Scale and corrosion inhibitor for power cycling water system

Abstract

A scale and corrosion inhibitor for a power cycling water system belongs to the technical field of water treatment of a power system. The invention aims to provide a preparation method for a composite scale inhibitor which is simple in process flow, low in production cost, stable in quality and efficient in scale prevention and corrosion deceleration, and is a phosphorus-free formula product. The scale and corrosion inhibitor comprises the ingredients in percentage by weight: 15-30% of hydrolytic polymaleic anhydride, 10-20% of polyepoxysuccinic acid, 10-15% of a sulfonic acid copolymer, 5-8% of zinc salt, 2-5% of sodium salicylate and the balance of water. The compound raw materials adopted are non-toxic, low in price and efficient, and the production process of the scale and corrosion inhibitor is simple in flow, the product quality is stable, and the corrosion and scale inhibition rate is greater than 95%. Meanwhile, the production process of the scale and corrosion inhibitor is an environmental-friendly clean process which is free of industrial three waste discharge, simple to operate, low in production cost and suitable for industrialized scale production.

Description

technical field [0001] The invention relates to a scale and corrosion inhibitor for a power circulating water system, belonging to the technical field of power system water treatment. Background technique [0002] With the development of industry, industrial water consumption has increased sharply, and the shortage of water resources has become a major problem to be solved urgently in the world; the use of circulating cooling water is an important and effective way to save water resources. Among them, the circulating cooling water accounts for 70% of the total water. If the treatment effect of the circulating cooling water is poor, the deposits in the system will increase, resulting in scaling, salt accumulation and corrosion of the thermoelectric equipment, which will directly affect the thermoelectric equipment (boiler, steam turbine) of the power plant. etc.) for safe, stable and economical operation. Therefore, controlling the sediment content in the cooling water syste...

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Problems solved by technology

[0002] With the development of industry, industrial water consumption has increased sharply, and the shortage of water resources has become a major problem to be solved urgently in the world; the use of circulating cooling water is an important and effective way to save water resources. Among them, the circulating cooling water accounts for 70% of the total water. If the treatment effect of the circulating cooling water is poor, the deposits in the system will increase, resulting in scaling, salt accumulation and corrosion of the thermoelectric equipment, which will directly affect the thermoelectric equipment (boiler, steam turbine) of the power plant. etc.) for safe, stable and economical operation

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