CAJ | 학술논문

研究了一种快速高精度测量气体中水雾含量的方法.当含有水雾的气体通过装有玻璃纤维的采样管时,多种过滤机制使水雾沉降到玻璃纤维表面,通过称量玻璃纤维滤筒的重量差,可计算出气体的水雾含量.分析结果表明:当玻璃纤维直径为5 μm时,其过滤层对水雾的收集效率大于99%;采用高纯度的玻璃纤维,可以减小其在烘箱中的失重.当玻璃纤维纯度为99.5%时,经7 h加热后,失重小于0.1 mg;玻璃纤维床层阻力和收集效率随液滴平均粒径增大而增加,对于平均粒径为1 μm 的水雾粒子,其收集效率大于99.5%.玻璃纤维过滤法比吸附法和光学法测量精度高,重复性和稳定性好,且测量结果不受环境和气体温度的影响.
연구료일충쾌속고정도측량기체중수무함량적방법.당함유수무적기체통과장유파리섬유적채양관시,다충과려궤제사수무침강도파리섬유표면,통과칭량파리섬유려통적중량차,가계산출기체적수무함량.분석결과표명:당파리섬유직경위5 μm시,기과려층대수무적수집효솔대우99%;채용고순도적파리섬유,가이감소기재홍상중적실중.당파리섬유순도위99.5%시,경7 h가열후,실중소우0.1 mg;파리섬유상층조력화수집효솔수액적평균립경증대이증가,대우평균립경위1 μm 적수무입자,기수집효솔대우99.5%.파리섬유과려법비흡부법화광학법측량정도고,중복성화은정성호,차측량결과불수배경화기체온도적영향.
To study a fast method on measuring mist content in gas with high accuracy Mist in gas is intercepted by the fibreglass when the gas flows through the sampling tube filled with fibreglass Mist content in gas can be calculated on condition that volume of gas flowing through the sampling pipe at unit time is measured Results of calculation and experiment show that collected efficiency should be more than 99% if fibreglass diameter is at 5 μm Purity of the fibreglass has great influence on its stability For the fibreglass with a purity of 99.5%,weight loss is 0.1 mg for seven hours in the oven The bed pressure drop and collected efficiency increase with the average droplet diameter Collection efficiency is more than 99.5% if average droplet diameter is 1 μmIt can be seen from the comparison experiment of filter method, absorption method and LDV method Fibreglass filter method has high accuracy, good repeatability and stability The measuring results are not affected by ambient and gas temperature.