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1. 发明专利

JPH0663302A BLADE FITTING STRUCTURE FOR CENTRIFUGAL THIN FILM EVAPORATOR 失效
公开(公告)号：JPH0663302A
公开(公告)日：1994-03-08
申请号：JP22121892
申请日：1992-08-20
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： FUJIMOTO MASARU , NOMURA SEIJI , AKAANA TASUKE
IPC分类号： B01D1/22
摘要： PURPOSE:To reduce the deformation of a pin and to strongly fix the pin be fixing the bisected boss of a blade to the pin fitted to a support ring on both sides of the support ring. CONSTITUTION:The boss is bisected and the blade 7 is fitted to the support ring 5 fixed to a rotation axis by the pin 1, a sleeve 2, a washer 3, a nut 4 and a locking nut 12. Force applied to the tip of the blade 7 is transmitted to the sleeve 2 from the boss further transmitted to the pin 1 and received by the support ring 5. In such a case, since the blade 7 is made of a two-point support system, the force transmitted to the pin 1 is distributed to reduce the deformation of the pin 1. Therefore, the fitting structure has the effect for decreasing the wear of the sleeve 2 and boss 6. Further, stepped pins are not required and ordinary pins are used.

2. 发明专利

JPH03135401A CENTRIFUGAL FILM EVAPORATOR 失效
公开(公告)号：JPH03135401A
公开(公告)日：1991-06-10
申请号：JP27169789
申请日：1989-10-20
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： NOMURA SEIJI , KANEKIYO HIROSHI , FUJIMOTO MASARU , AKAANA TASUKE , ISHIYAMA YOSHIO
IPC分类号： B01D1/22
摘要： PURPOSE:To flash-vaporize a highly adhesive liq. by extending an impeller capable of sending a gas-liq. mixture downward by its rotation above a raw material inlet. CONSTITUTION:An impeller 13 radially fixed to a rotating shaft 12 is provided in a shell 11, and a minute gap is furnished on the inner wall of the shell 11 and at the tip of the impeller 13. The impeller 13 is extended above the raw material supply port 10 provided on the side surface of the shell 11 to push down the supplied liq. to be treated and vapor to the lower part of the shell 11 by the impeller 13. Namely, since the fine droplets and vapor generated by flash vaporization at the supply port 10 are returned to the lower side, the deposition on the wall of an evaporator above the shell 11 and upper lid 17 is prevented, and a highly adhesive liq. is flash-vaporized.

3. 发明专利

JPH097988A PLASMA TREATING APPARATUS 失效
公开(公告)号：JPH097988A
公开(公告)日：1997-01-10
申请号：JP15299295
申请日：1995-06-20
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： TAKEI HIDENORI , KAWAHARA HIRONORI , FUJIMOTO MASARU , KAYANO JUNICHI
IPC分类号： H01L21/304
摘要： PURPOSE: To preventing the shaving of the interior of a plasma generator and reduce the secular change. CONSTITUTION: The interior of a plasma generator is coated with a metal 31 having a low sputtering ratio or other material 51 than the metal to form a constitution which prevents the shaving of the interior of the generator. This suppresses the secular change caused by the shaving of the interior of the generator.

4. 发明专利

JPH04193301A CENTRIFUGAL THIN FILM EVAPORATOR 失效
公开(公告)号：JPH04193301A
公开(公告)日：1992-07-13
申请号：JP32269790
申请日：1990-11-28
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： NOMURA SEIJI , UMEMOTO KOSHI , FUJIMOTO MASARU , ISHIYAMA YOSHIO , AKAANA TASUKE
IPC分类号： B01D1/22
摘要： PURPOSE:To easily form a fillet of a liquid film and to attain a uniform concentration by providing blades attached in the direction to which the phase is lagged such that the angle between an agitating blade and an inner wall of the body is =0 deg.. CONSTITUTION:A solution introduced from a raw material supply port 8 forms a thin film with a distributor 11 and is transported to a heat exchanger wall 1. Here, the liquid film is accelerated the evaporation and it becomes highly viscous. A high viscosity of the solution is scrubbed off from a heat exchanger wall with the rotating blades 3 and a piled lump. e.g. a fillet is produced. While the fillet is condensed, it is discharged to an outside of the line. At this time, the blade has an acute angle of =0 deg. in the direction to which the phase is lagged against the rotating direction. Thus, the fillet is easily formed as a thin liquid, so the uniform condensation is attained.

5. 发明专利

JPH03272396A LUBRICATING DEVICE FOR VACUUM VAPORIZING DEVICE 失效
公开(公告)号：JPH03272396A
公开(公告)日：1991-12-04
申请号：JP6713890
申请日：1990-03-19
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： FUJIMOTO MASARU , FUJII ISAMU , NOMURA SEIJI
IPC分类号： F16N7/38
摘要： PURPOSE:To use a single lubricating device in common for both a shaft seal part and a lower bearing by mounting a pressure uniformizing nozzle on one tank, interconnecting the tank and a vacuum generating device through a piping, and independently feeding lubricating oil from the tank to the shaft seal part and the lower bearing of a vacuum vaporizing device for circulation. CONSTITUTION:Lubricating oil in a tank 1 is fed to a shaft seal part 8 through a check valve 13 and a flow meter 7 with the aid of a pump 3 and recovered to the tank 1 through a cooler 12 and a pressure regulating valve 11. The lubricating oil flowing through the flow meter 17 is fed through a pressure regulating valve 18 to a lower bearing 9 and recovered to the tank 1 through a piping 19. A safety valve 5 is located for the purpose of protection of a pump, regulation of a flow rate can be carried out by means of a regulating valve 6. A return piping 19 is connected to a different vacuum tank, and the tank 1 is used in an atmospheric pressure or a pressurizing state without interconnecting a pressure uniformizing nozzle 10 and a vacuum generating device.

6. 发明专利

JPH04131593A IN-CAN BEARING LUBRICATING METHOD 失效
公开(公告)号：JPH04131593A
公开(公告)日：1992-05-06
申请号：JP24759390
申请日：1990-09-19
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： FUJIMOTO MASARU , NOMURA SEIJI
IPC分类号： F16N7/14
摘要： PURPOSE:To keep processing liquid in a can from staying inside a bearing so as to prevent the generation of defective lubrication by forming such structure that lubricating liquid supplied from a tank enters from the upper side of the bearing and is taken off from the lower side of the bearing. CONSTITUTION:Lubricating liquid is led into a lubricating liquid inlet 8 from a tank 1 by a pump 2 through a flow meter 3 and a pipeline 4, flows from the upstream side to the downstream side of a housing 11, reaches a lubricating liquid outlet 9 through a bearing 10, and is returned to the tank 1. through a sight glass 5. Processing liquid in a can passes between the housing 11 and a shaft 12 and enters into the bearing 10 through the gap of an oil seal 13, but flows together with the lubricating liquid so as to be led to the lubricating liquid outlet 9 and returned to the tank 1. Since the tank 1 is provided with a partition wall 16, this processing liquid is discharged outside a system through a drain valve without being mixed with fresh lubricating liquid.

7. 发明专利

JPH02284771A JOINT STRUCTURE FOR TITANIUM CLAD STEEL 失效
公开(公告)号：JPH02284771A
公开(公告)日：1990-11-22
申请号：JP10445689
申请日：1989-04-26
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： FUJII ISAMU , FUJIMOTO MASARU , NOMURA SEIJI , OKAMOTO NAOTOMO
IPC分类号： B23K9/23 , B23K9/00 , B23K9/028 , B23K9/28 , B23K33/00 , B23K103/16 , B23K103/18
摘要： PURPOSE:To eliminate the need for a flange joint and to make a vessel light in weight by providing ring grooves on a groove part of a circular joint of Ti clad steel, inserting Ti filler plates thereinto and joining Ti lining material to a clad member with the Ti filler plates as backing plates. CONSTITUTION:Shell plates are clad steel consisting of mild steel base metals 1 and Ti cladding material 13 and subjected to longitudinal welding and formed cylindrical after the Ti cladding material 13 is formed on the inside. The groove for circumferencial butt welding between shell plates, and the annular groove for embedding the Ti embedding plate 5 and the embedding plate 3 made of arbitrary metal are machined at the end part of the barred plate at the same time. The welding is first performed for the mild steel weld zone 2 of the mild steel base metals 1 and then, the annular Ti filler plates 5 whose circumferences are divided arbitrarily are inserted respectively into the ring grooves on both sides on the inside Ti embedding part. Further, the filler plate 3 of the optional material is embedded in intermediate space and the surface there of is covered with the Ti lining material 4 and both sides are joined by Ti welding 6.

8. 发明专利

JPH02160002A CENTRIFUGAL THIN FILM EVAPORATOR 失效
公开(公告)号：JPH02160002A
公开(公告)日：1990-06-20
申请号：JP31390488
申请日：1988-12-14
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： NOMURA SEIJI , UMEMOTO KOSHI , FUJIMOTO MASARU , ISHIYAMA YOSHIO
IPC分类号： B01D1/22
摘要： PURPOSE:To concentrate a high-viscosity material with high heat-transfer efficiency by bending the tip of an impeller backward with respect to the rotating direction, dividing the tip into plural sections in the direction of a shaft and forming the liq. delivery part and liq. agitating and mixing part to each section. CONSTITUTION:The impeller 3 is radially fixed to the rotating shaft 2 piercing the inside of a cylindrical or conical shell 1, and a liq. to be treated 14 supplied into the shell 1 and deposited on the inner wall of the shell by the impeller 3 to form a thin film. The tip of the impeller 3 is bent backward with respect to the rotating direction, and divided into plural sections in the direction of the shaft 2. The liq. delivery part 10 and the liq. agitating and mixing part 11 are formed on each section. As a result, the high-viscosity material is concentrated with high heat-transfer efficiency regardless of a decrease in the centrifugal force.

9. 发明专利

JPH0199601A CENTRIFUGAL FILM EVAPORATOR 失效
公开(公告)号：JPH0199601A
公开(公告)日：1989-04-18
申请号：JP25371987
申请日：1987-10-09
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： NAKAMOTO HIDEKAZU , KANBARA HIDEAKI , OKUNO SUMIO , FUJIWARA KIYOSHI , FUJIMOTO MASARU
IPC分类号： B01D1/22
摘要： PURPOSE:To improve the evaporation performance of the title centrifugal film evaporator by forming the rotary vane of the evaporator from a thin sheet to lighten the vane and to reduce the driving power, and uniformizing the clearance distribution in the axial direction between the inner wall surface of the evaporator body and the vane. CONSTITUTION:A film is formed on the inner wall surface of the cylindrical evaporator body 8 by the rotary vane 7 set in the body 8 to evaporate and concentrate a liq. The vane 7 is formed by radially combining the vane member consisting of plural thin sheets. A driving shaft 10 and a non-driven shaft 11 are joined to both ends of the vane 7 in the longitudinal direction. Namely, since the vane of the evaporator can be lightened in this way, the rotating power is reduced, the axial distribution of clearance between the inner wall surface of the body and the vane is uniformized, and the evaporation performance is improved. In addition, the area surrounded by the body and the vane member is increased as compared with the conventional evaporator, the cross-sectional area of the passage for the evaporated material is increased, the resistance to the flow of the evaporated material is reduced, and evaporation is easily carried out.

10. 发明专利

JPH0699001A CONSTRUCTION OF IN-VESSEL BEARING 失效
公开(公告)号：JPH0699001A
公开(公告)日：1994-04-12
申请号：JP24959692
申请日：1992-09-18
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： KUNIMOTO JUNICHI , UMEMOTO KOSHI , NOMURA SEIJI , FUJIMOTO MASARU , FUJII ISAMU
IPC分类号： F16C33/76 , B01D1/22 , F16J15/34
摘要： PURPOSE:To prevent the infiltration of a treating liquid and washing water into an in-vessel bearing by constructing the bearing of a vertical type centrifugal thin film evaporator having the in-vessel bearing in such a manner that a mechanical seal can follow up to a shaft. CONSTITUTION:A sealant enters a sealant inlet 10, flows from below to above of the mechanical seal 14 and is discharged from a sealant outlet 11. The in- vessel treating liquid tends to infiltrate from the spacing between a housing 2 and a sleeve 4 but is discharged into the vessel while its infiltration is prevented by the mechanical seal 14. The mechanical seal 14 and the sleeve 4 tend to fall by their own weights but their fall is prevented by fixing jigs 15. One side of the fixing jigs 15 is formed to the shape of a key groove and is bolted to the sleeve 4, by which the shaft 16, the mechanical seal 14 and the sleeve 4 are simultaneously rotated. The infiltration of the in-vessel treating liquid into the bearing part is prevented and the mechanical seal is rotated in follow up to the shaft without falling.

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