The detachable plate heat exchanger is made up of many stamped corrugated metal plates at a certain interval, sealed with gaskets around them, and laminated and compressed by a frame and a compression screw. Plate heat exchangers have been widely used in many industries such as power engineering, shipping, metallurgy, petroleum, chemical, food and light industry. So what are the temperature and pressure design requirements of the plate heat exchanger?
The fully welded plate heat exchanger does not use any non-metallic sealing materials, and it has high temperature and pressure resistance. It can be applied to extreme working conditions with working temperature of 300℃ and pressure of 3.0Mpa. The normal working temperature of the detachable plate heat exchanger is less than 150℃ (related to the performance of the sealing material), and the pressure is less than 1.6Mpa.
Only the shell plate of the heat transfer plate of the plate heat exchanger is exposed to the atmosphere, so the heat loss is negligible, and no heat preservation measures are required. One of its features in operation and maintenance is that it is easier to assemble and disassemble. We only loosen the compression bolts to remove the plates for cleaning, replacement of gaskets, and even plate replacement. This is particularly important for materials that are prone to deposits in the heat exchange medium. The temperature, pressure and chemical stability that the gasket can withstand often become the temperature and pressure limits of its use and the allowable range of materials. Due to the small gap between the heat transfer surfaces and the unevenness on the heat transfer surface, the pressure loss is greater than that of the traditional smooth.