重点实用技术推广项目

CJD厨房油烟净化机 CJD Kitchen Oil Smoke Purifiers　　由上海昊元净之王环保设备有限公司开发、上海市环保局推荐的 CJD厨房油烟净化机适用于餐饮及相关食品加工油烟净化。 　　主要技术内容 　　一、基本原理 　　1、工作流程： 　　2、工作原理： 　　含油气流在进风口被分流板分散进入格栅,较大油污颗粒在气流与格栅作用下分离出来,气流进入电场后,在高压电场作用下,气体被电离,油雾荷电,微小油粒带电后在电场力及气流作用下向收尘板、格栅运动,并积聚在格栅上,沿格栅板流下后,经排油通道排出。 　　二、技术关键 　　…     

饮食业油烟处理技术探讨

静电和湿法处理油烟是目前较普遍采用的油烟处理技术，对几种油烟处理设备的原理进行了简要介绍，总结了各自的工艺设计参数、使用特点及场合。     

我国住宅厨房抽油烟机的现状及发展方向

对我国现行住宅厨房抽油烟机的现状及发展方向进行了研究,认为我国现行住宅厨房抽油烟机从环境保护的角度来看还存在盲区,以静态净化技术处置厨房油烟的方式有待改进.本文提出住宅厨房抽油烟机应以风量、风压、本体阻力、噪声、油烟净化率等五个指标作为主要设计依据和产品标准,并认为离心除油式家用抽油烟净化机应是我国住宅厨房抽油烟机的发展方向.     

论饮食业油烟治理技术的发展及应用

实际应用的饮食业油烟净化设备（以下简称油烟净化设备）中，以静电式、机械过滤式、湿式，以及由上述三种技术组成的复合式产品为主。荷电湿式油烟净化器的开发应用，将具有很强的市场竞争力，未来几年，静电式技术将继续被广泛采用，机械式技术将更多地作为预处理手段与其他技术组合使用，湿法技术因兼有部分除味和去除柴油灶燃烧颗粒的功能等特点将更有针对性地应用于适当的场所。优化组合而成的经济高效的复合式技术在未来市场中将占据主导地位。     

餐饮油烟净化器流场特性研究

文章针对静电式油烟净化器,通过数值模拟方法,研究其内部流场,观察其速度场及压力场分布特性,为后续优化净化器结构做准备,同时也为设计研发出安全、高效的净化器提供参考.     

新型机械式油烟净化器及在餐饮业的应用

本文介绍了新型机械式油烟净化器的原理及特点。并和静电沉积法，传统机械式过滤法进行了比较。     

静电式油烟净化器技术探究

从静电式油烟净化器的原理,探究电极栅结构、两极间长度与宽度比及高压电源方面的技术问题。     

最佳实用技术

ＣＪＤ厨房油烟净化机ＣＪＤＰｕｒｉｆｉｅｒｏｆＣｏｏｋｉｎｇＯｉｌｙＳｍｏｋｅ由上海市供销合作总社科学技术研究所、上海交通大学研制开发、上海市环境保护局推荐的ＣＪＤ厨房油烟净化机适用于宾馆、餐厅、酒家、食堂、商住二用楼等用户的厨房油烟处理排放。其基本...     

广元市饮食业油烟污染现状及防治对策

本文介绍了饮食业油烟污染的危害和油烟净化设备的现状，分析了广元市饮食业油烟污染现状，并提出了饮食业油烟的防治对策。     

CJD油烟净化机无噪声污染

ＣＪＤ油烟净化机无噪声污染ＣＪＤＯｉｌＳｍｏｋｅＰｕｒｉｆｙｉｎｇＦａｃｉｌｉｔｙＦｒｅｅｆｒｏｍＮｏｉｓｅＰｏｌｌｕｔｉｏｎ由上海供销合作总社科研所和上海交通大学联合开发的高科技产品ＣＪＤ系列厨房油烟净化机，日前通过了国内贸易部科技质量司主持的鉴定...     

高频电源在电除尘器前电场的应用

以龙岩坑口电厂1#炉电除尘器一电场原配备的工频电源改造为高频电源为例,分析了高频电源提高电除尘器前电场除尘效率系数的机理和实效,认为高频电源将取代工频电源成为电除尘器的主流电源。     

调幅高频电源在湿式电除尘器上的应用

介绍了给湿式电除尘器提供高压的两种电源方式即调幅高频电源和恒流源的特点。以从实际应用中得到的伏安特性,分析了两种供电方式的特性和优势,为湿式电除尘器的高压电源选型提供了参考。     

电除尘器高频电源的提效节能应用

对电除尘器高频电源的基本结构、技术性能特点作了简要介绍,阐述了高频电源的提效节能原理,提供了具体应用实例作为佐证,并推荐了适合高频电源应用的场合。     

基于高频AQI数据的关中城市群空气污染规律探索

基于高频分时AQI及各污染物浓度数据,本文使用"AQI小时指数"、首要污染物等进行统计分析并建立VAR模型对关中城市群空气污染的总体情况、日内波动规律以及城市间空气污染的关联规律做了不同层次的挖掘。研究结果表明:(1)关中城市群的空气质量整体较差,春、冬季空气污染程度明显大于夏季,空气污染的"季节效应"和"集簇性"明显,且主要表现为颗粒物污染。(2)空气质量的日内波动规律在春、冬两季表现为下半天优于上半天,夏季夜间优于白天。但在不考虑四季AQI小时指数图"相位"差异的情况下,四季空气污染的日内波动呈现出明显的相似性。(3)各城市空气污染存在明显的关联规律。城市群内一个城市空气污染的恶化会加剧其他城市的空气污染,并且对其他城市空气污染的影响峰值会在24小时之内出现,且该影响会随着空间和时间尺度的增大而逐步衰减。     

Surrogate Measures for Providing High Frequency Estimates of Total Suspended Solids and Total Phosphorus Concentrations1

Spackman Jones, Amber, David K. Stevens, Jeffery S. Horsburgh, and Nancy O. Mesner, 2010. Surrogate Measures for Providing High Frequency Estimates of Total Suspended Solids and Total Phosphorus Concentrations. Journal of the American Water Resources Association (JAWRA) 1‐15. DOI: 10.1111/j.1752‐1688.2010.00505.x Abstract: Surrogate measures like turbidity, which can be observed with high frequency in situ, have potential for generating high frequency estimates of total suspended solids (TSS) and total phosphorus (TP) concentrations. In the semiarid, snowmelt‐driven, and irrigation‐regulated Little Bear River watershed of northern Utah, high frequency in situ water quality measurements were recorded in conjunction with periodic chemistry sampling. Site‐specific relationships were developed using turbidity as a surrogate for TP and TSS at two monitoring locations. Methods are presented for employing censored data and for investigating categorical explanatory variables (e.g., hydrologic conditions). Turbidity was a significant explanatory variable for TP and TSS at both sites, which differ in hydrologic and water quality characteristics. The relationship between turbidity and TP was stronger at the upper watershed site where TP is predominantly particulate. At both sites, the relationships between turbidity and TP varied between spring snowmelt and base flow conditions while the relationships between TSS and turbidity were consistent across hydrological conditions. This approach enables the calculation of high frequency time series of TP and TSS concentrations previously unavailable using traditional monitoring approaches. These methods have broad application for situations that require accurate characterization of fluxes of these constituents over a range of hydrologic conditions.     

家用电器工频电磁辐射水平分析

对电磁波的产生机理以及对人体的危害进行了分析阐述，对人们日常生活中的家用电器电磁辐射水平进行了调查测量，分析了不同家用电器的电磁辐射水平，并有针对性提出了一些科学有效的防护措施。     

Bayesian Nonstationary Frequency Analysis of Hydrological Variables1

Ouarda, T.B.M.J. and S. El‐Adlouni, 2011. Bayesian Nonstationary Frequency Analysis of Hydrological Variables. Journal of the American Water Resources Association (JAWRA) 47(3):496‐505. DOI: 10.1111/j.1752‐1688.2011.00544.x Abstract: The present paper provides a discussion of nonstationary frequency analysis models in hydrology with a focus on the Bayesian approach. The Bayesian model provides an efficient estimation framework of hydrological quantiles in the presence of nonstationarity. In nonstationary frequency analysis models, the parameters are functions of covariates, allowing for dependent parameters and trends. The use of the nonstationary Generalized Maximum Likelihood Estimation method in hydrologic frequency analysis is discussed. This model allows using prior information concerning the variables under study and considering a number of models (linear, quadratic, etc.) of the dependence of the parameters on covariates. A discussion is also provided concerning the use of the reversible jump Monte Carlo Markov Chain procedure which allows carrying out the estimation of the posterior distributions of the parameters and the selection of the Bayesian model at the same time. An application to a case study is presented to illustrate the potential of the model.     

偶极子探头的低频特性分析

宽带电磁探头是电磁兼容测量中的一个重要器件。对宽带探头进行分析需要求解矩阵方程。对于目前所用的计算电磁学全波方法,当在低频计算的时候,会遇到阻抗矩阵奇异性的问题。针对低频阻抗矩阵奇异性问题,采用奇异值分解的方法求解矩量法方程。对比广义本征值方法,计算仿真分析表明,奇异值分解方法与广义本征值方法一样,可以有效地解决低频奇异性的问题。     

Predicting Periphyton Cover Frequency Distributions across New Zealand's Rivers

Regression models of mean and mean annual maximum (MAM) cover were derived for two categories of periphyton cover (filaments and mats) using 22 years of monthly monitoring data from 78 river sites across New Zealand. Explanatory variables were derived from observations of water quality variables, hydrology, shade, bed sediment grain size, temperature, and solar radiation. The root mean square errors of these models were large (75‐95% of the mean of the estimated values). The at‐site frequency distributions of periphyton cover were approximated by the exponential distribution, which has the mean cover as its single parameter. Independent predictions of cover distributions at all sites were calculated using the mean predicted by the regression model and the theoretical exponential distribution. The probability that cover exceeds specified thresholds and estimates of MAM cover, based on the predicted distributions, had large uncertainties (~80‐100%) at the site scale. However, predictions aggregated by classes of an environmental classification accurately predicted the proportion of sites for which cover exceeded nominated criteria in the classes. The models are useful for assessing broad‐scale patterns in periphyton cover and for estimating changes in cover with changes in nutrients, hydrological regime, and light.     

电子产品共振频率检测方法研究

本文介绍了电子产品共振频率检测方法,主要有目测法、正弦扫描法、随机振动法和模态分析法,并结合工程案例对几种方法进行描述。