查询词典 steam turbine

Power and mechanical engineering ; steam turbine ; rotor-bearing ; nonlinear vibration ; oil whip ; Newmark method

动力机械工程；汽轮机；转子-轴承；非线性振动；油膜振动； Newmark法

Power and mechanical engineering ; steam turbine ; rotor ; wheel ; wheel rim ; heat transfer coefficient ; calculation formula

动力机械工程；汽轮机；转子；叶轮；轮缘；传热系数；计算公式

Thermal Power Engineering;Steam Turbine;Thermal Stress;On Line Monitor;Thermal Power Plant

论文导师徐鸿，论文学位硕士，论文专业热能工程

The research subject in this thesis is the part of the research project in advance of National Defence of the Tenth Five-year Plan.The primary coverage of this thesis includes nuclear power equipment steam turbine and condenser system.

本研究是十五国防预研项目核动力装置动态仿真中的子课题，其主要内容是围绕着核动力装置汽轮机和冷凝器系统来展开的。

In view of the low ball collection rate in rubber ball cleaning system in steam turbine condenser,the causes of equipment system problems in operation are analysed and the measures to improving are given.

针对汽轮机凝汽器胶球清洗系统在运行过程中出现收球率较低的运行现状，对设备系统存在的问题进行原因分析，并提出有效的改进措施，确保凝汽器安全经济运行。

The condition of steam turbine in case of tripped and not tripped by boiler MFT were analyzed.

分析了锅炉主燃料跳闸后联跳和不联跳汽轮机工况、机组可能存在的安全问题，提出采用汽轮机低汽温保护替代锅炉MFT 联跳汽轮机保护，实现停炉不停机。

The fastening bolts of steam turbine cylinder case were in fatigue-creep interaction.

调峰机组频繁调整负荷，汽轮机汽缸紧固螺栓处于疲劳-蠕变交互作用，对紧固螺栓多轴应力下疲劳-蠕变损伤的研究对调峰机组安全运行和维修具有重要意义。

Loading of peak generator units were changed frequently. The fastening bolts of steam turbine cylinder case were in fatigue-creep interaction. It was important to study fatigue-creep interaction damage of fastening bolts under multiaxial stress.

调峰机组频繁调整负荷，汽轮机汽缸紧固螺栓处于疲劳-蠕变交互作用，对紧固螺栓多轴应力下疲劳-蠕变损伤的研究对调峰机组安全运行和维修具有重要意义。

In order to study the characteristics of steam turbine varying conditions, it is important to study when the flow state change from the critical state to subcritical.

研究机组何时由临界工况变为亚临界工况，寻求临界压力的变化规律是研究汽轮机变工况特性的重要问题之一。

This article describes examples to upgrade introduced large power steam turbine so as to further increase their reliabilities.

叙述了提高引进型大功率汽轮机可靠性的具体成果。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。