GB/T 39222-2020Design guidelines for multiple effect distillation seawater desalination system (English PDF)
多效蒸馏海水淡化系统设计指南
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 11, 2020
Implementation date
May 1, 2021
Scope
GB/T 39222-2020 is the English-translated version of 多效蒸馏海水淡化系统设计指南.
GB/T 39222-2020 is the Chinese standard "Design guidelines for multiple effect distillation seawater desalination system".
Its scope clause reads: This standard provides the terms and definitions, basic requirements, sea water intake and pretreatment, multi-effect distillation equipment Guidance on design, product water storage facilities, concentrated brine discharge, cooling sea water discharge and wastewater treatment.
This standard applies to the design of newly built or expanded multi-effect distillation seawater desalination systems. Its clauses include terms and definitions.
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Document preview — GB/T 39222-2020
National Standard of the People's Republic of China
- ICS
- 07.060
- Classification
- F 41
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 General
- 5 Seawater intake and pretreatment
- 6 Multi-effect distillation device design
- 7 Product water storage facility
- 8 Discharge of concentrated brine
- 9 Cooling sea water discharge
- 10 Wastewater treatment
- Appendix B (informative appendix) Main instrument parameters of multi-effect distillation seawater desalination system
1 Scope
This standard provides the terms and definitions, basic requirements, sea water intake and pretreatment, multi-effect distillation equipment
Guidance on design, product water storage facilities, concentrated brine discharge, cooling sea water discharge and wastewater treatment.
This standard applies to the design of newly built or expanded multi-effect distillation seawater desalination systems.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.
For undated references, the latest version (including all amendments) applies to this document.
HY/T 203.2-2016 Seawater Utilization Terminology Part 2.Seawater Desalination Technology
3 Terms and definitions
The following terms and definitions defined in HY/T 203.2-2016 apply to this document. For ease of use, the following is repeated
Some terms and definitions in HY/T 203.2-2016.
3.1 Desalination
The process of removing salt from seawater and producing fresh water.
[HY/T 203.2-2016, definition 2.6]
3.2 Distillation and desalination
When an aqueous solution containing salts is heated to boiling, the water evaporates into steam, while the salts remain in the solution, and the steam is condensed to obtain fresh water.
[HY/T 203.2-2016, definition 3.1]
3.3 Multi-effect distillation
It is composed of multiple evaporation and condensation units in series, in which steam is condensed on one side of the heat transfer tube to produce fresh water, and the heat released at the same time makes the heat transfer tube another
The seawater on one side evaporates to generate secondary steam, and enters the next unit to repeat the above-mentioned evaporation and condensation process of seawater.
3.4 Multi-effect distillation seawater desalination system
The process flow of seawater desalination using multi-effect distillation.
Note. It consists of seawater intake, pretreatment, multi-effect distillation, product water storage, concentrated brine discharge, cooling seawater discharge, wastewater treatment, etc.
3.5 Raw sea water
Untreated seawater obtained from seawater sources.
3.6 Material sea water
It is used for distilling desalinated seawater in a multi-effect distillation unit.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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