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1. 发明专利

JPH04285888A APPARATUS FOR CONNECTING PIPING IN VACUUM CONTAINER 失效
公开(公告)号：JPH04285888A
公开(公告)日：1992-10-09
申请号：JP4933091
申请日：1991-03-14
申请人： JAPAN ATOMIC ENERGY RES INST , MITSUBISHI HEAVY IND LTD , MITSUBISHI ATOMIC POWER IND
发明人： YAMAMOTO MASAHIRO , ARAI TAKASHI , TOMITA MITSURU , IOKI KIMIHIRO
IPC分类号： G21B1/05 , G21B1/00
摘要： PURPOSE:To enhance the healthiness and reliability of the connection part of piping and to reduce the possibility of a vacuum leak. CONSTITUTION:Pipings 1, 2 are preliminarily bent in the internal direction of a vacuum container from the inner wall surface of the vacuum container 10 in the vicinity of the connection end parts thereof. Subsequently, two holes provided to a box-shaped structure 3 are engaged with the end parts of the pipings 1, 2 to mutually weld the pipings and the structure 3 and an opening part of the box-shaped structure is closed by a lid plate 4 to mutually weld the structure 3 and the lid plate 4 to allow the pipings 1, 2 to communicate with each other through the box-shaped structure 3.

2. 发明专利

JPH04276197A MULTITURBO TYPE VACUUM PUMP 失效
公开(公告)号：JPH04276197A
公开(公告)日：1992-10-01
申请号：JP3854491
申请日：1991-03-05
申请人： JAPAN ATOMIC ENERGY RES INST , MITSUBISHI HEAVY IND LTD
发明人： ABE TETSUYA , MURAKAMI YOSHIO , ARAI TAKASHI , OSAWA HARUSHIGE , HATA SATOSHI
IPC分类号： F04D17/16 , F04D19/04 , F04D25/16
摘要： PURPOSE:To improve discharge efficiency by increasing the discharge capacity and compression ratio of a turbo molecular pump and reducing dimension. CONSTITUTION:A plurality of turbo type rotary bodies are built in multishaft form inside a casing 4 having a suction port and a discharge port, and the need of piping is obviated, and the discharge efficiency is improved, and the reduction of dimension is permitted. One edge of the turbo type rotary body is formed to turbo molecular pump (main turbo rotary body 6), and a plurality of turbo type rotary bodies (subturbo rotary body 11) are arranged in circumferential form under the lowermost stage blade, and the installation space is reduced, and the compression ratio is increased. Further, each of the turbo type rotary body consists of a viscous vacuum pump which is formed by combining rotary discs having each groove in the spiral direction, in plural stages, and discharge with high compression ratio is carried out continuously.

3. 发明专利

JPH08980A DECABORANE GAS FEEDING SYSTEM 失效
公开(公告)号：JPH08980A
公开(公告)日：1996-01-09
申请号：JP13698894
申请日：1994-06-20
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： HIRATSUKA HAJIME , ARAI TAKASHI , NISHIDOU MASAHIRO
IPC分类号： B01J4/00 , H01L21/22
摘要： PURPOSE:To provide a decaborane gas feeding system which can be safely treated by a system wherein decaborane being solid and easily handleable at ordinary temp. is used as a raw material and decaborane gas can be obtd. by heating decaborane and a specified gas flow rate is stably fed by means of a gas flow rate control valve and decaborane gas which is turned out to be unnecessary to be fed is detoxicated and removed. CONSTITUTION:Decaborane (B10H14) which is solid and easily handleable at ordinary temp. is filled in a container 42 as a raw material and decaborane gas is obtd. by heating decaborane in an oven and a specified gas flow rate is stably bed by means of gas flow rate control valves 10, 21-24, 30 and 31 and decaborane gas which is turned out to be unnecessary is detoxicated and removed. In addition, when an emergency arises, generation of decaborane vapor pressure is suppressed and stopped by cooling the heating part and it is recrystallized into decaborane being solid and easily handleable by cooling. As a result, a decaborane gas feeding system which can be safely treated can be obtd.

4. 发明专利

JPH01150843A OBSERVING DEVICE FOR INSIDE OF TORUS 失效
公开(公告)号：JPH01150843A
公开(公告)日：1989-06-13
申请号：JP31002287
申请日：1987-12-08
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： TAKATSU HIDEYUKI , ARAI TAKASHI , KAMINAGA ATSUTSUGU , KAWASHIMA SHUICHI
IPC分类号： G01N21/88 , G01N21/954 , G21B1/05
摘要： PURPOSE:To exactly observe the inside of a torus container by coordinating an observation position and an observation image by constituting the title device so that a torus coordinate system and a periscope coordinate system can be converted mutually by a computer system. CONSTITUTION:A periscope 1 is constituted of an image leading-out pipe 1a provided on a torus container T, a mirror 1b which is provided on one opening end part of the pipe 1a and leads out an image of the periphery of this one opening end part to the other opening end part side of the pipe 1a, a lens 1c for taking in an image which is reflected by the mirror 1b, and a motor 1b1 for rotating the mirror 1b. Also, as for the periscope 1, its position is determined by a periscope coordinate system in the torus container T. On the other hand, an observer who is positioned outside of the torus container T is in a torus coordinate system against the torus container T. In this state, by constituting so that the torus coordinate system and the periscope coordinate system can be converted mutually by a computer system 3, an observation position and an observation image are coordinate and the inside of the torus container can be observed exactly.

5. 发明专利

JPH01148947A APPARATUS FOR OBSERVING INTERIOR OF VACUUM CONTAINER 失效
公开(公告)号：JPH01148947A
公开(公告)日：1989-06-12
申请号：JP30773287
申请日：1987-12-07
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： TAKATSU HIDEYUKI , ARAI TAKASHI , KAMINAGA ATSUTSUGU , SHOJU MAKOTO , KITAGAWA KIYOHIKO
IPC分类号： G01N21/88 , G01N21/954 , G21B1/05
摘要： PURPOSE:To perform observation in such a state that a vacuum container is held under vacuum and to obtain a clear image having no strain, by providing a guide pipe, a vacuum sealing window and a reflecting mirror. CONSTITUTION:The guide pipe 101 having a vacuum seal window 103 provided to the bottom part thereof, inserted in the observing machinery insert and removing port 109 of a vacuum container and an observation optical system observing the interior of the vacuum container through the seal window 103 provided in the guide pipe 101 are mounted. Further, the reflecting mirror 104 revolvable around X- and Y-axes crossing each other at a right angle provided below the guide pipe 101, a plurality of the shafts 107a-c provided so as to be movable up and down through the bottom part of the guide pipe 101 and a reflecting mirror posture control system for driving said shafts up and down to control the posture of the reflecting mirror 104 are mounted. Since the posture of the reflecting mirror 104 can be controlled by driving the shafts 107a-c in an up-and-down direction, the seal window 103 of the guide pipe 101 can be made of a plate-shape glass window. Therefore, observation can be performed in such a state that the vacuum container is held under vacuum and a strain free sharp image can be obtained.

6. 发明专利

JPS6479633A LEAK DETECTOR FOR LOW-TEMPERATURE LIQUEFIED GAS 失效
公开(公告)号：JPS6479633A
公开(公告)日：1989-03-24
申请号：JP23829987
申请日：1987-09-22
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： HIRATSUKA HAJIME , ARAI TAKASHI
IPC分类号： G01M3/16 , G01M3/00 , G01M3/02 , G21B1/00 , G21B1/11 , G21B1/25
摘要： PURPOSE:To detect a leak of a liquefied gas, by detecting a change in current caused by a temperature difference between the normal temperature and a low-temperature liquefied gas with a sensor comprising a silicon diode. CONSTITUTION:This apparatus has a silicon diode 1 for monitoring room temperature and a silicon diode 2 for detecting a leak of a low-temperature liquefied gas and a change in current of the two silicon diodes 1 and 2 is detected with a differential amplifier 3 to obtain an output 4, which facilitates the detection of a leak of the low-temperature liquefied gas. The output 4 is shown on a display section or an alarm section is driven thereby enabling easy and accurate detection of a leak of the liquefied gas.

7. 发明专利

JPH06154579A RAW MATERIAL CONTAINER 失效
公开(公告)号：JPH06154579A
公开(公告)日：1994-06-03
申请号：JP31739892
申请日：1992-11-26
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： HIRATSUKA HAJIME , ARAI TAKASHI
IPC分类号： B01J4/00
摘要： PURPOSE:To fill a container with a raw material which is solid at ordinary temperature, such as decaborane as a boron compound, and generates a vapor pressure if heated at a certain temperature, then heat the raw material after exhausting the vapor from the container to stabilize the pressure of a high purity vapor and supply it to equipment used. CONSTITUTION:The raw material container consists of a main container system 1, a valve 2, a filter gasket 6, a joint and piping. The main container system 1 is filled in with a solid raw material such as decaborane as a boron compound which is solid at ordinary temperature, and is evacuated under this condition. In addition, the raw material container supplies the gas obtained by evaporating a liquidized solid raw material, at a constant vapor pressure, when the main container system 1, the valve 2, the filter gasket 6 and the joint and piping are heated.

8. 发明专利

JPH01270695A VACUUM VESSEL FOR NUCLEAR FUSION 失效
公开(公告)号：JPH01270695A
公开(公告)日：1989-10-27
申请号：JP9813788
申请日：1988-04-22
申请人： HITACHI LTD , JAPAN ATOMIC ENERGY RES INST
发明人： OWADA KORO , YAMAMOTO MASAHIRO , ARAI TAKASHI , KODAMA KOZO , AKINO NOBORU , SUZUKI MICHIO
IPC分类号： G21B1/11 , G21B1/00 , G21B1/17 , H05H1/12
摘要： PURPOSE:To protect an optical system equipments 2 from a molten metal powder of the first wall and to enable a cleaning work without removing instrumentation, by providing a cylinder to prevent flowing-in of an impurity into a lower port, making it protrude into a vacuum vessel from the upper end of the lower port. CONSTITUTION:The first wall 7 is fixed to an inner surface of a vacuum vessel 2 to protect the vessel 2 and also is subdivided into small parts to absorb a thermal stress derived from a radiation heating of a plasma 1. Therefore, a metal powder 8 of the first wall 7 melted by the plasma 1 reaches an opening of the lower port 4 via the inner surface of the vessel 2, from gaps in the first wall 7. In this occasion, in case that a cylinder 6 is fixed to the inner surface of the lower port 4, the metal powder of the first wall, dropping down along the inner surface of the vessel 2, is stopped by the cylinder 6 and does not fall into the lower port 4. Moreover, covering an upper end of the cylinder 6 with a lid when the inner surface of the vessel 2 is washed down makes it possible to wash the inner surface of the vessel 2 without removing an instrumentation from the lower port 4, and to prevent damage of the instrumentation by dropping dusts into the inside of the port during a rinsing work of a cleaner liquid.

9. 发明专利

JPH1194683A METHOD AND DEVICE FOR INSPECTING CAPILLARY FOR LEAKAGE POSITION 失效
公开(公告)号：JPH1194683A
公开(公告)日：1999-04-09
申请号：JP25660097
申请日：1997-09-22
申请人： HITACHI LTD , JAPAN ATOMIC ENERGY RES INST
发明人： KUNII TSUTOMU , TAKIZAWA TERUHIRO , SASAJIMA HIROSHI , SHIMIZU MASATSUGU , ARAI TAKASHI , MATSUMOTO KIYOSHI , SUZUKI MASAMI
IPC分类号： G01M3/02 , G01M3/04 , G01M3/20 , G21C17/025
摘要： PROBLEM TO BE SOLVED: To specify the part of a cooling water passage, through which water seeps. SOLUTION: If the circumferential wall of a rectangular pipe forming a cooling water passage 106 has a part through which water seeps, helium gas is once forced out toward the part of the circumferential wall of the rectangular pipe, through which water seeps and an insulating material on the outer periphery of the part, and then the helium gas forced out is drawn to the water- seeping part side inside the cooling water passage 106, to obtain the state of viscous fluid. In that state, if a suction probe 12 moved through the cooling water passage 106 sucks the helium gas, the position of the part of the cooling water passage 16 through which water seeps is specified according to the amount of movement of the suction probe 12 in the cooling water passage 106. Thus, the position of the part through which water seeps can be known with precision.

10. 发明专利

JP2010144216A Spheroidal graphite cast iron 有权
标题翻译： SPHEROIDAL石墨铸铁
公开(公告)号：JP2010144216A
公开(公告)日：2010-07-01
申请号：JP2008322696
申请日：2008-12-18
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： ARAI TAKASHI
IPC分类号： C22C37/04 , C21D5/00
CPC分类号： C22C37/04 , C21D5/00 , C22C37/06 , C22C37/10
摘要： PROBLEM TO BE SOLVED: To provide spheroidal graphite cast iron which has excellent high-temperature strength and oxidation resistance at >800°C than that of the conventional high SiMo spheroidal graphite cast iron. SOLUTION: The spheroidal graphite cast iron is composed of, by mass, 2.0 to 4.0% carbon, 3.5 to 5.0% silicon, ≤1.0% manganese, 0.1 to 1.0% chromium, 0.2 to 2.0% molybdenum, 0.1 to 1.0% vanadium and 0.02 to 0.1% magnesium, and the balance iron with inevitable impurities. COPYRIGHT: (C)2010,JPO&INPIT

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