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首页> 外文期刊>Thermal engineering >Development of a Self-Contained Device for Rapid Detection of Volatile Impurities in the Oil System of a Turbine
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Development of a Self-Contained Device for Rapid Detection of Volatile Impurities in the Oil System of a Turbine

机译：快速检测涡轮机油系统中挥发性杂质的自包含设备的开发

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摘要

The research is devoted to development of a self-contained device for rapid detection of volatile impurities in the oil system of a turbine and testing it using the operating equipment. The device consists of a remote sensor, whose sensitive element is a 3-5-mm long wire probe 20 microns in diameter, and a measurement unit that comprises a microcontroller with a set of peripherals. The design of the device enables automation of the measurement procedure with a minimum number of preset settings and real-time output of information to the operator console. The software of the device provides two-stage pulse heating of the wire probe and a resistance temperature detector. The two-stage mode proves to be the most sensitive to appearance in the system of moisture, including its trace amounts. The characteristic time of the heating is of the order of 10 ms. The measurement procedure is based on a method that consists in automatic search for spontaneous boiling-up temperature of the oil accompanied by a characteristic response signal. The results were interpreted by formal correlation of the measured values with an array of calibration data obtained in similar experiments with well-defined oil samples. An experimental method for application of the device has been developed that takes into account technological factors, such as comparatively high values of the flow rate and the temperature of the oil in locations of the oil drain from bearings, the variability of these values, and the variety of noise types that accompany the operation of the thermal power equipment that complicate the online measurements. Tests of the device were carried out in locations of oil drain from supporting bearings. The test results have demonstrated the possibility of applying the device directly in the oil system of a turbine and provided a practical basis for development of a system of multipoint control of the technological scheme in real time.
机译：该研究致力于开发一种独立设备，用于快速检测涡轮机机油系统中的挥发性杂质并使用操作设备对其进行测试。该设备包括一个远程传感器和一个测量单元，该传感器的敏感元件是直径为20微米的3-5-mm长的线探针，该测量单元包括带有一组外围设备的微控制器。该设备的设计可通过最少数量的预设设置实现自动化的测量过程，并将信息实时输出到操作员控制台。该设备的软件提供了电线探针和电阻温度检测器的两阶段脉冲加热。事实证明，两阶段模式对水分系统（包括痕量）的外观最敏感。加热的特征时间约为10 ms。测量程序基于一种方法，该方法包括自动搜索油的自发沸腾温度以及特征响应信号。通过将测量值与在定义明确的油样的类似实验中获得的一系列校准数据进行形式相关来解释结果。已开发出一种使用该设备的实验方法，该方法考虑了技术因素，例如从轴承排油口位置的油的流速和温度的相对较高值，这些值的可变性以及火电设备运行过程中伴随的各种噪声类型使在线测量变得复杂。在支撑轴承排油的位置进行了该设备的测试。测试结果证明了将该装置直接应用于涡轮机油系统的可能性，并为实时开发该技术方案的多点控制系统提供了实用基础。

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  • 来源
    《Thermal engineering》 |2016年第8期|544-550|共7页
  • 作者

    A. A. Starostin; V. V. Shangin; V. G. Bukhman; D. V. Volosnikov; P. V. Skripov;

  • 作者单位

    Institute of Thermal Physics, Ural Branch, Russian Academy of Sciences, ul. Amudsena 107a, Ekaterinburg, 620016 Russia,Ural Federal University, ul. Mira 19, Ekaterinburg, 620002 Russia;

    Institute of Thermal Physics, Ural Branch, Russian Academy of Sciences, ul. Amudsena 107a, Ekaterinburg, 620016 Russia;

    Sredneural'skaya GRES, ul. Lenina 2, Sredneural'sk, Sverdlovsk oblast, 624070 Russia;

    Institute of Thermal Physics, Ural Branch, Russian Academy of Sciences, ul. Amudsena 107a, Ekaterinburg, 620016 Russia;

    Institute of Thermal Physics, Ural Branch, Russian Academy of Sciences, ul. Amudsena 107a, Ekaterinburg, 620016 Russia,Ural Institute of State Fire Service of the Emergency Control Ministry of Russia, ul. Mira 22, Ekaterinburg, 620062 Russia;

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  • 正文语种 eng
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  • 关键词

    turbine oil; volatile impurities; wire probe; pulse heating;

    机译：汽轮机油;挥发性杂质;线探针脉冲加热;

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