Introduction to the results: A vertical spiral baffle U-shaped tube condenser includes a shell assembly, a tube bundle assembly, an upper head assembly, etc.; the downstream edge of the sector-shaped baffles of the spiral baffle group of the tube bundle assembly is bent upward to form a liquid retaining weir, which is located between the tube rows; upstream liquid-draining gaps and downstream liquid-draining gaps are provided on the arc-shaped edges of the sector-shaped baffles; the inclination angle of the sector-shaped baffles decreases in sections from top to bottom; the spiral baffle group can also be a double-ended helix or a three-ended helix. The fan baffle not only supports the tube bundle, but also helps to scrape dry the liquid film on the surface of the tube bundle, and guides the condensate to the inner wall of the shell and discharges it along the wall to the bottom, so that the tubes under the baffle are directly contacted with the steam on their dry surfaces., increasing the condensation heat transfer coefficient. The invention improves the heat exchange coefficient of the vertical shell-and-tube condenser, which has the advantages of small floor area, convenient tube bundle extraction, and convenient maintenance.

Technical characteristics: Vertical shell-and-tube condensers have the advantages of small footprint, convenient installation and maintenance, and adapting to the need to realize falling film or forced convection evaporation inside the tube on the other side. However, due to the accumulation of suspected liquid outside the tube of traditional arched baffle vertical condensers under the action of gravity, the condensation heat transfer thermal resistance on the surface of the tube bundle quickly increases along the way, and there is the disadvantage of low suspected heat transfer coefficient on the shell side.