试油测试燃烧器噪声场的计算  

Calculation of noise field of the welltesting burner

作　　者：彭贤强 刘玲莉[2] 

机构地区：[1]中国石油长城钻探工程有限公司测试公司,北京100101 [2]中国石油勘探开发研究院亚太研究所,北京100083

出　　处：《环境工程学报》2016年第10期6077-6080,共4页Chinese Journal of Environmental Engineering

基　　金：长城钻探工程有限公司局级科研课题(2013B09)

摘　　要：在试油测试期间,燃烧器喷射和燃烧产生的噪声会对人员和坏境造成较大的危害,故有必要对燃烧过程中噪声预测展开研究,其结果对于评估平台燃烧噪声危害、优化作业设计及进一步采取降噪措施有重要意义。结合测试燃烧器实际情况提出相应声学计算模式。基于经典燃烧噪声理论及流体动力学噪声的Lighthill理论,通过相似准则的量纲分析方法推导出喷射及燃烧噪声计算公式,并通过声波叠加原理得到声源噪声。同时考虑指向性、扩散衰减、空气吸收、水喷淋消音等减噪因素建立测试燃烧器的噪声计算模型。结合测试燃烧器高压喷射的湍流及多相流特点开展CFD数值模拟计算,数值模拟计算噪声声压级结果与噪音模型计算结果吻合较好。通过该噪声模型计算结果与现场实测数据及某西方公司软件计算结果比较,表明该计算模型可以较好的应用于测试燃烧器噪声预测。The jet and combustion noise generated by the burners during the well testing period could be detrimental to the wellbeing of the operational personnel,as well as the environment. It is therefore necessary to study the prediction of noise in the combustion process,as the results have significance for evaluating the noise hazards,optimizing the design,and adopting further noise-reduction measures. One acoustic calculation mode was presented,relevant to the practical situation of the burner. Based on the classical theory of combustion noise and the Lighthill aerodynamic theory,the formula for calculating the jet and combustion noise was deduced by dimensional analysis of the similitude criterion. Subsequently,the resource noise was indicated by considering sound superposition. Furthermore,a calculation mode for the burner noise was established by considering factors such as the background noise,orientation,diffusion attenuation,absorbance of air,and the water spray. CFD numerical simulation was carried out,taking into account the character of turbulence and the multiphase flow formed by the high pressure jetting of the burner. The result of calculating the sound pressure level by numerical simulation agreed well with that calculated by the noise mode. Comparing the results found by a foreign software application,the onsite monitored noise data,and the calculation results of the analytical mode showed that the analytical calculation mode was preferable for predicting the noise of the well testing burner.

关 键 词：测试燃烧器 喷注噪声 燃烧噪声 水喷淋 数值模拟 

分 类 号：X593[环境科学与工程—环境工程]