流体机械
流體機械
류체궤계
FLUID MACHINERY
2014年
2期
47-49,66
,共4页
苯乙烯%通风%CFD%优化设计
苯乙烯%通風%CFD%優化設計
분을희%통풍%CFD%우화설계
styrene%ventilation%CFD%optimization design
为了改善生产车间的通风状况,降低生产过程造成的苯乙烯污染,新风及排风系统的优化设计显得尤为重要。根据车间污染源分布特点,运用计算流体动力学( CFD)的数值模拟方法,对某产生苯乙烯的车间的通风系统进行模拟,使人体工作环境达标。结果表明,采用顶部送风,顶部排风和两侧墙排风的通风方式,并不能有效降低车间内苯乙烯的浓度。采用增大通风量的方式效果也不明显,尤其是车间下部浓度超标。根据模拟结果,采用地面排风口可以提高排风效率,在另两面侧墙的2个模具之间增设排风口也可达到很好的效果。
為瞭改善生產車間的通風狀況,降低生產過程造成的苯乙烯汙染,新風及排風繫統的優化設計顯得尤為重要。根據車間汙染源分佈特點,運用計算流體動力學( CFD)的數值模擬方法,對某產生苯乙烯的車間的通風繫統進行模擬,使人體工作環境達標。結果錶明,採用頂部送風,頂部排風和兩側牆排風的通風方式,併不能有效降低車間內苯乙烯的濃度。採用增大通風量的方式效果也不明顯,尤其是車間下部濃度超標。根據模擬結果,採用地麵排風口可以提高排風效率,在另兩麵側牆的2箇模具之間增設排風口也可達到很好的效果。
위료개선생산차간적통풍상황,강저생산과정조성적분을희오염,신풍급배풍계통적우화설계현득우위중요。근거차간오염원분포특점,운용계산류체동역학( CFD)적수치모의방법,대모산생분을희적차간적통풍계통진행모의,사인체공작배경체표。결과표명,채용정부송풍,정부배풍화량측장배풍적통풍방식,병불능유효강저차간내분을희적농도。채용증대통풍량적방식효과야불명현,우기시차간하부농도초표。근거모의결과,채용지면배풍구가이제고배풍효솔,재령량면측장적2개모구지간증설배풍구야가체도흔호적효과。
To reduce styrene pollution caused by the production process and improve the ventilation , optimization design of fresh air and exhaust system is particularly important .According to pollution sources of workshop distribution characteristics , computational fluid dynamics ( CFD) was used as numerical simulation method to simulate a styrene workshop ventilation system , so that the work environment meet standards .The results show that ventilation , including upward air-supply, upward exhaust and both sides of wall exhaust , can not effectively reduce the concentration of styrene in the workshop .Effect of decreasing concentra-tion by increasing ventilation rate is not obvious , especially excessive concentration in the lower part of the workshop .According to the simulation results , two methods can be improved exhaust efficiency , that are ground exhaust and additional air vents in the side walls between the two molds .