Sunpower - Spiral-wound Heat Exchanger

LNG Plant & Coal Chemical Industry. Liquefaction Condenser. DN2600*10,000mm, 28tons. SS304. A spiral-wound heat exchanger (SWHE) comprises multiple layers of tubes wound helically around the central core (mandrel) with a constant longitudinal pitch. The coiling direction alternates from one layer to the next. Radial distances between each layer are held constant by space bars. The tube-side fluids are in spiral flow, and the shell-side fluid passes through the tube bundle in countercurrent flow, which achieves very high heat transfer coefficients in both tube and shell sides by creating vortex and Venturi effect.