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11. 发明授权

US5269130A Method for operating a gas and steam turbine plant and gas and steam turbine plant operated according to the method 失效
标题翻译：根据该方法操作气体和蒸汽轮机设备以及气体和汽轮机的操作方法
公开(公告)号：US5269130A
公开(公告)日：1993-12-14
申请号：US889506
申请日：1992-05-27
申请人： Hermann Finckh , Hermann Bruckner
发明人： Hermann Finckh , Hermann Bruckner
IPC分类号： F01K23/10 , F02G3/00
CPC分类号： F01K23/108
摘要： A gas and steam turbine plant has a gas turbine producing exhaust gas, a water-steam loop in which water is preheated at a given high pressure and subsequently evaporated, a steam turbine in the water-steam loop, and a steam generator through which the exhaust gas flows for generating steam for the steam turbine. The steam generator has at least one preheater connected to the water-steam loop and a high-pressure heater connected downstream of at least one preheater. The water-steam loop has a partial loop connected parallel to the at least one preheater outside the steam generator for carrying an adjustable throughput quantity. A heat exchanger is disposed in the steam generator in the vicinity of the at least one preheater for removing usable heat. A method for operating the plant includes preheating a partial quantity of the water to be preheated outside the steam generator at the given high pressure, and adjusting the partial quantity as a function of an available total water quantity and admixing the partial quantity with the water preheated in the steam generator.
摘要翻译：燃气和蒸汽轮机设备具有产生废气的燃气轮机，水蒸气回路，其中水在给定的高压下被预热并随后蒸发，水蒸汽回路中的蒸汽轮机和蒸汽发生器，用于产生用于汽轮机的蒸汽的废气流。蒸汽发生器具有至少一个连接到水 - 蒸汽回路的预热器和连接在至少一个预热器下游的高压加热器。水蒸汽回路具有与蒸汽发生器外部的至少一个预热器并联连接的部分回路，用于承载可调吞吐量。在所述蒸汽发生器中在所述至少一个预热器附近设置热交换器，用于去除可用的热量。一种用于操作该设备的方法包括在给定的高压下将部分待预热的水预热到蒸汽发生器外部，并且将部分量调节为可用的总水量的函数，并将该部分量与预热的水混合在蒸汽发生器中。

12. 发明授权

US5044163A Process and plant for generating steam using waste heat 失效
标题翻译：使用废热产生蒸汽的工艺和设备
公开(公告)号：US5044163A
公开(公告)日：1991-09-03
申请号：US555398
申请日：1990-08-08
申请人： Hermann Bruckner , Lothar Stadie , Josef Pulec
发明人： Hermann Bruckner , Lothar Stadie , Josef Pulec
IPC分类号： F01K23/10
CPC分类号： F01K23/108 , F01K23/101 , Y02E20/16
摘要： In plants for generating steam using waste heat, the heat in the hot waste gases flowing through the steam generator must be utilized with maximum efficiency. To this end, the feed water is branched into two streams, one of which flows into the high-pressure heating surfaces and the other into the heating surfaces of the medium-pressure evaporator. The division of the two streams is controlled as a function of the quality of the steam, so that the steam in the heating surfaces of the intermediate superheater is heated to the same temperature as the steam in the heating surfaces of the high-pressure superheater. The invention is particularly useful in combined gas and steam turbine power plants.
摘要翻译： PCT No.PCT / DE89 / 00081 Sec。 371日期1990年8月8日第 102（e）日期1990年8月8日PCT提交1989年2月10日PCT公布。出版物WO89 / 07700 日期1989年8月24日。在使用废热产生蒸汽的工厂中，必须以最大的效率利用流经蒸汽发生器的热废气中的热量。为此，给水被分支成两股流，其中一个流入高压加热表面，另一个流入中压蒸发器的加热表面。根据蒸汽的质量控制两个流的分配，使得中间过热器的加热表面中的蒸汽被加热到与高压过热器的加热表面中的蒸汽相同的温度。本发明在组合的气体和蒸汽轮机发电厂中特别有用。

13. 发明授权

US4799461A Waste heat recovery boiler 失效
标题翻译：余热回收锅炉
公开(公告)号：US4799461A
公开(公告)日：1989-01-24
申请号：US163514
申请日：1988-03-02
申请人： Toshinori Shigenaka , Iwao Kusaka
发明人： Toshinori Shigenaka , Iwao Kusaka
IPC分类号： F01K23/10 , F22B1/18 , F22D1/00
CPC分类号： F01K23/108 , F22B1/1815 , Y02E20/16
摘要： A waste heat recovery boiler comprising heat exchange rate switching means for controlling the rate of heat exchange between an exhaust gas and feedwater in a heat exchanger by changing the state of the feedwater in accordance with the concentration of sulfur oxides in the exhaust gas, thereby maintaining the temperature at which low temperature corrosion due to the exhaust gas is prevented in a downstream portion of the heat exchanger in the direction in which the exhaust gas flows. Accordingly, it is possible to achieve the maximum efficiency of heat recovery since the phenomenon of steaming in the heat exchanger is eliminated irrespective of whether the kind of exhaust gas is a dirty gas or a clean gas.

14. 发明授权

US4638630A Cooldown control system for a combined cycle electrical power generation plant 失效
标题翻译：联合循环发电厂的冷却控制系统
公开(公告)号：US4638630A
公开(公告)日：1987-01-27
申请号：US686956
申请日：1984-12-27
申请人： Alan Martens , Bennie E. Snow
发明人： Alan Martens , Bennie E. Snow
IPC分类号： F01D21/12 , F01K23/10 , F02C6/18
CPC分类号： F01D21/12 , F01K23/108 , Y02E20/16
摘要： In a combined cycle electrical power generator plant, the shut-down process includes a cooldown control period which is minimized before shutting down the gas turbine by detecting first whether a non-steaming condition has been reached and whether the gas turbine has been reduced to minimum load.
摘要翻译：在联合循环发电厂中，关闭过程包括冷却控制周期，其在关闭燃气轮机之前被最小化，首先检测是否已达到非汽化状态以及燃气轮机是否已经减小到最小加载。

15. 发明授权

US4576124A Apparatus and method for fluidly connecting a boiler into pressurized steam feed line and combined-cycle steam generator power plant embodying the same 失效
标题翻译：将锅炉流体连接到加压蒸汽进料管和实施其的联合循环蒸汽发生器发电厂的装置和方法
公开(公告)号：US4576124A
公开(公告)日：1986-03-18
申请号：US664638
申请日：1984-10-25
申请人： Alan Martens , Kermit R. Wescott , Bennie E. Snow
发明人： Alan Martens , Kermit R. Wescott , Bennie E. Snow
IPC分类号： F01K23/10 , F22B35/00 , F22D7/00
CPC分类号： F01K23/108 , F22B35/008 , Y02E20/16
摘要： A coupling controller opens a dump valve at the outlet of a heat recovery steam generator when such generator is to be coupled to another generator being in operation with a steam turbine on a common header. The controller gradually permits pressure build-up until the pressure at the outlet of the new generator matches the pressure behind the header. The controller also responds to critical conditions in the superheater as well as in the high pressure drum of the generator in the operation.
摘要翻译：当这种发电机与另一台发电机相连时，耦合控制器在热回收蒸汽发生器的出口处打开一个排放阀，该另一个发电机正在公用集管上的蒸汽轮机上运行。控制器逐渐允许压力积聚，直到新发生器出口处的压力与头部后面的压力匹配。该控制器还响应过热器以及在运行中的发电机的高压鼓中的关键条件。

16. 发明授权

US4501233A Heat recovery steam generator 失效
标题翻译：热回收蒸汽发生器
公开(公告)号：US4501233A
公开(公告)日：1985-02-26
申请号：US487820
申请日：1983-04-22
申请人： Iwao Kusaka
发明人： Iwao Kusaka
IPC分类号： F01K23/10 , F22B33/16 , F22B35/00 , F22B37/32 , F22D7/00
CPC分类号： F01K23/108 , F22B33/16 , F22B35/007 , F22B37/322
摘要： Heat recovery boiler equipment comprising high and low pressure boiler drums and high and low pressure evaporators is disclosed. A recirculation pipeline system is also disclosed in which a control device is provided to control the flow rate of recirculated feed water to maintain a temperature below which cold corrosion occurs. The recirculation of feed water allows for a shorter starting time during restart. Additionally, pressure can be held at a predetermined value to prevent corrosion due to the intrusion of air.
摘要翻译：公开了包括高低压锅炉鼓和高低压蒸发器的热回收锅炉设备。还公开了一种再循环管道系统，其中提供控制装置以控制再循环给水的流量以保持低于该温度的温度。给水的再循环允许在重新启动期间更短的启动时间。此外，可以将压力保持在预定值，以防止由于空气的侵入而引起的腐蚀。

17. 发明授权

US4047005A Combined cycle electric power plant with a steam turbine having a throttle pressure limiting control 失效
标题翻译：具有节气门压力限制控制的蒸汽轮机的联合循环发电厂
公开(公告)号：US4047005A
公开(公告)日：1977-09-06
申请号：US497345
申请日：1974-08-13
申请人： Richard S. Heiser , Ola J. Aanstad
发明人： Richard S. Heiser , Ola J. Aanstad
IPC分类号： F01K23/10 , F22B35/00 , F01K23/00 , F02C1/04 , G05B15/00
CPC分类号： F22B35/008 , F01K23/108 , Y02E20/16
摘要： A combined cycle electric power plant includes two gas turbines, a steam turbine, and a digital control system with an analog or manual backup. Each of the gas turbines has an exhaust heat recovery steam generator connected to a common header from which the steam is supplied by one or both of the steam generators for operating the steam turbine. The digital/analog system includes a steam throttle pressure limiting control, which maintains a minimum steam throttle pressure as a function of steam flow to limit the maximum steam velocity through the steam generators, and reduce the probability of water carryover into the steam turbine. In response to a reduction in the number of steam generators in service, the pressure flow relationship is transferred from one characterization to another, and during such transfer, the analog system operates the steam turbine control valves to limit the rate of steam pressure decay as a function of steam flow.
摘要翻译：联合循环发电厂包括两个燃气轮机，蒸汽轮机和具有模拟或手动备用的数字控制系统。每个燃气轮机具有连接到公共集管的排气热回收蒸汽发生器，蒸汽由蒸汽发生器中的一个或两个供应以用于操作蒸汽轮机。数字/模拟系统包括蒸气节气门压力限制控制，其保持作为蒸汽流量的函数的最小蒸汽节流压力，以限制通过蒸汽发生器的最大蒸汽速度，并且减少水携带到蒸汽涡轮机中的可能性。响应于在使用中的蒸汽发生器的数量的减少，压力流动关系从一个表征转移到另一个表征，并且在这种转移期间，模拟系统操作蒸汽涡轮机控制阀以将蒸汽压力衰减的速率限制为蒸汽流动功能。

18. 发明授权

US3990230A Method for controlling steam turbine and device therefor in composite plant equipped with steam turbine and gas turbine 失效
标题翻译：配备蒸汽轮机和燃气轮机的复合机组控制汽轮机及其装置的方法
公开(公告)号：US3990230A
公开(公告)日：1976-11-09
申请号：US524266
申请日：1974-11-15
申请人： Hidesumi Kuwashima , Ryosuke Arie
发明人： Hidesumi Kuwashima , Ryosuke Arie
IPC分类号： F01D17/24 , F01K7/20 , F01K23/10 , F02C7/02
CPC分类号： F01D17/24 , F01K23/108 , F01K7/20
摘要： In a plant of a composite cycle which includes a steam turbine having a high pressure portion and a low pressure portion, a gas turbine, and a waste heat boiler having heat exchangers producing high pressure steam and low pressure steam to be fed to the steam turbine, by the use of exhaust gas from the gas turbine as a heat source; there are provided steam valves on steam passages through which steam is fed from the heat exchangers of waste heat boiler to the steam turbine; a detecting device for detecting the condition of steam flowing into the steam valve; and another detecting device for detecting the r.p.m. of the steam turbine; whereby the opening and closing of the steam valves are controlled by means of a selecting device which preferentially selects either of signals from the aforesaid detecting devices to adjust the quantity of steam to be fed to the steam turbine for controlling the steam turbine.
摘要翻译：在包括具有高压部分和低压部分的汽轮机的复合循环的设备中，具有产生高压蒸汽和低压蒸汽的热交换器的废热锅炉供给到蒸汽轮机通过使用来自燃气轮机的废气作为热源; 在蒸汽通道上设置有蒸汽阀，蒸汽从废热锅炉的热交换器通过蒸汽阀向蒸汽轮机供给; 用于检测流入所述蒸汽阀的蒸汽状态的检测装置; 和用于检测r.p.m的另一检测装置。的蒸汽轮机; 从而通过选择装置来控制蒸汽阀的打开和关闭，选择装置优先选择来自上述检测装置的信号中的任何一个来调节要供给到用于控制蒸汽轮机的蒸汽涡轮机的蒸汽量。

19. 发明授权

US3955358A Combined cycle electric power plant and a heat recovery steam generator with improved fluid level control therefor 失效
公开(公告)号：US3955358A
公开(公告)日：1976-05-11
申请号：US495738
申请日：1974-08-08
申请人： Lyle F. Martz , Richard J. Plotnick
发明人： Lyle F. Martz , Richard J. Plotnick
IPC分类号： F01K13/02 , F01K23/10 , F01K23/06
CPC分类号： F01K23/108 , F01K13/02 , Y02E20/16
摘要： A combined cycle electric power plant includes gas and steam turbines and a steam generator for recovering the heat in the exhaust gases exited from the gas turbine and for using the recovered heat to produce and supply steam to the steam turbine. A condenser receives the spent steam from the steam turbine for converting it into condensate. The steam generator includes a deaerator for receiving the condensate flow from the condenser and for storing it in a storage portion, a feedwater pump for directing the stored condensate through a first heat exchange tube whereby heat is transferred from the gas turbine exhaust gases to the fluid, a main drum for receiving and storing the heated fluid and a second heat exchange tube for heating the fluid by the gas turbine exhaust gases into superheated steam to be supplied to the steam turbine. A water make-up system is associated with the condenser and includes a water make-up storage tank, a return valve for extracting condensate from that supplied to the deaerator for storage in the water make-up storage tank, and a make-up valve for returning water from the water make-up storage tank into the condenser. Fluid level control is provided for maintaining the fluid level within a hotwell storage portion of the condenser, and within the storage portion of the deaerator, by controlling the position of the condensate valve. In particular, the fluid level control is responsive primarily to a measurement of the superheated steam as supplied to said steam turbine and in particular to a difference signal between the flow of superheated steam to said steam turbine and the condensate flow to said deaerator for the control of the position of the condensate valve, and secondarily, to measurements of the fluid level within the deaerator storage portion and the hotwell storage portion to trim the effect of the aforementioned difference signal upon the position of the condensate valve.

20. 发明申请

US20170248042A1 CONTROL VALVE CONTROL METHOD AND CONTROL DEVICE, AND POWER GENERATING PLANT UTILIZING SAME 审中-公开
公开(公告)号：US20170248042A1
公开(公告)日：2017-08-31
申请号：US15597279
申请日：2017-05-17
申请人： Kabushiki Kaisha Toshiba
发明人： Hironori WATANABE , Masayuki Tobo , Takuji Yamasaki , Firman Bagja Juangsa
IPC分类号： H02P6/18 , F01K9/04 , F01K23/10 , G06F19/00
CPC分类号： F01K23/101 , F01K9/04 , F01K23/10 , F01K23/108 , Y02E20/16 , Y02P80/154
摘要： A gas turbine plant including a gas turbine and a compressor is provided with a steam turbine plant including a steam turbine and a condenser, and, an exhaust heat recovery boiler. Steam from the exhaust heat recovery boiler is directly flown to the condenser of the steam turbine plant through a bypass control valve. A pressure sensor detects pressure in a turbine bypass system. A controller outputs, based on a set value from an input device and a process value from the pressure sensor, an open level instruction value to the control value so as to make the process value consistent with the set value in a predetermined sampling cycle. A corrector corrects the set value from the input device in a direction in which the open level instruction value decreases when the open level instruction value from the controller becomes a value that substantially fully opens the control valve.

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