Plate heat exchanger is a new type of heat exchanger made of a series of metal sheets stacked with a certain corrugated shape. It is widely used in life, generally used for domestic or industrial heating to provide heat exchange. Today to analyse the plate heat exchanger cycle schematic for you to see how the plate heat exchanger works.
Removable plate heat exchanger is made of many stamped with corrugated thin plate at certain intervals, surrounded by gasket sealing, and with the frame and compression spiral overlap compression and become, the plate and gasket of the four angular holes to form a fluid distribution pipe and convergence pipe, while reasonably hot and cold fluids are separated, so that they are respectively in the flow on both sides of the flow channel of each plate, through the plate for heat exchange.
Heat transfer plate is the core component of the heat exchanger, plate forming process and material properties of the sealing and heat transfer efficiency will have a direct impact. Heat exchanger is usually water as a cooling medium, most of the plate is made of stainless steel sheet, in the plate embossed with corrugated flow tails, the space between the two adjacent plates that is the media flow path, cold and hot fluid in the plate on both sides of the flow, through the plate for heat exchange.
In general, the plate heat exchanger heat transfer coefficient K value in the range of 3,000-6,000W/m'℃, at the same time, the two media is almost full countercurrent flow, heat transfer efficiency is high. Under the same heat transfer efficiency, plate heat exchanger only needs 1/2-1/4 of the area of shell and tube heat exchanger to achieve the same heat transfer effect.
The single flow structure of plate heat exchanger is that there are only two plates without heat transfer, the first plate and the tail plate. Double flow structure: each process has 2 plates that do not transfer heat.
Plate heat exchanger use 1-2 years after the cycle need to carry out the necessary dismantling inspection, cleaning, pressure test. For deformation or perforation and other problems with the plate needs to be replaced in a timely manner, in the process of heat dissipation plate assembly in strict accordance with the flow chart.
