研究了在稳定运行工况时影响汽轮机叶片激振力的主要因素。
Fourier harmonic analysis is applied to analyze the factors that affect steam turbine blade excitation.
模型采用机组稳定运行工况点的数据确定静态参数,利用汽轮机调门开度扰动和燃料量扰动实验确定动态参数。
The model static parameters are calculated by unit stable running operating point, and the model dynamic parameters are derived by turbine disturbance and fuel flow disturbance experiments.
对水轮机模型,测取了从直锥段进口至尾水管出口8个截面共26个测点在6个稳定运行工况下的水压力脉动数据。
In the experimental study, the pressure surge data are acquired at 26 points from the taper pipe intake to the draft tube exit distributing at 8 sections under 6 stable operating conditions.
在实验中,主要通过调整一次空气系数和引射器喷口的大小,达到稳定燃烧的运行工况。
In experiment, steady operating point of combustion can be obtained mainly by setting primary air factor and the size of spout.
脉冲燃烧器的最佳运行工况应能顺利点火并在低过剩空气系数下高强度稳定燃烧。
The optimum operation of pulse combustor means successful ignition and stable combustion with high intensity, low excess air and low co emission.
简要论述局部扇风机(轴流式通风机)产生不稳定工况的原因和变化规律,提出以分流器消除风机特性曲线驼峰区段、使其工作运行稳定的技术措施。
The technical measures are given out by which the hump zone of characteristic curve of the local fan can be eliminated using a current divider and the operaiting stability of the fan can be improved.
一种用于高速高压等极端工况下的新型双螺旋槽端面密封在实际运行过程中密封腔压力会出现波动,从而影响密封稳定性。
Seal chamber pressure of a new double spiral groove face seal working under high velocity and pressure conditions may probably be disturbed in operation, which affects the seal stability.
ANN控制方法能使发电机在负荷变化、甩负荷运行、电网故障以及发电机故障等各种工况条件下,发电机端电压保持稳定。
ANN control strategy can make the voltage of generators stable in the course of load changed, load uninstalled, electrical network fault and generator fault and so on.
通过理论推导,研究了水轮机综合特性系数对调压室稳定断面的影响,即水轮机运行中不同工况点效率的相对变化对调压室稳定断面的影响。
The effect of turbine characteristic on stable sectional area of surge tank can be expressed by the synthetic characteristic coefficient of turbine, it shows the effect of turbine efficiency.
在非设计工况下运行时,火焰的轴向位置和燃烧放热的变化也对系统稳定性产生影响。
Under off-design operating conditions, shifting of the flame's axial position and its heat release may also influence the system's stability.
在此基础上根据负荷将水轮机运行工况划分为小负荷、涡带、稳定负荷等几个区域。
On the basis of it the turbine's operation state is divided into small-duty, vortex strip, steady-duty etc according to the change in load.
分析结果表明,热气导管的设计工况完全处于稳定区内,即其在设计工况下运行时,不会产生大振幅的流致振动。
The analysis results are that the design condition of hot gas conduit falls in the stability area, in other word, running at design condition, the flow induced large amplitude vibration doesn't exist.
部分负荷工况汽轮机的调节配汽特性不仅影响机组运行的经济性,而且直接影响机组轴系的稳定性。
The characteristics of steam distribution system of a steam turbine under part-load conditions will affect not only the economy but also the rotor system stability of the unit.
实验结果分析表明,适当增大冷凝器面积既可提高机组性能,又可避免在冬季工况时冷凝压力过高,保证机组稳定可靠的运行。
The experimental results show that the purpose of avoiding the high pressure of condensation and operating stably of heat-pump can be achieved if the area of condenser has been increased properly.
混流式水轮机偏离最优工况运行有可能诱发机组的不稳定运行。
Francis turbine's operation out of the optimal mode may induce unstable operation of the generating unit.
就系统匹配对汽车空调压缩机耐久性试验台运行工况稳定性的影响进行了试验研究。
Studies the influence of system matching on the operation stability of automobile air conditioner compressors on the endurance test bed.
混流式水轮机的水力稳定性与机组运行工况密切相关。
The hydraulic stability of Francis turbines is closely related to the operating conditions.
在洪水运行工况下,浸润线大幅度升高,对贮灰库的稳定极为不利;
The phreatic line is increased enormously and dam stability is threatened in flood.
试验结果表明:无论用煤还是LPG作为辅助燃料,试验都能在设定的工况条件下稳定运行;
The results showed that the experiments were smooth whether the auxiliary fuel was coal or LPG.
并通过现场试验,找到了合理的运行工况,从而在稳定水质的前提下降低成本。
Through on-the-spot experiment, the rational working condition can be found out, and the cost reduced on the premise of stabilizing the water nature.
前言:高炉轴流风机处于不稳定工况区运行或出现“抢风”都会造成事故。
Unstable operation or tacking for the axial fan of the blast furnace can cause accidents, which can be avoided by adjusting the Angle of the leading blade.
前言:高炉轴流风机处于不稳定工况区运行或出现“抢风”都会造成事故。
Unstable operation or tacking for the axial fan of the blast furnace can cause accidents, which can be avoided by adjusting the Angle of the leading blade.
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