The all-round heat transfer solution for liquid-liquid fouling duties. Exceptional compactness and self-cleaning design make the spiral heat exchangers extremely versatile even when operating at high pressures and high capacities. Excellent choice when one, or both, fluids are fouling, due to its self-cleaning effect.
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Alfa Laval SHE Type 1 is a good choice when one, or both, fluids are fouling, due to its self-cleaning effect. Since the fluid flows continuously in one single channel the force of the fluid acts against any deposits, “pushing” them through the channel and out the other end. In a few cases Alfa Laval SHE Type 1 can be used as a condenser, for example when the cooling media is heavily fouling, or very close temperature approach is required (since the counter-current configuration is thermally the most efficient).
The compact nature of the Alfa Laval SHE Type 1 spiral often allows several large shell-and-tubes units to be replaced by one single SHE, giving considerable infrastructure benefits in addition to the reduction in maintenance and cleaning activities. If, or when, the SHE needs cleaning, the covers can easily be removed and the SHE cleaned using a hydrojet.
Heat exchange duties that benefit from the strengths of spiral heat exchangers include:
High pressure spiral heat exchangers only require a very small area for mounting and access, resulting in lower unit installation costs compared with other heat exchangers.
The high pressure spiral heat exchanger is a very versatile product. Many of the duties performed by heat exchangers require one channel per fluid, and this can be a distinct benefit.