公开(公告)号：US20140250913A1

公开(公告)日：2014-09-11

申请号：US14199506

申请日：2014-03-06

申请人： ALSTOM Technology Ltd

发明人： Hamid OLIA ,  Jan SCHLESIER ,  Michael BREITFELD ,  Philipp BRUNNER

IPC分类号： F01K23/10

CPC分类号： F01K23/10 ,  F01K13/02 ,  F01K23/101 ,  F02C6/18 ,  F05D2220/76 ,  F05D2270/061 ,  Y02E20/14 ,  Y02E20/16

摘要： Method for operating a combined-cycle power plant is provided. The plant includes at least a gas turbine and at least a steam power generation system. The plant activates at least one electric generator connectable to an electric grid, wherein the gas turbine includes a compressor. The steam power generation system includes a steam turbine, a heat recovery steam generator and a bypass line. The method is such that the gas turbine de-loads to a condition, where the compressor operates at its nominal speed. The method is such that the steam turbine de-loads in coordination with the de-load of the gas turbine, to a condition where the total load exported by the plant to the grid is substantially equal to zero, being both the gas turbine and the steam power generation system connected.

摘要翻译： 提供了一种操作联合循环发电厂的方法。 该设备至少包括燃气轮机和至少一个蒸汽发电系统。 该设备激活可连接到电网的至少一个发电机，其中燃气涡轮机包括压缩机。 蒸汽发电系统包括蒸汽轮机，热回收蒸汽发生器和旁路管路。 该方法使得燃气涡轮机卸载到压缩机以其标称速度运行的状态。 该方法使得蒸汽轮机与燃气轮机的卸载协调地脱载，其中由工厂输出到电网的总负载基本上等于零，这两者都是燃气轮机和 蒸汽发电系统连接。

公开(公告)号：US20160273406A1

公开(公告)日：2016-09-22

申请号：US15171681

申请日：2016-06-02

申请人： ALSTOM TECHNOLOGY LTD.

发明人： Hamid OLIA ,  Petrus KOLLER ,  Michael BREITFELD ,  Rudolf Zinniker

IPC分类号： F01K23/10 ,  F02C6/18

CPC分类号： F01K23/101 ,  F01K13/02 ,  F01K23/10 ,  F01K23/106 ,  F02C6/18 ,  F05D2220/31 ,  F05D2220/32 ,  F22G5/12 ,  Y02E20/16

摘要： A combined cycle system where steam discharged from a water separation unit is routed through a high pressure outlet line to a set of super-heaters and discharged from the set of super-heaters through a main outlet line of a heat recovery steam generator to be introduced into the steam turbine. An attemperating line is connected between the high pressure outlet line and the main outlet line of the heat recovery steam generator to introduce a portion of steam that is discharged from the water separation unit into the steam discharged from the set of super-heaters. The pressure difference across a control valve for steam temperature remains low in low load and/or high load applications of the combined cycle system.

摘要翻译： 一种联合循环系统，其中从水分离单元排出的蒸汽通过高压出口管线路由到一组超级加热器，并从该超热机组排出，通过热回收蒸汽发生器的主出口管路引入 进入蒸汽轮机。 在热回收蒸汽发生器的高压出口管线和主出口管线之间连接调温管线，将从水分离单元排出的蒸汽的一部分引入从一组超级加热器排出的蒸汽中。 用于蒸汽温度的控制阀之间的压力差在组合循环系统的低负载和/或高负载应用中保持较低。