安全壳过滤排放系统中固体粉末气溶胶发生装置设计与性能研究
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摘要
在进行安全壳过滤排放系统对气溶胶过滤性能的测试实验时,针对现有固体粉末气溶胶发生装置不能用于高压配送系统的缺点,本文设计了一种能够应用于高压系统、黏性粉末配送的双筒多级流化循环型气溶胶发生装置,它不仅能够配送满足要求的气溶胶,还实现了高压在线连续供粉功能。经过实验验证,气溶胶配送量的相对误差在15%以内,满足研究要求。
In the aerosol removal efficiency test of filtered containment venting system, the aerosol generator is used to produce the aerosols delivered to the main pipe of the filtered containment venting system under a system pressure of 1 to 6.5 MPa. The main ingredient of the aerosols is barium sulphate or titanium dioxide, with a mass median diameter of 1 micron and a geometric standard size distribution of 1~2; the concentration of the used aerosols should be held within a range of 50~900 mg/m3. Since existing generators are usually unable to generate and disperse the cohesive powders and unable to work in such a high pressure, a new kind of aerosol generator is designed,which can not only meet the requirements for the used aerosols but also realize the function of continuously providing powders in high pressure situation. Through experiments, it is shown that the relative error of the value of aerosols generated and transmitted by the new generator is less than 15%, and it can satisfy the requirement of the research.
In the aerosol removal efficiency test of filtered containment venting system, the aerosol generator is used to produce the aerosols delivered to the main pipe of the filtered containment venting system under a system pressure of 1 to 6.5 MPa. The main ingredient of the aerosols is barium sulphate or titanium dioxide, with a mass median diameter of 1 micron and a geometric standard size distribution of 1~2; the concentration of the used aerosols should be held within a range of 50~900 mg/m3. Since existing generators are usually unable to generate and disperse the cohesive powders and unable to work in such a high pressure, a new kind of aerosol generator is designed,which can not only meet the requirements for the used aerosols but also realize the function of continuously providing powders in high pressure situation. Through experiments, it is shown that the relative error of the value of aerosols generated and transmitted by the new generator is less than 15%, and it can satisfy the requirement of the research.
引文
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[12]Eric J.Containment venting system-sand bed filter:Description,operation procedure,implementation program[C]//Specialist Meeting on Filtered Containment Venting System,CSNI Report 148.Paris:OCED Nuclear Energy Agency,1988:257-278.
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[15]周夏峰,谷海峰,李富.安全壳过滤排放系统实验用气溶胶的确定及相关参数的选取[J].核动力工程,2014(5):124-127.Zhou Xiafeng,Gu Haifeng,Li Fu.Determination of experimental aerosols for filtered containment venting system and selection of technical parameter[J].Nuclear Power Engineering,2014(5):124-127.
[16]刘龙波,刘蜀疆,刘红杰.振筛进料流化床气溶胶发生器性能的初步研究[J].过程工程学报,2004,4(增刊):876-878.Liu Longbo,Liu Shujiang,Liu Hongjie.The primary study on the performance of a fluidized-bed aerosol generator feeding by sieve shaker[J].The Chinese Journal of Process Engineering,2004,4(Suppl):876-878.
[17]刘蜀疆,刘龙波,吴艳敏,等.用滤膜压力降法研究气溶胶发生器输出浓度的稳定性[J].过程工程学,2006,(6)1:19-22.Liu Shujiang,Liu Longbo,Wu Yanmin,et al.Themeasurement of concentration stability of the fluidized bed aerosol generator by measuring the pressure drop of sampling membrane filter[J].The Chinese Journal of Process Engineering,2006,(6)1:19-22.
[2]赵鑫,叶子青,陈丽,等.CPR1000核电厂安全壳过滤排放系统的设计改进[J].核动力工程,2014(2):110-113.Zhao Xin,Ye Ziqing,Chen Li,et al.Analysis on modification of containment filtration and exhaust system of CPR1000[J].Nuclear Power Engineering,2014(2):110-113.
[3]周艳民,孙中宁,谷海峰,等.文丘里洗涤器去除气溶胶特性实验研究[C]//全国反应堆热工流体学术会议暨中核核反应堆热工水力技术重点实验室2015年度学术年会.2015.
[4]Ji Z L,Xiong Z Y.Experimental investigations on a cyclone separator performance at an extremely low particle concentration[J].Power Technology.2009,191(3):254-259.
[5]Losch N,Tiegs V,Eckardt B.Qinshan 2 NPP's containment venting system[R].Qinshan:Framatome ANP Gmb H,2003.
[6]Prenni A J,Siefert R L,Onasch T B.Design and characterization of a fluidized bed aerosol generator:A source for dry submicrometer aerosol[J].Journal of Aerosol Science,2000,32:465-481.
[7]TSI公司.TSI公司气溶胶仪器简介[C]//大气气溶胶科学技术研究进展—第八届全国气溶胶会议暨第二届海峡两岸气溶胶科技研讨会文集.南京:中国颗粒学会,2005:384-387.TSI company.Brief introduction of TSI aerosol instrument[C]//The 8th national aerosol conference and the 2thcross-strait workshop for aerosol science&technology.Nan Jing.Chinese Society of Particuology,2005:384-387.
[8]黄斌,姚强,宋蔷,等.一种固体颗粒气溶胶发生装置:200520114532.4[P].2007-03-28.Huang Bin,Yao Qiang,Song Qiang,et al.Solid particle aerosol generation system:200520114532.4[P].2007-03-28.
[9]范维林.转盘式粉末气溶胶发生装置:201010136283.4[P].2011-04-13.Fan Weilin.The system of rotating powderaerosol generation:201010136283.4[P].2011-04-13.
[10]范维林.齿带式粉末气溶胶发生装置:201120050150.5[P].2011-02-28.Fan Weilin.The system of Tooth-Belt powderaerosol generation:201120050150.5[P].2011-02-28.
[11]范维林.粉尘气溶胶发生装置:201010101408.X[P].2010-01-27.Fan Weilin.Powderaerosol generation system:201010101408.X[P].2010-01-27.
[12]Eric J.Containment venting system-sand bed filter:Description,operation procedure,implementation program[C]//Specialist Meeting on Filtered Containment Venting System,CSNI Report 148.Paris:OCED Nuclear Energy Agency,1988:257-278.
[13]Holm C G,Sydkraft A B,et al.A versatile containment venting system[C]//Specialist meeting on filtered containment venting system,CSNI Report 148.Paris:OCED Nuclear Energy Agency,1988:163-174.
[14]Dillmann H G,Pasler H.A filter concept to control airborne particulates releases due to severe reactor accidents and implementation using SS-fiber filters[R].CONF-840 860,1985,2:1417.
[15]周夏峰,谷海峰,李富.安全壳过滤排放系统实验用气溶胶的确定及相关参数的选取[J].核动力工程,2014(5):124-127.Zhou Xiafeng,Gu Haifeng,Li Fu.Determination of experimental aerosols for filtered containment venting system and selection of technical parameter[J].Nuclear Power Engineering,2014(5):124-127.
[16]刘龙波,刘蜀疆,刘红杰.振筛进料流化床气溶胶发生器性能的初步研究[J].过程工程学报,2004,4(增刊):876-878.Liu Longbo,Liu Shujiang,Liu Hongjie.The primary study on the performance of a fluidized-bed aerosol generator feeding by sieve shaker[J].The Chinese Journal of Process Engineering,2004,4(Suppl):876-878.
[17]刘蜀疆,刘龙波,吴艳敏,等.用滤膜压力降法研究气溶胶发生器输出浓度的稳定性[J].过程工程学,2006,(6)1:19-22.Liu Shujiang,Liu Longbo,Wu Yanmin,et al.Themeasurement of concentration stability of the fluidized bed aerosol generator by measuring the pressure drop of sampling membrane filter[J].The Chinese Journal of Process Engineering,2006,(6)1:19-22.