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1. 发明专利

JPS55114858A GAS TURBINE FUEL CONTROLLING SYSTEM 失效
公开(公告)号：JPS55114858A
公开(公告)日：1980-09-04
申请号：JP2288479
申请日：1979-02-26
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： UEMATSU MASAYUKI , SAITOU TADAYOSHI , ADACHI SHIGEKI , AMAHI YASUHIRO
IPC分类号： F02C9/36 , F02C9/32
摘要： PURPOSE:To repress velocity increase in a gas turbine as well as to make it possible to perform favorable control for responsibility to the velocity at the time of interrupting the load by making fuel demand signal in such a way that at the time of interrupting the load, fuel control signal from a velocity/load controller is divided by velocity. CONSTITUTION:In the structure that opening degree of a bypass valve 8 juxtaposed to a fuel pump 9 to supply fuel to a gas turbine driven by another gas turbine (unshown in the figure) is controlled in response to deviation between fuel flow rate demand signal GD and fuel flow rate signal G1 by a detector 10, fuel control signal GC obtained from outputs of a start-up controller 1, a temperature controller 2 and a velocity/load controller 3 through a minimum value selector 4 is conducted through a change-over switch 11 to a subtractor 12. In the subtractor 12, the signal GC is subtracted by output of velocity detecting signal, whose output is added with output from a subtractor 5 by an adder 14. The output obtained by this is made to be added to a subtractor 15 for taking deviation of fuel flow rate.

2. 发明专利

JPS55114859A GAS TURBINE FUEL CONTROLLER 失效
公开(公告)号：JPS55114859A
公开(公告)日：1980-09-04
申请号：JP2288579
申请日：1979-02-26
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： UEMATSU MASAYUKI , SAITOU TADAYOSHI , IWAMIYA KENJI
IPC分类号： F02C9/36 , F02C9/32
摘要： PURPOSE:To properly maintain controls of fuel flow rate in spite of the number of rotation in a gas turbine by providing a means of compensating gains of a regulator to regulate opening degree of a bypass valve juxtaposed to a fuel pump in inverse proportion to the number of rotation in the gas turbine. CONSTITUTION:A fuel controller controls opening degree SBV of a bypass valve 3 by a proportional integral controller 2 so that fuel flow rate signal GL from a fuel flow rate detector 5 can correspond to fuel flow rate demand signal GD from a gas turbine controller 1. Here, additional installation includes a turbine velocity detector 7, and a subtractor 6 to subtract fuel flow rate deviating signal DELTAG from output of this detector 7. And opening degree of the bypass valve 3 is controlled by output of the controller 2 in response to output of the subtractor 6. By doing so, gains of opening degree control in a split valve 3 compensate DELTAG which is input of the controller 2 so as to be inversely proportional to the number of rotation in the turbine, to constantly stabilize loop gains.

3. 发明专利

JPS55114857A GAS TURBINE FUEL FLOW RATE CONTROLLER 失效
公开(公告)号：JPS55114857A
公开(公告)日：1980-09-04
申请号：JP2288379
申请日：1979-02-26
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SAITOU TADAYOSHI , UEMATSU MASAYUKI
IPC分类号： F02C9/36 , F02C9/32
摘要： PURPOSE:To make it possible to control stable fuel flow rate by providing a means of compensating the opening degree of a bypass valve juxtaposed to a fuel pump like feed forward through fluctuations of pressure on the inlet side and pressure on the outlet side in the fuel pump. CONSTITUTION:A fuel flow rate controller to a combustor 2 provided on a gas turbine 6 multiplies velocity signal N from a velocity detector 10 on fuel control signal SD by a main controller 9 with use of a multiplier 11 in a search for fuel flow rate demand signal GD according to which opening degree of a bypass valve 4 is controlled. In this case, the constitution provides pressure detectors 15, 16, a subtractor 17 to input those outputs, and an imperfect differentiator 18 to generate precedent opening degree compensating signal SF for precedently compensating opening degree of a valve 4 at the time of fluctuating from the outputs. Besides, additional provision includes a constant setter 19 to set 1 for effectively working the compensating signal SF, a subtractor 20, and a divider 21 for seeking for opening degree demand signal SC.

4. 发明专利

JPS5964484A Drive in case of maintenance of elevator 失效
标题翻译：驱动电梯维护的情况
公开(公告)号：JPS5964484A
公开(公告)日：1984-04-12
申请号：JP17101082
申请日：1982-10-01
申请人： Hitachi Ltd , Hitachi Elevator & Service
发明人： ONODA YOSHIMITSU , YAMAMOTO SATOSHI , SAITOU TADAYOSHI , KOMATSU KOUICHI , SAKATA YOSHIO , ARAKAWA SHIGERU
IPC分类号： B66B5/00 , B66B1/28 , B66B1/30 , B66B1/46 , B66B1/48 , B66B5/06 , B66B5/10

5. 发明专利

JPS576203A BOILER STEAM TEMPERATURE CONTROL SYSTEM 失效
公开(公告)号：JPS576203A
公开(公告)日：1982-01-13
申请号：JP7779980
申请日：1980-06-11
申请人： HITACHI LTD
发明人： SATOU YOSHIO , SAITOU TADAYOSHI , NOMURA MASAHIDE
IPC分类号： F22B35/14 , F22B35/00 , F22G5/00 , F22G5/02 , G05B13/00 , G05B13/04

6. 发明专利

JPS56165806A BOILER STEAM TEMPERATURE CONTROL SYSTEM 失效
公开(公告)号：JPS56165806A
公开(公告)日：1981-12-19
申请号：JP6882880
申请日：1980-05-26
申请人： HITACHI LTD
发明人： SATOU YOSHIO , NOMURA MASAHIDE , SAITOU TADAYOSHI
IPC分类号： F22B35/00 , F01K13/00 , F22G5/02

7. 发明专利

JPS5684648A CONTROLLING SYSTEM FOR TEMPERATURE OF OUTLET OF COAL MILL 失效
公开(公告)号：JPS5684648A
公开(公告)日：1981-07-10
申请号：JP16039579
申请日：1979-12-12
申请人： HITACHI LTD
发明人： SAITOU TADAYOSHI , SATOU YOSHIO
IPC分类号： B02C17/18 , B02C17/00 , B02C25/00

8. 发明专利

JPS5670853A CONTROLLING SYSTEM FOR TEMPERATURE OF OUTLET OF COAL MILL 失效
公开(公告)号：JPS5670853A
公开(公告)日：1981-06-13
申请号：JP14713479
申请日：1979-11-15
申请人： HITACHI LTD
发明人： SAITOU TADAYOSHI , SATOU YOSHIO
IPC分类号： F23K1/04 , B02C15/00 , B02C17/00 , B02C25/00

9. 发明专利

JPS5557628A CONTROL DEVICE OF GAS TURBINE 失效
公开(公告)号：JPS5557628A
公开(公告)日：1980-04-28
申请号：JP12850378
申请日：1978-10-20
申请人： HITACHI LTD
发明人： ADACHI SHIGEKI , SAITOU TADAYOSHI , AMAHI YASUHIRO , TANI YUKIZUMI
IPC分类号： F02C9/28 , F02C9/26 , F02C9/54
摘要： PURPOSE:To improve the efficiency by exhaust air temperature by making the efficiency itself a control object on controlling the inlet guide vane provided at the compressor of gas turbine. CONSTITUTION:The optimum efficiency in certain requested load fed from the load request signal generator 14 of the dynamo is obtained by the function generator 15. On the other hand, the efficiency is obtained by the function generator 18 from both signals given by the dynamo power converter 16 and fuel flow converter 17. The difference between the setting value and the actual value of efficiency is computed by the proportional integrator 10 to produce an inlet guide vane position signal. The greater value of both the said signal and a signal of the lower limit position setter 19 is obtained by the greater value priority circuit 20. The deviation between the said value and the actual inlet guide vane position is proportionally integrated to control the position of guide vane.

10. 发明专利

JPS5512257A OPERATING GAS TURBINE 失效
公开(公告)号：JPS5512257A
公开(公告)日：1980-01-28
申请号：JP8516078
申请日：1978-07-14
申请人： HITACHI LTD
发明人： TSUJI YUKIROU , SAITOU TADAYOSHI , MEGURO KAZUTOSHI
IPC分类号： F02C9/28 , F02C9/26
摘要： PURPOSE:To make the promotion of prolongation of the service life, with a surge of fuel suppressed and a thermal shock to the turbine limited to within the tolerance, by suppressing upper and lower limit to within the allowable value of maximum and minimum flow rate of the fuel further by performing the operation in a value of permissible change. CONSTITUTION:Output value, with a low value preference operated from a low value preference circuit 31, is inputted to an upper-lower limiter 320. The limiter 320,for the output value of the circuit 31 if being in the maximum or minimum flow rate permissible value, outputs the output value of the circuit 31 as the value itself, and if exceeding the permissible value, outputs the then permissible value. To a deviation operator 321 are inputted an output of the limiter 320 and a fuel set value at the time of preceding sampling read out from a memory 322. To a multiplexer 325 are being inputted the output of the limiter 320 and the result, deriving from an addition or subtraction of change rate permissible value epsilon0 to or from the preceding set value read out from the memory 322, with either input outputted by a comparison result of change rate comparator circuit 323. The change rate permissible value epsilon0 has been inputted to the comparator circuit 323 as an input, so with the comparison performed between the both.

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