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1. 发明专利

JPH0360011B2 失效
公开(公告)号：JPH0360011B2
公开(公告)日：1991-09-12
申请号：JP4617586
申请日：1986-03-05
申请人： HITACHI LTD
发明人： ASADA YOSHIMASA
IPC分类号： F23G5/38 , F23G5/50

2. 发明专利

JPH0312232A PROCESS OPERATION SUPPORTING SYSTEM 失效
公开(公告)号：JPH0312232A
公开(公告)日：1991-01-21
申请号：JP14680389
申请日：1989-06-12
申请人： HITACHI LTD
发明人： ASADA YOSHIMASA , WATANABE SHOJI , YODA MIKIO
IPC分类号： C02F3/12 , B01J19/00 , G08B23/00 , G08B31/00
摘要： PURPOSE:To decide the variation of processing state from a plurality of informations and support stabilized operation by dealing with the process data in the past stage-wise, controlling the data and comparing the variation of information at the present moment with the controlled data. CONSTITUTION:A plurality of kinds of process data in the past are controlled by means of the given classified items and time cycle by data control means 31 and 32. Also, controlled variable or target value corresponding to the control data is stored by storage means 50 and 60. Further, processing state is decided from the progress of the present value of process data by processing state deciding means 33 and 35. Also, the similarity of control data is retrieved from the decision information by retrieving means 39 and 40. Also, controlled variable or target value of retrieved data is indicated by an indication means 41. As a result, the variation of processing state is decided from a plurality of informations and stabilized operation can be supported.

3. 发明专利

JPS63121903A METHOD AND DEVICE FOR DISPLAY OF COMPOSITE LOOP CONTROL 失效
公开(公告)号：JPS63121903A
公开(公告)日：1988-05-26
申请号：JP26768586
申请日：1986-11-12
申请人： HITACHI LTD
发明人： ASADA YOSHIMASA , KANEDA NOBUHITO , OHATA YASUNOBU , ITO HISASHI
IPC分类号： G05B11/32 , G05B11/01 , G05B23/02
摘要： PURPOSE:To quickly, easily, and surely identify display contents without requiring artificial decision neither artificial operation by providing a composite loop controller with auxiliary display means. CONSTITUTION:Auxiliary display means indicating that data of a primary side of a composite loop or data of a secondary or more side is displayed on a pair of meters are provided to identify display contents of a pair of meters. If the primary side (temperature) is selected by an indicator lamp switching button 13, PV1 and SV1 in the primary side are displayed on a PV value meter 3 and as SV value meter 4, and a primary side mode indicator lamp 1 provided on graduation (temperature) of the primary side is lit so that it is discriminated that values of the primary side are displayed. If the secondary side (flow rate) is selected, a measured value PV2 and a set value of the secondary side (set by calculating operation of PV1 and SV1 of the primary side) SV2 are displayed on the PV value meter 3 and the SV value meter 4, and a secondary side mode indicator lamp 2 is lit.

4. 发明专利

JPS6320198B2 失效
公开(公告)号：JPS6320198B2
公开(公告)日：1988-04-26
申请号：JP9273380
申请日：1980-07-09
申请人： HITACHI LTD
发明人： ASADA YOSHIMASA , OGASAWARA HITOSHI
IPC分类号： C02F3/12

5. 发明专利

JPS62236383A SECONDARY RESISTANCE UNIT FOR WOUND-ROTOR TYPE INDUCTION MOTOR 失效
公开(公告)号：JPS62236383A
公开(公告)日：1987-10-16
申请号：JP7655786
申请日：1986-04-04
申请人： HITACHI LTD
发明人： KANEDA NOBUHITO , SAWADA TSUTOMU , ASADA YOSHIMASA
IPC分类号： H02P21/36 , H02P23/00 , H02P23/07 , H02P25/16
摘要： PURPOSE:To control the speed of a wound-rotor type induction motor by a liquid resistor from a constant speed operation by completely breaking a cushion resistor when a constant speed operation is started. CONSTITUTION:The primary side of an induction motor 4 is connected with an AC power source 5, and a liquid resistor 2, a cushion resistor 1 and a secon dary shortcircuiting unit 3 for controlling a speed are provided at the secondary side. Resistors 10-12 are provided among connecting leads for connecting cam switches 20-22 of the resistor 1 with the electromagnetic contactor contacts 40-42 of the unit 3. The resistors 10-12 prevent the cams 20-22 from being connected by the generation of an arc. When the unit 3 is disconnected, the cams 20-22 of the cam 1 of the resistor 1 are engaged to control the speed by the variation in the resistance value. The motor 4 can be freely controlled at its speed by regulating the induction resistor 2.

6. 发明专利

JPH01284396A CONTROL DEVICE FOR SEWAGE TREATMENT PROCESS 失效
公开(公告)号：JPH01284396A
公开(公告)日：1989-11-15
申请号：JP11254288
申请日：1988-05-11
申请人： HITACHI LTD
发明人： WATANABE SHOJI , BABA KENJI , YAHAGI TOSHIO , ASADA YOSHIMASA , YODA MIKIO
IPC分类号： C02F3/12
摘要： PURPOSE:To effectively operate an aeration tank by determining the deviation quantity between a daily total org. contaminant quantity and a preset reference quantity and adjusting the change position of the manipulated variable of the microorganism propagation in the downflow direction of the aeration tank in accordance with the deviation quantity of a prescribed period. CONSTITUTION:A liquid mixture 10 composed of sewage 3 contg. org. contaminants and return sludge 6 is admitted into the aeration tank 1 and is stirred by air 8 from air diffusion pipes 9A-9D by which the contaminants are decomposed. The decomposed materials enter a settling basin 2. The supernatant 5 is released and the excess sludge 7 is discharged to the outside of the system. The deviation between the inflow rate of the sewage per day by a flow meter 11 calculated by a computing element 20 and the reference value of a setter 24 and the average deviation for the prescribed period are determined by a computing element 22 and a control device 26 controls the respective air flow rates by operating blast control means 38A-38C in accordance with the deviation. The deviation between the actually measured value detected by a DO meter 14 and the reference value of a setter 34 are determined by a comparator 3. A controller 36 controls the blast adjusting means 38. The aeration tank is thus effectively operated even against a seasonal change of the inflow sewage.

7. 发明专利

JPS6327932B2 失效
公开(公告)号：JPS6327932B2
公开(公告)日：1988-06-06
申请号：JP12381079
申请日：1979-09-28
申请人： HITACHI LTD
发明人： ASADA YOSHIMASA , OGASAWARA HITOSHI
IPC分类号： H02B1/00 , H02J3/00 , H02P5/74

8. 发明专利

JPS6312327A DEODORIZATION AND DENITRATION CONTROL DEVICE 失效
公开(公告)号：JPS6312327A
公开(公告)日：1988-01-19
申请号：JP15396886
申请日：1986-07-02
申请人： HITACHI LTD
发明人： ASADA YOSHIMASA , KANEDA NOBUHITO
IPC分类号： F23G5/00 , B01D53/94 , F23G5/44
摘要： PURPOSE:To carry out an effective deodorization and denitration treatment by providing an NOx detector and a temp. detector at an outlet part of a heating furnace, an an anemometer and an anemoscope near an exhaust gas tower, and by controlling the control system of gas flow passages and of treatment condition of a reaction furnace by the detected values given by the above- mentioned instruments. CONSTITUTION:The temp. of an exhaust gas is detected through a temp. detecting terminal 6 for the outlet part of heating furnace, and the operation of a denitration treatment is decided by a denitration correcting circuit 3. When a temp. of exhaust gas exceeds a set value and an NOx amount detected through an NOx detecting terminal 7 exceeds a set value of an NOx setting circuit 2, a closing command for a by-pass damper 28 of reaction tower an a starting command for an NH3 supply valve 29 and dampers 26, 27 for the inlet and the outlet of a reaction tower are issued from a denitration changeover circuit 4, and a denitration treatment is started. When a denitration treatment command is issued from a fixed direction and velocity setting circuit 1, the same denitration treatment as the above-mentioned is carried out.

9. 发明专利

JPS6260960B2 失效
公开(公告)号：JPS6260960B2
公开(公告)日：1987-12-18
申请号：JP12724480
申请日：1980-09-16
申请人： HITACHI LTD
发明人： ASADA YOSHIMASA , TSUCHA NAOTOMO , MORI SHUNJI , BABA KENJI
IPC分类号： C02F11/04

10. 发明专利

JPS62206314A MULTI-STAGE INCINERATOR EQUIPMENT 失效
公开(公告)号：JPS62206314A
公开(公告)日：1987-09-10
申请号：JP4617586
申请日：1986-03-05
申请人： HITACHI LTD
发明人： ASADA YOSHIMASA
IPC分类号： F23G5/38 , F23G5/50
摘要： PURPOSE:To be able to reduce fuel consumption and carry out incinerating treatment effectively by a method wherein exhaust valves are installed at one or several stages locating above set burning stages and actual burning stages are detected and when the actual burning stages locate above the set burning stages, exhaust valves are operated. CONSTITUTION:Exhaust holes 22a, 22b are bored at the side wall of the fifth and sixth stages of an incinerator 1 and exhaust valves 23A, 23B are connected to the exhaust holes 22a, 22b through pipes. A fuel control valve 13 is controlled in such an opening where the temp. of set burning stages becomes the most optimum burning temp. in a set value by a thermometer 17. The temperatures of the three stages as drying zones and four to six stages as burning zones are detected by temp. detectors 7A-7D. Temperature T3-T6 detected by the temp. detectors 7A-7D are input into a judging circuit 18 for burning stages which detects actual burning stages and provides the detected temp. value T6 at the sixth stage in the set burning stages to a controller 17. The circuit 18 supplies information that the detected burning stages belong to which stages to a valve driving circuit 24 and also makes and breaks contacts 8A, 8B after judging whether the incinerator 1 is in preparation for burning or not.

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