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GB/T 18749-2019: Specification for chemical-resistant ceramic tower packings
Status: Valid GB/T 18749: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 18749-2019 | English | 439 |
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Specification for chemical-resistant ceramic tower packings
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GB/T 18749-2019
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| GB/T 18749-2008 | English | 519 |
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Standard specification for chemical-resistant ceramic tower packings
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GB/T 18749-2008
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| GB/T 18749-2002 | English | 479 |
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Standard specification for chemical -- Resistant ceramic tower packings
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GB/T 18749-2002
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PDF similar to GB/T 18749-2019
Basic data | Standard ID | GB/T 18749-2019 (GB/T18749-2019) | | Description (Translated English) | Specification for chemical-resistant ceramic tower packings | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G94 | | Classification of International Standard | 71.120; 81.060 | | Word Count Estimation | 22,291 | | Date of Issue | 2019-12-10 | | Date of Implementation | 2020-07-01 | | Older Standard (superseded by this standard) | GB/T 18749-2008 | | Quoted Standard | HG/T 3210 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | | Summary | This standard specifies the shape, size and stacking number, size requirements, physical and chemical performance requirements, chemical composition, test methods and acceptance of chemical corrosion-resistant ceramic tower packing. This standard applies to ceramic products fired from natural clays and mixtures for tower packing in chemical or other related industries. | GB/T 18749-2019: Specification for chemical-resistant ceramic tower packings---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Technical conditions of chemical resistant ceramic tower packing)
ICS 71.120; 81.060
G94
National Standards of People's Republic of China
Replaces GB/T 18749-2008
Technical conditions of chemical resistant ceramic tower packing
2019-12-10 release
2020-07-01 implementation
State Administration of Market Supervision
Published by the National Standardization Management Committee
Contents
Foreword I
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Shape, size and number of stacking 1
5 Size requirements 3
6 Physical and chemical performance requirements 3
7 Chemical composition 4
8 Test method 4
9 Acceptance 5
Appendix A (normative) Shape, size and characteristic parameters of Bauer ring packing 6
Appendix B (Normative) Shape, size and characteristics of rectangular saddle packing 8
Appendix C (Normative Appendix) Shape, size and characteristics of special saddle-shaped packings10
Appendix D (Normative) Shape, size and characteristics of stepped ring packing 12
Appendix E (Normative) Shape, size and characteristics of conjugated ring packings 14
Appendix F (Normative Appendix) Shape, size and characteristics of hexagonal spacer ring packing 15
Appendix G (normative) Shape, size and characteristics of seven-hole toothed ring packing 16
Appendix H (Normative) Shape, size and characteristics of seven-hole baffle ring packing 17
Appendix I (Normative) Shape, size and characteristics of corrugated packing 18
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 18749-2008 "Technical Conditions for Chemical-Resistant Ceramic Tower Packing". Compared with GB/T 18749-2008,
In addition to editorial changes, the main technical changes are as follows.
--- Revised the requirements of wall thickness and number of packings of circular ceramic tower packing (see Table 1, Table 1 of the.2008 edition);
--- Amended the requirements for the number of saddle-shaped ceramic tower packings (see Table 2, Table 2 of the.2008 edition);
--- Amended the requirements for the number of packings of arc saddle and rectangular saddle-shaped ceramic tower packing (see Table 3, Table 3 of the.2008 edition);
--- Modified the requirements for the shape, size and characteristics of other types of fillers (see 4.2, 4.2 of the.2008 edition);
--- Increased the requirements for compressive strength of ring fillers (see 6.1.3);
--- Increased the compressive strength requirements of corrugated fillers (see 6.1.4);
--- Revised the number of samples for compressive strength (see 8.1, 8.1 of the.2008 edition);
--- Increased the requirements for the number of samples of continuous packing and corrugated packing (see 8.1);
--- Increased the number of samples required for acceptance of ring packing and corrugated packing (see 9.3);
--- Modified requirements for wall thickness deviation of DN38mm specifications for filler products such as Bauer ring, rectangular saddle, hetero saddle, stepped ring, conjugate ring
(See Appendix A to Appendix E,.2008 edition of Appendix A to Appendix E);
--- Modified wall thickness data of DN76mm specifications for filler products such as Ball rings, rectangular saddles, odd saddles and stepped rings (see Appendix A to
(Appendix D, Appendices A to D of the.2008 edition);
--- Modified the characteristic parameters of filler products such as Bauer ring, rectangular saddle shape, different saddle shape and stepped ring (see Appendix A to Appendix D,.2008
(Appendix A to Appendix D of the edition);
--- Modified the schematic diagrams of filler products such as Bauer ring, rectangular saddle, hetero saddle, step ring, conjugate ring (see Appendix A to Appendix E,
(Appendix A to Appendix E of the.2008 edition);
--- Increased the shape, size and characteristics of the hexagonal separator ring packing (see Appendix F);
--- Increased shape, size and characteristics of seven-hole toothed ring packing (see Appendix G);
--- Increased the shape, size and characteristics of the seven-hole separator ring packing (see Appendix H);
--- Increased the shape, size and characteristics of the corrugated filler (see Appendix I).
This standard was proposed by the China Petroleum and Chemical Industry Federation.
This standard is under the jurisdiction of the National Non-Metal Chemical Equipment Standardization Technical Committee (SAC/TC162).
This standard was drafted. Pingxiang Zhongtian Chemical Packing Co., Ltd., Tianhua Chemical Machinery and Automation Research and Design Institute Co., Ltd., China
Petrochemical Nanjing Engineering Co., Ltd., Pingxiang Global New Material Technology Co., Ltd., Fujian Junjie New Material Technology Co., Ltd., Jiangxi Ping
Xianglong Hair Industry Co., Ltd., Pingxiang Tiansheng Chemical Equipment Co., Ltd., National Ceramic Product Quality Supervision and Inspection Center (Jiangxi).
The main drafters of this standard. Chen Yun, Li Hongfa, Chang Haiyang, Hu Zhaoyang, Zhang Yuezhang, Luo Deping, Yang Shici, Song Min, Wu Haixiao, Hang Yuhong,
Wu Haofeng, Zou Yanli, Gao Hongyue.
The previous versions of the standards replaced by this standard are.
--- GB/T 18749-2002, GB/T 18749-2008.
Technical conditions of chemical resistant ceramic tower packing
1 Scope
This standard specifies the shape, size, and number of packing, size requirements, physical and chemical performance requirements,
Chemical composition, test methods, acceptance.
This standard applies to ceramic products fired from natural clay and mixtures and used in chemical or other related industries as tower fillers.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
HG/T 3210 Test method for properties of acid-resistant ceramic materials
3 terms and definitions
The following terms and definitions apply to this document.
3.1
Ceramic tower packing ceramictowerpacking
Ceramic products with various specific configurations, such as spherical, cylindrical rings with vertical or inclined end faces, rings with obstacles inside, and open-hole cylindrical shapes
And arc saddles. These ceramics are used in the tower to provide contacting surface area to promote liquid-to-liquid, gas-to-liquid and
Gas-to-gas energy transfer, mass transfer, or chemical reaction.
3.2
Fine porcelain filler packingpacking
Ceramic components made of refined clay and other natural mineral raw materials that are specially formulated to form billets. This ceramic product has a uniform
The crystal and vitreous structure are white or light gray in appearance and have a small water absorption.
3.3
Stonewaretowerpacking
Ceramic products made of natural clay and other mineral raw materials are specially formulated to form a billet, which has a large water absorption rate.
4 Shape, size and stacking number
4.1 The shape, size, and number of packings of circular, saddle, arc saddle, and unreinforced rectangular saddle ceramic tower fillers shall comply with Tables 1 to 3
Requirements, or determined by the supply and demand sides through consultation.
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