4.4 Steam Turbine Proper Erection
4.4.1 Bearing pedestal and pad erection.
Applicable scope:applicable to erection of ST proper bearing，thrust bearing，bearing pedestal，with the following inspection items:bearing pedestal in place and alignment，pad and oil baffle gap adjustment，thrust bearing gap adjustment，bearing pedestal covering.
1 Bearing pedestal in place and alignment inspection and acceptance are given in Table 4.4.1-1.
Table 4.4.1-1 Bearing pedestal in place and alignment
2 Bearing pad and oil baffle gap measurement and adjustment inspection and acceptance are given in Table 4.4.1-2.
Table 4.4.1-2 Measurement and adjustment of gap between bearing pad and oil Baffle
Table 4.4.1-2（Continued）
Fig.4.4.1-2 Gap between bearing pad and oil baffle
3 Thrust bearing gap measurement，adjustment inspection and acceptance are given in Table 4.4.1-3.
Table 4.4.1-3 Thrust bearing gap measurement and adjustment
Table 4.4.1-3（Continued）
4 Bearing pedestal covering inspection and acceptance are given in Table 4.4.1-4.
Table 4.4.1-4 Bearing pedestal covering
4.4.2 Cylinder cleaning and inspection
Applicable scope:applicable to ST proper cylinder and rotor cleaning and inspection，with the following inspection items:LP cylinder cleaning and inspection，HP/IP cylinder cleaning and inspection，Inner casing steam admission pipe cleaning and inspection，HP/IP cylinder nozzle chamber，diaphragm（carrier ring），steam seal（bushing）inspection，LP cylinder steam admission chamber，diaphragm（carrier ring），steam seal（bushing）inspection.
1 LP cylinder cleaning and inspection and acceptance are given in Table 4.4.2-1.
Table 4.4.2-1 LP cylinder cleaning and inspection
2 HP/IP cylinder cleaning and inspection and acceptance are given in Table 4.4.2-2.
Table 4.4.2-2 HP/IP cylinder cleaning and inspection
3 HP-IP inner casing steam admission pipe cleaning and inspection and acceptance are given in Table 4.4.2-3.
Table 4.4.2-3 Cleaning and inspection of HP-IP inner casing steam admission pipes
Table 4.4.2-3（Continued）
2 HP/IP cylinder nozzle chamber，diaphragm（carrier ring），steam seal（bushing）inspection and acceptance are given in Table 4.4.2-4.
Table 4.4.2-4 Inspection of HP/IP cylinder nozzle chamber，diaphragm（carrier ring），seal（bushing）
Table 4.4.2-4（Continued）
5 LP cylinder steam admission chamber，Diaphragm（carrier ring），steam seal（bushing）inspection and acceptance are given in Table 4.4.2-5.
Table 4.4.2-5 Inspection of LP cylinder nozzle chamber，diaphragm（carrier ring），seal（bushing）
Table 4.4.2-5（Continued）
4.4.3 ST rotor inspection and acceptance are given in Table 4.4.3.
Table 4.4.3 ST rotor inspection
Table 4.4.3（Continued）
4.4.4 Cylinder assembly in place
Applicable scope:Applicable to ST proper LP cylinder and HP/IP cylinder assembly，jointing surface gap inspection and cylinder in place and alignment，with the following inspection items:LP cylinder assembly，jointing surface gap inspection，HP/IP cylinder assembly，jointing surface gap inspection，cylinder in place and alignment.
1 LP cylinder assembly，jointing surface gap inspection and acceptance are given in Table 4.4.4-1.
Table 4.4.4-1 LP Cylinder assembly and joint surface gap inspection
Table 4.4.4-1（Continued）
2 HP/IP cylinder jointing surface gap inspection and acceptance are given in Table 4.4.4-2.
Table 4.4.4-2 HP/IP cylinder joint surface gap inspection
3 Cylinder in place and alignment inspection and acceptance are given in Table 4.4.4-3.
Table 4.4.4-3 Cylinder in place and alignment
Table 4.4.4-3（Continued）
4.4.5 Cylinder internal parts assembly erection.
Applicable scope:Applicable to ST proper cylinder internal parts assembly erection，with the following inspection items:1bearing pad bearing pedestal and cylinder and rotor centering，2 LP Inner casing erection，3HP/IP inner casing erection，4 HP nozzle chamber erection，5 HP/IP cylinder diaphragm（carrier ring），balance piston（ring），admission shunt ring，steam seal bushing erection，7 LP cylinder internal part groove centering，8 HP/IP cylinder internal part groove centering
1 Bearing pedestal，cylinder and rotor centering inspection and acceptance are given in Table 4.4.5-1.
Table 4.4.5-1 Centering of bearing pedestal，cylinder and rotor
Table 4.4.5-1（Continued）
2 LP inner casing erection inspection and acceptance are given in Table 4.4.5-2.
Table 4.4.5-2 LP inner casing erection
Table 4.4.5-2（Continued）
3 HP/IP inner casing erection inspection and acceptance are given in Table 4.4.5-3.
Table 4.4.5-3 HP/IP inner casing erection
4 HP nozzle chamber erection inspection and acceptance are given in Table 4.4.5-4.
Table 4.4.5-4 Erection of HP nozzle chamber
Table 4.4.5-4（Continued）
5 HP/IP cylinder diaphragm（carrier ring），balance piston（ring），admission shunt ring，steam seal bushing erection inspection and acceptance are given in Table 4.4.5-5.
Table 4.4.5-5 Erection of HP/IP diaphragm（carrier ring），balance piston（ring），admission shunt ring，Seal bushing
6 LP cylinder diaphragm（carrier ring），balance piston（ring），admission shunt ring，steam seal bushing erection inspection and acceptance are given in Table 4.4.5-6.
Table 4.4.5-6 Erection of LP diaphragm（carrier ring），balance piston（ring），admission shunt ring，seal bushing
7 LP cylinder internal part groove centering inspection and acceptance are given in Table 4.4.5-7.
Table 4.4.5-7 Centering of LP cylinder internal part groove
Table 4.4.5-7（Continued）
8 HP/IP cylinder internal part groove centering inspection and acceptance are given in Table 4.4.5-8.
Table 4.4.5-8 Centering of HP/IP cylinder internal part groove
4.4.6 Cylinder load distribution inspection and acceptance are given in Table 4.4.6.
Table 4.4.6 Cylinder Load Distribution
4.4.7 Flow path clearance measurement and adjustment inspection and acceptance are given in Table 4.4.7.
Table 4.4.7 Flow path clearance measurement and adjustment
Table 4.4.7（Continued）
4.4.8 Steam seal gap measurement and adjustment inspection and acceptance are given in Table 4.4.8.
Table 4.4.8 Steam seal gap measurement and adjustment
Table 4.4.8（Continued）
4.4.9 ST covering.
Applicable scope:applicable to ST covering，with the following inspection items:inspection before ST covering，ST covering.
1 Inspection and acceptance of ST covering are given in Table 4.4.9-1.
Table 4.4.9-1 Inspection prior to steam turbine covering
Table 4.4.9-1（Continued）
2 ST covering inspection and acceptance are given in Table 4.4.9-2.
Table 4.4.9-2 Steam turbine covering inspection
Table 4.4.9-2（Continued）
4.4.10 Shafting adjustment and connection.
Applicable scope:applicable to shafting adjustment and connection，with the following inspection items:coupling centering，coupling reaming connection.
1 Coupling centering inspection and acceptance are given in Table 4.4.10-1.
Table 4.4.10-1 Coupling centering
Table 4.4.10-1（Continued）
2 Coupling reaming connection inspection and acceptance are given in Table 4.4.10-2.
Table 4.4.10-2 Coupling reaming connection
Table 4.4.10-2（Continued）
4.4.11 Sliding pin system gap measurement and adjustment.
Applicable scope:applicable to sliding pin system gap measurement and adjustment，with the following inspection items:sliding pin system gap adjustment，bearing pedestal and cylinder centering girder erection，3 push and pull device erection.
1 Sliding pin system gap measurement and adjustment inspection and acceptance are given in Table 4.4.11-1.
Table 4.4.11-1 Sliding pin system gap measurement and adjustment
Table 4.4.11-1（Continued）
Fig.4.4.11
2 Bearing pedestal and cylinder centering girder erection inspection and acceptance are given in Table 4.4.11-2.
Table 4.4.11-2 Erection of centering girder between pedestal and cylinder
3 Push-pull device erection inspection and acceptance are given in Table 4.4.11-3.
Table 4.4.11-3 Erection of push-pull device
Table 4.4.11-3（Continued）
4.4.12 Turning gear inspection and erection.
Applicable scope:applicable to turning gear inspection and erection，with the following inspection items:turning gear cleaning inspection，turning gear assembly.
1 Turning gear cleaning inspection and acceptance are given in Table 4.4.12-1.
Table 4.4.12-1 Turning gear cleaning
2 Turning gear assembly inspection and acceptance are given in Table 4.4.12-2.
Table 4.4.12-2 Turning gear assembly
4.4.13 IP-LP cylinder crossover pipe erection inspection and acceptance are given in Table 4.4.13.
Table 4.4.13 Erection of IP-LP crossover pipe
4.4.14 Inspection before thermal insulation of cylinder，main stop valve and regulation valve inspection and inspection and acceptance of ST generator lagging enclosure erection are given in Table 4.4.14.
Table 4.4.14 Inspection before ST thermal insulation and lagging enclosure erection
4.4.15 Mandatory implementation inspection table of foundation preparation，iron cushion（block）machining before erection of ST generator are given in Table 4.4.15.
Table 4.4.15 Mandatory provision implementation inspection table of foundation preparation，iron cushion（cushion block）machining prior to erection of steam turbine generator
Table 4.4.15（Continued）
4.4.16 Mandatory provision implementation inspection of steam turbine proper erection in subsection project is given in Table 4.4.16.
Table 4.4.16 Mandatory provision implementation inspection table of steam turbine proper erection in subsection project
Table 4.4.16（Continued）
Table 4.4.16（Continued）
Table 4.4.16（Continued）
Table 4.4.16（Continued）
