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1. 发明专利

JPS61220407A SUPERCONDUCTING APPARATUS 失效
公开(公告)号：JPS61220407A
公开(公告)日：1986-09-30
申请号：JP6069985
申请日：1985-03-27
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： OKUMURA YUJI , IMURA HIROYA
IPC分类号： H01F6/04 , H01L39/04
摘要： PURPOSE:To reduce the number of the external pipings for cooling the heat radiation shields by gathering either the recovery side or injection side cooling pipings into a manifold to draw them out of the apparatus. CONSTITUTION:Coolant is led from a supply source 9 to a superconducting apparatus 1 through external injection pipings 4 provided for each system, and injected into each system along piping 6. On the other hand, the coolant which has cooled the heat radiation shields 2 is gathered into a manifold 3 from cooling pipings 7 in the neighborhood of the joint 8 between the external pipings 4, 5 and the apparatus 1, and recovered or discharged to the outside through one external recovery piping 5. With this arrangement, the increase of the external pipings due to the increase of the cooling systems can be made small. Therefore, the increase of heat penetration into the piping 5 can be suppressed, and the low-temperature insulation or vacuum heat insulation piping accommodating the external pipings can be prevented from becoming large- scaled.

2. 发明专利

JPS60214574A Cryogenic container 失效
标题翻译：低温容器
公开(公告)号：JPS60214574A
公开(公告)日：1985-10-26
申请号：JP7090184
申请日：1984-04-11
申请人： Hitachi Ltd , Hitachi Service Eng Co Ltd
发明人： OKUMURA YUUJI , IMURA HIROYA
IPC分类号： H01F6/04 , F17C3/08 , H01L39/04
CPC分类号： F17C3/08 , F17C2203/0391 , F17C2209/228 , F17C2223/0161
摘要： PURPOSE:To facilitate maintenance of external piping, shorten evacuating time, and attain a higher degree of vacuum by a method wherein a partition wall is provided to isolate pressure-wise a cryogenic container main body from a vacuum pipe and the two are furnished with evacuating units respectively. CONSTITUTION:Maintenance may be accomplished by only separating a vacuum pipe 9 from a container main body 1 by removing a bolt 18 from a joint section 11 with the other bolt 19 left installed. The container main body 1 remains under vacuum in the presence of a partition wall 12 covering the joint section 11. The vacuum pipe 9 is then installed back to the container main body 1 for re-evacuation. Maintenance is easier because evacuation needs to be accomplished only for the vacuum pipe 9. With the container main body 1 and the vacuum pipe 9 being evacuated respectively by evacuating units 4, 13, evacuation time is shortened and a higher degree of vacuum may be attained.
摘要翻译：目的：为了便于维护外部管道，缩短抽真空时间，并通过一种方法获得更高的真空度，其中设置隔壁以将冷冻容器主体与真空管压力分离，并且两者具有排气单位。构成：可以通过仅将另一个螺栓19安装在一起从接头部分11移除螺栓18而仅通过从容器主体1分离真空管9来实现维护。容器主体1在覆盖接头部分11的分隔壁12的存在下保持真空。然后将真空管9安装回容器主体1以进行再抽真空。维护更容易，因为仅需要对真空管9进行撤离。通过抽空单元4,13将容器主体1和真空管9分别抽空，抽空时间缩短并且可以获得更高的真空度。

3. 发明专利

JPS60100406A SUPERCONDUCTIVE DEVICE 失效
公开(公告)号：JPS60100406A
公开(公告)日：1985-06-04
申请号：JP20690683
申请日：1983-11-05
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： OKUMURA YUUJI , IMURA HIROYA
IPC分类号： H01F6/04 , H01L39/04 , H01F7/22
摘要： PURPOSE:To cool down the superconductive coils having different precooling characteristics to the temperature at which they are operated effectively as well as to reduce the intrusion of heat into a heat insulated chamber by simplifying a piping system by a method wherein a precooling system is provided for every superconductive coil, and the cooling system used when the superconductive device is in operation is constituted by an reserve liquid reservoir and a regulating valve. CONSTITUTION:A plurality of superconductive coils 3 and arranged in a heat insulated chamber 1, and a common reserve liquid reservoir 4 is provided at the upper part of the chamber 1. Each precooling pipe 6 provided on each superconductive coil 6 is connected to a refrigerant supply source 13 through the intermediary of the precooling control valve 10 provided at the inlet of the heat insulated chamber 1 or the precooling control valve 10 provided outside the heat insulated chamber 1. As a result, all the superconductive coils 3 can be cooled down to the temperature at which the superconductive device is properly operated taking into consideration of the precooling characteristics of each superconductive coil. The cooling piping 7 connected to the reserve liquid reservoir 4, which is used when the superconductive device is in operation, controls the liquid level of the refrigerant contained in the reserve liquid reservoir 4, and as it is unnecessary to take into consideration of the difference in characteristics between each superconductive coil, said piping can be simplified in constitution by having the constitution in common.

4. 发明专利

JPS60136209A SUPERCONDUCTIVE DEVICE 失效
公开(公告)号：JPS60136209A
公开(公告)日：1985-07-19
申请号：JP24310983
申请日：1983-12-24
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： OKUMURA YUUJI , IMURA HIROYA
IPC分类号： H01F6/04 , G21B1/00 , G21B1/11 , H01F6/00 , H01F6/06 , H01L39/04 , H02K55/00
摘要： PURPOSE:To reduce the generation of thermal stress by reducing the generation of a difference in temperature and further to shorten a preliminary cooling time by arranging a supporting member cooling pipe for cooling a superconductive coil supporting member in a preliminary cooling system. CONSTITUTION:A base preliminary cooling pipe 24 is arranged with being drawn around over the lower surface of a lower low-temperature base 5 and the upper surface of an upper low-temperature base 4. The pipe is welded or brazed to the bases in order to improve thermal conduction. One end of the base preliminary cooling pipe 24 is connected to a cooling medium transporting pipe 20 through a base preliminary and another end is connected to a withdrawal pipe 17. The preliminary cooling pipes 12' are drawn around over a peripheral surface of a sheer panel 6 and is then connected to a container 1. The preliminary cooling pipes 12' are welded or brazed to the peripheral surface of the sheer patel 6 in order to improve thermal conduction with it. The base preliminary cooling pipe 24 cools the low-temperature bases 4 and 5 and also the preliminary cooling pipes 12' cools the sheer panel 6 so that the preliminary cooling time can be reduced and generation of thermal stress is reduced.

5. 发明专利

JPS63247196A HYBRID TYPE MAGNETICALLY PROPELLED SHIP 失效
公开(公告)号：JPS63247196A
公开(公告)日：1988-10-13
申请号：JP8094587
申请日：1987-04-03
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： KUROISHI KAZUO , IMURA HIROYA
IPC分类号： B63H19/00
摘要： PURPOSE:To reduce a leakage magnetic field and improve propelling efficiency by providing both external magnetic field type electromagnetic propelling device and an internal magnetic field type electromagnetic propelling device on one ship and separately and independently operating each of them. CONSTITUTION:An external magnetic field type electromagnetic propelling device and an internal magnetic field type electromagnetic propelling device are installed in a hybrid type magnetically propelled ship. The external magnetic field type electromagnetic propelling device consists of a racetrack type superconductive magnet 12 having linear parts in the longitudinal direction of ship and electrodes 13, and the internal magnetic field type electromagnetic propelling device consists of a saddle type superconductive magnet 22 and electrodes 23. Thereby, during navigation on the open sea, the superconductive magnet 12 is excited to make a sea water electric current flow in the electrodes 13, enabling effective operation as an external magnetic field type magnetically propelled ship. Also, at the time of sailing in a harbor, the saddle type magnet 22 is excited to carry out navigation as an internal magnetic field type magnetically propelled ship, removing a leakage magnetic field.

6. 发明专利

JPS6229186A TRANSFER PIPING 失效
公开(公告)号：JPS6229186A
公开(公告)日：1987-02-07
申请号：JP16757785
申请日：1985-07-31
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： OKUMURA YUJI , IMURA HIROYA , TAKAHASHI TAKESHI
IPC分类号： H01L39/04
摘要： PURPOSE:To prevent a cooling system from becoming large in scale and improve the coolant transfer balance, by using metal supports to support space between transfer pipes and using thermal insulator supports to support space between the said metal supports and vacuum piping to uniformize temperature distribution of each transfer pipe. CONSTITUTION:Transfer piping 1 are covered with a laminated adiabatic layer 5 for intercepting radiation heat and housed inside a vacuum piping 2. Adiabatic vacuum condition 6 is made between the vacuum pipe 2 and the transfer piping 1, to prevent heat from penetrating. And, the transfer piping 1 themselves are coupled to each other by using metal supports 3, which are supported on the vacuum piping 2 by using thermal insulator supports 4. Thus, because the transfer piping 1 are jointed to each other through the metal supports 3 superior in heat conductivity, heat exchange takes place between their pipes themselves so that heat is dispersed from pipings with large heat-penetration to those with small one to obtain a temperature rise which is uniform as a whole. Then, a cooling system can be prevented from becoming large in scale, with transfer pipings superior in coolant transfer balance being available.

7. 发明专利

JPS61267380A COOLING DEVICE OF SUPERCONDUCTING APPARATUS 失效
公开(公告)号：JPS61267380A
公开(公告)日：1986-11-26
申请号：JP10892785
申请日：1985-05-21
申请人： HITACHI LTD , HITACHI SERVICE ENG
发明人： OKUMURA YUJI , IMURA HIROYA
IPC分类号： H01L39/04
摘要： PURPOSE:To discharge cooling water staying in a piping out quickly before freezing by a method wherein the freezing condition of the cooling water is detected and a compressed gas is introduced into the cooling-water piping. CONSTITUTION:When the flow speed of cooling water flowing in a cooling water piping 5' attached to a normal conducting coil 4 is declined and the flow is practically stopped, a current meter 13 outputs a flow speed detection signal. When the temperature of the cooling water is declined to reach a freezing temperature, a thermodetector 14 outputs a temperature detection signal. The first and the second judging elements 15 and 16 control the flow stop and the temperature decline of the cooling water. A logic discriminating circuit 17 discriminates the necessity o discharging the cooling water and supplying a gas in accordance with the logic condition of a flow-speed judging signal and a temperature-judging signal and outputs an instruction signal to a driving circuit 18. The circuit of a cooling-water piping system consists of the linking passage of a gas supply apparatus 12 a control valve 10 a cooling water piping 5' a control valve 11 the outside. A compressed gas is introduced into the piping 5' with pressure and the cooling water is discharged through the control valve 11 so that a breakdown of the cooling-water piping 5' or the like can be avoided.

8. 发明专利

JPS6192396A Superlow temperature vessel 失效
标题翻译：超级温度船
公开(公告)号：JPS6192396A
公开(公告)日：1986-05-10
申请号：JP21139584
申请日：1984-10-11
申请人： Hitachi Ltd , Hitachi Service Eng Co Ltd
发明人： OKUMURA YUJI , IMURA HIROYA
IPC分类号： F17C3/08
CPC分类号： F17C3/08 , F17C2203/0391 , F17C2203/0629 , F17C2223/0161
摘要： PURPOSE:To enable a vessel to be efficiently exhausted to a vacuum, by providing a heating device, which heats inside the vessel, in the heat insulating vacuum vessel so as to remove adhering water, in the case of the superlow temperature vessel having a vacuum exhaust device. CONSTITUTION:A hot air blower 10 being a heating device is provided in a heat insulating vacuum vessel 1, and the blower prior to cooling and vacuum exhaust injects hot warm gas into the inside of the heat insulating vacuum vessel 1 through a port 9. The injected hot warm gas, heating the inside of the vessel, evaporates water adhering to a superlow temperature structure 2 and the heat insulating vessel 1. If the vacuum exhaust is performed from this condition, the vessel, minimizing water, enables an exhaust time to be reduced further the reach of a vacuum degree to be enhanced.
摘要翻译：目的：为了使容器能够有效地排出真空，通过在绝热真空容器内设置加热装置，以便除去附着的水，在超低温容器具有真空的情况下排气装置。构成：在绝热真空容器1中设置作为加热装置的热风机10，在冷却和真空排气之前的鼓风机通过端口9将热的暖气注入绝热真空容器1的内部。注入热的热气体，加热容器的内部，蒸发附着在超低温结构2和绝热容器1上的水。如果从该条件进行真空排气，则容器使水最小化使排气时间为进一步减少真空度的提高。

9. 发明专利

JPH07190264A CLAMP CHAIN PIPING JOINT 失效
公开(公告)号：JPH07190264A
公开(公告)日：1995-07-28
申请号：JP33490693
申请日：1993-12-28
申请人： HITACHI LTD , JAPAN ATOMIC ENERGY RES INST , HITACHI NUCLEAR ENG
发明人： IMURA HIROYA , OZAWA YOSHIHIRO , SHIBANUMA KIYOSHI , KAKUDATE SATOSHI , OKA KIYOSHI , KANAMORI NAOKAZU
IPC分类号： F16L23/04
摘要： PURPOSE:To improve remote controllability by providing a guide flange which contains a chain-like fastening mechanism which connects a clamp to a clamp plate, and arranging the guide flange movably in an axial direction with respect to one piping. CONSTITUTION:Conical flanges 1a, 2a are respectively formed on ends of pipings 1, 2. A gasket 3 is arranged between the opposed flanges 1a and 2a. Clamp groups 4 are arranged so as to fit to conical portions of the flanges 1a, 2a. A guide flange 5 housing the clamp group 4 is slidably engaged with an outer periphery 1b of the piping 1. A projection 5e is formed on an end of the guide flange 5 so as to be moved by a remote control device, while a projection 1c is formed on the piping 1. The guide flange 5 is moved by attracting the projections. A clamp chain is not necessarily detached in every installation, and can be kept attached. Installation operation is simplified.

10. 发明专利

JPH0228117B2 失效
公开(公告)号：JPH0228117B2
公开(公告)日：1990-06-21
申请号：JP18583583
申请日：1983-10-06
申请人： HITACHI LTD
发明人： IMURA HIROYA , KOBAYASHI SEIJI
IPC分类号： G21B1/11 , G21B1/00 , H01F5/00 , H05H1/12

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