Boiler water pH
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What is the reason for the low pH of boiler water? What are the requirements for boiler water pH? Are there any requirements for adding or subtracting to boiler water? Is there any good formula to introduce?
When the pH value is low, it is necessary to test the alkalinity. If the pH value is low, it depends on whether the pH value of the incoming water is greater than or equal to 7, whether the sewage discharge is too large, whether there is system condensate water recovery, and whether there is leakage. If the furnace has just been opened, it is normal for it to be a little low. The requirement for normal operation is 10-12. When adding alkali, generally add sodium carbonate or trisodium phosphate. Because the pH value can be better controlled, sodium hydroxide can also be added. When the amount added is small, it can cause large changes in the pH value. It should be controlled and understood based on laboratory data.
The boiler produces steam of 1.0 MPa, 170--180 degrees, and a pH value of 5.8. Is the pH value low? It is said that the pH value is related to temperature. The neutral pH value of water at 100 degrees is 6. How can we control the pH value of boiler water without adding medicine? What is the principle?