| 摘要 |
PROBLEM TO BE SOLVED: To improve the anticorrosive effect on both a boiler body an a steam condensate system pipeline with one liquid by using a heterocyclic compound having N-substituted amino groups, and a neutralizing amine as the constituents. SOLUTION: Boiler water in an amount of 1l is formulated with a heterocyclic compound having N-substituted amino groups, such as N-aminomorpholine, 1-aminopyrrolidine, 1-amino-4-methylpiperazine or 1,4-diaminopiperazine, in an amount of 0.001-1,000mg, preferably 0.01-300mg, more preferably 0.02-100mg, a neutralizing amine, such as cyclohexylamine or 2-amino-2-methyl-1-propanol, in an amount of 0.001-1,000mg, preferably 0.02-100mg, and if necessary, a dioxidizer such as hydrazine, sodium sulfite, succinic acid or gluconic acid, or a corrosion inhibitor, and a dispersant, a chelating agent, a scale inhibitor, or a mixture thereof. |
