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国电宁夏石嘴山发电有限责任公司4台机组主油箱汽轮机油在运行中油质劣化,油的破乳化度严重超标,在试验条件下,油水不能分开,而且油的颜色变深发暗,影响机组的安全运行.针对机组汽轮机油破乳化度指标超标的问题,通过试验室一系列条件试验,制定了油处理方案,选择合理的处理工艺在现场对汽轮机油进行处理,使油质指标达到新汽轮机油国家标准的规定. 相似文献
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通过向劣化的运行油中添加GPF15S-2型破乳化剂,先在一定时间内改善并稳定该油的破乳化性能,控制其破乳化时间在运行油允许标准范围内,加过破乳剂的油经72h循环过滤,然后再使用沈阳变压器厂生产的新型滤板用铁质板框滤油机之对进行再处理,进一步除去油中劣化产物,使油的破乳化性能大大提高,处理后的油其各项指标已达到新油的标准。经3个月时间的运行跟踪,证明此种处理劣化汽轮机油的方法是可行的。 相似文献
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通过向劣化的运行油中添加GPE_(15)S—2型破乳化剂,先在一定时间内改善并稳定该油的破乳化性能,控制其破乳化时间在运行油允许标准范围内。加过破乳剂的油经72h循环过滤,然后再使用沈阳变压器厂生产的新型滤板用铁质板框滤油机对之进行再生处理,进一步除去油中劣化产物,使油的破乳化性能大大提高。处理后的其各项指标已达到新油的标准。经3个月时间的运行跟踪,证明此种处理劣化汽轮机油的方法是可行的。 相似文献
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通过对露天存放的汽轮机油取样及试验分析,得出结论是不仅在运行中汽轮机油破乳化性能变差,低温存放对其乳化性能也有很大的影响。 相似文献
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通过对露天存放的汽轮机油取样及试验分析,得出结论是不仅在运行中汽轮机油破乳化性能变差,低温存放对其乳化性能也有很大的影响. 相似文献
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运行中汽轮机油的乳化是常见的油品劣化问题,长期以来一直困扰着电厂等汽轮机油用户和润滑油生产厂家。乳化后的汽轮机油各项性能严重下降,无法承担润滑作用,对设备的运行安全带来极大的危害。主要从引起汽轮机油乳化的三个因素入手,分析了导致油品乳化的各种原因,并从运行、检修及油品选用等方面提出了相应对策。 相似文献
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A. A. Starostin V. V. Shangin V. G. Bukhman D. V. Volosnikov P. V. Skripov 《Thermal Engineering》2016,63(8):544-550
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. 相似文献
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随着热电联产机组的不断投运,供热机组电负荷的调控以及在供热期内的调峰问题受到广泛关注,供热机组在线实时监测系统的应用有助于解决此问题。以吉林松花江热电厂供热机组在线实时监测系统为例,从系统组成、软件功能等方面对在线监测系统的设计与应用进行了详细介绍和分析,并提出了设计注意事项。 相似文献
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对某电厂1台200 MW机组因汽轮机油严重乳化导致调速系统卡涩而被迫停机的事故进行了分析,根据油、水分析和破乳化试验结果,认为引起事故的主要原因是汽轮机油系统进入了较多的工业冷却水。事故导致了汽轮机油严重乳化,系统金属腐蚀加剧,对此提出了相应的防范措施。 相似文献
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针对大庆油田电力集团油田热电厂200 MW机组检修期间更换新油后出现汽轮机油快速劣化、油质酸值升高、破乳化度增加和颜色变深等问题,分析了油品快速劣化原因,阐述了在线汽轮机油再生净化装置的结构、性能特点以及采用在线再生净化装置对劣化的汽轮机油进行再生处理.实践证明,通过在线汽轮机油再生方式,不用降低机组负荷、停机,可以使汽轮机油各项指标快速达到运行油质量标准,解决了油品劣化后不停机在线净化处理难题. 相似文献
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The problem of paraffin deposits in oil wells during oil production is investigated. A thermal dew-axing method by the use
of a heating cable is considered. A mathematical model for computing the heating current and the operation time of the heating
cable is given. 相似文献
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高寒地区低温型1.5MW风力发电机组研发 总被引:1,自引:0,他引:1
介绍了高寒地区低温型1.5MW风力发电机组设计条件、特殊要求、主要技术规范。通过对低温型1.5MW风力发电机组载荷的计算分析;应选择具有优良低温性能的风机零部件材料;使用低黏温油指数的液压油、润滑油;增加独立的加热系统;采用三支撑结构布置轴系;对机组轮毂内进风口和机舱内的进风口进行了优化。最后对该型风力发电机组进行了试验及风场运行验证,总体上达到了预期的设计要求。 相似文献