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Optimization design method for titanium plate heat exchanger
(1) improve heat transfer coefficient only plates hot and cold on both sides and improve the surface heat transfer coefficient and reduce thermal resistance of scale, using high thermal conductivity of the sheet, reduce the thickness of the plate, to improve the heat transfer coefficient.
A. plate surface heat transfer coefficient
Due to the titanium plate and corrugated plate heat exchanger can cause fluid turbulence in small velocities, so that to obtain a higher surface heat transfer coefficients of surface heat transfer coefficient and the plate corrugation geometric structure and State of the flow medium. Plate profile including herringbone, flat, spherical, and so on. After years of research and found that the corrugated profile for the triangular gable plates with high surface heat transfer coefficient, and corrugated angle larger plate medium velocity of flow in the higher surface heat transfer coefficient increases.
B. reduce the fouling thermal resistance
Reduce the heat exchanger fouling thermal resistance is the key to prevention of sheet space structure. Thickness of sheet space structure to 1mm, the heat transfer coefficient is reduced by 10%. Therefore, must be taken to monitor both ends of the heat exchanger with hot and cold water to prevent plate structure, attached to the slab and prevent debris in the water.
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CIS survey of titanium industry