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    • 1. 发明授权
    • Method for sealing spiral wound filtration modules
    • 密封螺旋缠绕过滤模块的方法
    • US6068771A
    • 2000-05-30
    • US248422
    • 1999-02-11
    • Thomas McDermottMartin RoosStephen JensRobert Kovar
    • Thomas McDermottMartin RoosStephen JensRobert Kovar
    • B01D63/10B29C53/56B32B31/16
    • B01D63/10B29C53/562
    • A method for preparing a spiral wound filtration module is provided. The module has a central permeate carrier tube. The method includes winding at least one filtration leaf about the permeate carrier tube. The filtration leaf includes a first membrane sheet, a permeate carrier sheet, and a second membrane sheet. The winding step creates an end face extending radially outwardly from the permeate tube on each end thereof. After winding, the filtration module is maintained in a wound state. An adhesive is then supplied to each end face and a vacuum is applied through each of the permeate tube. While the vacuum is applied, the permeate tube and filtration leaf assembly are spun in a centrifuge until the adhesive has solidified. After spinning, each end face of the module is severed at a distance between the level of adhesive along the feed spacer screen and the level of adhesive along the permeate carrier sheet.
    • 提供了一种制备螺旋缠绕过滤模块的方法。 该模块具有中心渗透载体管。 该方法包括在渗透物载体管周围缠绕至少一个过滤叶。 过滤叶片包括第一膜片,渗透物载体片和第二膜片。 卷绕步骤产生从其每端的渗透管径向向外延伸的端面。 卷绕后,过滤组件保持卷绕状态。 然后将粘合剂供应到每个端面,并且通过每个渗透管施加真空。 当施加真空时,渗透管和过滤叶组件在离心机中旋转,直到粘合剂固化。 在旋转之后,模块的每个端面在沿着进料隔离器筛网的粘合剂水平和沿着渗透物载体片材的粘合剂水平之间的距离处被切断。