Multifunctional boiler cleaning and protecting combined agent and preparation method thereof

Abstract

The invention discloses a multifunctional boiler cleaning and protecting combined agent, which comprises an alkalization membrane amine protective agent, an organic film coating agent and a dispersion cleaning agent, the alkalization membrane amine protective agent comprises 0.1-80 wt% of an alpha-composite alkyl hydrate aqueous solution, the organic film coating agent comprises 0.1-50 wt% of a hydrazide derivative aqueous solution, and the dispersion cleaning agent comprises 0.1-10 wt% of a dispersant. The dispersion cleaning agent comprises 0.1-30wt% of an aqueous solution of a high-molecular carboxylic acid polymer. The use of the alkalized membrane amine protective agent can effectively improve the pH of water supply, steam and condensed water systems; the organic film coating agent has a deoxidizing function and can neutralize oxygen left after thermal deoxidizing, oxygen corrosion is reduced, and safe operation of a steam turbine is guaranteed; the dispersed cleaning agent can eliminate the negative influence caused by the use of a conventional phosphate medicament; the generation of scales and sediments in the boiler is effectively inhibited, and the scaling problem of the boiler tube is prevented. The three reagents are combined for use, so that the boiler can be effectively cleaned, meanwhile, the boiler is protected, and the service life of the boiler is prolonged.

Description

technical field [0001] The invention relates to the technical field of boiler water treatment agents, in particular to a multifunctional boiler cleaning and protection composition and a preparation method thereof. Background technique [0002] In recent years, with the continuous improvement of boiler equipment, steam boiler equipment mainly uses the heat released by the heating equipment to convert the cold water in the boiler into steam and high-temperature water with a certain thermal energy through radiation heat transfer, and then circulate and use in the boiler equipment. Therefore, with the long-term operation of the equipment, the boiler water will corrode or deposit scale on the inner wall and water pipelines, affecting the service life of the equipment and causing hidden dangers to production safety. [0003] At present, the process of special boiler water treatment is mainly divided into three parts: adjusting pH, removing oxygen in water and preventing scale from...

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Problems solved by technology

[0004] There are three main problems with traditional boiler water treatment agents: (1) Corrosion control problems in feed water, steam and condensate systems; (2) Scaling, deposition and entrainment control problems in boilers, if not treated in time, secondary knots will occur (3) There are potential safety hazards of alkali corrosion and large sewage discharge, resulting in loss of soda water and heat loss, and phosphorus-containing sewage is extremely harmful to the environment, and the quality of boiler water is also low. unstable

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