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21. 发明专利

JPH09166002A COMBINED CYCLE POWER GENERATION PLANT 失效
公开(公告)号：JPH09166002A
公开(公告)日：1997-06-24
申请号：JP32537595
申请日：1995-12-14
申请人： HITACHI LTD
发明人： SASAKI TOSHIHIKO , TAKEDA TAIJI , HOIZUMI SHINICHI , SAGAWA KAZUYA
IPC分类号： F01K23/10 , F02C6/18 , F02C7/16
摘要： PROBLEM TO BE SOLVED: To provide a compact and highly efficient plant wherein steam is used for cooling a gas turbine and a steam cooling type gas turbine having a non-reheat steam cycle medium or small capacity is used. SOLUTION: In a combined cycle power generation plant wherein a gas turbine 13 and a steam turbine 31 are combined together and a exhaust heat recovering boiler 21 for generating steam for driving the seam turbine by using heat exhausted from the gas turbine 13, a steam cooling type gas turbine for cooling the high-temperature part of the gas turbine 31 by using steam as a medium is provided. Steam is supplied from the superheater 25 of the exhausted heat recovering boiler 21 to a gas turbine cooling part 14 and steam after cooling is recovered to the high pressure part of the steam turbine 31. Thus, gas turbine cooling steam is effectively utilized and a compact and highly efficient plant is provided.

22. 发明专利

JPS6185508A Warming apparatus for high pressure turbine 失效
标题翻译：高压涡轮加热装置
公开(公告)号：JPS6185508A
公开(公告)日：1986-05-01
申请号：JP20632184
申请日：1984-10-03
申请人： Hitachi Ltd
发明人： TAKEDA TAIJI , KOMATSU HIDEAKI , HORIUCHI TOSHIO
IPC分类号： F01K7/24 , F01D19/02
CPC分类号： F01D19/02
摘要： PURPOSE:To prevent the revolving speed of a turbine rotor from increasing as well as to perform its stable warming, by installing a device which controls a ventilator valve by means of an internal pressure detecting signal for a high pressure turbine in time of completion of warming the high pressure turbine. CONSTITUTION:In time of completion of warming a high pressure turbine 6, a warming valve 9 is fully closed, while a high pressure turbine inlet control valve 5 also performs its closing motion. At this time, a ventilator valve 17 is selected so as not to make it open till internal pressure of the high pressure turbine 6 becomes less than the prescribed value by means of a pressure signal out of a pressure generator 20 installed after an initial stage of the high pressure turbine. Thus, the revolving speed of a turbine rotor is prevented from increasing, and its stable warming is performable.
摘要翻译：目的：为了防止涡轮转子的转速升高以及稳定升温，通过在完成加热时，通过安装高压涡轮机内部压力检测信号来控制通气阀的装置高压涡轮机。构成：在完成升温高压涡轮机6的时候，加热阀9完全关闭，而高压涡轮机入口控制阀5也执行其关闭运动。此时，选择通风机17，使其不会打开，直到高压汽轮机6的内部压力通过在初始阶段之后安装的压力发生器20的压力信号变得小于规定值高压涡轮机。因此，能够防止涡轮转子的转速上升，能够稳定地变暖。

23. 发明专利

JP2005210833A Method for simultaneously and equally controlling consigned power 审中-公开
标题翻译：同时和均等地控制功率的方法
公开(公告)号：JP2005210833A
公开(公告)日：2005-08-04
申请号：JP2004014666
申请日：2004-01-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAKAMOTO TATSUO , TAKEDA TAIJI , KUSAKA SATOSHI
IPC分类号： H02J3/46
摘要： PROBLEM TO BE SOLVED: To stably, simultaneously and equally control power in response to the rapid change of a fluctuation of the quantity of power received by customers. SOLUTION: The quantity of received power received by the customers for receiving power consigned from a power station through a power system, and the quantity of transmitted power transmitted from the power station, are captured (S1). A basic control is implemented, divides a defined time into a plurality of control intervals so as to limit a deviation between the quantity of transmitted power and the quantity of received power in the defined time determined by a consignation condition within a defined value, and corrects an instruction value of the quantity of transmitted power outputted to the power station at next control interval, so as to reduce the deviation between the quantity of transmitted power and the quantity of received power at one control interval (S2). When the fluctuation of the quantity of received power is a defined value or more at one control interval (S3, S4, S6), the instruction value of the quantity of transmitted power at the other control interval subsequent to one control interval, is corrected on the basis of a predetermined programmed load pattern (S5, S7). COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：响应于客户接收的功率量的波动的快速变化，稳定地同时并且同等地控制功率。
解决方案：捕获从用户通过电力系统从发电站接收的电力接收到的接收功率的数量和从发电站发送的发送功率的数量（S1）。执行基本控制，将定义的时间划分为多个控制间隔，以便限制在由规定值内的委托条件确定的限定时间内的发送功率量与接收功率量之间的偏差，并且校正在下一个控制间隔输出到电站的发送功率量的指令值，以便在一个控制间隔（S2）减小发送功率量与接收功率量之间的偏差。当接收功率量的波动在一个控制间隔（S3，S4，S6）为规定值以上时，在一个控制间隔之后的其他控制间隔的发送功率量的指令值被修正为是预定的编程负载模式的基础（S5，S7）。版权所有（C）2005，JPO＆NCIPI

24. 发明专利

JPH04203306A SINGLE SHAFT TYPE COMBINED CYCLE ELECTRIC POWER PLANT 失效
公开(公告)号：JPH04203306A
公开(公告)日：1992-07-23
申请号：JP32902390
申请日：1990-11-30
申请人： HITACHI LTD
发明人： TAKEDA TAIJI
IPC分类号： F01K23/10
摘要： PURPOSE:To prevent heating of a turbine when the turbine is stream-blown in a test run by interposing a valve on an auxiliary steam pipe for introducing steam from an auxiliary steam source, and introducing auxiliary steam to the steam turbine through the valve. CONSTITUTION:Steam from an auxiliary steam source 31 is controlled by an auxiliary steam header 32 under a constant pressure, and the steam is introduced to a cross over pipe 15 after a required steam condition of a low pressure steam turbine 9 is satisfied through a valve 34 and a desuperheater 35. A valve 34 catches an actual pressure from a pressure transmitter 38 to control the steam pressure to be a pressure which is required by the steam turbine. The desuperheater 35 cools the steam from the valve 34 by desuperheating water supplied through a desuperheating water pipe 36 which is branched from a water feeding pipe 18 to satisfy a condition required by the steam turbine as cooling steam. Thereby, at the time of steam blowing of a high pressure steam pipe 21 and a low pressure steam pipe 25 is performed, the steam turbine is driven at a rated number of revolution to prevent heating of the turbine due to a windage loss of the steam turbine.

25. 发明专利

JPS59203812A Water supply system to deaerator 失效
标题翻译：供水系统给饮水机
公开(公告)号：JPS59203812A
公开(公告)日：1984-11-19
申请号：JP7614483
申请日：1983-05-02
申请人： Hitachi Ltd
发明人： KOMATSU HIDEAKI , TAKEDA TAIJI
IPC分类号： F01K9/00 , F01K9/02 , F22D1/28
CPC分类号： F01K9/023
摘要： PURPOSE:To keep the water level of a deaerator at a prescribed level or higher at all times by providing a system supplying the deaerator with water from a water supply source and a control system supplying water by the water level of the deaerator. CONSTITUTION:Steam at a high temperature generated from a boiler 1 on a first cutback and a load runback flows into a condenser 10 through a bypass line 7. A makeup water tank 16 is installed as a water supply source, and a feed water line 20 supplying a deaerator 13 with water from the water supply tank 16 is mounted. A water supply pump 18 is started and a deaerator inlet water supply inlet valve 23 is opened by a signal from a deaerator water-level transmitter 22. Accordingly, the water level of the deaerator 13 can be kept to the prescribed water level or higher at all times.
摘要翻译：目的：通过提供从供水源提供脱气器的系统和通过除氧器的水位供水的控制系统，始终将脱气器的水位保持在规定水平以上。构成：在第一次切割和负载回流时从锅炉1产生的高温蒸汽通过旁路管线7流入冷凝器10.补充水箱16安装为供水源，进水管线20 从供水箱16供给除氧器13的水。启动供水泵18，并且通过来自脱气器水位变送器22的信号使脱气器入口供水入口阀23打开。因此，除气器13的水位可以保持在规定的水位以上一直。

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