公开(公告)号：US20150159514A1

公开(公告)日：2015-06-11

申请号：US14101709

申请日：2013-12-10

Applicant: General Electric Company

Inventor： Mert Geveci

IPC: F01D25/12 ,  F01D21/12

CPC classification number: F01K13/025 ,  F01D17/085

Abstract: A cooling fluid flow control system for a turbine section of a steam turbine system and a related program product are provided. In one embodiment, a system includes at least one computing device operably connected to a cooling system. The computing device may be configured to control a flow rate of cooling fluid supplied to a steam turbine system by the cooling system by performing actions including modeling a sensitivity of a wheel space temperature to a change in the flow rate in the form of a piecewise linear relationship, the piecewise linear relationship including a flooded flow rate above which the wheel space temperature becomes insensitive to increased flow rate. The computing device also periodically modifies the flow rate of the cooling fluid supplied to the wheel space of the turbine section to approximate a minimum flooded flow rate based on the measured flow rate and the modeling.

Abstract translation: 提供了一种用于蒸汽轮机系统的涡轮部分和相关节目产品的冷却流体流量控制系统。 在一个实施例中，系统包括可操作地连接到冷却系统的至少一个计算设备。 计算设备可以被配置为通过执行动作来控制由冷却系统供应到蒸汽涡轮机系统的冷却流体的流量，包括将车轮空间温度的灵敏度建模成以分段线性形式的流量变化 关系，分段线性关系包括溢流流量，在此之上，车轮空间温度对增加的流量不敏感。 计算装置还周期性地修改提供给涡轮机部分的车轮空间的冷却流体的流量，以便基于所测量的流量和建模近似最小淹没流量。