回转式空气预热器多道密封的技术特性

介绍了空气预热器多道密封的结构及特性以及多道密封与空气预热器漏风的关系,并从设计、工艺、制造及安装等方面入手,分析了最佳密封道数的选择原理。     

常规单晶硅太阳电池在低倍聚光条件下应用研究

利用常规单晶硅光伏电池，在进行输出特性研究的基础上，设计研制出带有非对称复合抛物面聚光器的光伏发电系统。该系统利用聚光器的有效聚光比随季节的变化，使光电池上接收到的太阳辐射量全年相对均衡，结果不仅降低了发电成本而且可改善系统的可靠性。     

Growing space—age related three-dimensional modeling of biomass production of hybrid poplar

The Three Treatment Hybrid Poplar biomass experimental plantation was established at Lajta-Hansági State Farm (mosonmagyaróvár, Hungary) in 1981. The first treatment applied was fertilization by three doses of complex fertilizer and a non fertilized control. The second treatment was four European hybrid poplar clones, and the third, three narrow spacing. The design randomization was split—split-plot blocks with two exact replications. Height and Breast Height Diameter (DBH) were measured annually, and sample trees were cut. Some blocks were clear cut at age four, and height and DBH were measured in trees in remaining blocks until age nine. There were no significant differences among the treatments of fertilizers until age four. It was because of permanent water deficiency in the soil. There were significant differences among biomass production of the clones and also the spacings. Always the narrowest spacings gave the biggest amount of biomass at every clone until age four, except the “Blanc du Poitou” French clone at age four. However, spacing was not constant by time in the experiment, because the mortality (self-thinning) reduced the number of trees. As data were saved in matrixes by the situation of trees in the blocks, the actual growing space was calculated (space potentially available) of every tree at every age. The asymptotic Baule-Mitscherlich function was found to fit well on biomass data of single trees at every clone, although its asymptotic value changed in time. The Chapman-Richards function was found to be suitable for computing asymptotic values in Baule-Mitscherlich function. In this way a two independent variable three-dimensional function model, as a 3D response surface, was developed for modeling biomass production of single trees in hybrid poplar energy plantations. The single tree response surface multiplied by frequency or distribution of trees by growing space and age is a new basis for computing stand biomass production.     

基于单神经元自适应PID联合动力装置实验台的测功机控制器研究

根据PID控制结构提出一种新型的单神经元自适应PID控制器，并对其基本结构和学习算法进行了分析。结合舰船电力推进原动机多模块化组合实验台的控制要求，对实验台负荷特性模拟设备一水力测功机的常规PID控制器进行改进，满足了实验台在不同工况下实验的要求，同时也为各种组合模块的性能研究提供了可靠的试验平台。     

自由基聚合反应动力学常数测定技术

自由基聚合是一类重要的聚合反应,其反应动力学常数的获取对于聚合机理研究、聚合物链结构定制、反应过程调控都有着重要的意义。综述了自由基聚合中最重要的链增长和链终止反应速率常数的测定方法,着重介绍连续脉冲激光引发结合凝胶渗透色谱测定链增长反应速率常数、单脉冲-连续脉冲激光耦合结合近红外光谱与电子顺磁共振波谱测定链终止反应速率常数,涵盖了各方法的检测原理、要求和适用条件,讨论了增长自由基链长对链增长和链终止反应速率常数的影响。此外,对链增长和链终止反应速率常数检测方法的提升和新方法的开发进行了展望。     

双盘式浮顶储罐罐顶传热系数的计算分析

本文运用传热学基本原理,在归纳总结出双盘浮顶传热系数计算方法的基础上,结合现场数据,研究对比了单双盘浮顶传热系数范围和变化规律的不同,并分析了环境温度、风速和储罐容积对双盘浮顶罐罐顶传热系数的影响。     

过磷酸钙装置的技术改造

广东云浮硫铁矿企业集团公司化工厂利用少量资金,在4年时间里,对过磷酸钙装置进行一系列技术改造,使1套原设计为5万吨／年生产能力的过磷酸钙装置达到了20万吨／年,产品成本降低,市场竞争力加强。     

微机多功能内胎硫化过程监控仪的研制

介绍一种新型微机多功能内胎硫化过程控仪是其功能、特点、硬件结构和软件设计。该机不仅功能多,而且干扰性强,可对４０台内胎硫化机的生产全过程进行全天候质量监控,能及时发现并记录内胎硫化中的欠硫和过硫现象,实践证明该仪器对质量管理自动化非常有效。     

尿基过磷酸钙复合肥新工艺研究

讨论尿基过磷酸钙生产过程中反应剂制备的热力学原理和物化参数,讨论混合反应中工艺参数确定的基本原则.所提出的流程不但可以生产二元氮磷复合肥,也可生产不同比例的氮磷钾三元复合肥.     

准噶尔盆地南缘山前带地震采集技术及成效

新疆准噶尔盆地南缘高探1井于白垩系清水河组测试获日产原油1213 m³/d、天然气32.17×10⁴m³,创整个盆地单井日产量最高纪录,充分证实了南缘油气勘探潜力巨大[1]。为此,2019年,新疆油田在南缘共部署了875 km²三维地震采集项目,采用了井震联合采集技术、井炮源驱动技术、有线仪器+无线节点+有线连续采集技术、宽频单点接收技术、光纤表层调查技术等,高效、高质量完成了野外地震采集,地震资料品质得到了较好的提高,初步形成了适合南缘山前带的地震采集技术,为南缘山前带油气勘探和和下一步增储建产储备了相关的配套技术,该技术也可为国内其它探区山前带地震采集提供借鉴。