1 范围 建筑翻译
本标准规定了火力发电厂锅炉烟风煤粉管道(包括零部件)的布置、规格材料、加固肋、防爆措施、支吊架设计的技术要求及烟囱出口流速选择等内容。
本标准适用于容量为65～2000t/h等级的燃煤锅炉的钢结构烟风煤粉管道设计。对于非金属结构烟风道仅提出有关工艺设计的要求。
对于燃油和燃天然气锅炉的烟风道，以及容量小于65t/h和大于2000t/h等级的燃煤锅炉的烟风煤粉管道设计，可参照本标准执行。
涉外工程要考虑供货方或订货方所在国的情况及使用标准，可参考使用本标准。
2 引用标准
下列标准所包含的条文，通过在本标准中引用而构成为本标准的条文。本标准出版时，所示版本均为有效。所有标准都会被修订，使用本标准的各方应探讨使用下列标准最新版本的可能性。
GE/T 388()1997铝及铝合金轧制板材
GB 50229—1996火力发电厂与变电所设计防火规范
GBJ l9—1987采暖通风和空气调节设计规范
DL435 1991火电厂煤粉锅炉燃烧室防爆规程
DLA 468—1 992电站锅炉风机选型和使用导则
DL5000—2000火力发电厂设计技术规程
DL5022—1993火力发电厂土建结构设计技术规定
DL5027—1993电力设备典型消防规程
DL5053—1996火力发电厂劳动安全和工业卫生设计规程
DL/T5054—1996火力发电厂汽水管道设计技术规定
DL/T 5072—1997火力发电厂保温油漆设计规程
NFPA 8502—1995多燃烧器锅炉炉膛防外爆/内爆标准(美国)
NFPA 8503—1992煤粉系统标准(美国)
1990年版(第六版) 燃料输送、粉状燃料制备和燃烧设备的防爆规程(前苏联)(简称《防爆规程》)
1 Scope
This standard specifies technical requirements for arrangement, specification and material, supporting rib, explosion precautions, design of supporter and hanger for air & flue gas ducts/raw coal & pulverized coal piping of fossil fuel power plant boilers, as well as selection for chimney exit velocity, etc.
This standard is applicable to air & flue gas ducts/raw coal & pulverized coal piping design for steel structure of coal burning boiler with capacity is 65-2000t/h grade. It only proposes relevant technological design requirements for air flue gas ducts of nonmetallic structure.
Design for air flue gas ducts of fuel oil and natural gas burning boilers, and air & flue gas ducts/raw coal & pulverized coal piping of coal burning boiler with capacity is less than 65t/h and is larger than 2000t/h grade may comply with this standard.
Engineering concerning foreign affairs must consider condition and using standard of supplier and purchaser's country, it may use this standard by reference.
2 Normative references
The following normative documents contain provision which, through reference in this text, constitute provisions of this national standard. At time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.
GB/T 3880-1997 Aluminium and Aluminium Alloy Rolled Sheet
GB 50229-1996 Code for Fire-protection Design Power Plant and Substation
GBJ19-1987 Specifications for the Design of Heating Ventilating and Air-conditioning
DL435-1991 Code for the Prevention of Pulverized Coal Firing Furnace Explosions/Implosions in Power Plant Boilers
DL468-1992 Guide on Type Selection and Application for Power Boiler Fans
DL5000-2000 Technical Code for Designing Fossil Fuel Power Plants
DL5022-1993 Technical Stipulation for the Design of Civil Structure of Thermal Power Plant
DL5027-1993 Specification for Fire Protection of Electric Power Installation
DL5053-1996 Design Code of Labor Safety and Industrial Hygiene for Fossil Fuel Power Plants
DL/T 5054-1996 Code for Design of Thermal Power Plant Steam/Water Piping
DL/T 5072-1997 Code for Designing Insulation and Painting of Fossil Fuel Power Plant
NFPA 8502-1995 Standard for the Prevention of Furnace Explosions/Implosions in Multiple Burner Boilers
NFPA 8503-1992 Pulverized Fuel Systems (USA)
Regulations for Fuel Hauling, Pulverized Fuel Preparation and Combustion Equipment Explosionproof (1990 sixth edition) (USSR)