Compound corrosion inhibitor for internal cooling water hollow copper conductor of electric generator and application of compound corrosion inhibitor

Abstract

The invention discloses a compound corrosion inhibitor for an internal cooling water hollow copper conductor of an electric generator and application of the compound corrosion inhibitor. The compound corrosion inhibitor comprises diphenol and/or polyphenol compounds, diamine and/or polyamine compounds and short-chain alkyl hydrosulfide. The prices of raw materials of the compound corrosion inhibitor are low; and the compound corrosion inhibitor is simple to prepare and convenient use, can meet the water quality control requirement of internal cooling water while guaranteeing a good corrosion inhibition effect, doesn't need a small mixed bed, a water quality control device and the like, remarkably reduces the investment, operation and maintenance costs of an electric generator set, and facilitates the popularization and application.

Description

technical field [0001] The invention relates to a composite corrosion inhibitor for cold-water hollow-core copper wires in a generator and an application thereof, and belongs to the technical field of electrical engineering. Background technique [0002] As the capacity of the generator set increases, the line load and current density of the generator increase significantly, and the more heat generated by the mechanical rotation of the rotor and the electromagnetic action, requires better heat dissipation capacity. At present, generators usually use water to circulate and cool inside the hollow copper wire to reduce the operating temperature of the generator. However, in actual operation, the corrosion problem of air-core copper wires is prominent, and in severe cases, it may cause accidents such as insulation breakdown and over-temperature burning of the coil, causing the unit to shut down and causing serious economic losses. In particular, the hollow copper conductors of ...

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Problems solved by technology

[0004] In view of the problems that the existing corrosion inhibitors cannot meet the corrosion protection requirements of the hollow copper wires in the cooling water of large generators, the investment cost of the water quality control method is high, and the operation and maintenance are difficult, the purpose of the present invention is to provide a method that can , can not only effectively inhibit the corrosion of hollow copper wires, but also ensure that the water quality of the internal cooling water meets the operating requirements of the unit

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