共查询到16条相似文献,搜索用时 15 毫秒
1.
E. V. Chernyshev S. N. Kochurov V. A. Il’in V. V. Ermakov 《Power Technology and Engineering (formerly Hydrotechnical Construction)》2007,41(4):219-222
Results of investigations of the dependence of the percentage of voids on the shear force of a layer of ash, on the basis
of which the design principle of the subassembly for the feed of ash to a transport pipeline is developed, are examined for
optimization of ash flows in a pulsed regime. The schematic of a system of pulsed pneumatic transport of ash from the bins
of ash collectors, and results of measurements during experimental operation of the system, as well as relationships for the
calculation of its dynamic parameters are presented. Conclusions concerning the high reliability of the removal and pneumatic
transport of ash over a distance of more than 80 m with minimal air consumption are drawn on the basis of results of the experimental
operation.
__________
Translated from élektricheskie Stantsii, No. 6, June 2007, pp. 17–20. 相似文献
2.
研究了国内外电厂干式除灰技术和粉煤灰综合利用的现状,结合华电能源牡丹江第二发电厂的实际,对#7炉电除尘器气力输灰方案进行了探讨,对粉煤灰综合利用及经济效益进行了分析,指出了气力输灰系统应注意的一些问题。 相似文献
3.
以周口隆达发电公司浓相气力输灰系统为例,针对出现输灰系统的耗气量降低的问题提出了气力输灰系统的改进和优化方法,分析了在运行过程中发生堵管的原因并提出预防措施及处理方法; 相似文献
4.
5.
V. V. Ermakov B. M. Kuntulov S. V. Shabal' 《Power Technology and Engineering (formerly Hydrotechnical Construction)》2003,37(1):37-40
An automated system for controlling the operation of shaking elements of electrodes (aeroridges) is suggested, which cleans the electrodes of the electric filter synchronously with the system of pneumatic removal of ash. Relationships for calculating the design parameters of the system depending on the modes of pneumatic transportation and dependences of the parameters of the fluidized layer of the removed ash on the structural variants of aeroridges are presented. 相似文献
6.
Carl F. Cerco Martin T. Schultz Mark R. Noel Brian Skahill Sung-Chan Kim 《Journal of Great Lakes research》2018,44(4):813-823
Detection of environmental DNA (eDNA) is widely employed to infer the presence of endangered or invasive species in the aquatic environment. Detection of eDNA, however, does not guarantee the presence of the species in question. The location, time, and nature of the eDNA source are unknown. An eDNA fate and transport model can help to address these unknowns. Construction of such a model requires resolution of multiple issues including: 1) Quantification of eDNA concentration in the environment; 2) Quantification of the eDNA source; 3) Quantification of decay rate; and, 4) Model application and validation. We address these issues and present the results of a fate and transport model for eDNA originating from an invasive species, silver carp (Hypophthalmicthys molitrix), in the Chicago Area Waterways System, USA. Results indicate the presence of roughly 4600?kg of silver carp, distributed along the major axes of the system, is required to produce the eDNA detected in routine monitoring. Positive detection of eDNA in a sample suggests a source within days and km of the sample time and location. 相似文献
7.
电力设备维护管理系统的开发与应用 总被引:2,自引:0,他引:2
设备的维护检修可分为应急维修、预防性维修和状态维修3种工作方式。为了实现电力设备维修的科学管理,作者结合现场实际情况,深入探讨了企业设备管理的工作流程,并在此项目研究了开发了计算机的电力设备维护管理系统。 相似文献
8.
基于格点数字高程模型生成流域水沙运移路径图的研究 总被引:10,自引:0,他引:10
本文在分析测试前人关自动生成流域水沙运移路径图象算法和软件的基础上,发现这些件要么对格点数字高程模型进行滤波以消除孤立的、较浅的洼地,要么进行填洼消除的洼地,要么进行填洼消除所有的洼地,这两种方法都会改变原始地形的高程。 相似文献
9.
10.
城市污水脱氮除磷SBR在线控制系统研究 总被引:10,自引:0,他引:10
SBR采用进水—厌氧—好氧—缺氧—好氧—沉淀—出水的运行方式处理城市污水。反应器装备有DO、ORP和pH等在线检测传感器。DO、ORP和pH变化的一些特征点可以用来判断和控制SBR中污水脱氮除磷过程的各个步骤。这包括:厌氧时,ORP和pH的转折点对应磷的释放;一次好氧时,DO、ORP的氨肘和pH的氨谷对应硝化结束;缺氧时,ORP的硝酸盐膝和pH的硝酸盐峰对应反硝化结束;二次好氧时,DO、ORP碳肘对应剩余碳的氧化结束,pH的转折点对应聚磷结束。控制系统能进行全自动运行来完成污水的脱氮除磷。 相似文献
11.
通过对贯流式、轴流式两种机型调速系统稳定性的计算分析,得出轴流式机组调速系统的稳定域比贯流式机组大,且动态性能优。为此,推荐左江电站采用24MW轴流式机组。 相似文献
12.
病险水库除险加固信息管理是一项复杂性工程,不仅需要涵盖病险水库的病害特点与加固技术,还需实现其规范化、科学化和网络化。通过总结“十一五”课题经验,研究了病险水库除险加固信息管理系统的结构框架、信息组成和关键实现技术。整个系统由“省级信息采集模块”、“中心信息管理模块”、“信息服务模块”3个模块组成。针对土坝、堆石坝、重力坝、拱坝各自的结构特点,详细列举了所需的加固统计信息。所提出的信息结构可供设计数据库时参考。 相似文献
13.
以引大灌区为对象研究了渠塘供水模式下灌区信息管理系统的设计。该设计以充分利用渠塘联控调水模式、最大限度提高灌区水资源的利用率为目标,由监测子系统提供塘群、渠系水情等实时信息,基于B/S结构的信息管理系统将完成动态配水、GIS查询等功能,实现对塘水、渠水的信息化管理和调度,突出渠塘供水模式的特色,充分发挥塘的二次调蓄功能。 相似文献
14.
15.
赵懿珺 《水利水电科技进展》2012,32(1):74-77
概述火(核)电厂温排水热污染防控体系中的3个重要环节:①基于水质生态等要求制定的温排放控制标准;②满足热环境容量评估要求的数值预报模型;③余热高效利用技术。以某核电厂工程为例,对热污染防控的总体思路进行简要分析。认为火(核)电厂温排水热污染防控体系的建立可为电厂的统筹规划、温排放监管以及环境影响评价提供技术支撑。 相似文献