DL/T 5418-2009火电厂烟气脱硫吸收塔施工及验收规程

1 Scope

2 NormativeReferences

3 Terms and Definitions

4 General

5 Acceptance of Materials and Finished Products

5.1 Acceptance of MetalMaterials

5.2 Acceptance of Welding Materials

5.3 Acceptance of Non-metal Lining Materials

5.4 Acceptance of Finished Product Accessories

6 Prefabrication

6.1 General

6.2 Prefabrication of Bottom Plates

6.3 Prefabrication of WallPlates

6.4 Prefabrication of Roof Plates

6.5 Member Prefabrication

6.6 Preassembly

7 Assembly

7. 1General

7.2 Acceptance of Foundation

7.3 Foundation Marking

7.4 Assembly of Base Plates

7.5 Assembly of Wall Plates

7.6 Installationof Stiffener

7.7 Assembly of Roof Plates

7.8 Assembly of Flue Gas Inlets & Outlets

7.9 Assembly of Accessories Welded to the Absorber Body

8 Welding

8.1 Welding Procedure Qualification(WPQ)

8.2 WelderExamination

8.3 Welding Preparations

8.4 Welding Operations

8.5 Recommended Welding Sequence

8.6 VisualInspectionofWelds

8.7 Nondestructive Testing (NDT) and Leak Testing of Welds

8.8 Defect Repairing

9 Acceptance of Absorber Body

9.1 General

9.2 Geometric Shape and Dimensional Inspection of Absorber Body

9.3 Water Filling Test

10 Anticorrosion of Glass Resin Flake

10.1 General

10.2 Matrix Treatment

10.3 Lining Construction

10.4 Lining Inspection

10.5 Repairing

11 Anticorrosion of Rubber Lining

12 Installation of Absorber internals

12.1 General

12.2 Installation of Spraying Banks

12.3 Installation of Mist Eliminator

12.4 Installation of Agitator System

13 Painting and Insulation

14 Acceptance Records

Appendix A (Normative) Preparation and Inspection of T-joint Fillet Weld Specimens

Appendix B (Informative) Handover and Acceptance Table Article Explanation

This Code is written in accordance with The Notice of Industrial Codes and Standards Revision and Planning in 2006 issued by General Office of National Development and Reform Commission of
　　the People's Republic of China (Document No. (2006) 1093).Appendix A is normative appendix and Appendix is informative appendix.
　　This code is issued by China Electricity Council.
　　This code is centralized under the Technical Committee on Environmental Protection of Standardization Administration of Power Industry.