DLT5418-2009 火电厂烟气脱硫吸收塔施工及验收规程.pdf

ICS13.030.40

J88

备案号：J917-2009DL

中华人民共和国电力行业标准

pDL/T5418-2009

火电厂烟气脱硫

阪收塔施工及验收规程

Codeforconstructionandacceptanceoffluegas

desulphurizationabsorberofthermalpowerplant

2009-12-01实施

2009-07-22发布

中华人民共和国国家能源局发布

DLIT5418-2009

目次

前言………………·…w

1范围

2规范性引用文件……·········2

3术语和定义……………·4

4总则……………·…5

5材料和成品件验收……………6

5.1金属材料验收………6

5.2焊接材料验收……………6

5.3非金属衬里材料验收7

5.4成品附件验收……········7

6预制……………·…………8

6.1一般规定……………·8

6.2底板预制…………..10

6.3壁板预制…·…………………12

6.4顶板预制……………………··13

6.5构件预制…………13

6.6预组装…·…………14

7组装………………·15

7.1一般规定…………...~..•~..……15

7.2基础验收．．．．…………………15

7.3基础划线………………16

7.4底板组装……………·16

7.5壁板组装…..4……….17

7.6加强筋的安装········································································20

7.7顶板组装………………···················20

DL/T5418-2009

7.8烟气进出口组装………················…………21

7.9塔体焊接附件组装…·…………21

8焊接………·······……24

8.1焊接工艺评定·····································································…24

8.2焊工考核……………………·24

8.3焊接施工准备………·25

8.4焊接施工…25

85推荐的焊接顺序……………·······………·······27

8.6焊缝外观检查·················……·····································…28

8.7焊缝无损探伤及严密性试验…········…………29

8.8缺陷修补………·········……························……·31

9塔体验收·······························……·······················……··……32