使用API STD 521计算油田火炬筒体高度优化分析
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摘要
API STD 521《泄压和减压系统》在油田火炬设计中有着广泛的应用,但是,在实际计算过程中,由于对相关规定的理解不同,计算出的火炬筒体高度相差很大。介绍了API STD 521《泄压和减压系统》关于火炬筒体高度的计算公式和图表,结合伊朗某油田项目,阐述了热辐射率F、热强度传导系数?及允许热辐射值K这3个重要参数的选取原则,并对F、?、K不同取值情况下火炬筒体的计算高度进行了对比分析。对采用该规范计算火炬筒体高度时F、?、K的取值提出了建议,以确保火炬筒体设计高度合理,从而达到节约投资、降低安装和操作维护难度的目的。
API STD 521(pressure-relief and decompression system) is widely applied in the design of flare stack in oilfield.In practical situation,however,there exist big differences in calculated flare stack height due to different understanding of relative regulations.By combing one Iran oilfield project,the calculation formula and schematics for flare stack height in API STD 521 are introduced;how to choose three key parameters of heat radiation rate F,heat intensity transmission coefficient ι and the allowable radiant heat intensity K is explained;the comparative analysis to the calculated flare stack height under different F,t and K has been carried out;proper values of F,τ and K for calculating the height of flare stack by adoption of the regulation is suggested to ensure the reasonable design height for flare stack so as to achieve the goal of investment savings and reduction of installation and operation difficulties.
API STD 521(pressure-relief and decompression system) is widely applied in the design of flare stack in oilfield.In practical situation,however,there exist big differences in calculated flare stack height due to different understanding of relative regulations.By combing one Iran oilfield project,the calculation formula and schematics for flare stack height in API STD 521 are introduced;how to choose three key parameters of heat radiation rate F,heat intensity transmission coefficient ι and the allowable radiant heat intensity K is explained;the comparative analysis to the calculated flare stack height under different F,t and K has been carried out;proper values of F,τ and K for calculating the height of flare stack by adoption of the regulation is suggested to ensure the reasonable design height for flare stack so as to achieve the goal of investment savings and reduction of installation and operation difficulties.
引文
[1]美国石油协会.API Standard 521泄压和减压系统[S].华盛顿:美国石油协会出版社,2007.
[2]王根峰.炼油厂火炬高度计算中若干问题的探讨[J].炼油设计,1999,29(12):45-47.
[3]中华人民共和国国家经济贸易委员会.SH 3009-2001石油化工企业燃料气系统和可燃性气体排放系统设计规范[S].北京:中国石化出版社,2002.
[2]王根峰.炼油厂火炬高度计算中若干问题的探讨[J].炼油设计,1999,29(12):45-47.
[3]中华人民共和国国家经济贸易委员会.SH 3009-2001石油化工企业燃料气系统和可燃性气体排放系统设计规范[S].北京:中国石化出版社,2002.