Temperature control roller, transporting arrangement and vacuum arrangement

A temperature control roller device, comprising:

• a cylindrical roller shell with a plurality of gas outlet openings;
• a temperature control device configured to supply thermal energy to and/or extract thermal energy from the roller shell, wherein the temperature control device comprises a cylindrical housing and a cavity within the housing for receiving a temperature control fluid;
• a plurality of gas lines extending along the axis of rotation;
• a gas distributing structure that couples the plurality of gas lines with the plurality of gas outlet openings in a gas-conducting manner,
• wherein the gas distributing structure couples the cylindrical roller shell with the plurality of gas lines,
• wherein the gas distributing structure comprises a plurality of stacked layers that differ from one another in their structure density and in their radial distance from the axis of rotation, wherein each layer of the plurality of stacked layers has a layer structure density that is lower than the roller shell, wherein the layer structure density of each layer increases as the function of the radial distance of the layer from the axis of rotation,
• wherein the plurality of stacked layers comprises at least one conductive layer that has a greater electrical conductivity than the cylindrical roller shell;
• and
• a contacting arrangement connected in an electrically conductive manner to the at least one conductive layer.

A temperature control roller device, comprising:

• a dielectric cylindrical roller shell with a plurality of gas outlet openings defined by a network of interconnected pores and/or a granular material;
• a temperature control device configured to supply thermal energy to and/or extract thermal energy from the dielectric cylindrical roller shell, wherein the temperature control device comprises a cylindrical housing and a cavity within the housing for receiving a temperature control fluid;
• a plurality of gas lines extending along the axis of rotation;
• a gas distributing structure that couples the plurality of gas lines with the plurality of gas outlet openings in a gas-conducting manner,
• wherein the gas distributing structure couples the dielectric cylindrical roller shell with the plurality of gas lines and is arranged between the cavity and the dielectric cylindrical roller shell,
• wherein the gas distributing structure comprises a plurality of stacked layers that differ from one another in their structure density and in their radial distance from the axis of rotation, wherein each layer of the plurality of stacked layers has a layer structure density that is lower than the dielectric cylindrical roller shell, wherein the layer structure density of each layer increases as the function of the radial distance of the layer from the axis of rotation,
• wherein the plurality of stacked layers comprise at least one mesh layer formed from a meshwork of filaments,
• wherein the plurality of stacked layers comprises at least one conductive layer that has a greater electrical conductivity than the dielectric cylindrical roller shell;
• a contacting arrangement connected in an electrically conductive manner to the at least one conductive layer;
• and
• a shaft extending along the axis of rotation and carrying the dielectric cylindrical roller shell, wherein the multiple gas lines are within the cylindrical housing that is spatially separated from the shaft.