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1. 发明专利

JPH0599724A AUTOMATICALLY CALIBRATING GAS FLOWMTER 失效
公开(公告)号：JPH0599724A
公开(公告)日：1993-04-23
申请号：JP26197891
申请日：1991-10-09
申请人： MITSUBISHI HEAVY IND LTD
发明人： UEJIMA NAOYUKI , KAWAMURA WATARU , HATANO SHIGEKAZU , NISHIHARA YUKIO , SATO AKIO
IPC分类号： G01F1/50 , G01F15/02 , G01F15/04
摘要： PURPOSE:To accurately measure the flow rate of a gas even when the composi tion of the gas changes during measurement by detecting the composition of the gas and correcting the measured flow rate value of the gas based on the composition detected result of the gas. CONSTITUTION:This gas flowmeter 3 measures the flow rate of a gas 2 to be measured and outputs an electric signal 9 to a second signal converter 8. An He concentration analyzer 5 measures the He concentration of the sample 10 of the gas 2 supplied through a bypass pipe 4 and outputs electric signals 11 and 12 to a first and the second signal converters 7 and 8. A mass flowmeter 6 supplies the sample 10 to the analyzer 5 by a fixed amount and outputs an electric signal 13 to the first signal converter 7 as the flow rate of the 10. The converter 7 accurately finds the actual flow rate of the sample 10 by performing arithmetic operation on the basis of the signals 12 and 13 and outputs an electric signal 14 to the flowmeter 6 so that the glow rate of the sample 10 can always become a set value. The second signal converter 8 can accurately find the actual flow rate of the gas 2 to be measured by performing arithmetic operation on the basis of the signals and 11.

2. 发明专利

JPH04102100A TREATMENT OF USED RADIOACTIVE ION EXCHANGE RESIN 失效
公开(公告)号：JPH04102100A
公开(公告)日：1992-04-03
申请号：JP21903190
申请日：1990-08-22
申请人： MITSUBISHI HEAVY IND LTD
发明人： NISHIHARA YUKIO , WAKUTA KUNIHARU , KOHANAWA OSAMU , INAGAKI YUZO , MIYAMOTO HITOSHI
IPC分类号： G21F9/30 , G21F9/04
摘要： PURPOSE:To effectively control the number of production of drum cans in accordance with a small capacity of a concentrated waste liquid storage tank by dividing elution operation into three stages in accordance with the radioactive concentration of waste resin or elution liquid. CONSTITUTION:Waste resin of an elution tank 1 is immersed in acid solution to elute radioactive materials which resin has. Next, the elution solution is supplied to the left chamber of a diffusion dialysis tank 2 and the acid solution of the elution solution is separated to recover into the right chamber thereof to reuse in the tank 1. The acid solution is almost recovered and waste liquid containing a large quantity of radioactive materials is drained from the upper part of the left chamber of the tank 2. After the waste liquid of high radioactive concentration produced during the initial stage of elution operation is supplied to a first neutralization tank 3 to neutralize with alkali solution, it is evaporated and concentrated in a concentrator 6. Since its concentration is high, it is stored in a first batch tank 7 during a long term to solidify after radioactivity attenuation. After the waste liquid during an intermediate term of operation is supplied to a second neutralization tank 4, neutralization, evaporation and concentration are performed to solidify after it is supplied to a second batch tank 8. After the waste liquid during the later term of the operation is supplied to a third neutralization tank 5, neutralization is performed to fully lower radioactivity concentration so as to drain into a liquid waste disposal system.

3. 发明专利

JPS63274899A METHOD FOR REMOVING IODINE IN USED NUCLEAR FUEL SOLUTION 失效
公开(公告)号：JPS63274899A
公开(公告)日：1988-11-11
申请号：JP10976987
申请日：1987-05-07
申请人： MITSUBISHI HEAVY IND LTD
发明人： NISHIHARA YUKIO , MIYAMOTO HITOSHI , FUNAKOSHI TOSHIO , KAWAMURA WATARU , INAGAKI YUZO
IPC分类号： G21C19/46
摘要： PURPOSE:To decrease the environmental release of iodine and to lower the amt. of waste to be generated as well as to reduce running and equipment costs by bringing nitric acid in which used nuclear fuel is dissolved into contact with active carbon attached with AgCl or PbCl2. CONSTITUTION:The nitric acid in which the used nuclear fuel is dissolved is gathered through an inlet line 1 into a soln. receiving tank 2 and is fed by a soln. feed pump 3 through an inlet line 4 of an inorg. ion exchanger packed column into the inorg. ion exchanger packed column 5 where the iodine is adsorbed and removed. The active carbon attached with AgCl or PbCl2 is packed in the column 5 and the soln. is brought into contact with this active carbon. The iodine (the chemical form is IO3 ) remaining in the soln. comes into contact with the surface of the active carbon which is the inorg. ion exchanger, by which part thereof is reduced to I2 and IO3 is subjected to an exchange with an exchange group Cl . I2 is adsorbed by physical adsorption to the active carbon. The active carbon adsorbed of the iodine is ejected from an outlet line 6 of the inorg. ion exchanger and is sent to a solidifying device, by which the stable solidified matter is obtd.

4. 发明专利

JPS6232398A METHOD OF SOLIDIFYING RADIOACTIVE WASTE 失效
公开(公告)号：JPS6232398A
公开(公告)日：1987-02-12
申请号：JP17174285
申请日：1985-08-06
申请人： KOUCHI UNIV , MITSUBISHI HEAVY IND LTD
发明人： YAMAZAKI NAKAMICHI , KIZAWA HIDEO , NISHIHARA YUKIO , KASHIWAI TOSHIHIKO , MIYAMOTO HITOSHI , FUNAKOSHI TOSHIO
IPC分类号： G21F9/30 , G21F9/00

5. 发明专利

JPS629298A TREATER FOR CHEMICAL DECONTAMINATING LIQUID 失效
公开(公告)号：JPS629298A
公开(公告)日：1987-01-17
申请号：JP14679885
申请日：1985-07-05
申请人： MITSUBISHI HEAVY IND LTD
发明人： KIZAWA HIDEO , NISHIHARA YUKIO , NAKAZUMI KAZUO
IPC分类号： G21F9/08 , G21F9/00 , G21F9/06 , G21F9/12 , G21F9/16

6. 发明专利

JPS61120618A Apparatus for dehumidifying solid adsorbent 失效
标题翻译：去除固体吸附剂的装置
公开(公告)号：JPS61120618A
公开(公告)日：1986-06-07
申请号：JP24043084
申请日：1984-11-16
申请人： Mitsubishi Heavy Ind Ltd
发明人： NISHIHARA YUKIO , KOBANA KAZUHARU , MINEMOTO MASAKI , FUNAKOSHI TOSHIO , UEJIMA NAOYUKI
IPC分类号： B01D53/26 , B01D53/04 , G21F9/02
摘要： PURPOSE: To simplify a system by reducing the flow amount of regeneration gas and reducing the capacities of a rare gas hold-up apparatus and a dehumidification apparatus, by bringing a dehumidification tower to a direct heating system and returning gas after regeneration to the waste gas line of an apparatus inlet.
CONSTITUTION: The waste gas 1 of an atomic power plant is passed through a cooler 2 and a dehumidifier 4 to preliminarily remove hygroscopic moisture and dehumidified in a dehumidication tower 8 to be sent to a rare gas hold-up apparatus 20. A dehumidification tower 12 is heated by a heater 9 to desorb adsorbed hygroscopic moisture and this desorbed hygroscopic moisture is exhausted by a small flow amount of regeneration gas 19 to be returned to the line of waste gas 1 of the apparatus inlet through a valve 17 and sent to the cooler 2 and the dehumidifier 4 along with the waste gas to preliminarily remove hygroscopic moisture while the dehumidified gas is further dehumidified by the dehumidification tower 8 to be sent to the rare gas hold-up apparatus 20. By this method, a regeneration gas cooler and the dehumidifier can be used in common in the waste gas side.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过减少再生气体的流量和降低稀有气体滞留装置和除湿装置的容量来简化系统，通过将除湿塔排入直接加热系统并将再生后的废气再循环到废气中设备入口线。构成：原子能发电厂的废气1通过冷却器2和除湿器4，以预先除去吸湿水分并在除湿塔8中除湿，送到稀有气体保持装置20中。除湿塔12 被加热器9加热以解吸吸附的吸湿性水分，并且该解吸的吸湿水分被少量的再生气体19排出，以通过阀17返回到设备入口的废气1的管线并被送到冷却器 2和除湿器4连同废气一起预先除去吸湿水分，同时除湿气体通过除湿塔8进一步除湿，送到稀有气体保持装置20中。通过这种方法，再生气体冷却器和除湿器可以在废气侧普遍使用。

7. 发明专利

JPS61117499A Method of solidifying radioactive waste 失效
公开(公告)号：JPS61117499A
公开(公告)日：1986-06-04
申请号：JP23847984
申请日：1984-11-14
申请人： Mitsubishi Heavy Ind Ltd
发明人： MIYAMOTO HITOSHI , FUNAKOSHI TOSHIO , NISHIHARA YUKIO , INAGAKI YUZO
IPC分类号： G21F9/30 , G21F9/00

8. 发明专利

JPH01184498A METHOD FOR SOLIDIFYING RADIOACTIVE SLUDGE BY WATER HEAT 失效
公开(公告)号：JPH01184498A
公开(公告)日：1989-07-24
申请号：JP758388
申请日：1988-01-19
申请人： MITSUBISHI HEAVY IND LTD
发明人： NISHIHARA YUKIO , TANII TADAAKI , MIYAMOTO HITOSHI
IPC分类号： G21F9/06 , G21F9/00 , G21F9/16
摘要： PURPOSE:To solidify radioactive sludge as a stable synthetic rock having a high volume reducing property by putting the radioactive sludge and the compressed filter body of the solidified substrate thereof into a container and solidifying the same in this state by water heat. CONSTITUTION:A mixture composed of the solidified substrate essentially consisting of SiO2 and an alkali additive is charged into a cylinder 2 corresponding to the solidifying container and is compressively molded under about 300kg/cm pressure to form a filter layer 9 having the molding thickness of about 1/10 the bore of the cylinder 2. The mixture 5 prepd. by mixing the pseudo radioactive sludge, the solidified substrate and the alkali additive at 3:0.8:0.2 ratio is charged onto the previously formed filter layer 9 in the cylinder 2 and is compressively filtered by the filter layer 9 under about 300kg/cm compression pressure. The filter water to be discharged from the lower part of the filter layer at this time is discharged through a discharge pipe 7 and a discharge valve 8 to the outside of the cylinder 2. Since the filter layer 9 consists of the solidified substrate and additive which are the same as the mixture 5 thereon, both the filter layer and the mixture are integrated by the solidification reaction.

9. 发明专利

JPS63313098A METHOD FOR SOLIDIFYING CALCIUM PYROPHOSPHATE 失效
公开(公告)号：JPS63313098A
公开(公告)日：1988-12-21
申请号：JP14811487
申请日：1987-06-16
申请人： MITSUBISHI HEAVY IND LTD
发明人： TANII TADAAKI , FUNAKOSHI TOSHIO , MIYAMOTO HITOSHI , NISHIHARA YUKIO
IPC分类号： G21F9/16 , G21F9/00 , G21F9/30
摘要： PURPOSE:To obtain a solidified body of synthetic rock which has excellent physical and chemical stability and is suitable for final disposition by mixing calcium pyrophosphate with amorphous silicic acid and sodium phosphate hydrate and maintaining the mixture under specific temp. and pressure conditions. CONSTITUTION:The solidified body of the synthetic rock is obtd. by mixing the calcium pyrophosphate with amorphous silicic acid and sodium phosphate hydrate and maintaining the mixture under the conditions of 150-350 deg.C and 100-500kg/cm pressure. SHIRASU, sodium siliate, etc., are used for the amorphous silicic acid. Sodium phosphate of dodecahydrate is generally used as the sodium phosphate hydrate. A hexahydrate is usable as well if some water exists in the calcium pyrophosphate and the amorphous silicic acid, etc. The strength is lower with an increase in the ratio of the calcium pyrophosphate in the rock synthesis reaction, but the calcium pyrophosphate is required to be added at about the ratio at which the synthetic rock withstands practicable strength for the purpose of solidifying the calcium pyrophosphate. Since the operating temp. is as relatively low as about

10. 发明专利

JPS6247400A COOLER IN DRYCLEANING APPARATUS 失效
公开(公告)号：JPS6247400A
公开(公告)日：1987-03-02
申请号：JP18883085
申请日：1985-08-28
申请人： MITSUBISHI HEAVY IND LTD
发明人： KOHANAWA OSAMU , NISHIHARA YUKIO , HASHIBA KENJI , YAMAMOTO MASAO
IPC分类号： D06F43/00

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