Corrosion inhibitor of industrial cooling circulating water system

A technology for cooling circulating water and corrosion inhibitors, which can be used in descaling and water softening, complex/solubilizing agent treatment, water/sludge/sewage treatment, etc. It can solve the problem of unsatisfactory effects of various metals and paralysis of industrial equipment And other issues

Inactive Publication Date: 2006-04-05
SHANGHAI WANSEN WATER TREATMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, acidic corrosion inhibitors are mainly used in the prior art to inhibit corrosion of the industrial cooling water system before cleaning. Although the acidic corrosion agents in the prior art have good corrosion inhibition effects, most of the effective corrosion inhibitors are Has a certain degree of specificity, usually not ideal for corrosion inhibition of multiple metals
However, the system to be cleaned is often composed of a variety of metals. If the corrosion inhibitor is not selected properly, the consequences will be unimaginable, and even the entire industrial equipment will be paralyzed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1 The use method of the corrosion inhibitor for industrial cooling circulating water system of the present invention

[0010] 1. Rinse the system with clean water and turn on the circulating water pump to ensure that the circulating system is smooth and free of drips.

[0011] 2. Add this product from the expansion tank, dosing device or open pool, etc., and the concentration is controlled at about 2%.

[0012] 3. Continue to turn on the circulating water pump for at least 1 hour to ensure that the concentration of the corrosion inhibitor is uniform throughout the system.

[0013] 4. After about 5 hours of corrosion inhibitor treatment, the cleaning agent used in the industrial cooling circulating water system can be added for subsequent cleaning.

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PUM

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Abstract

The present pertains to the field of chemical industry, wherein an antisludging agent for industrial circulating water systems is disclosed, which comprises thiocarbamide, benzotrizaole, mercaptobenzothiazole, sodium silicate and water. The antisludging agent has good inhibiting effects to various acids and metals.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to a chemical corrosion inhibitor. More specifically, the invention relates to a corrosion inhibitor used in industrial cooling circulating water systems. Background technique [0002] In order to prolong the service life of industrial equipment, especially large-scale industrial equipment, it is usually necessary to carry out corrosion inhibition treatment on industrial cooling circulating water system. At present, acidic corrosion inhibitors are mainly used in the prior art to inhibit corrosion of the industrial cooling water system before cleaning. Although the acidic corrosion agents in the prior art have good corrosion inhibition effects, most of the effective corrosion inhibitors are With a certain degree of specificity, the effect of corrosion inhibition on a variety of metals is usually not ideal. However, the system to be cleaned is often composed of a variety of metals. If t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/08C02F5/12
Inventor 沈志昌
Owner SHANGHAI WANSEN WATER TREATMENT CO LTD
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