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1. 发明专利

JPH0565819A ENGINE EXHAUST EMISSION CONTROL SYSTEM 失效
公开(公告)号：JPH0565819A
公开(公告)日：1993-03-19
申请号：JP22714091
申请日：1991-09-06
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： HONCHI AKIO , OGAWA TOSHIO , KURODA OSAMU , YAMASHITA HISAO , MIYADERA HIROSHI , MATSUO YOSHIO
IPC分类号： F01N3/02 , F01N3/20 , F01N3/24
摘要： PURPOSE:To provide an engine exhaust emission control system which catches hydrocarbon exhausted in large amount when engine is started, upstream from a precatalyst temporarily. CONSTITUTION:A collision plate 6 which collides with exhaust is provided in an exhaust passage 2 upstream from a precatalyst 4 and a recessed section 5 which retains water content caught by the collision plate 6 is provided under the collision plate 6 so that liquid-like water content generated in the exhaust is retained temporarily. Consequently, it is possible to suppress adhesive of liquid-like water content to a precatalyst 4, allow temperature of precatalyst 4 to rise rapidly, and obtain high hydrocarbon purification rate immediately after an engine 1 is started.

2. 发明专利

JPS6054713A ELECTRODIALYSIS TANK FOR OPERATION AT HIGH TEMPERATURE 失效
公开(公告)号：JPS6054713A
公开(公告)日：1985-03-29
申请号：JP16046483
申请日：1983-09-02
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： KURODA OSAMU , TAKAHASHI SANKICHI , KOIKE SEIJI
IPC分类号： B01D61/50
摘要： PURPOSE:To provide the titled dialysis tank protected from deformation of membrane and leakage of liquid by operation at high temp. by interposing a film-shaped construction having higher rigidity than an ion exchange membrane of the device and superior heat resistance between the ion exchange membrane and frames of the dialysis chamber to construct a laminated construction. CONSTITUTION:A dialysis chamber of an electrodialysis tank is constructed by piling successively a cation exchange membrane 1, a film-shaped construction 20 made of a material having higher rigidity than ion exchange membranes 1, 2 and having superior heat resistance from which the parts corresponding to the communicating holes 5, 5', 6, 6' of a dialysis chamber frame 3 and the part corresponding to the dialysis chamber 4 are removed, a dialysis chamber 4 provided with a spacer 8 at its central removed part 4, a frame 3 of the dialysis chamber provided with liquid passages 7, 7' having a distributor 9 communicating the dialysis chamber to the communicating holes 6, 6', etc., another film-shaped construction 20 similar to the above described one, and an anion exchange membrane. By the above described constitution, deformation of membrane at high temp. operation, particularly, liquid at the liquid passage 7, 7' is prevented, and an electrodialysis tank exhibiting superior performance is obtd.

3. 发明专利

JPH0559937A ENGINE EXHAUST EMISSION CONTROL DEVICE 失效
公开(公告)号：JPH0559937A
公开(公告)日：1993-03-09
申请号：JP21845391
申请日：1991-08-29
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： HONCHI AKIO , OGAWA TOSHIO , WATANABE NORIKO , KURODA OSAMU , YAMASHITA HISAO , MIYADERA HIROSHI , ATAGO TAKESHI , MATSUO YOSHIO
IPC分类号： F01N3/20 , F01N3/08 , F01N3/22 , F01N3/24 , F01N3/28 , F01N13/02
摘要： PURPOSE:To quickly raise temperature of a catalyst up to activating temperature before hydrocarbon is desorbed from an adsorbent by once adsorbing unburnt hydrocarbon discharged in a large quantity at the time of starting an engine. CONSTITUTION:A catalyst 5 of high carbon monoxide combustion activation is arranged between an adsorbent 3 down the adsorbent 3 of an exhaust passage 2 and a catalyst 4 for exhaust emission control, carbon monoxide passing through the adsorbent 3 is catalytically burnt and temperature of the catalyst 4 for exhaust emission control is improved to rise and made to reach activating temperature. As the catalyst 4 for exhaust purification reaches the activating temperature before unburnt hydrocarbon starts to be desorbed from the adsorbent 3, it is possible to efficiently purify the unburnt hydrocarbon and to reduce the amount of the hydrocarbon discharged outside.

4. 发明专利

JPH01218606A OPERATION OF ELECTRODIALYSIS APPARATUS 失效
公开(公告)号：JPH01218606A
公开(公告)日：1989-08-31
申请号：JP4208488
申请日：1988-02-26
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： KURODA OSAMU , EBARA KATSUYA , TAKAHASHI SANKICHI , KOIKE SEIJI
IPC分类号： B01D61/54
摘要： PURPOSE:To keep electrode liquid always acidic as a whole so as to prevent deposition of scales by mixing the rest of cathode liquid with the whole anode liquid of an electrodialysis cell and circulating the mixture through both electrode chambers. CONSTITUTION:An electrode liquid in an electrode liquid circulation tank 6 is supplied to an anode chamber 3 equipped with an anode 2 and a cathode chamber 5 equipped with a cathode 4 of an electrodialysis apparatus 1. Part of cathode liquid is discharged out of the system through a valve 8. The rest of the cathode liquid and the whole anode liquid out of the anode chamber 3 are returned to the electrode liquid circulation tank 6 through a line 11, and an amount of salt solution corresponding to the cathode liquid discharged out of the system is also supplied to the tank 6 through a line 12. The polarities the electrodes are changed after a certain duration of the aforementioned condition. When the polarity is changed, the cathode liquid is discharged by setting a valve 9 open. It is possible, therefore, to prevent scale deposition in the electrode chambers of the electrodialysis cell without using any acid at all.

5. 发明专利

JPS60168504A BRINE DESALTING OPERATION IN SOLAR ENERGY POWER GENERATION ELECTRODIALYTIC APPARATUS 失效
公开(公告)号：JPS60168504A
公开(公告)日：1985-09-02
申请号：JP2472184
申请日：1984-02-13
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： KURODA OSAMU , KOSEKI YASUO , TAKAHASHI SANKICHI , KOIKE SEIJI
IPC分类号： C02F1/469 , B01D61/46 , C02F1/46 , H01L31/00
摘要： PURPOSE:To utilize the varied output of a solar cell in the operation of an electrodialytic apparatus with high efficiency, by providing a fresh water tank and an intermediate concn. tank and desalting brine in the intermediate concn. tank, when the output of the solar cell is high, so as to reach an intermediate concn. while supplying brine to the intermediate concn. tank corresponding to quantity of solar radiation to regulate a salt concn. CONSTITUTION:Water with an intermediate concn., which was desalted to the intermediate concn. in the previous day, is transferred to a fresh water tank 6 in an amount corresponding to that of fresh water formed per a day and, when the output of a solar cell is low over a predetermined time from sunrise, the water in said fresh water tank 6 is transferred to an electrodialytic apparatus 2 and desalted to obtain fresh water. Next, water with an intermediate concn. in an intermediate concn. tank 5 is recirculated to the electrodialytic apparatus 2 and desalted. Because the output of the cell shows increase inclination until the southing time of the sun, a valve 11 is opened and raw water is supplied to the intermediate concn. tank 5 and conditioned so as to enhance a salt concn. Because the salt concn. is lowered with the lowering in the output of the cell from the southing time to sunset and the max. output condition of the cell is formed automatically, water with an intermediate concn. desalted in the fresh water tank 6 in the next day is obtained.

6. 发明专利

JPS6064604A DIALYSIS CHAMBER FRAME FOR ELECTRODIALYSIS BATH 失效
公开(公告)号：JPS6064604A
公开(公告)日：1985-04-13
申请号：JP17199683
申请日：1983-09-16
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： KURODA OSAMU , TAKAHASHI SANKICHI , KOIKE SEIJI
IPC分类号： B01D61/50 , B01D61/46
摘要： PURPOSE:To improve the sealing property by assembling an electrodialysis bath with a component part of dialysis chamber frame composed of a foamed material with a temperature for thermal deformation lower than a spacer and a spacer heated into an integral body. CONSTITUTION:The status of an integral body formed when the polypropylene mesh used as a spacer is pressed onto a chamber frame of foamed polyethylene with a heating press is exemplified as follows: A) shows the status before heating, B) the intermediate stage of integration into an integral body and C) the status of complete integration. Because of the lower temperature for thermal deformation of a component part for the chamber frame 3 than that of a spacer 8, it is possible to realize the integration into a single body without spacer deformation. Foamed polyethylene and foamed polypropylene are named as a foamed material used for the dialysis chamber frame and polypropyrene, polystyrene, phenol resin, etc. as a material for spacer.

7. 发明专利

JPS6041506A ELECTRODIALIZING METHOD BY UTILIZING PHOTOVOLTAICS 失效
公开(公告)号：JPS6041506A
公开(公告)日：1985-03-05
申请号：JP14947583
申请日：1983-08-16
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： MATSUZAKI HARUMI , KURODA OSAMU , KOSEKI YASUO , EBARA KATSUYA , TAKAHASHI SANKICHI
IPC分类号： C02F1/469 , B01D61/44 , B01D61/50 , B01D61/54 , H01L31/00
摘要： PURPOSE:To utilize efficiently the energy by controlling the supply of the original water so as to make the electric resistance of an electrodialysis vessel constant on the basis of the voltage at the maximum efficiency determined when the quantity of sunlight is made constant and the electric current flowing through the electrodialysis vessel. CONSTITUTION:The output from a power generating element 1 is sent to an electrode of a one-pass electrodialysis vessel 6, and the electrodialysis such as desalting and concentration is carried out. The output current detected at a flow rate control system 7, and a flow rate control valve 8 is controlled so that the electric resistance of the electrodialysis vessel 6 may be fixed at a value smaller than the critical resistance characteristic determined by the voltage at the maximum efficiency determined when the quantity of the sunlight is made constant and the electric current flowing through the electrodialysis vessel 6 at the same time to regulate the supply of the original water.

8. 发明专利

JPS59130504A Electrodialysis device 失效
标题翻译：电子装置
公开(公告)号：JPS59130504A
公开(公告)日：1984-07-27
申请号：JP475883
申请日：1983-01-14
申请人： Babcock Hitachi Kk , Hitachi Ltd
发明人： KURODA OSAMU , KOIKE SEIJI , TAKAHASHI SANKICHI
IPC分类号： B01D61/46 , B01D61/48 , B01D61/50 , B01D61/54
CPC分类号： Y02A20/134
摘要： PURPOSE: To perform electrodialysis always near the critical current density even if the salt concn. in a desalting chamber changes by providing electrodes for detecting the voltage between ion exchange membrane groups in the operating stage of the respective electrode chambers near the ion exchange membranes of the respective electrode chambers and controlling an impressed voltage.
CONSTITUTION: An electrodialysis device 1 is formed with desalting chambers 4 and concentrating chambers 5, wherein anion exchange membranes 2 and cation exchange membranes 3 are alternately arranged. Electrode chambers 9a in which an anolyte 8a is kept flowing and electrode chambers 9b in which a catholyte 8b is kept flowing are provided, and detecting electrodes 11a, 11b consisting of platinum wires for detecting the potential difference between the ion exchange membrane groups during operation are provided. The detected voltage is conducted to a comparator 13 which is preliminarily inputted with a predetermined reference voltage 12. Said comparator inputs the voltage proportional to the difference between both voltages to a control device 14. Said device controls the voltage outputted from a thyristor rectifier 15 applying the voltage between anode electrodes 10b and 10a from the device 14 whereby electrodialysis is accomplished.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：即使盐浓度高于临界电流密度，也要进行电渗析。在脱盐室中，通过设置用于检测各个电极室的离子交换膜附近的各个电极室的操作阶段的离子交换膜组之间的电压的电极，并控制外加电压来改变。构成：电渗析装置1形成有脱盐室4和浓缩室5，其中阴离子交换膜2和阳离子交换膜3交替排列。设置有阳极电解液8a保持流动的电极室9a和阴极电解液8b保持流动的电极室9b，并且由操作中检测离子交换膜组之间的电位差的铂线构成的检测电极11a，11b是提供。检测到的电压被传导到预先输入了预定参考电压12的比较器13.所述比较器将与两个电压之间的差成比例的电压输入到控制装置14.所述装置控制从晶闸管整流器15输出的电压来自装置14的阳极电极10b和10a之间的电压，从而实现电渗析。

9. 发明专利

JPH05285387A 失效
公开(公告)号：JPH05285387A
公开(公告)日：1993-11-02
申请号：JP11843992
申请日：1992-04-13
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： WATANABE NORIKO , KURODA OSAMU , YAMASHITA HISAO , HONCHI AKIO , OGAWA TOSHIO , MIYADERA HIROSHI , ATAGO TAKESHI , HAMADA IKUHISA
IPC分类号： B01D53/94 , B01J23/56 , B01J23/63 , B01J35/02 , B01D53/36
摘要： PURPOSE:To provide a catalyst for rapid oxidation of CO and hydrocarbon contained in large quantities in exhaust gas from an engine immediately after start and a method for purifying exhaust gas. CONSTITUTION:This catalyst for purification of exhaust gas supported on a carrier contains 0.5-10g/l palladium and 10-150 gel (expressed in terms of CeO2) cerium as active components. When this catalyst is disposed at the upsteam side 3 of exhaust gas 2 from an engine 1, exhaust gas contg. CO and hydrocarbon at high concn. from the engine 1 immediately after start is rapidly burned at a low temp. and a ternary catalyst 4 is rapidly heated. The CO is ignited at a low temp. and the CO and hydrocarbon can rapidly be burned at a low temp.

10. 发明专利

JPS60121290A STRUCTURE OF DIALYTIC CHAMBER FRAME IN ELECTRODIALYTIC CELL 失效
公开(公告)号：JPS60121290A
公开(公告)日：1985-06-28
申请号：JP22691483
申请日：1983-12-02
申请人： HITACHI LTD , BABCOCK HITACHI KK , NISHIKAWA GOMU KOGYO KK
发明人： KURODA OSAMU , TAKAHASHI SANKICHI , KOIKE SEIJI , YAMANAKA SEIJI , KAMIGAKI HIDEO
IPC分类号： B01D61/50 , C25B7/00 , C25B9/00
摘要： PURPOSE:To prevent the leakage of liquid from a tide-way part, and to provide a titled structure enabling the operation at high temps. by fixing a filmy structure having more excellent rigidity and heat resistance than an ion-exchange membrane on both surfaces of a notch at the end part of a dialytic chamber frame to form the tide-way. CONSTITUTION:A dialytic chamber is formed at the central notched part by providing a spacer 8, and a tide-way 7 connecting the dialytic chamber with a communicating hole 6 is formed by a notched part at the end part of the dialytic chamber frame 3 of an electrodialytic cell. The dialytic chamber frame 3 and an ion-exchange membrane are alternately arranged at said notched part at the end part to assemble the electrodialytic cell. At this time, two sheets of a filmy structure 10 having more excellent rigidity and heat resistance than said ion-exchange membrane are fixed. Said filmy structure 10 can be attached in assembling to said notched part at the end part and tightened, or bonded to the notched part at the end part with an adhesive and fixed. A material such as polycarbonate, polyester, PE, PP, polyamide, and vinylidene chloride is used as the filmy structure, and the inside of the tide-way 7 can be watched due to the transparency of the material.

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