Corrugated grid mat

Corrugated grid mat of an installation element comprising a stack of a plurality of such grid mats, of a device for treating a useful fluid by means of a working fluid, in particular for humidifying and/or cleaning and/or cooling a useful fluid, in particular a gas, by means of a working fluid, in particular sprayed water, comprising

• an upper side and a lower side,
• a first longitudinal edge and a second longitudinal edge which extend essentially parallel to each other and are connected by two transverse edges which extend transversely to these longitudinal edges and are also essentially parallel to each other,
• alternately adjacent depressions and elevations extending linearly at an angle not equal to 90° to both the longitudinal edges and the transverse edges with slopes connecting them,
• the elevations being arranged on the upper side and the depressions on the lower side,
• a rectilinear first grid strut extending along the elevations on the upper side and along the depressions on the lower side, and
• the first grid struts of a respective elevation and the depression adjacent thereto being connected by intersecting second and third grid struts which extend along the slopes and form first intersection points with one another and second intersection points with the first grid struts on the upper side and on the lower side respectively,
• wherein
• each first grid strut extending up to the first longitudinal edge has a first interruption section, the center point of which has a first distance from the first longitudinal edge,
• each first grid strut extending up to the second longitudinal edge has a second interruption section, the center point of which has a second distance from the second longitudinal edge,
• the first distance being smaller than the second distance,
• the first grid struts of in each case two adjacent elevations and/or in each case two adjacent depressions are connected on both sides of their first and second interruption sections in each case by further grid struts forming sub-networks with one another,
• the sub-networks arranged next to one another along one of the longitudinal edges in each case being connected to one another by a fourth grid strut extending parallel to the respective longitudinal edge, which extends through the first or second interruption section and, for example, at the midpoint of the first or second interruption section, extends through the latter.