海面水包油乳化液溢油量等效估算方法研究

Equivalent estimation method of oil in water emulsion oil spill on sea surface

激光诱导荧光(LIF)是一种主动光学探测技术,该技术已在海面未乳化溢油油种鉴别及油膜厚度评估方面取得了一定的研究成果,但乳化溢油的监测理论基础和探测方法尚未成熟。溢油乳化物的量化会直接影响溢油污染的应急处理和灾害评估,但目前对溢油乳化液溢油量的计算尚未有研究报道。本文以水包油乳化液为研究对象,基于等效思想,根据油量相等建立了水包油乳化液与油膜的荧光检测等效模型,并依据光的辐射传输机理推导出等效油膜厚度的估算公式,最后采用仿真实例对估算方法的适用性和有效性进行了验证。实验结果表明,当水包油乳化液含油率小于12×10^(-6),厚度小于5.98 cm时,利用所提出的等效方法能有效计算出水包油实际溢油厚度。该方法可为海面乳化溢油量的估算提供一种创新性的方法,具有良好的借鉴意义和实际应用价值。

Laser-induced fluorescence(LIF)technology is an active optical detection technology.At present,the technology has been studied in the identification of non-emulsified oil spills and the evaluation of oil film thickness.However,a sound theoretical basis and a more sophisticated approach have not been formed for the monitoring of emulsified oil spills.The quantification of oil spill emulsion directly affects the emergency treatment and disaster assessment of oil spill pollution.But there is no study on the calculation of oil spill of oil spill emulsion.Taking oil in water emulsion as the research object,the equivalent fluorescence detection model of oil in water emulsion and oil film is established according to the equivalent thought and the equal amount of oil.The estimation formula of equivalent oil film thickness is deduced according to the radiative transmission mechanism of light.A simulation example was employed to verify the applicability and effectiveness of the estimation method.The simulation results show that the proposed equivalent method can effectively calculate the actual oil spill thickness of oil in water when the concentration of oil in water emulsion is within 12×10-6 and the thickness is within 5.98 cm.The method can provide an innovative way for the estimation of emulsified oil spill on the sea surface,which has good reference significance and application value.