Potting Method

• US 20110192783A1
• Filed: 04/15/2011
• Published: 08/11/2011
• Est. Priority Date: 04/04/2001
• Status: Active Grant

• Current Assignee: Evoqua Water Technologies LLC (Xylem, Inc.)
• Original Assignee: Siemens Industry Incorporated (Siemens AG)
• Inventors: Cox, David John, Zha, Fufang, Lea, Cinzia, Schnieder, Georg, Muller, Joachim
• Granted Patent: US 8,518,256 B2
• Time in Patent Office: Days
• US Class Current: 210/321.87
• CPC Class Codes: B01D 63/0221 using a mould
• CPC Class Codes: B01D 63/0225 Multiple encapsulation layers

Abstract

A membrane module includes at least one hollow fibre membrane; a first resin layer formed around an end of the at least one hollow fibre membrane; and a second resin layer chemically bound to the first resin layer, wherein the second resin layer is of greater flexibility than the first resin layer.

Claims

1. A membrane module, comprising:

at least one hollow fibre membrane;

a first resin layer formed around an end of the at least one hollow fibre membrane; and

a second resin layer chemically bound to the first resin layer,

wherein the second resin layer is of greater flexibility than the first resin layer.

2. The module of claim 1, wherein the first resin layer comprises an epoxy resin material.

3. The module of claim 2, wherein the second resin layer comprises a polyurethane resin material.

4. The module of claim 3, wherein an isocyanate group of the polyurethane resin material is chemically reacted with an epoxy group of the epoxy resin material.

5. The module of claim 1, wherein the second resin layer comprises a flexibilizing agent.

6. The module of claim 5, wherein the first and second resin layers comprise the same resin material.

7. The module of claim 1, wherein the end of the at least one hollow fibre membrane is sealed.

8. The module of claim 1, further comprising a potting sleeve constructed and arranged to receive the first and second resin layers.

9. The module of claim 8, wherein the potting sleeve comprises adhesion means, wherein the adhesion means assist in adhesion of at least one of the first and second resin layers to the potting sleeve.

10. The apparatus according to claim 9, wherein a surface of the potting sleeve in contact with at least one of the first and second resin layers is roughened.

11. The apparatus according to claim 9, wherein the potting sleeve comprises at least one protrusion formed on a surface of the potting sleeve in contact with at least one of the first and second resin layers.

12. The apparatus according to claim 9, wherein the potting sleeve comprises at least one indentation formed on a surface of the potting sleeve in contact with at least one of the first and second resin layers.