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Corrosion and scale inhibition method for aluminum plate type cooling-heat transfer equipment

A technology of corrosion and scale inhibition and corrosion and scale inhibitor, which is applied in the field of water treatment, can solve the problems of pollution, large amount of use, poor effect, etc., and achieves the effect of simple process, long service life and good application prospect.

Inactive Publication Date: 2015-05-06
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the fact that there is no efficient corrosion and scale inhibition method suitable for aluminum plate type cold exchange equipment in the prior art and the corrosion and scale inhibitors are used in large quantities, pollute the environment, and have the effect of dealing with calcium phosphate scale, zinc scale and iron oxide deposition In order to deal with poor problems, the present invention provides a corrosion and scale inhibition method for aluminum plate type cold exchange equipment. The corrosion and scale inhibitor components of the present invention do not contain organic or inorganic phosphorus, and are a combination of high molecular polymer and inorganic salt. The composite corrosion and scale inhibitor has the advantages of less dosage and no harm to the environment, human body and crops. It is an environmentally friendly corrosion inhibitor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A corrosion and scale inhibition method for aluminum plate type cold exchange equipment, the steps are:

[0030] (1) Prepare a slow-release scale inhibitor. The components of the slow-release scale inhibitor and the mass parts of each component are: 25 parts of calcium tartrate, 20 parts of stearyl glucoside, 10 parts of benzotriazole, 4 Parts bis(hydroxymethyl) imidazolidinyl urea, 20 parts methylsilanol, 10 parts allantoin, 15 parts hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, 10 parts glycerol polymethyl Acrylates, 65 parts water.

[0031] (2) Add the slow-release scale inhibitor prepared in step (1) into the circulating cooling water, wherein the concentration of the slow-release scale inhibitor in the circulating cooling water is 400 ppm;

[0032] (3) Pass the circulating cooling water containing the slow-release scale inhibitor in step (2) into the aluminum plate type cold exchange equipment to carry out the heat exchange process.

[0033] Wh...

Embodiment 2

[0041] A corrosion and scale inhibition method for aluminum plate type cold exchange equipment, the steps are:

[0042] (1) Prepare a slow-release scale inhibitor. The components of the slow-release scale inhibitor and the mass parts of each component are: 20 parts of calcium tartrate, 15 parts of stearyl glucoside, 8 parts of benzotriazole, 3 parts of Parts bis(hydroxymethyl) imidazolidinyl urea, 15 parts methylsilanol, 15 parts allantoin, 12 parts hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, 8 parts glycerol polymethyl Acrylates, 60 parts water.

[0043] (2) Add the slow-release scale inhibitor prepared in step (1) into the circulating cooling water, wherein the concentration of the slow-release scale inhibitor in the circulating cooling water is 550 ppm;

[0044] (3) Pass the circulating cooling water containing the slow-release scale inhibitor in step (2) into the aluminum plate type cold exchange equipment to carry out the heat exchange process.

[0...

Embodiment 3

[0054] A corrosion and scale inhibition method for aluminum plate type cold exchange equipment, the steps are:

[0055] (1) Prepare a slow-release scale inhibitor. The components of the slow-release scale inhibitor and the mass parts of each component are: 30 parts of calcium tartrate, 10 parts of stearyl glucoside, 12 parts of benzotriazole, 5 parts Bis(hydroxymethyl)imidazolidinyl urea, 17 parts methylsilanol, 13 parts allantoin, 14 parts hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, 9 parts glycerol polymethyl Acrylates, 70 parts water.

[0056] (2) Add the slow-release scale inhibitor prepared in step (1) into the circulating cooling water, wherein the concentration of the slow-release scale inhibitor in the circulating cooling water is 600 ppm;

[0057] (3) Pass the circulating cooling water containing the slow-release scale inhibitor in step (2) into the aluminum plate type cold exchange equipment to carry out the heat exchange process.

[0058] Wher...

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Abstract

The invention discloses a corrosion and scale inhibition method for aluminum plate type cooling-heat transfer equipment, which belongs to the field of water treatment. A corrosion and scale inhibitor used in the invention is composed of 20-30 parts of calcium tartrate, 10-20 parts of octadecyl glucoside, 8-12 parts of benzotriazole, 3-5 parts of bis(hydroxymethyl) imidazolidinyl urea, 15-20 parts of methyl silanol, 10-15 parts of allantoin, 12-15 parts of hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, 8-10 parts of glyceryl polymethacrylate and 60-70 parts of water. The corrosion and scale inhibitor does not contain organic or inorganic phosphorus, and is a compound corrosion and scale inhibitor compounded by using a high-molecular polymer and an inorganic salt, so that the inhibitor has the advantages of small application amount, and no harm to the environment, human bodies and crops, and the like, and the inhibitor is an environmental-friendly corrosion inhibitor, and has an excellent corrosion inhibition effect on the aluminium plate type cooling-heat transfer equipment, therefore, the inhibitor has a good application prospect.

Description

technical field [0001] The invention belongs to the field of water treatment, and more specifically relates to a corrosion and scale inhibition method for aluminum plate type cold exchange equipment. Background technique [0002] my country is a country seriously short of water resources. There are 18 provinces, municipalities and autonomous regions whose per capita water resources are lower than the 2000 m per capita water resources considered by the United Nations Sustainable Development Commission. 3 , less than 1000 m in 10 provinces, municipalities and autonomous regions 3 The minimum survival line, the serious shortage of water resources will definitely affect the normal production and life, affect the economic development, circulating cooling water is a large industrial water. Due to the increasing shortage of fresh water resources, industrial cooling water treatment agents are getting more and more attention. Organic phosphonic acid is a type of water treatment age...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/08C02F5/10C02F5/12
CPCY02W10/37
Inventor 程迎春
Owner HARBIN UNIV OF SCI & TECH
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