1 General Provisions
1.0.1 This code is formulated with view to make the design of recirculating cooling water system in chemical plant complying with national guideline, policy, laws and regulations and unify the technical requirements of system design so as to achieve safety and reliability, advanced technology, economy and rationality, convenient management and maintenance and to meet the requirements of water conservation, energy conservation, environmental protection, labor safety and health protection.
1.0.2 This code is applicable to design the recirculating cooling water system engineering of constructed, extended and renovated chemical engineering project.
1.0.3 Based on the domestic and international advanced technology, production practice experience and scientific experiments, the effective new process, new technology, new equipment and new material shall be adopted actively and reliably for the design of recirculating cooling water system in chemical plant.
1.0.4 In addition to the requirements specified in this code, the design of recirculating cooling water system engineering in chemical plant shall also comply with those specified in relevant current national standards.
2 Terms
2.0.1 Recirculating cooling water system
The recirculating water supply system (with water as cooling medium) which is composed by heat-exchange equipment, cooling facilities (equipment), treatment facilities, water pump, piping and other relevant facilities.
2.0.2 Indirect open recirculating cooling water system
Foreword I
1 General Provisions
2 Terms
3 Recirculating Cooling Water System
3.1 General Requirement
3.2 Basic Data
3.3 System Classification
3.4 Location Selection
3.5 Device Arrangement
4 System Water Balance
4.1 General Requirement
4.2 Calculation of Water Quantity Balance
4.3 Water Quality Balance
4.4 System Volume
5 Cooling Facility
5.1 General Requirement
5.2 Cooling Facilities Selection
5.3 Cooling Facilities Layout
6 Recirculating Cooling Water Treatment
6.1 General Requirement
6.2 Scale and Corrosion Inhibition
6.3 Microorganism Control
6.4 Cleaning and Prefilming
6.5 Side Stream Treatment
6.6 Makeup Water
6.7 Blowdown Treatment
6.8 Chemicals Storage and Dosing
7 Pumping Station and Auxiliary Building (Structure)
7.1 General Requirement
7.2 Pumping Station
7.3 Suction Pit and Water Channel
7.4 Auxiliary Building (Structure)
8 Piping Layout
8.1 General Requirement
8.2 Piping Layout
9 Monitoring and Control
9.1 General Requirement
9.2 Monitoring and Control
9.3 Laboratory Analysis
10 Water Conservation, Energy Conservation and Environmental Protection
10.1 General Requirement
10.2 Water Conservation
10.3 Energy Conservation
10.4 Environmental Protection
11 Safety and Health
11.1 General Requirement
11.2 Safety and Health Facilities
Explanation of Wording in This Code
List of Quoted Standards
