| 摘要 |
PURPOSE:To secure substantially uniform drenched surfaces in the whole of the group of heat transfer tubes by a method wherein liquid dispersing members, having a multitude of outer peripheral grooves and an upper surface groove, are interposed at every predetermined stages of the heat transfer tube. CONSTITUTION:Liquid, introduced into a liquid distributor 1 through a pipe 2, is dispersed substantially uniformly on the heat transfer tube A1 through a plurarity of pores 5, 5... and flows down along the outer surface of the tube under forming liquid film, then, is dripped from the bottom of the tube A1 onto the heat transfer tube A2. The liquid, flowing down along the outer surface of the heat transfer tube, shows the tendency of coherence due to the affection of viscosity or surface tension, therefore, the number of dripping places of the liquid at the bottom of a lower stage heat transfer tube is smaller than the same of the upper stage heat transfer tube and the deviation of the dripping of liquid is generated. The liquid, dripped from the tube A3 onto the liquid dispersing member B1 under being deviated, flows to right and left along the upper surface groove 4 of the member B1, subsequently, it flows down along a multitude of outer peripheral grooves 3, 3... and drips substantially uniformly onto the heat transfer tube A4. The deviation of the drip of liquid at the bottom of the heat transfer tube A6 may be corrected by the liquid dispersing member B2 in the same manner. |
