Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-temperature corrosion and scale inhibitor for hot-water heat-supply network of winter heating and preparation method of high-temperature corrosion and scale inhibitor

A corrosion and scale inhibitor, hot water pipe technology, applied in chemical instruments and methods, descaling and water softening, water/sludge/sewage treatment, etc. The problems of poor solubility of azoles and high cost of raw materials can achieve the effect of improving tolerance, good effect and low cost.

Active Publication Date: 2018-11-02
淄博科邦节能环保科技有限公司
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN104591411A provides a slow-release antiscaling method for aluminum plate type cold exchange equipment. The antiscalant provided by this method is only for aluminum plate type hot water network pipes, which has limitations. However, for example, benzotriazole has poor solubility and the raw material High cost, unable to be used on a large scale

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
  • High-temperature corrosion and scale inhibitor for hot-water heat-supply network of winter heating and preparation method of high-temperature corrosion and scale inhibitor
  • High-temperature corrosion and scale inhibitor for hot-water heat-supply network of winter heating and preparation method of high-temperature corrosion and scale inhibitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A high-temperature corrosion and scale inhibitor for heating and hot water pipe network in winter, the formula is: 2 parts of ethylenediaminetetraacetic acid, 0.6 part of polyaspartic acid, 1.2 parts of diethyl sulfate, 0.6 part of carboxymethyl chitosan , 0.2 parts of polyvinylpyrrolidone, 0.2 parts of starch sodium octenylsuccinate, and 0.1 parts of 3-chloro-2-hydroxypropyltrimethylammonium chloride.

[0023] The preparation method is as follows:

[0024] (1) Add 0.6 parts of carboxymethyl chitosan to 3 parts of distilled water, after dissolving, add 3-chloro-2-hydroxypropyltrimethylammonium chloride, stir evenly, heat up to 80-85°C and keep warm Stir for 40-50min, then cool to room temperature to obtain a premix;

[0025] (2) Add water to the mixture of ethylenediaminetetraacetic acid, polyaspartic acid, diethyl sulfate, polyvinylpyrrolidone, and sodium starch octenyl succinate in a mass ratio of 1:1, mix well, and then Add the premix and mix well.

Embodiment 2

[0027] A high-temperature corrosion and scale inhibitor for heating and hot water pipe network in winter, the formula is: 2.5 parts of ethylenediaminetetraacetic acid, 0.5 part of polyaspartic acid, 1.0 part of diethyl sulfate, 0.8 part of carboxymethyl chitosan , 0.3 parts of polyvinylpyrrolidone, 0.1 parts of starch sodium octenyl succinate, and 0.1 parts of 3-chloro-2-hydroxypropyltrimethylammonium chloride.

[0028] The preparation method is the same as in Example 1.

Embodiment 3

[0030] A high-temperature corrosion and scale inhibitor for heating and hot water pipe networks in winter, the formula is: 3 parts of ethylenediaminetetraacetic acid, 0.8 part of polyaspartic acid, 0.8 part of diethyl sulfate, and 0.5 part of carboxymethyl chitosan , 0.4 parts of polyvinylpyrrolidone, 0.3 parts of starch sodium octenylsuccinate, and 0.1 parts of 3-chloro-2-hydroxypropyltrimethylammonium chloride.

[0031] The preparation method is the same as in Example 1.

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

No PUM Login to View More

Abstract

The invention belongs to the technical field of additive chemicals and particularly relates to a high-temperature corrosion and scale inhibitor for a hot-water heat-supply network of winter heating and a preparation method of the high-temperature corrosion and scale inhibitor. The high-temperature corrosion and scale inhibitor comprises the following specific raw materials: 2-3 parts of EDTA, 0.5-0.8 parts of polyaspartic acid, 0.8-1.2 parts of diethyl sulfate, 0.5-0.8 parts of carboxymethyl chitosan, 0.2-0.4 parts of polyvinylpyrrolidone, 0.1-0.3 parts of starch sodium octenyl succinate and 0.1 parts of 3-chloro-2-hydroxypropyltrimethyl ammonium chloride. Under the synergistic action of the raw materials, the corrosion and scale inhibitor has good corrosion and scale inhibition performance and chelates calcium ions to the greatest extent, water scale is prevented, and calcium tolerance can be improved; the corrosion and scale inhibitor can be used at high temperature and has good effect, and service life of the hot-water heat-supply network is prolonged.

Description

technical field [0001] The invention belongs to the technical field of chemical additives, and in particular relates to a high-temperature corrosion and scale inhibitor for heating and hot water pipe networks in winter and a preparation method thereof. Background technique [0002] In winter, indoor heating will be carried out in northern my country, and hot water heating is the most common and commonly used heating method. The heating and hot water pipe network system is prone to corrosion, perforation, and scaling of heat exchangers. The most serious problem is corrosion and scaling. With the increase of heating area and the increase of water supply, it is more difficult to inhibit corrosion and scale. , will greatly shorten the service life of the system and cause serious economic losses. [0003] Due to the oxygen concentration, pH, temperature and other reasons in the water, the heating and hot water network pipes are prone to corrosion. Chinese patent CN104591411A pr...

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
IPC IPC(8): C02F5/12
CPCC02F5/12
Inventor 杨会江田炳兰
Owner 淄博科邦节能环保科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com