Patent EA-005144-B1 (EA)
Title: Intermemranous gauze spacer of electrodialyzer and method for manufacturing thereof
Inventor: TSKHAI ALEXANDER ALEXEEVICH
IPC: B29C39/02
Filed: 2003-08-12
Abstract: 1. An inter-membranous gauze spacer of an electrodialyzer, containing a frame with holes and feeding channels, turbulizing grid, characterized in that has at least one labyrinth like partition, turbulizing grid at the crossing places of its threads is provided with elements in the shape of plates and hereby the spacer is made as a one-peace detail. 2. The spacer according to claim 1, characterized in that thickness of the plates, being equal to the thickness of the spacer, are round and/or elongated, and/or a connection thereof. 3. The spacer according to claim 1, characterized in that the square area of element's surface, made in the plain of the turbulizing grid, is 3-30%, preferably 10% from the area of turbulizing grid surface. 4. The spacer according to claim 1, characterized in that the turbulizing grid, which is a nodular-free grid, with the thread's thickness being half of the frame thickness. 5. The spacer according to claim 1, characterized in that the grid-forming threads are arranged at 15-75 degree , preferably at 30 degree relative to the axle of supposed fluid flow. 6. The spacer according to claim 1, characterized in that the threads of turbulizing grid having the rectangular, trapezoid, triangular, semicircular cross section. 7. The spacer according to claim 1, characterized in that at least one labyrinthine partition is arranged along the axis of supposed fluid flow. 8. An intermembranous gauze spacer of an electrodialyzer, containing a frame with holes and feeding channels, a turbulizing grid, characterized in that the surface of the turbulizing grid at the crossing places of its threads is provided with elements in the shape of plates and hereby the spacer is made as a one-peace detail. 9. The spacer according to claim 1, characterized in that thickness of the plates, being equal to the thickness of the spacer, are round and/or elongated, and/or a connection thereof. 10. The spacer according to claim 8, characterized in that the square area of element's surface, made in the plain of the turbulizing grid, is 3-30%, preferably 10% from the area of turbulizing grid surface. 11. The spacer according to claim 8, characterized in that the turbulizing grid, which is a nodular-free grid, with the thread's thickness being half of the frame thickness. 12. The spacer according to claim 8, characterized in that the grid-forming threads are arranged at 15-75 degree , preferably at 30 degree relative to the axis of supposed fluid flow. 13. The spacer according to claim 8, characterized in that the threads of turbulizing grid having the rectangular, trapezoid, triangular, semicircular cross section. 14. A method for manufacturing of an intermembranous gauze spacer of an electrodialyzer according to claim 1 or 8 by moulding from the thermoplastic polymer, characterized in that a spacer is moulded in one moulding form in one step. 15. The method characterized in that the grid-forming threads are arranged at 15-75 degree , preferably at 30 degree relative to the axis of supposed fluid flow.