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    • 63. 发明专利
    • Compound plant
    • 化合物厂
    • JPS5963310A
    • 1984-04-11
    • JP6742282
    • 1982-04-23
    • Hitachi Ltd
    • BETSUSHIYO TAISUKEOOGA KOUJISATOU TAKAOOZAWA YOSHIHIROYAMAMOTO HAJIME
    • F01K23/04
    • F01K23/04
    • PURPOSE:To provide higher overall generated power in a compound plant designed that the secondary power generating system is caused to generate power with the aid of waste heat of the primary power generating system by controlling the operating condition of working fluid as to maximize the power of the secondary system without changing the generated capacity of the primary system. CONSTITUTION:In a system, for example, wherein an evaporator 5, namely, a condenser of a primary system nuclear power plant recovers waste heat and power is then generated in a secondary system which uses ammonia as working fluid, a controller 25 computes the physical properties of a plurality of fluids and the operating condition of the working fluids is determined on the bases of the thermal income and expenditure of each of the turbine 14, the evaporator 5 and a condenser 16 of the seconday system according to those factors of the preset value and temperature of the working fluid in the secondary system at the inlet of the evaporator 5, the temperature at the outlet thereof and the pressure inside the condenser 16. And the capacity of generated power is calculated and searched by use of a criterion function of a Rankine cycle. The working fluid is then controlled under the determined operating condition. Waste heat may be effectively used without changing the operating condition of the primary system which has great capacity of generated power, and hence the entire generated power may be obtained at higher level.
    • 目的:为了在复合工厂中提供更高的整体发电功率,设计通过控制工作流体的工作状态,使二次发电系统借助主发电系统的余热发电,从而最大化功率 辅助系统不改变主系统的生成能力。 构成:例如,在系统中,其中蒸发器5,即主系统核电站的冷凝器回收废热,然后在使用氨作为工作流体的二次系统中产生功率,控制器25计算物理 多个流体的性质和工作流体的操作条件是根据第二系统的涡轮机构14,蒸发器5和冷凝器16的热收入和支出,根据预设的这些因素确定的 在蒸发器5入口处的二次系统中的工作流体的温度,值和温度,出口处的温度和冷凝器16内的压力。通过使用蒸发器5的标准函数来计算和搜索所产生的功率的能力 兰金循环。 然后在确定的操作条件下控制工作流体。 可以有效地使用废热,而不改变具有大功率发电能力的主系统的工作状态,因此可以在更高的水平获得整个发电量。
    • 64. 发明专利
    • Dissolved oxygen meter equipped with electrode for removing interfering component
    • 装有电极的溶解氧气测试仪用于去除干扰组分
    • JPS593345A
    • 1984-01-10
    • JP11169582
    • 1982-06-30
    • Hitachi Eng Co LtdHitachi Ltd
    • OZAWA YOSHIHIROUCHIDA SHIYUNSUKENAKAYAMA NORIO
    • G01N27/404G01N27/49
    • G01N27/404
    • PURPOSE:To prevent interfering components from diffusing into the surface of a porous metal, by installing an electrode for removing the interfering components on the backside of the porous metal cathode of a dissolved oxygen meter. CONSTITUTION:An electrolytic soln. 3 is sealed in, and a porous metal cathode 1 is installed on the backside of an oxygen permeable membrane 6 to form the present dissolved oxygen meter. An electrically conductive metal, such as Au, Ag, or Pt, provided with through-holes only through which the electrolytic soln. is connected between the inside and outside is arranged near the cathode 1 to form the electrode 2 for removing interfering components. This electrodes 2 and an anode 4 are connected with a wire, and the potential difference between both electrodes 2, 4 is kept equal to that of the electrode 1 and an anode 5. Dissolved oxygen and the interfering components, such as ions in the electrolytic soln. 3 are reduced when diffusing and passing through the through-holes of the electrode 2. Hence, it can be prevented to cause interfering electric current.
    • 目的:为了防止干扰成分扩散到多孔金属表面,通过安装用于去除溶解氧计多孔金属阴极背面的干扰成分的电极。 构成:电解溶液。 密封在其中,多孔金属阴极1安装在透氧膜6的背面,形成本溶解氧计。 诸如Au,Ag或Pt的导电金属,仅设有通孔,电解溶液通过该通孔。 连接在内部和外部之间的阴极1设置在阴极1附近以形成用于去除干扰成分的电极2。 该电极2和阳极4与导线连接,两电极2,4之间的电位差与电极1和阳极5的电位差保持相同。溶解的氧和干扰成分例如电解质中的离子 SOLN。 3在扩散并通过电极2的通孔时减少。因此,可以防止其引起干扰电流。
    • 65. 发明专利
    • Heat exchanger
    • 热交换器
    • JPS58195782A
    • 1983-11-15
    • JP7836582
    • 1982-05-12
    • Hitachi Ltd
    • BETSUSHIYO TAISUKESATOU TAKAOYAMAMOTO HAJIMEOOGA KOUJIOZAWA YOSHIHIRO
    • F28D7/00F28D7/02
    • F28D7/00F28D7/024
    • PURPOSE:To increase the heat exchanging rate and to improve a thermal hydraulic stability, by consisting a vessel divided into two piping zone on the high and the low sides, in a heat exchanger for complex of steam power plant combined with a low-temperature heating medium power generating plant. CONSTITUTION:A heat exchanger 6 is divided into two zones A and B by a partition wall 31. The steam in high-temperature on the primary side is fed into a zone A from an inlet 1. Heat is exchanged with a medium in cold temperature on the secondary side which is flowing through a piping 29 consisting of thermo-excel for condensation, so that the steam is condensed. Then the condensed water flows into a piping 30 consisting of a thermo-excel for evaporation. On the other hand, the secondary medium being heated during circulating through the piping 29 is fed into the zone B from an inlet 34, and the heat is exchanged further with the medium from the primary side in the piping 30, evaporated, and is fed into a low-temperature power plant from an outlet 5. With such an arrangement, both condensation of steam and evaporation of low-temperature heating medium are taken place at the same time, the heat exchanging rate is increased, therefore, thermal hydraulic stability can be obtained.
    • 目的:为了提高热交换率,提高热液压稳定性,通过在高低侧分为两个管道区域,在蒸汽发电厂的复合热交换器中结合低温加热 中型发电厂。 构成:热交换器6通过分隔壁31分成两区A和B.初级侧的高温蒸汽从入口1供给到区域A.热量在低温下与介质交换 在二次侧流过由热交换器组成的管道29进行冷凝,从而使蒸汽冷凝。 然后冷凝的水流入由用于蒸发的热成型件组成的管道30中。 另一方面,在通过管道29循环过程中被加热的二次介质从入口34进料到区域B中,并且热量从管道30中的初级侧与介质进一步交换,蒸发并进料 通过这样的布置,同时发生蒸汽冷凝和低温加热介质的蒸发,热交换率增加,因此热液压稳定性可以 得到。
    • 67. 发明专利
    • Method for removal of organic matter in uranium desorbing liquid
    • 在铀溶液中去除有机物的方法
    • JPS57127427A
    • 1982-08-07
    • JP1016981
    • 1981-01-28
    • Hitachi Ltd
    • YAMASHITA HISAOFUJITA KAZUNORIMAEKOYA CHIAKIOZAWA YOSHIHIRO
    • B01D15/00B01D59/26
    • PURPOSE: To remove only the org. matter in the desorbing liquid wherein the U in sea water adsorbed in adsorbents is desorbed with carbonate by adding porous bodies of an org. high-polymer compound having no ion exchange groups into said liquid.
      CONSTITUTION: U in sea water is adsorbed in adsorbents, and after this is desorbed with carbonate, porous bodies of an org. high-polymer compound having no ion exchange groups are added into such desorbing liquid. Thereby only the org. matter in the desorbing liquid is adsorbed away in said porous bodies and is removed. Here, if said porous bodies have ion exchange groups such as OH, SO
      3 H, NH
      2 , COOH or the like, not only the org. matter but U as well are adsorbed. In this method, only the org. matter in the desorbing liquid is removed and therefore the degradation in the U desorption performance of the desorbents is obviated, and the separation and concn. are accomplished efficiently. Polystyrene, a styrene-divinylbenzene copolymer, etc. are suitable for said porous bodies.
      COPYRIGHT: (C)1982,JPO&Japio
    • 目的:仅删除组织。 通过添加有机物的多孔体,吸附在吸附剂中的海水中的U被碳酸盐解吸的脱附液中的物质。 在所述液体中没有离子交换基团的高分子化合物。 构成:海水中的U被吸附在吸附剂中,此后用碳酸盐解吸,有机体的多孔体。 将不含离子交换基团的高分子化合物加入到这样的解吸液中。 从而只有组织。 解吸液中的物质被吸附在所述多孔体中并被除去。 这里,如果所述多孔体具有OH,SO 3 H,NH 2,COOH等离子交换基团, 但是U也被吸附。 在这种方法中,只有组织。 去除液体中的物质被去除,因此解吸剂的U解吸性能的降低被消除,并且分离和浓缩。 有效地完成。 聚苯乙烯,苯乙烯 - 二乙烯基苯共聚物等适用于所述多孔体。
    • 68. 发明专利
    • SEAWATER URANIUM COLLECTING METHOD
    • JPS5641834A
    • 1981-04-18
    • JP11730679
    • 1979-09-14
    • HITACHI LTD
    • FUJITA KAZUNORIYAMASHITA HISAONAKASHIMA FUMITOOZAWA YOSHIHIRO
    • C22B60/02C01G43/00
    • PURPOSE:To efficiently collect U by using a magnetic adsorbent and combining a slury adsorbing method and a magnetic separation method to perform solid-liq. separation and adsorption with one magnetic separator. CONSTITUTION:Seawater drawn with pump 1 is stored in discharged seawater tank 3 after removing suspended matter with sand filter 2. This seawater is brought into contact with a magnetic adsorbent in slurry adsorbing tank 5 to allow U to be adsorbed with stirring, and the resulting slury is fed to high gradient separator 7 with pump 6 and separated into the adsorbent and seawater. The seawater is stored in discharged seawater tank 4. A washing liq. in tank 10 is supplied to separator 7 to wash the adsorbent, and then a desorbing liq. in tank 11 is supplied to separator 7 to allow the U in the adsorbent to be desorbed. The washing liq. is further supplied to separator 7 with pump 9 to wash the adsorbent, and the early-stage washing liq. is stored in tank 12. Magnetic valves 14, 17, 19 are opened to fed seawater in tank 3 to separator 7, and the seawater is fed to tank 5 together with the adsorbent.
    • 70. 发明专利
    • STOPPING METHOD FOR STEAM TURBINE
    • JPS569608A
    • 1981-01-31
    • JP8263579
    • 1979-07-02
    • HITACHI LTD
    • UCHIDA SHIYUNSUKEKITAMURA MASAOOZAWA YOSHIHIRO
    • F01D21/00
    • PURPOSE:To reduce the rpm of a steam turbine in a short time period by applying a load to the turbine through shorting output terminals of a generator and supplying an excitation current to a rotor and then remove the necessity of vacuum break in a steam condenser. CONSTITUTION:A short-circuit of output terminals 40 of a generator 30, directly connected to turbines 2 and 3, and an application of an excitation current to a rotor as a load permits rotation energy to be converted to an electric current which flows through a closed circuit of a stator and causes the current to be consumed as a heat energy. This serves to apply a break force onto the turbines 2 and 3, reducing their revolution speeds in a short time period. The above-stated procedure can reduce promptly the rotation speed of a turbine, which is rotating at an rpm in a dangerous rotation speed range, without causing any vacuum breaking in a steam condensor, thereby solving the discharge problem of radio active substances from the steam condenser resulted from a mechanical vacuum pump operation and reducing the discharge rate of radioactive substances from a stack.