Plate heat exchanger is widely used, the medium used is from ordinary water to high viscosity liquid; From the material containing small solid particles to the material containing a small amount of fiber; From non corrosive to highly corrosive medium; From water vapor to various gases and so on. Today, I will take you to understand the application and precautions of plate heat exchanger under sulfuric acid condition.
We all know that sulfuric acid will show oxidation and reduction with the change of concentration. Concentrated sulfuric acid tends to be oxidizing, dilute acid tends to be reducing, and its corrosiveness increases sharply with the increase of temperature. Therefore, the material selection of plate heat exchanger under sulfuric acid condition requires both oxidation resistance and corrosion resistance as well as reduction resistance. After using for a period of time, the acid inlet and water outlet can be replaced, which can prolong the service life of the equipment. When using the equipment, the water cut-off should be avoided as far as possible, otherwise it will cause the damage to the equipment caused by the material wall temperature rising.
Sulfuric acid is highly corrosive, so we should pay attention to protection during production, and also clean and maintain the equipment regularly.
