公开(公告)号：US06422807B1

公开(公告)日：2002-07-23

申请号：US09726213

申请日：2000-11-28

申请人： David Leach ,  Iain Robertson Kellock ,  Larry Wayne Plemmons ,  Cedric Chow ,  Brendan Francis Sexton ,  Mark Stewart Schroder

发明人： David Leach ,  Iain Robertson Kellock ,  Larry Wayne Plemmons ,  Cedric Chow ,  Brendan Francis Sexton ,  Mark Stewart Schroder

IPC分类号： F01D1124

CPC分类号： F01D25/08 ,  F01D11/24 ,  F01D25/26

摘要： A method of operating a gas turbine having inner and outer shells, with the inner shell being radially movable relative to rotor bucket tip passage in the inner shell for flowing a thermal medium. A pair of passage portions are formed in each of the aft and forward inner shell sections with axially communicating passageways between the passage portions. A thermal medium, preferably from an off-turbine site, is provided for flow through the second-stage aft inner shell section, along axial passageways along the mid-line of the inner shell to a first passage portion of the forward inner shell section. Cross-over paths flow the thermal medium from the first passage portions to second circumferentially extending passage portions of the forward inner shell section, in turn, in communication with axial passageways extending from the forward section to the aft section. A second pair of passage portions flow the thermal medium to an outlet in the aft section. By controlling the temperature of the thermal medium for flow through the aft and forward sections of the inner shell, the clearance between the shrouds and the tips of the buckets for at least the first and second stages of the turbine is controllably adjusted.

摘要翻译： 一种操作具有内壳和外壳的燃气轮机的方法，其中内壳可相对于内壳中的转子铲斗前端通道径向移动以使热介质流动。 一对通道部分形成在每个前后内壳部分中，在通道部分之间具有轴向连通的通道。 提供优选来自涡轮机外部位置的热介质，用于沿着沿着内壳的中线的轴向通道流到第二级后部内壳部分，以沿着前部内壳部分的第一通道部分流动。 交叉路径将热介质从第一通道部分流动到前内壳部分的第二周向延伸通道部分，然后与从前部延伸到后部的轴向通道连通。 第二对通道部分将热介质流到尾部的出口。 通过控制用于流过内壳的后部和前部的流体的热介质的温度，可控地调节涡轮机的至少第一级和第二级的护罩与铲斗顶端之间的间隙。

公开(公告)号：US06804612B2

公开(公告)日：2004-10-12

申请号：US10020588

申请日：2001-10-30

申请人： Cedric Chow ,  Kelly Crotty ,  John Drohan ,  James Fehlberg ,  Arlie Russell Martin ,  Thad Morton ,  Todd Nemec ,  David Pesetsky ,  Robert Russell Priestley ,  Ming Zhou

发明人： Cedric Chow ,  Kelly Crotty ,  John Drohan ,  James Fehlberg ,  Arlie Russell Martin ,  Thad Morton ,  Todd Nemec ,  David Pesetsky ,  Robert Russell Priestley ,  Ming Zhou

IPC分类号： G06F1900

CPC分类号： F02C9/52 ,  F05D2260/81

摘要： Automated systems for performing integrated analyses. In one embodiment, an integrated analysis system can be used to comprehensively evaluate the effects of changes in hardware configuration or operating conditions on gas turbine power plant performance and economics. The system evaluates these changes by concurrently analyzing a number of different aspects of the power plant while ensuring that the data used in each of the different analyses is consistent. These analyses can include turbine and compressor aerodynamic analysis, cooling and leakage flow analysis, heat transfer analysis, part life analysis, heat balance analysis, cost analysis and overall power plant performance and economic analysis.

摘要翻译： 用于执行集成分析的自动化系统。 在一个实施例中，可以使用集成分析系统来全面评估硬件配置或操作条件变化对燃气轮机发电厂性能和经济性的影响。 系统通过同时分析发电厂的不同方面来评估这些变化，同时确保每个不同分析中使用的数据是一致的。 这些分析可以包括涡轮机和压缩机的空气动力学分析，冷却和泄漏流量分析，热传递分析，零件寿命分析，热平衡分析，成本分析和总体发电厂性能以及经济分析。

公开(公告)号：US06170263B2

公开(公告)日：2001-01-09

申请号：US09311098

申请日：1999-05-13

申请人： Cedric Chow ,  Ashok Kumar Anand ,  Jatila Ranasinghe ,  David Andrew Stats

发明人： Cedric Chow ,  Ashok Kumar Anand ,  Jatila Ranasinghe ,  David Andrew Stats

IPC分类号： F01K2506

CPC分类号： F01K23/068 ,  Y02E20/16 ,  Y02E20/18 ,  Y02P80/152

摘要： Low grade heat recovered from various sections of an integrated gasification system is used to drive an absorption chilling cycle. In an exemplary embodiment, the recovered low grade heat is used to heat a two component working solution that is pumped through a closed cycle absorption chilling system. The heated working solution is separated into a rich stream and a lean stream. The rich stream is condensed to produce a liquid rich stream that is throttled to reduce its temperature and then evaporated to produce a cooling load. The cooling load may be used for auxiliary cooling needs in the integrated gasification system. The rich vapor stream produced by the evaporating step is mixed with the lean stream to produce a mixed stream, which is cooled in an absorber to produce the working solution for the cycle to be repeated.

摘要翻译： 使用从综合气化系统的各个部分回收的低等级热量来驱动吸收冷却循环。 在示例性实施例中，回收的低等级热量用于加热泵送通过封闭循环吸收冷却系统的双组分工作溶液。 加热的工作溶液被分离成富流和贫流。 浓缩的物流被冷凝以产生液体丰富的物流，其被节流以降低其温度，然后蒸发以产生冷却负荷。 冷却负荷可用于集成气化系统中的辅助冷却需求。 通过蒸发步骤产生的富蒸气流与贫流混合以产生混合流，其在吸收器中冷却以产生用于重复循环的工作溶液。