This part specifies the technical requirements for seawater pretreatment design of recirculating cooling seawater system.
This part is applicable to seawater pretreatment design for newly constructed, reconstructed or expanded recirculating cooling seawater systems. The seawater pretreatment design of other seawater utilization systems can reference it.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 4482 Water treatment chemicals - Ferric chloride
GB/T 12763.4 Specifications for oceanographic survey - Part 4: Survey of chemical parameters in sea water
GB/T 14591 Water treatment chemicals - Poly ferric sulfate
GB 15892 Poly aluminium chloride for treatment of drinking water
GB 17378.4 The specification for marine monitoring - Part 4: Seawater analysis
GB/T 17514 Water treatment chemicals - Anionic and non-ionic polyacrylamides
GB/T 33584.1 Seawater quality requirements and analysis methods for seawater cooling system - Part 1: Determination of calcium and magnesium
GB/T 33584.4 Seawater quality requirements and analysis methods for seawater cooling system - Part 4: Determination of sulfate
GB/T 33584.5 Seawater quality requirements and analysis methods for seawater cooling system - Part 5: Determination of dissolved solid
GB/T 33584.6 Seawater quality requirements and analysis methods for seawater cooling system - Part 6: Determination of heterotrophic bacteria
GB 50013-2006 Code for design of outdoor water supply engineering
CJ/T 83 Inclined tube for water and wastewater treatment
CJJ 40-2011 Code for design of water supply engineering using high-turbidity raw water
HY/T 187.2 Code for design of recirculating cooling seawater system - Part 2: Requirement of wastewater engineering
HY/T 191 Determination of iron for cooling seawater
HG 2227 Water treatment chemicals - aluminum sulfate
JTJ 275 Corrosion prevention technical specifications for concrete structures of marine harbour engineering
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
recirculating cooling seawater system
a water supply system that uses seawater as a cooling medium and will recirculate, and consists of heat exchange equipment, seawater cooling tower, water pump, pipeline and other related equipment
[HY/T 187.1-2015, Definition 3.1]
3.2
raw seawater
seawater collected and transported by seawater intake structure, and will be subjected to pretreatment
Note: It is revised from GB 50013-2006, Definition 2.0.37.
HY/T 240.3-2018 The following standards are cited：
