排序方式： 共有14条查询结果，搜索用时 171 毫秒
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运用SIMFENS视窗自动化中心（WinAC）的控制器、组网、通信和软硬件的组态技术,构造炼钢的自动化控制系统。用WinAC替换了传统的硬件PIE,可以充分使用工控机丰富的软硬件资源,极大提高系统的运行速度,节约了成本,从而增强了控制的实时性。实验结果表明系统的分布式结构可靠性好,抗干扰能力强。 相似文献
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有机热载体锅炉是以煤、油或可燃气体为燃料,导热油为热能的载体,具有低压高温的工作特性,已被广泛应用于化工、纺织、印染、轻工、食品、造纸、建材等行业。但在实际使用中也发生一些危及安全的事故,给人民生命和财产造成了一定的损失。 相似文献
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LIU Dong WANG Fei HUANG Qun-xing YAN Jian-hua CHI Yong CEN Ke-fa 《浙江大学学报(A卷英文版)》2007,8(11):1853-1857
Radiative imaging of combustion flame in furnace of power plant plays an increasingly important role in combustion diagnosis. This paper presents a new method for calculating the radiative imaging of three-dimensional (3D) combustion flame based on Monte Carlo method and optical lens imaging. Numerical simulation case was used in this study. Radiative images were calculated and images obtained can not only present the energy distribution on the charge-coupled device (CCD) camera target plane but also reflect the energy distribution condition in the simulation furnace. Finally the relationships between volume ele- ments and energy shares were also discussed. 相似文献
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玻璃熔炉烤窑过程中拉条调节方法 总被引：3，自引：0，他引：3
在玻璃熔炉烤窑过程中,以大碹受热均匀膨胀为依据,对拉条调节量、调节时间、升温曲线的制定进行了探讨。 相似文献
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通过对特钢公司一轧车间１＃加热炉炉型结构优化设计,烧咀均匀分布,耐火材料的精心选用,改变了原加热炉能耗高,加热质量差,氧化烧损严重等缺点,达到了高效,优质,节能的目的。 相似文献
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基于单片机的高温沸腾炉控制系统已经成型。现利用SPCE3200嵌入式系统促其升级,加强系统集成度,传感器数据可以无线传入。采用液晶显示器显示工艺曲线,并允许通过触摸屏手工修改曲线,增加了多媒体、通信等功能,系统更加安全可靠,具有高适应性、易扩展性,有助于生产质量的提高。 相似文献
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基于单片机的电阻炉模糊控制 总被引：1，自引：0，他引：1
本文介绍了模糊控制理论的基本原理,以单片机AT89C51为系统核心部件对电阻炉温进行控制。将模糊控制系统应用于电阻炉温的监控中,打破了传统的控制方法,使控制系统更加简洁,更容易控制,为电阻炉加热系统提供了另外一条更好的思路。 相似文献
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本文评述了电弧炉炼钢节能技术的发展，并分析了我国电弧炉炼钢节能与世界先进水平的差距。在加拿大、美国、日本节能技术扩散经验的基础上，探讨我国电弧炉节能技术扩散的规律与态势。 相似文献
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An archaeological excavation has been carried out at Pisa (Italy), unearthing an ancient metallurgical workshop. Since archaeological burnt materials provide important records of direction and intensity of the Earth's magnetic field in the past and they can be used to better improve geomagnetic secular variation curves (SVCs), an archaeomagnetic study has been performed. This small copper-alloy furnace presents a circular concave shape covered with a thin layer of mortar, with some traces of heated clay surrounding the feature that confirms the high temperature reached inside it. Archaeological context dating points to the last firing of the furnace between the last quarter of the 13th century and the first quarter of 14th century AD, when then the metallurgical workshop was transformed in a warehouse. Archaeomagnetic sampling has been performed using the modified Thellier method, by collecting several, large and independently oriented aliquots of heated clay, forming the bottom part of the circular wall of the structure. Laboratory treatments have been conducted at the IGG-CNR ARCHEO_LAB (Pisa, Italy) and at St. Maur Palaeomagnetic laboratory (Paris, France). Analytical measurements of the thermo-remanent magnetization index acquired from the samples have been performed using a large cell induction magnetometer for large samples, and the characteristic remanent magnetization (ChRM) has been successfully isolated after an alternate field demagnetization cleaning procedure for each sample. The final mean archaeomagnetic direction has been calculated at sampling site (D = 6.9°; I = 52.8°; N = 9; k = 305; α95 = 2.6°) following the Fisher Statistics, and it exhibits a perfect agreement with some coeval already published directions obtained from Mt. Arso lava flows, these latter being an important anchor point in the preliminary Italian secular variation curve. Comparison with the preliminary Italian SVC, the French SVC and the SCHA.DIF.3K archaeomagnetic regional model have permitted to define an archaeomagnetic absolute age confirming the conventional archaeological age, underlining the importance of this result into the Italian archaeomagnetic data set. 相似文献