查询词典 steam turbine

And some knowledge of grid topology is also introduced. The nucleation of condensative steam in the whole flowing field has been displayed. Furthermore, the characteristic of two-phase complex flow is analyzed. In the stationary blade's passage, the flowing status is stable relatively. The steam expanding is comparatively relaxing and the nucleation area of steam is small. In the moving blade's passage, the expanding of steam is tempestuous relatively because of dual-velocity effect; the degree of condensation of steam is considerably distinct.

最后，对有凝结的蒸汽在三维叶栅中的流动进行了模拟，得到了蒸汽凝结流动在整个流道内的流动情况，分析了这种两相复杂流动的特点，在静叶内，流动状态基本稳定，蒸汽膨胀较为缓和，发生凝结的区域很小；在动叶内，由于双重速度的作用使得蒸汽膨胀较为剧烈，相对蒸汽凝结程度比较大。

The so-called own steam consumption of steam traps, generally refers to steam leak, the steam trap is the action necessary steam amount and the sum of heat loss.

所谓蒸汽疏水阀自身的蒸汽消耗量，一般是指蒸汽泄漏而言，是蒸汽疏水阀动作需要的蒸汽量和散热损失量之和。

The previous literatures indicate the inversion temperature exists under superheated steam drying with an atmospheric pressure, when the temperature of superheated steam is higher than the point of inversion temperature, the drying rate of superheated steam is faster than that of air drying, but if the temperature of superheated steam is lower than the point of inversion temperature, the drying rate of superheated steam is slower than that of air drying.

已有的研究表明，在过热蒸汽干燥时存在一个温度点，称为&逆转温度&，当过热蒸汽的温度高于&逆转温度&的温度时，过热蒸汽干燥速率比空气要快，低于逆转温度时则正好相反。由于木材浮压干燥的工业化应用是在负压区实现的，因此对真空状态下过热蒸汽干燥是否也存在&逆转温度&问题的研究非常重要。

The main works are listed as follows:1 Thermal Computi ng model of steam pipe network were built with good match to actual operating dataThe thermal calculation model of steam pipe network was established according to the steam pipe network heat transfer characteristics and the thermal equilibrium principle,. It includes steam temperature drop expression, the expression of per unit length heat loss when steam pipe laying in different ways and total heat transfer coefficient expression.

该模型由管内蒸汽温降方程、不同敷设方式蒸汽管道的单位长度散热损失方程、总传热系数方程等组成，利用散热损失计算公式对钢套钢蒸汽保温管道不同敷设方式、不同管径的散热损失等总传热系数的影响因素进行了分析，计算结果表明三方程联合求解提高了新建蒸汽管网热力计算的准确度，可用于新建蒸汽管网的热力计算。

How to decrease the overspeed while the steam turbine suddenly lose full load is one of the important problems to design the control system of the steam turbine.

如何降低甩负荷时汽轮机组的动态超速始终是汽轮机控制系统设计的重要任务之一。

This paper introduced rough sets data mining method to take potential diagnosis rule from the fault diagnosis decision-making table of steam turbine unit. These rules can offer effective fault diagnosis service for steam turbine unit.

将汽轮机组故障历史数据进行模糊化及离散化处理，构建故障诊断决策表，以决策表作为主要工具，即"知识库"，采用模糊粗糙集数据挖掘方法直接从决策表中提取出潜在的诊断规则，为汽轮机组提供有效的故障诊断。

ABSTRACT Online monitoring and fault diagnosis of steam turbine is an important subject in the field of steam turbine.

汽轮机在线监测与故障诊断技术是汽轮机行业中十分重要的研究课题和领域，本文在研究国内外文献基础上，并从为企业开展的汽轮机故障预防与经济运行。。。

In this thesis the development of Noncontact Monitoring Technologies on steam turbine blade are compared and analyzed by the numbers, the theoretical measuring formula of bending vibrant blade is ratiocinated, and the Principle of Modal Analyzing on steam turbine blades are also summarized.

中文摘要：本文系统地比较分析了汽轮机叶片故障监测技术的发展与现状，并对汽轮机叶片弯曲振动的理论测量公式做了简要推导，就模态综合法在叶片振动分析中的应用进行了阐述。

The RDF can also be converted into synthesis gas for combustion in a gas turbine or combusted in a waste heat boiler to generate steam for use in a steam turbine.

RDF 也可以转化为合成气体，用于在燃气涡轮机和废热锅炉中燃烧以生成用于蒸汽涡轮机的蒸汽。

Therefore, in this thesis, a new derived nonlinear dynamic mathematical model of a double extraction steam turbine is used for the certification of the feasibility of the linear one which is widely used, in steam turbine plants.

本文从工程应用的角度出发，较为全面地讨论了抽汽式汽轮机的动态性能和控制问题，同时对单元抽汽供热机组的协调控制系统设计进行了深入的理论研究。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？