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51. 发明专利

JPS55151283A IONNEXCHANGE RESIN WATER SUPPLIER 失效
公开(公告)号：JPS55151283A
公开(公告)日：1980-11-25
申请号：JP5916479
申请日：1979-05-16
申请人： TOKYO ELECTRIC POWER CO , HITACHI LTD
发明人： ISHIZUKA AKIRA , KITAGUCHI HIROSHI , UCHIDA SHIYUNSUKE , OZAWA YOSHIHIRO
IPC分类号： G01T1/167 , B01J47/00 , B01J47/02 , G01N1/02 , G01T7/00 , G01T7/02 , G21C19/307 , G21F9/12
摘要： PURPOSE:To prevent the danger of radioactive contamination propagation while shortening greatly the time of a water supply to a column by relatively moving the column of an ion-exchange resin water supply unit and a sample water supply container and then by sealing a column injection mouth hermetically in a detachable state. CONSTITUTION:Of an ion-exchange resin water supply unit, column 3 is made airtight by pushing-up cylinder 13 with seal rings 10 and 14 and at this time, the tip of injection nozzle 20 is placed under the surface of swelling liquid 16 at any time. Under the conditions like this, radioactive sample water is supplied and vacuum pump 6 is put into operation to form an airtight air layer of upper lid 11 and seal ring 10 at the upper of the column; and the seal never gets wet and the flow Q1 of the vacuum column becomes equal to supply flow Q2 from sample supply container 1, thereby shortening greatly the water supply time from t1 to (t).

52. 发明专利

JPS55106510A MAGNETIC PACKED TOWER 失效
公开(公告)号：JPS55106510A
公开(公告)日：1980-08-15
申请号：JP1322179
申请日：1979-02-09
申请人： HITACHI LTD
发明人： OZAWA YOSHIHIRO , YAMASHITA HISAO , FUJITA KAZUNORI , MAEKOYA CHIAKI , KITAGUCHI HIROSHI
IPC分类号： B01D35/06 , B01J47/06 , B03C1/025 , B03C1/027
摘要： PURPOSE:To perform adsorption or ion exchange reaction with good efficiency by binding magnetically magnetic particles by using at least two or more magnetic generators and at the same time connecting them to a regenerative magnetic packed tower. CONSTITUTION:In order to remove subject components in liquid to be treated, the liquid is separated from process flow or the whole of the liquid is introduced from the lower part 11 of the magnetic packed tower into the magnetic packed tower 1 by the pump 10. When introducing the liquid into the tower 1, subject components in the liquid are reacted with magnetic particles bound magnetically to a vessel 7 and 9 both packed with fine magnetic wires. And, the liquid deprived of the aimed components by magnetic particles is discharged from the upper part 12 of the tower. The regeneration of magnetic particles is carried out by introducing the liquid into the upper part 12 of the packed tower after a certain hour after use, discharging it from the lower part 11, and then introducing it into the regenerating magnetic packed tower 23. In this case, the passage of electricity to the magnetic generator 6 is stopped or weakened and electricity is passed to the regenerating magnetic generator 24 in order to arrest magnetic particles which are bound in the magnetic fine wire packed tank 7 by the magnetic fine wire 25 for treatment.

53. 发明专利

JPS54137416A SEA WATER URANIUM RECOVERY APPARATUS 失效
公开(公告)号：JPS54137416A
公开(公告)日：1979-10-25
申请号：JP4536378
申请日：1978-04-19
申请人： HITACHI LTD
发明人： FUJITA KAZUNORI , YAMASHITA HISAO , OZAWA YOSHIHIRO , MAEKOYA CHIAKI , NAKASHIMA FUMITO
IPC分类号： C22B60/02 , B01D15/02
摘要： PURPOSE:To perform the recovery of uranium present in the sea water by utilizing the force of tide current by the procedure in which a floating tank provided with a desorption liquid tank, a regenerating liquid tank, a water-washing tank for U- adsorbent, and then by circulating an U-adsorbent through the sea water and the aforesaid tanks by the force of tide current. CONSTITUTION:The upper part of the floating tank 10 is provided with the desorption liquid tank 2, the regenerating liquid tank 3, and the water-washing tank 4 for uranium(U) adsorbent, and the U-adsorption belt with a number of blades 9 is rotated endlessly while being circulated through the sea water and a series of the aforesaid tanks 2, 3, and 4 by using the pulley 1 and the rotator 17. In this case, since the floating tank 10 is moored to the sea bottom by the mooring chain 11, the tide current collids with the blades 9 and thereby the adsorption belt 8 is rotated. The adsorbent, composed of the binary hydrate Ti-Fe oxides, is then treated with (NH4)2CO3, Na2CO3, etc., to desorp U in the desorption liquid tank 2, and then substances other than U are desorped by a mineral acid, e.g., hydrochloric acid, etc., in the regenerating liquid tank 3 to regenerate the adsorbent. The adsorbent is washed with water and reused for U adsorption.

54. 发明专利

JPS54131518A OBTAINING URANIUM FROM SEAWATER 失效
公开(公告)号：JPS54131518A
公开(公告)日：1979-10-12
申请号：JP3917878
申请日：1978-04-05
申请人： HITACHI LTD
发明人： OZAWA YOSHIHIRO , YAMASHITA HISAO , MAEKOYA CHIAKI , FUJITA KAZUNORI , NAKASHIMA FUMITO
IPC分类号： C22B60/02 , B01D15/00 , B01D15/02 , C22B3/00 , C22B3/24 , C22B7/00
摘要： PURPOSE:Magnetic adsorber granules of a specific grain is used to adsorb and recover uranium for seawater so that the adsrob treatment is efficiently performed and the recover ratio of the absorber is enhanced. CONSTITUTION:Seawater is admitted into the adsorbing bath 1 through the flow control valve 3 and the inlet 2 by the pump 4. Ti-Fe based magnetic adsorber of about 100mum is charged from the inlet 6 of the adsorber. Flow up rate of seawater in the bath 1 is controlled to 0.5 cm/sec by regulating the valve 3. Most of the adsorber falls down at a rate of 0.05 cm/sec relative to seawater while adsorbing uranium from seawater. Relatively small adsorber grain is carried with seawater to the outlet 8 and recovered by the magnetic separtor 9. The sedimentated adsorber at the bottom and the magnetically recovered adsorbent are totaled into greater than 99.99% of the charged adsorber. Then, uranium is recovered by desorber, and the adsorber is circulated for reuse.

55. 发明专利

JPS524992A DUMP TANK OF SODIUM COOLING FAST REACTOR 失效
公开(公告)号：JPS524992A
公开(公告)日：1977-01-14
申请号：JP8079975
申请日：1975-07-02
申请人： HITACHI LTD
发明人： OZAWA YOSHIHIRO , NAITOU KASAHIRO , YOKOTA KENKOU , MINATO AKIHIKO , FUKUSHIMA MINORU , SATOU YOSHIHIKO
IPC分类号： G21C9/00 , G21D1/00
摘要： PURPOSE:Inside of a tank is blocked to several small spaces with some parting plates of which the hight in lower than the upside wall of the tank, wherein leaksodium which is contaminated with radioactive materials can be collected under prevention against spread of comtamination.

56. 发明专利

JPS51109502A 失效
公开(公告)号：JPS51109502A
公开(公告)日：1976-09-28
申请号：JP3429575
申请日：1975-03-24
申请人： HITACHI LTD
发明人： SHIMOYASHIKI SHIGEHIRO , SAGAWA NORIHIKO , OZAWA YOSHIHIRO
IPC分类号： F04D7/06 , F04D7/08

57. 发明专利

JPH06242272A BLANKET FOR FUSION DEVICE 失效
公开(公告)号：JPH06242272A
公开(公告)日：1994-09-02
申请号：JP2573393
申请日：1993-02-15
申请人： HITACHI LTD
发明人： KAJIURA SOJI , OZAWA YOSHIHIRO , MAKI KOICHI
IPC分类号： G21B1/13 , G21B1/00
摘要： PURPOSE:To provide a blanket for fusion device, which maintains breeding material temperature constant even if heat generation is reduced with the consamption of the breeding material due to tritium breed reaction. CONSTITUTION:By providing primary coolant system outside of a vacuum vessel 2 with a boron concentration controller 11, the boron concentration included in the coolant circulatin in the cooling pipe 6 in a blanket vessel 3 is made controllable. If the breeding material 5 is consumed by tritium breeding reaction and heat generation is reduced, the boron concentration controller 11 is controlled to lower the concentration of boron for absorbing neutron in the coolant water, increase the neutron rate reaching the breeding material 5, maintain the heat generation to be the same as the beginning, and keep the breeding material temperature constant. Therefore, discharging tritium all the time from all region of the breeding material is possible and thus high breeding rate can be maintained.

58. 发明专利

JPH04160361A METHOD AND APPARATUS FOR ANALYZING AND MEASURING ISOTOPE GAS 失效
公开(公告)号：JPH04160361A
公开(公告)日：1992-06-03
申请号：JP28428790
申请日：1990-10-24
申请人： HITACHI LTD , JAPAN ATOMIC ENERGY RES INST
发明人： UDA TATSUHIKO , OZAWA YOSHIHIRO , OKUNO KENJI , NARUSE YUJI
IPC分类号： G01N21/65 , G01N30/74 , G01N30/88
摘要： PURPOSE:To analyze and measure respective separated component gases using a Raman scattering spectroscope by separating isotope gas into respective isotope gases using a high temp. column for gas chromatography. CONSTITUTION:A part of the component gas flowing through process piping 1 is sampled through a branch pipe 18 together with the carrier gas from a carrier gas supply tank 2 and a definite amount of said gas is sampled by a sampling pipe 3 to be allowed to flow to a separation column 4 packed with a molecular sieve. For example, the hydrogen isotope and methane isotope separated by the column 4 are detected by a heat conductivity type detector 6. When the presence of hydrogen gas is detected, the respective separated gases are sampled. Next, gas cells 71, 72 are irradiated with the laser beam from argon ion laser 8 through irradiation windows and the scattering beams 9 from the gases in the cells are incident to a Raman scattering spectroscope 10 and spectrally analyzed to measure Raman scattering beams. By this method, the concns. of respective hydrogen isotope gases can be measured from the intensity of the spectrum peak of the hydrogen isotope gas of the gas cell 71.

59. 发明专利

JPH03190096A MULTI-LAYERED BEAM DUMPER FOR PARTICLE ACCELERATOR 失效
公开(公告)号：JPH03190096A
公开(公告)日：1991-08-20
申请号：JP32848189
申请日：1989-12-20
申请人： HITACHI LTD
发明人： OZAWA YOSHIHIRO , SHIGENAKA NAOTO
IPC分类号： H05H7/00
摘要： PURPOSE:To reduce generation of neutron as well as tritium by forming a metal film with low saturation hydrogen concentration at the beam incident side of a beam dumper so as to have the extent of incident depth of incident particles. CONSTITUTION:In a beam dumper surface of to which incidence of high speed D particles is applied, Cu is used for a basic material 1 which is penetrated by a water pipe 2 for cooling. At the side on which D particels impinge, a thin surface layer 4 mainly made of W is arranged. Namely, W particles is applied to the Cu basic material after being ion-sputtered to form a rich W layer 3 in the basic material. After chemical deposition is performed with a W compound, the compound is dissolved by being heated at the melting temperature of the basic material or less to form only W as a thin film. It is thus possible to decrease deuterium concentration to 1/5 in the beam dump and to reduce generation of tritium and neutrons to 16% of the case of Cu.

60. 发明专利

JPH0220080B2 失效
公开(公告)号：JPH0220080B2
公开(公告)日：1990-05-08
申请号：JP17460782
申请日：1982-10-06
申请人： HITACHI LTD
发明人： OZAWA YOSHIHIRO , UCHIDA SHUNSUKE , KATSURA RYOEI
IPC分类号： G21F9/00 , G21D1/00 , G21D1/02

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