钢结构工程案例：惠州工业园区重型钢结构厂房施工项目

关于广东工业园区建设的思考

工业园区发展战略是近几年继集团经济发展战略之后世界经济发展的另一新趋势.兴建现代化的工业园区,能够有效地发辉园区的聚集,孵化,辅射和带动功能,有利于吸引国内外投资和人才,有利于快速地形成专业化的高新技术产业群,更有利于实现生态和经济生产.因此,普及工业园区既是市场经济和专业分工高度发展情况下工业发展的必然,也是实现工业现代化的必由之路.

基于实地调研的广东省工业VOC排放清单改进研究

工业源是人为源挥发性有机物(VOC)排放的重要贡献源,然而现有基于统计年鉴数据建立的工业VOC排放清单仍然存在排放源缺失,排放量低估,空间分配精度不足等问题.为了提高清单表征及空间分配的精细度,本文在2014年基于统计年鉴数据建立的广东省工业VOC排放清单的基础上,利用问卷调研方式获取了12000多家工业企业的详细活动水平数据,对工业VOC排放表征与空间分配进行改进,进而建立了基于实地调研和统计年鉴数据相结合的2014年广东省工业VOC排放改进清单.结果表明,改进后广东省工业VOC清单排放量由500927 t增至716470 t,珠三角地区行业VOC排放量增加30%左右,非珠三角地区增加90%左右,其中,炼油及石化行业VOC排放量变化最为明显.改进前清单借助人口密度等空间地理信息为空间分配依据,导致部分VOC排放分配到工业源较少的居民区或市中心;改进后的空间分配优先采用基于经纬度信息的点源分配方法,点源调研数据使得分配后的工业VOC主要集中在工业园区,少数工业VOC排放分配给人类活动有限的偏远农村地区,分配结果更为合理,精细.利用CAMx模型结合实际观测站点监测结果评估此次改进对O3生成的影响,总体上改进后清单提高了广州,东莞,惠州和茂名等城市的O3峰值期的模拟浓度,降低了东莞及广州O3污染时期的模拟偏差,部分被低估的模拟峰值可以提高6~9 μg·m-3;同时,空间分配的改进也影响了城市间O3传输模拟.;Industrial source was one of the largest contributors to anthropogenic VOC emissions. However, the industrial VOC emission inventory, mainly developed based on the statistical yearbook, was typically underestimated and had high uncertainty in spatial allocation. This study proposed an emission update method that combines the statistical yearbook data and field investigation or survey data to refine the estimation and spatial allocation of the industrial VOC emission inventory. The method was used to refine the 2014-based industrial VOC emissions in Guangdong Province as a case study, in which more than 12000 detailed activity data of industries was used.Results show that the updated industrial VOC emissions increased from 500927 tons to 716470 tons, increased by 30% in the Pearl River Delta region and 90% in the Non Pearl River Delta region.Oil refining and petrochemical industry VOC emissions saw the most obvious change. Surrogate data, such as population density data, was typically used for spatial allocation of industrial VOC emissions. But it might inappropriately allocate the industrial VOC emissions into the downtown or residential areas where there are few VOC industrial emission sources. Using the update method, most industrial VOC emissions were allocated to the industry zone according to the detailed location information of industry. Only few of industrial VOC emissions were allocated to urban areas and remote areas with few human activities. Obviously, the spatial allocation of industrial VOC emissions using the update method is more reasonable. Finally, the impact of updated industrial VOC emissions on O3 simulations were investigated using the CAMx model. Analysis was made from its results compared with monitoring data. It turns out that the updated industrial VOC emissions enhanced O3 simulation during peak periods particularly in Guangzhou, Dongguan, Huizhou and Maoming City, and reduced the simulation error of the peak period when ozone pollution occurs in Guangzhou and Dongguan. Underestimated O3 simulation could be increased by 6~9 μg·m-3 during the pollution peak period. Meanwhile, the optimization of spatial allocation could influence regional transport of O3.

惠州地区电网规划研究

在2009年的哥本哈根全球气候大会上,我国政府明确承诺,到2020年我国单位GDP碳排放量要比2005年降低40%~45%,中国将在绿色节能环保领域的技术研发和推广应用方面发挥积极的全球作用。国家电网公司和南方电网公司作为从事对国民经济发展有重大影响的行业旗帜公司,对上游发电行业和下游用电行业都具有引导作用。两大电网公司作为连接电力生产和消费的纽带,肩负着建设智能、高效、可靠的绿色3C电网,引导电力行业上下游企业进行节能减排责无旁贷的职责。伴随着广东省人民政府“产业转移”的指导思想,广东惠州地区在“十三五”期间将迎来新一轮的经济高速增长期,世界500强企业和高新技术企业将大量入驻惠州。在南方电网公司积极建设智能型电网的指导精神下,惠州电网在“十三五”期间打造绿色智能型低碳电网的愿望极为迫切。故本文正是基于这种背景下来研究怎么结合惠州电网的实际网架结构来打造惠州绿色智能型电网,更好的服务于惠州的国民经济。首先,本文阐述了课题的研究背景、意义及研究现状。结合惠州电网的实际网架结构、电源规划、负荷性质、特点等简要的分析了现在惠州电网存在的问题与不足。其次,结合惠州电力需求的历史数据,详尽的分析了数据的性质,并解释了数据构成的原因,分别基于电力弹性系数法和回归分析法预测“十三五”期间的惠州电网的负荷需求。再次,结合惠州电网的实际网架结构,提出了惠州地区绿色智能型低碳电网的建设方案,包括智能型主网建设、加强主网无功补偿、优化主网结构、优化惠州电网的运行方式、合理安排停电检修方式、促进变压器经济运行等,并给出了绿色惠州电网的节能效益模型研究其多种节能效益。最后,针对“十三五”期间惠州工业大幅发展的实际情况,创造性的提出面向惠州工业园区的智能微网的组网方案。并利用电力系统分析软件BPA研究其潮流运行情况。该组网方案的提出为南方电网公司类粤东地区打造新型工业园区提供了示范经验。