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

Liquor used for online cleaning of dry quenching condenser, preparation method and method for online cleaning

A technology for condenser and dry quenching, which is applied in the field of condenser on-line cleaning and on-line cleaning, can solve the problems such as the ineffective cleaning effect of the condenser cleaning liquid and the inconvenient on-line cleaning of the condenser, so as to shorten the cleaning time. Time, low toxicity, high water solubility

Active Publication Date: 2019-11-29
SICHUAN DAXING ENERGY
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a chemical solution for on-line cleaning of coke CDQ condensers, a preparation method and an on-line cleaning method to solve the problem that the cleaning effect of the existing condenser cleaning chemical solution is not obvious and the condenser is on-line. The problem of inconvenient cleaning

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
  • Liquor used for online cleaning of dry quenching condenser, preparation method and method for online cleaning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The medicinal solution for on-line cleaning of CDQ condensers in this embodiment includes: in parts by weight, 40 parts of mixed acid, 10 parts of corrosion inhibitor, 10 parts of penetrant, 10 parts of defoamer, 5 parts of chelating agent 30 parts of water and 30 parts;

[0029] Wherein, the mixed acid includes: sulfuric acid, sulfamic acid and 2-carboxyethyl phosphoric acid, and their respective mass ratios are 1:0.8:0.6;

[0030] The chelating agent includes: hydroxyethylthiosuccinic acid and diethyltriaminepentaacetic acid, and their respective mass ratios are 1:0.1;

[0031] The penetrating agent is: sodium succinate sulfonate; the defoaming agent is polyoxyethylene octylphenol ether;

[0032] The corrosion inhibitors include: urotropine, tolyltriazole, ammonium thiocyanate and 1,3-dithiosemicarbazide, and their respective mass ratios are 1:0.5:0.75:0.5.

[0033] The preparation method of the medicinal solution for online cleaning of the coke dry quenching conden...

Embodiment 2

[0036] The medicinal solution for on-line cleaning of CDQ condensers in this embodiment includes: in parts by weight, 50 parts of mixed acid, 15 parts of corrosion inhibitor, 13 parts of penetrating agent, 11 parts of defoamer, 6 parts of chelating agent parts and 35 parts of water;

[0037] Wherein, the mixed acid includes: sulfuric acid, sulfamic acid and 2-carboxyethyl phosphoric acid, and their respective mass ratios are 1:0.85:0.65;

[0038] The chelating agent includes: hydroxyethylthiosuccinic acid and diethyltriaminepentaacetic acid, and their respective mass ratios are 1:0.15;

[0039] The penetrating agent is: sodium succinate sulfonate; the defoaming agent is polyoxyethylene octylphenol ether;

[0040] The corrosion inhibitors include: urotropine, tolyltriazole, ammonium thiocyanate and 1,3-dithiosemicarbazide, and their respective mass ratios are 1:0.6:0.8:0.6.

[0041] The preparation method of the medicinal solution for online cleaning of the coke dry quenching...

Embodiment 3

[0044]The medicinal solution for on-line cleaning of CDQ condensers in this embodiment includes: in parts by weight, 55 parts of mixed acid, 17 parts of corrosion inhibitor, 15 parts of penetrating agent, 12 parts of defoamer, 7 parts of chelating agent 40 parts and 40 parts of water;

[0045] Wherein, the mixed acid includes: sulfuric acid, sulfamic acid and 2-carboxyethyl phosphoric acid, and their respective mass ratios are 1:0.9:0.7;

[0046] The chelating agent includes: hydroxyethylthiosuccinic acid and diethyltriaminepentaacetic acid, and their respective mass ratios are 1:0.2;

[0047] The penetrating agent is: sodium succinate sulfonate; the defoaming agent is polyoxyethylene octylphenol ether;

[0048] The corrosion inhibitors include: urotropine, tolyltriazole, ammonium thiocyanate and 1,3-dithiosemicarbazide, and their respective mass ratios are 1:0.65:0.85:0.7.

[0049] The preparation method of the medicinal solution for online cleaning of the coke dry quenchin...

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 discloses liquor used for online cleaning of a dry quenching condenser, a preparation method and a method for online cleaning, and belongs to the technical field of online cleaning of condensers. The liquor comprises, by weight, 40-70 parts of mixed acid, 10-25 parts of a corrosion inhibitor, 10-20 parts of a penetrating agent, 10-15 parts of a defoaming agent, 5-10 parts of a chelating agent and 30-50 parts of water. The mixed acid comprises sulfuric acid, sulfamic acid and 2-carboxylethic acid. The chelating agent comprises hydroxyethyl thiosuccinic acid and diethylene triaminepenlaacetic acid. Sodium succinate sulfonate serves as the penetrating agent. Polyoxyethylene octyl phenol ether serves as the defoaming agent. The liquor used for online cleaning of the dry quenching condenser is high in dirt dissolving capacity, good in cleaning effect, safe, environment-friendly and free of pollution to the environment. The method for online cleaning is short in time and low in cost, the dirt removal rate is larger than 85%, and the cleaning effect is remarkable.

Description

technical field [0001] The invention relates to the technical field of on-line cleaning of condensers, in particular to a medicinal solution for on-line cleaning of coke dry quenching condensers, a preparation method and an on-line cleaning method. Background technique [0002] In the coke CDQ production system, the steam condensing equipment in the power generation unit is an important heat exchange equipment, which acts as a heat exchanger to condense the exhaust gas of the steam turbine into water, and to form and maintain the required vacuum. Condensing equipment includes condensers, air extractors, condensate pumps and circulating water pumps, of which the condenser is the most important component. The condenser is the cold source in the whole thermodynamic cycle. Its main function is to form a relatively high vacuum at the exhaust port of the steam turbine, so that the steam expands to the lowest pressure in the steam turbine, increases the available enthalpy drop of t...

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): C23G1/08C23G1/04F28G9/00
CPCC23G1/04C23G1/088F28G9/00
Inventor 张光辉李正清唐德江陈伟肖发兵李兴瑜徐苇
Owner SICHUAN DAXING ENERGY
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