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GB/T 31104-2024: Steel dryers used in paper machinery
Status: Valid GB/T 31104: Evolution and historical versions
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| GB/T 31104-2024 | English | 509 |
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Steel dryers used in paper machinery
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GB/T 31104-2024
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| GB/T 31104-2014 | English | 259 |
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Specification for steel paper machine dryer
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GB/T 31104-2014
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Standard similar to GB/T 31104-2024 GB/T 51033 GB/T 50082 GB/T 31104 Basic data | Standard ID | GB/T 31104-2024 (GB/T31104-2024) | | Description (Translated English) | Steel dryers used in paper machinery | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Y91 | | Classification of International Standard | 85.100 | | Word Count Estimation | 25,241 | | Date of Issue | 2024-10-26 | | Date of Implementation | 2025-05-01 | | Older Standard (superseded by this standard) | GB/T 31104-2014 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 31104-2024: Steel dryers used in paper machinery---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT31104-2024
ICS 85.100
CCSY91
National Standard of the People's Republic of China
Replaces GB/T 31104-2014
Steel drying cylinders for papermaking machinery
Released on October 26, 2024
Implementation on May 1, 2025
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 2
4 Symbols 4
5 Classification and structure 5
5.1 Classification 5
5.2 Structure 5
6 Materials 7
7 Design 9
7.1 General requirements 9
7.2 Load 9
7.3 Structural Design 10
8 Manufacturing 12
8.1 Basic Requirements 12
8.2 Preheating before welding 12
8.3 Welding and heat treatment 13
8.4 Machining and Appearance Quality 13
8.5 Nondestructive Testing 14
8.6 Pressure test and leakage test 14
8.7 Balance test 14
8.8 Others15
9 Acceptance 15
10 Coating, marking, packaging, transportation and storage 15
10.1 Basic Requirements 15
10.2 Coating 15
10.3 Sign 15
10.4 Packaging 16
10.5 Transportation 16
10.6 Storage 16
Appendix A (Normative) Hybrid Structure Drying Cylinder 17
A.1 Structural features 17
A.2 Materials 18
A.3 Design 18
A.4 Manufacturing, inspection and acceptance 18
Reference 19
Preface
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document replaces GB/T 31104-2014 "Technical Specifications for Steel Drying Cylinders for Papermaking Machinery" and is consistent with GB/T 31104-2014.
In addition to structural adjustments and editorial changes, the main technical changes are as follows.
a) The scope of application of the document has been changed (see Chapter 1, Chapter 1 of the.2014 edition);
b) “Terms and Definitions” has been modified (see Chapter 3, Chapter 3 of the.2014 edition);
c) Added two chapters. "Symbols" and "Classification and Structure" (see Chapters 4 and 5);
d) The material standards for manufacturing drying cylinders have been changed (see Table 1, Table 1 of the.2014 edition);
e) The requirements for the use of Q235B and Q235C steel plates (see 5.3 of the.2014 edition) have been deleted;
f) Changed the ultrasonic testing quality level requirements for cylinder blocks and cylinder heads with a thickness greater than 30 mm (see 6.6,.2014 edition).
5.7);
g) Added requirements for the thickness direction properties of carbon steel and low alloy steel plates (see 6.7);
h) Added requirements for studs (including bolts) (see 6.10 to 6.12);
i) Changed “General Principles” to “Design”, and modified the contents of “General Requirements”, “Loads” and “Structural Design” (see Chapter 7,.2014 Edition).
Chapter 4);
j) Deleted the calculation of support ring (see 4.3.2.3 of the.2014 edition);
k) The requirements for double-layer structure cylinders have been deleted (see 4.3.2.4 of the.2014 edition);
l) Changed the requirements for the manhole and handhole structure of the drying cylinder (see 7.3.3.6, 4.3.3.7 of the.2014 edition);
m) The requirement that the shaft head be made of forgings has been deleted (see 4.3.4.3 of the.2014 edition);
n) Added the content of “preheating before welding” (see 8.2);
o) The requirements for full penetration single-sided welds have been deleted (see 6.2.3 of the.2014 edition);
p) Deleted the requirement for overall heat treatment of the drying cylinder (see 6.2.6 of.2014);
q) The machining requirements data table has been changed (see Table 3, Table 2 of the.2014 edition);
r) Added non-destructive testing requirements for drying cylinder welded butt joints (see 8.5.2);
s) Changed the ultrasonic testing qualification level requirements for the T-type welded joints between the cylinder head and the cylinder block (see 8.5.5, 6.4.4 of the.2014 edition);
t) The leakage test requirements for drying cylinders containing thermal oil or other flammable or toxic media have been deleted (see 6.5.3 of the.2014 edition);
u) Changed the dynamic balance quality level requirements (see 8.7.2, 6.6.2 of the.2014 edition);
v) Added installation and connection requirements for components inside the drying cylinder (see 8.8.3);
w) Added the content of factory technical data (see 9.1);
x) Added coating requirements (see 10.2);
y) The content of the product nameplate has been changed (see 10.3.3, 7.2.3 of the.2014 edition);
z) The content on indicating special requirements for steel materials in drawings or corresponding design documents has been deleted (see 7.2.6 of the.2014 edition);
aa) Added content on mixed structure drying cylinder (see Appendix A).
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Light Industry Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Light Industry Machinery (SAC/TC101).
This document was drafted by. Light Industry Hangzhou Mechanical and Electrical Design Institute Co., Ltd., Liyang Jiangnan Drying Cylinder Manufacturing Co., Ltd., Tianjin Science and Technology
University, Valmet (China) Co., Ltd., Voith Paper (China) Co., Ltd., Qilu University of Technology (Shandong Academy of Sciences), Zhejiang Province Special
Equipment Science Research Institute, Guangdong Special Equipment Testing Institute Dongguan Testing Institute, Shandong Kaixin Heavy Machinery Co., Ltd., Dandong Shengxing Paper Machine
Machinery Co., Ltd., Baicheng Fujia Technology Co., Ltd., Dongguan Shendian Nano Spraying Technology Co., Ltd., Qinyang No. 1 Paper Machinery Co., Ltd.
Company, Jilin City Special Equipment Inspection Center (Jilin City Special Equipment Accident Investigation Service Center).
The main drafters of this document are. Zhang Weimin, He Weizhong, Bian Xuexun, Tang Yuping, Zhou Caiming, Xu Chonghai, Ye Yufeng, Hou Jichuan, Jia Keqin, Shi Hanyun,
Wang Xiangchao, Chen Zun, Zhang Gongwen, Lin Hongwei, Li Feng, Wu Kuanglan, Lü Hongyu, Duan Yangzhong, Xiao Guangchun, Cai Gangyi, Ma Zhaohui, Feng Shujun, Pan Qiquan,
Chen Xi, Song Yangbo, Hu Jinyan, Liu Zhiping, Yan Chenghui, Chen Hui, Li Wei, Zhu Tianheng, and Lan Chunlin.
The previous versions of this document and the documents it replaces are as follows.
---First published in.2014 as GB/T 31104-2014;
---This is the first revision.
Steel drying cylinders for papermaking machinery
1 Scope
This document defines the relevant terms, definitions and symbols, and stipulates the classification and
Structure, material, design, manufacture, acceptance, coating, marking, packaging, transportation and storage, and the corresponding test methods are described.
This document is applicable to steel drying cylinders used for heat transfer in papermaking machinery, where the internal working medium is water vapor. This document is also applicable to other industries.
Similar working conditions, such as food drying, printing and dyeing textile drying, leather processing, wood processing, etc.
The outer diameters and design pressures of the steel drying cylinders to which this document applies are as follows.
---When the outer diameter of the drying cylinder is not greater than 8000mm, the design pressure shall not exceed 1.2MPa;
---When the outer diameter of the drying cylinder is less than 3000mm, the design pressure is less than 1.6MPa.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 150-2024 (all parts) Pressure Vessels
GB/T 151 Heat Exchangers
GB/T 191 Pictorial markings for packaging, storage and transportation
GB/T 699 High-quality carbon structural steel
GB/T 700 Carbon Structural Steel
GB/T 713.2 Steel plates and strip for pressure equipment Part 2.Non-alloy steels and alloy steels with specified temperature properties
GB/T 713.7 Steel plates and strips for pressure equipment Part 7.Stainless steel and heat-resistant steel
GB/T 985.1 Recommended grooves for gas welding, arc welding, gas shielded welding and high energy beam welding
GB/T 985.2 Recommended groove for submerged arc welding
GB/T 1220 Stainless steel bars
GB/T 3077 Alloy Structural Steel
GB/T 3087 Seamless steel tubes for low and medium pressure boilers
GB/T 3274 Hot-rolled carbon structural steel and low-alloy structural steel plates and strips
GB/T 3280 Stainless steel cold-rolled steel sheet and strip
GB/T 4272 General technical rules for thermal insulation of equipment and pipelines
GB/T 4732.3 Analysis and design of pressure vessels Part 3.Formula method
GB/T 5117 Welding rods for non-alloy steel and fine grain steel
GB/T 5118 Heat-resistant steel welding rods
GB/T 5293 Classification requirements for solid welding wires, flux-cored welding wires and wire-flux combinations for non-alloy steel and fine-grained steel for submerged arc welding
GB/T 5310 Seamless steel tubes for high-pressure boilers
GB/T 5313-2023 Thickness properties of steel plates
GB/T 6479 Seamless steel pipe for high-pressure fertilizer equipment
GB/T 7659 Steel castings for welded structures
GB/T 8110 Solid welding wire for non-alloy steel and fine grain steel for gas metal arc welding
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