Ternary polymerization type corrosion and scale inhibitor for central air-conditioning circulating cooling water and preparation method thereof

A technology of circulating cooling water and corrosion and scale inhibitors, applied in chemical instruments and methods, compositions for inhibiting chemical changes, water pollutants, etc. Corrosion, scale inhibition and comprehensive requirements for sterilization and antibacterial, etc., to solve the problem of water quality deterioration, conducive to safe and stable operation, and the effect of low dosing concentration

Active Publication Date: 2016-03-09
GUANGZHOU SPECIAL PRESSURE EQUIP INSPECTION & RES INST
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above two have excellent scale inhibition performance on calcium phosphate scale and calcium carbonate scale, their formulas and operation methods are complicated, and cannot effectively meet the overall requirements of the circulating cooling water system for corrosion inhibition, scale inhibition, sterilization and antibacterial

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ternary polymerization type corrosion and scale inhibitor for central air-conditioning circulating cooling water and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A ternary polymerization type corrosion and scale inhibitor for central air-conditioning circulating cooling water, polyaspartic acid 20g, polyepoxysuccinic acid 15g, hydroxyethylidene diphosphonic acid 12g, ZnSO 4 0.6 g of the solid was successively dissolved in 1000 ml of deionized water. The temperature was raised to 65°C, and under the condition of stirring, the above polymer solution was kept warm for 5 hours and then cooled to obtain the ternary polymerization mother liquor.

[0027] In 1L of central air-conditioning circulating cooling water, first add 100mg of tourmaline directly or through a recyclable tourmaline dosing device, and then directly add 1mg of ternary polymerization mother liquor. Tourmaline can be recycled and recycled.

Embodiment 2

[0029] A ternary polymerization type corrosion and scale inhibitor for central air-conditioning circulating cooling water, polyaspartic acid 20g, polyepoxysuccinic acid 18g, hydroxyethylidene diphosphonic acid 12g, polymaleic acid 15g, ZnSO 4 0.6 g of the solid was successively dissolved in 1000 ml of deionized water. The temperature was raised to 65°C, and under the condition of stirring, the above polymer solution was kept warm for 5 hours and then cooled to obtain the ternary polymerization mother liquor.

[0030] In 1L of central air-conditioning circulating cooling water, first add 100mg of tourmaline directly or through a recyclable tourmaline dosing device, and then directly add 1mg of ternary polymerization mother liquor. Tourmaline can be recycled and recycled.

Embodiment 3

[0032] A ternary polymerization type corrosion and scale inhibitor for central air-conditioning circulating cooling water, polyaspartic acid 15g, polyepoxysuccinic acid 10g, polymaleic acid 10g, ZnSO 4 0.6 g of the solid was successively dissolved in 1000 ml of deionized water. The temperature was raised to 55°C, and under the condition of stirring, the above polymer solution was incubated and reacted for 4 hours, and then cooled to obtain the terpolymerization type mother liquor.

[0033] In 1L of central air-conditioning circulating cooling water, first add 120mg of tourmaline directly or through a recyclable tourmaline dosing device, and then directly add 1mg of ternary polymerization mother liquor. Tourmaline can be recycled and recycled.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
hardnessaaaaaaaaaa
hardnessaaaaaaaaaa
corrosion rateaaaaaaaaaa
Login to view more

Abstract

The invention discloses a ternary polymerization corrosion and scale inhibitor for central air-conditioning circulating cooling water, which consists of tourmaline, polyaspartic acid, polyepoxysuccinic acid, polymaleic acid and hydroxyethylidene diphosphine acid, zinc salt, etc. Among them, the amount of tourmaline is 5-500g / t (calculated as solid), and the amount of polyaspartic acid, polyepoxysuccinic acid, polymaleic acid and hydroxyethylidene diphosphonic acid is 2-60g / t (calculated as solid). liquid meter), the dosage of zinc salt is 0.2-0.8g / t. The corrosion and scale inhibitor formula provided by the invention has excellent performance, simple preparation method, convenient use, low dosing concentration, etc., and has broad application prospects and economic value.

Description

technical field [0001] The invention relates to a corrosion and scale inhibitor, which belongs to the technical field of circulating cooling water treatment, in particular to a corrosion and scale inhibitor for central air-conditioning circulating cooling water and a preparation method thereof. Background technique [0002] The central air-conditioning circulating water system is generally divided into three parts, namely cooling water system, chilled water system and heating water system. Among them, the circulating cooling water is mostly open, and the chilled water and heating water are mostly closed. In the open circulating cooling water system, the water is in constant contact with the atmosphere, and the dissolved oxygen increases, which is likely to cause electrochemical corrosion; the continuous evaporation of the cooling water makes the salt content in the circulating water gradually increase, and the CO in the water 2 escape, making CaCO in water 3 The tendency o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C02F5/10C02F5/14
CPCC02F5/12C02F2303/08C02F2101/10C23F11/08C23F14/02C02F5/083C02F5/105C02F5/125C02F5/145C09K15/328
Inventor 杨波李茂东陈志刚叶伟文黎华赵军明张辉林金梅喻文曾鸣尹宗杰刘娟
Owner GUANGZHOU SPECIAL PRESSURE EQUIP INSPECTION & RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap