another direction after fl...
Embodiment 2
[0033] Such as Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that two sets of alternate trapezoidal baffles 2 are arranged symmetrically;
Embodiment 3
[0035] Such as Figure 8 As shown, the difference between this embodiment and the above-mentioned embodiment is that each group includes three trapezoidal baffles 2, and the distance between the trapezoidal baffles 2 in each group is , the quasi-trapezoidal baffles 2 in the middle of each group are cut from the two ends of the long axis by elliptical plates, and the height is The bow-shaped plate is made; the quasi-trapezoidal baffle plate 2 in the middle of each group is cut from the two ends of the long axis of the elliptical plate with a height of He Gaowei made of a segmented plate, where R is the radius of the shell and the major axis of the ellipse is , the minor axis is 2R.
[0036] In other embodiments, the difference from the above embodiments lies in: the included angle between the trapezoidal baffle plate 2 and the heat exchange tube 1 Can be set according to needs.
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