爆破片设计的基本资料

爆破片设计的基本资料

1、用途：一般不适用安全阀的场合采用爆破片装置；介质粘度大或介质杂

质多的地方用爆破片。最简单的一点，安全阀可以重复使用，爆破片装置是一次

性用品。

2、定义：

2.1爆破片装置：由爆破片（或爆破片组件）和夹持器（或支撑圈）等装配

组成的压力泄放安全装置。当爆破片两侧压力差达到预定温度下的预定值时，爆

破片即可动作（破裂或脱落），泄放出压力介质。

2.2爆破片：爆破片在爆破装置中，能够因超压而迅速动作的压力敏感元件。

2.3爆破片组件：由爆破片、背压托架、加强环、保护膜等两种或两种以上

的零件组合成的组件。

3、爆破片材料

3.1常用材料：

铝（最高使用温度100。;

专艮（最高使用温度120。;

铜（最高使用温度200。;

镶Nickel200（最高使用温度400°。；

因科锲Alloy400（最高使用温度480。，

奥氏体不锈钢（最高使用温度400℃）、

镒乃尔Alloy600（最高使用温度430。;

3.2特殊材料：哈氏合金Alloy0276、4旦Tantalum

4,布置：可单独安装、可和安全阀串联使用。

1、标准:

1.1GB567-1999《爆破片与爆破片装置》

1.2GB/T12353-1999《拱形金属爆破片装置分类与安装尺寸》

1.3GB/T16181-1996《爆破片装置夹持器型式和外形尺寸》

1.4GB/T14566《正拱形金属爆破片型式与参数》

1.5GB/T14567《反拱形金属爆破片型式与参数》

1.6GB/T14568《开缝形金属爆破片型式与参数》

1.7JB4700-92《压力容器法兰》

2、计算

2.1按照“压力容器安全技术检察规程”附件五第三条计算公式:

2.1.1气体：

1）临界条件区"二-）2

PB左+1

Wo7

A>-------------------7=mm-

7.6x10-2xCKpjg

2）亚临界条件史>（二~）看

PBk+1

2

A2___________t%2一mm

55.84xKp占1K%—心）"也

PBPB*ZT

式中：％—压力容器的安全泄放量，kg/h

A-—爆破片的排放面积mm2

PB--爆破片设计爆破压力（绝压），MPa

p夕-泄放侧压力，MPa

h-绝热指数k=CNCv

气体绝热指数临界压力临界温度

H21.411.32-239.6

N21.43.394-146.9

C0507.4psia-220.4

Ar1.6674.8734-122.4℃

CH4673.1psia-115.8

C021.3337.5331

H2S9.01100.4

COS838.4psia215.6°F球星新

CH30H7950kPa513.15K

H2022.IMPa

HCN4.95MPa183.5℃氢氟酸

NH311.58132.4

-140.65〜

空气1.4023.868-3.876

-140.75

饱和蒸汽1.13522.565

过热蒸汽1.322.565

物质名称空气02N2H20NH3C02H2

临界温度-140.65—

-118.4-146.9374.15132.431-239.6

/七-140.75

临界压力3.868〜

5.0793.39422.56511.587.531.32

/MPa3.876

表2.2.21气体的比热容比cp/cv表（压力为101.325kPa）

名称分子式温度/七

01002003004005006007008009001000

氧Ar1.671.671.671.671.671.671.67

氮He1.671.671.671.671.671.671.67

氤Ne1.671.671.671.671.671.671.67

氟Kr1.671.671.671.671.671.671.67

僦Xe1.671.671.671.671.671.671.67

水银Hg1.671.671.67

蒸汽

甲烷CIh1.311.2681.2251.191.1711.1551.141

乙烷C2H61.21.1541.1241.111.0951.0851.077

丙烷c：凡1.141.1021.0831.071.0621.0571.053

丁烷CiHio1.11.0751.0611.051.0461.0431.04

戊烷C5H「21.081.061.0491.041.0371.0351.031

己烷C6H141.061.051.041.011.0311.0291.027

庚烷C7H161.051.0421.0351.031.0271.0251.023

辛烷C8H181.051.0371.031.031.0231.0221.02

氯甲CH3CI1.271.221.181.161.151.131.12

烷

三氯CHCI31.151.131.121.111.11.1

甲烷

乙酸C4H8O21.091.0691.0561.051.0431.0381.035

乙脂

氮N21.41.41.3941.391.3751.3641.355L3451.3371.3311.323

氢1.411.3981.3961.41.3941.391.3871.3811.3751.3691.361

H2

空气1.41.3971.391.381.3661.3571.3451.3371.331.3251.32

氧021.41.3851.371.351.341.3341.3211.3141.3071.3041.3

一氧co1.41.3971.3891.381.3671.3541.3441.3351.3291.3211.317

化碳

水蒸1.281.31.291.281.271.261.251.251.241.23

气

二氧1.271.2431.2231.211.1981.1911.1871.1841.1791.1771.175

so2

化硫

二氧CO21.31.261.2351.221.2051.1951.1881.181.1771.1741.171

化碳

氨NH31.311.281.261.241.221.21.191.181.171.161.15

丙酮C3H6。1.131.1031.0861.081.0671.0621.059

甲基CH3Br1.271.21.171.151.141.131.13

澳

乙一气体在操作压力下的压缩系数（可查曲线图，也可参照下表）

空气的压缩系数

压力0.10.512468101520

/MPa

温度

/K

900.9760.4580.6780.893

1000.980.8870.350.4340.6390.838

1200.9880.9370.870.6730.3370.4130.5960.772

1400.9930.9610.920.82970.58560.3310.3740.4340.5911.77

1600.9950.9750.950.89540.78020.660.570.5490.6340.756

1800.9970.9830.970.93140.86250.7980.7430.7080.7180.799

2000.9980.9890.980.95390.910.870.8370.8140.8060.854

2500.9990.9960.990.98220.96710.9550.9460.9410.9450.971

30010.99910.9950.99170.990.990.9931.0071.033

3501111.00141.00381.0081.0121.0181.0381.064

40011.00111.00461.011.0161.0231.0311.0531.08

45011.00211.00631.01331.0211.0291.0371.0611.091

50011.00211.00741.01511.0231.0321.0411.0651.091

表2.2.8一氧化碳的压缩系数

压力/atm®147104070100

温度/K

2000.99730.98930.98130.9734

2500.99890.99570.99260.98960.9632

3000.99970.99870.99770.99680.99070.98960.9935

3501.00001.00021.00031.00051.00421.01121.0216

4001.00021.00101.00171.00251.00421.01121.0216

4501.00031.00141.00251.00351.01521.02861.0433

5001.00041.00161.00291.00411.01721.03141.0469

6001.00051.00181.00321.00451.01861.03321.0485

表2.2.9二氧化碳的压缩系数

|o.10.5124F81020

00.99330.96580.92940.8496

500.99640.98050.96070.91950.83001.72640.59810.4239

1000.99770.98830.97640.95240.903485330.80220.75140.5891

1500.99850.99270.98530.97050.9416,91310.88540.85900.7651

2000.99910.99530.99080.98180.964094730.93130.91700.8649

2500.99940.99710.99430.98860.978396840.95930.95110.9253

3000.99960.99820.99670.99360.9875p.98220.97730.97330.9640

3500.99980.99910.99830.99640.9938p.99140.98960.98820.9895

4000.99990.99970.99940.99890.9982p.99790.99790.99841.0073

4501.00001.00001.00031.00051.00131.00231.00381.00561.0070

表2.2.6氢的压缩系数

压力/atm”147104070100

〃＞温度/K

500.99190.96750.94310.9186

1000.99980.99920.99870.99831.00291.02221.0560

1501.00061.00241.00411.00581.02601.05071.0796

2001.00071.00281.00481.00691.02831.05131.0760

2501.00061.00251.00441.00651.02641.04691.0682

3001.00061.00241.00421.00591.02381.04201.0607

3501.00051.00201.00361.00531.02131.03761.0541

4001.00051.00201.00341.00481.01931.03391.0486

4501.00041.00161.00301.00441.01761.03071.0439

5001.00041.00161.00281.0040

表2.2.4氧的压缩系数

压力/MPa0.10.5124681020

温度/K

750.42000.8301

800.40070.7912

900.36960.7281

1000.97570.34640.6798

1200.98550.92460.83670.31730.6418

1400.99110.95350.90340.78520.13340.19400.25270.30990.5815

1600.99390.96970.93790.86890.69910.37250.29690.33780.5766

1800.99600.97930.95790.91340.81670.76960.59540.51060.6043

2000.99700.98530.97050.93990.87680.81400.75340.69970.6720

2500.99870.99380.98700.97360.94770.92370.90300.88580.8563

3000.99940.99680.99410.98840.97710.96760.95970.95420.9560

3500.99980.99900.99790.99610.99190.98900.98700.98701.0049

4001.00001.00001.00001.00001.00031.00111.00221.00451.0305

4501.00021.00071.00151.00241.00481.00741.01061.01521.0445

5001.00021.00111.00221.00381.00751.01151.01611.02071.0523

表2.2.3氮的压缩系数

压力/MPa0.10.5124681020

温度/K

700.34000.45160.56231.1044

800.95930.31220.41400.51481.0061

900.97220.29380.38880.48260.9362

1000.97980.89100.28230.37200.46050.8840

1200.98830.93970.87320.70590.28220.36410.44380.8188

1400.99270.96350.92530.84330.63760.42510.42780.47990.7942

1600.99520.97660.95290.90420.80310.70170.63040.61340.8107

1800.99670.98460.96900.93810.87820.81250.77840.75300.8550

2000.99780.98970.97910.95920.92120.88820.86210.84550.9067

22500.99920.99600.99240.98570.97410.96550.96040.95891.0048

3000.99980.99900.99830.99710.99640.99731.00001.00521.0559

3501.00011.00071.00111.00291.00691.01251.01891.02711.0810

4001.00021.00111.00241.00571.01251.01991.02831.03771.0926

4501.00031.00181.00331.00731.01531.02381.03321.04301.0973

5001.00041.00201.00401.00811.01671.02571.03501.04511.0984

表2.2.7"＞甲烷的压缩系数

压力/MPa().I0.5124681020

"＞温度/K

1000.43130.8498

1500.98560.92430.83330.34050.6578

2000.99370.96820.93500.86290.68580.37550.32180.36570.6148

2500.99720.98410.96780.93560.86940.80350.74030.68890.6953

3000.99820.99150.98280.96630.93420.90420.87730.85480.8280

3500.99880.99540.99050.98210.96570.95130.93900.92930.9226

4000.99950.99760.99570.99080.98330.97710.