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首页> 外文期刊>Thermal engineering >Specific features of the control systems of new-modification 310-330-MW steam turbines manufactured by PAO turboatom
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Specific features of the control systems of new-modification 310-330-MW steam turbines manufactured by PAO turboatom

机译：PAO涡轮机制造的新型310-330 MW蒸汽轮机控制系统的特定功能

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摘要

Principal engineering solutions taken by PAO Turboatom when developing the control systems of the 310-325-MW turbines for thermal power stations are set forth. A schematic diagram of the control system is presented and the designs of the retrofitted basic mechanisms, viz., high-pressure steam-distribution unit and the cutoff valve, are described. It is noted that the accepted principles of designing the control systems allow retaining the following advantages of the latter: use of the condensate as a cheap nonflammable working fluid, valveless switches to control the locking servomotors, a mechanical ring-type turbine trip mechanism (TTM) in combination with an actuator fitted with two double-seated actuator valves to control the pressure in the pulse security lines, and a rotary valve to block the triggering of the actuator valves during successive testing of the TTM rings by filling the oil during the operation of the turbine and the subsequent raising of the above valves. The control systems of the new-modification turbines are based on microprocessor hardware using electromechanical converters to drive every cutoff valve as a universal solution that is not oriented towards a particular manufacturer of the control system electronics. Application of a mechanical turbine trip mechanism is acknowledged as indispensable for unconditional guarantee of the safe operation of the turbines irrespective of the presence of the electronic turbine trip mechanism.
机译：阐述了PAO Turboatom在开发用于热电站的310-325 MW涡轮机的控制系统时采用的主要工程解决方案。给出了控制系统的示意图，并描述了改造后的基本机构的设计，即高压蒸汽分配单元和截止阀。值得注意的是，设计控制系统的公认原则允许保留以下优点：将冷凝水用作廉价的不易燃工作流体，无阀开关来控制锁定伺服电机，机械环型涡轮跳闸机构（TTM） ）与一个执行器配合使用，该执行器配有两个双座执行器阀以控制脉冲安全管路中的压力，以及一个旋转阀以在TTM环的连续测试期间通过在运行期间注油来阻止执行器阀的触发涡轮机的安装以及上述阀门的后续升高。新型涡轮机的控制系统基于微处理器硬件，该硬件使用机电转换器驱动每个截止阀，作为通用解决方案，而该解决方案并不面向特定的控制系统电子设备制造商。对于无条件保证涡轮机的安全运行，无论是否存在电子涡轮机跳闸机构，都必须使用机械涡轮机跳闸机构。

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