水雾水膜式厨房油烟净化装置

针对第三产业油烟扰民的实际情况，开发出集排烟、净化于一体的湿法去除厨房油烟的装置，此法的关键在于喷嘴在较低的泵压下形成的伞状水膜和在其下部形成的雾化效果极佳的水雾．运行结果表明，此法净化效率较高、性能稳定、维护操作方便，价格适宜．     

Indonesian peat and vegetation fire emissions: Study on factors influencing large-scale smoke haze pollution using a regional atmospheric chemistry model

Numerical modelling of fire-related smoke haze episodes in Southeast Asia is important for both prediction and assessment of atmospheric impacts, especially when observational data are fragmentary, as is the case in Indonesia. This work describes the atmospheric fate of smoke particles emitted during the 1997 Indonesian fires modelled with a regional atmospheric chemistry model. We established a new fire emission inventory and calculate that 55 teragram (Tg) of particulate matter and 1098 Tg of carbon were released during this fire episode. Our emission estimate is an intermediate value compared with other studies. Utilising different scenarios, we demonstrate the variable atmospheric impacts of surface vegetation fires and peat soil fires separately and also investigate the sensitivity of smoke dispersion to the differing meteorological conditions of an El Niño and a normal year. When peat fires are included in the emission inventory, modelled ambient particle concentrations exceed the ambient air quality standard across transboundary scales. In a scenario including only surface vegetation fires, ambient air quality standards are exceeded only in areas close to the main fires. This scenario demonstrates the prominent role of fires in peat areas in causing regional air pollution episodes. In years with normal meteorological conditions, intermittent precipitation and associated wet deposition during the dry season are predicted to remove most of the particulate emissions close to the sources. Strongly reduced rainfall and generally stronger southeasterly winds during El Niño years provide favourable conditions for larger scale smoke haze pollution.     

新型燃煤烟气净化装置的脱硫性能研究

通过实验 ,考察了新型燃煤烟气净化装置的性能。采用喷钙水浴烟气净化工艺 ,在钙硫比为 1.4～ 1.6时 ,其综合脱硫效率可达 85～ 90 % ,阻力损失为 4 5 0～ 5 2 0 Pa;不加脱硫剂的水浴平均脱硫率为 5 5 % ;当喷钙倾角由向上 30°变为向下 30°时 ,喷钙脱硫效率相应由 16 .5 %增加到 38.4 %。     

沥青混凝土干燥搅拌窑黑烟及粉尘污染防治措施研究

通过增设燃烧室、改进燃油喷嘴形式、烟气除尘方式 ,改变了燃烧状况 ,彻底解决了不完全燃烧现象 ,解决了冒黑烟及粉尘超标的问题     

沈阳市实施清洁能源行动的目标和任务

文章基于数据分析 ,对燃煤造成的煤烟型污染 ,从采取煤炭管制行动、节能降污对策、烟气净化措施、原煤替代方案、拆小建大集中供暖五个方面 ,确定了具体的目标和任务     

高层建筑防烟楼梯间正压值与门洞风速试验及分析

对一座 32层综合性高层建筑的楼梯间与前室的机械加压送风系统进行现场试验 ,测定了几种不同工况下楼梯间、前室的正压值、门洞风速、送风机风量、加压送风口风速、系统的阻力损失等参数。笔者着重分析了正压值和门洞风速的试验结果 ,试验暴露了加压送风系统设计、验收、防排烟产品质量等存在许多问题 ,亟待解决。同时也发现了《高规》条文中存在某些不完善之处。试验表明 ,高层建筑防烟楼梯间及前室的加压送风系统如果设计不当 ,火灾时 ,不仅不能起到保证人员安全逃生的作用 ,甚至可能成为严重的安全隐患     

Smoke Plume Trajectory Modeling

A combination of numerical modeling and large-scale experimentation has yielded a tremendous amount of information about the structure, trajectory and composition of smoke plumes from large crude oil fires. A numerical model, a large outdoor fire plume trajectory (ALOFT), has been developed at NIST to predict the downwind concentration of smoke and other combustion products. The model is based on the fundamental conservation equations that govern the introduction of hot gases and particulate matter from a large fire into the atmosphere. The model has been used to estimate distances from fires under of variety of meteorological and topographic conditions where ground level concentrations of smoke and combustion products fall below regulatory threshold levels.     

陕西省环境库兹涅茨曲线分析与预测

根据陕西省1989~2008年统计年鉴中工业总产值和工业三废、工业二氧化硫以及烟尘排放量的数据,建立陕西省环境库兹涅茨曲线,并对其变化原因进行了分析。结果表明,陕西省工业固废与工业废水总体上符合传统的倒"U"型曲线,但经过转折点后下降趋势不是很明显;而工业废气和工业二氧化硫呈现直线式上升,烟尘排放量最符合典型的"倒U"曲线。文章最后对经济和环境的相关指标进行了预测并提出了一些建议。     

烟尘样品分析的实验室质量控制

通过对烟尘样品的试验与比较,提出了烟尘样品的实验室质量控制要求和方法。     

羟基锡酸锌阻燃聚氯乙烯电缆材料及其潜在火灾危险性评价

采用氧指数、成炭率、烟密度、垂直燃烧(UL 94)、热重分析、环境扫描电镜和锥形量热的方法测试了羟基锡酸锌(ZHS)对PVC的阻燃抑烟作用。ZHS用量为15%时即可以满足对PVC电缆材料燃烧烟密度的要求,燃烧等级可以达到UL94 V0级。PVC/ZHS电缆材料的热稳定性能、成炭性能和燃烧性能表明,ZHS在PVC电缆材料燃烧时,可以促进PVC交联成炭,生成的炭具有较好的隔氧、隔热及抑制可燃性气体逸出的作用,提高了PVC电缆材料的热稳定性能,有效降低了PVC电缆材料的潜在火灾危险性。