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K-65-12.8 Condensing Steam Turbine

机译：K-65-12.8冷凝式蒸汽轮机

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摘要

A new condensing steam turbine K-65-12.8 is considered, which is the continuation of the development of the steam turbine family of 50-70 MW and the fresh steam pressure of 12.8 MPa, such as two-cylinder T-50-12.8 and T-60/65-12.8 turbines. The turbine was developed using the modular design. The design and the main distinctive features of the turbine are described, such as a single two-housing cylinder with the steam flow loop; the extraction from the blading section for the regeneration, the inner needs, and heating; and the unification of some assemblies of serial turbines with shorter time of manufacture. The turbine uses the throttling steam distribution; steam from a boiler is supplied to a turbine through a separate valve block consisting of a central shut-off valve and two side control valves. The blading section of a turbine consists of 23 stages: the left flow contains ten stages installed in the inner housing and the right flow contains 13 stages with diaphragm placed in holders installed in the outer housing. The disks of the first 16 stages are forged together with a rotor, and the disks of the rest stages are mounted. Before the two last stages, the uncontrolled steam extraction is performed for the heating of a plant with the heat output of 38-75 GJ/h. Also, a turbine has five regenerative extraction points for feed water heating and the additional steam extraction to a collector for the inner needs with the consumption of up to 10 t/h. The feasibility parameters of a turbine plant are given. The main solutions for the heat flow diagram and the layout of a turbine plant are presented. The main principles and features of the microprocessor electro hydraulic control and protection system are formulated.
机译：考虑使用新的冷凝式蒸汽涡轮机K-65-12.8，这是50-70 MW蒸汽涡轮机系列和12.8 MPa的新鲜蒸汽压力（例如两缸T-50-12.8和T-60 / 65-12.8涡轮机。该涡轮机是使用模块化设计开发的。描述了涡轮机的设计和主要特点，例如带有蒸汽流动回路的单个两室气缸；从叶片部分提取以进行再生，内部需求和加热；并缩短了串联涡轮机的某些组件的制造时间。涡轮使用节流蒸汽分配；来自锅炉的蒸汽通过一个单独的阀块供应到涡轮机，该阀块包括一个中央截止阀和两个侧控制阀。涡轮的叶片部分由23个级组成：左流包含十个级，安装在内壳中，右流包含13个级，隔膜放置在安装在外壳中的支架中。前16个阶段的圆盘与转子一起锻造，其余阶段的圆盘被安装。在最后两个阶段之前，进行不受控的蒸汽提取以加热发热量为38-75 GJ / h的设备。另外，涡轮机具有五个用于给水加热的再生抽气点，以及用于内部需求的额外蒸汽抽气到集热器，消耗量高达10吨/小时。给出了汽轮机厂的可行性参数。介绍了热流图和涡轮机布置的主要解决方案。阐述了微处理器电子液压控制和保护系统的主要原理和特点。

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  • 来源
    《Thermal engineering》 |2016年第11期|771-776|共6页
  • 作者

    A. E. Valamin; A. Yu. Kultyshev; A. A. Goldberg; Yu. A. Sakhnin; V. N. Bilan; M. Yu. Stepanov; E. N. Polyaeva; M. V. Shekhter; T. L. Shibaev;

  • 作者单位

    ZAO Ural Turbine Works, ul. Frontovykh Brigad 18, Yekaterinburg, 620017 Russia;

    ZAO Ural Turbine Works, ul. Frontovykh Brigad 18, Yekaterinburg, 620017 Russia,Ural Federal University, ul. Mira 19, Yekaterinburg, 620002 Russia;

    ZAO Ural Turbine Works, ul. Frontovykh Brigad 18, Yekaterinburg, 620017 Russia;

    ZAO Ural Turbine Works, ul. Frontovykh Brigad 18, Yekaterinburg, 620017 Russia;

    ZAO Ural Turbine Works, ul. Frontovykh Brigad 18, Yekaterinburg, 620017 Russia;

    ZAO Ural Turbine Works, ul. Frontovykh Brigad 18, Yekaterinburg, 620017 Russia,Ural Federal University, ul. Mira 19, Yekaterinburg, 620002 Russia;

    ZAO Ural Turbine Works, ul. Frontovykh Brigad 18, Yekaterinburg, 620017 Russia;

    ZAO Ural Turbine Works, ul. Frontovykh Brigad 18, Yekaterinburg, 620017 Russia;

    ZAO Ural Turbine Works, ul. Frontovykh Brigad 18, Yekaterinburg, 620017 Russia;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    steam turbine; valve block; two-housing cylinder; steam flow loop; unification; modular design;

    机译：汽轮机;阀块;两壳体圆筒;蒸汽流量回路;统一模块化设计;

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