1, To the ionic or molecular state dissolved in water impurities on the heat exchanger hazards
Calcium salts: is the main component causing plate heat exchanger scaling. The salts are a hard, crystalline fine scale, loose structure, adhesion is small, is a relatively loose mud slag, shared from the water with mobility, even if attached to the heated surface is also very easy to remove. Sodium salts: Nacl will accelerate the corrosion of the metal wall, Na2So4 content is too high will affect the safe operation of the equipment, NaHCo3 in the temperature and pressure, it will be decomposed into a number of substances caused by metal grain damage.
2, To the colloidal state of impurities on the heat exchanger hazards
Mainly iron compounds, it will generate iron scale. Microorganisms sometimes back to block the pipeline, but also on the plate corrosion. There are also sludge and slime scale, etc. will cause blockage and corrosion of the pipeline.
3, Dissolved oxygen gas heat exchanger hazards
Oxygen is the most serious factor causing corrosion of heat exchanger equipment, when the corrosion is concentrated in some parts of the metal surface, resulting in localized corrosion. Localized corrosion is fast, easy to rust through, pitting is localized corrosion in the plate heat exchanger.
From the above, the plate heat exchanger used in the water quality is very harmful to it, in the use of equipment, we have to strengthen the importance of doing a good job of heat exchanger decontamination as well as anticorrosion, not only can improve the efficiency of the work can also extend the service life of the heat exchanger, so that you can greatly save the cost of investment.
