Detail of SH 3015-2003

Introduction of SH 3015-2003

1 Scope This code specifies the requirements for the design for water & wastewater in petrochemical engineering; This code defines the terms for the design for water & wastewater in petrochemical engineering; This code is applicable to the design for water & wastewater of new project and the design for extended and renovated project may refer to this code. 2 Terms and Definitions For the purposes of this code, the following terms and definitions apply. 2.1 Process water Water supplied by water source or water treatment plant and directly used for production process. 2.2 Reuse water Water used and recovered for reuse. 2.3 Series use The use when one system is used up, it is directly connected into the next system. 2.4 Non-polluted wastewater Wastewater not polluted or lightly polluted and with slight water temperature rise, meeting the emission standard without treatment. 2.5 Polluted industrial wastewater Industrial wastewater polluted by production process. 2.6 Domestic sewage General term of domestic sewage and domestic wastewater. 2.7 Plant capacity Annual plant treatment or production capacity determined through material balance according to design specification. 2.8 Design water consumption of maximum daily Water consumption of maximum daily all year around. 2.9 Design water consumption of maximum hourly Water consumption of maximum hourly in maximum daily water consumption (i.e. design hourly water consumption). 2.10 High pressure firefighting steadily High pressure firefighting adopting stabilized pressure facilities to maintain high pressure firefighting water pipe network pressure at ordinary times and relying on pressure variation at fire hazard to automatically start fire pump so as to meet water consumption. 2.11 Design hourly discharge of continue sewage Water quantity discharged continuously by drainage system every hour, determined according to plant or device (unit) design capacity. 2.12 Design hourly discharge of intermittent sewage Intermittent water discharge of drainage system, determined according to plant or device (unit) design capacity, hourly water discharge of maximum group converted according to duration. 2.13 Unforeseen demand Supply (drainage) water quantity unforeseen in design but possible in physical production process. 2.14 Water consumption for each unit Water consumption of specific water equipment in device (unit). 2.15 Hazardous substances Substances influencing biochemical sewage treatment, such as oil, sulfur, cyanogen, ammonia and heavy metal. 3 Water Supply 3.1 General Requirements 3.1.1 Production water shall adopt more circulating cooling water and little process water, and shall adopt series use and reuse. 3.1.2 When sea water is adopted as cooling water and firefighting water, the measures for preventing sea water corrosion for equipment and pipeline, preventing aquatic life reproduction in equipment and pipeline, and preventing marine pollution, etc. shall be taken. 3.1.3 The classification of plant water supply system shall be comprehensively determined in accordance with the requirements of the user for water quality, water pressure and water temperature and in combination with water source characteristics.

Contents of SH 3015-2003

Foreword I 1 Scope 2 Terms and Definitions 3 Water Supply 3.1 General Requirements 3.2 System Classification 3.3 Design Requirements 4 Water Drainage 4.1 General Requirements 4.2 System Classification 4.3 Design Requirements 5 Water Quantity Calculation 5.1 General Requirements 5.2 Design Water Supply Quantity 5.3 Design Water Discharge 6 Water Supply and Discharge Unit 6.1 General Requirements 6.2 Water Source and Delivery Pipeline 6.3 Water Supply and Discharge Pipe Network in Plant