受内压大锥角无折边封头



受内压大锥角无折边封头

项目号 ITEM NO.

Calculation of  Large angle conical head

文件号 DOC. NO.

注：

1

黄色的背景是需要输入的项，蓝色字体为结果。如果出现红色文字，则说明计算不通过。

本计算书是参照HG/T 20582-2020 24节编制的。

This calculation sheet is prepared referring to HG/T 20582-2020 CL.24

图示FIG

输入数据 Input Data

设计压力 Design Pressure

p=

0.4

MPa

设计温度 Design Temperature

T=

1

oC

锥体大径 Diameter of cone large side

Di=

2000

m

锥体设计温度下许用应力                                                                                           Allowance stress of cone at design temperature

[σ]t=

180

MPa

锥体厚度 Thickness of cone

δ

26

mm

半顶角 Half angle

α

85

o

筒体设计温度下许用应力                                                                                               Allowance stress of shell at design temperature

[σ]2t=

180

MPa

筒体厚度 Thickness of shell

δ2

27

mm

焊缝系数 Joint efficiency

Φ=

1

厚度附加量 Additional thickness

C=

1

mm

设计计算 Checking strength

锥体试算厚度                                                                Try calculate Thickness of cone

δ1=δ

26.00

mm

系数factor K

4.26

系数factor β

9.17

系数factor β1

β1=max(0.5 , β)

9.17

系数factor δ2P

20.39

mm

δ2

δ2=δ2p+C

21.39

mm

锥壳大端厚度δk                                                             Large side thickness of cone

26.53

mm

锥壳筒体过渡段设计的厚度δ1'                                    Design thickness for cone-to-cylinder junction

20.61

mm

锥壳按照平盖设计的厚度δp                                           Calculation thickness according to flat head

27.71

mm

锥壳设计厚度δ'                                                  Design thickness of cone

δ'=min{ max (δk , δ1') , δp}

26.53

mm

δ2

≥

δ2p

It is safe

δ1

≥

δ1'

It is safe

δ

＜

δ'

It is NOT safe