Supercharge Your Innovation With Domain-Expert AI Agents!

Corrosion-resistant chimney lining structure and corrosion-resistant method for chimney

A chimney lining and anti-corrosion technology, applied in building construction, building maintenance, building types, etc., can solve problems such as structural damage of chimneys, and achieve the effects of reducing load-bearing burden, saving construction, and being lightweight, high-strength, and designable.

Inactive Publication Date: 2015-02-25
SHANGHAI YILV ENVIRONMENTAL PROTECTION TECHCO
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary single-tube chimney lining is generally made of clay bricks, refractory bricks or acid-resistant bricks with acid-resistant castables or acid-resistant mortar, or made of acid-resistant castables as a whole, and the anti-corrosion layer is composed of acid-resistant materials. Under the condition of wet flue gas after desulfurization, the concentration of sulfuric acid is generally below 5%, and the acid-resistant cement anti-corrosion layer can be soaked in about 2.5 years, thus causing structural damage to the chimney

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
  • Corrosion-resistant chimney lining structure and corrosion-resistant method for chimney
  • Corrosion-resistant chimney lining structure and corrosion-resistant method for chimney

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In the first aspect, the present invention provides a kind of anti-corrosion chimney lining structure and chimney anti-corrosion method, and its chimney is a new anti-corrosion chimney or a single-tube chimney under construction, and its structure includes in turn from outside to inside: reinforced concrete cylinder 1 , insulation layer 2, FRP lining 3, the FRP lining 3 adopts vitrified foam brick lining structure, the material adopts light vitrified foam brick, and forms an independent smoke exhaust structure as a whole, except for the FRP lining Parts other than 3 are only load-bearing structures.

[0027] The construction scheme of the newly-built anti-corrosion chimney is constructed according to conventional technology, and only the original anti-corrosion inner layer of the chimney in the prior art is replaced with a vitrified foam brick lining.

[0028] For the newly built anti-corrosion chimney, the innermost layer of the chimney is lined with vitrified foam bri...

Embodiment 2

[0031] The present invention can also carry out anti-corrosion transformation on the existing single-tube chimney, which adopts the method of separating the flue gas from the original chimney 4, sets the original chimney 4 as a load-bearing structure, and adds vitrified glass to the innermost layer of the original chimney 4 Foam brick lining structure 5.

[0032] Described monotube chimney, its modification method comprises the steps:

[0033] (1) Pre-treat the inner wall of the single-tube chimney;

[0034] (2) A vitrified foam brick lining structure is added to the inner wall after pretreatment. The specific process is as follows:

[0035] a. Remove part of the lining at the corbel of the chimney, so that the corbel is partially exposed, so that the vitrified foam brick lining can be supported on the corbel in sections;

[0036] b Anti-corrosion treatment on the corbel: Wrap the corbel with lightweight vitrified foam bricks and fully expose it.

[0037] The method include...

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 a corrosion-resistant chimney lining structure and a corrosion-resistant method for a chimney. The chimney is a corrosion-resistant chimney newly built or a single cylinder chimney under construction. The corrosion-resistant chimney lining structure structurally comprises a reinforced concrete cylinder, a heat preserving layer and a glass reinforced plastic inner lining in sequence from outside to inside. The glass reinforced plastic inner lining is of a vitrification foaming brick lining structure, and is made of light vitrification foaming bricks, and the whole glass reinforced plastic inner lining forms an independent smoke exhausting structure. The parts except the inner lining are of bearing structures. A built single cylinder chimney can be improved in a corrosion-resistant mode, the method for separating smoke and an original chimney is adopted, the original chimney is arranged to be of a bearing structure, and a vitrification foaming brick inner lining structure is additionally arranged on the innermost layer of the original chimney. The original chimney and acid liquid are completely separated, the original chimney is not corroded, the bearing burden of the original chimney can be reduced, and the corrosion-resistant chimney lining structure is beneficial for saving labor for construction.

Description

technical field [0001] The invention relates to the field of chimney anticorrosion, in particular to an anticorrosion chimney lining structure and a chimney anticorrosion method. Background technique [0002] At present, the flue gas desulfurization device system is complex, the area to be protected from corrosion is large, and the corrosion rate is fast after the corrosion resistance fails. After desulfurization, the temperature of the flue gas is low, the suction force is small, the flow rate is slow, and the flue gas accumulation is easy to occur. The acid content in the flue gas condensate is low, and the low-concentration acid solution is more corrosive than the high-concentration acid solution. In addition to sulfuric acid and sulfurous acid, the flue gas condensate also contains chlorides and fluorides. The presence of these substances will greatly increase the corrosion resistance. Based on the above reasons, corresponding anti-corrosion facilities or anti-corrosion...

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): E04H12/28E04H12/02E04H12/12E04G23/02
CPCE04H12/02E04H12/12E04H12/28
Inventor 李启龙朱文远孔慧
Owner SHANGHAI YILV ENVIRONMENTAL PROTECTION TECHCO
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com