FIELD: power engineering.
SUBSTANCE: invention relates to heat engineering and can be used for cleaning heat power equipment, where water is used as a heat carrier, including shell-and-tube heat exchangers which are completely hammered and not suitable for operation from deposits represented by 80–90 % calcium and magnesium carbonates of various modifications (calcite, aragonite) of any density. It is proposed to clean pipe boards of heat exchanger mechanically from deposits, to drill deposits in each tube of heat exchanger to a depth of not more than 100 mm, front boards of heat exchanger are treated with hydrophobic acid-resistant graphite grease. Cleaning aqueous solution of 10–14 % of hydrochloric acid containing 0.8–1 % of thiourea as an inhibitor is supplied individually to each tube of the heat exchanger.
EFFECT: high efficiency of cleaning heat power equipment and complete recovery of its operational characteristics, low costs for the cleaning process.
1 cl, 1 tbl, 2 dwg
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