From the mechanism of action, scale inhibitors can chelate solubilization, coagulation and dispersion, electrostatic repulsion and crystal distortion. In the laboratory evaluation test, dispersion is the remedy of chelation, and lattice distortion is the remedy of dispersion.
Scale inhibitors can be divided into natural polymer scale inhibitors and synthetic polymer scale inhibitors according to their polymerization components. Synthetic polymer scale inhibitors can be further divided into carboxylic acid polymer scale inhibitors, sulfonic acid polymer scale inhibitors, phosphorus-containing polymer scale inhibitors and environmentally friendly scale inhibitors.
Matters needing attention in adding scale inhibitor in extended data:
1, the conditionally measurable boiler water concentration multiple of corrosion and scale inhibitor is controlled at about 10 times, and other parameters are adjusted according to the relevant regulations of the labor department (such as boiler water pH 10 ~ 12, etc.). ).
2. The dosing water tank should be made of plastic products, and the water tank made of cement should be treated with anti-corrosion, otherwise it will be easily eroded by chemicals and increase the hardness of water.
3. The total hardness of boiler make-up water should be controlled within 200 mg/L. If the hardness is too high, lime method or other methods can be used to reduce the hardness, otherwise it will affect the scale inhibition effect of TH-503, a special corrosion and scale inhibitor for boilers.
4. The corrosion and scale inhibitors shall be put into use in accordance with the standards, and they shall be put into use regularly and quantitatively in proportion to ensure the water quality. Otherwise, there will be damage.
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