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1. 发明专利

JPS6477444A GENERATOR COOLING DEVICE 失效
公开(公告)号：JPS6477444A
公开(公告)日：1989-03-23
申请号：JP23223287
申请日：1987-09-18
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： TERANISHI NORIYOSHI , MEGURO KAZUTOSHI , KUROSAWA MASARU , TAKEDA TAIJI , NAKAJIMA YUTAKA
IPC分类号： H02K9/24 , H02K9/18
摘要： PURPOSE:To allow a generator to perform overload operation, by controlling it so that the refrigerant temperature on low temperature side may be constant when the load of a generator is lower than the rating and the refrigerant temperature on high temperature side may be so when the load is higher than the rating. CONSTITUTION:The hydrogen to cool a rotor of a generator is cooled with cooling water by a hydrogen cooler 4. Ecach temperature of hydrogen at the inlet (on the high temperature side) and at the outlet (on the low temperature side) of the hydrogen cooler 4 is controlled to be constant with heat regulators 22 and 23 respectively. The temperature of cooling water to cool a stator 12 of the generator is controlled with heat regulators 25 and 26 likewise. When the load of the generator is lower than the rating, the temperature on the low temperature side is kept constant, because the signal selectors 24 and 27 will select the signals from heat regulators 23 and 26. When the generator is overloaded, the temperature on the high temperature side is kept constant, because the signal selectors 24 and 27 will select the signals from heat regulators 22 and 25.

2. 发明专利

JP2012036863A Gasification power generation system 有权
标题翻译：燃气发电系统
公开(公告)号：JP2012036863A
公开(公告)日：2012-02-23
申请号：JP2010179117
申请日：2010-08-10
申请人： Electric Power Dev Co Ltd , Hitachi Ltd , 株式会社日立製作所 , 電源開発株式会社
发明人： MISHIMA NOBUYOSHI , TAKEDA TAIJI , FUKUHARA HIROSHI , SHIKAGE SHIN
IPC分类号： F02C3/28 , C10K3/04 , F01K23/10 , F02C6/00 , F02C6/18
CPC分类号： Y02E20/18
摘要： PROBLEM TO BE SOLVED: To improve power generation efficiency by effectively using heat energy generated by a shift reactor caused by shift reaction, and to prevent an increase in a replenishing water quantity of a system by dispensing with methanol processing generated by the shift reaction, in a gasification power generation system.SOLUTION: The gasification power generation system includes the shift reactor 5 for supplying formation gas generated by gasifying carbon fuel and converting carbon monoxide in the formation gas into carbon dioxide by using shift steam, a knockout drum 15 for removing moisture in the formation gas after the shift reaction, and a gas turbine 21 for using the formation gas after the shift reaction as fuel. The gasification power generation system further includes an evaporator 6 supplied with drain from the knockout drum 15. The evaporator 6 generates the steam by evaporating the supplied moisture by using reaction heat generated by the shift reactor 5. The steam generated by the evaporator 6 is used for the shift steam.
摘要翻译：要解决的问题：通过有效地利用由换档反应引起的换档反应器产生的热能来提高发电效率，并且通过分配由换档产生的甲醇加工来防止系统的补充水量的增加反应，在气化发电系统中。解决方案：气化发电系统包括用于供给通过气化碳燃料产生的地层气并将地层气中的一氧化碳通过使用换热蒸汽转化为二氧化碳的转换反应器5，用于去除地层中的水分的脱落鼓15 在变换反应之后的气体，以及在变换反应之后将形成气体用作燃料的燃气轮机21。气化发电系统还包括从脱模鼓15供应的排出的蒸发器6.蒸发器6通过使用由变换反应器5产生的反应热蒸发供应的水分而产生蒸汽。使用由蒸发器6产生的蒸汽换班蒸汽。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JPH03175103A STEAM TURBINE EQUIPMENT, METHOD FOR SUPPLYING STEAM THERETO, POWER PLANT AND COMBINED PLANT 失效
公开(公告)号：JPH03175103A
公开(公告)日：1991-07-30
申请号：JP31598689
申请日：1989-12-05
申请人： HITACHI LTD
发明人： TAKEDA TAIJI , OSHIMA YOSHIKUNI
IPC分类号： F01D11/06 , F01D15/10 , F01K9/00 , F01K23/10
摘要： PURPOSE:To simplify steam turbine equipment so as to reduce the manufacturing cost of the equipment by supplying steam into both a packing portion and condensate after adjusting the temperature of the steam using a temperature adjusting means. CONSTITUTION:Steam from a steam source is directed to a desuperheater 22 through auxiliary steam piping 21. The flow of spray water is adjusted by a spray water flow adjusting valve 23 and the temperature of steam flowing out from the desuperheater 22 is adjusted to within the permissible temperature of packing portions 28, 29. After adjusting the temperature the steam has its pressure adjusted by a supplied steam adjusting valve 24 and a released steam adjusting valve 33 and is supplied to the packing portions 28, 29 via sealing piping 26, 27 and is also injected as deaerating steam from a steam injection nozzle 43 via steam releasing piping 103 into condensate contained in a condensate portion 5. The equipment of the grand sealing system is thus partially combined with that of the dearating system so that the equipment is simplified to reduce the manufacturing cost of the equipment.

4. 发明专利

JPH0337304A START OF STEAM TURBINE GENERATION PLANT PROVIDED WITH TURBINE BYPASS DEVICE 失效
公开(公告)号：JPH0337304A
公开(公告)日：1991-02-18
申请号：JP17353089
申请日：1989-07-05
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： TAKEDA TAIJI , KANEDA HIDEAKI , OGINO SATORU , IKEMATSU TAKEHIKO , TERANISHI NORIYOSHI , HOIZUMI SHINICHI
IPC分类号： F01D19/00 , F01K7/24
摘要： PURPOSE:To improve the starting property of a steam turbine generation plant by introducing steam into a high pressure turbine after introducing steam into a medium pressure turbine in starting the plant to change the opening and closing speed of a steam spill valve or intercept valve with a physical amount corresponding to the running condition of a high pressure turbine bypass device. CONSTITUTION:In starting a steam turbine plant, steam from a steam generator 1 is passed through a main steam pipe 2, high pressure bypass pipe 21 and low temperature reheating pipe 6 to be heated again by the steam generator 1 and then sent through a high temperature reheating pipe 7 and intercept valve 8 to a medium pressure turbine 9 and low pressure turbine 10. If the further load is increased after sending the steam into both turbines, a steam spill valve 3 is opened to introduce steam into a high pressure turbine 4. The steam spill valve 3 and intercept valve 8 are controlled by a valve opening controller X according to a turbine load signal Q, while, when the opening B of a high pressure bypass valve is a specified one or less, a controlling signal for stopping the abrupt opening of the steam spill valve 3 is constitutionally inputted to the valve opening controller X.

5. 发明专利

JPS6415407A OPERATING METHOD FOR COMPOUND POWER PLANT 失效
公开(公告)号：JPS6415407A
公开(公告)日：1989-01-19
申请号：JP16871487
申请日：1987-07-08
申请人： HITACHI LTD
发明人： TAKEDA TAIJI , HOIZUMI SHINICHI
IPC分类号： F01D19/00 , F01D21/00 , F01K23/10
摘要： PURPOSE:To make stable operation for a plant continuable by computing a fact that steam is in an overheating area on the basis of temperature and pressure a in an outlet of a high pressure steam turbine, controlling a turbine bypass valve at the required time, and avoiding any wet operation. CONSTITUTION:Air 1 is fed to a waste heat boiler 5 as exhaust gas after being fed to a gas turbine 3 by way of an air regulating blade 2. On the other hand, steam passes through a main hot air pipe 7 from a heater 6 and is fed to a high pressure steam turbine 9 by way of a governing valve 8. And, this steam is fed to a waste heat boiler 5 from a condenser 16 via a feed water pipe 17 after being fed to a low pressure turbine 15 by way of a reheater 12 or the like. In this case, the temperature and pressure detected by each of detectors 25 and 26 installed in an outlet of the high pressure steam turbine 9 are compared with each other by a computing element 27, whereby a fact that the steam is in an overheating area is detected. And, when it is so judged that the steam cannot keep the overheating area longer, the governing valve 8 is closed by a controller 28, and a turbine bypass valve 22 is opened instead, thus wet operation is avoided.

6. 发明专利

JPS59145308A Condensing and deaerating system of combined cycle plant 失效
标题翻译：组合循环装置的冷凝和排放系统
公开(公告)号：JPS59145308A
公开(公告)日：1984-08-20
申请号：JP1876183
申请日：1983-02-09
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： TAKEDA TAIJI , SATSUKA KENJI , INUI TAIJI , OOKURA RIYOUICHI , KANAZAWA MASAO
IPC分类号： F01K9/00 , F01K9/02 , F01K23/10 , F22D11/00
CPC分类号： F01K9/02 , Y02E20/16
摘要： PURPOSE:To shorten the time for starting a plant by adjustably feeding condensate which contains the demanded quantity of the mixed oxygen into a starting condensor so as to quicken the time at which the condensate inside the starting condensor is put into the state where the condensate contains the demanded quality of mixed oxygen. CONSTITUTION:In operation of a plant, a part of the condensate inside a condensor 1 is sent into the condensate pipe 7 of a starting condensor 2 and condensate containing the demanded quantity of mixed oxygen is circulated in the plant having the starting condensor 2 and thereafter sent into it so that the condensate containing a great amount of oxygen and the condensate containing a demanded quantity of it are mixed inside the starting condensor 2, thereby greatly reducing the quantity of the oxygen contained in the condensate inside the condensor 2. Since the steam from the condensor 1 is supplied into the starting condensor 2, the condensate therein becomes excess and therefore recovered in a make-up tank 14. On the other hand, the condensate inside the condensor 1 may become lean, however, the condensate containing considerably great quantity of oxygen is additionally supplied rom a tank 14. The condensate inside the condensor 2 may become rich in the quantity of mixed oxygen to the demanded rate within a short period.
摘要翻译：目的：通过将含有所需量的混合氧气的冷凝水可调节地供入起动冷凝器，缩短启动工厂的时间，以加快启动冷凝器内的冷凝水进入冷凝水含量的时间混合氧的要求质量。规定：在工厂运行中，冷凝器1内的一部分冷凝水被送入起始冷凝器2的冷凝管7，并且含有所需量的混合氧的冷凝物在具有起始冷凝器2的设备中循环，此后送入其中，使得含有大量氧气的冷凝物和含有所需量的冷凝物混合在起始冷凝器2内，从而大大减少了冷凝器2内的冷凝物中所含的氧气的量。由于蒸汽从冷凝器1供应到起始冷凝器2中，其中的冷凝物变得过量，因此在补充槽14中被回收。另一方面，冷凝器1内的冷凝物可能变得倾斜，然而，冷凝物含有相当大的另外从罐14供给氧的量。冷凝器2内的冷凝物可能变得富含混合氧的量在短时间内要求利率。

7. 发明专利

JP2009008365A Steam power plant 有权
标题翻译：蒸汽发电厂
公开(公告)号：JP2009008365A
公开(公告)日：2009-01-15
申请号：JP2007172713
申请日：2007-06-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MITSUKAWA MASASHI , ABE TAKAHIRO , SAKKA KENJI , TAKEDA TAIJI
IPC分类号： F22D1/02 , F22D1/12 , F22D11/00 , F23J15/06
CPC分类号： Y02E20/363
摘要： PROBLEM TO BE SOLVED: To improve energy efficiency in a steam power plant having a flue gas treatment device for controlling an exhaust gas temperature for improving dust collecting efficiency on the inlet side of an electric dust collector. SOLUTION: This steam power plant has the flue gas treatment device 2 and a regenerating cycle 3, and is provided with an exhaust gas-condensate heat exchanger 12 for controlling the exhaust gas temperature for improving the dust collecting efficiency on the inlet side of the electric dust collector 6 in the flue gas treatment device, and is also provided with a condensate bypass passage 11 for bypassing a condensate from the regenerating cycle. The cooling of exhaust gas and the recovery of heat energy from the exhaust gas are performed by supplying the condensate as a heating medium to the exhaust gas-condensate heat exchanger by the condensate bypass passage. A heat exchange condensate flow rate adjusting bypass passage 13 is connected to the condensate bypass passage, and thereby, a heat exchange capacity of the exhaust gas-condensate heat exchanger is adjusted by bypassing a part of the condensate of the condensate bypass passage to the exhaust gas-condensate heat exchanger. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提高具有用于控制排气温度的烟道气处理装置的蒸汽发电厂的能量效率，以提高电除尘器入口侧的集尘效率。
解决方案：该蒸汽发电厂具有烟气处理装置2和再生循环3，并且设置有排气冷凝热交换器12，用于控制排气温度，以提高入口侧的集尘效率的烟尘处理装置中的电除尘器6，并且还设置有用于绕过来自再生循环的冷凝物的冷凝物旁路通道11。通过将冷凝水作为加热介质，通过冷凝旁路通路供给排气冷凝热交换器，进行排气的冷却和从排气回收热能。热交换冷凝水流量调节旁路通路13与冷凝旁通通路连接，从而通过将冷凝旁通通路的一部分冷凝物旁通至排气口来调整排气冷凝热交换器的热交换容量燃气冷凝热交换器。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2006042556A Operating apparatus and operation planning system for cogeneration equipment 有权
标题翻译：用于加工设备的操作装置和操作规划系统
公开(公告)号：JP2006042556A
公开(公告)日：2006-02-09
申请号：JP2004222045
申请日：2004-07-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIGETA SEIJI , MOCHIZUKI TAKAHIRO , TAKEDA TAIJI , KUSAKA SATOSHI
IPC分类号： H02J3/00 , F01K23/10 , F02G5/04 , F22B1/18 , H02J3/46
CPC分类号： Y02E20/14 , Y02P80/15 , Y02T10/166
摘要： PROBLEM TO BE SOLVED: To provide an operating apparatus and an operation planning system for cogeneration equipment which reduces a sold electric power charge to consumers. SOLUTION: In the operating apparatus of the cogeneration equipment in which surplus power C of the cogeneration equipment is wheeled to the consumer 104 using a transmission network 103 of other electric power industry, and a finite difference between the wheeled power and demand power of the consumer is supplied by supplemental power of other electric power industry, when the supplemental power exceeds a set value, a vapor amount supplied from the cogeneration equipment is reduced while the wheeled power is increased to keep the supplemental power to be less than the set value, and wheeled power adjusting means 40, 41 are provided by which the decreased vapor amount is replenished by other vapor sources. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种将热电联产设备的操作装置和操作规划系统减少到消费者的电力收费。解决方案：在热电联产设备的运行装置中，其中热电联产设备的剩余电力C使用其他电力工业的传输网络103向消费者104转移，并且轮式动力和需求功率之间的有限差的消费者由其他电力工业的补充供给时，当补充功率超过设定值时，从热电联供设备供给的蒸汽量减少，同时增加轮式动力以保持补充功率小于设定值提供了通过其它蒸汽源补充减少的蒸汽量的轮式动力调节装置40,41。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JPH11132055A EXHAUST GAS RECIRCULATION TYPE COMBINED PLANT 失效
公开(公告)号：JPH11132055A
公开(公告)日：1999-05-18
申请号：JP22783198
申请日：1998-08-12
申请人： HITACHI LTD
发明人： UTAMURA MOTOAKI , HOIZUMI SHINICHI , TAKEDA TAIJI , SASAKI TOSHIHIKO , KOMATSU HIDEAKI , KIRIKAMI SEIICHI , SUZUMURA TAKESHI , SASADA TETSUO , IKEGUCHI TAKASHI , SUGITA NARIHISA
IPC分类号： F01K23/10 , F02C3/30 , F02C3/34 , F02C6/18 , F02C7/08 , F02C9/18
摘要： PROBLEM TO BE SOLVED: To restrain variation of a gas-turbine exhaust gas temperature and minimize reduction of an evaporation amount during load reduction, by adjusting a gas turbine exhaust gas amount returned to a compressor inlet in order to restrain reduction of the gas-turbine exhaust gas temperature following the load reduction of a combined plant. SOLUTION: In a combined cycle plant consisting of a gas turbine 3, an exhaust heat recovery boiler 4, and a steam turbine 5, electric power is determined by using a fuel amount control valve 7 for controlling a fuel amount injected into a combustor 2 and a recirculation amount controlling means 10 as operation ends, and by adjusting opening by a total controlling device 8. In this total controlling device 8, a function generator FG1 derives an output signal S1 according to a load requiring signal Ld, and a function generator FG2 estimates a combustion temperature from an exhaust gas temperature and a compressor outlet pressure. The output signal S1 is modified from the estimated value, and based on the modified output signal, the recirculation amount controlling means 10 is controlled through an adjuster PI3.

10. 发明专利

JPH07190684A SEA WATER COOLING SYSTEM AND OPERATING METHOD THEREFOR 失效
公开(公告)号：JPH07190684A
公开(公告)日：1995-07-28
申请号：JP33490193
申请日：1993-12-28
申请人： HITACHI LTD
发明人： UTAMURA MOTOAKI , OKURA RYOICHI , SUZUKI TOMOHITO , TAKEDA TAIJI , SUMIYA YOSHIO , MUKOYA TOYOYUKI
IPC分类号： F28G13/00
摘要： PURPOSE:To early uniformize a circulating water temperature to eliminate a chilled water layer, and to remove marine living things by providing an auxil iary system having an auxiliary circulating pump inside a saline water circulat ing system, and agitating, mixing the water in an outlet of the auxiliary system. CONSTITUTION:At the time of filling water before a plant is stopped, an auxiliary system inlet valve 121 and an auxiliary system outlet valve 120 are opened to fully fill sea water in an auxiliary system 116, and a small circulating cycle of the system 116-a sea water circulating system 108-the system 116 is formed. A flow velocity in the system 116 is enhanced by an auxiliary system circulating pump 117, circulating warm water is agitated to uniformize its temperature. The circulating water having a small temperature difference is supplied to the system 108 by mixing high temperature water at an auxiliary system outlet 118 with auxiliary system water raised at its temperature at each one cycle. Thus, stepwise temperature rise is intended to suppress a temperature layer formation. Accordingly, circulating water temperature can be made uniform, and existence of marine living thing can be suppressed.

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