本文建立一套主动顶空采样系统并测定汽轮机油挥发性有机化合物（VOCs）的释放特征参数，为舰船舱室汽轮机油挥发污染物控制提供参考。利用低速率采样泵、顶空瓶等搭建主动顶空采样系统，使用低速率采样泵对顶空气体进行采样并采用GC/MS检测方法定量分析，得到汽轮机油挥发组分和释放特征参数，将汽轮机油置于水浴装置中加热研究温度对挥发的影响。研究发现，室温（约20℃）下1.8 mL/min为该主动顶空采样系统的最佳采样速率。汽轮机油在工作温度（50℃）下的挥发关键参数${y_0}$约为5587.6 μg/m3，挥发物质中浓度最高的是甲苯，占比约13.9%。在13、24、35、50℃下汽轮机油挥发的TVOC浓度分别为2173.9、2730.1、4060.3、5587.6 μg/m3，在13℃～50℃区间内，温度上升1℃，TVOC浓度上升约95.4 μg/m3。
An active headspace sampling system was established to measure the release characteristic parameters of volatile organic compounds (VOCs) in turbine oil, providing reference for control of turbine oil volatile pollutants in vessel cabin environment. The active headspace sampling system was set up with a low-rate sampling pump and headspace bottle. The low-rate sampling pump was used to sample the headspace and GC/MS was used for quantitative analysis to obtain the volatile components and release characteristics of the turbine oil. The influence of temperature on volatilization was studied by heating the turbine oil in a water bath. The optimal sampling rate for the active headspace sampling system was 1.8 mL/min at room temperature (about 20℃). The key parameter of turbine oil volatilization at operating temperature, source emission concentration${y_0}$was about 5587.6 μg/m3, and the highest concentration of volatile substances was toluene, accounting for about 13.9%. At 13, 24, 35 and 50℃, the TVOC concentration of turbine oil volatilization was 2173.9, 2730.1, 4060.3 and 5587.6 μg/m3, respectively. Through linear fitting, the temperature rises by 1℃ in the range of 13℃ to 50℃, the TVOC concentration increased by about 95.4 μg/m3.
2025,47(12): 86-92 收稿日期：2024-8-25
DOI：10.3404/j.issn.1672-7649.2025.12.016
分类号：U664.86
基金项目：国家部委基金资助项目（52178068）
作者简介：田蕾(1982-),女,硕士,高级实验师,研究方向为军事环境毒理
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