气体污染物过滤器阻力预测方法及验证
摘要：基于理论推导和相关实验，给出了平板型和W型褶型碳布式化学过滤器的阻力预测公式。研究显示：克重为600～1 000 g/m2的夹碳布的阻力为20～300 Pa,随着滤速的增加，夹碳布的阻力增大，阻力与滤速呈线性关系；阻力系数受含碳量、碳布材料和克重、制作工艺等多因素的影响，克重为600～1 000 g/m2的夹碳布的阻力系数为350～700 Pa·s/m;相同滤速下，活性炭+树脂类夹碳布的阻力系数小于相同克重的活性炭类夹碳布；平板型过滤器的阻力理论值与实测值的误差在10%以内，而W型过滤器的阻力主要由滤料的阻力引起。
关键词：气体污染物化学过滤器夹碳布阻力阻力系数滤速
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参考文献[1] FÉLICIE T,AURÉLIE J,LAURENCE L.Numerical and experimental investigations of the influence of the pleat geometry on the pressure drop and velocity field of a pleated fibrous filter[J].Separation and purification technology,2017,182:69- 77.
[2] LILLO-RÓDENAS M A,CARRATALÁ-ABRIL J,CAZORLA-AMORÓS D,et al.Usefulness of chemically activated anthracite for the abatement of VOC at low concentrations[J].Fuel processing technology,2002,77(2):331- 336.
[3] PIERRE M,MARIE-HELENE M,JEAN-NOEL F.Measurement and modeling of single- and multi-component adsorption equilibria of VOC on high-silica zeolites[J].Environmental science and technology,2003,37(11):2410- 2414.
[4] 蔡杰.空气过滤ABC[M].北京：中国建筑工业出版社，2002:143- 144.
[5] 常良，魏庆芃，江亿.美国、日本和中国香港典型公共建筑空调系统能耗差异及原因分析[J].暖通空调，2010,40(8):25- 28.
[6] 职远，刘俊杰，裴晶晶.大型客机与工业洁净厂房化学过滤器性能指标实验对比[J].暖通空调，2020,50(4):91- 96.
[7] RICHARD O,ISAAC A E,KOFI A,et al.Energy efficiency and cost saving opportunities in public and commercial buildings in developing countries:the case of air-conditioners in Ghana[J].Journal of cleaner production,2019,230:937- 944.
[8] 李立，张利群.洁净室净化空调系统的节能浅探[J].洁净与空调技术，2014(3):46- 47,49.
[9] 牟璇，刘俊杰，李圆圆.空调过滤器的性能研究及能耗评估体系[C]//全国暖通空调制冷2010年学术年会论文集，2010:61- 62.
[10] ISO.Air filters for general ventilation—part 1:technical specifications,requirements and classification system based upon particulate matter efficiency (ePM):ISO 16890:2018[S].Geneva:ISO,2018:12- 13.
[11] JAYOTPAUL C,ALEXANDER B,KONRAD B,et al.Pressure drop in fibrous filters[J].European journal of mechanics B—fluids,2019,76:115- 121.
[12] THOMAS C,THOMAS S.The influence of pleat geometry on the pressure drop in deep-pleated cassette filters[J].Filtration and separation,2002,39(9):48- 52.
[13] THOMAS D,CONTAL P,RENAUDIN V,et al.Modelling pressure drop in hepa filters during dynamic filtration[J].Journal of aerosol science,1999,30(2):235- 246.
[14] 刘惠.计算玻璃纤维高效空气过滤器阻力的实验方程式[J].通风除尘，1982(1):22- 27.
[15] 马树连，赵旭东，宋丽亚，等.高效过滤器阻力分析及减阻措施[C]//全国暖通空调制冷1994年学术年会资料集，1994:152- 156.
[16] 许钟麟.空气洁净技术原理[M].上海：同济大学出版社，1998:184.
[17] LÜCKE T,FISSAN H.The prediction of filtration performance of high efficiency gas filter elements[J].Chemical engineering science,1996,51(8):1199- 1208.
[18] THOMAS D,PACAULT S,CHARVET A,et al.Composite fibrous filters for nano-aerosol filtration:pressure drop and efficiency model[J].Separation and purification technology,2019,215:557- 564.
[19] ERGUN S.Fluid flow through packed columns[J].Chemical engineering progress,1952,48(2):89- 94.
[20] 冯朝阳.高效空气过滤器阻力与结构关系的实验研究[D].北京：清华大学，2007:1- 61.
[21] 胡晓微，刘梦宇，于腾，等.楔形通道初效空气过滤器阻力理论及实验研究[J].制冷技术，2017,45(6):55- 60.
[2] LILLO-RÓDENAS M A,CARRATALÁ-ABRIL J,CAZORLA-AMORÓS D,et al.Usefulness of chemically activated anthracite for the abatement of VOC at low concentrations[J].Fuel processing technology,2002,77(2):331- 336.
[3] PIERRE M,MARIE-HELENE M,JEAN-NOEL F.Measurement and modeling of single- and multi-component adsorption equilibria of VOC on high-silica zeolites[J].Environmental science and technology,2003,37(11):2410- 2414.
[4] 蔡杰.空气过滤ABC[M].北京：中国建筑工业出版社，2002:143- 144.
[5] 常良，魏庆芃，江亿.美国、日本和中国香港典型公共建筑空调系统能耗差异及原因分析[J].暖通空调，2010,40(8):25- 28.
[6] 职远，刘俊杰，裴晶晶.大型客机与工业洁净厂房化学过滤器性能指标实验对比[J].暖通空调，2020,50(4):91- 96.
[7] RICHARD O,ISAAC A E,KOFI A,et al.Energy efficiency and cost saving opportunities in public and commercial buildings in developing countries:the case of air-conditioners in Ghana[J].Journal of cleaner production,2019,230:937- 944.
[8] 李立，张利群.洁净室净化空调系统的节能浅探[J].洁净与空调技术，2014(3):46- 47,49.
[9] 牟璇，刘俊杰，李圆圆.空调过滤器的性能研究及能耗评估体系[C]//全国暖通空调制冷2010年学术年会论文集，2010:61- 62.
[10] ISO.Air filters for general ventilation—part 1:technical specifications,requirements and classification system based upon particulate matter efficiency (ePM):ISO 16890:2018[S].Geneva:ISO,2018:12- 13.
[11] JAYOTPAUL C,ALEXANDER B,KONRAD B,et al.Pressure drop in fibrous filters[J].European journal of mechanics B—fluids,2019,76:115- 121.
[12] THOMAS C,THOMAS S.The influence of pleat geometry on the pressure drop in deep-pleated cassette filters[J].Filtration and separation,2002,39(9):48- 52.
[13] THOMAS D,CONTAL P,RENAUDIN V,et al.Modelling pressure drop in hepa filters during dynamic filtration[J].Journal of aerosol science,1999,30(2):235- 246.
[14] 刘惠.计算玻璃纤维高效空气过滤器阻力的实验方程式[J].通风除尘，1982(1):22- 27.
[15] 马树连，赵旭东，宋丽亚，等.高效过滤器阻力分析及减阻措施[C]//全国暖通空调制冷1994年学术年会资料集，1994:152- 156.
[16] 许钟麟.空气洁净技术原理[M].上海：同济大学出版社，1998:184.
[17] LÜCKE T,FISSAN H.The prediction of filtration performance of high efficiency gas filter elements[J].Chemical engineering science,1996,51(8):1199- 1208.
[18] THOMAS D,PACAULT S,CHARVET A,et al.Composite fibrous filters for nano-aerosol filtration:pressure drop and efficiency model[J].Separation and purification technology,2019,215:557- 564.
[19] ERGUN S.Fluid flow through packed columns[J].Chemical engineering progress,1952,48(2):89- 94.
[20] 冯朝阳.高效空气过滤器阻力与结构关系的实验研究[D].北京：清华大学，2007:1- 61.
[21] 胡晓微，刘梦宇，于腾，等.楔形通道初效空气过滤器阻力理论及实验研究[J].制冷技术，2017,45(6):55- 60.
Prediction method and verification of resistance of gas pollutant filters
Abstract: Based on the theoretical derivation and related experiments, the resistance prediction formulas of the plate and W-shaped close-pleated carbon cloth chemical filters are given. The results show that the resistance of carbon cloth with a gram weight of 600-1 000 g/m2 is 20-300 Pa, with the increase of filtration rate, the resistance of carbon cloth increases, and there is a linear relationship between resistance and filtration rate. The resistance coefficient is affected by carbon content, carbon cloth material, gram weight, production technology and other factors, and the resistance coefficient of carbon cloth with 600-1 000 g/m2 is 350-700 Pa·s/m. At the same filtration rate, the resistance coefficient of the carbon cloth consisting of activated carbon and resin is less than that of the carbon cloth consisting of activated carbon with the same gram weight. The error between the theoretical value of the plate filter resistance and the measured value is less than 10%, and the resistance of the W-shaped filter is mainly caused by the resistance of the filter material.
Keywords: gas pollutant; chemical filter; carbon cloth; resistance; resistance coefficient; filtration rate;
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