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从压缩机排出的气体/空气,除非对其进行适当的处理,时常不符合某些用途所要求的质量。在压缩空气/气体中有各种杂质,其中包括大气污染、压缩机磨屑,润滑油滴和悬浮颗粒,水蒸气和冷凝水,油/水乳液,锈和碳。用后冷却器、带制冷剂或干燥剂的干燥器和过滤器来除去杂质,是对空气/气体有效的处理方法。用冷却器和干燥器除掉水蒸气和降低空气的露点就可防止在后面的气流中有更多的水气冷凝出来,再用高效凝聚式过滤器除掉其他杂质,使其残留量达到很低的水平。确定压缩空气/气体露点的测量技术是众所周知的,但是在过滤以后很重要的残余油量的测量方法还没有得到很好的解决。已经发展了一种新的试验方法,这种方法能够降低到0.001mg/m3的残余油含量给以很精确的测量。包括在一个变化范围内收集到的运转参数数据,即温度、速度、过滤前气体含油量和这些参数对过滤器效率和过滤器系统设计的影响。
The gas / air discharged from the compressor, unless properly handled, often does not meet the required quality for some uses. There are various impurities in the compressed air / gas, including air pollution, compressor wear debris, lubricating oil droplets and suspended particles, water vapor and condensate, oil / water emulsion, rust and carbon. The use of aftercoolers, dryers and filters with refrigerant or desiccant to remove impurities is an effective air / gas treatment. Using a cooler and dryer to remove water vapor and reduce the dew point of the air can prevent the water vapor in the back of the gas condensate out, and then remove the other impurities with high efficiency coalescing filter, so that the residual amount is very Low level. Measurement techniques for determining the dew point of compressed air / gas are well known, but methods for measuring the amount of residual oil that is important after filtration have not been well addressed. A new test method has been developed that reduces the residual oil content to 0.001 mg / m3 to give a very accurate measurement. This includes data on operating parameters collected over a range of variations, ie, temperature, velocity, gas content of the gas prior to filtration and the effect of these parameters on filter efficiency and filter system design.