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1.发明公开System and method for operating steam turbine with transient elevated back pressure 审中-公开系统和方法蒸汽轮机与临时反压提高操作
公开(公告)号：EP2345795A2
公开(公告)日：2011-07-20
申请号：EP10195193.7
申请日：2010-12-15
IPC分类号： F01K13/02
CPC分类号： F01K13/02
摘要： A method and control system for implementing a transient protection logic algorithm 400 to avoid a turbine exhaust pressure trip 30 due to a short duration transient on turbine exhaust pressure 30 caused by a large reduction in turbine flow coupled with a transient increase in turbine exhaust pressure 30, which specifically occurs during full load rejections. When full load rejection conditions are sensed by power load unbalance 50 and confirmed by secondary means, normal trip settings 20 for turbine exhaust pressure 5 are blocked for a delay period 95 while transient operating limits are in place.
摘要翻译： 对于由于短持续时间的瞬态上通过在涡轮流量大的减速加上涡轮机废气的压力30的瞬时增加引起的涡轮排气压力30实现一个瞬变保护逻辑算法400，以避免涡轮机排气压力跳闸30所述的方法和控制系统 ，具体的过程中满负荷排斥发生。 当甩满负荷条件由电力负载不平衡50感测到的和由辅助手段证实，正常跳闸设置20，用于涡轮排气压力5被阻塞达延迟时间95，而瞬态操作限制到位。
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2.发明公开Apparatus and methods for supplying auxiliary steam in a combined cycle system 有权在einem kombinierten Kreislaufs系统中的Apparat和Methoden zur Lieferung von Hilfsdampf
公开(公告)号：EP1010864A2
公开(公告)日：2000-06-21
申请号：EP99310120.3
申请日：1999-12-15
IPC分类号： F01K23/10
CPC分类号： F01K23/106 , Y02E20/14 , Y02E20/16
摘要： To provide auxiliary steam, a low pressure valve (62) is opened in a combined cycle system to divert low pressure steam (40) from the heat recovery steam generator (20) to a header (42) for supplying steam to a second combined cycle's steam turbine seals, sparging devices and cooling steam for the steam turbine if the steam turbine and gas turbine lie on a common shaft with the generator. Cooling steam (32) is supplied the gas turbine in the combined cycle system from the high pressure steam turbine (22). Spent gas turbine cooling steam may augment the low pressure steam supplied to the header by opening a high pressure valve (78) whereby high and low pressure steam flows are combined. An attemperator (74) is used to reduce the temperature of the combined steam (66) in response to auxiliary steam flows above a predetermined flow and a steam header temperature above a predetermined temperature. The auxiliary steam may be used to start additional combined cycle units or to provide a host unit with steam turbine cooling and sealing steam during full-speed no-load operation after a load rejection.
摘要翻译： 为了提供辅助蒸汽，在组合循环系统中打开低压阀（62）以将来自热回收蒸汽发生器（20）的低压蒸汽（40）转移到集管（42），用于将蒸汽供应到第二联合循环 蒸汽涡轮机密封件，喷射装置和用于蒸汽轮机的冷却蒸汽，如果蒸汽轮机和燃气涡轮机与发电机位于公共轴上。 冷却蒸汽（32）由联合循环系统中的燃气轮机从高压蒸汽轮机（22）供给。 废燃气轮机冷却蒸汽可以通过打开高压阀（78）来增加供应到集管的低压蒸汽，由此组合高压和低压蒸汽流。 温度调节器（74）用于响应于超过预定流量的蒸汽流量和高于预定温度的蒸汽总管温度来降低组合蒸汽（66）的温度。 辅助蒸汽可以用于启动额外的联合循环单元，或者在负载排除后的全速空载运行期间为主机单元提供蒸汽轮机冷却和密封蒸汽。
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3.发明公开System and method for operating steam turbine with transient elevated back pressure 审中-公开用于运行具有瞬时高背压的蒸汽轮机的系统和方法
公开(公告)号：EP2345795A3
公开(公告)日：2017-12-13
申请号：EP10195193.7
申请日：2010-12-15
IPC分类号： F01K13/02
CPC分类号： F01K13/02
摘要： A method and control system for implementing a transient protection logic algorithm 400 to avoid a turbine exhaust pressure trip 30 due to a short duration transient on turbine exhaust pressure 30 caused by a large reduction in turbine flow coupled with a transient increase in turbine exhaust pressure 30, which specifically occurs during full load rejections. When full load rejection conditions are sensed by power load unbalance 50 and confirmed by secondary means, normal trip settings 20 for turbine exhaust pressure 5 are blocked for a delay period 95 while transient operating limits are in place.
摘要翻译： 一种用于实现瞬态保护逻辑算法400的方法和控制系统，以避免由于涡轮机排气压力30的短暂持续时间短暂引起的涡轮机排气压力跳闸30，该涡轮机排气压力30伴随着涡轮机排气压力30的瞬时增加 ，这在满载排斥期间特别发生。 当动力负载不平衡50检测到满载拒绝条件并且通过次要装置确认时，用于涡轮机排气压力5的正常跳闸设置20在暂时运行极限到位时被阻断延迟时间段95。
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4.发明公开Apparatus and methods for supplying auxiliary steam in a combined cycle system 有权装置和用于在联合循环系统供应辅助蒸汽的方法
公开(公告)号：EP1010864A3
公开(公告)日：2002-08-07
申请号：EP99310120.3
申请日：1999-12-15
IPC分类号： F01K23/10
CPC分类号： F01K23/106 , Y02E20/14 , Y02E20/16
摘要： To provide auxiliary steam, a low pressure valve (62) is opened in a combined cycle system to divert low pressure steam (40) from the heat recovery steam generator (20) to a header (42) for supplying steam to a second combined cycle's steam turbine seals, sparging devices and cooling steam for the steam turbine if the steam turbine and gas turbine lie on a common shaft with the generator. Cooling steam (32) is supplied the gas turbine in the combined cycle system from the high pressure steam turbine (22). Spent gas turbine cooling steam may augment the low pressure steam supplied to the header by opening a high pressure valve (78) whereby high and low pressure steam flows are combined. An attemperator (74) is used to reduce the temperature of the combined steam (66) in response to auxiliary steam flows above a predetermined flow and a steam header temperature above a predetermined temperature. The auxiliary steam may be used to start additional combined cycle units or to provide a host unit with steam turbine cooling and sealing steam during full-speed no-load operation after a load rejection.
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5.发明授权Apparatus and methods for supplying auxiliary steam in a combined cycle system 有权装置和用于在联合循环系统供应辅助蒸汽的方法
公开(公告)号：EP1010864B1
公开(公告)日：2006-06-21
申请号：EP99310120.3
申请日：1999-12-15
IPC分类号： F01K23/10
CPC分类号： F01K23/106 , Y02E20/14 , Y02E20/16
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