Plate for a plate-type heat exchanger

1 . A method of making a plate for a heat exchanger, the method comprising the steps of sequentially:

a) providing a first rigid support layer of a flat generally planar shape and consisting of a broken-through and plastically deformable material;

b) laminating to the first layer by a surface-connection layer a flat generally planar membrane layer capable of transferring enthalpy between two fluid streams separated by the plate and also of the flat generally planar shape; and

c) deforming all of the laminated together layers into a laminate of a nonplanar and three-dimensional shape.

2 . The plate according to claim 1 , wherein the membrane layer is of plastic.

3 . The method according to claim 2 , wherein the plastic membrane layer is a polyurethane or a polymer.

4 . The method according to claim 1 , wherein the support layer is formed from a thermally deformable material.

5 . The method according to claim 1 , further comprising prior to step c) the step of:

laminating a second support layer by another flat and generally nonplanar connection layer to a side of the membrane layer facing away from the first support layer.

6 . The method according to claim 1 , wherein the flat connection layer between the first support layer and the membrane layer is of the same material properties as the first support layer or membrane layer.

7 . The method according to claim 1 , further comprising the step of:

or adhesively bonding the laminate of step c) at its edges and to form a plate-like heat exchanger.

8 . The method according to claim 1 , wherein the connection layer is formed by an adhesive between the support layer and the membrane layer.

9 . The method according to claim 1 , further comprising the step of:

providing the first support layer with a coating made of a zeolite and a binder by a dipping or spraying process.

10 . A laminate of the nonplanar three-dimensional shape made by the method of claim 1 .