-
公开(公告)号：US5186007A
公开(公告)日：1993-02-16
申请号：US770887
申请日：1991-10-04
申请人： Hideaki Takano , Jitsuo Nakata , Toshiaki Oonishi
发明人： Hideaki Takano , Jitsuo Nakata , Toshiaki Oonishi
CPC分类号： F25J3/04412 , F25J3/04745 , F25J3/04757 , F25J2205/02 , F25J2205/60 , F25J2230/50 , F25J2245/50 , F25J2250/50 , F25J2280/02 , Y10S62/925
摘要： The present invention relates to feeding liquid oxygen from the main condenser of the upper rectifying column of an air liquefying/separating unit into a xenon condensing column. The liquid oxygen is evaporated in varying amounts in correspondence to fluctuating amounts of liquid oxygen being fed into the xenon condensing column. The level and pressure of the liquid at the xenon condensing column is controlled and quantities of liquid oxygen is vented from the xenon condensing column at a constant level. The vented liquid oxygen is exchanged to high pressure oxygen gas in order to evaporate it, and this evaporated gaseous oxygen is supplied to a xenon absorptive column, and recovered as liquid oxygen through heat-exchangers.
摘要翻译： 本发明涉及从空气液化/分离单元的上部精馏塔的主冷凝器将液体氧供给到氙冷凝塔中。 对应于进料到氙冷凝塔的液氧的波动量，液态氧以不同的量蒸发。 控制氙冷凝塔液体的液位和压力，并将液态氧从氙冷凝柱排出一定水平。 将排出的液氧换成高压氧气以使其蒸发，并将该蒸发的气态氧供给到氙吸收塔，并通过热交换器作为液氧回收。
-
公开(公告)号：US5039500A
公开(公告)日：1991-08-13
申请号：US273052
申请日：1988-11-18
申请人： Masami Shino , Hideaki Takano , Jitsuo Nakata
发明人： Masami Shino , Hideaki Takano , Jitsuo Nakata
CPC分类号： F25J3/04757 , C01B23/00 , F25J2205/20 , F25J2205/60 , F25J2215/36 , Y10S62/925
摘要： The present invention relates to a process for producing high purity xenon safely at a high yield from liquid oxygen in a main condenser of an air separating unit.The present invention involves a process for concentrating and recovering xenon by gasifying and introducing liquid oxygen led out from the main condenser in the air separating unit into an adsorption column field with an adsorbent which adsorbs xenon for adsorption and desorption, and a process for rectifying and recovering xenon by introducing concentrated xenon gas into a solid-gas separating column, which is cooled to a temperature at which xenon is solidified but components other than xenon such as oxygen and krypton in the concentrated xenon gas are not solidified to, catch xenon by condensation, then heating the solid-gas separating column after evacuating gas components remained therein.
摘要翻译： 本发明涉及一种在空气分离单元的主冷凝器中从液氧以高产率安全地生产高纯度氙的方法。 本发明涉及一种通过将从空气分离单元中的主冷凝器引出的液氧气气化并引入吸附柱领域中的吸附氙以进行吸附和解吸来浓缩和回收氙的方法， 通过将浓缩的氙气引入固体气体分离塔中回收氙气，将固体气体分离塔冷却至氙气固化的温度，但浓缩氙气中除氙气（例如氧气和氪气）之外的成分不固化，通过冷凝捕获氙气 ，然后在将气体成分抽吸后保存在其中来加热固体气体分离塔。
-
公开(公告)号：US5256856A
公开(公告)日：1993-10-26
申请号：US869463
申请日：1992-04-15
CPC分类号： B23K35/286 , B23K9/173 , B23K9/23
摘要： This invention involves a MIG welding method for aluminum alloys to prevent the formation and deposition of black powder on or around the weldment's bead. By using pure aluminum wire or aluminum alloy wire containing less than 2.5 wt% the base of alloying components as the consumable electrode wire and using aluminum alloy wire as the filler wire 3, the consumable electrode wire 2 and the filler wire 3 are fed into the a metal bath under a certain weight ratio, so that the alloy composition of the molten metal bath is equivalent to that of the base of the black powder on the both sides of the weldment's bead can be is avoided.
-
公开(公告)号：US5124527A
公开(公告)日：1992-06-23
申请号：US637829
申请日：1991-01-07
申请人： Hideaki Takano , Jitsuo Nakata
发明人： Hideaki Takano , Jitsuo Nakata
IPC分类号： B23K9/16
CPC分类号： B23K9/164
摘要： A method of consumable electrode arc welding is shown wherein the leading consumable electrode wire is mounted in parallel with a trailing filler wire, the latter inserted into a molten metal bath. Welding current is divided between the consumable electrode wire and the filler wire. These modifications improve the wettable boundary of the molten metal bath, prevent defects in the weld, and provide a high speed, highly efficient and high quality method of welding carbon steels, alloy steels, as well as aluminum and its alloys in a fully automatic as well as a semiautomatic operation. In an apparatus utilizing the above method, a single torch contains the consumable electrode and filler wire. One or more insulating contact tubes containing filler wire are mounted in a gas shield in parallel with a conductive contact tube containing consumable electrode wire. The unit is small in size and light-weight, and thus convenient for a welder to carry or hold during operation. Appropriate selection of one of the filler wires provided allows multidirectional operation without reorienting the torch. The unit produces a high-quality weld at rapid welding rates and is suitable for automatic and semiautomatic operation.
-
公开(公告)号：US4874592A
公开(公告)日：1989-10-17
申请号：US235328
申请日：1988-08-23
申请人： Masami Shino , Hideaki Takano , Jitsuo Nakata , Katsuhiko Noro
发明人： Masami Shino , Hideaki Takano , Jitsuo Nakata , Katsuhiko Noro
CPC分类号： F25J3/04757 , C01B23/00 , F25J2200/04 , F25J2205/60 , F25J2205/82 , F25J2215/36
摘要： This invention provides a manufacturing process which produces highly purified Xenon economically and safely with high recovery efficiency. In this invention liquid oxygen containing Xenon, which is vented from the main condenser in the upper rectification column of the air separating unit, is sequentially fed into multiple adsorptive columns filled with an adsorbent to selectively adsorb the Xenon. By a sequence of adsorbing-desorbing steps, Xenon is gradually condensed and, at the final state, highly purified Xenon is recovered. Hydrocarbons (CmHn) are removed from the product gas by a catalytic process. Xenon at a purity as high as 99.995% and at a yield as high as 95% is obtained by use of the present process.
摘要翻译： 本发明提供一种以高回收效率经济，安全地生产高纯度氙气的制造方法。 在本发明中，从空气分离单元的上部精馏塔中的主冷凝器排出的液氧氙依次进料到填充有吸附剂的多个吸附塔中以选择性吸附氙。 通过一系列吸附 - 解吸步骤，氙逐渐浓缩，并在最终状态下回收高纯度的氙。 通过催化过程从产物气体中除去碳氢化合物（CmHn）。 纯度高达99.995％，产率高达95％的氙气通过本方法得到。
-
-
-
-
搜索结果
5 条记录 (耗时 0.012 秒)
