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桥梁是公路的重要组成部分,桥梁施工技术与养护的好坏直接影响到公路交通行车的安全和畅通。文章对桥梁工程施工技术要点与维护措施进行了分析与探讨。 相似文献
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介绍了某厂1 000 MW机组汽泵、电泵最小流量阀结构及其投运以来的应用情况,分析了汽泵、电泵最小流量阀损坏原因,并进行了处理,消除了最小流量阀损坏的隐患,保证了机组的安全稳定运行。 相似文献
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首先对摩托车燃油系统的渗透原理和标准法规要求进行了简单介绍,然后从加工工艺方面提出一些降低燃油系统渗透的建议. 相似文献
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针对华电邹县发电厂1000MW超超临界机组锅炉在试生产期间出现的炉膛结焦、排渣量大、渣中含原煤颗粒等问题,从锅炉设备的结构、设计、安装、以及运行维护等方面,分析了造成以上问题的原因,根据治理和改造经验.提出了预防措施和建议。 相似文献
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The sensitivity engineering model of the coupling capacitance detector is built to provide the theoretic foundation for designing its circuits and electrodes scientifically. The sensitivity concept model of the capacitance proximity detector is discussed, and the detecting sensitivity of the coupling capacitance detector is analyzed theoretically. Then the sensitivity engineering model, which can reflect the main parameters relationship of the detecting circuit is set up based on the foregoing analyses. It is concluded that: ① the sensitivity is mainly correlative with some parameters including the voltage transmission factor of the demodulator, the oscillating voltage amplitude and the amplitude variation constant of the oscillator; ② the sensitivity is also influenced by the areas of electrodes and the distance between electrodes of the detector. 相似文献