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A. Ye. Valamin A. Yu. Kultyshev V. N. Bilan A. A. Goldberg Yu. A. Sakhnin M. V. Shekhter H. C. Paneque Aguilera M. Yu. Stepanov T. L. Shibaev Ye. N. Polyaeva 《Thermal Engineering》2012,59(12):893-899
This paper describes the design of the steam turbine intended for a single-unit two-shaft combined-cycle plant and its main systems, the heat flow diagram, and turbine plant arrangement. The turbine should operate as part of the combined-cycle power plant that will be constructed on the basis of the modern PG6111FA gas turbine manufactured in the USA. 相似文献
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G. D. Barinberg A. E. Valamin A. A. Gol’dberg A. A. Ivanovskii A. Yu. Kultyshev V. B. Novoselov Kh. K. Paneke Agilera Yu. A. Sakhnin 《Thermal Engineering》2009,56(9):732-740
Turbine design, essential features of its control, economic indicators, and main solutions taken for the thermal circuit and layout of the T-113/145-12.8 turbine unit are considered. 相似文献
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G. D. Barinberg A. E. Valamin A. A. Gol’dberg A. A. Ivanovskii V. B. Novoselov V. N. Plakhtii Yu. A. Sakhnin 《Thermal Engineering》2008,55(8):642-653
The design features of the turbine unit and the basic solutions found for its thermal scheme and layout are considered. The fundamental principles for controlling the turbine are described, and its economic indicators are given. 相似文献
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A. E. Valamin A. Yu. Kultyshev A. A. Gol’dberg Yu. A. Sakhnin V. N. Bilan M. Yu. Stepanov E. N. Polyaeva M. V. Shekhter T. L. Shibaev 《Thermal Engineering》2014,61(12):849-856
The article presents the design, the economic indicators, and the main solutions on the thermal process circuit and layout of the T-125/150-12.8 turbine, a new design version of the T-100-12.8 turbine, which is one of the best known, unique and widely used cogeneration turbines in Russia and abroad. The project of the new turbine is supposed to be used both for renovating and upgrading already installed turbines of the T-100 family and for supplying it as a full set for replacing obsolete equipment or constructing new one. 相似文献
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A. E. Valamin A. Yu. Kultyshev T. L. Shibaev A. A. Gol’dberg Yu. A. Sakhnin M. Yu. Stepanov V. N. Bilan I. V. Kadkina 《Thermal Engineering》2016,63(11):765-770
The selection of a cogeneration steam turbine unit (STU) for the reconstruction of power units with a T-250/300-23.5 turbine is substantiated by the example of power unit no. 9 at the cogeneration power station no. 22 (TETs-22) of Mosenergo Company. Series T-250 steam turbines have been developed for combined heat and power generation. A total of 31 turbines were manufactured. By the end of 2015, the total operation time of prototype power units with the T-250/300-23.5 turbine exceeded 290000 hours. Considering the expiry of the service life, the decision was made that the reconstruction of the power unit at st. no. 9 of TETs-22 should be the first priority. The main issues that arose in developing this project—the customer’s requirements and the request for the reconstruction, the view on certain problems of Ural Turbine Works (UTZ) as the manufacturer of the main power unit equipment, and the opinions of other project parties—are examined. The decisions were made with account taken of the experience in operation of all Series T-250 turbines and the results of long-term discussions of pressing problems at scientific and technical councils, meetings, and negotiations. For the new power unit, the following parameters have been set: a live steam pressure of 23.5 MPa and live steam/reheat temperature of 565/565°C. Considering that the boiler equipment will be upgraded, the live steam flow is increased up to 1030 t/h. The reconstruction activities involving the replacement of the existing turbine with a new one will yield a service life of 250000 hours for turbine parts exposed to a temperature of 450°C or higher and 200000 hours for pipeline components. Hence, the decision has been made to reuse the arrangement of the existing turbine: a four-cylinder turbine unit comprising a high-pressure cylinder (HPC), two intermediate pressure cylinders (IPC-1 & 2), and a low-pressure cylinder (LPC). The flow path in the new turbine will have active blading in LPC and IPC-1. The information is also presented on the use of the existing foundations, the fact that the overall dimensions of the turbine unit compartment are not changed, the selection of the new turbine type, and the solutions adopted on the basis of this information as to LPC blading, steam admission type, issues associated with thermal displacements, etc. 相似文献
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A. E. Valamin A. Yu. Kultyshev T. L. Shibaev A. A. Gol’dberg M. Yu. Stepanov 《Thermal Engineering》2016,63(11):777-780
A T-250/300-240 turbine (currently known as T-250/300-23.5), which is operated at 31 steam turbine plants, is the largest in the world extraction turbine (by the heating extraction load) and one of the largest by the nominal capacity. All steam turbine plants equipped with T-250/300-23.5 turbines of different modifications are operated in large cities of Russia and the neighboring countries covering a significant part of the needs of cities for the electric power and almost fully supplying them with heat power. The design life of a significant part of the operated steam turbine plants of this family is either expired or almost expired. It refers to both the turbine unit (including a turbine and a generator) and the turbine plant equipment. For steam turbine plants equipped with T-250/300-23.5 turbines, which were initially designed and mounted for work with deaerators at electric power stations, the heat flow diagrams with and without a deaerator were compared. The main advantages and disadvantages of each scheme were shown. It was concluded that, for the newly constructed power units with supercritical steam parameters, it is preferable to use the heat flow diagram without a deaerator; for the upgraded blocks, if there are no objective reasons for the removal of a deaerator, it is recommended to keep the existing heat flow diagram of a turbine plant. 相似文献
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A. Ye. Valamin A. Yu. Kultyshev Yu. A. Sakhnin M. V. Shekhter M. Yu. Stepanov 《Thermal Engineering》2012,59(12):907-912
This paper describes the design, schemes of regulation, and control and protection of steam turbines of the T-50/60-8.8, K-63-8.8, and Tp-100/110-8.8 types destined for modernization of thermal power plants with replacement of K-50-90 and K-100-90 turbines that have very low efficiency and exhausted not only their designed, but also fleet life. The replacement proposed is based on state-of-the-art engineering solutions and will be carried out at concrete thermal power plants and CHP plants. 相似文献
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A. E. Valamin Yu. A. Sakhnin V. B. Novoselov A. A. Ivanovskii 《Thermal Engineering》2009,56(9):747-752
Problems relating to replacement and retrofitting of steam turbines that have worked through their service life are considered, and methods for extending their service life are discussed. Concrete activities carried out at Ural Turbine Works in the course of renovating and retrofitting T-100/110-12.8 turbines are presented. 相似文献
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A. E. Valamin A. Yu. Kultyshev T. L. Shibaev A. A. Gol’dberg Yu. A. Sakhnin M. Yu. Stepanov M. V. Shekhter V. N. Bilan E. N. Polyaeva 《Thermal Engineering》2016,63(11):755-764
The design, schematics, and arrangement of a T-295/335-23.5 turbine and the basic features of a steam-turbine unit (STU) intended for replacement of STUs with a T-250/300-23.5 turbine with the expired service life and installed in large cities, such as Moscow, St. Petersburg, Kiev, Minsk, and Kharkov, for heat and power generation are considered. The basic solutions for an automatic electrohydraulic control and protection system using high-pressure (HP) technology are described. As the turbine operates in a power unit together with a supercritical boiler and the design turbine service life of 250000 hours must be attained, turbine component construction materials complying with these requirements are listed. 相似文献
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General considerations regarding the form of the steam-consumption diagram for a three-loop cogeneration-type combined-cycle plant are formulated on the basis of well-known approaches. According to these considerations the diagram should consist of the main chart and numerous corrections that must be taken into account in using the diagram. The steam-consumption diagram of the T-113/145-12.4 steam turbine for the PGU-410 combined-cycle plant at the Krasnodar cogeneration station is presented. 相似文献
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介绍了湖南华润电力鲤鱼江有限公司2号机组(300MW)采用常规法的甩负荷试验,并针对抑制超速保护控制装置(OPC)的频繁动作和防止转速二次飞升的问题,提出优化数字式电液调节系统(DEH)中OPC动作逻辑和甩负荷后尽快使再热蒸汽压力降低的见解,可供大型机组甩负荷试验参考和借鉴。 相似文献
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单轴联合循环发电机组中燃气轮机输出功率和汽轮机输出功率的合理区分是联合循环机组运行状态监测与性能分析领域亟需解决的重要问题之一。基于燃气轮机和汽轮机的基本原理,提出一种实施方便、通用性强的单轴联合循环机组燃气轮机与汽轮机功率区分方法。结果表明:采用该方法获得的计算结果与某F级单轴联合循环机组(匹配三压再热凝汽式汽轮机)热平衡设计数据对比,汽轮机功率的最大相对偏差为1.6%,燃气轮机功率的最大相对偏差为–1.42%。这表明本文提出的功率区分方法具有较好的计算精度,可为相关工程应用提供参考和借鉴。 相似文献
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T. Yu. Linder A. Yu. Kultyshev Yu. A. Sakhnin R. R. Davletbaev 《Thermal Engineering》2012,59(12):919-923
The temperature fields and distributions of thermal displacements of the rotor and stator of a T-40/50-8.8 turbine are calculated for selecting the axial erection and working gaps between the diaphragm and rotor in each turbine stage in designing the flow path of this turbine and drawing up its theoretical drawing. 相似文献
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The selection of a profile of a heat-recovery combined-cycle cogeneration plant of 400- to 420-MW capacity for the expansion of the TETs-25 Mosenergo cogeneration plant is substantiated. It is shown that the most preferable version is a two-shaft arrangement with a gas turbine installed at a zero elevation level and a steam turbine mounted on a frame foundation, with cogeneration equipment located in the basement. 相似文献
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鸭溪电厂300MW引进型汽轮机运行中暴露出一些问题,如调节级存在汽封齿易倒伏、设计效率与实际运行效率偏差大、高压缸上下缸温差大等问题。通过优化改造的途径加以完善.取得了较好的效果。 相似文献