Special scale and corrosion inhibitor for low-temperature water system

Abstract

The invention discloses a special scale and corrosion inhibitor for a low-temperature water system, which comprises the following components in percentage by weight: 10-15% of terpolymer, 10-15% of polyepoxysuccinic acid derivative, 1-3% of molybdate, 1-3% of copper corrosion inhibitor and 64-78% of water.

Description

technical field [0001] The invention relates to water treatment technology in the chemical field, in particular to a special scale and corrosion inhibitor for low-temperature water systems. Background technique [0002] In the industrial circulating water, the oxygen circulating cooling water system has its particularity. Because there is air pre-cooling equipment in the system, the main performance is that the air cooling tower and the refrigerating unit are in a low-temperature operating state, and the temperature is about 5°C. The circulating cooling water passes through this type When the equipment is installed, the water temperature drops, which causes the solubility of ions in the water to decrease and precipitate out of the water, adhering to the surface of the equipment. This scaling phenomenon is called low-temperature scaling. The harm of low-temperature scale is the same as that of general scale, which affects the heat exchange efficiency of the heat exchanger, an...

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Problems solved by technology

[0004] Scaling will cause the diameter of some pipes to become smaller, affecting the normal flow of air and circulating water or directly blocking the pipes, affecting normal production, and causing serious parking accidents

At the same time, the fouling position is prone to corrosion under the scale, which is also a threat to the long-term safe operation of the equipment

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