| 发明名称 |
A TUBULAR MEMBRANE WITH A HELICAL RIDGE, AS WELL AS A METHOD AND APPARATUS FOR PRODUCING SUCH A TUBULAR MEMBRANE |
| 摘要 |
A tubular membrane includes a support tube made out of one or more flexible tapes of porous support material which have been helically wound into a tube shape with overlapping tape edges which have been sealed to each other, and a semi-permeable membrane layer made of membrane forming material on an inner wall of the support tube. At least one inwardly projecting helical ridge is provided on the inner wall of the support tube, which helical ridge is covered with or forms part of the membrane layer. |
| 申请公布号 |
US2016332120(A1) |
申请公布日期 |
2016.11.17 |
| 申请号 |
US201515112218 |
申请日期 |
2015.01.12 |
| 申请人 |
X-FLOW B.V. |
发明人 |
Oborný Radek;Koel Stefan;Potreck Jens |
| 分类号 |
B01D63/06;B29C41/20;B29C65/08;B29C53/58;B29C53/82 |
主分类号 |
B01D63/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A tubular membrane, comprising:
a support tube made out of one or more flexible tapes of porous support material which have been helically wound into a tube shape with overlapping tape edges which have been sealed to each other; and a semi-permeable membrane layer made of membrane forming material on an inner wall of the support tube; wherein at least one inwardly projecting helical ridge on said inner wall of the support tube, which helical ridge is covered with or forms part of the membrane layer. |
| 地址 |
Enschede NL |
