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    • 53. 发明专利
    • Method for backwashing of hollow fiber membrane and hollow fiber membrane water treatment apparatus
    • 中空纤维膜和中空纤维膜处理设备的回洗方法
    • JP2006255708A
    • 2006-09-28
    • JP2006185355
    • 2006-07-05
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • TAMAI MASATOSHINISHIYAMA TORUKATAYAMA KENICHINAGAYASU HIROTSUGUUEJIMA NAOYUKIYOSHIMI KATSUJI
    • B01D65/02B01D63/02C02F1/44
    • PROBLEM TO BE SOLVED: To provide a method for backwashing of a hollow fiber membrane that can reduce the number of times of flash backwashing causative of lowered durability of the hollow fiber membrane and can reliably remove fouling components sticking to the hollow fiber membrane.
      SOLUTION: In this method for backwashing, raw water containing suspended solids is supplied into a shell in a filtration module and is passed through a hollow fiber membrane installed within the shell to conduct filtration treatment. After this water passing step, deposits on the membrane surface and within the fiber layer in the hollow fiber membrane are removed. A blow backwashing step is provided for discharging substantially the whole quantity of concentrated water remaining on the shell side of the filtration module to the outside of the shell. The blow backwashing step is carried out by allowing both the shell side and the lumen side of the filtration module to undergo the supply of air.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种中空纤维膜的反冲洗方法,其可以减少中空纤维膜的耐久性降低引起的闪蒸反冲洗次数,并可以可靠地除去粘附在中空纤维膜上的结垢成分 。 解决方案:在这种反洗方法中,将含有悬浮固体的原水提供到过滤组件的壳中,并通过安装在壳体内的中空纤维膜进行过滤处理。 在该水通过步骤之后,去除在中空纤维膜上的膜表面和纤维层内的沉积物。 提供吹扫反冲洗步骤,用于将剩余在过滤模块的壳侧上的大量浓缩水基本上排放到壳体的外部。 吹扫反洗步骤通过使过滤组件的壳侧和内腔侧能够进行空气进行。 版权所有(C)2006,JPO&NCIPI
    • 54. 发明专利
    • Natural gas hydrate formation system and its formation method
    • 天然气水合物形成系统及其形成方法
    • JP2006241188A
    • 2006-09-14
    • JP2005054868
    • 2005-02-28
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • NAGAYASU HIROTSUGUKIMURA TAKAHIRO
    • C10L3/06
    • PROBLEM TO BE SOLVED: To provide a formation system of natural gas hydrate having a low water content and a high gas content. SOLUTION: The natural gas hydrate formation system is equipped with a formation reaction apparatus 1 for causing natural gas to react with water at a temperature higher than the freezing point under a pressure higher than atmospheric pressure to form natural gas hydrate, a physical dehydration apparatus 2 for physically dehydrating the formed natural gas hydrate, a hydration dehydration apparatus 3 for causing remaining water contained in the natural gas hydrate to react with natural gas in the course of dehydration or after dehydration to form natural gas hydrate, a cooling apparatus 4 for cooling the formed natural gas hydrate, and a decompression-to-atmospheric pressure means 5 for reducing the pressure of the cooled natural gas hydrate to atmospheric pressure, where the temperature in the hydration dehydration apparatus 3 is adjusted to the freezing point or lower. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供具有低含水量和高含气量的天然气水合物的形成系统。 解决方案:天然气水合物形成系统配备​​有形成反应装置1,用于使天然气在高于大气压的压力下在高于冰点的温度下与水反应以形成天然气水合物,物理 用于使形成的天然气水合物物理脱水的脱水装置2,用于使天然气水合物中包含的剩余水在脱水过程中或脱水之后与天然气反应以形成天然气水合物的水合脱水装置3,冷却装置4 用于冷却形成的天然气水合物,以及减压至大气压力装置5,用于将水合脱水装置3中的温度调节至凝固点或更低温度,将冷却的天然气水合物的压力降低至大气压。 版权所有(C)2006,JPO&NCIPI
    • 56. 发明专利
    • Apparatus for hydrate production
    • 水泥生产设备
    • JP2005213359A
    • 2005-08-11
    • JP2004021527
    • 2004-01-29
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • KIMURA TAKAHIRONAGAYASU HIROTSUGUYOSHIKAWA KOZOFUJIMOTO TETSUO
    • C10L3/06
    • PROBLEM TO BE SOLVED: To provide an apparatus for hydrate production, which is compacted, inexpensively manufactured, is readily installed and can improve dehydration efficiency. SOLUTION: In the apparatus for hydrate production with which the hydrate is produced by reacting water with natural gas in a formation vessel, the formation vessel is arranged so as to make the axial center horizontal to form an oblong formation vessel and water is sprayed from a ceiling part in the formation vessel. The formation vessel is made into a cylindrical oblong shape, the opening of the tip part of a dehydrator to take in the hydrate is laid so as to locate under a surface in the vicinity of the surface for hydrate floating. The dehydrator is a screw press type dehydrator, its arrangement and inclination and a raking means for hydrate floating on a surface in the formation vessel are devised. COPYRIGHT: (C)2005,JPO&NCIPI
    • 待解决的问题:为了提供压实,廉价制造的水合物生产装置,容易安装并且可以提高脱水效率。 解决方案:在水合物生产装置中,水合物通过水与天然气在地层容器中反应而产生,地层容器布置成使轴向中心水平形成长圆形地层容器,水是 从地层船的天花板部分喷洒。 将形成容器制成圆筒形的长方形,将脱水器的前端部分的开口放入水合物中,以便位于表面附近的水合物漂浮表面下方。 脱水机是一种螺旋压榨式脱水机,其布置和倾斜以及在地层容器中表面浮选的水合物的耙装置。 版权所有(C)2005,JPO&NCIPI
    • 58. 发明专利
    • Method and system for forming natural gas hydrate
    • 形成天然气水合物的方法和系统
    • JP2004244496A
    • 2004-09-02
    • JP2003034989
    • 2003-02-13
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • KIMURA TAKAHIRONAGAYASU HIROTSUGUUEJIMA NAOYUKIYOSHIKAWA KOZO
    • C07B63/00C07B63/02C10L3/06
    • PROBLEM TO BE SOLVED: To provide a system for continually and stably forming natural gas hydrate and extracting it after solidified. SOLUTION: A method for forming the natural gas hydrate is provided, comprising the steps of forming the natural gas hydrate by reaction between natural gas and feedstock water in a pressure vessel 20 and dehydrating the thus formed natural gas hydrate. The system works as follows: The feedstock water containing the natural gas hydrate is concentrated to raise the concentration of the natural gas hydrate, and such a quantity of the resultant water with the concentrated natural gas hydrate nearly equal to that of the natural gas hydrate formed per unit time in the pressure vessel 20 is extracted from the pressure vessel 20 each unit time and dewatered. COPYRIGHT: (C)2004,JPO&NCIPI
    • 要解决的问题:提供一种连续稳定地形成天然气水合物并在固化后提取的系统。 解决方案:提供一种形成天然气水合物的方法,包括以下步骤:通过在压力容器20中天然气和原料水之间的反应形成天然气水合物,并将由此形成的天然气水合物脱水。 该系统工作原理如下:将含有天然气水合物的原料水浓缩,提高天然气水合物的浓度,使天然气浓缩水合成的水分几乎与形成的天然气水合物相同 压力容器20中的每单位时间每单位时间从压力容器20中抽出并脱水。 版权所有(C)2004,JPO&NCIPI