Function of each component of plate heat exchanger
The gasketed plate heat exchanger is formed by punching a thin metal plate (generally 0.4 mm to 0.8 mm) into a convex-concave shape, and a synthetic rubber sealing gasket is attached to the periphery, and each heat transfer plate is a heat transfer unit. The necessary heat transfer plates are combined into a heat transfer portion. When the high temperature fluid or the low temperature fluid flows through the heat transfer plates to form a flow path, heat exchange is performed, and the heat transfer portion is fixed to the fixed plate (frame plate) and movable by the upper and lower rods. Between the plates (playing plates, extruded plates) and fastened with long bolts.
1.Heat transfer plate:The heat transfer plate is the first heat exchange element of the plate heat exchanger. Usually, the corrugated shape is made into a herringbone shape. According to the different fluid medium, the heat transfer plate has different materials. Most of them are made of stainless steel and titanium.
2. Sealing gasket:The gasket of the plate heat exchanger is primarily a sealing function between the heat exchange plates. It includes nitrile rubber, EPDM rubber, fluorine rubber according to different media.
3.Pressure plates at both ends:The pressure plates at both ends are primarily clamped against all heat transfer plates to ensure that the fluid medium does not leak.
4. Clamping bolt:The clamping bolts are primarily used to tighten the pressure plates at both ends. The clamping bolts are usually double-ended threads. When the bolts are pre-tensioned, the torque of the fixing plates is even.
5. Rack:The first is to support the heat exchange plate to make it easy to disassemble, clean and assemble.