As the most important heat transfer link of the plate exchanger system, the quality of the Plate heat exchanger directly affects the service life of the equipment.So the parameter type selection design of time, usually manufacturers will be in strict accordance with the customer to provide the parameters of iterative design, the medium through which it flows will confirm its physical performance, make sure to choose the corresponding material, because in the heat of different medium on the corresponding material plate is corrosive, so, according to the different heat transfer medium selection of suitable material of plates is quite important, in order to avoid the leaking!
1, water common tap water, pure water generally we choose stainless steel 304 material;So if it is well water, river water, closed circulating water and other media, we have to consider using 316L, because the components of these media are more complex, 304 corrosion resistance is not as good as 316L.So if it is seawater, we must consider using titanium alloy material, seawater chloride ion concentration is relatively high, only titanium alloy material can meet.
2, acid dilute sulfuric acid concentration is less than 10%, temperature below 50℃, can use stainless steel 316L material, if greater than the need to use Hastelloy alloy material.Phosphoric acid and hydrochloric acid work the same way.
3, oil general equipment lubricating oil, hydraulic oil are made of stainless steel 304 material.Considering the high temperature resistance of heat conduction oil, we use 316L material.
4. The working condition of steam steam is relatively common. Generally, we choose 316L material in the south, because the temperature of steam is generally above 120℃.In the north, considering the cost performance, 304 material will be chosen. For a long time, the Plate Heat Exchanger Plate is basically likely to be deformed
