【作者】 刘冰；

【导师】 涂光备；

【作者基本信息】 天津大学 ， 供热、供燃气通风与空调工程， 2006， 硕士

【摘要】 随着高科技的发展,对产品生产环境空气中的悬浮微粒的控制越来越严格,从而对空调净化系统末端的高效空气过滤器性能的要求越来越高。实验证明国内现有的检测手段已经不能满足高效、超高效空气过滤器的发展。因此有必要参考相关国际最新标准,研发一套能够准确测试高效、超高效空气过滤器效率的检测系统,解决国内高效空气过滤器质量检测手段落后的现状,为中国过滤器打入国际市场作好准备。本实验台采用计径计数法,主要借鉴欧盟EN1822标准,并参考日本和美国相关标准设计建造。通过理论分析、实验对比,遵循精度高、节约和实用的原则,成功完成了高效空气过滤器全效率检测台的研制。整套系统可以测量高效空气过滤器最易穿透粒径(MPPS)效率。自行开发的系统控制软件,功能全面,自动化程度高。通过对实验台各种性能参数的测定,证明该实验台具有很好的稳定性和复现性。本文重点介绍了实验研制过程中的设备选型,实验台制作,分析了影响检测精度的因素。通过实验测试,得到了管道内浓度分布数据及进行对比实验验证了新检测方法在精确度、可靠性等方面的优越性。该测试台的研制将提高国产高效空气过滤器在使用中的安全性和可靠性,希望能为今后我们在该领域的研究以及国家标准的制定,起到一定的参考作用。更多还原

【Abstract】 Along with the development of the modern industries, the controlling for airborne particles in the cleanroom become very strict, so the requirement for the performance and quality of high efficiency particulate air (HEPA) filter become higher and higher. Today ,in China,the present testing method of HEPA\ULPA have not been fitted to the development of HEPA\ULPA, therefore it is necessary to study a set of testing system to measure the performance of the HEPA\ULPA filter to solve the domestic lagged conditions of the testing method for HEPA \ULPA filters referring to the related international newest testing standards of HEPA filter.According to the review of many HEPA filter testing standards over the world, The testing method of HEPA\ULPA filter tends to use particle counting efficiency. Referring to the European standard (EN1822) for HEPA filter testing and other standards, ex. Japanese and American standards, a HEPA filter performance testing system is designed and built. Through the theoretical analysis and the contrast of testing experiments, the research successfully realizes the combination of integer efficiency testing according to the principle of economy and practicality. The development of the automatic scanning and controlling system makes it easy to check the filter.The thesis mainly introduce the selecting of equipment and the process of creating the testing system.By the experiment ,we acquired the concentration distributing of aerosol in duct and the advantage of the new testing method.The construction of the testing platform will be helpful to the future research in this field and the establishment of the related national standard in the future.更多还原