Introduction to plate heat exchangers

Plate heat exchangers are composed of stamped concave and convex stainless steel plates. The concave and convex lines between the two adjacent plates are combined at 180 degrees, so the concave and convex ridges between the two plates of the plate heat exchanger form staggered contact points. After the contact points are combined by vacuum welding, the high-pressure staggered flow structure of the plate heat exchanger is formed. These staggered flow structures make the cold and hot fluids in the plate heat exchanger produce strong turbulence to achieve high heat exchange effect. The plate heat exchanger is composed of a group of corrugated metal plates with four corner holes on the plate for the two liquids to pass through. The metal plate is installed in a frame with a fixed plate and a movable clamping plate on the side and clamped with clamping bolts. The plate is equipped with a sealing gasket to seal the fluid channel and guide the fluid to flow alternately into each flow channel to form heat exchange. The flow rate, physical properties, pressure drop and temperature difference of the fluid determine the number and size of the plates. The corrugated plate not only increases the degree of turbulence, but also forms many support points, which are sufficient to withstand the pressure difference between the media. The metal plate and the movable plate holding plate are suspended from the upper guide rod and positioned by the lower guide rod, while the rod ends are fixed to the supporting columns.