• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Hollow, semi-permeable fibers which are intended for use in fluid separations have crimps with amplitudes up to 50% of the external diameter of the fiber and an average crimp period of less than 5 cms. The fibers are sufficiently rigid to retain its crimp form during fluid separation. Preferred fibers have an outside diameter of 150-800 microns, a wall thickness of 50-200 microns and a crimp amplitude of 15-250 microns. The tensile modulus is at least 40 kg/mm<2>. The relatively low amplitude crimps enable good fluid dispersion through a bundle comprising substantially parallelly-oriented hollow fibers such that shell-side (i.e., the exterior sides of the hollow fibers) feed of the fluid mixture to be treated can be attractive, even when the flow of the feed is predominantly axial to the hollow fibers. Shell-side feed of the fluid mixture to be treated is often particularly advantageous since the fluid mixture can frequently be recovered from the fluid separation with a relatively low pressure drop.
    公开号:SU1022650A3
    申请号:SU782691657
    申请日:1978-11-29
    公开日:1983-06-07
    发明作者:Лойд Леонард Ричард
    申请人:Монсанто Компани (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a technology related to the separation of mixtures: on semi-permeable membranes, and to frames for separating hollow semi-permeable fibers
    Devices with semipermeable membranes in the form of hollow in elocon devices are known to be more distinct. It is possible to split a large surface of membranes. They use fibers with a diameter of 20–250 μm, which can withstand a large pressure drop Щ specifically to the apparatus containing the beam. In these units of volume, and And
    The main disadvantage of the known up-t5 devices is the accessibility of the shared mixture to the beam due to their contact with each other. In addition, they show unevenness, which means that there is a lack of uniformity in the flow | ’of variations in efficiency: P: due to different con; laziness.
    The closest: is a hollow half; locally, it is intended in the apparatus for the separation of mixtures. The hollow die is randomly stranded between places, due to the following: dispersion sweat;
    However, this reduces the packing density of the hollow ratae, the presence of more baptisms and places of hollow fibers, washing their number by washing with the mixture, the preparation and cost of the fibers.
    The purpose of the invention is the efficiency section number flow around the shared mixture.
    This goal is achieved by the fact that the hollow semipermeable fiber is made wavy in length with a wave amplitude of not more than 50% of the outer diameter of the fiber and a wave frequency of 0.2-10 per 1 cm
    The average amplitude of the crimps is 1-30% of the outer diameter of the fiber, and the ratio of the average crimp period to the average crimp frequency is from 0.1: 1 to 1: 1.
    Hollow fibers made in this way are especially advantageous when collecting fibers inside the e, in a beam of fussing density, and also in a hydraulic resistant mixture. These overshadow the lower separation of the mixture of centralized appearances of the proposed radonized howl for use in wine strands, the cure of several mu improves [3].
    the fibers in the appago of the number of intergrowths between creates an inequality of separable increases the difficulty of emitting hollow
    - increase in ether due to isosome fibers of fiber length
    VNIIIPI
    Order 4076/51
    Branch P1P
    Patent, ke beams for equipment bundles. In bundles, the hollow fibers are oriented almost parallel to each other, therefore, the fiber packing density is significantly increased. At the same time, a good distribution of the shared mixture between the fibers is achieved, since the crimp amplitude is not so large that undesirable entanglement occurs. The best results were obtained with a tortuosity amplitude not exceeding 50% of the diameter of the hollow fiber. In the bundle, the hollow fibers are in a position fixed relative to each other, which prevents the formation of longitudinal channels for passage! shared mixture.
    The diameters of the hollow fiber can be chosen in a wide range of hours, however, the wall thickness should be large enough to maintain crimp. The outer diameter of the hollow fibers can be from 50 to 800 microns, while the amplitude of the crimp is 10,200 microns.
    Waves on a single hollow fiber need not be continuous along its length, but may be located in sections. In this case, the frequency of the tortuosity in the areas may vary. The average frequency of the twists is 0.2-10, and in the best case, 0.25-5 per 1 cm.
    We offer hollow fibers can be collected in bundles of any convenient configuration, the beam cross section can be round, oval, etc. on the packing density of the fibers. in the beam is influenced by the amplitude of the twists, their frequency and compression of the beam. Typically, the beam packing ratio is 45-65%. For round beams, their diameter can vary from 0.02 to 1 m, depending on the method of supplying the mixture to be separated. Curvatures of a hollow fiber in one bundle can have the same or different amplitude. In addition, the bundle can contain up to 50% hollow fibers without crimping, which are evenly distributed among the crimped hollow fibers.
    Thus, through the use of crimps of small amplitude, high stacking densities of hollow fibers in bundles are achieved; uniform flow around the wire with a shared mixture;
    . Reducing the complexity of the manufacture of membrane devices by eliminating the bonding places of hollow fibers together; reduction of hydraulic resistance to the flow of the shared mixture.
    权利要求:
    Claims (3)
    [1]
    1. HOLLOW SEMI-PERMEABLE FIBER, intended for use in apparatuses for separation of mixtures, further, in order to increase the separation efficiency due to uniform flow of hollow fibers around the separated mixture, the fiber is made wavy in length in the wave amplitude of not more than 50% of the outer diameter of the fiber and the wave frequency of 0.2-10 per 1 cm of fiber length.
    [2]
    2. Fiber πό π. 1, it is clear that the average amplitude of the turns is 1-30% of the outer diameter of the hollow fiber.
    [3]
    3. The fiber according to paragraphs. 1 and 2, distinguished by the fact that the ratio of the average tortuosity period to the average tortuosity frequency is from 0.1: 1 to 1: 1.
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    同族专利:
    公开号 | 公开日
    ES480626A1|1980-01-16|
    BR7807845A|1979-07-31|
    ES475458A1|1980-01-16|
    DE2851687C2|1983-05-11|
    IL56081D0|1979-01-31|
    BE872380A|1979-05-29|
    GB2009034A|1979-06-13|
    PT68842A|1978-12-01|
    DD140000A5|1980-02-06|
    CA1114307A|1981-12-15|
    AU510106B2|1980-06-05|
    IT1192290B|1988-03-31|
    SE7812302L|1979-05-31|
    NO146625B|1982-08-02|
    NO784013L|1979-05-31|
    GB2009034B|1982-04-15|
    FR2410494A1|1979-06-29|
    FR2410494B1|1986-05-02|
    JPS5488317A|1979-07-13|
    NO146625C|1982-11-10|
    IT7830319D0|1978-11-29|
    NL7811649A|1979-06-01|
    JPS583047B2|1983-01-19|
    TR20777A|1982-07-01|
    IL56081A|1982-07-30|
    AU4202778A|1979-06-28|
    GR67310B|1981-06-29|
    DE2851687A1|1979-05-31|
    IN149938B|1982-06-12|
    LU80600A1|1979-06-15|
    ZA786707B|1979-10-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2461671C2|2008-05-19|2012-09-20|ИЮКФ-ХИЮ |Hollow fiber, composition of spin dope moulding hollow fiber and method for producing hollow fiber using this composition|US3616928A|1969-10-02|1971-11-02|Du Pont|Permeation separation device for separating fluids|
    FR2199014B1|1972-09-12|1975-03-14|Rhone Poulenc Ind|
    JPS5125486A|1974-07-24|1976-03-02|Egon Shuuraa Kaato|US4238204A|1979-06-18|1980-12-09|Monsanto Company|Selective adsorption process|
    DE3174204D1|1980-11-06|1986-04-30|Paul Elsey|Portable power saw mill|
    JPH0369573B2|1981-11-14|1991-11-01|Toyo Boseki|
    JPH0376968B2|1982-12-20|1991-12-09|Nitto Denko Corp|
    DE3347999C2|1983-01-17|1989-06-15|Akzo Patente Gmbh, 5600 Wuppertal, De|Process for the production of bundles of corrugated hollow threads|
    DE3301268C2|1983-01-17|1991-03-28|Akzo Patente Gmbh, 5600 Wuppertal, De|
    JPS6245709A|1985-08-21|1987-02-27|Teijin Ltd|Permselective hollow yarn and fluid separator|
    ES2054849T3|1987-10-29|1994-08-16|Terumo Corp|OXYGENER USING POROUS HOLLOW FIBER MEMBRANES.|
    DE3805414C1|1988-02-22|1989-09-07|Secon Gesellschaft Fuer Separations- Und Concentrationstechnik Mbh, 3402 Dransfeld, De|
    EP0519132A1|1989-10-18|1992-12-23|Exxon Research And Engineering Company|Hollow fiber module|
    JPH0763592B2|1989-11-02|1995-07-12|テルモ株式会社|Hollow fiber membrane and hollow fiber membrane type artificial lung using the same|
    JPH03158166A|1989-11-17|1991-07-08|Terumo Corp|Hollow fiber membrane type fluid treating device|
    US5234591A|1991-12-04|1993-08-10|Exxon Research & Engineering Company|Counter-current flow hollow fiber permeator|
    US5779897A|1996-11-08|1998-07-14|Permea, Inc.|Hollow fiber membrane device with inert filaments randomly distributed in the inter-fiber voids|
    US6322703B1|1999-04-20|2001-11-27|Asahi Kasei Kabushiki Kaisha|Method for purifying aqueous suspension|
    DE10007327A1|2000-02-17|2001-08-30|Fresenius Medical Care De Gmbh|Filter device, preferably hollow fiber dialyzer with curled hollow fibers|
    EP2815807A1|2013-06-20|2014-12-24|Gambro Lundia AB|Capillary dialyzer comprising crimped hollow fibres|
    AU2015214949B2|2014-02-06|2018-11-01|Gambro Lundia Ab|Membrane for blood purification|
    KR20210129258A|2014-02-06|2021-10-27|감브로 룬디아 아베|Hemodialyzer for blood purification|
    DE102016002440A1|2016-03-01|2017-09-07|Fresenius Medical Care Deutschland Gmbh|Hollow fiber membrane with three-dimensional curl|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US85585077A| true| 1977-11-30|1977-11-30|
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