Falling film evaporating pipe with netlike outer surface
A technology of falling film evaporation and outer surface, which is applied in the direction of tubular elements, lighting and heating equipment, heat exchange equipment, etc., can solve the problems of inability to perform heat exchange, thickening of the liquid film on the heat exchange surface, and reduced heat exchange effect, etc., to achieve Improve the surface evaporation heat transfer coefficient, uniform liquid film thickness, and avoid the effect of drying up
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[0020] Example: such as figure 1 As shown, the falling film evaporation heat exchange tube of this embodiment includes a tube body 1 with a central lumen, and the two ends of the tube body are light sections. After the end plates on both sides of the device, it can be tightly fixed with the end plates. The tubular body 1 is provided with a cavity 4 that is distributed in a spiral shape along the axial direction of the tubular body, with a height of 0.4-0.7 mm and a width of 0.3-0.6 mm (the height refers to the cavity in the figure 1 The length in the up and down direction, the width is the cavity in figure 1 length in the left-right direction). The outer surface of the tube body 1 is provided with a plurality of small holes 2 communicating with the cavity 4 .
[0021] In this embodiment, grid-like microchannels 3 are also provided on the outer surface of the tube body 1 . In this way, during work, part of the liquid sprayed onto the heat exchange tube body 1 will flow into...
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