1) The medium flows continuously and smoothly in a spiral pattern within the shell, eliminating the significant pressure losses caused by transverse flow redirection, thus resulting in lower pressure drop.
2) Under the same pressure drop, the flow velocity of the shell-side medium can be significantly increased, thereby boosting the Reynolds number and enhancing the medium's heat transfer capability.
3) Since the shell-side medium flows spirally forward, a velocity gradient is generated in the radial cross-section, creating radial turbulence. This turbulence helps thin the stagnant layer on the surface of the heat transfer tubes, thereby enhancing the film heat transfer coefficient.
4) Compared to the transverse flow arrangement, there are no stagnant dead zones, which not only enhances the heat transfer coefficient but also reduces fouling buildup and stabilizes thermal resistance. This ensures the heat exchanger operates efficiently at all times, making it particularly suitable for highly viscous media by effectively lowering thermal resistance.
Improving the membrane heat transfer coefficient can also significantly reduce the number of shutdowns required for cleaning.
5) The spiral baffle provides stronger restraint on the heat exchange tubes compared to the segmental baffle, reducing tube bundle vibration and thereby extending the equipment's operational lifespan. 。

1) The medium flows continuously and smoothly in a spiral pattern within the shell, eliminating the significant pressure losses caused by transverse flow redirection, thus resulting in lower pressure drop.
2) Under the same pressure drop, the flow velocity of the shell-side medium can be significantly increased, thereby boosting the Reynolds number and enhancing the medium's heat transfer capability.
3) Since the shell-side medium flows spirally forward, a velocity gradient is generated in the radial cross-section, creating radial turbulence. This turbulence helps thin the stagnant layer on the surface of the heat transfer tubes, thereby enhancing the film heat transfer coefficient.
4) Compared to the transverse flow arrangement, there are no stagnant dead zones, which not only enhances the heat transfer coefficient but also reduces fouling buildup and stabilizes thermal resistance. This ensures the heat exchanger operates efficiently at all times, making it particularly suitable for highly viscous media by effectively lowering thermal resistance.
Improving the membrane heat transfer coefficient can also significantly reduce the number of shutdowns required for cleaning.
5) The spiral baffle provides stronger restraint on the heat exchange tubes compared to the segmental baffle, reducing tube bundle vibration and thereby extending the equipment's operational lifespan. 。