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1. 发明专利

JPH11142583A METHOD AND DEVICE FOR REPLACING FLUID IN USED-FUEL TRANSPORTING CONTAINER 失效
公开(公告)号：JPH11142583A
公开(公告)日：1999-05-28
申请号：JP30462797
申请日：1997-11-06
申请人： MITSUBISHI HEAVY IND LTD
发明人： IRINO MITSUHIRO , TANAKA KAZUHISA , FUNAKOSHI TOSHIO , TAGUCHI SHOZO , MURASAWA KENJI
IPC分类号： G21C19/32
摘要： PROBLEM TO BE SOLVED: To make a fluid in a used-fuel transporting container relatively quickly replaceable with another fluid. SOLUTION: A replacing fluid in a storage tank 21 is injected into a used-fuel transporting container 10 containing a fluid by means of a pump 23 through a drain valve 26 provided to the bottom of the container 10 in the vertical direction. Since the temperature of the replacing fluid is relatively lower than that of the fluid in the container 10, a stratified interface is formed between the fluid contained in the container 1 and the injected replacing fluid. Because of the rising effect of the interface caused by the density difference between the fluids above and under the interface, the fluid contained in the container 10 can be replaced with the replacing fluid in a relatively short time even when the container has a complicated internal structure. The replaced internal fluid is discharged to a recovery tank 22 from a vent valve 29 and a pressurizing valve 30 provided to the top of the container 10.

2. 发明专利

JPH1184058A CONTROL LOGIC VERIFYING DEVICE FOR PNEUMATIC TRANSPORTATION FACILITY 失效
公开(公告)号：JPH1184058A
公开(公告)日：1999-03-26
申请号：JP23693797
申请日：1997-09-02
申请人： MITSUBISHI HEAVY IND LTD
发明人： NATSUME AKINORI , MURASAWA KENJI , HIRAIWA TAKAMITSU
IPC分类号： G01N1/00 , B65G53/66 , G05B13/04 , G05B23/02 , G21C17/00
摘要： PROBLEM TO BE SOLVED: To provide a control logic verifying device which can remarkably shorten the time required for verifying work, prevent verification omission by mechanizing the work which has been relying upon verifiers, and perform verification with high accuracy by making quantitative discrimination. SOLUTION: In a control logic verifying device, a control simulator 1 outputs a control command by computing control logic based on a start command, operating conditions, and plant conditions and a plant simulator 2 finds the motion of a sample jag transported through a pneumatic transportation line by simulating the flow of air in the line based on a physical formula upon inputting the control command. In addition, a criterion preparing section 3 inputs the start command and operating conditions and finds the criterion to the motion of the sample jag when the control logic is normal and a normal/ abnormal condition discrimination section 4 discriminates whether or not the motion of the sample jag found by means of the plant simulator 2 meets the criterion prepared by means of the criterion preparing section 3.

3. 发明专利

JP2001013295A RADIOACTIVE WASTE STORAGE FACILITY 失效
公开(公告)号：JP2001013295A
公开(公告)日：2001-01-19
申请号：JP18495299
申请日：1999-06-30
申请人： MITSUBISHI HEAVY IND LTD
发明人： IRINO MITSUHIRO , IRIE TAKAYUKI , FUNAKOSHI TOSHIO , MURASAWA KENJI
IPC分类号： E04H7/18 , G21F9/36
摘要： PROBLEM TO BE SOLVED: To obtain a radioactive waste storage facility of which integrity can be secured for a long period. SOLUTION: A cell room 22 communicates with an outside air introduction passage equipped with an outside air inlet 32, a lower plenum 24 located below housing tubes 36 and a cooling air exhaust passage equipped with an air outlet 34 and has an upper plenum 28 located below a ceiling slug 40. A side-wall flow channel 56 for cooling a concrete side wall 50 is formed between it and a plate 54 for forming the side-wall flow channel. The housing tubes containing radioactive wastes and the concrete side wall are cooled by natural ventilation derived from the convection in the cell room generated by the heat emitted from the radioactive substances stowed in each of the housing tubes 36. A plate 60 for forming a ceiling flow channel is placed opposite to the inner face of the ceiling slug, and a ceiling flow channel 62 communicating with the side- wall flow channel is formed between the ceiling slug and the plate 60 for forming the ceiling flow channel. Partitions that extend from the lower plenum 24 toward the upper plenum 28 are formed in the side-wall flow channel.

4. 发明专利

JPH10128090A ELECTROLYTIC DISSOLVER WITH AGITATOR 失效
公开(公告)号：JPH10128090A
公开(公告)日：1998-05-19
申请号：JP28818596
申请日：1996-10-30
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAWAMURA WATARU , MIYAKE TAKASHI , MURASAWA KENJI , OKAZAKI KIKUO
IPC分类号： G21C19/46 , B01F1/00
摘要： PROBLEM TO BE SOLVED: To generate a strong oxidizing agent to cover its loss, to promote a flow of solution and also to bring the oxidizing agent into effective contact with a hardly soluble material. SOLUTION: An electrolytic dissolver 1 is divided into a primary side vessel 1a and a secondary side vessel 1b, and they communicate with each other by an upper line and a lower line. In the one primary side vessel 1a of the electrolytic dissolver 1, a cathode 4 connected to the positive side of a power source 3 is immersed in a solution 5, and around the cathode 4, a diaphragm 6 is arranged. On the other hand, above the secondary side vessel 1b, a rotary driver 7 for agitating the solution 5 is arranged, and on a rotating shaft 8 thereof, an anode 9 connected to the negative side of the power source 3 is immersed in the solution 5. An anode 9 is formed into such a shape that the solution is agitated.

5. 发明专利

JPH10111390A DISSOLVER 失效
公开(公告)号：JPH10111390A
公开(公告)日：1998-04-28
申请号：JP26308396
申请日：1996-10-03
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAWAMURA WATARU , MIYAKE TAKASHI , MURASAWA KENJI , FUJIOKA TSUNAAKI , KANEDA MASAKAZU , OKAZAKI KIKUO
IPC分类号： G21C19/46
摘要： PROBLEM TO BE SOLVED: To keep sludge unapt to adher or deposit in a reprocessing process of a nuclear fuel and enable the promotion of solution reaction by forming an inner face of a bottom part of a dissolver main body on a curved face and sending fluid from a fluid introducing tube toward a curved face of the bottom part. SOLUTION: An inner face of a bottom part of a dissolver main body 1 is formed on a curved face. Nitride solution is filled in the dissolver main body 1, irradiated fuel is changed, and the whole dissolver main body 1 is heated. With heating, a gas supply unit 4 is operated, and gas is sent toward a curved face of the bottom part 2 by a gas introducing tube 3. The sent gas flows along a curved face of the bottom part 2, and the solution near the bottom part 2 is flowed upwardly. At this time, a sludge floating in the solution or a sludge to be laminated on the bottom part 2 flows upwardly with gas and solution, and the sludge is hardly laminated on the bottom part 2. The solution is stirred by flowing of the solution generated when the fluid is sent, the opportunity of contact with fuel and nitride is enhanced, and dissolution reaction is promoted.

6. 发明专利

JP2002040191A RADIATION SHIELD STRUCTURE FOR DUCT 失效
公开(公告)号：JP2002040191A
公开(公告)日：2002-02-06
申请号：JP2000227422
申请日：2000-07-27
申请人： MITSUBISHI HEAVY IND LTD
发明人： TANAKA YUTAKA , TOKUNAGA SETSUO , IRINO MITSUHIRO , IWAI KAZUHIRO , MORISHIMA MAKOTO , MURASAWA KENJI
IPC分类号： G21C19/06 , F24F13/02 , G21F3/00 , G21F9/36
摘要： PROBLEM TO BE SOLVED: To enhance duct radiation shield and the effect of pressure loss suppression of cooling air in the duct radiation shield structure by making them compatible. SOLUTION: A cooling air inflow path 96 and wing plate units 10 and 11 in the vertical direction of air flow G in an outlet duct 90 are coupled as a pair, and the pair is arranged above and below. The wing plate 1 is inclined upward to the left by an angle θ=54 degrees and a multitude are arranged with a pitch P and the wing plate 2 is arranged opposite to be upward to the right. The wing plates 1 and 2 are arranged shifting positions to each other in the vertical directions, and each units 10 and 11 are arranged with interval D in a height direction H. Since the air flow is smooth lines as shown with the solid line Y, and pressure loss becomes small and air convection is enhanced and radiation is multiplex-reflected to be reduced and shielded as dotted lines X1 and X2.

7. 发明专利

JP2000002793A DEVICE AND METHOD FOR DECOMPOSING PHOSPHORIC ACID EXTRACTING AGENT 失效
公开(公告)号：JP2000002793A
公开(公告)日：2000-01-07
申请号：JP28064298
申请日：1998-10-02
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAWAMURA WATARU , ISHIHARA NOBUO , MIYAKE TAKASHI , MURASAWA KENJI , OKAZAKI KIKUO
IPC分类号： A62D3/00 , B01J19/00 , G21C19/46 , G21F9/06
摘要： PROBLEM TO BE SOLVED: To dispose of a secondary waste without any trouble while keeping a sufficient treatment efficiency by pressurizing and heating an extracting agent to which water, neutralizer, and oxygen source are added to lay the water in supercritical state, and separating the off gas generated by this reaction. SOLUTION: A neutralizer in a neutralizer tank 2, an oxidizer in an oxidizer tank 3, and pure water in a pure water tank 4 are added to tributyl phosphate(TBP) in a sample liquid tank 1, and the mixture is raised in pressure and temperature and guided to a reaction vessel 5, where TBP is decomposed to butyl group and phosphoric acid. A this time, when the system temperature exceeds the critical point, pure water forms an environment rich in reactivity of supercritical state to efficiently progress the reaction, and TBP + hydrogen peroxide + pure water in the inlet is made to phosphate + carbon dioxide + water. When the system is released to room temperature and pressure in the outlet, water having the phosphate partially precipitated therein is collected in the bottom of a solid-liquid separator 6, and a solidifying device 7 disposes it as waste solid. An exhaust gas treatment device 8 attracts the nuclide from the carbon dioxide containing nuclide moved to the upper part and releases the resulting carbon dioxide to the atmosphere.

8. 发明专利

JPH03181893A AGITATOR FOR MIXER-SETTLER TYPE EXTRACTOR 失效
公开(公告)号：JPH03181893A
公开(公告)日：1991-08-07
申请号：JP32067389
申请日：1989-12-12
申请人： MITSUBISHI HEAVY IND LTD
发明人： FUJIMOTO KENJI , MURASAWA KENJI , UEJIMA NAOYUKI
IPC分类号： G21C19/46 , B01D11/04
摘要： PURPOSE:To make controlling of a circulating amount of water phase much easier by setting an agitator being combined with a diffuser and an inducer into a mixer part. CONSTITUTION:A diffuser 17 is attached to a tip end of a water phase circulation line 18 which is connected to a bottom part of a mixer part 2 from water phase of a settler part, through an elevating mechanism 19 of the diffuser. Also, an inducer 16 is attached to a tip end of a driving axis which is connected to a motor 6 and supports an impeller 5, and an tip end of the inducer 16 is placed in a conical inhalator part of the diffuser 17. This inducer 16 is a conical body on which surface, spiral vanes are attached, rotates with the impeller 5 and inhales the water phase from the circulation line 18 to introduce into the mixer part. The elevating mechanism 19 elevates the diffuser 17 by a sleeve having a screw part, and regulates a relative position to the inducer 16. By this procedure, a circulation amount of the water phase of the settler part to the mixer part, can be easily controlled.

9. 发明专利

JPH03181892A MIXER-SETTLER TYPE EXTRACTOR WITH PRESSURE REDUCTION WEIR 失效
公开(公告)号：JPH03181892A
公开(公告)日：1991-08-07
申请号：JP32067289
申请日：1989-12-12
申请人： MITSUBISHI HEAVY IND LTD
发明人： FUJIMOTO KENJI , MURASAWA KENJI , UEJIMA NAOYUKI
IPC分类号： G21C19/46 , B01D11/04
摘要： PURPOSE:To control a liquid surface position of a settler part automatically by sending a liquid surface signal of the settler part to a pressure regulating valve of a vacuum line connected to a pressure reduction weir. CONSTITUTION:An electrostatic capacity type liquid surface gauge 16 is placed at a settler part of a mixer-settler type extractor in order to detect height of a surface 7 of a water phase 5 and an organic phase 7, and the detected height is converted 17 to a voltage signal and sent to an indicating regulator 18. At that time, the indicating regulator 18 regulates a pressure regulating valve 12 which is provided at a vacuum line 11 of a pressure reduction weir 2, to control a vacuum of the pressure reduction weir 2. On the other hand, a vent valve 13 provided at a vent side, is manually set to a specific openness, in advance, in order to maintain the vacuum of the pressure reduction weir under an normal operational condition. By regulating the vacuum of the pressure reduction weir 2 with combining the valves 12 and 13 in this way, the surface position can be automatically restored to the specific position even if the surface position of the settler part at each stage might change.

10. 发明专利

JP2003294891A Housing pipe for high-level radioactive waste 审中-公开
标题翻译：用于高水平放射性废物的住房管道
公开(公告)号：JP2003294891A
公开(公告)日：2003-10-15
申请号：JP2002103527
申请日：2002-04-05
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： IRIE TAKAYUKI , TANAKA KAZUHISA , TOKUNAGA SETSUO , IWAI KAZUHIRO , MURASAWA KENJI , IRINO MITSUHIRO
IPC分类号： G21F5/10 , G21F9/36
摘要： PROBLEM TO BE SOLVED: To increase the cooling efficiency of a housing pipe.
SOLUTION: In housing pipes 10, canisters 3 in which high-level radioactive wastes are housed are put. The upper parts of the housing pipes 10 are supported with the ceiling portion 2a of a storage warehouse 2 and are hung down in it. The housing pipes 10 are cooled by spontaneous circulation of air. Since the peripheral surfaces of these housing pipes 10 are provided with fins 10a, the cooling efficiency of each housing pipe 10 increases, and increase of the inside temperature of each canister 3 can be suppressed.
COPYRIGHT: (C)2004,JPO

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