Disadvantages of plate heat exchangers
(1) The workpiece pressure is less than 2. 5Mpa. The plate heat exchanger is sealed by a gasket. The circumference of the seal is very long, and the support of the two seals of the corner hole is poor, and the gasket does not have sufficient pressing force.
(2) The operating temperature of the plate heat exchanger below 250 °C depends on the temperature that the gasket can withstand. When using rubber elastic gaskets, the maximum working temperature is below 200 °C; when using compressed core lint gasket (Csf), the maximum working temperature is 250 ~ 260 °C. Due to the poor elasticity of the compressed core lint gasket, the working pressure is lower than that of the rubber gasket.
(3) The heat exchanger plate heat exchanger which is not easy to block the passage of the passage is very narrow, generally 3 to 5 mm. When the heat exchange medium contains large solid particles or fibrous substances, it is easy to block inter-board access. For this type of heat transfer, consider installing a filter at the inlet or using a regenerative cooling system.