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1、Air Preheater Erection Procedures Manual (F031OYA001XXXX)WRITTEN BY:CHEN GUOZHONGCHECKED BY:WANG CHANGXIAREVIEWED BY:JIANG SHUHAIAPPROVED BY:CHIEF ENGINEER:HARBIN BOILER COMPANY LIMITEDNovember 29, 2008INDEX1.General introductions. . 22.Field Erection Procedures for Modular Air Preheaters 22.1 Sugge
2、sted Field Erection Sequence Summary 22.2 General Field Erection Guidelines for Modular Air Preheaters. 42.3 Field Erection Procedures for Modular Air Preheaters 63.Air Preheater erection procedure checklist323.1 General Structure.323.2 Rotor.333.3 Support Bearing Assembly.333.4 Guide Bearing Assemb
3、ly343.5 Rotor Drive Assembly.353.6 Hot End Sector Plate Assemblies.363.7 Cold End Sector Plate Assemblies373.8 Axial Seal Plate Assemblies383.9 Hot and Cold Static Seal Assemblies383.10 Rotor Seal Assemblies.393.11 Rotor Stoppage Alarm Assembly403.12 Wash Pipe Assembly403.13 Fire Suppression System
4、Assembly403.14 Soot Blower413.15 Water Cooling System.413.16 Fire Detecting System.42 3.17 Oil Temperature System.421 General introductionsThese instructions are mainly about generalized erection guide of Ljungstrom Air Preheater. Erector shall prepare the detailed Erection Procedures based on this
5、manual and erection drawing according to the actual situation.Refer to the related instructions for the stoppage alarm system, rotor drive and the controlling system, fire detection device, cleaning device, leakage control system and oil lubrication system for details.2 Field Erection Procedures for
6、 Modular Air Preheaters2.1 Suggested Field Erection Sequence SummaryThe following sequence, for the field erection of Modular Tri-sector air preheaters, is a summary only and should be used for reference. For Bi-sector air preheaters, some components such as primary center section assembly and prima
7、ry sector plates are not supplied, this manual should be read in regardless of the related contents. The erector will have to perform the following steps:1) Obtain the air preheater support steel elevations and centerlines. Locate the expansion arrangements. Level the expansion arrangements to same
8、elevation.2) Install the support bearing in the cold end center section 3) Install the cold end center section on the expansion arrangements.4) Install the main pedestal/axial seal plate assemblies on the cold end center section. Apply temporary bracing.5) Install the rotor post, trunnion, spool ass
9、embly. 6) Install the hot end center section and the hot end primary center-section.7) Install the guide bearing assembly.8) Install the side-pedestal assemblies on the expansion arrangements. Apply temporary bracing.9) Install hot end and cold end side-pedestal pipe-braces.Exploded isometric view o
10、f air preheater10) Install the cold end primary center-section. Apply temporary bracing to support the center-section.11) Install the cold end pocket-ring assembly and cold end housing pipe braces.12) Install the primary pedestal/axial seal plate assembly on the cold end primary center section. Appl
11、y temporary bracing.13) Install the hot end pocket-ring assembly and hot end housing pipe braces.14) Assemble the remainder of the cold end connecting plate assembly - including the cold end tension ring segments, round-casing segments, and the duct corners.15) Install the cold end primary connectin
12、g plate flange.16) Assemble the rotor housing assembly, with the exception of the side-pedestal panels. These components should only be tack-welded in place so that the panels may be easily removed for rotor-module installation (later).17) Assemble the remainder of the hot end connecting plate assem
13、bly - including the hot end tension ring segments, round-casing segments, and the duct corners. The round-casing segments, between the side-pedestal columns, should only be tack-welded in place so that the panels may be easily removed for rotor-module installation (later).18) Install the hot end pri
14、mary connecting plate flange.19) Install the factory-assembled rotor modules. Install the mid-diaphragm/lug assemblies. Complete assembly of the rotor.20) Install the hot end connecting plate and housing round-casing segments, between the side-pedestal columns (module installation panels).21) Install the rotor drive assembly.22) Install the ship-loose basketed element.23) Install the rotor angles and sealing angles.24) Install all seals.25) Set the elevation of the sector plates.26) Set the radial location of the ax
