4.12 Boiler Setting Construction
4.12.1 Boiler setting of membrane wall,superheater and cold ash hopper.
1 Construction quality criteria and inspection methods to boiler setting of the membrane wall,superheater and cold ash hopper,insulation concrete and trowel finish coat are shown in Table 4.12.1-1.
Table 4.12.1-1 Construction of setting of membrane wall,superheater and cold ash hopper,insulation concrete and trowel finish coat
Table 4.12.1-1(Continued)
Note:a—outer wall temperature measurement is only limited to the boiler proper(waterwall and superheater settings).Other locations are not included.
2 Quality criterias and inspection methods to mineral fiber felt and board laying for settings of membrane waterwall,superheater and cold ash hopper are shown in Table 4.12.1-2.
Table 4.12.1-2 Mineral fine fiber felt and board laying for settings of membrane wall,superheater and cold ash hopper
Table 4.12.1-2(Continued)
4.12.2 Ceiling superheater setting.
1 Scope:construction of top refractory concrete,insulation concrete,plastic refractory materials,slight expansion plastic refractory materials and trowel finish coat in ceiling superheater and furnace top setting.
2 Quality criteria and inspection methods are shown in Table 4.12.2.
Table 4.12.2 Ceiling superheater setting
Table 4.12.2(Continued)
Table 4.12.2(Continued)
Note:a—trowel finish coat surface temperature measurement shall not be required for the furnace top setting.
4.12.3 Upper end setting.
1 Scope:construction of mineral fine fiber felt and board laying of superheater,reheater and other upper end settings.
2 Quality criteria and inspection methods are shown in Table 4.12.3.
Table 4.12.3 Upper end setting
Table 4.12.3(Continued)
4.12.4 Economizer setting.
1 Scope:construction of insulation concrete,refractory concrete masonry,hard insulation boars and refractory bricks for economizer setting.
2 Quality criteria and inspection methods are shown in Table 4.12.4.
Table 4.12.4 Economizer setting
Table 4.12.4(Continued)
Table 4.12.4(Continued)
Nate:a—If any heat resistant steel is used,asphalt shall not be brushed or coated.
4.12.5 Burner setting.
1 Scope:burner setting.
2 Quality criteria and inspection methods are shown in Table 4.12.5.
Table 4.12.5 Burner setting
Table 4.12.5(Continued)
Note:a—if any heat resistant steel is used,asphalt may not be brushed or coated.
4.12.6 Setting for manholes.
1 Scope:setting for manholes.
2 Quality criteria and inspection methods are shown in Table 4.12.6.
Table 4.12.6 Setting for manholes
Table 4.12.6(Continued)
Note:a—if any heat resistant steel is used,asphalt shall not be brushed or coated.
4.12.7 Header setting.
1 Scope:construction of header setting with casting concrete.
2 Quality criteria and inspection methods are shown in Table 4.12.7.
Table 4.12.7 Header setting
Table 4.12.7(Continued)
Table 4.12.7(Continued)
Note:a—if any heat resistant steel is used,asphalt shall not be brushed or coated.
4.12.8 Slag room setting.
1 Scope:construction of slag room setting.
2 Quality criteria and inspection methods are shown in Table 4.12.8.
Table 4.12.8 Slag room setting
Table 4.12.8(Continued)
Note:a—if any heat resistant steel is used,asphalt shall not be brushed or coated.
4.12.9 Casing setting.
1 Scope:casing insulation laying of top casing,vertical back shaft ash hopper,flue gas duct and wind box.
2 Quality criteria and inspection methods are shown in Table 4.12.9.
Table 4.12.9 Casing setting
Table 4.12.9(Continued)
Note:a—trowel finish coat surface temperature measurement shall not be required for the furnace top boiler setting.
4.12.10 Re-inspection sampling record of boiler setting and insulation materials.
1 Scope:re-inspection sampling record of the boiler setting and insulation materials.
2 The re-inspection sampling record shall meet the requirements of Table 4.12.10.
Table 4.12.10 Re-inspection sampling record of boiler setting and insulation materials
4.12.11 Certification of acceptance of concealing project and key processes.
1 Scope:acceptance certification of the concealed project and key processes of boiler setting.
2 The certification shall meet the requirements of Table 4.12.11.
Table 4.12.11 Acceptance certification of concealed project and key processes
4.12.12 Surface temperature measurement record of boiler setting.
1 Scope:surface temperature measurement record of boiler setting.
2 The surface temperature measurement record of boiler setting shall meet the requirements of Table 4.12.12.
Table 4.12.12 Surface temperature measurement record of boiler setting
4.12.13 Boiler ash pit made of cast stone tile.
1 Scope:boiler ash pit made of cast stone tile.
2 Quality criteria and inspection methods are shown in Table 4.12.13.
Table 4.12.13 Boiler ash pit made of cast stone tile
4.12.14 Erection of internal boiler setting pins(support parts).
1 Scope:erection of the internal setting pins(support parts)of a dense phase zone of circulating fluidized bed boiler furnace,water cooled air compartments,external bed,bottom ash cooler,air duct burner,cyclone separator body and inlet and outlet flue gas ducts,feeding back system as well as the chamber of a waste incineration boiler.
2 Quality criterias and inspection methodss are shown in Table 4.12.14.
Table 4.12.14 Erection of internal boiler setting pins(support parts)
Table 4.12.14(Continued)
Note:Support parts include the support annular plate and belt studs.
4.12.15 Pouring of boiler insulation castable refractory of internal boiler settings.
1 Scope:pouring of insulation castable refractory of internal boiler settings of bottom ash cooler,external bed,cyclone separator body and inlet and outlet flue gas ducts,feeding back system in a circulating fluidized bed boiler,as well as incineration chamber interior setting in a waste incineration boiler.
2 Quality criteria and inspection methods are shown in Table 4.12.15.
Table 4.12.15 Pouring of boiler insulation castable refractory of internal boiler settings
Table 4.12.15(Continued)
4.12.16 Pouring of internal boiler setting of boiler refractory insulation castable refractory.
1 Scope:pouring of internal boiler setting of refractory insulation castable refractory of water cooled wind box,air duct burner,cyclone separator inlet and outlet flue gas ducts,feeding back system flow passage internal setting in a circulating fluidized bed boiler.
2 Quality criteria and inspection methods are shown in Table 4.12.16.
Table 4.12.16 Pouring of boiler refractory insulation castable refractory of internal boiler setting
Table 4.12.16(Continued)
Note:a—it shall be filled when the acceptance is carried out to the grid plate air cap;otherwise,it may not be filled if there is no grid plate air cap.
4.12.17 Pouring of boiler refractory castable refractory of internal boiler setting.
1 Scope:pouring of internal boiler setting made of abrasion resistant refractory castable refractory in dense phase zone,air duct burner,bottom ash cooler,external bed,cyclone separator inlet and outlet flue gas ducts,feeding back system flow passage in a circulating fluidized bed boiler.
2 Quality criteria and inspection methods are shown in Table 4.12.17.
Table 4.12.17 Pouring of boiler refractory castable refractory of internal boiler setting
Table 4.12.17(Continued)
Table 4.12.17(Continued)
Note:a—it shall be filled when the acceptance is carried out to this item;otherwise,it may not be filled if there is not this item.
4.12.18 Construction of boiler refractory insulation(abrasion resistant and refractory)bricks of internal boiler setting.
1 Scope:pouring of internal boiler setting made of abrasion resistant and refractory castable refractory of bottom ash cooler,external bed,cyclone separator body,cyclone separator inlet and outlet flue gas ducts,feeding back system flow passage in a circulating fluidized bed boiler.
2 Quality criteria and inspection methods are shown in Table 4.12.18.
Table 4.12.18 Construction of boiler refractory insulation(abrasion resistant and refractory)bricks of internal boiler setting
Table 4.12.18(Continued)
4.12.19 Spraying of boiler abrasion resistant and refractory materials of internal boiler setting.
1 Scope:spraying of internal boiler setting made of abrasion resistant and refractory materials of dense phase zone,air duct burner,bottom ash cooler,external bed,the cyclone separator body,cyclone separator inlet and outlet flue gas ducts,feeding back system flow passage in a circulating fluidized bed boiler.
2 Quality criteria and inspection methods are shown in Table 4.12.19.
Table 4.12.19 Spraying of boiler abrasion resistant and refractory materials of internal boiler setting
Table 4.12.19(Continued)
4.12.20 The whole boiler drying-out.
1 Scope:drying-out of internal boiler settings in a circulating fluidized bed boiler or incineration chamber of a waste incineration boiler.
2 Quality criteria and inspection methods are shown in Table 4.12.20.
Table 4.12.20 The whole boiler drying-out
4.12.21 Re-Inspection sampling record of boiler internal castable refractory setting.
1 Scope:re-inspection of internal boiler castable refractory setting in a circulating fluidized bed boiler or incineration chamber of a waste incineration boiler.
2 Quality criteria and inspection methods are shown in Table 4.12.21.
Table 4.12.21 Re-Inspection sampling record of boiler internal castable refractory setting
4.12.22 Boiler internal boiler setting construction record.
1 Scope:construction inspection of internal boiler settings in circulating fluidized bed boiler or incineration chamber of a waste incineration boiler.
2 Quality criterias and inspection methods are shown in Table 4.12.22.
Table 4.12.22 Boiler internal boiler setting construction record
4.12.23 Certification of inspection of the whole boiler drying-out.
1 Scope:Whole boiler drying-out of internal settings in a circulating fluidized bed boiler or incineration chamber of a waste incineration boiler.
2 Quality criterias and inspection methods are shown in Table 4.12.23.
Table 4.12.23 Certification of inspection of the whole boiler drying-out
4.12.24 Implementation inspection of mandatory provisions of construction subsection project of boiler settings.
1 Scope:implementation checklist of mandatory provisions on the subsection project of boiler settings construction.
2 The implementation inspection of mandatory provisions shall meet the requirements of Table 4.12.24.
Table 4.12.24 Implementation inspection of mandatory provisions of construction subsection project of boiler settings