The heat transfer sheet material of plate heat exchanger is generally austenitic stainless steel, with AISI304, 304L, AISI316, 316L and 316Ti models. The sealing materials are NBR 130-140, RCB 140 and EPDM 150, all of which can resist corrosion of acid, alkali, ketone and alcohol solutions. Based on this, we use the special cleaning agent developed by energy research institute of henan academy of sciences stainless steel (the cleaner has passed the technical appraisal of science and technology department organization in henan province), nitric acid, glycolic acid, corrosion inhibitor, penetrating agent, defoaming agent, such as chemical composition, the cleaner for stainless steel products have high descaling rate, low corrosion rate, descaling speed etc, the best cleaning concentration in the range of 0.10 ~ 0.15 mol/L. All the performance indicators of the detergent have been tested in accordance with HG/ t2387-2007 standards for chemical cleaning quality of industrial equipment.

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