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    • 3. 发明专利
    • 精製ガス供給装置及び製造ガスの純度補償方法
    • 精炼气体供应装置和方法,用于补偿制造气体的纯度
    • JP2014214901A
    • 2014-11-17
    • JP2013090305
    • 2013-04-23
    • Jfeスチール株式会社Jfe Steel Corp
    • YAMAGISHI HIDEKI
    • F25J3/04C01B13/02C01B21/04C01B23/00
    • F25J3/04812F25J3/04206F25J3/04254F25J3/04412F25J3/04557F25J3/04666F25J3/04824F25J2205/90F25J2210/40F25J2215/02F25J2245/50F25J2250/40F25J2250/50
    • 【課題】より確実に目的とする純度補償を可能とする。【解決手段】精製ガス供給装置は、空気分離装置1と、空気分離装置1が製造したガスが通過する低純度ガス系の管路41と、空気分離装置1が製造するガス濃度よりも高純度の高純度ガスを供給可能な高純度ガス供給設備3と、空気分離装置1が製造したガスの純度を検出する純度計4と、純度計4が検出したガスの純度が設定純度未満と判定すると高純度ガス供給設備3からの高純度ガスを低純度ガス系の管路41に混入することでガスの純度を補償する純度補償部8と、を備える。純度補償部8は、純度計4の検出に基づく高純度ガスの混入に加えて、上記空気分離装置1に供給される処理空気量の変更を検出すると、予め設定した設定流量の上記高純度ガスを更に上記低純度ガス系の管路41に混入する。【選択図】図1
    • 要解决的问题:为了能够以提高的可靠性补偿目标纯度。解决方案:精炼气体供应装置包括:空气分离装置1; 由空气分离装置1产生的气体通过的低纯度气体系统管道41; 高纯度气体供给装置3,其能够提供纯度高于由空气分离装置1产生的气体的高纯度气体; 检测由空气分离装置1产生的气体的纯度的纯度计4; 以及纯度补偿部8,其通过在将纯度气体供给装置3的高纯度气体混合到低纯度气体系管道41中时,通过将纯度计4检测出的气体纯度设定为小于该值,来补偿气体纯度 纯度。 纯度补偿部8除了在纯度计4的检测的基础上混合高纯度气体之外,在检测到变化时将高纯度气体与预先设定的流量混合到低纯度气体系统管路41中 供给空气分离装置1的处理空气量。
    • 4. 发明专利
    • Oxygen gas supply and demand system
    • 氧气供应和需求系统
    • JP2006002958A
    • 2006-01-05
    • JP2004176759
    • 2004-06-15
    • Jfe Steel KkJfeスチール株式会社
    • FUJII MASAYUKI
    • F25J3/04C21C5/00
    • F25J3/04496F25J3/04224F25J3/04363F25J3/04557F25J3/04836F25J3/04951F25J2230/50F25J2290/62
    • PROBLEM TO BE SOLVED: To optimally control an oxygen generating quantity, by highly accurately predicting a demand quantity and a generation quantity of oxygen.
      SOLUTION: This oxygen gas supply and demand system has a demand quantity predicting means for calculating a demand quantity predicting value, an oxygen generating quantity predicting means for calculating a future oxygen generating quantity predicting value from an oxygen generating quantity at present time, an oxygen holder pressure predicting means for predicting oxygen holder pressure on the basis of the demand quantity predicting value and the oxygen generating quantity predicting value, an oxygen discharge quantity and liquid oxygen supply quantity predicting means for calculating an oxygen discharge quantity predicting value and a liquid oxygen supply quantity predicting value on the basis of an oxygen holder pressure predicting value, an oxygen proper generation quantity calculating means for calculating an oxygen proper generation quantity on the basis of the oxygen generating quantity predicting value, the oxygen discharge quantity predicting value and the liquid oxygen supply quantity predicting value, an oxygen holder proper pressure predicting means for calculating an oxygen holder proper pressure predicting value on the basis of the oxygen proper generation quantity, and an oxygen discharge quantity and liquid oxygen proper supply quantity predicting means for calculating a proper oxygen discharge predicting value and a liquid oxygen proper supply quantity predicting value on the basis of the oxygen proper generation quantity predicting value, the oxygen demand quantity predicting value and the oxygen holder proper pressure predicting value.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:通过高精度地预测需求量和氧的产生量来最佳地控制氧气产生量。 解决方案:该氧气供需系统具有用于计算需求量预测值的需求量预测装置,用于从当前时间的氧气发生量计算未来氧气发生量预测值的氧气产生量预测装置, 用于根据需求量预测值和氧发生量预测值预测氧气保持器压力的氧气保持器压力预测装置,用于计算氧气排出量预测值的氧气排放量和液氧供给量预测装置,以及液体 基于氧气保持器压力预测值的氧气供给量预测值,用于根据氧气产生量预测值,氧气排放量预测值和液体计算氧气合适产生量的氧气合适产生量计算装置 氧气 层数量预测值,用于根据氧气适当产生量计算氧气保持器适当压力预测值的氧气保持器适当压力预测装置,以及用于计算适当的氧气排出量的氧气排放量和液体氧气供应量预测装置 基于氧适当产生量预测值,氧需求量预测值和氧气保持器适当压力预测值来预测值和液氧适当供给量预测值。 版权所有(C)2006,JPO&NCIPI
    • 6. 发明专利
    • Gas supply equipment and gas supply method using the same
    • 气体供应设备和使用该气体的气体供应方法
    • JP2014092342A
    • 2014-05-19
    • JP2012244502
    • 2012-11-06
    • Air Water Incエア・ウォーター株式会社
    • YOSHINO AKIRAFURUHATA DAISUKETANAKA MASAKO
    • F25J3/04C21C5/52
    • F25J3/04557F25J3/04278F25J3/04636F25J3/04715F25J3/04727F25J2200/04F25J2200/40F25J2200/50F25J2205/60F25J2215/42F25J2215/50F25J2270/12F25J2270/40F25J2270/42
    • PROBLEM TO BE SOLVED: To provide gas supply equipment and a gas supply method using the gas supply equipment, capable of obtaining liquid oxygen and high-purity of liquid argon, supplying oxygen gas to an electric furnace for electric steelmaking and supplying high-purity argon gas to a rectification furnace in the same site of an electric steel plant.SOLUTION: In a site of an electric steel plant, oxygen gas which is obtained in a PSA device 1 and contains a small amount of argon and nitrogen is liquefied to make a first liquid oxygen by means of a first heat exchanger 3 to which the liquefied gas obtained in a liquefying unit 11 is introduced, a part of the first liquid oxygen is stored in a liquid oxygen tank 4, the remaining part is cryogenically separated into a second liquid oxygen and a gas mixture of argon and nitrogen in the first rectification column 5, the gas mixture is cryogenically separated into high-purity liquid argon and nitrogen gas in the second rectification column 6 and the high-purity liquid argon is stored into a liquid argon tank 7. Nitrogen for circulation is circulated through a nitrogen circulation path 9 which passes through a second heat exchanger 8 cooled by second liquid oxygen and the first and the second rectification columns 5, 6.
    • 要解决的问题:为了提供使用气体供应设备的气体供应设备和气体供应方法,能够获得液氧和高纯度的液氩,将氧气供应给电炉用于电炼炼并提供高纯氩 将气体送到电动钢厂的同一地点的精馏炉。解决方案:在电动钢铁厂的现场,在PSA装置1中得到的含有少量氩和氮的氧气被液化, 第一液氧通过第一热交换器3,液化单元11中获得的液化气体被引入到第一热交换器3中,一部分第一液氧储存在液氧罐4中,其余部分被低温分离成第二液氧气 在第一精馏塔5中的液氧和氩气和氮气的混合气体,将气体混合物低温分离成第二精馏塔中的高纯度液态氩和氮气 6,高纯度液态氩储存在液体氩罐7中。用于循环的氮气通过氮气循环路径9循环,氮气循环路径9通过由第二液氧冷却的第二热交换器8和第一和第二精馏塔5 ,6。
    • 8. 发明专利
    • Apparatus and method for supplying oxygen
    • 装置和方法供应氧气
    • JP2011046557A
    • 2011-03-10
    • JP2009195490
    • 2009-08-26
    • Jfe Steel CorpJfeスチール株式会社
    • FUJISHIRO MASATOMORI ISAOTAKENOUCHI EIJI
    • C01B13/02F25J3/04
    • F25J3/04036F25J3/04557F25J3/04781F25J3/04812F25J2230/50F25J2290/62
    • PROBLEM TO BE SOLVED: To control the loss of the oxygen produced to the atmosphere, while controlling the electric power consumption for supplying the oxygen. SOLUTION: Oxygen separated from raw material air with an air separator is supplied to oxygen-consuming facilities via an oxygen compressor and an accumulator. When the pressure of the accumulator is higher than the pressure relief threshold value which is an initially set standard pressure threshold value, the excess portion of the air from the air separator is released to a place other than the oxygen-consuming facilities. When the pressure of the accumulator exceeds the predetermined standard pressure threshold value, and, when the increase in the electric power consumption of the oxygen compressor stays less than a prescribed electric power consumption even if the pressure relief threshold value is changed to the maximum limit pressure threshold value higher than the standard pressure threshold value, the maximum limit pressure threshold value is used for the pressure relief threshold value. COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:为了控制向大气中产生的氧的损失,同时控制用于供给氧气的电力消耗。 解决方案:用空气分离器从原料空气中分离的氧气通过氧气压缩机和蓄能器供应给耗氧设施。 当蓄能器的压力高于作为初始设定的标准压力阈值的减压阈值时,来自空气分离器的空气的过剩部分被释放到除了耗氧设施之外的地方。 当蓄能器的压力超过预定的标准压力阈值时,并且当氧压缩机的电力消耗的增加保持小于规定的电力消耗时,即使压力释放阈值变为最大极限压力 阈值高于标准压力阈值时,最大极限压力阈值用于压力释放阈值。 版权所有(C)2011,JPO&INPIT