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

Method for treating circulating cooling water of high-speed trains

A technology for circulating cooling water and treatment methods, applied in water/sludge/sewage treatment, special treatment targets, chemical instruments and methods, etc., can solve the problems of accelerated corrosion and prone to corrosion, and achieve rapid treatment and efficient methods Effect

Inactive Publication Date: 2019-03-26
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, circulating water with high iron content is prone to corrosion and promotes microbial reproduction, which further accelerates corrosion

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
  • Method for treating circulating cooling water of high-speed trains
  • Method for treating circulating cooling water of high-speed trains
  • Method for treating circulating cooling water of high-speed trains

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0017] According to one embodiment, the total iron content of the high-speed iron circulating cooling water is 2.0-3.0 mg / L.

[0018] In this embodiment, the complexing agent is selected from one of the following combinations: disodium edetate and tartaric acid, citric acid and disodium edetate, triethanolamine and sodium alginate, Tartrate and Triethanolamine, Sodium Alginate and Citric Acid, Sodium Gluconate and Dimercaptopropanol, Hydroxylamine Hydrochloride and Tartrate, Dimercaptopropanol and Citrate, Citrate and Hydroxylamine Hydrochloride, Tartaric Acid and Sodium Gluconate.

[0019] Preferably, the complexing agent is selected from one of the following combinations: triethanolamine and sodium alginate, tartrate and triethanolamine, sodium alginate and citric acid, hydroxylamine hydrochloride and tartrate, tartaric acid and sodium gluconate , which can further reduce the corrosion of high-speed rail circulating cooling water.

[0020] More preferably, the complexing ag...

Embodiment 1-10 and comparative example 1-3

[0050] Add compound complexing agent (composed of complexing agent A and complexing agent B) to test water 1 and test water 2 respectively, and add scale and corrosion inhibitor 1 to In test water 1 and 2, the effective concentrations of PBTCA, HEDP, and terpolymer in the water are respectively 4mg / L, 4mg / L, and 8mg / L. As shown in table 2.

Embodiment 11

[0052] Process test water 1 and 2 according to the method of Example 1, the difference is that the scale and corrosion inhibitor 2 of the same quality is used to replace the scale and corrosion inhibitor 1 of Example 1, so that sodium hexametaphosphate, HPAA and binary The effective concentrations of the copolymers are 4mg / L, 4mg / L and 8mg / L respectively.

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
Corrosion rateaaaaaaaaaa
Adhesion rateaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of circulating water treatment, and provides a method for treating circulating cooling water of high-speed trains. The method comprises the step of adding scale andcorrosion inhibitor and a compound complexing agent into high-speed train circulating cooling water, wherein the scale and corrosion inhibitor is prepared from organic phosphorous and copolymer, and the compound complexing agent is selected from at least two of dimercaprol dimercaptopropanol, tartaric acid, tartrate, triethanolamine, citric acid, citrate, ethylene diamine tetraacetic acid, hydroxylamine hydrochloride, sodium gluconate and sodium alginate. The treatment method can reduce the corrosion speed of cooling water for carbon steel to the grade of 'very good' or 'good' for carbon steelcorrosion speed specified in the cooling water analysis and test method; and furthermore, the method can avoid the process of replacing circulating cooling water in the system with a great number offresh water to control corrosion in the prior art, is quick, efficient, safe and reliable, and is suitable for quick treatment of a high-speed train circulating water system.

Description

technical field [0001] The invention relates to the field of circulating water treatment, in particular to a treatment method for high-speed railway circulating cooling water. Background technique [0002] The treatment of circulating cooling water mainly solves the three major problems of corrosion, scaling and microbial hazards in the circulating water system. At present, in China, according to the characteristics of each water quality, each circulating water system either uses the natural pH operation process without acid addition and the corresponding pharmaceutical formula, or uses the acid pH adjustment process and the corresponding formula. [0003] During operation, the circulating water system controls various water quality indicators. The Sinopec enterprise standard "Technical Requirements for Water Management Part 2: Circulating Water" (Q / SH 0628.2-2014) requires total iron in rehydration ≤ 0.5mg / L and total iron in circulating water ≤ 1.0mg / L. In the case of ab...

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): C02F5/14C02F5/10
CPCC02F5/10C02F5/14C02F2303/08
Inventor 张化冰任志峰刘金香杨玉魏新常磊
Owner CHINA PETROLEUM & CHEM CORP
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