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1. 发明专利

JPS60118211A ELECTROMAGNETIC FILTER 失效
公开(公告)号：JPS60118211A
公开(公告)日：1985-06-25
申请号：JP22421583
申请日：1983-11-30
申请人： HITACHI LTD
发明人： ITOU KAZUYUKI , KUBOTA MASAYOSHI , IZUMI KENKICHI , HIROSE YASUO
IPC分类号： B01D35/06 , B03C1/032 , G21C19/46
摘要： PURPOSE:To supply a large flow amount of a backwashing liquid within a short time at the time of backwashing without using a valve and a pump, by providing a nozzle and a throttle pipe on the way of piping and providing a flowline branch pipe from the opposed part or throttled part of the nozzle. CONSTITUTION:A raw solution is introduced into a filter tower 1 from a tank 3 and the solid substance in the raw solution is collected by a magnetic body. The treated solution issued from the filter tower 1 reaches a treating tank 32 through the flowline branch pipe of a nozzle or a throttle pipe 34. During this time, the treated solution is stored in a backwashing liquid storage tank 33. Backwashing operation is performed by such a way that an electromagnetic coil 3 is demagnetized after the raw solution in a tank 31 is entirely treated and pressurized gas is sent into the backwashing liquid tank 33 through piping 37. The backwashing liquid in the tank 33 is accelerated in its flow speed by a nozzle part D or a throttle pipe E and made remarkable in its directionality. Therefore, the greater part of the backwashing liquid is supplied to the direction of a pipe A and the treated liquid in the tank 32 is added to the backwashing liquid according to a condition and a large amount of the backwashing liquid is supplied to the filter tower 1 within a short time.

2. 发明专利

JPS5992010A METHOD FOR URGENTLY STOPPING ELECTROMAGNETIC FILTER 失效
公开(公告)号：JPS5992010A
公开(公告)日：1984-05-28
申请号：JP20210782
申请日：1982-11-19
申请人： HITACHI LTD
发明人： ITOU KAZUYUKI , KUBOTA SHIYOUJI , TAKASHIMA YOSHIE
IPC分类号： B01D35/06 , B03C1/033 , G21C19/307
摘要： PURPOSE:To prevent the particles collected by a magnetic body from being carried away to a treated water side when an electromagnetic coil is urgently cut off, by cutting off a current to the electromagnetic coil after the supply of water to an electromagnetic filter is stopped when abnormality is detected. CONSTITUTION:When an electromagnetic coil unit 30 generates heat by the lowering of a cooling water flow amount to the electromagnetic coil unit 30 and the temp. thereof exceeds the set temp. of a temp. detecting apparatus 33, a bypass valve 11 is at first opened. In the next step, isolation valves 10A, 10B are closed while the supply of water to a filter tower 1 having a electromagnetic filter is stopped and, thereafter, a current to an electromagnetic coil 3 is cut off. As a result, when the electromagnetic coil 3 is urgently cut off, fine particles collected by a magnetic body can be prevented from being carried away to a treated water side and the deterioration of treated water quality can be prevented.

3. 发明专利

JPS5876115A METHOD AND APPARATUS FOR PURIFYING LIQUID 失效
公开(公告)号：JPS5876115A
公开(公告)日：1983-05-09
申请号：JP17463481
申请日：1981-11-02
申请人： HITACHI LTD
发明人： AKAMINE KAZUHIKO , EBARA KATSUYA , ITOU KAZUYUKI , MITANI SHINJI
IPC分类号： B01D35/06 , B03C1/025 , B03C1/033 , G21C19/307
摘要： PURPOSE:To simplify the cooling system of an electric coil, in a boiling water atomic power plant, by using a liquid to be treated passing through a container filled with a magnetic filter matrix in cooling the electromagnetic coil of an electromagnetic filter. CONSTITUTION:Steam generated in the pressure vessel of a nuclear reactor is sent to a turbine 2 through a main steam pipe 2 and condensed in a condenser 4. While this condensed water is pressurized by a pump 6, it is passed through the matrix of an electromagnetic filter 7 to remove clad therein and passed through the ion exchange resin of a desalting vessel 19 to remove cations and anions therein and the treated water is again supplied to the pressure vessel 1 of the nuclear reactor while pressurized by a pump 20 and heated by a heater 21. The part of the purified cooled water emitted from the desalting vessel 19 is introduced into the electromagnetic coil 13 of the electromagnetic filter 7 through an arranged pipe 22A by a pump 23 to carry out the cooling of the electromagnetic coil 13. Cooled water is again sent to the desalting vessel 19 through an arranged pipe 22B.

4. 发明专利

JPS5834040A APPARATUS FOR DRAWING OUT ION EXCHANGE RESIN 失效
公开(公告)号：JPS5834040A
公开(公告)日：1983-02-28
申请号：JP13029381
申请日：1981-08-21
申请人： HITACHI LTD
发明人： ITOU KAZUYUKI , EBARA KATSUYA , NISHIMURA SHIGEOKI , TAKAHASHI SANKICHI , KUBOTA SHIYOUJI
IPC分类号： G21F9/30 , B01J47/00 , B01J49/00 , G21F9/00 , G21F9/12
摘要： PURPOSE:To draw out the upper part of an ion exchange resin layer containing a large amount of a solid substance in a layer form, by a method wherein a resin take-out part is provided to the upper part of the ion exchange resin in a desalting vessel while a spray nozzle is provided above said resin layer. CONSTITUTION:Because impurities such as Fe adsorbed by the ion exchange resin in a desalting vessel are largely accumulated in the upper part of said resin layer, a resin draw-out pipe 8 having a valve 9 is provided to the upper part of the ion exchange resin layer 6. In addition, a spray nozzle 14 is arranged in the vicinity of the upper end part of a weir 7 and a spray nozzle 10 is arranged in the vicinity of the core axis of a container 2 between the layer 6 and a rectifying plate 18B. By this structure, a water film is formed with the upper end 23 of the weir 7 as a boundary and only the ion exchange resin 6A above the layer 6 can be drawn out in a layer form.

5. 发明专利

JPS57130000A LIQUEFIED GAS VAPORIZER 失效
公开(公告)号：JPS57130000A
公开(公告)日：1982-08-12
申请号：JP1292281
申请日：1981-02-02
申请人： HITACHI LTD
发明人： MUTSUKUSHI TOSHIKI , EBARA KATSUYA , ITOU KAZUYUKI , TAKAHASHI SANKICHI
IPC分类号： F17C9/02 , F17C7/04 , F17C13/00
摘要： PURPOSE:To prevent freezing at the liquefied gas discharge nozzle by constructing the space between inner wall and outer wall of the cover, which covers the liquefied gas discharge nozzle, in the form of a spiral passage for heating fluid to pass through. CONSTITUTION:A heating chamber 13 is formed by an inner wall 12 and an outer wall 11 of a cover which is provided with a liquefied gas discharge nozzle 16. A spiral partition 17 is provided to the heating chamber 13, so that the heating fluid flowing in from an inlet 14 can heat the all surface of the inner wall 12 and be discharged from an outlet 15. The total surface of the inner wall 12 is heated by the heating fluid. Consequently, the nozzle 16 and the inner wall 12 are positively protected from freezing.

6. 发明专利

JPS5672085A VAPORIZER FOR LIQUIFIED GAS 失效
公开(公告)号：JPS5672085A
公开(公告)日：1981-06-16
申请号：JP14895379
申请日：1979-11-19
申请人： HITACHI LTD
发明人： ITOU KAZUYUKI , EBARA KATSUYA , NISHIMURA SHIGEOKI , TAKAHASHI SANKICHI
IPC分类号： C10L3/06 , F17C9/02
摘要： PURPOSE:To reduce pumping energy for driving sea water or the like, in subjecting a liquefied gas and sea water or the like to the direct contact heat exchange under pressure, by utilizing a hydro static pressure of sea water or the like. CONSTITUTION:A surface 8 of sea water or fresh water in a liquefied gas vaporizer 1 is held so as to be positioned at a level lower than a free water surface 7 of sea water or fresh water 3 and, in a lower header 12, a distance H is set in such a condition that a hydrostatic pressure due to water head H between a gas-liquid interface of a liquefied gas and the sea water 3 and a fresh water surface 8 in higher than a desired pressure of a vaporized gas. Then, the sea water 3 is allowed to flow down into the vaporizer 1 through a valve 20 and liquefied gas 2 pressurized by a pump 21 is introduced into the header 12 from an injection nozzle 13 and directly contacted with sea water to be vaporized and the vaporized gas is collected in an upper header 11 while heated in a heat transfer pipe 10, and thereafter taken out as a high-pressure vaporized gas 4. On the other hand, a brine containing a water phase in the header 12 is introduced into a degassing apparatus 15 through a guide 14 to remove the vaporized gas 5.

7. 发明专利

JPS5895580A WATER PROCESSING METHOD 失效
公开(公告)号：JPS5895580A
公开(公告)日：1983-06-07
申请号：JP19285181
申请日：1981-12-02
申请人： HITACHI LTD
发明人： EBARA KATSUYA , ITOU KAZUYUKI , NISHIMURA SHIGEOKI , TAKAHASHI SANKICHI , KUBOTA SHIYOUJI , AKAMINE KAZUHIKO , MITANI SHINJI
IPC分类号： B01D35/06 , B03C1/025 , C02F1/48 , F22D11/00
摘要： PURPOSE:To prevent a high-gradient electromagnetic filter from corroding by increasing the concentration of dissolved oxygen in water passed through said filter to a specific range when removing corrosion products in water through the filter. CONSTITUTION:Steam generated by a nuclear eactor 40 is supplied through steam piping 42 to turbines 18 to put them in operation and then supplied to a condenser 20 where it is cooled and condensed. The obtained condensate is sucked by a condensate pump 24 and sent to a high-gradient electromagnetic filter 10 while pressurized. In this case, oxygen or hydrogen peroxide is injected into the condensate from an injection opening 26 to control the concentration of dissolved oxygen in the condensate to 30-1,000ppb. Then, the condensate entering the filter 10 forms an oxidized film on the surface of a magnetic thin wire in the filter part to prevent the corrosion of the thin wire. The condensate from which a clad is adsorbed and removed by the filter 10 is guided to a desalting device 28 to remove ions, and then supplied to a furnace 40 through a feed water pump 34 and feed water heaters 36 and 38.

8. 发明专利

JPS5892464A COLUMN FOR SEPARATING ION-EXCHANGE RESIN 失效
公开(公告)号：JPS5892464A
公开(公告)日：1983-06-01
申请号：JP19085081
申请日：1981-11-30
申请人： HITACHI LTD
发明人： ITOU KAZUYUKI , EBARA KATSUYA , NISHIMURA SHIGEOKI , TAKAHASHI SANKICHI , KUBOTA SHIYOUJI
IPC分类号： C02F1/42 , B01J49/00
摘要： PURPOSE:To withdrawn anion-exchange resin only without disturbing the layer of cation-exchange resin, by providing a gate in a manner such that its one end is placed at the side wall of a separating column while the other end is placed at a boundary surface between said resins, and means for withdrawing, opening or closing and sprinkling water at said part. CONSTITUTION:In a column 1 for separating ion-exchange resin, a gate 2 whose one end comes in contact with the side wall 1A of the separating column and whose other end is placed at the layer of ion-exchange resin is provided. The end 2A of the gate 2 at the layer of ion-exchange resin in arranged in a manner such that it comes at a boundary surface between the layer A of anion-exchange resin and the layer C of cation-exchange resin during withdrawing the layer A of the anion-exchange resin. In an annular space 3 between the gate 2 and the side wall 1A of the separating column, a means for opening or closing and means 4, 5 for sprinkling water from the upper or inner part of the resin layer are provided. Consequently, a water film is formed at the boundary surface, so that the anion-exchange resin only can be withdrawn without disturbing the layer of the cation-exchange resin during withdrawing the anion-exchange resin.

9. 发明专利

JPS57127197A Liquefied gas evaporator 失效
标题翻译：液化气体蒸发器
公开(公告)号：JPS57127197A
公开(公告)日：1982-08-07
申请号：JP1022081
申请日：1981-01-28
申请人： Hitachi Ltd
发明人： MUTSUKUSHI TOSHIMI , EBARA KATSUYA , ITOU KAZUYUKI , TAKAHASHI SANKICHI
IPC分类号： F17C9/02 , F17C7/04 , F17C13/00 , F23K5/00
CPC分类号： F17C7/04 , F17C2201/0109 , F17C2223/0153 , F17C2227/0318
摘要： PURPOSE:To contrive to micrify bubbles flowing out of the jetting part of liquefied gas so as to prevent the heat-exchanging ability of the evaporator from lowering by a method wherein a discharge nozzle of liquefied gas is enclosed with a cover with an open lower end shaped in ziazag. CONSTITUTION:For the liquefied gas evaporator 1 which gasified liquefied gas by directly contacting with a heating medium such as sea water, fresh water or the like, the discharge nozzle 3 of the liquefied gas is enclosed with the cover 4 with the open lower end. The lower end of the cover 4 is located below the liquid surface of the heating medium and the gas-liquid boundary surface 5, which is held by the pressure of evaporated gas, is provided at the lower end 17 shaped in zigzag 19 of said cover 4. Accordingly, no large lump of bubble is generated from the jetting part of liquefied gas, resulting in enabling to obtain the liquefied gas evaporator with excellent heat-exchanging ability.
摘要翻译：目的：为了使流出液化气喷射部分的气泡微气雾化，以防止蒸发器的热交换能力降低，其中液化气体的排放喷嘴用敞开的下端封闭形状在ziazag。构成：对于通过与诸如海水，淡水等的加热介质直接接触来气化了液化气体的液化气体蒸发器1，液化气体的排放喷嘴3以敞开的下端与盖4一起包围。盖4的下端位于加热介质的液面的下方，并且由蒸发气体的压力保持的气液边界面5设置在形成为所述盖的之字形19的下端17处因此，从液化气体的喷射部分不产生大的气泡，从而能够获得具有优异的热交换能力的液化气体蒸发器。

10. 发明专利

JPS5771643A Method for mixing ion exchange resin for regeneration desalting device 失效
标题翻译：用于再生脱盐装置的离子交换树脂的混合方法
公开(公告)号：JPS5771643A
公开(公告)日：1982-05-04
申请号：JP14838480
申请日：1980-10-24
申请人： Hitachi Ltd
发明人： ITOU KAZUYUKI , EBARA KATSUYA , NISHIMURA SHIGEOKI , TAKAHASHI SANKICHI , KUBOTA SHIYOUJI , TAKASHIMA YOSHIE
IPC分类号： C02F1/42 , B01J47/04
摘要： PURPOSE:To certainly exhibit capacity of a mixed bed type desalting device by a method wherein a pipe is arranged to a side surface of mixing tower to connect and communicate an upper part and a lower part of said tower and water and air are supplid into the connecting arranged pipe in an upwardly directed stream at a high speed to uniformly mix both anion and cation exchange resins. CONSTITUTION:To a side of a mixing tower, a connecting arranged pipe 2 connecting a lower part and an upper part of said tower is provided. In mixing an ion exchange resin, water 10 and air 11 are supplied into the mixing tower 1 through a nozzle and vigorously stirred in said tower 1. At the same time, water 10 and air 11 are supplied into the connecting arranged pipe 2 in an upwardly directed stream at a speed higher than that of a tower inside and the ion exchange resin in the lower part of the tower 1 is recirculated to the upper part of said tower 1. By this method, a cation exchange resin slurry with a high specific gravity in the lower part of the tower 1 is recirculated into an anion exchange resin part with a low specific gravity in the upper part of the tower 1 and both ion exchange resins are mixed so as to make a ratio thereof uniform. This mixing method can be suitable applied to the regelation desalting device of a boiling water reactor power plant.
摘要翻译：目的：通过一种方法来确定混合床式脱盐装置的容量，其中管道布置在混合塔的侧面以连接和连通所述塔的上部和下部，水和空气被供应到以高速连接布置在向上的流中的管，以均匀混合阴离子和阳离子交换树脂。构成：设置在混合塔的一侧，连接有塔的下部和上部的连接配置管2。在混合离子交换树脂时，将水10和空气11通过喷嘴供入到混合塔1中并在塔1中剧烈搅拌。同时，将水10和空气11供应到连接布置的管2中向上定向的流以比内部的塔的速度高的速度，塔1的下部的离子交换树脂再循环到塔1的上部。通过这种方法，具有高特异性的阳离子交换树脂浆料塔1的下部的重力在塔1的上部被再循环到低比重的阴离子交换树脂部分中，并且两个离子交换树脂混合以使其比例均匀。该混合方法适用于沸水反应堆发电厂的再生脱盐装置。

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