袋式除尘行业2015年发展综述

综述了2015年我国袋式除尘行业的发展环境,介绍了袋式除尘行业的研究动态和发展方向,指出袋式除尘制造业的发展趋势。     

袋式除尘技术的应用及发展

论述了袋式除尘技术在节能减排中的作用；介绍了我国袋式除尘技术目前的应用水平及存在的问题；提出了袋式除尘技术和产业的发展方向。     

我国袋式除尘行业2011年发展综述

综述了2011年我国袋式除尘行业的发展概况;介绍了袋式除尘行业的生产经营状况、技术进展情况以及主要企业的经营和发展情况;详细分析了袋式除尘技术在各行业的应用前景;对袋式除尘行业在发展中存在的主要问题提出了对策和建议,并对行业的发展进行了展望。     

我国袋式除尘技术的进步与发展

综述了我国袋式除尘技术的发展概况,重点分析了袋式除尘技术在水泥、钢铁、电力等行业的应用情况,详细介绍了袋式除尘器的专用纤维和滤料,以及袋式除尘器的配件等。     

我国袋式除尘设计水平的全面进步

介绍了我国袋式除尘设计在标准和规范、除尘器技术性能、设备大型化、产品系列化和新型结构等方面的进展情况;简述了计算机三维技术在袋式除尘设备设计和流体模拟试验上的应用;强调了袋式除尘设计在烟气多污染物协同净化工艺中的重要作用;我国袋式除尘设计总体上已步入国际先进水平。     

我国袋式除尘行业2010年发展综述

综述了2010年我国袋式除尘行业的发展概况;分析了袋式除尘行业的生产经营状况、技术进展情况以及主要企业的经营和发展情况,针对袋式除尘行业在发展中存在的主要问题提出了对策和建议,并对行业的发展趋势进行了展望。     

我国袋式除尘行业2009年发展综述

综述了2009年我国袋式除尘行业的发展概况;分析了袋式除尘技术在水泥、钢铁与有色冶金、电力、垃圾焚烧等行业的开发应用情况,针对袋式除尘行业在发展过程中存在的主要问题提出了对策和建议,并对行业的发展趋势进行了展望。     

我国袋式除尘行业2004年发展报告

本文概述了2004年我国袋式除尘行业的发展特征,介绍了袋式除尘新技术、新产品的开发、创新情况,并提出了存在的问题及建议。     

我国袋式除尘行业2008年发展综述

综述了2008年我国袋式除尘行业的发展概况；分析了袋式除尘技术在水泥、钢铁与有色冶金、电力、垃圾焚烧等行业的开发应用情况；针对袋式除尘行业在发展过程中存在的主要问题提出了对策建议，并对行业的发展趋势进行了展望。     

燃煤电厂PM2.5及汞控制技术探讨

火电厂烟气中PM2.5控制技术,目前可分为电除尘和袋式除尘两大类。其中电除尘又分常规电除尘、移动电极电除尘、前置聚并器电除尘、湿式电除尘、低温电除尘等;袋式除尘又分为纯袋式除尘、电-袋复合式除尘、先进的混合式电-袋除尘等。文章对这些技术从捕集机理到应用效果进行了分析探讨,推荐了火电厂应用最合适的控制技术。     

垃圾焚烧烟气中二恶英的形态及去除方法

本文对垃圾焚烧发电厂烟气中二恶英的形态、浓度分布及国内已投产并验收的企业的烟气排放数据进行了调查分析，并指出有效去除烟气中二恶英的措施有采用高效袋式除尘器和在袋式除尘器前喷加活性炭粉两种。     

脉喷袋除尘器清灰机理及技术分析

分析了脉喷袋式除尘器的工作原理和清灰机理，分析比较了离线清灰技术和在线清灰技术、高压脉喷清灰和低压脉喷清灰技术，及喷吹机构使用文丘里管对除尘器性能的影响，介绍了通过喷吹孔的不同孔径分布达到均衡清灰动能的效果。     

PRECIPITATION MEASUREMENT BIASES IN THE UNITED STATES1

ABSTRACT: Gage-induced biases in monthly precipitation are estimated and removed at 1818 stations across the continental United States from 1950 through 1987. Deleterious effects of the wind and wetting losses on the interior walls of the gage were considered. These “corrected” estimates were obtained using site-specific information including wind speed, shelter-height air temperature, gage height, and sheltering. Wind speed and air temperature were interpolated at stations for which these data were not available using a spherically-based, nearest neighbor interpolation procedure. Results indicate that, as expected, biases are greater in the winter than the summer owing to the increased problems (particularly wind-induced) of measuring snowfall. In summer, percent errors range between 4 and 6 percent over nearly three-quarters of the United States with slightly larger errors over the Rocky Mountains. By contrast, winter biases are highly correlated with snowfall totals and percentage errors increase poleward, mimicking patterns of snowfall frequency. Since these biases are not trivial, they must be accounted for in order to obtain accurate and reliable time-series. If these biases are not properly addressed, serious errors can be introduced into climate change, hydrologic modeling, and environmental impact research.     

GAGE DENSITY AND LOCATION FOR ESTIMATING MEAN ANNUAL PRECIPITATION IN MOUNTAINOUS AREAS1

ABSTRACT: Data from a network of 45 shielded precipitation gages on the Reynolds Creek Experimental Watershed in Southwestern Idaho were analyzed to determine the optimum gage density for estimating mean annual precipitation. Four subsets of the 45 gage network were used to derive a curve of mean annual precipitation versus number of gages with a confidence band at the 95 percent level. When less than 20 gages were used in the estimate, the confidence interval widens rapidly. Estimates were improved by stratifying gages on the basis of plant cover class or by elevation bands. Sixty-four percent of the variation in mean annual precipitation was accounted for by elevation and cover class. The aspect and hydrologic soil classification were not statistically significant.     

SPATIAL VARIATION OF PRECIPITATION ON THE TEXAS HIGH PLAINS1

ABSTRACT: Space autocorrelation techniques have been used to reveal the nature and spatial distribution of precipitation in the Texas High Plains. Correlation in precipitation amounts varies with both distance and direction, dropping off rapidly with distance, particularly during the warm season. The analyses can be used to estimate storm characteristics in conjunction with a wide variety of problems dealing with irrigation, crop yields, drainage and water supply, and evaluation of artificial weather modification efforts.     

HYDROLOGICAL ASPECTS OF THE 1988 DROUGHT IN ILLINOIS1

ABSTRACT: Drought is evaluated in terms of the magnitude and duration of the 1988 spring and summer precipitation shortfall, and according to various components of the hydrologic budget, both surface and sub-surface. The response time of some of these components is investigated, relative to the time of precipitation. Individual water users perceived a beginning and ending of the drought at different times relative to their activities. Some statistics better describe some components of a drought to some users, and better answer some questions, than do others.     

EFFECTS OF IMPROVED PRECIPITATION ESTIMATES ON AUTOMATED RUNOFF MAPPING: EASTERN UNITED STATES1

ABSTRACT: We evaluated maps of runoff created by means of two automated procedures. We implemented each procedure using precipitation estimates of both 5-km and 10-km resolution from PRISM (Parameter-elevation Regressions on Independent Slopes Model). Our goal was to determine if using the 5-km PRISM estimates would improve map accuracy. Visual inspection showed good general agreement among our runoff maps, as well as between our maps and one produced using a manual method. A quantitative uncertainty analysis comparing runoff interpolated from our maps with gage data that had been withheld showed slightly smaller actual and percentage interpolation errors for the 5-km PRISM-based maps. Our analyses suggest a modest region-wide improvement in runoff map accuracy with the use of PRISM-based precipitation estimates of 5-km (compared to 10-km) resolution.     

燃煤电VPM2.5及汞控制技术探讨

火电厂烟气中PM2.5控制技术,目前可分为电除尘和袋式除尘两大类。其中电除尘又分常规电除尘、移动电极电除尘、前置聚并器电除尘、湿式电除尘、低温电除尘等;袋式除尘又分为纯袋式除尘、电一袋复合式除尘、先进的混合式电一袋除尘等。文章对这些技术从捕集机理到应用效果进行了分析探讨,推荐了火电厂应用最合适的控制技术。     

2013年秦皇岛连续两次降水过程对比分析

利用常规气象观测资料、自动站资料及卫星资料,从大尺度环流背景和水汽、动力、热力条件出发,对2013年8月底东北冷涡影响下秦皇岛两次降水过程进行对比分析。结果表明：由于处在东北冷涡发展的不同阶段,中低层温度场配置不同,两次过程降水特点极不相同。8月27日降水是一次连续的区域性降水过程,以层状云降水为主,降水均匀连续,8月31日至9月2日是冷涡后部西北气流影响下的数日局地性对流降水,具有很强的突发性。