基于改进SSD的变压器套管红外图像油位智能识别方法

为解决现有基于红外图像识别变压器套管油位存在的过于依赖温度信息、人工处理效率低下等问题,文中结合目标检测技术提出了一种基于改进单次检测器(SSD)的套管智能油位识别方法。通过引入SSD目标检测方法,检测红外图像中的套管区域,加入损失函数以改进SSD算法从而提高套管检测准确率,并进一步通过简单线性迭代聚类(SLIC)的应用实现了不依赖红外图像温度信息的油位检测。对比文中提出的基于红外图像的油位识别算法检测结果与人工油位检测结果,表明文中提出的算法不仅在效率上领先于传统的温度检测方式,且其误差较小,仅为0.08%。对比结果验证了所提算法在保证检测精度的情况下可大幅度提高检测效率,有效提升套管故障诊断效率和智能化水平。     

磷化工艺在油管接箍上的应用

磷化工艺取代镀锌工艺在油管接箍上的成功应用，大大提高了油管的产品质量，并且解决了接箍的防腐蚀问题。     

油井缓蚀剂研究与应用

油井缓蚀剂研究与应用崔忠兴(中原油田设计院,濮阳457001)1.前言中原油田已进入高含水期,油井系统腐蚀严重,直接影响了油田的正常生产l’].为了解决油井系统腐蚀问题,在中科院腐蚀所的专种“基础f,联合开发研制了!MC—SDeZS油井缓蚀剂.该剂以合成炔氧甲基胺和炔氧甲基季法盐衍生物,以这两种衍生物为主体成分复配辅助成分而成的水溶油分散吸附成股型缓蚀剂l’1.通过室内高温高压模拟评价试验.ZI口油井加药试验及测试表明l‘],平?...     

世界各国油页岩的组成及综合利用

描述了美国、约旦、巴基斯坦、摩洛哥、中国油页岩的组成情况，了解到这5个国家油页岩的主要理化性质。介绍了世界各国油页岩的综合利用情况。研究表明，油页岩作为重要的补充资源，应对其进行合理开发和利用。     

无油迷宫式压缩机在含尘气体中的应用与改进

针对迷宫式压缩机在含尘气体中使用所出现的使用周期短等问题 ,在压缩机进口增设水洗塔、丝网除沫器 ,并对压缩机气阀、气缸盖等相关部件进行改进 ,取得了较好的效果     

Conversion of used vegetable oils to liquid fuels and chemicals over HZSM-5, sulfated zirconia and hybrid catalysts

Thailand’s food manufacturing uses about 47 Million liters per year of vegetable oil. Used vegetable oil is classified as waste, but has potential for conversion into liquid fuel. This research studied the catalytic conversion of used vegetable oil to liquid fuel, where investigation was performed in a batch microreactor over a temperature range of 380–430 °C, initial pressure of hydrogen gas over 10–20 bars, and reaction time of 45–90 minutes. Catalysts such as HZSM-5, Sulfated Zirconia and hybrid of HZSM-5 with Sulfated Zirconia were used to determine the conversion and yield of gasoline fraction. The major products obtained were liquid products, hydrocarbon gases and small amounts of solids. Liquid products were analyzed by simulated distillation gas chromatograph and the product distribution was obtained. Hybrid catalyst HZSM-5 with Sulfated Zirconia showed the highest yield of gasoline with a 26.57 wt% at a temperature of 430 °C, initial hydrogen pressure at 10 bars, and reaction time of 90 minutes in the ratio of hybrid HZSM-5 with Sulfated Zirconia at 0.3: 0.7.     

油水相对渗透率曲线在特高含水油藏中的应用

运用相对渗透率曲线计算了纵向砂体的剩余油饱和度分布,结果表明,当油田综合含水率为98%时,水驱剩余油饱和度为40.13%,可动油饱和度为13.41%,油层存在非均质性,在剩余油饱和度相对高的部位仍有一定潜力;濮南沙二上2 3油藏平均油水相对渗透率曲线具有较好的代表性,可以在特高含水油藏中应用。     

Frying Performance of No-<Emphasis Type="Italic">trans</Emphasis>, Low-Linolenic Acid Soybean Oils

Two extruded-expelled physically refined soybean oils with reduced contents of linolenic acid, ultra-low- linolenic acid (ULL, 1.5%) and low-linolenic acid (LL, 2.6%), and a extruded-expelled physically refined control oil (control, 5.3% linolenic acid) were evaluated by frying French fries in a commercial-like setting for 6 h day⁻¹ during 23 days. The oils became darker, increased in yellow color at the beginning, and became redder and less green throughout the process. Free fatty acids levels were not different among the oils until day 14, after which, ULL was different from the control for the remainder of frying. The conjugated dienoic acid values were greatest in the control. Generally, ULL and LL oils had lower percentages of polar compounds than did the control, providing a frying life 2 days longer than the control and ~30% increase in frying time. A trained sensory panel evaluated the French fries on days 2, 5, and 6. Buttery and potato flavors decreased, and rancid and painty flavors increased over frying time for all products. Rancid flavor was highest in the fries from the control oil. Overall, the ULL and LL oils performed better than did the control oil and ULL tended to perform better than the LL.     

试论小氮肥造气工序设备的更新换代

论述小型氮肥厂近年来在煤造气工序中主要设备的更新换代问题;介绍许多优良的新设备和新技术的应用情况。     

Development of refinery scheduling system using mixed integer programming and expert system

This paper presents a hybrid refinery scheduling system combining mathematical programming model and expert system. Mixed-integer linear programming models for crude oil movement between units are merged into the expert system that is for qualitative issues concerning crude vessel unloading operations. The target problem ranging from the crude unloading to the crude charging to distillation towers is decomposed into several module problems for efficiency. Compared with existing scheduling approaches for oil movement, the proposed hybrid refinery scheduling system is very effective in dealing with timing decisions involving vessel unloading operations due to the advantages of an expert system. Since the proposed scheduling system can generate solutions so fast, it is expected to play a key role in the real processes. This paper is dedicated to Professor Wha Young Lee on the occasion of his retirement from Seoul National University.