This standard specifies the general design requirements for recirculating cooling seawater treatment, the design requirements and methods for makeup seawater treatment, recirculating cooling seawater treatment, test, monitoring and control, etc.
This standard is applicable to the treatment design for recirculating cooling seawater in new, expanded and re-built projects with seawater as makeup water.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB 17378.4 The specification for marine monitoring - Part 4: Seawater analysis
GB 50050-2007 Code for design of industrial recirculating cooling water treatment
GB/T 50102-2003 Code for design of cooling for industrial recirculating water
JTJ 275 Corrosion prevention technical specifications for concrete structures of marine harbour engineering
3 Terms and definitions
For the purpose of this standard, the following terms and definitions apply.
3.1
recirculating cooling seawater system
a water supply system recirculating with seawater as a cooling medium, consisting of heat exchange equipment, seawater cooling tower, water pump, pipeline and other related equipment
3.2
seawater treatment chemicals
chemicals used in the treatment of recirculating cooling seawater
