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According to actual condition, a model of wall thickness of rotary kiln is established. The constant coefficients in the model, including thermal conductivity, heat transfer coefficient, Fourier coefficient and contact resistance, are closely calculated. A formula of contact resistance is draw from a great deal of data of surface and inner temperature of rotary kiln. The wall thickness of rotary kiln is simulated by MATLAB. The simulation result is transmitted from MATLAB to DELPHI through a group of interface functions compiled by VC++. The basic graphs-circle and line are analyzed by the means of the technique of Visualization in Scientific Computing and the Bresenham arithmetic, and are realized the visualization of the wall thickness. The contents of communication between master computer and slaver computer are designed and the error control technique, the idea of multi-thread and the embedded assembly language are applied to realize the temperature data transmission and graph transmission, which largely improved the speed of transmission and the reliability and stability of system.

建立了符合现场实际的回转窑壁厚数学模型;结合现场采用红外测温仪测量所得的温度数据和回转窑的实际结构数据,确定出适合该模型的定常系数(包括导热系数、换热系数、傅立叶系数、接触热阻等),并得出与回转窑工况的相近的接触热阻公式ln=T~(0.5154)-36.7868;利用MATLAB软件仿真出回转窑壁厚,并将运算结果通过在VC++的编译环境下编译出MATLAB和DELPHI的接口函数传输到该监测系统中,实现了温度数据的转换和交换;运用科学计算可视化技术和Bresenham扫描转换算法对基本图形——圆和直线进行分析,从而实现了仿真后的壁厚数据可视化;在研究异步串行通信方式的基础上,设计了该系统上下位机功能和通信内容,并运用差错控制技术、多线程思想以及嵌入式汇编语言实现了温度数据和图形数据在上下位机之间的远程传输,提高了数据传输的速率和系统的可靠性、稳定性。

Barrel is the key part of artillery. In shot process, propellent gas of high pressure and high temperature flows in the tube at a high rate of speed, which brings an upheaval to the temperature field of the composite barrel. As to the composite barrel with metal inner, its poor thermal conductivity is more likely to cause uneven temperature distribution and bigger temperature gradient, to produce improper deformation and to make the work temperature of metal inner rise, all of which will affect the life span of barrel.

身管是火炮的关键部件,在火炮发射过程中,高温、高压的火药燃气在身管内成脉冲式高速流动,使身管受到急剧的加热,引起身管壁内的温度急剧变化,而对于带金属内衬复合材料身管,由于复合材料导热性能较差,更容易引起非均匀温度分布以及较大的温度梯度,产生不合适的变形,也会使身管的金属内衬的工作温度升高,从而使得身管的寿命降低,同时身管的发热会引起其刚度的变化,增大射弹散布。

These indexes describe the fabric's thermal properties during the heated process. The heat insulation ratio preferably manifests fabric's insulation property; the difference of calefactive ratio describes dynamic conditions average calefactive case; effective thermal conductivity and compound thermal resistance are mainly considering the wholly testing characteristics and describing the compound thermal property; the response time expresses the time of step response during dynamic testing process. 3. Dynamic heat transmitting properties of fabrics and warmth retention testing methods have been developed; many different textile materials are used for actual test, and the data are analyzed, illustrated, and compared.

这些指标从不同的侧面描述了试验过程中织物试样的传热隔热性能,其中隔热率是从整体上来考虑的指标,它较好的描述了试样的隔热保温性能;升温速率差考虑的是动态变化过程中平均升温变化情况,它的大小表现了织物热性能的差异;名义导热系数和复合热阻是从试验装置的特点出发整体来考虑的热传递指标,描述了铜板、试样、铜板三者复合时的传热性能与隔热性能;而温度动态响应时间表示动态热传递过程中趋于稳态所经历的时间。

These indexes describe the fabric"s thermal properties during the heated process. The heat insulation ratio preferably manifests fabric"s insulation property; the difference of calefactive ratio describes dynamic conditions average calefactive case; effective thermal conductivity and compound thermal resistance are mainly considering the wholly testing characteristics and describing the compound thermal property; the response time expresses the time of step response duringdynamic testing process.3. Dynamic heat transmitting properties of fabrics and warmth retention testing methods have been developed; many different textile materials are used for actual test, and the data are analyzed, illustrated, and compared.

这些指标从不同的侧面描述了试验过程中织物试样的传热隔热性能,其中隔热率是从整体上来考虑的指标,它较好的描述了试样的隔热保温性能;升温速率差考虑的是动态变化过程中平均升温变化情况,它的大小表现了织物热性能的差异;名义导热系数和复合热阻是从试验装置的特点出发整体来考虑的热传递指标,描述了铜板、试样、铜板三者复合时的传热性能与隔热性能;而温度动态响应时间表示动态热传递过程中趋于稳态所经历的时间。

In only 12 month, Tanan Shenran 150 thousand M3 per day LNG project has finished the work from the very beginning to the very end. This project has created a milestone on China gas history, it is not only the first on constructing period, but also make many first on technology: The first self-owned intellectual property LNG plant which is nitrogen expanding and recycling refrigerating in China; the first plant which are all made in China; the first plant which use the parallel connection temperature expander refrigerate technology; the first use the pressure dryness vaporizer technology on Nitrogen gas liquefaction and purity system; the first use the deep fat stove technology in purity system; the piston nitrogen compressor is the biggest in China and etc.

短短12个月内,泰安深燃日产15万立方米液化天然气工程项目完成了从立项到投产的全部建设工程,该套项目的顺利投产完成创造了中国燃气史上的一个新的里程碑,不仅在建设周期上创造了第一,在技术方面同样创造了多个第一:我国首个具有自有知识产权的氮气膨胀、循环制冷液化天然气设备,填补了国内在这一技术领域的空白,对我国名族天然气液化事业的发展产生了积极的推动作用;首次实现设备国产化达到100%;首次采用并联双温区的膨胀机制冷技术;首次将等压干燥脱水技术应用于天然气液化系统、净化系统;首次在净化系统采用了导热油炉、单炉双温区共用形式;所采用的单级双列活塞式氮气压缩机位国内最大等技术。

In only 12 month, Tanan Shenran 150 thousand M3 per dayLNG project has finished the work from the very beginning to the very end. This project has created a milestone on China gas history, it is not only the first on constructing period, but also make many first on technology: The first self-owned intellectual property LNG plant which is nitrogen expanding and recycling refrigerating in China; the first plant which are all made in China; the first plant which use the parallel connection temperature expander refrigerate technology; the first use the pressure dryness vaporizer technology on Nitrogen gas liquefaction and purity system; the first use the deep fat stove technology in purity system; the piston nitrogen compressor is the biggest in China and etc.

短短12个月内,泰安深燃日产15万立方米液化天然气工程项目完成了从立项到投产的全部建设工程,该套项目的顺利投产完成创造了中国燃气史上的一个新的里程碑,不仅在建设周期上创造了第一,在技术方面同样创造了多个第一:我国首个具有自有知识产权的氮气膨胀、循环制冷液化天然气设备,填补了国内在这一技术领域的空白,对我国名族天然气液化事业的发展产生了积极的推动作用;首次实现设备国产化达到100%;首次采用并联双温区的膨胀机制冷技术;首次将等压干燥脱水技术应用于天然气液化系统、净化系统;首次在净化系统采用了导热油炉、单炉双温区共用形式;所采用的单级双列活塞式氮气压缩机位国内最大等技术。

In the paper, we investigate, respectively, the unsteady transport properties of heat and moisture in enclosure under constant wall heat flux and constant wall temperature when porous particles are small and Darcy number is lower, the effect of conductivity ratio, heating conditions and other parameters on the heat transfer rate of enclosure when particles are larger and Darcy number are higher.

并分别对多孔颗粒较小时的低Da数封闭腔内的非饱和渗流与传热,及颗粒较大的高Da数封闭腔内的非饱和自然对流行为进行了数值模拟,研究了低Da数时湿分与热量在恒热流与恒壁温条件下的非稳态传递特性,高Da数时封闭腔的传热与流动特性、达西效应以及导热比、加热条件等对空腔传热系数的影响。

Synthesized all above, the heat and mass transfer of charge bed is discussed in detail. After choosing seriously the former study results in this field, a whole temperature range process model for firing iron ore pellets containing solid fuel is established as well as its software is edited. The main physical chemistry reaction process within pellets and the heat statement can be calculated exactly with the process as long as the physical and chemical parameters of raw material are obtained through basic experiments. After finding out the reason of"temperature hysteresis"and"heat inertia"of the experimental induration device, a new kind of experimental induration device is designed. The"temperature hysteresis"of hot gas flow in the new device is avoided.

综合以上对焙烧球团矿时球团矿内各种物理化学反应过程的分析与研究的结果,仔细地分析研究了球团矿料层中的传热质现象,认真筛选了前人对填充床的传热传质的研究结果,提出了全温度范围球团矿焙烧过程模型,并编制了相应的计算机软件,只要通过基础实验,获得原燃料的基本物性参数(如化学反应速度常数,矿粉、煤粉的粒度及此表面积以及球团矿的导热性等),利用这一软件就能准确地计算出焙烧球团矿时球团矿内各种物理化学反应过程和料层内的热工状态。

In the paper the main topics are:(1) to analyze the chemistry composition, the X-ray diffraction, the DTA, and the functions of all raw materials;(2) to define the best direction for producing glass and foam glass, and the best burning technical process;(3) to characterize the unit weight and thermal conductivity of foam glass;(4) to analyze the reason of bubbling up, including the influence factor of temperature, time and so on;(5) to discuss the reasons of leading to shortcomings.There is high content quartz (SiO2) in the two gangues from gold mine and potassium feldspar mine respectively. They can be used to prepare glass, because the quartz (SiO2) is the main raw material.

论文的主要内容包括:1、对矿山尾矿的湿化学分析,粒度、X射线衍射和热稳定性的分析,以及硼砂、碳酸钙及制备泡沫玻璃的玻璃粉、磷酸钠实验原料在实验中的作用进行分析;2、确定尾矿烧结成玻璃体和利用玻璃体烧结泡沫玻璃的最佳配方以及两次烧结的最佳烧成工艺条件;3、泡沫玻璃制品的体积密度和导热系数等物理性能的测定;4、泡沫玻璃的发泡机理分析,包括发泡温度、发泡时间、发泡剂的用量、稳定剂的用量及其它因素对发泡作用的影响;5、讨论造成泡沫玻璃成品各种缺陷的原因及其解决方法。

The study provided 2 kinds of finish systems which were pouring and anchoring rock-wool panel respectively. In general, galvanizing steel-meshwork using machine anchor can use all kinds of Rock-wool panel made in China. The interface mortar used in Rock-wool can prevent worker's hand from hurting and improve the water-proof capability and bonding intensity of rock-wool panel. The low-heat conductivity of polystyrene foaming granule paste improved the integer and anti-crack of system. The 2 kinds of rock-wool system all can resolve the current rock-wool panel applied difficulty in outer-wall external thermal insulation.

研究提出了现浇和锚固岩棉板2种涂料饰面构造做法,其中采用机械锚固热镀锌钢网施工可充分利用国产各类型岩棉板;岩棉板的界面砂浆处理可起到防止岩棉纤维扎手、增强岩棉板的防水性能和提高岩棉板与找平层的粘结强度的作用;聚苯颗粒的低导热系数过渡层提高了系统的整体性和抗裂性。2种构造做法经试验和工程试点证明均可解决目前国内岩棉难以应用在外墙外保温系统中的技术问题,具有优异防火性能的岩棉外保温系统可应用于任何类型的建筑中,在高层建筑和防火要求高的建筑中其优势更为明显。

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随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

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关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。