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Composite corrosion and scale inhibitor used for circulating cooling water

A corrosion and scale inhibitor, a technology of circulating cooling water, applied in the field of water treatment, can solve the problems of high strength, serious scaling, and high alkalinity of circulating cooling water, and achieve good odorless dispersing performance, good corrosion inhibition, good The effect of the anti-scaling effect

Inactive Publication Date: 2014-03-26
山东华亚环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Circulating cooling water plays a pivotal role in the cooling system, but the circulating cooling water used has high strength, high alkalinity, and serious fouling characteristics. When the water temperature is higher than the ambient temperature, the formation of inorganic salts such as calcium carbonate Dirt can have serious consequences
When it is used as a cooling medium in an industrial cooling circulating water system, it will cause deterioration of water quality, corrosion and scaling, etc., resulting in blockage or leakage of heat exchangers and pipes, seriously affecting the normal operation of production equipment

Method used

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  • Composite corrosion and scale inhibitor used for circulating cooling water
  • Composite corrosion and scale inhibitor used for circulating cooling water
  • Composite corrosion and scale inhibitor used for circulating cooling water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A composite corrosion and scale inhibitor for circulating cooling water, consisting of the following components by weight:

[0019]

[0020]

[0021] Using the composite corrosion and scale inhibitor described in Example 1 makes the corrosion inhibition effect reach 98.8%, so that the corrosion rate is reduced to 0.0021mm / a.

Embodiment 2

[0023] The composite corrosion and scale inhibitor for circulating cooling water consists of the following components by weight:

[0024]

[0025] Using the composite corrosion and scale inhibitor described in Example 2 makes the corrosion inhibition effect reach 98.92%, so that the corrosion rate is reduced to 0.00203mm / a.

Embodiment 3

[0027] The composite corrosion and scale inhibitor for circulating cooling water consists of the following components by weight:

[0028]

[0029] Using the composite corrosion and scale inhibitor described in Example 3 makes the corrosion inhibition effect reach 99.15%, so that the corrosion rate is reduced to 0.00209mm / a.

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Abstract

The invention belongs to the technical field of water processing, and specially relates to a composite corrosion and scale inhibitor used for circulating cooling water. The composite corrosion and scale inhibitor used for circulating cooling water comprises following ingredients, by weight, 11 to 17 parts of sodium tetraborate, 6 to 10 parts of sodium benzoate, 5 to 9 parts of maleic anhydride-sulfonated styrene copolymer, 2.7 to 3.8 parts of methylbenzotriazole, and 3.1 to 4.5 parts of 2-hydroxyphosphonoacetic acid. The composite corrosion and scale inhibitor is convenient for using, is low in toxicity, is high in dispersity, and is smell-less.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a composite corrosion and scale inhibitor for circulating cooling water. Background technique [0002] Circulating cooling water plays a pivotal role in the cooling system, but the circulating cooling water used has high strength, high alkalinity, and serious fouling characteristics. When the water temperature is higher than the ambient temperature, the formation of inorganic salts such as calcium carbonate Dirt can have serious consequences. When it is used as a cooling medium in an industrial cooling circulating water system, it will cause deterioration of water quality, corrosion and scaling, etc., resulting in blockage or leakage of heat exchangers and pipes, seriously affecting the normal operation of production equipment. With the rapid development of social economy and technological progress, water treatment technology has been paid more and more atten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/08C02F5/10C02F5/14
Inventor 牟军平朱娜
Owner 山东华亚环保科技有限公司
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