\"Power Engineering Design Manual: Design of Circulating Fluidized Bed Boiler Auxiliary Systems\" is a branch of the \"Power Engineering Design Manual\" series of manuals. It is a practical tool book for the design of circulating fluidized bed boiler units. The main contents of the book include primary air system, secondary air system, high-pressure fluidized air system, flue gas system, coal-fired screening and crushing system, boiler coal feeding system, slime conveying system, limestone powder preparation system, limestone powder conveying system , bed material system, bottom slag system, ignition fuel oil system, boiler emergency water replenishment system design principles, design points, design calculations, system determination, control requirements, equipment selection and layout, etc. The book is written in accordance with the requirements of the new standards, fully absorbs the advanced concepts and mature technologies in the construction of new thermal power plants in the 21st century, extensively collects mature and advanced cases of circulating fluidized bed boiler system design, and comprehensively reflects the progress in circulating fluidized bed boiler systems in recent years. New technologies, new equipment, and new processes used in the construction of fluidized bed power plants. \"Power Engineering Design Manual: Design of Circulating Fluidized Bed Boiler Ancillary Systems\" is a tool book for the design, construction and operation management personnel of circulating fluidized bed boiler units. It can also be used as a tool for teachers and students of relevant majors in colleges and universities, and for the operation and management of electric power enterprises. Reference book for personnel. Preface General Preface Preface Chapter 1 Overview 1 Section 1 Principles and Characteristics of Circulating Fluidized Bed Boilers 1 1. Principles of Circulating Fluidized Bed Boilers 1 2. Characteristics of Circulating Fluidized Bed Boilers 2 Section 2 Main Structural Characteristics of Circulating Fluidized Bed Boilers 3 1. 125MW circulating fluidized bed boiler 4 2. 300MW circulating fluidized bed boiler 4 3. 600MW circulating fluidized bed boiler 6 Section 3 Main ancillary systems 6 Chapter 2 Primary air system 8 Section 1 System description 8 1. System function 8 2. Design scope 8 3. Main system equipment 8 4. Design content 8 Section 2 Design Plan 9 1. Design principles 9 2. Commonly used design plans 9 Section 3 Control Requirements 25 Section 4 Design Calculation 25 1. Calculation of primary fan parameters 25 2. Calculation of coal seeding fan parameters 28 3. Air duct design calculation 29 Section 5 Equipment Selection 29 1. Primary fan 29 2. Coal seeding booster fan 30 3. Primary fan adjustment method 31 Chapter Chapter 3 Secondary Air System 34 Section 1 System Description 34 1. System Function 34 2. Design Scope 34 3. System Main Equipment 34 4. Design Content 34 Section 2 Design Plan 35 1. Design Principles 35 2. Common Design Plans 35 Section 3 Control Requirements 51 Section 4 Design Calculation 51 1. Calculation of fan parameters 51 2. Calculation of air duct specifications 54 Section 5 Equipment Selection 54 1. Fan selection 54 2. Main performance indicators of the fan 55 3. Fan adjustment Method 55 Chapter 4 High Pressure Fluidized Air System 56 Section 1 System Description 56 1. System Function 56 2. Design Scope 56 3. System Main Equipment 56 4. System Design Content 57 Section 2 Design Plan 57 1. Design Principles 57 2. Commonly used design solutions 57 Section 3 Control requirements 67 1. Normal operating conditions 67 2. Outage conditions (taking a 300MW CFB boiler unit with 5 fans and external beds as an example) 67 3. Start-up conditions 67 4 , Adjusting the damper 67 Section 4 Design calculation 67 1. Fan parameter calculation 67 2. Air duct design calculation 68 3. Calculation case 68 Section 5 Equipment selection 70 1. Fan selection 70 2. Main performance indicators of the fan 74 3. Fan adjustment method 74 Chapter 5 Flue Gas System 75 Section 1 System Description 75 1. System Function 75 2. System Scope 75 3. System Main Equipment 75 4. System Design Content 76 Section 2 Design Plan 76 1. Design Principles 76 2. Commonly used design solutions 77 3. Flue gas purification system 85 4. Flue gas waste heat utilization 88 5. Combination of common solutions 88 Section 3 control requirements 89 1. Start-up conditions 89 2. Normal operation conditions 89 3. Shutdown conditions Condition 90 Section 4 Design Calculation 90 1. Dust collector parameters 90 2. Induced draft fan parameters 90 3. Flue selection 91 4. Calculation cases 91 Section 5 Equipment selection 91 1. Air preheater selection 91 2. Induced draft fan 93 3. Dust collector 94 Chapter 6 Coal-fired screening and crushing system 96 Section 1 System Description 96 1. Design content 96 2. Coal particle size requirements 96 3. Factors affecting the design 97 Section 2 Design Plan 98 1 , Coarse screening and crushing system 98 2. Fine screening and crushing system 98 3. Layout precautions 111 Section 3 Control requirements 119 Section 4 Design calculation 119 Section 5 Equipment selection 119 1. Screening equipment 119 2. Distributor 127 3. Crushing Equipment 127 Chapter 7 Boiler Coal Feeding System 133 Section 1 System Description 133 1. System Function 133 2. Design Scope 133 3. System Main Equipment 133 4. System Design Content 134 Section 2 Design Plan 134 1. Design principles 134 2. Commonly used design solutions 135 Section 3 Control requirements 164 1. Start-up conditions 164 2. Normal operation conditions 164 3. Shut-down conditions 164 Section 4 Design calculation 164 1. Raw coal bunker 164 2. Coal feeding System output 165 Section 5 Equipment Selection 166 1. Pressure-resistant weighing belt coal feeder 166 2. Buried scraper coal feeder 166 3. Center feeder 168 Chapter 8 Slime Conveying System 170 Section 1 Coal Mud properties 170 1. Physical and chemical properties 170 2. Rheological properties 171 3. Pipeline transportation properties 171 Section 2 Design Plan 171 1. Design principles 172 2. Car factory entry plan 172 3. Belt conveyor factory entry plan 172 4 , Pipeline transportation into the factory plan 173 Section 3 Coal slime shed system 173 1. System description 173 2. Design plan 173 3. Equipment selection 178 Section 4 Coal slurry pipeline transportation system 180 1. System description 180 2. Design plan 180 3. Control requirements 187 4. Design calculation 188 5. Equipment selection 188 Section 5 Slime feeding system 197 1. System description 197 2. Design plan 197 3. Equipment selection 201 Chapter 9 Limestone powder preparation system 207 Chapter Section 1 Characteristics of limestone powder 207 1. Physical properties 207 2. Chemical characteristics 207 3. Particle size requirements 207 Section 2 Design plan 209 1. Design principles 209 2. Commonly used design plans 209 Section 3 Limestone handling, storage and transportation system 210 1. Unloading and storage system 210 2. Conveying system 215 Section 4 Coarse crushing system 222 1. System description 222 2. Design principles 222 3. Equipment selection 222 Section 5 Fine crushing system 224 1. Crusher + mechanical screen Sub-system 224 2. Column mill + pneumatic separation system 228 3. Integrated system inside and outside the furnace 238 4. Limestone silo and limestone powder silo 242 Chapter 10 Limestone powder conveying system 246 Section 1 System Description 246 Section 2 Design Plan 246 1. Design principles 246 2. Commonly used design plans 246 Section 3 Low-pressure pneumatic conveying system 247 1. System description 247 2. Design plan 247 3. Control requirements 248 4. Design calculation 249 5. Equipment selection 249 Section 4 One-level positive pressure pneumatic conveying system 249 1. System description 249 2. Design plan 250 3. Control requirements 250 4. Design calculation 254 5. Equipment selection 254 Section 5 Two-level positive pressure pneumatic conveying system 256 1. System description 256 2. Design Plan 256 3. Control Requirements 256 4. Equipment Selection 259 Chapter 11 Bed Material System 260 Section 1 Bed Material Characteristics 260 Section 2 Design Plan 260 1. Mechanical Bed Material Adding System 260 2. Pneumatic Adding Bed Material system 260 3. Manual bed material addition system 261 4. Others 261 Section 3 Mechanical adding system 261 1. Mechanical conveying scheme of coal feeder 261 2. Gravity gravity mechanical conveying scheme 264 Section 4 Pneumatic adding system 265 1. System description 265 2. Design plan 265 3. Design calculation 270 4. Control requirements270 5. Equipment selection 270 Chapter 12 Bottom slag system 271 Section 1 Bottom slag cooling system 271 1. System description 271 2. Design plan 272 3. Control requirements 287 4. Design calculation 291 5. Equipment selection 291 Chapter Section 2 Bottom slag conveying and storage system 296 1. System description 296 2. Design plan 296 3. Control requirements 301 4. Design calculation 302 5. Equipment selection 302 Chapter 13 Ignition fuel system 305 Section 1 System description 305 1 , System function 305 2. Design scope 305 3. Main equipment of the system 305 4. Design content 305 Section 2 Boiler oil burner 305 1. Form 305 2. Characteristics 309 3. Layout 310 4. Atomization method 314 5. Cleaning Method 314 Section 3 Design Plan 314 1. Design Principles 314 2. Common Design Plans 316 Section 4 Design Calculation 325 1. Oil Tank Design Calculation 325 2. Heavy Oil System Low Pressure Recirculation Design Calculation 326 Chapter 14 Boiler Emergency Water Replenishment System 328 Section 1 System Description 328 1. System Function 328 2. Design Scope 328 3. Main System Equipment 328 4. Design Content 328 Section 2 Design Plan 329 1. Design Principles 329 2. Common Design Plans 330 Section 3 Control Requirements 334 Section 4 Design Calculation 334 1. System Capacity 334 2. Emergency Water Replenishment Pump Selection Parameters 334 3. Case Calculation 335 Section 5 Equipment Selection 336 1. Emergency Water Replenishment Tank 336 2. Emergency Water Replenishment Pump Group 336 3. Emergency Water Replenishment System parameters reference table 337 Symbols of main quantities and their units of measurement 338 References 339
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