CORROSION CONTROL DURING ACID PICKLING OF BOILER IN POWER PLANT
电站锅炉盐酸清洗中的腐蚀控制

This article introduces the corrosion control during acid pickling of boiler with hydrochloric acid.The test results showed that:(1)The corrosion rate of steel is mainly affected by procedures of acid pickling,rinsing and flushing;(2)The corrosion rate is primarily affected by flow rate and concentration of Fe 3+ during acid pickling,and flow rate can vary the corrosion rate by 10 times,however Fe 3+ can vary the corrosion rate by 3 times;(3)The corrosion rate during flushing after acid pickling is more or less the same as that druing acid pickling,so the period of flushing should be as short as possible,and (4)The corrosion rate can be reduced by inhibitor during rinsing.