GB50273-2022：锅炉安装工程施工及验收标准

GB50273-2022······1

1 总则······11

2 基础复检和放线······12

3 钢架······14

4 锅筒、集箱和受热面管······18

4.1 锅筒、集箱······18

4.2 受热面管······20

4.3 受压元件焊接······24

4.4 省煤器、过热器及钢管式空气预热器······27

5 压力试验······30

6 取源部件、仪表、阀门、吹灰器和辅助装置······34

6.1 取源部件······34

6.2 仪表······36

6.3 阀门、吹灰器和辅助装置······39

7 燃烧设备······42

7.1 炉排······42

7.2 抛煤机······45

7.3 燃烧器······46

8 炉墙砌筑和绝热层······48

8.1 炉墙砌筑······48

8.2 绝热层······49

9 漏风试验、烘炉、煮炉、严密性试验和试运行······50

9.1 漏风试验······50

9.2 烘炉······51

9.3 煮炉······53

9.4 严密性试验和试运行······54

10 工程验收······56

本标准用词说明······58

引用标准名录······59

附：条文说明······60

1 总则······64

2 基础复检和放线······66

3 钢架······67

4 锅筒、集箱和受热面管······68

4.1 锅筒、集箱······68

4.2 受热面管······68

4.3 受压元件焊接······73

4.4 省煤器、过热器及钢管式空气预热器······74

5 压力试验······76

6 取源部件、仪表、阀门、吹灰器和辅助装置······78

6.1 取源部件······78

6.2 仪表······80

6.3 阀门、吹灰器和辅助装置······81

7 燃烧设备······85

7.1 炉排······85

7.2 抛煤机······85

7.3 燃烧器······86

8 炉墙砌筑和绝热层······87

8.1 炉墙砌筑······87

8.2 绝热层······88

9 漏风试验、烘炉、煮炉、严密性试验和试运行······89

9.1 漏风试验······89

9.2 烘炉······90

9.3 煮炉······91

9.4 严密性试验和试运行······91

10 工程验收······93