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GB/T 18916.39-2019 PDF in English


GB/T 18916.39-2019 (GB/T18916.39-2019, GBT 18916.39-2019, GBT18916.39-2019)
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GB/T 18916.39-2019: PDF in English (GBT 18916.39-2019)

GB/T 18916.39-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 13.060.25
P 41
Norm of Water Intake -
Part 39: Coal to Synthetic Natural Gas
煤制合成天然气
ISSUED ON: JUNE 4, 2019
IMPLEMENTED ON: OCTOBER 1, 2019
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 6 
2 Normative References ... 6 
3 Terms and Definitions ... 6 
4 Calculation Method ... 7 
5 Norm of Water Intake ... 8 
6 Instructions on the Norm ... 8 
Appendix A (Informative) Calculation of Externally Purchased Water and
Externally Supplied Water ... 10 
Appendix B (Informative) Calculation of Softened Water, Demineralized Water
and Steam Production (conversion) Coefficient ... 12 
Foreword
At present, GB/T 18916 Norm of Water Intake has issued, or, plans to issue the
following parts:
---Part 1: Fossil Fired Power Production;
---Part 2: Iron and Steel Complex;
---Part 3: Petroleum Refining;
---Part 4: Dyeing and Finishing of Textile Industrial Product;
---Part 5: Pulp, Paper and Paper Board Production;
---Part 6: Beer Brewing Industry;
---Part 7: Alcohol Production;
---Part 8: Synthetic Ammonia;
---Part 9: Monosodium L-glutamate Production;
---Part 10: Pharmaceutical Products;
---Part 11: Coal Cleaning;
---Part 12: Alumina Production;
---Part 13: Ethylene Production;
---Part 14: Wool Textile Product;
---Part 15: Chinese Spirits Production;
---Part 16: Electrolytic Aluminum Production;
---Part 17: Manufacture of Accumulating Type of Bauxite;
---Part 18: Copper Smelting Production;
---Part 19: Lead Smelting Production;
---Part 20: Chemical Filament Yarns Weaving Products;
---Part 21: Silk Production;
---Part 22: Starch Sugar Production;
Norm of Water Intake -
Part 39: Coal to Synthetic Natural Gas
1 Scope
This Part of GB/T 18916 stipulates the terms, definitions and calculation method of
norm of water intake of coal to synthetic natural gas.
This Part is applicable to the management of water intake of current, newly constructed,
reconstructed and expanded coal to synthetic natural gas enterprises, which take coal
as the raw material to make synthetic natural gas.
2 Normative References
The following documents are indispensable to the application of this document. In
terms of references with a specified date, only versions with a specified date are
applicable to this document. In terms of references without a specified date, the latest
version (including all the modifications) is applicable to this document.
GB/T 12452 The General Principles of Water Balance Test in Enterprises;
GB/T 18820 General Principles of Stipulation of Water Intake Norm for Industrial
Product;
GB/T 21534 Industrial Water Usage and Conservation - Terminology;
GB 24789 General Provisions on Equipping and Managing of the Measuring
Instrument of Water in Organization of Water Using;
GB/T 31428 Terms Relating to Coal Chemical Technology.
3 Terms and Definitions
What is defined in GB/T 18820, GB/T 21534 and GB/T 31428, and the following terms
and definitions are applicable to this document.
3.1 Coal to Synthetic Natural Gas
Coal to synthetic natural gas refers to natural gas, which is prepared through
gasification and methanation process after the treatment of gasification, conversion,
purification and methanation process by taking coal as the raw material.
Appendix A
(Informative)
Calculation of Externally Purchased Water and Externally Supplied
Water
A.1 Calculation of Externally Purchased Water
Externally purchased water shall be calculated in accordance with Formula (A.1):
Where:
Vinb---externally purchased water intake, expressed in (m3);
k1---softened water, demineralized water production (conversion) coefficient (please
refer to Appendix B for the calculation);
Vchb---externally purchased chemical water, expressed in (m3);
k2---steam production (conversion) coefficient (please refer to Appendix B for the
calculation);
Dstb---externally purchased steam, expressed in (t);
ρ---water density, expressed in (t/m3) (water density shall take 1 t/m3).
A.2 Calculation of Externally Supplied Water
Externally supplied water shall be calculated in accordance with Formula (A.2):
Where:
Vins---externally supplied water intake, expressed in (m3);
k1---softened water, demineralized water production (conversion) coefficient (please
refer to Appendix B for the calculation);
Vchs---externally supplied chemical water, expressed in (m3);
Appendix B
(Informative)
Calculation of Softened Water, Demineralized Water and Steam
Production (conversion) Coefficient
B.1 Softened Water, Demineralized Water Production (conversion) Coefficient
The coefficient of converting the amount of softened water and demineralized water
into water intake shall be calculated in accordance with Formula (B.1):
Where:
k1---softened water and demineralized water conversion coefficient;
Vcin---water intake for the production of softened water and demineralized water (water
intake converted from the amount of softened water and demineralized water),
expressed in (m3);
Vcn---the amount of softened water and demineralized water, expressed in (m3).
B.2 Steam Production (conversion) Coefficient
The coefficient of converting the amount of steam into water intake shall be calculated
in accordance with Formula (B.2):
Where:
k1---softened water and demineralized water conversion coefficient;
k2---steam conversion coefficient;
Vsin---water intake for the production of steam (water intake converted from the amount
of steam), expressed in (m3);
Dst---steam output, expressed in (t);
ρ---water density, expressed in (t/m3) (water density shall take 1 t/m3).
......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.