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当前位置: 首页 > 文章 > 生物质固定燃烧源烟气稀释采样装置设计与试验 农业机械学报 2016,47 (3) 174-178+394
Position: Home > Articles > Design and Experiment of Flue Gas Dilution Sampler for Biomass Fixed Combustion Source Transactions of the Chinese Society for Agricultural Machinery 2016,47 (3) 174-178+394

生物质固定燃烧源烟气稀释采样装置设计与试验

作  者：
姚宗路;吴同杰;赵立欣;丛宏斌;戴辰;郭占斌
单  位：
黑龙江八一农垦大学工程学院;农业部规划设计研究院农业部农业废弃物能源化利用重点实验室
关键词：
生物质;固定燃烧源;稀释采样装置;大气颗粒物
摘  要：
针对现有的稀释通道多级采样装置存在稀释比小、停留时间短和便携性能差等问题,根据生物质成型燃料燃烧排放高温烟气中的大气颗粒物数量和质量分布特点,采用二级稀释、反馈调节和射流的原理,设计了生物质固定燃烧源烟气稀释采样装置。该装置由采样枪、一级稀释系统、二级稀释系统、洁净空气发生系统、撞击采样装置等部分组成。装置加工完成后,采用木质成型燃料开展颗粒物采样试验,试验结果表明,该装置能够模拟固定燃烧源排放烟气进入大气环境中的稀释冷凝过程,稀释比达30,停留时间90 s,试验采集得到8种不同粒径级别的大气颗粒物,其中粒径在0.4~1.1μm之间颗粒物占总采集颗粒物的55.5%~68.1%。研究发现采样装置对空气动力学直径在1.1μm以下的大气颗粒物有较好的采样效果。
译  名：
Design and Experiment of Flue Gas Dilution Sampler for Biomass Fixed Combustion Source
作  者：
Yao Zonglu;Wu Tongjie;Zhao Lixin;Cong Hongbin;Dai Chen;Guo Zhanbin;Key Laboratory of Energy Resource Utilization from Agricultural Residues,Chinese Academy of Agricultural Engineering;College of Engineering,Heilongjiang Bayi Agricultural University;
关键词：
biomass;;fixed combustion source;;dilute sampler;;atmospheric particulate matter
摘  要：
Aiming at solving the shortcomings of low dilution ratio,short residence time and bad portability of the existing dilution channel sampler,the flue gas dilution sampler for biomass fixed combustion source was developed by using the principle of multistage dilution and jet,according to numbers of atmospheric particulates and characteristics of mass distribution in high temperature flue gas.The sampler consists of five parts: sampling gun,first level dilution system,second level dilution system,clean air making system,impact sampling device and display control system. The proposed sampler has good air-tightness,high dilution ratio,stable heat preservation performance and good control precision.The biomass fixed combustion source of flue gas dilution sampler was applied on the wood molding testing. Test results show that the proposed device could simulate the dilution and condensation process of combustion source flue gas which emissions into the atmosphere environment with dilution ratio of 30 and residence time of 90 s. The atmospheric particulates in eight different particle sizes were obtained,in which the mass of particle size of 0. 4 ~ 1. 1 μm took 55. 5% ~ 68. 1% of the total mass of atmospheric particulates. The study found that the proposed sampler has a good effect on the atmospheric particulates with diameter less than 1. 1 μm.

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