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1. 发明专利

JPH04313602A METHOD FOR CONTROLLING TEMPERATURE OF STEAM FROM BOILER 失效
公开(公告)号：JPH04313602A
公开(公告)日：1992-11-05
申请号：JP7907191
申请日：1991-04-11
申请人： MITSUBISHI HEAVY IND LTD
发明人： TAKADA SHUHO
IPC分类号： F22B35/00 , F22B35/18
摘要： PURPOSE:To improve the performance of controlling the temperature of steam from a boiler. CONSTITUTION:There are provided two channels, namely, a channel A 105 and a channel B 106, formed in parallel through a flue, a damper A 109 and a damper B 110 set respectively in the channel A and the channel B, a heat- transfer part A 107 and a heat-transfer part B 108, and an automatic controller A and an automatic controller B each of which inputs the temperature TA, TB of the steam respectively at the heat-transfer part A and the heat-transfer part B and controls the damper opening of the respective dampers A (109) and B (110) to have the temperature TA or TB of the steam at a set point TAS and a set point TBS respectively. In actuating the control of steam temperature, one of the automatic controllers A, B is actuated in its function of automatic control while the other A or B is being held in a hold mode of actuation.

2. 发明专利

JPS61272406A CONTROL METHOD FOR OUTPUT FROM COMBINED-CYCLE PLANT 失效
公开(公告)号：JPS61272406A
公开(公告)日：1986-12-02
申请号：JP11419985
申请日：1985-05-29
申请人： MITSUBISHI HEAVY IND LTD
发明人： TAKADA SHUHO
IPC分类号： F01K23/10
摘要： PURPOSE:To improve a response characteristic in a plant output, by performing or releasing a control for a steam turbine output by a main steam control valve in accordance with the plant output. CONSTITUTION:A combined-cycle plant comprises plural gas turbines 1A, 1B and a steam turbine 11. An output-setting decrease detecting part 55 detects time a plant output decreases, and the plant controls a main steam control valve 10 so that it agrees with a steam turbine static characteristic value 108. If the plant ceases a decrease of its output, a detection signal 107 disappears, and a steam turbine output control part 57 stops its control function. In this way, the plant can improve a response characteristic of its output while reduce thermal stress of the gas turbine.

3. 发明专利

JPS61272405A CONTROL METHOD FOR OUTPUT FROM COMBINED-CYCLE PLANT 失效
公开(公告)号：JPS61272405A
公开(公告)日：1986-12-02
申请号：JP11419885
申请日：1985-05-29
申请人： MITSUBISHI HEAVY IND LTD
发明人： TAKADA SHUHO
IPC分类号： F01K23/10
摘要： PURPOSE:To control an output to be promptly smoothed in a plant, by performing a control of the output from the plant by a main steam control valve of a steam turbine to be started or released in accordance with an output in a gas turbine. CONSTITUTION:A combined-cycle plant comprises plural gas turbines 1A, 1B and a steam turbine 11. The control method, regulating a main steam control valve opening command 109 from a point of time detecting in detecting parts 55A, 55B a gas turbine output reaching its lower limit, performs a control for a plant output to be started. From a point of time an output decrease of the gas turbines 1A, 1B is detected by the detecting parts 55A, 55B, the control of the plant output by a main steam control valve 10 is released. In this way, the output control of the plant can be promptly smoothed.

4. 发明专利

JPH0495849A TESTING APPARATUS FOR TURBINE VALVE 失效
公开(公告)号：JPH0495849A
公开(公告)日：1992-03-27
申请号：JP21273290
申请日：1990-08-10
申请人： MITSUBISHI HEAVY IND LTD
发明人： TAKADA SHUHO , SHONO MICHIYUKI , HIRATA DAISAKU , EMOTO HIDEAKI
IPC分类号： G01M13/00 , G01M99/00
摘要： PURPOSE:To shorten valve test time and minimize a fluctuation in turbine outputs by outputting a valve travel command of a pattern which can offset the fluctuation in turbine outputs generated by a valve test with respect to valves other than the valve to be tested. CONSTITUTION:Tested valve steam 8 flowing in a valve 6 to be tested and other valve steam 9 flowing in another valve 7 flow into a steam turbine 10. A turbine output is transmitted to a load 28. A test signal generating unit 22 generates a tested valve travel command 4. That is, a signal is generated in a signal pattern wherein the valve 6 to be tested is fully closed once and then returned. An output signal of such a signal pattern wherein a fluctuation in turbine outputs is minimum wherein the valve 6 to be tested is operated according to the tested valve travel command 4 being a test signal is controlled from an output adjusting unit 23 and the valve 7 is controlled according to another valve travel command 5, so that a fluctuation in turbine outputs at the time of testing the valve is minimized. Thus valve test time is reduced and the fluctuation in turbine outputs can be minimized.

5. 发明专利

JPH0412299A PRESSURE CONTROLLER FOR USED NUCLEAR FUEL ROD DISSOLUTION BATH 失效
公开(公告)号：JPH0412299A
公开(公告)日：1992-01-16
申请号：JP11174790
申请日：1990-05-01
申请人： MITSUBISHI HEAVY IND LTD
发明人： TAKADA SHUHO , UEJIMA NAOYUKI , OKA HIROSHI , ISERI HIDEYUKI
IPC分类号： G21C19/46
摘要： PURPOSE:To improve the controllability by outputting a pattern signal of the change with time of the off gas quantity and outputting a fuel weight signal and a prescribed conversion coefficient signal to a multiplier and outputting the obtained feed forward signal to an adder. CONSTITUTION:When the supply of cut fuel from a shearing machine to a used nuclear fuel rod dissolution bath 100 is started, a fuel supply signal is sent from a fuel supply signal source 10 to a signal generator 1, and a pattern signal 2 of the change of the off gas quantity is outputted from the generator 1 to a multiplier 4. At this time, a fuel weight signal 3 is sent from a supply fuel quantity signal source 20 to the multiplier 4, and signals 3 and 2 and the conversion coefficient signal from a conversion coefficient device 30 are multiplied to obtain a feed forward signal 5 corresponding to the off gas generation pattern for the current supplied fuel quantity. This signal 5 is outputted to an adder 6. The adder 6 adds the signal 5 from the multiplier 4 to a blower operation signal 106 from a PI controller 105 and outputs the result as a blower operation signal to a device such as a blower.

6. 发明专利

JPS61210208A TURBINE INLET STEAM TEMPERATURE CONTROL DEVICE 失效
公开(公告)号：JPS61210208A
公开(公告)日：1986-09-18
申请号：JP5167285
申请日：1985-03-15
申请人： MITSUBISHI HEAVY IND LTD
发明人： TAKADA SHUHO
IPC分类号： F01L19/00
摘要： PURPOSE:To obtain quick starting of a gas turbine by monitoring the turbine inlet steam temperature at the time of plant starting and opening a temperature lowering control valve when a variation rate of the temperature approaches a predetermined steam temperature variation rate, which is under a turbine-life determining value. CONSTITUTION:Differences (steam temperature variation ranges) between a signal 1a detected by a turbine inlet steam temperature detector 1 and individual dead-time set by dead time elements 21 and 22 are obtained by individual subtractors 23 and 24. The differences between the differences obtained in above and limit values of steam temperature variation ranges set by setting devices 25 and 26 are obtained. Outputs from individual subtractors 27 and 28 are added to steam temperature variation range bias values set by setting devices 29 and 31 by using an adding machines 32 and 33. The greater one of the values thus added is selected by a maximum value detector 34 and is output to a PI control device 35. By the output of the PI control device 35, a temperature lowering control valve 4 is controlled so that it is opened via a switch 36 that is closed when the turbine inlet temperature is higher by the predetermined value than the temperature at the dead time ago.

7. 发明专利

JPS616284B2 JPS616284B2 - 失效
公开(公告)号：JPS616284B2
公开(公告)日：1986-02-25
申请号：JP4452775
申请日：1975-04-12
申请人： Mitsubishi Heavy Ind Ltd
发明人： TAKADA SHUHO , FUJIWARA TOSHIKATSU
IPC分类号： F22B35/00 , F22B35/10

8. 发明专利

JP2000056832A WHEELCHAIR INDOOR DISTRIBUTION SYSTEM 失效
公开(公告)号：JP2000056832A
公开(公告)日：2000-02-25
申请号：JP22681998
申请日：1998-08-11
申请人： MITSUBISHI HEAVY IND LTD
发明人： TAKADA SHUHO , ISHII KEI , KAWACHI MOTOKO
IPC分类号： A61G5/04 , G05D1/02
摘要： PROBLEM TO BE SOLVED: To provide the system which efficiently distributes self-traveling wheelchairs by controlling the self-traveling wheelchairs, arranged in a hospital, etc., at one place by communication according to user's requests. SOLUTION: A self-traveling wheelchair of this system is equipped with a current position detection part, a course travel part, a current position communication part, etc., a user terminal device is equipped with an input part for wheelchair allocation request data from users, a communication part, an output device, etc., and a wheelchair control unit 3 which performs centralized control over them is equipped with a building map 34 stored with travelable course in the building, a position information storage part 35 which stores the current positions of the self-traveling wheelchairs, a communication part 31 which enables transmission and reception between the self-traveling wheelchairs and user terminal devices, a wheelchair allocation determination part 32 which determines the self-traveling wheelchair at the shortest distance to a user terminal device among self-traveling wheelchairs in ready states as a wheelchair to be allocated according to the information stored in the building map 34 and position information storage part 35, and a course determination part 33 which determines the course of the shortest distance between the self-traveling wheel and user terminal device.

9. 发明专利

JPH04251309A BOILER STEAM TEMPERATURE CONTROLLER 失效
公开(公告)号：JPH04251309A
公开(公告)日：1992-09-07
申请号：JP62691
申请日：1991-01-08
申请人： MITSUBISHI HEAVY IND LTD
发明人： TAKADA SHUHO , IWAI MASATAKA
IPC分类号： F22B35/00 , F22B37/40 , G05B11/32 , G05B13/02 , G05D23/00 , G05D23/19 , G05D23/24
摘要： PURPOSE:To control a 3rd damper to suitably cooperate a 1st damper or a 2nd damper in a boiler steam temperature controller which has three flow passages and controls the steam temperatures of heat exchangers respectively provided in the 1st and 2nd flow passages. CONSTITUTION:This boiler steam temperature controller is provided with 1st and 2nd temperature sensors 1 and 10 which detect the steam temperature of 1st and 2nd heat exchangers, 1st and 2nd temperature setters 2 and 11, 1st and 2nd subtracters 3 and 12 which calculate the differences between the outputs of the sensors 1 and 10 and setters and 11, absolute value devices 4 and 13 which obtain the absolute values of the subtracter 3 and 12, differentiators 5 and 14 which differentiate the absolute values of the devices 4 and 13, and a decision arithmetic means which performs arithmetic operations following a prescribed control rule by inputting the signals of the devices 4 and 13 and differentiators 5 and 14 and outputs operated results to the 3rd damper device. The 3rd damper is controlled to appropriately cooperate the control of the 1st or 2nd damper in such way. Therefore, the steam temperature controlling performance of this controller is improved.

10. 发明专利

JPH04175401A STEAM TURBINE OUTPUT CONTROLLER 失效
公开(公告)号：JPH04175401A
公开(公告)日：1992-06-23
申请号：JP30321390
申请日：1990-11-08
申请人： MITSUBISHI HEAVY IND LTD
发明人： HIROE TAKAHARU , TAKADA SHUHO , HIRATA DAISAKU , MORITA AKANE
IPC分类号： F01D15/10
摘要： PURPOSE:To make a control amount of a generator output slow in response to a change in the opening of a governor to restrain errors in the generator output and quickly perform the output control by the use of the generator output by utilizing plant condition amounts such as the opening of the governor, pressure in a steam reheater, etc. CONSTITUTION:An integration feedback means 2 inputs an output setting value 29 and generator output signal 20 to a difference calculator 6 to calculate a deviation from the set value of the generator output. The integration feedback signal 14 makes the generator output signal 20 coincide with an output set value signal 29. A condition feedback means 3 consisting of counters 9-11 and an adder 12 inputs an A valve opening signal 17, B valve opening signal 18 and steam reheater pressure 19 of conditional amounts of a plant. A condition feedback signal 15 compensates for the delay of the generator output slow in response to provide a conforming property and safety. Further, an adding means 4 consisting of an adder 13 adds said both feedback signals 14, 15 to output a governor opening commanding signal 16 which controls the opening of a governor 36.

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