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21. 发明专利

JPS6116210A Method and device of operating steam turbine 失效
标题翻译：运行蒸汽涡轮机的方法和装置
公开(公告)号：JPS6116210A
公开(公告)日：1986-01-24
申请号：JP13728884
申请日：1984-07-04
申请人： Hitachi Ltd
发明人： HASHIMOTO TSUGIO , ARAKAWA TADAO , UENO TAKESHI , INUI TAIJI , KURIBAYASHI TETSUZOU , URUSHIYA HARUO
IPC分类号： F01D19/00 , F01D19/02 , F01D25/12 , F01K7/24 , F01K13/02
CPC分类号： F01D19/02
摘要： PURPOSE:To prevent the occurrence of overheating due to an increase in the internal pressure of a high pressure turbine during the starting, by a method wherein, during the starting of a turbine, flow-in of steam from a middle pressure turbine causes promotion of vent and increasing of a load, and during said vent and rise in a load, a minimum steam amount required for the high pressure turbine is ensured. CONSTITUTION:A steam turbine is provided with a high pressure turbine 3 which is driven by main steam A generated by a steam generator 1. Steam B after flow through the high pressure turbine is reheated by a reheater 5, and reheat steam C is sent to a middle pressure turbine 7 for use therein. The main steam A is escaped through a bypass line 41 running around the high pressure turbine 3. In which case, during the starting of a turbine, flow-in of steam from the middle pressure turbine 7 causes promotion of vent and increasing of a load. Further, the pressure of the reheat steam C is detected by a pressure detector 54, and a steam amount of the high pressure turbine is controlled according to the result of comparison of a necessary minimum flow rate of the high pressure turbine, determined from the detected reheat steam pressure, with an actual high pressure turbine load.
摘要翻译：目的：为了防止在启动期间由于高压汽轮机的内部压力的增加而发生过热，通过这样一种方法，其中在涡轮启动期间，来自中压涡轮机的蒸汽的流入导致促进排气和负载增加，并且在所述排气口和负载下升时，确保了高压汽轮机所需的最小蒸汽量。构成：汽轮机设有由蒸汽发生器1产生的主蒸汽A驱动的高压汽轮机3.流过高压汽轮机后的蒸汽B由再热器5再加热，再加热蒸汽C送至用于其中的中压涡轮机7。主蒸汽A通过围绕高压涡轮机3运行的旁通管线41而逸出。在这种情况下，在涡轮启动期间，来自中压涡轮机7的蒸汽的流入导致排气的增加和负载的增加。此外，再加热蒸汽C的压力由压力检测器54检测，高压汽轮机的蒸汽量根据从检测到的高压汽轮机的必要最小流量的比较结果进行控制再加热蒸汽压力，具有实际的高压涡轮机负载。

22. 发明专利

JPS59125389A Direction control valve of fluid for cooling fluid in condenser 失效
标题翻译：用于冷凝器中冷却流体的流体方向控制阀
公开(公告)号：JPS59125389A
公开(公告)日：1984-07-19
申请号：JP46883
申请日：1983-01-07
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： AKATSU KOUHO , UENO TAKESHI
IPC分类号： F28B9/04 , F28B11/00
CPC分类号： F28B11/00
摘要： PURPOSE:To prevent vacuum in a condenser from deteriorating, by a method wherein a passing sphere of a little water at the time of change-over of a directional control valve is curtailed, while preventing a water hammer phenomenon by alleviating kinetic energy to be possessed by a fluid at an inlet and outlet parts of the directional control valve and, moreover, an acting period of time at the time of the changer-over is curtailed. CONSTITUTION:As a time-limit relay 14 does not generate its output signal until a valve body 2 arrives at a position of an opening X', after the lapse of a predetermined period of time through which the valve 2 is capable of arriving at the opening X', said time-limit relay 14 starts action, generates the output signal, a wiper-out circuit 16 provided on an operation signal line for back washing of a low speed driving part 21 is operated, through which an operation signal for the back washing to the low speed driving part 21 is disconnected, simultaneously with which the operation signal for the back washing is sent out to a high speed driving part 22 and a time-limit relay 17 and a motor VM is turned into a state of high speed driving operation until the valve plug 2 arrives at an opening Y'. This operation range of the high speed driving part performs action of curtailing a passing sphere of a little water toward a condenser, through which it becomes that vacuum of a condenser can be prevented from deteriorating.
摘要翻译：目的：为了防止冷凝器中的真空度恶化，通过减少方向控制阀转换时少量水的通过球的方法，同时通过减轻动能来防止水锤现象通过在方向控制阀的入口和出口部分处的流体，此外，在更换过程时的作用时间段被限制。构成：由于时间限制继电器14在阀体2到达开口X'的位置之前不产生其输出信号，所以在经过预定的时间段之后阀2能够到达开启X'，所述限时继电器14开始动作，产生输出信号，设置在用于低速驱动部21的背面清洗的操作信号线上的擦拭器输出电路16通过其操作，对低速驱动部21的回洗被切断，同时将用于反洗的操作信号发送到高速驱动部22和时限继电器17以及电动机VM变为高电平直到阀塞2到达开口Y'为止。高速驱动部的动作范围，通过将冷凝器的真空度抑制到冷凝器的冷凝器的过小的水分的作用。

23. 发明专利

JPS5912923B2 JPS5912923B2 - 失效
公开(公告)号：JPS5912923B2
公开(公告)日：1984-03-27
申请号：JP14216976
申请日：1976-11-29
申请人： Hitachi Ltd
发明人： UENO TAKESHI
IPC分类号： F22D5/34 , B01J4/00 , B01J4/02 , B01J19/00
CPC分类号： B01J4/008

24. 发明专利

JPS5828916B2 失效
公开(公告)号：JPS5828916B2
公开(公告)日：1983-06-18
申请号：JP3980579
申请日：1979-04-04
申请人： HITACHI LTD
发明人： NAKAMURA SHOZO , UCHAMA YOSHIHIRO , MATSUSHIMA TOKUNORI , TSUNEMATSU HIROSHI , UENO TAKESHI , NAGAI YOJI
IPC分类号： F28B9/08 , F28B9/04 , F28B11/00

25. 发明专利

JPS55134285A CONDENSATION SYSTEM OF SIDEESTREAM TYPE CONDENSER AND ITS CONTROL DEVICE 失效
公开(公告)号：JPS55134285A
公开(公告)日：1980-10-18
申请号：JP3980579
申请日：1979-04-04
申请人： HITACHI LTD
发明人： NAKAMURA SHIYOUZOU , UCHIYAMA YOSHIHIRO , MATSUSHIMA TOKUYUKI , TSUNEMATSU HIROSHI , UENO TAKESHI , NAGAI YOUJI
IPC分类号： F28B9/08 , F28B9/04 , F28B11/00
摘要： PURPOSE:To increase the response speed and to stabilize controlling by connecting a pipe, fitted with a flow controlling valve in its midsection and used for sending a part of purified condensed water, between the condensed water purifying device and the condensed water storage tank. CONSTITUTION:Condensed water purifying device 6 and condensed water storage tank 12 are directly connected by means of a spill-over pipe so that condensed water can be directly returned from the condensed water purifying system to condensed water storage tank 12, which is directly related to the water level of No.1 hot well 2. Flow control valve 12 is provided in condensed water supply pipe 9, which supplies condensed water from the condensed water purifying system to No.2 hot well 3. By this, the No.1 hot well 2 and the water supply tank 12 are directly connected, and the water level of No.1 hot well 2 is controlled by using the condensed water storage tank 12. The water level of No.2 hot well 3 is controlled by the flow control valve 21 of condensed water supply pipe 9. By this, the response characteristics and stability in the control of the water levels of No.1 and No.2 hot well, and the performance of the condensed water purifying device can be improved.

26. 发明专利

JP2000213306A PRESSURE FLUIDIZED BED COMPOUND POWER PLANT 失效
公开(公告)号：JP2000213306A
公开(公告)日：2000-08-02
申请号：JP1293399
申请日：1999-01-21
申请人： HITACHI LTD
发明人： YOSHINARI YUKIMASA , MAO TAKASHI , UENO TAKESHI , MISHIMA NOBUYOSHI
IPC分类号： F01K23/06 , F01K23/10 , F02C3/26
摘要： PROBLEM TO BE SOLVED: To reduce in-plant power at the stoppage and to improve reliability at the stoppage by providing a means for stopping steaming of condensate at an outlet of a low temperature waste heat recovery heat exchanger and steaming of feed water at an outlet of a high temperature waste heat recovery heat exchanger at the normal plant stopping and emergency stopping. SOLUTION: A high temperature gas discharge pipe 29 having a high temperature gas discharge valve 30 is connected between a high temperature gas pipe 25 at the upstream of a gas turbine inlet valve 26 and a gas turbine outlet pipe 28. By a control device 33 for inputting a signals of a pressure detector 31 a temperature sensor 32 and the like of a pressure fluidized bed boiler pressure vessel 5, at the normal plant stopping, fuel inside a pressure fluidized bed boiler 6 is burned, thereafter an air compressor outlet valve 23 and the gas turbine inlet valve 26 are fully closed, an air supply valve 27 is opened, to isolate a boiler 6 side. Next, the high temperature gas discharge valve 30 is opened, and the high temperature gas is discharged to reduce pressure on the boiler 6 side. Operation of a gas turbine 2 is stopped after completion of pressure reduction of the boiler 6.

27. 发明专利

JPH056002B2 失效
公开(公告)号：JPH056002B2
公开(公告)日：1993-01-25
申请号：JP12336083
申请日：1983-07-08
申请人： HITACHI LTD
发明人： KURIBAYASHI TETSUZO , UENO TAKESHI
IPC分类号： F01D15/08 , F01D17/20

28. 发明专利

JPH01121604A CONDENSATE AUXILIARY HEATING APPARATUS 失效
公开(公告)号：JPH01121604A
公开(公告)日：1989-05-15
申请号：JP27744787
申请日：1987-11-04
申请人： HITACHI LTD
发明人： UENO TAKESHI , KOMATSU HIDEAKI
IPC分类号： F22D11/00
摘要： PURPOSE: To attain a substantial reduction of consumption of energy by a method wherein an auxiliary heater for condensed water in a boiling-water type nuclear power plant is separated from a main condensed water flow passage and installed in a bypass condensed water flow passage and then condensed water in a source of cooling water is flowed by a condensed water pressure increasing pump. CONSTITUTION: After main steam generated at a steam generating device 1 performs a work at a high pressure turbine 2, a moisture separator 3 and a low pressure turbine 4, the steam becomes a condensed water at a condenser 5. The condensed water extracted by a low pressure condensing pump 6 is purified by a condensed water purifying device 7, thereafter its pressure is increased by a high pressure condensed water pump 12 and a nuclear reactor water supplying pump 14 and it is supplied to the steam generating device 1, although during its operation, the supply water is heated by a group of low pressure water supplying heaters 13 and a group of high pressure water supplying heaters 15. A steam type air extractor 8 and gland steam condenser 9 are mounted at a main condensed water flow passage 16 and another bypass condenser flow passage 17, after its heat is recovered, its pressure is increased and then it is returned back to the condensed water flow passage 16. The condensed water re-circulating line 18 is taken out between the condenser 9 and the pump 10 and a required amount of condensed water is re-circulated during a troubled state of the pump 10.

29. 发明专利

JPS6380193A SIDE STREAM CONDENSATION SYSTEM 失效
公开(公告)号：JPS6380193A
公开(公告)日：1988-04-11
申请号：JP14534287
申请日：1987-06-12
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： ISHIMARU HITOSHI , UENO TAKESHI , NAGAI HIROTSUGU , MASUDA TOYOHIKO
IPC分类号： F28B9/08
摘要： PURPOSE:To prevent excessive flow rate operation of pump while operating one pump and avoid excessive throttling of a flow rate control valve by adding automatically a flow passage resistance in a condensation cleaning system when one pump is being operated in a transitional state between the normal starting and stopping operations. CONSTITUTION:When only one of two pumps 3 for normal operation is being used for starting and stopping of a plant, signal is obtained from any one of a plurality of operation detection devices 34, and a judgement device 35 outputs a signal to a control device 36 which indicates what the signal from the operation detection device 34 was. With this arrangement, when it is judged that only one of the pumps 3 is operated during starting or stopping, the control device 36 closes a main stop valve 31 by the signal from the judgement device 35 and makes the condensation water flow to a bypass channel 41 and increases the pressure loss by an orifice 33 and decreases the that part of the pressure loss caused by a flow rate control valve 5 to avoid excessive throttling and at the same time prevent excessive flow rate to the pump 3.

30. 发明专利

JPS6136124B2 失效
公开(公告)号：JPS6136124B2
公开(公告)日：1986-08-16
申请号：JP8265779
申请日：1979-07-02
申请人： HITACHI LTD
发明人： NAKAMURA SHOZO , MATSUSHIMA TOKUNORI , UENISHI AKIRA , NAGAI HIROTSUGU , UENO TAKESHI
IPC分类号： F22D1/32 , F22B35/00 , F22B37/02

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