SHT3501-2021 石油化工有毒、可燃介质钢制管道工程施工及验收规范

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ICS 77.120.01

P 72

备案号：J3024-2022

中华人民共和国石油化工行业标准

SH/T 3501—2021

代替 SH 3501—2011

石油化工有毒、可燃介质钢制管道工程

施工及验收规范

Construction and acceptance specification for toxic and combustible fluid steel

piping engineering in petrochemical industry

2021-08-21 发布 2022-02-01 实施

中华人民共和国工业和信息化部

发布

前言 ····························································································································· V

1 范围 ························································································································· 1

2 规范性引用文件 ·········································································································· 1

3 术语和定义 ················································································································ 2

4 基本规定 ··················································································································· 3

5 管道组成件和支承件的到货验收 ····················································································· 4

5.1 一般规定 ············································································································ 4

5.2 管子和管件的验收 ·································································································· 5

5.3 阀门验收 ·············································································································· 6

5.4 法兰、法兰盖及翻边短节的验收 ················································································ 8

5.5 紧固件的验收 ········································································································ 8

5.6 垫片的验收 ··········································································································· 9

5.7 金属波纹管膨胀节的验收 ························································································· 9

5.8 爆破片安全装置的验收 ·························································································· 10

5.9 阻火器的验收 ······································································································ 10

5.10 管道支承件的验收 ······························································································ 10

6 阀门试验 ·················································································································· 11

6.1 一般规定 ············································································································· 11

6.2 壳体试验 ············································································································· 11

6.3 密封试验 ············································································································ 12

6.4 上密封试验 ········································································································· 14

6.5 安全阀调整试验 ··································································································· 14

7 管道预制及安装 ········································································································ 15

7.1 管道预制 ············································································································ 15

7.2 管道安装 ············································································································ 17

8 管道焊接 ················································································································ 20

8.1 一般规定 ·········································································································· 20

8.2 焊前准备与接头组对 ··························································································· 21

8.3 焊接工艺要求 ···································································································· 23

8.4 焊后热处理 ········································································································· 24

8.5 焊接质量检查 ···································································································· 27

9 管道系统试验 ·········································································································· 29

9.1 管道系统压力试验 ······························································································ 29

SH/T 3501—2021

III

9.2 管道系统吹扫和清洗 ····························································································· 31

9.3 泄漏试验 ············································································································ 32

9.4 真空度试验 ······································································································· 33

10 施工过程技术文件和交工技术文件 ············································································· 33

附录 A（资料性附录）常用有毒介质、可燃介质 ······························································· 35

附录 B（资料性附录）弯管加工记录 ··············································································· 38

本标准用词说明 ············································································································· 39

附：条文说明 ················································································································ 40

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摘要：

ICS77.120.01P72备案号：J3024-2022中华人民共和国石油化工行业标准SH/T3501—2021代替SH3501—2011石油化工有毒、可燃介质钢制管道工程施工及验收规范Constructionandacceptancespecificationfortoxicandcombustiblefluidsteelpipingengineeringinpetrochemicalindustry2021-08-21发布2022-02-01实施中华人民共和国工业和信息化部发布目次前言····················································...

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SHT3501-2021 石油化工有毒、可燃介质钢制管道工程施工及验收规范

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