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1. 发明专利

DE2938291A1 未知
公开(公告)号：DE2938291A1
公开(公告)日：1980-04-03
申请号：DE2938291
申请日：1979-09-21
申请人： HITACHI LTD
发明人： SHIMIZU NORIO , ODAWARA YOZI , HITACHI IBARAKI , MAZAKI YASUNORI
IPC分类号： C02F3/12 , C02F3/34 , C12K3/00 , C02C1/02 , C02C5/10
摘要： The invention relates to an improvement of the floc-formation property of activated sludge contained in waste water. A waste water treatment process comprises steps culturing a novel strain-Alcaligenes faecalis HRL-1 - and adding the cultured cells to to-be-treated waste water.

2. 发明专利

JPH01184513A PRESSURE CONTROLLER FOR SELF-ACTUATED PRESSURE REGULATING VALVE 失效
公开(公告)号：JPH01184513A
公开(公告)日：1989-07-24
申请号：JP833088
申请日：1988-01-20
申请人： NAT SPACE DEV AGENCY , HITACHI LTD
发明人： TAKANO AKIRA , SAKAZUME NORIO , NOMA MASARU , FUJII YUJI , MAZAKI YASUNORI
IPC分类号： G05D16/16
摘要： PURPOSE:To simplify maintenance by using a self-actuated pressure regulating valve, and setting the secondary side pressure of the self-actuated pressure regulating valve automatically by a remote operation. CONSTITUTION:The pressure control method of the self-actuated pressure regulating valve 1 is performed in such a way that fluid from a conduit 11 flows from a conduit 12 to the valve 1, and pressure is reduced to the secondary side pressure, and it is supplied from a conduit 13 to a requesting opponent. And a pressure transmitter 3 which detects the pressure in the inside of a connecting pipe 15 connected to the pressure control part of the regulating valve 1 and transmits a signal to a pressure indication controller 6, automatic regulating valves 4-5 provided at the air releasing side of connecting pipes 14-15 for primary side pres sure, and a controller 6 are provided. The signal corresponding to preset pressure is transmit ted by the controller 6, and the automatic regulating valves 4-5 are operated, then, the auto matic setting of the pressure functioning on the pressure control part of the self-actuated pressure regulating valve 1 is performed. Also, the automatic regulating valves 4-5 performs the opening/closing operation of the signal of the controller 6 in a split range. Therefore, it is possible to set the secondary side pressure of the regulating valve 1 by changing the preset pressure of the controller 6 at a remote operating part.

3. 发明专利

JPS6175100A Irradiator for false solar ray in space enviromnent test apparatus 失效
标题翻译：空间环境测试装置中的太阳辐射雷达
公开(公告)号：JPS6175100A
公开(公告)日：1986-04-17
申请号：JP19463784
申请日：1984-09-19
申请人： Hitachi Ltd
发明人： AOKI DAIYA , MAZAKI YASUNORI , IMANI KAZUTAKE
IPC分类号： B64G7/00
CPC分类号： B64G2007/005

4. 发明专利

JPS57150401A METHOD AND DEVICE FOR PREVENTING SHAFT RUNOUT OF CENTRIFUGAL THIN FILM TYPE TREATING MACHINE FOR HIGH- VISCOSITY LIQUID 失效
公开(公告)号：JPS57150401A
公开(公告)日：1982-09-17
申请号：JP3530581
申请日：1981-03-13
申请人： HITACHI LTD , HITACHI SANKI ENG
发明人： SUMIYA TOMOAKI , FUJIMOTO MASARU , FUJII YUUJI , MAZAKI YASUNORI , TERAYAMA NORITAKA
IPC分类号： B01D1/22
摘要： PURPOSE:To prevent shaft runout, to perform high vacuum operation and to prevent shaft runout without requiring any lubricant and sealing liquid by applying centripetal force to rotary vanes by means of the high viscosity liquid itself which is treating liquid. CONSTITUTION:The high-viscosity liquid supplied to a body 1 forms a liquid film 16 on the inside wall surface of said body, and forms a liquid well 15 between the body 1 and the leading end parts of rotary vanes 6a. Hereupon, the forces such as unstable load in the radial direction owing to the revolutions of the vanes 6a, eccentric load and shaft runout occuring receive reaction from the wall 15 and the liquid film 16 on the inside wall surface of the body 1 and apply centripetal force upon the vanes 6a and therefore the vanes 6a can maintain stable revolutions without causing shaft runout, etc. As a result, the need for lubricating liquid for the lower bearing 5 provided in the body 1 is eliminated, the contamination of the treating liquid owing to the leakage, etc. of the lubricating liquid is prevented and the operation in a high vacuum is made possible.

5. 发明专利

JPS56124488A WATER PURIFIER 失效
公开(公告)号：JPS56124488A
公开(公告)日：1981-09-30
申请号：JP2656880
申请日：1980-03-05
申请人： HITACHI LTD
发明人： MAZAKI YASUNORI
IPC分类号： C02F1/28 , C02F1/46 , C02F1/461
摘要： PURPOSE:To purify water by decomposing organic matter adsorbed with an activated charcoal filled between anodes and cathodes with oxygen generated through electrolysis of water using a group of electrodes which are made up of a plurality of the anodes and the cathodes energized alternately arranged. CONSTITUTION:Water fed into a packed tower 1 from an inlet 9 is electrolysed during the passage through a group of electrolytes and oxygen gas thus generated ascends and trapped with a baffle plate 6. The oxygen gas thus trapped runs up to an upper stage through a gas withdrawing port 7 and passes through an activated charcoal layer 5 to decompose organic compounds absorbed from water. The water purified flows to an upper group of electrodes 2 through a passage 8, repeatedly purified as mentioned above and then, withdrawn from an outlet 10. On the other hand, the oxygen gas is taken out from the withdrawing port 7 without passing through the upper group of electrodes 2.

6. 发明专利

JPS5698695A VOLUMEEDECREASING METHOD OF RADIOACTIVE LIQUID WASTE 失效
公开(公告)号：JPS5698695A
公开(公告)日：1981-08-08
申请号：JP59480
申请日：1980-01-09
申请人： HITACHI LTD
发明人： MAZAKI YASUNORI
IPC分类号： G21F9/08 , G21F9/00

7. 发明专利

JPH11226560A METHOD AND DEVICE FOR TREATING WASTE LIQUID OR WASTE WATER 失效
公开(公告)号：JPH11226560A
公开(公告)日：1999-08-24
申请号：JP3086698
申请日：1998-02-13
申请人： HITACHI LTD , HITACHI KASADO ENG CO LTD
发明人： MAZAKI YASUNORI , UMEDA TAKAYUKI , YONEYAMA KENTARO , NOMURA SEIJI
IPC分类号： C02F1/04
摘要： PROBLEM TO BE SOLVED: To decrease a biological oxygen demand(BOD) in a waste liquid with a high BOD without using a microorganism treatment, by rectifying the waste liquid by a rectifying column, drawing out organic substances having boiling points lower than water from the column top with water, and discharging a bottom liquid having a low BOD from the column bottom. SOLUTION: A condensate of steam used for heating in a heater 6 is supplied to an intermediate part of a rectifying column 16 by a second condensate pump 15. In the rectifying column 16, alcohols of low boiling points are driven out from a column bottom side to move to a column top side by steam injected into the column bottom, alcohols or the like is discharged from the column top of the rectifying column 16 with moisture as steam to condense in a column top condenser 17, and refluxed to the column top of the rectifying column 16 through a distillate tank 18. As a high alcohol liquid is refluxed, the alcohol content at the top column becomes higher. When the alcohol concentration of the distillate reaches the target one, a part of the distillate is collected to be recovered as a crude alcohol. The bottom liquid discharged from the bottom of the rectifying column 16 contains few organic substances having lower boiling points than water, so that the BOD decreases greatly.

8. 发明专利

JPS6241068B2 失效
公开(公告)号：JPS6241068B2
公开(公告)日：1987-09-01
申请号：JP14292080
申请日：1980-10-15
申请人： HITACHI LTD
发明人： FUJII JUJI , MAZAKI YASUNORI , SUGIMOTO KUNJI
IPC分类号： F26B3/00 , B01L7/00 , F26B3/10

9. 发明专利

JPS56114800A CENTRIFUGAL THIN FILM EVAPORATOR 失效
公开(公告)号：JPS56114800A
公开(公告)日：1981-09-09
申请号：JP1668980
申请日：1980-02-15
申请人： HITACHI LTD
发明人： TAKAMURA YOSHIYUKI , MAZAKI YASUNORI , CHINO KOUICHI , HIRANO MIKIO
IPC分类号： B01D1/22 , C02F1/08 , G21F9/00 , G21F9/08

10. 发明专利

JPS5597290A CONTROL FOR WASTE WATER TREATMENT OF ACTIVATED SLUDGE 失效
公开(公告)号：JPS5597290A
公开(公告)日：1980-07-24
申请号：JP297879
申请日：1979-01-17
申请人： HITACHI LTD
发明人： MAZAKI YASUNORI , MIYAZAKI KAZUO
IPC分类号： C02F3/12
摘要： PURPOSE:To keep the supply of BOD almost constant by regulating the amount of waste water coming into aeration tank according to the measured value of dissolved oxygen concentration in the aeration tank. CONSTITUTION:Waste water is introduced through the flow meter 2 and the flow regulating valve 3 into the aeration tank 4 from the supply pipe 1, and air is sent into the aeration tank 1 from the blower 5 in order to supply oxygen required by activated sludge. Treated water is introduced through the pipe 6 into the separtion tank 7 and activated sludge separated is discharged from the overflow pipe 8, where the separated activated sludge is drawn out by the sludge pump 9 and its part is sent back in a difinite amount to the tank 4 by operating the flow regulating valve 12 by the flow meter 10 and the flow rate indicating regulator 11. The tank 4 is provided with the dissolved oxygen meter 13 and the flow regulating valve 3 is operated by the dissolved oxygen concentration indicating regulator 14 following the meter 13 so as to keep the dissolved oxygen concentration constant and the amount of incoming waste water is controlled. In this case, excess sludge is drawn out by operating the regulating valve 17 by the sludge interface indicating regulator 16 in such a wat that the sludge interface is kept constant by the sludge interface meter 15 not to change the concentration of returned slduge.

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