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Efficient special boiler corrosion and scale inhibitor

A corrosion and scale inhibitor, boiler technology, applied in descaling and water softening, water/sludge/sewage treatment, chemical instruments and methods, etc. handy effect

Inactive Publication Date: 2012-06-27
天津通悦科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Corrosion and scale inhibitor schemes that are applicable to primary heating network and secondary heating network and can adapt to water quality changes in various regions are rare

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A special corrosion and scale inhibitor for boilers includes the following raw materials in percentage by weight: 20% of aminotrimethylene phosphonic acid, 10% of hydroxypropyl acrylate, 25% of phosphated polymaleic acid, 5% of diethylhydroxylamine, Sodium hydroxide is 20%, and the balance is deionized water, and the above-mentioned raw materials are compounded.

Embodiment 2

[0023] A special corrosion and scale inhibitor for boilers includes the following raw materials in percentage by weight: 26% of diethylene triamine pentamethylene phosphonic acid, 8% of methylene succinic acid, 28% of phosphated polymaleic acid %, sodium carbonate 25%, and the balance is deionized water, which is formed by compounding the above-mentioned raw materials.

Embodiment 3

[0025] A special corrosion and scale inhibitor for boilers includes the following raw materials in percentage by weight: 28% of hydroxyethylidene diphosphonic acid, 10% of maleic anhydride, 25% of phosphated polymaleic acid, and 26% of sodium hydroxide , and the remaining amount is deionized water, which is formed by compounding the above-mentioned raw materials.

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PUM

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Abstract

The present invention relates to an efficient special boiler corrosion and scale inhibitor. The corrosion and scale inhibitor is characterized in that the corrosion and scale inhibitor comprises, by weight, 5-30% of organic phosphine carboxylic acid and a salt of the organic phosphine carboxylic acid, 2-10% of an acrylic copolymer, 20-30% of polymaleic acid phosphate, 10-30% of an alkalinity adjusting agent, 3-10% of an organic deoxidizing agent, and the balance of deionization water. The efficient special boiler corrosion and scale inhibitor of the present invention is a corrosion and scale inhibition compound formula suitable for the primary heat supply network and the secondary heat supply network, and has effects of strong adaptability, convenient use, no side effect and the like.

Description

technical field [0001] The invention relates to an industrial water treatment technology, in particular to a special corrosion and scale inhibitor for high-efficiency boilers. Background technique [0002] The boiler heating network generally includes two parts: the primary heating network and the secondary heating network. The primary heat network refers to the hot water circulation system that directly obtains heat energy from the heat source. The heat source mainly refers to industrial boilers and power plant boilers; the secondary heat network refers to the hot water cycle that the primary heat network obtains heat energy through heat exchange stations. The system generally provides heat directly to users through the secondary heating network. The water quality of the primary heating network is generally demineralized water or deionized water. During the operation of the primary heating network, the main problem brought to the system by this water quality is corrosion. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/14C02F5/10
Inventor 胡艳平
Owner 天津通悦科技有限公司
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