查询词典 steam turbine

It uses middle extracted steam from steam turbine to heat the feetwater of boiler to the saturate temperature under working pressure of deaerator, so as to remove dissolved oxygen and other gases. To prevent or slow boiler and steam turbine as well as pipeline from corroding, and extend them service life, to ensure the operation of the power plant under safety economic condition. The high-pressure deaeator of 235t/h is a kind of mixture-type heater, which shall match with 55 MW units, whose deaerated head adopts a kind of new-style stuffing way with rotation film.

它是利用汽轮机的中间抽汽将锅炉给水加热到除氧器工作压力下的饱和温度，以达到除去给水中的溶解氧和其它气体，防止或减缓锅炉、汽机及其管道的腐蚀，延长其使用寿命，确保电厂的安全经济运行。235t/h高压除氧器是配55MW机组的混合式加热器。

The relation between the thermodynamic effeciency of saturated steam cycle in PWR secondary system and the steam humidity at the exit of high pressure turbine and lowpressure turbine and live steam parameters of the cycle pressure ratio of HPT and LPTinlet are analysed.

本文分析了压水堆核电站二回路饱和蒸汽循环的系统热效率及汽轮机高、低压缸排汽湿度与新蒸汽初参数、汽轮机分缸压力比之间的关系。

Synchronical reducer Turbodrills associate with turbine sectiom by means of synchronical reducer Turbodrills in mid of two turbine sectioms,also ,it is made of upper turbine section, Synchronical reducer, bottom turbine section,under high fluid pressure condition.

在所有的涡轮钻具中，带减速器涡轮钻具具有中低速、大扭矩的特性，现已成为深井钻井的关键装备之一。

Mathematical Model of governing system's dynamic characteristicfor condensing turbine、 reheat turbine、 extraction turbine and power frequency turbine are introduced in this paper.

文摘：介绍了研究凝汽式汽轮机调节系统、中间再热式汽轮机调节系统、调整抽汽式汽轮机调节系统及功频电液调节系统的动态特性的数学模型。

According to the "measures" to apply for the funds industry of wind power equipment manufacturing enterprises must comply with six conditions: First, equipment with independent intellectual property rights and brands, including independent research and development, joint development or re-introduction of technology innovation, we must have complete technical documentation; Second, stand-alone wind turbine capacity of 1500 kilowatts above; are three wind turbine through the Beijing Kam value of product certification and Certification Center; four are supporting wind turbine blades, gear box, generators owned by owned or-controlled enterprises in manufacturing, to encourage the adoption of Chinese-funded or Chinese-holding enterprises manufactured converter and bearings; five are the same enterprise applications using the same technology to support different models of products, poor power 500 kW above; six wind turbine are completed in the domestic production, installation, commissioning, trouble-free operation for more than 240 hours, and through acceptance owners.

根据&措施&的风力发电设备制造企业基金行业申请必须符合6个条件：一，具有自主知识产权和品牌，包括自主研发，联合开发或重新引进设备技术创新，我们必须有完整的技术文档；第二，独立风力发电机组1500万千瓦以上；有三个，通过北京鉴认证和产品认证中心的价值，风力发电机；四是支持风力涡轮机叶片，齿轮中，所拥有或控制的生产企业所属发电机，鼓励采用中资或中控股转换器和轴承制造企业，5个是相同的企业应用程序使用相同的技术来支持不同型号的产品，功率差500千瓦以上； 6个风力发电机组是在国内生产，安装完成，调试，无故障运行超过240小时，并通过业主验收。

It's an effective measure of fast valving in improving the dynamic stabilities of power system and preventing the overspeed of steam turbines, but the fast valving technique available can satisfy the need of modern steam turbines no more. On the basis of the new type fluid logic valve, which combines the regulating systems and safety systems happily, the steam turbine EHC based on new principle is put forward, one of its outstanding characteritics is, the fast valving is operating in a closed control loop. For the implementation of control for steam generator regulation and safety systems with nonlinear mult-operating modes, a new methodology for designing a fuzzy logic controller is proposed, which is based on the combination of"error phase plane"and"variable universe of discourse". Application of a double-mode FLC with the new methodology is presented, the validity of the design methodolody is desmonstrated by test; A new methodolody is also presented to improve the design and tuning of a FLC using variable structure control theory.

本文还详细讨论了快关控制在提高电力系统暂态稳定性及超速保护中的应用，分析了现有的快关控制规律的局限性，研究出一种基于新型快关阀的汽轮机电液控制系统，其突出特点是使汽轮机闭环快关成为现实，指出这种基于新的组成原理与设计方法的汽轮机电液控制系统对不同工况下的适应能力；针对汽轮发电机组多工况、非线性的特点，提出一种把&误差相平面&方法与&可变论域&思想有机结合的双模FLC设计与调整的新方法，试验结果表明该系统具有良好的动、静态特性；为改善FLC控制规则的设计与调整，作者还介绍了一种把滑模变结构理论成功应用于模糊系统设计的新方法。

But for condensing steam turbine, the exhaust steam enthalpy and the enthalpy of regenerative extraction steam in wet steam state region can t be d...

该方法利用蒸汽等熵膨胀过程来确定等效热降，不仅避开了求解汽轮机排汽焓的难题，而且还可以分析引起热力系统经济性降低的原因和部位，从而为汽轮机热力系统经济性诊断提供了依据。通过与常规等效热降法计算结果的对比，证明了该改进方法的正确性。

The turbine comprises at least one radial or diagonal turbine stage (120) with radial or diagonal feed stream and axial exhaust flow and at least one axial turbine stage (121 - 125) with a axial feed steam and axial exhaust flow.

该涡轮机包括至少一个带有径向的或者对角线的入口和轴向的出口的径向的或者对角线的涡轮机级(120)和至少一个带有轴向的入口和轴向的出口的轴向涡轮机级(121-125)。

Started the research of gas-turbine HRSG in the 1970s, the company has developed horizontal and vertical type HRSG, and has the ability to design and fabricate 23~400MW HRSG for gas-steam combined cycle gas-turbine. Such HRSGs can be single-pressure, double-pressure, or triple-pressure, and the circulation can be natural type or forced type. By the end of May 2007, the company has sold 144 sets of gas-turbine HRSG, with the domestic market share of more than 80%.

公司从上世纪七十年代后期开始研究、开发燃气轮机余热锅炉，坚持引进消化吸收和自主开发并重，至今已开发有卧式和立式两种技术、可设计制造单套装机容量23－400MW燃气蒸汽联合循环的各类单压/双压/三压自然循环、强制循环燃气轮机余热锅炉，截止07年5月公司共销售、生产燃汽轮机余热锅炉144套，国内市场占有率达80%以上。

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。

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？