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GB 50660-2011_en 大中型火力发电厂设计规范(英文版).pdf
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
中华人民共和国国家标准
GB 50660-2011
Code for Design of Fossil Fired Power Plant
大中型火力发电厂设计规范
Issued on: February 18, 2011
Implemented on: March 1, 2012
Jointly issued by
the Ministry of Housing and Urban-Rural Development
(MHURD) and the General Administration of Quality
Supervision, Inspection and Quarantine (AQSIQ) of the
People's Republic of China
National Standard of the People's Republic of China
中华人民共和国国家标准
Code for Design of Fossil Fired Power Plant
大中型火力发电厂设计规范
GB 50660-2011
Chief Development Department:
China Electricity Council
Approval Department:
Ministry of Housing and Urban-Rural Development of the People's
Republic of China
Implementation Date:
March 1, 2012
China Planning Press
中国计划出版社
2011 Beijing
Announcement of the Ministry of Housing and Urban-Rural
Development of the People's Republic of China
No.940
Announcement on Publishing the National Standard "Code for Design of
Fossil Fired Power Plant"
"Code for Design of Fossil Fired Power Plant" has been approved as a national standard
with a serial number of GB 50660-2011 and shall be implemented from August 1, 2011.
Articles 4.3.14, 15.4.2(9), 15.6.1(4), 16.3.9(1), 16.3.17, 16.4.1, 17.4.5, 19.1.3 and 21.4.2 are
compulsory provisions and must be enforced strictly.
Authorized by the Standard Rating Research Institute of the Ministry of Housing and
Urban-Rural Development of the People's Republic of China, this code is published by China
Planning Press.
Ministry of Housing and Urban-Rural Development of the People's Republic of China
February 18, 2011
Foreword
This code was formulated by China Power Engineering Consulting Group jointly with
organizations concerned according to requirements of Document Jian Biao [2006] No.136
issued by former Ministry of Construction - "Notice on Printing and Publishing the
Development and Revision Plan (2nd Batch) of Engineering Construction Standards in 2006".
During the process of formulating this code, the code drafting group has normalized outline
preparation & review and preparation of investigation report and draft for comments, solicited
for opinions to the society and finalized this code through review.
This code comprises 22 chapters and an appendix. Main technical contents cover:
general provisions, term, requirements of power system on the fossil fired power plant,
overall planning, unit selection, arrangement of main power area, coal handling system, boiler
equipment and system, de-dusting and de-slagging systems, flue gas desulfurization system,
flue gas denitration system, steam turbine equipment and system, water treatment system,
information system, instrument and control, electrical equipment and system, hydraulic
facilities and systems, auxiliary and ancillary facilities, buildings and structures, heating,
ventilation and air conditioning, environmental protection, water and soil conservation, and
firefighting, labor safety and occupational health.
Provisions printed in bold type in this code are compulsory and must be enforced strictly.
Ministry of Housing and Urban-Rural Development is in charge of the administration of
this standard and the explanation of the compulsory provisions; China Electricity Council is
responsible for its routine management and China Power Engineering Consulting Group is
responsible for the explanation of specific technical contents. During the process of
implementing this standard, you are kindly requested to send your opinion and advice to
China Power Engineering Consulting Group (Address: No.65, Ande Road, Xicheng District,
Beijing, 100120, China) for reference during future revision.
staffs and main examiners of this code are as follows:
Chief development organizations, participating development organizations, chief drafting
Chief development organization:
China Power Engineering Consulting Group
Participating development organizations:
Northeast Electric Power Design Institute
East China Electric Power Design Institute
Central Southern China Electric Power Design Institute
Northwest Electric Power Design Institute
Southwest Electric Power Design Institute
Aircraft Maintenance and Engineering Corporation (AMECO Beijing)
China Power Construction Engineering Consulting Corporation
State Grid Corporation of China
China Southern Power Grid
China Huaneng Group
China Datang Corporation
China Huadian Corporation
China Guodian Corporation
China Power Investment Corporation
China Shenhua Guohua Power Branch
Chief drafting staffs:Sun Rui, Lu Guodong, Xu Jigang, Ma An, An Yongyao, Yang
Zuhua, Wang Yuying,Cao Liping, Chai Jingyu, Wu Yiqi, Wang Hongbin, Long Hui,
Zheng Huili, Song Xuankun, Cao Songtao, Zhou Jun, Zheng Huimin, Ge Simin, Ma
Xinxin, Zhao Min, Gu Yueling, Zhou Mingqing, Xue Li, Xu Biao, Chen Yuhong,
Wang Dun, Huang Shengrui, Wen Huan, Zhang Jianzhong, Xie Yanbo, Shi Cheng,
Yang Jianxiang, Dai Youxin, Deng Nanwen, Chen Dezhi, Kang Hui, Huang Jianjun,
Chao Hui, Ming Shuli, Meng Xiangguo, Zeng Guangyi, Cui Zhiqiang, Chen
Yanbiao and Zhong Xuyao.
Chief examiners:Tang Yunlin, Chen Zumao, Long Jian, Guo Yali, Xu Haiyun, Yan
Xinjun, Yu Xi, Yuan Pinfan, Hu Jun, Xie Wangdu, Zhou Xianlin, Song Hongjun,
Liang Zhihong, Tian Xiaoqing, Wang Dongsheng, Wang Zhonghui, Huang Baode,
Dou Xingyou, Qi Enlan, Wang Congsheng, Zhang Zhengzhi, Li Shuchen, Yang
Xuzhong, Zhou Hongguang, Xiao Yong, Ning Zhe, Yang Baogang, Kuo Xiaoke,
Zhou Ziben, Wei Xinguang, Wei Xian’an, Sun Xianchen, Ye Yongjian, Shen Bing,
Bao Yiming, Xu Jianhao, Niu Bing, Chen Yinzhou, Zhong Xiaochun, Yao Youcheng,
Huang Congxin, Wang Guoyi, Gao Yuan, Bai Rong, Peng Xiangdong, Huang
An’ping, Ceng Xiaochao, Zhao Liqiong, Yang Dong, Li Yufeng, Ge Zengmao,
Wang Riyun, Fan Yongchun, Shen Yun, Hu Huaqiang, Wang Zhibin, Zhang Nong,
Tong Jianguo, Zhang Junmin, Tao Fenghun, Li Runsen, Qiao Zhikun, Wang Wenjie,
Qi Jianguo and Zhong Weidong.
Contents
1 General Provisions ......................................................................................................................1
2 Terms...........................................................................................................................................1
3 Requirements of Power System on the Fossil Fired Power Plant ...............................................3
3.1 Basic Requirements..........................................................................................................3
3.2 Technical Requirements on the Connection of Power Plant to the Power System ..........4
3.3 Requirement on the Regulating Performance of the Generating Unit .............................5
3.4 Requirements on the Operating Capacity of the Generating Unit under Abnormal
Conditions.................................................................................................................................6
4 Overall Planning .........................................................................................................................7
4.1 Basic Requirements..........................................................................................................7
4.2 Off-site Planning ..............................................................................................................8
4.3 Plant Area Planning and General Arrangement..............................................................12
5 Unit Selection............................................................................................................................19
5.1 Unit Parameters..............................................................................................................19
5.2 Main Machine Selection ................................................................................................19
5.3 Capability Matching of Main Machine ..........................................................................20
5.4 Indices Calculation of Unit Design Performance...........................................................20
6 Arrangement of Main Power Area ............................................................................................21
6.1 Basic Requirements........................................................................................................21
6.2 Arrangement of Steam turbine House and Deaerator Bay .............................................21
6.3 Arrangement of Coal Bunker Bay..................................................................................22
6.4 Boiler Arrangement........................................................................................................24
6.5 Central control room and Electrical Facilities Room.....................................................25
6.6 Arrangement of Flue Gas Desulfurization Facilities......................................................25
6.7 Arrangement of Flue Gas Denitration Facilities ............................................................26
6.8 Maintenance and Repair.................................................................................................26
6.9 Requirements on Comprehensive Facilities...................................................................28
7 Coal Handling System ..............................................................................................................29
7.1 Basic Requirements........................................................................................................29
7.2 Coal Unloading Facilities...............................................................................................29
7.3 Coal Storage Facilities ...................................................................................................30
7.4 Belt Conveyor ................................................................................................................32
7.5 Screening and Crushing Equipment...............................................................................33
7.6 Coal Blending Facilities.................................................................................................33
7.7 Coal Handling System of CFB Boiler............................................................................33
7.8 Limestone Handling and Pulverizing System of CFB Boiler ........................................34
7.9 Auxiliary Coal Handling Facilities ................................................................................34
8 Boiler Equipment and System...................................................................................................35
8.1 Boiler Equipment ...........................................................................................................35
8.2 Coal Pulverizing System................................................................................................36
8.3 Air and Gas System........................................................................................................40
8.4 Flue Gas De-dusting and Discharge System ..................................................................42
8.5 Start-up System of Once-through Boiler........................................................................43
8.6 Ignition and Combustion Fuel System...........................................................................44
8.7 Auxiliary Boiler System.................................................................................................47
8.8 Start-up Boiler................................................................................................................47
8.9 CFB Boiler System ........................................................................................................48
9 Ash and Slag Handing Systems ................................................................................................50
9.1 Basic Requirements........................................................................................................51
9.2 De-slagging System .......................................................................................................51
9.3 De-dusting System .........................................................................................................52
9.4 Off-site Transportation System ......................................................................................53
9.5 Auxiliary Facilities.........................................................................................................54
9.6 Air Storage Yard.............................................................................................................54
10 Flue Gas Desulfurization System............................................................................................58
10.1 Basic Requirements......................................................................................................58
10.2 Absorbent Processing System......................................................................................59
10.3 Sulfur Dioxide Absorbing System................................................................................60
10.4 Flue Gas System...........................................................................................................61
10.5 Desulfurization Byproduct Treatment System .............................................................62
11 Flue Gas Denitration System...................................................................................................63
11.1 Basic Requirements......................................................................................................63
11.2 Reductant Storage and Supply System.........................................................................63
11.3 Flue Gas Denitration Reaction System ........................................................................64
11.4 Ammonia/Air Mixing and Spraying System................................................................64
12 Steam Turbine Equipment and System ...................................................................................64
12.1 Steam Turbine Equipment............................................................................................65
12.2 Main Steam, Reheat Steam and Bypass System ..........................................................66
12.3 Feedwater System ........................................................................................................66
12.4 Deaerator and Feedwater Tank.....................................................................................68
12.5 Condensate System ......................................................................................................69
12.6 Draining and Discharge System...................................................................................71
12.7 Cooling Water System of Auxiliary Machine ..............................................................71
12.8 Auxiliary System and Equipment of Heat-supply Unit................................................72
12.9 Condenser and the Auxiliary Facilities ........................................................................74
13 Water Treatment System .........................................................................................................74
13.1 Water Quality and Water Pretreatment.........................................................................75
13.2 Water Pre-desalination .................................................................................................76
13.3 Boiler Make-up Water Treatment.................................................................................76
13.4 Condensate Polishing of Steam Turbine Unit ..............................................................78
13.5 Cooling Water Treatment .............................................................................................79
13.6 Chemical and Water-steam Sampling for Thermal System..........................................80
13.7 Treatment for Make-up Water and Industrial Backwater of Heat Network .................80
13.8 Waste Water Treatment ................................................................................................80
13.9 Chemical Storage .........................................................................................................82
14 Information System.................................................................................................................82
14.1 Basic Requirements......................................................................................................82
14.2 Overall Planning of Plant Information System ............................................................82
14.3 Supervisory Information System for Plant Level.........................................................83
14.4 Management Information System ................................................................................84
14.5 Price Bidding System...................................................................................................84
14.6 Video Monitoring System ............................................................................................84
14.7 Video Meeting System .................................................................................................85
14.8 Access Guard Management System.............................................................................85
14.9 Training Simulator .......................................................................................................85
14.10 Cabling.......................................................................................................................86
14.11 Information Security ..................................................................................................86
15 Instrument and Control ...........................................................................................................87
15.1 Basic Requirements......................................................................................................87
15.2 Automation Level ........................................................................................................87
15.3 Control Mode and Control Room.................................................................................87
15.4 Measurement and Instrument.......................................................................................88
15.5 Alarming System..........................................................................................................90
15.6 Unit Protection System ................................................................................................90
15.7 On-off Control..............................................................................................................93
15.8 Modulating Control......................................................................................................96
15.9 Unit Control System.....................................................................................................97
15.10 Auxiliary Workshop Control System .........................................................................99
15.11 Control Power Source ..............................................................................................101
15.12 Instrument Tube, Cable and Arrangement of Local Equipment...............................101
16 Electrical Equipment and System .........................................................................................102
16.1 Generator and Main Transformer...............................................................................102
16.2 Main Electrical Connection........................................................................................104
16.3 AC Auxiliary Power System ......................................................................................106
16.4 DC System and AC Uninterruptible Power Supply ...................................................111
16.5 High Voltage Switchgear............................................................................................113
16.6 Electrical Monitoring and Control .............................................................................114
16.7 Elements Relay Protection .........................................................................................116
16.8 Lighting System .........................................................................................................117
16.9 Cable Selection and Cable Routing............................................................................118
16.10 Grounding System....................................................................................................119
16.11 Relay Protection and Automatic Safety Device of Power System ...........................120
16.12 Substation of Dispatch Automation System.............................................................121
16.13 Power system Communication.................................................................................121
16.14 In-plant Communication ..........................................................................................122
16.15 Other Electrical Facilities.........................................................................................123
17 Hydraulic Facilities and System............................................................................................123
17.1 Basic Requirements....................................................................................................123
17.2 Water Source and Water Management .......................................................................124
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