4.4 Erection of Boiler Proper
4.4.1 Boiler foundation lineation.
1 Scope：boiler foundation lineation.
2 Quality criterias and inspection methods are shown in Table 4.4.1.
Table 4.4.1 Boiler foundation lineation
4.4.2 Erection of steel structure column soleplate（pad iron）.
1 Scope：erection of boiler steel structure column base plate（pad iron）.
2 Quality criterias and inspection methods are shown in Table 4.4.2.
Table 4.4.2 Erection of steel structure column base plate（pad iron）
Table 4.4.2（Continued）
4.4.3 Assembly of steel structure.
1 Scope：assembly of steel structure columns/girders assembly components.When the boiler steel structure erection acceptance scope division was modified this time，the subentry project of“steel structure assembly”has been still retained.The selection and application shall be carried out according to specific situations if the professional acceptance division schedule is prepared on site.
2 Quality criterias and inspection methods are shown in Table 4.4.3.
Table 4.4.3 Assembly of steel structure
Table 4.4.3（Continued）
Note：L—Column length.
4.4.4 Erection of boiler steel structure assembly components and columns.
1 Scope：erection of boiler steel structure assembly components and columns.
2 Quality criterias and inspection methods are shown in Table 4.4.4.
Table 4.4.4 Erection of boiler steel structure assembly components and columns
4.4.5 Erection of cross beam.
1 Scope：erection of single cross beams between boiler steel structure columns.
2 Quality criterias and inspection methods are shown in Table 4.4.5.
Table 4.4.5 Erection of cross beam
4.4.6 Erection of roof steel plate girder.
1 Scope：erection of boiler roof steel structure and roof single cross beams，as well as steel plate girder.
2 Quality criterias and inspection methods are shown in Table 4.4.6.
Table 4.4.6 Erection of roof steel plate girder
Table 4.4.6（Continued）
4.4.7 Column base secondary grouting.
1 Scope：boiler steel structure column base secondary grouting.
2 Quality criterias and inspection methods are shown in Table 4.4.7.
Table 4.4.7 Column base secondary grouting
4.4.8 Boiler steel structure high strength bolt Re-inspection and witness sampling record.
1 Scope：re-inspection and sampling of boiler steel structure high strength bolts.
2 The re-inspection and sampling record shall meet the requirements of Table 4.4.8.
Table 4.4.8 Boiler steel structure high strength bolt Re-inspection and witness sampling record
4.4.9 Boiler steel structure high strength bolt tightening record.
1 Scope：boiler steel structure high strength bolt tightening.
2 The tightening record shall meet the requirements of Table 4.4.9.
Table 4.4.9 Boiler steel structure high strength bolt tightening record
4.4.10 Boiler steel structure high strength bolt tightening re-inspection record.
1 Scope：re-inspection of boiler steel structure high strength bolt tightening.
2 The tightening re-inspection record shall meet the requirements of Table 4.4.10.
Table 4.4.10 Boiler steel structure high strength bolt tightening re-inspection record
4.4.11 Boiler steel structure steel plate girder Inspection record.
1 Scope：inspection before boiler steel structure steel plate girder being lifted.
2 The steel plate girder inspection record shall meet the requirements of Table 4.4.11.
Table 4.4.11 Boiler steel structure steel plate girder lnspection record
4.4.12 Certification of boiler steel structure column base secondary grouting.
1 Scope：certification of boiler steel structure column base secondary grouting.
2 The certification of the column base secondary grouting shall meet the requirements of Table 4.4.12.
Table 4.4.12 Certification of boiler steel structure column base secondary grouting
4.4.13 Inspection of platform and ladder equipment.
1 Scope：inspection of platforms and ladders of power plant boiler，electrostatic precipitators and auxiliary equipment steel structure.
2 Quality criterias and inspection methods are shown in Table 4.4.13.
Table 4.4.13 Inspection of platform and ladder equipment
Note：L—the platform length.
4.4.14 Assembly of platform and ladder.
1 Scope：construction quality acceptance of platforms and ladders of power plant boiler，electrostatic precipitators and auxiliary equipment steel structure.
2 Quality criterias and inspection methods are shown in Table 4.4.14.
Table 4.4.14 Assembly of platform and ladder
4.4.15 Inspection of tube header equipment of tubular and box type air heater.
1 Scope：inspection of tube heater equipment of Tubular and box type air heaters.
2 Quality criterias and inspection methods are shown in Table 4.4.15.
Table 4.4.15 Inspection of tube header equipment of tubular and box type air heater
4.4.16 Assembly of tubular and box type air heater equipment.
1 Scope：assembly of tubular air heater equipment.
2 Quality criterias and inspection methods are shown in Table 4.4.16.
Table 4.4.16 Assembly of tubular and box type air heater equipment
4.4.17 Inspection of tubular and box type air heater supporting steel structure.
1 Scope：inspection of Tubular and box type air heater supporting steel structure.
2 Quality criterias and inspection methods are shown in Table 4.4.17.
Table 4.4.17 Inspection of tubular and box type air heater supporting steel structure
4.4.18 Erection of tubular and box type air heater.
1 Scope：erection of tubular and box type air heater.
2 Quality criterias and inspection methods are shown in Table 4.4.18.
Table 4.4.18 Erection of tubular and box type air heater
4.4.19 Inspection of turning chamber（connecting pipe）and expansion joint of tubular and box type aair heater.
1 Scope：inspection of turning chamber（connecting pipe）and expansion joint of tubular and box type air heater.
2 Quality criterias and inspection methods are shown in Table 4.4.19.
Table 4.4.19 Inspection of turning chamber（connecting pipe）and expansion joint of tubular and box type air heater
4.4.20 Erection of turning chamber（connecting pipe）and expansion joint of tubular and box type air heater.
1 Scope：erection of turning chamber（connecting pipe）and expansion joint of tubular and box type air heater.
2 Quality criterias and inspection methods are shown in Table 4.4.20.
Table 4.4.20 Erection of turning chamber（connecting pipe）and expansion joint of tubular and box type air heater
4.4.21 Rotary air heater foundation lineation.
1 Scope：inspection and lineation of rotary air heater foundations and supporting steel structures.
2 Quality criterias and inspection methods are shown in Table 4.4.21.
Table 4.4.21 Rotary air heater foundation lineation
4.4.22 Erection of rotary air heater pad lron.
1 Scope：erection of rotary air heater support pad irons and expansion supports.
2 Quality criterias and inspection methods are shown in Table 4.4.22.
Table 4.4.22 Erection of rotary air heater pad lron
4.4.23 Erection of rotary air heater bearing.
1 Scope：erection of rotary air heater support bearings and guide bearings.
2 Quality criterias and inspection methods are shown in Table 4.4.23.
Table 4.4.23 Erection of rotary air heater bearing
4.4.24 Erection of rotating-ducts air heater stator.
1 Scope：erection of rotating-ducts air heater stator.
2 Quality criterias and inspection methods are shown in Table 4.4.24.
Table 4.4.24 Erection of rotating-ducts air heater stator
Table 4.4.24（Continued）
4.4.25 Erection of rotating-ducts rotary air heater body.
1 Scope：erection of rotating-ducts rotary air heater body（including rotating ducts，surrounding straps，seals）.
2 Quality criterias and inspection methods are shown in Table 4.4.25.
Table 4.4.25 Erection of rotating-ducts rotary air heater body
4.4.26 Erection of air heater driving devices.
1 Scope：erection of rotary air heater driving devices（including reducer，motor and coupling alignment）.
2 Quality criterias and inspection methods are shown in Table 4.4.26.
Table 4.4.26 Erection of air heater driving devices
4.4.27 Erection of air heater pipes and soot blower.
1 Scope：erection of rotary air heater pipes and soot blower（including flushing，fire control and other pipes，soot blower and accessories such as valves and doors）.
2 Quality criterias and inspection methods are shown in Table 4.4.27.
Table 4.4.27 Erection of air heater pipes and soot blower
Table 4.4.27（Continued）
4.4.28 Erection of rotating-rotor air heater Stator.
1 Scope：erection of rotating-rotor air heater stator，including steel beam，end columns or supports，shell，arc plate division chambers，support.
2 Quality criterias and inspection methods are shown in Table 4.4.28.
Table 4.4.28 Erection of rotating-rotor air heater stator
Table 4.4.28（Continued）
4.4.29 Erection of rotating-rotor air heater rotor.
1 Scope：erection of rotating-rotor air heater rotor，including central cylinder，rotor separation chamber，heat transfer component，surrounding strap.
2 Quality criteria and inspection methods are shown in Table 4.4.29.
Table 4.4.29 Erection of rotating-rotor air heater rotor
Table 4.4.29（Continued）
4.4.30 Erection of sealing devices of rotating-rotor air heater
1 Scope：erection of sealing devices of rotating-rotor air heater，including erection and adjustment of central cylinder sealing，radial sealing，axial seal，circumference seal.
2 Quality criterias and inspection methods are shown in Table 4.4.30.
Table 4.4.30 Erection of sealing devices of rotating-rotor air heater
Table 4.4.30（Continued）
4.4.31 Erection of lubrication devices of rotating-rotor air heater
1 Scope：erection of lubrication devices of rotating-rotor air heater，including oil station，pipes.
2 Quality criterias and inspection methods are shown in Table 4.4.31.
Table 4.4.31 Erection of lubrication devices of rotating-rotor air heater
4.4.32 Subsection trial operation of oil system of rotary air heater.
1 Scope：subsection trial operation of oil system of rotary air heater，including oil station，oil system circulation.
2 Quality criterias and inspection methods are shown in Table 4.4.32.
Table 4.4.32 Subsection trial operation of oil system of rotary air heater
4.4.33 Subsection trial operation of driving devices of rotary air heater.
1 Scope：subsection trial operation of driving devices of rotary air heater，including motor and reducer.
2 Quality criterias and inspection methods are shown in Table 4.4.33.
Table 4.4.33 Subsection trial operation of driving devices of rotary air heater
4.4.34 Subsection trial operation of rotary air heater.
1 Scope：subsection trial operation of rotary air heater，including synchronous trial operation of motor，reducer，air heater body.
2 Quality criterias and inspection methods are shown in Table 4.4.34.
Table 4.4.34 Subsection trial operation of rotary air heater
4.4.35 Certification of oil leak test of tubular and box type air heater welds.
Scope：The welds in tube sheet and shell of Tubular and box type air heater shall be inspected by oil leak test 2 quality criterias and inspection methods are shown in Table 4.4.35.
Table 4.4.35 Certification of oil leak test of welds
4.4.36 Certification of pressure decay test of tubular and box type air heater.
1 Scope：tightness of tubular and box type air heater shall be inspected with a pressure decay test.
2 Quality criterias and inspection methods are shown in Table 4.4.36.
Table 4.4.36 Certification of pressure decay test of tubular and box type air heater
4.4.37 Assembly and erection of casing.
1 Scope：assembly and erection of various boiler casings.
2 Quality criterias and inspection methods are shown in Table 4.4.37.
Table 4.4.37 Assembly and erection of casing
Table 4.4.37（Continued）
4.4.38 Erection of sand seal and water seal gland devices.
1 Scope：erection of boiler proper sand seal and water seal devices.
2 Quality criterias and inspection methods are shown in Table 4.4.38.
Table 4.4.38 Erection of sand seal and water seal gland devices
Table 4.4.38（Continued）
4.4.39 Erection of furnace top seal cover and local seal elements.
1 Scope：erection of furnace top seal cover and other local seal elements.
2 Quality criterias and inspection methods are shown in Table 4.4.39.
Table 4.4.39 Erection of furnace top seal cover and local seal elements
Table 4.4.39（Continued）
4.4.40 Erection of boiler proper manholes.
1 Scope：erection of boiler proper various manholes.
2 Quality criterias and inspection methods are shown in Table 4.4.40.
Table 4.4.40 Erection of boiler proper manholes
4.4.41 Erection of bottom slag hopper.
1 Scope：erection of bottom slag hopper in boiler room.
2 Quality criterias and inspection methods are shown in Table 4.4.41.
Table 4.4.41 Erection of bottom slag hopper
Table 4.4.41（Continued）
4.4.42 Assembly and erection of ash hopper.
1 Scope：assembly and erection acceptance of ash hoppers in boiler，dust remover and other zones.
2 Quality criterias and inspection methods are shown in Table 4.4.42.
Table 4.4.42 Assembly and Erection of Ash Hopper
4.4.43 Inspection of swirl burner.
1 Scope：inspection and acceptance of boiler swirl burner.
2 Quality criterias and inspection methods are shown in Table 4.4.43.
Table 4.4.43 Inspection of swirl burner
4.4.44 Erection of swirl burner.
1 Scope：erection acceptance of boiler swirl burners，U type and W type flame impellerless burners.
2 Quality criterias and inspection methods are shown in Table 4.4.44.
Table 4.4.44 Erection of swirl burner
4.4.45 Inspection of impellerless burner.
1 Scope：inspection and acceptance of boiler 4-corner tangential combustion impellerless burner.
2 Quality criterias and inspection methods are shown in Table 4.4.45.
Table 4.4.45 Inspection of impellerless burner
4.4.46 Erection of impellerless burner.
1 Scope：inspection and acceptance of boiler 4-corner tangential combustion impellerless burner.
2 Quality criterias and inspection methods are shown in Table 4.4.46.
Table 4.4.46 Erection of impellerless Burner
Table 4.4.46（Continued）
4.4.47 Inspection of oil/gas burner.
1 Scope：inspection and acceptance of boiler oil/gas burner.
2 Quality criterias and inspection methods are shown in Table 4.4.47.
Table 4.4.47 Inspection of oil/gas burner
4.4.48 Erection of oil/gas burner.
1 Scope：erection acceptance of boiler oil/gas burner.
2 Quality criterias and inspection methods are shown in Table 4.4.48.
Table 4.4.48 Erection of oil/gas burner
4.4.49 Inspection of oil-free/tiny-oil lgnition devices before erection.
1 Scope：inspection and acceptance of oil-free/tiny-oil ignition devices before erection.
2 Quality criterias and inspection methods are shown in Table 4.4.49.
Table 4.4.49 Inspection of oil-free/tiny-oil lgnition devices before erection
4.4.50 Erection of oil-free/tiny-oil lgnition device.
1 Scope：erection of boiler oil-free/tiny-oil ignition device.
2 Quality criterias and inspection methods are shown in Table 4.4.50.
Table 4.4.50 Erection of oil-free/tiny-oil lgnition device
4.4.51 Inspection and lineation of drum（steam-water separator）.
1 Scope：inspection and lineation of drum，steam-water separator，water pocket and other equipments（such as cylinder and tube stub）.
2 Quality criterias and inspection methods are shown in Table 4.4.51.
Table 4.4.51 Inspection and lineation of drum（steam-water separator）
Table 4.4.51（Continued）
Table 4.4.51（Continued）
4.4.52 Erection of drum（steam-water separator）.
1 Scope：erection of drum，steam-water separator，water pocket and other equipment（such as cylinder and tube stub）.
2 Quality criterias and inspection methods are shown in Table 4.4.52.
Table 4.4.52 Erection of drum（steam-water separator）
Table 4.4.52（Continud）
Notes：1 As for any requirement not being met due to the equipment cause（s），please consult the manufacturer and treatment shall be carried out according to manufacturer's suggestion.
2 L—Steam-water separator height
4.4.53 Inspection of drum internals.
1 Scope：drum internals inspection.
2 Quality criterias and inspection methods are shown in Table 4.4.53.
Table 4.4.53 Inspection of drum lnternals
4.4.54 Erection of drum lnternals.
1 Scope：reassembly of disassembled drum internals.
2 Quality criterias and inspection methods are shown in Table 4.4.54.
Table 4.4.54 Erection of drum lnternals
4.4.55 Assembly of membrane walls（waterwalls and wall enclosed superheater）.
1 Scope：inspection and assembly of waterwalls（including radiation reheater），extension waterwall，enclosed wall（extended enclosed wall），middle partition wall，and pipe arrays.
2 Quality criterias and inspection methods are shown in Table 4.4.55.
Table 4.4.55 Assembly of membrane walls（waterwalls and Wwall enclosed superheater）
Table 4.4.55（Continued）
Note：a Assembled pipe ball-passing test：inspection of welding joint inner diameter shall be carried out after welding to prevent any internal blocking.
4.4.56 Erection of membrane walls（waterwalls and wall enclosed superheater）.
1 Scope：erection of waterwalls（including radiation reheater），extension waterwall，enclosed wall（extension enclosed wall），middle partition wall and knockdown parts.
2 Quality criterias and inspection methods are shown in Table 4.4.56.
Table 4.4.56 Erection of membrane walls（waterwalls and wall enclosed superheater）
Note：a ball-passing test before pipe arrays butt welding is to check whether there is any foreign thing during equipment storage and handling period and eliminate any equipment pipe explosion hidden trouble.
4.4.57 Assembly（preassembly）of spiral waterwall.
1 Scope：assembly or preassembly of spiral waterwalls.
2 Quality criterias and inspection methods are shown in Table 4.4.57.
Table 4.4.57 Assembly（preassembly）of spiral waterwall
Table 4.4.57（Continued）
Note：a Assembled pipe ball-passing test：inspection of welding jiont inner diameter shall be carried out after welding jiont assembly to prevent any internal blocking.
4.4.58 Erection（assembly）of spiral waterwall knockdown parts.
1 Scope：erection of spiral waterwall assembly or knockdown parts.
2 Quality criterias and inspection methods are shown in Table 4.4.58.
Table 4.4.58 Erection（assembly）of spiral waterwall knockdown parts
Note：a the ball-passing test before the pipe arrays butt joint welding is to check whether there is any foreign thing during the equipment storage and handling period and eliminate any equipment pipe explosion hidden trouble.
4.4.59 Erection of boiler proper pipe.
1 Scope：assembly and erection of boiler proper downcomer，evaporating tubes，steam connecting pipe，feed water connecting pipe，recirculating pipes，attemprating water pipe.
2 Quality criterias and inspection methods are shown in Table 4.4.59.
Table 4.4.59 Erection of boiler proper pipe
Note：DN—Pipe nominal diameter.
4.4.60 Assembly of vertical superheater（reheater）.
1 Scope：assembly of platen superheater，last stage superheater，last stage reheater，vertical low temperature superheater and other integral assemblies or pipe arrays.
2 Quality criterias and inspection methods are shown in Table 4.4.60.
Table 4.4.60 Assembly of vertical superheater（reheater）
Note：a Ball-passing test after pipe arrays pipe welding：inspection of welding joint inner diameter shall be carried out after welding joint assembly to prevent any internal blocking.
4.4.61 Erection of vertical superheater（reheater）.
1 Scope：erection of platen superheater，last stage superheater，last stage reheater，vertical low temperature superheater and other assemblies or knockdown parts.
2 Quality criterias and inspection methods are shown in Table 4.4.61.
Table 4.4.61 Erection of vertical superheater（reheater）
Note：a Ball-passing test before pipe arrays welding is to check whether there is any foreign thing during equipment storage and handling period and eliminate any equipment pipe explosion hidden trouble.
4.4.62 Assembly of horizontal type superheater（reheater）.
1 Scope：horizontal type superheater and reheater assembly in rear vertical shaft.
2 Quality criterias and inspection methods are shown in Table 4.4.62.
Table 4.4.62 Assembly of horizontal type superheater（reheater）
Table 4.4.62（Continued）
Note：a Assembled pipe arrays ball-passing test：inspection of welding joint inner diameter shall be carried out after welding joint assembly to prevent any internal blocking.
4.4.63 Erection of ceiling superheater.
1 Scope：erection of membrane wall and single pipe knockdown parts of ceiling superheater
2 Quality criterias and inspection methods are shown in Table 4.4.63.
Table 4.4.63 Erection of ceiling superheater
Table 4.4.63（Continued）
4.4.64 Erection of horizontal type superheater（reheater）.
1 Scope：erection of horizontal type superheater，reheater assemblies or knockdown parts.
2 Quality criterias and inspection methods are shown in Table 4.4.64.
Table 4.4.64 Horizontal type superheater（reheater）erection
Table 4.4.64（Continued）
Note：a Ball-passing test before pipe arrays welding is to check whether there is any foreign thing during equipment storage and handling period and eliminate any equipment pipe explosion hidden trouble.
4.4.65 Assembly of bi-flux heater.
1 Scope：assembly of bi-flux heater.
2 Quality criterias and inspection methods are shown in Table 4.4.65.
Table 4.4.65 Assembly of bi-flux heater
Table 4.4.65（Continued）
4.4.66 Erection of bi-flux heater assembly.
1 Scope：erection of bi-flux heater assembly.
2 Quality criterias and inspection methods are shown in Table 4.4.66.
Table 4.4.66 Erection of bi-flux heater assembly
4.4.67 Economizer assembly.
1 Scope：economizer equipment integral assembly or pipe arrays single plate assembly.
2 Quality criterias and inspection methods are shown in Table 4.4.67.
Table 4.4.67 Economizer assembly
Table 4.4.67（Continued）
Note：a Pipe ball-passing test：a ball-passing test shall be carried out after single array assembly has been welded；and weld joint inner diameter shall be inspected.
4.4.68 Economizer erection.
1 Scope：erection of economizer equipment assembly or pipe arrays single plates.
2 Quality criterias and inspection methods are shown in Table 4.4.68.
Table 4.4.68 Economizer erection
Table 4.4.68（Continued）
Note：a pipe arrays support inspection shall only be limited to partition wall structures.
4.4.69 Assembly of hanger tubes.
1 Scope：assembly of back waterwall hanger tubes，back water drain pipes（array pipes），and economizer hanger tubes.
2 Quality criterias and inspection methods are shown in Table 4.4.69.
Table 4.4.69 Assembly of hanger tubes
Table 4.4.69（Continued）
4.4.70 Erection of hanger tubes.
1 Scope：erection of the back waterwall hanger tubes，back water drain pipes（array pipes），economizer hanger tubes.
2 Quality criterias and inspection methods are shown in Table 4.4.70.
Table 4.4.70 Erection of hanger tubes
4.4.71 Buckstay erection.
1 Scope：erection of buckstays of waterwall，extension waterwall（superheater）and enclosed wall.
2 Quality criterias and inspection methods are shown in Table 4.4.71.
Table 4.4.71 Buckstay erection
4.4.72 Hydrostatic test for utility boiler.
1 Scope：hydrostatic test for utility boiler after boiler erection.
2 Quality criterias and inspection methods are shown in Table 4.4.72.
Table 4.4.72 Hydrostatic test for utility boiler
Note：a Hydrostatic test ambient temperature：if it may not meet the standard provision and the hydrostatic test shall be carried out immediately，then reliable cold protection and anti-freezing measures shall be taken.
4.4.73 Ball-passing test certification.
1 Scope：inspection of ball-passing test of boiler heating surfaces equipment pipes.
2 The certification contents shall meet the requirements of Table 4.4.73.
Table 4.4.73 Ball-passing test certification
4.4.74 Certification of closing header（vessel）.
1 Scope：cleaning and inspection as well as closing of continuous and periodic blowdown，drain flash tank，water pocket，boiler header.
2 Quality criterias and inspection methods are shown in Table 4.4.74.
Table 4.4.74 Certification of header closing（vessel）
4.4.75 Pipe flushing certification.
1 Scope：flushing inspection after erection of boiler proper and attached pipes.
2 Quality criterias and inspection methods are shown in Table 4.4.75.
Table 4.4.75 Pipe flushing certification
4.4.76 Pipe blowing certification.
1 Scope：blowing inspection of boiler miscellaneous pipes and other systems.
2 Quality criterias and inspection methods are shown in Table 4.4.76.
Table 4.4.76 Pipe blowing certification
4.4.77 Drum closing certification.
1 Scope：the inspection of internals in boiler drum after erection and before closing.
2 Quality criterias and inspection methods are shown in Table 4.4.77.
Table 4.4.77 Drum closing certification
4.4.78 Certification of hydrostatic test for utility boiler.
1 Scope：inspection of hydrostatic test for utility boiler processes and results.
2 Quality criterias and inspection methods are shown in Table 4.4.78.
Table 4.4.78 Certification of hydrostatic test for utility boiler
4.4.79 Inspection and certification of boiler setting seal welding.
1 Scope：inspection of welding and closing of boiler proper primary and secondary seals.
2 Quality criterias and inspection methods are shown in Table 4.4.79.
Table 4.4.79 Inspection and certification of boiler setting seal welding
4.4.80 Erection of boiler attached pipes.
1 Scope：erection of boiler blowdown，sampling，drain and water discharge，soot blowing，steam discharge and chemical dosing and other pipes.
2 Quality criterias and inspection methods are shown in Table 4.4.80.
Table 4.4.80 Erection of boiler attached pipes
Table 4.4.80（Continued）
Table 4.4.80（Continued）
Note：When there is no design provision，it shall be ensured that the slope for blowdown and drain pipes shall be no less than 0.2% in operating situation.A waterwall downward expansion and thermal compensation shall be taken into account and the pipe drain slope shall be 2% when the pipes in the soot blowing system are erected.
4.4.81 Erection of blowdown（drain）flash tank.
1 Scope：erection of blowdown（drain）flash tank，air heater flushing tank and steam storage tank.
2 Quality criterias and inspection methods are shown in Table 4.4.81.
Table 4.4.81 Erection of blowdown（drain）flash tank
Table 4.4.81（Continued）
4.4.82 Erection of Soot Blower.
1 Scope：this table shall be suitable for erection of steam soot blowers and pulse soot blowers.
2 Quality criterias and inspection methods are shown in Table 4.4.82.
Table 4.4.82 Erection of soot blower
Table 4.4.82（Continued）
4.4.83 Erection of drum water level lndicator.
1 Scope：erection of drum water level indicator and other similar types of water level indicators.
2 Quality criterias and inspection methods are shown in Table 4.4.83.
Table 4.4.83 Erection of drum water level lndicator
Table 4.4.83（Continued）
4.4.84 Erection of piston/pulse safety devices.
1 Scope：erection of pulse safety device consisted of piston main safety valve and spring（or heavy hammer）pulse valve device.
2 Quality criterias and inspection methods are shown in Table 4.4.84.
Table 4.4.84 Erection of piston/pulse safety devices
Table 4.4.84（Continued）
4.4.85 Erection of spring safety devices.
1 Scope：erection of spring safety devices.
2 Quality criterias and inspection methods are shown in Table 4.4.85.
Table 4.4.85 Erection of spring safety devices
4.4.86 Erection of pressure gauges.
1 Scope：erection of boiler local pressure gauges.
2 Quality criterias and inspection methods are shown in Table 4.4.86.
Table 4.4.86 Erection of pressure gauges
4.4.87 Erection of expansion indicators.
1 Scope：erection of boiler proper expansion indicators.
2 Quality criterias and inspection methods are shown in Table 4.4.87.
Table 4.4.87 Erection of expansion indicators
Table 4.4.87（Continued）
4.4.88 Pipe leak test certification.
1 Scope：leak test after erection of boiler attached pipes.
2 The certification contents shall meet the requirements of Table 4.4.88.
Table 4.4.88 Pipe leak test certification
4.4.89 Assembly and erection of gas，air，coal and powder pipes.
1 Scope：assembly of flue gas，air ducts，crude coal pipes and pulverized coal preparation pipes and primary air pipes；and erection of flue gas，air ducts，crude coal pipe and pulverized coal preparation pipes and primary air pipes.
2 Quality criterias and inspection methods are shown in Table 4.4.89.
Table 4.4.89 Assembly and erection of gas，air，coal and powder pipes
Table 4.4.89（Continued）
4.4.90 Erection of gas，air，coal，powder pipe operating devices.
1 Scope：erection of operating devices for gas flues，air ducts，crude coal pipes and pulverized coal preparation pipes/primary air pipes.
2 Quality criterias and inspection methods are shown in Table 4.4.90.
Table 4.4.90 Erection of gas，air，coal，powder pipe operating devices
4.4.91 Erection of gates in fule gas，air，coal and powder pipes.
1 Scope：erection of flue gas，air ducts，crude coal pipes and pulverized coal preparation pipes/primary air pipes.
2 Quality criterias and inspection methods are shown in Table 4.4.91.
Table 4.4.91 Erection of gates in gas，air，coal and powder pipes
Table 4.4.91（Continued）
4.4.92 Erection of mechanical measuring powder devices.
1 Scope：erection of measuring powder devices in a pulverizing system.
2 The quality criteria and inspection method are shown in Table 4.4.92.
Table 4.4.92 Erection of mechanical measuring powder devices
4.4.93 Erection of fire extinguishing devices.
1 Scope：erection of fire extinguishing devices in a pulverizing system.
2 Quality criterias and inspection methods are shown in Table 4.4.93.
Table 4.4.93 Erection of fire extinguishing devices
4.4.94 Erection of supports and hangers for gas，air，coal and powder pipes.
1 Scope：erection of supports and hangers for gas flues，air ducts，crude coal pipes and pulverized coal preparation pipes and primary air pipes.
2 Quality criterias and inspection methods are shown in Table 4.4.94.
Table 4.4.94 Erection of supports and hangers for gas，air，coal and powder pipes
4.4.95 Erection of mill classifier and cyclone collector.
1 Scope：erection of mill classifier and cyclone collector in a pulverizing system.
2 Quality criterias and inspection methods are shown in Table 4.4.95.
Table 4.4.95 Erection of mill classifier and cyclone collector
Table 4.4.95（Continued）
4.4.96 Oil leak test certification of weld joints in gas，air，coal and powder pipes.
1 Scope：oil leak test certification of weld joints in gas，air，coa and powder pipes.
2 Oil leak test certification of weld joints in gas，air，coa and powder pipes shall meet the requirements of Table 4.4.35.
4.4.97 Expansion indication records in each process.
1 Scope：expansion indication records before and after each process of water filling for boiler hydrostatic test，boiler ignition as well as the whole unit start-up.
2 The record shall be filled according to requirements of Table 4.4.97.
Table 4.4.97__________stage boiler expansion indication record sheet
4.4.98 Inspection and certification of each-stage hanging devices loading.
1 Scope：loading inspection certification of hanging devices after boiler hanging devices have been loaded and a hydrostatic test has been carried out，and when a steam leak test is carried out.
2 The certification contents shall meet the requirements of Table 4.4.98.
Table 4.4.98 Inspection and certification of each-stage hanging devices loading
4.4.99 Erection of boiler ash removal system equipment.
1 Scope：erection of ash removal system AV pump，MD pump，TD pump，gasification plates，and filters.
2 Quality criterias and inspection methods are shown in Table 4.4.99.
Table 4.4.99 Erection of boiler ash removal system equipment
Table 4.4.99（Continued）
Table 4.4.99（Continued）
4.4.100 Erection of boiler slag bunker and attached equipment.
1 Scope：erection of slag bunker，dewatering tank and buffering tank.
2 Quality criterias and inspection methods are shown in Table 4.4.100.
Table 4.4.100 Erection of boiler slag bunker and attached equipment
Table 4.4.100（Continued）
4.4.101 Mandatory provisions implementation inspection sheet of subsection project of boiler steel structure erection and combustion equipment erection.
1 Scope：mandatory provisions implementation inspection of subsection project of boiler steel structure erection and combustion equipment erection.
2 Mandatory provisions implementation situations of the subsection project of boiler steel structure erection and combustion equipment erection shall meet the requirements of Table 4.4.101.
Table 4.4.101 Implementation inspection sheet of mandatory provisions of subsection project of boiler steel structure erection and combustion equipment erection
Note：Contents in this sheet may be added or decreased according to actual situations.
4.4.102 Mandatory provisions implementation inspection sheet of subsection project of boiler drum erection.
1 Scope：mandatory provisions implementation inspection of drum，steam-water separator，water pocket erection.
2 Mandatory provisions implementation of the subsection project of boiler drum erection shall meet the requirements of Table 4.4.102.
Table 4.4.102 Implementation inspection sheet of mandatory provisions of subsection project of boiler drum erection
Note：Contents in this sheet may be added or decreased according to actual situations.
4.4.103 Implementation inspection sheet of mandatory provisions of erection subsection project of boiler heating surfaces equipment and pipes.
1 Scope：mandatory provisions implementation situations inspection of erection of waterwall，superheater，reheater，economizer and connecting pipes.
2 Mandatory provisions implementation situations of erection of boiler heating surfaces equipment and pipes shall meet the requirements of Table 4.4.103.
Table 4.4.103 Implementation inspection sheet of mandatory provisions of erection subsection project of boiler heating surfaces equipment and pipes
Table 4.4.103（Continued）
Note：Contents in this sheet may be added or decreased according to actual situations.
4.4.104 Mandatory provisions implementation inspection sheet of erection subsection project of boiler miscellaneous pipes.
1 Scope：mandatory provisions implementation inspection of erection for boiler blowdown，sampling，drain discharge，heating，soot blowing，steam discharge and chemical feed and other pipes.
2 Mandatory provisions implementation of erection subsection project of boiler miscellaneous pipes shall meet the requirements of Table 4.4.104.
Table 4.4.104 Implementation inspection sheet of mandatory pprovisions of erection subsection project of boiler miscellaneous pipes
Table 4.4.104（Continued）
Note：Contents in this sheet may be added or decreased according to actual situations.
4.4.105 Mandatory provisions implementation inspection sheet of subsection project of hydrostatic test for whole boiler.
1 Scope：mandatory provisions implementation inspection of hydrostatic test for utility boiler.
2 Mandatory provisions implementation situations of the subsection project of hydrostatic test for whole boiler shall meet the requirements of Table 4.4.105.
Table 4.4.105 Implementation inspection sheet of mandatory pprovisions of subsection project of hydrostatic test for utility boiler
Table 4.4.105（Continued）
Note：Contents in this sheet may be added or decreased according to actual situations.