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GB/T 31819-2023: Anti-corrosion technical specification for liquid fluorubber coated flue gas desulfurization (FGD)chimney
Status: Valid GB/T 31819: Evolution and historical versions
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| GB/T 31819-2023 | English | 349 |
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Anti-corrosion technical specification for liquid fluorubber coated flue gas desulfurization (FGD)chimney
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GB/T 31819-2023
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| GB/T 31819-2015 | English | 599 |
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Anti-corrosion technical specification for liquid fluorubber coated FGD chimney
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GB/T 31819-2015
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PDF similar to GB/T 31819-2023
Basic data | Standard ID | GB/T 31819-2023 (GB/T31819-2023) | | Description (Translated English) | Anti-corrosion technical specification for liquid fluorubber coated flue gas desulfurization (FGD)chimney | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A29 | | Classification of International Standard | 87.020 | | Word Count Estimation | 18,132 | | Date of Issue | 2023-09-07 | | Date of Implementation | 2024-04-01 | | Older Standard (superseded by this standard) | GB/T 31819-2015 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 31819-2023: Anti-corrosion technical specification for liquid fluorubber coated flue gas desulfurization (FGD)chimney
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ICS 87.020
CCSA29
National Standards of People's Republic of China
Replace GB/T 31819-2015
Chimney corrosion resistance after liquid fluorine rubber coating and desulfurization
Operating technical specifications
Published on 2023-09-07
2024-04-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
PrefaceⅠ
1 Scope 1
2 Normative reference documents 1
3 Terms and Definitions 2
4 Grassroots processing 3
4.1 Brick or concrete base3
4.2 Steel structure base 4
5 Fluorine rubber lining operation 4
5.1 General provisions 4
5.2 Material index 4
5.3 Matching material ratio 8
5.4 Fluorine rubber lining structural system operation 8
5.5 Completion maintenance and quality control of fluororubber lining system10
6 Occupational safety11
7 Project acceptance 12
Reference 14
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document replaces GB/T 31819-2015 "Technical Specifications for Chimney Corrosion Resistance Operation after Desulfurization of Liquid Fluorine Rubber Coating" and is consistent with
Compared with GB/T 31819-2015, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
a) Changed the "base repair material", "liquid fluororubber surface layer", "modified liquid fluororubber sheet" and "liquid fluororubber lining structural system"
Terms and definitions (see 3.4, 3.7, 3.8, 3.10, 3.4, 3.8, 3.9, 3.11 of the.2015 edition), the term "reinforcement material" has been changed
The definition of "elastic structural layer containing short fiber filaments" (see 3.5, 3.6,.2015 version of 3.5, 3.6) deletes the term "fluorine-containing structure"
"Layer" and its definition (see 3.7 of the.2015 version);
b) Changed the grassroots strength index (see 4.1.1, 4.1.1 of the.2015 version);
c) Changed the anti-corrosion surface flatness index (see 4.1.2,.2015 version of 4.1.2);
d) Added requirements for surface roughness of the treated steel structure and construction environment requirements when using different materials (see 4.2.3,
4.2.7);
e) The requirements for the heat resistance grade of the underlying material in fluororubber lining operations have been changed (see 5.2.1, 5.2.1 of the.2015 edition);
f) Changed the underlying material indicators of Type A (Type I, Type II) (see Table 1, Table 1 of the.2015 version);
g) Changed the material index of the middle layer of the elastic structure (see Table 3, Table 3 of the.2015 version);
h) The project test conditions, construction intervals and impermeability test methods of base repair materials have been changed, and the bulk density, resistance and permeability test methods have been deleted.
Water resistance, volumetric water absorption, normal temperature compressive strength and drying time requirements (see Table 4,.2015 version of Table 4);
i) The heat aging resistance performance requirements and test methods of (Type A) liquid fluororubber surface material have been changed, and third-party testing indicators have been deleted.
Requirements (see Table 5,.2015 version of Table 5);
j) Changed the acid resistance performance requirements, heat aging resistance performance requirements and test methods of (B type) modified liquid fluororubber sheets, and deleted the first
Third-party testing indicator requirements (see Table 6,.2015 version of Table 6);
k) The base repair layer material in fluororubber lining operations has been changed [see 5.4.3a),.2015 version of 5.4.3b)];
l) Change the informative reference HG/T 20677 to the normative reference HG/T 20677 (see 5.4.6, 5.4.5 of the.2015 version);
m) Delete the detection methods and fluorine-containing structural layer items in the material thickness requirements for each process in the liquid fluororubber lining, and change some
Project thickness technical indicators (see Table 7,.2015 version of Table 7);
n) Changes in heating maintenance requirements (see 5.5.2,.2015 version of 5.5.2);
o) Changed the thickness index of each item in the main process operations of the liquid fluorine rubber lining system, and deleted the detection method and fluorine-containing structure
For layer projects, process design requirements are added (see Table 9, Table 9 of the.2015 version);
p) Changed the flatness index for different thicknesses of anti-corrosion surface layer of fluorine rubber lining (see 5.5.6,.2015 version of 5.5.6);
q) The safety regulations for on-site operations have been changed (see 6.1, 6.1 of the.2015 edition);
r) The project acceptance requirements have been changed [see 7.1~7.4, 7.6f)].
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is proposed by China Petroleum and Chemical Industry Federation.
This document is under the jurisdiction of the National Corrosion Control Standardization Technical Committee (SAC/TC381).
This document was drafted by. Chongqing Dazhong Anti-Corrosion Co., Ltd., Huaneng Chongqing Luohuang Power Generation Co., Ltd., China Corrosion International Corrosion Control
Manufacturing Engineering Technology Research Institute (Beijing) Co., Ltd., China Huaneng Group Co., Ltd., Huaneng International Power Co., Ltd., State Grid Smart Power
Net Research Institute Co., Ltd., China Corrosion Control Technology Association, National Energy Group New Energy Technology Research Institute Co., Ltd., China Datang Group
Co., Ltd., China Energy Construction Group Xinjiang Electric Power Design Institute Co., Ltd., Henan Special Defense Construction Group Co., Ltd., Jiangsu Jinling Special Coating
Materials Co., Ltd., Zhejiang Tiantie Industrial Co., Ltd., Zhejiang Weihua New Materials Co., Ltd., Anhui Shenheng Engineering Construction Group Co., Ltd.,
Henan Puxin Anti-corrosion Construction Engineering Co., Ltd., Henan Sihai Anti-corrosion Group Co., Ltd., Tianjin Qianfeng Anti-corrosion Insulation Engineering Co., Ltd.
Division, Henan No. 1 Anti-Corrosion Engineering Co., Ltd.
The main drafters of this document. Tang Jian, Wen Chengming, Wang Guiming, Wang Liguo, Bao Yingjie, Wu Xun, Zeng Duo, Liu Siyu, Wang Tao, Li Zhen, Zhao Guangyao,
Li Jike, Zhuo Hua, Han Jing, Meng Qingqing, Zhang Kaijun, Zheng Shaoming, Hu Guichun, Wang Yaofa, Xia Pengxing, Bian Zhibing, Xu Jizhuan, Chen Jun, Jin Yongjun,
Jin Guan, Du Kaiyan, Zhao Xiangyue, Li Xianxiu, Liu Tao, Lin Zhenshun.
This document was first published in.2015 and this is the first revision.
Chimney corrosion resistance after liquid fluorine rubber coating and desulfurization
Operating technical specifications
1 Scope
This document stipulates the base treatment of chimney corrosion resistance after liquid fluororubber coating and desulfurization, fluororubber lining operations, operation safety, materials
Indicators and project acceptance requirements.
This document is applicable to the corrosion resistance of new and old reinforced concrete chimneys, steel chimneys, brick chimneys and other exhaust pipe linings after wet desulfurization in thermal power plants.
Materials and assignments.
Note. Fluorine rubber lining operations refer to liquid fluororubber lining structural system operations (Type A) and modified liquid fluororubber sheet lining structural system operations (Type B).
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 528 Determination of tensile stress and strain properties of vulcanized rubber or thermoplastic rubber
GB/T 1690 Test method for liquid resistance of vulcanized rubber or thermoplastic rubber
GB/T 3512 Hot air accelerated aging and heat resistance test of vulcanized rubber or thermoplastic rubber
GB/T 7124 Determination of tensile shear strength of adhesives (rigid material to rigid material)
GB/T 7760 Determination of bonding strength between vulcanized rubber or thermoplastic rubber and hard plate - 90° peeling method
GB/T 8923.1-2011 Visual assessment of surface cleanliness of steel surface preparation before application of coatings Part 1.Uncoated
The corrosion grade and treatment grade of the steel surface and the steel surface after the original coating has been completely removed
GB/T 9266 Determination of scrubbing resistance of architectural coatings
GB/T 16777-2008 Test methods for building waterproof coatings
GB/T 18241.1 Rubber lining Part 1.Equipment anti-corrosion lining
GB/T 19155 Suspended basket for working at heights
GB/T 19250 Polyurethane waterproof coating
GB/T 23445 Polymer cement waterproof coating
GB/T 45001 Occupational health and safety management system requirements and usage guidelines
GB/T 50046 Anti-corrosion design standards for industrial buildings
GB/T 50051 Chimney engineering technical standards
GB 50212 Construction specifications for anti-corrosion projects in buildings
GB/T 50224 Construction quality acceptance standards for building anti-corrosion projects
GB 50300 Uniform Standard for Construction Quality Acceptance of Construction Projects
GB/T 50315 Technical standards for on-site inspection of masonry projects
GB 50726 Construction specifications for industrial equipment and pipeline anti-corrosion projects
JJG693 combustible gas detection alarm
DL/T 693 Acid-resistant and anti-corrosion coating for chimney concrete
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