| 摘要 |
Fluid treatment apparatus is disclosed in which a stack of flat membrane elements and support plates are enclosed and compressed by means of a casing which comprises two endplates between which the stack is arranged, the internal faces of the endplates being adapted to contact the faces of the stack which is substantially parallel to the plane of the elements, and at least two lateral plates are located with their internal surfaces in front of the lateral faces of the stack. A number of studs and cooperating recesses are provided in adajcent surfaces of each lateral plate and each endplate, whereby the lateral plates and endplates are connected together within cooperating engagement surfaces, which are disclosed as being cylindrical, of its stud and recesses, hold the endplates and lateral plates together and thus hold the stack compressed. In order to assemble, the stack is mounted between the endplates, and the endplates are compressed between the platens of a press whereafter the lateral plates are positioned with its studs and recesses in engagement. The platen pressure is released. The endplates and lateral plates may be secured, for example by ultrasonic welding. |
