Dragerwerk Aktiengesellschaft

Draegerwerk, Ag

Wolf-Dieter Schmidt

Jurgen Sachtler

A substance exchange system especially for humidifying gases has at least one bundle of hollow fibers wherein a first flow space surrounds the outside of the hollow fibers and a second flow space is formed by the inner spaces of the hollow fibers with the exchange between the flow spaces being dependent on the exchange characteristic values of the hollow fibers. This substance exchange system is improved with respect to a more flexible determination of exchange quantities which are mutually independent. According to the invention, at least two sub-regions having hollow fibers of different exchange characteristic values are provided.

System for exchanging a substance between fluids

A process for producing a hollow fiber mass transfer module with a number of hollow fibers sealed into a housing is improved according to the invention with regard to the development of a desirable flow space in the surface area of the hollow fibers by the fact that a spacing material is applied to the outsides of the hollow fibers before their insertion into the housing (2). The thickness of the material is chosen to conform to the desired separation of the hollow fibers. The hollow fibers are arranged substantially parallel and inserted as a bundle into the housing and are fixed with the grout. The spacing material can have a layered or particulate and granular form. A hollow fiber mass transfer module produced by the process pursuant to the invention has hollow fibers suitably arranged at uniform mutual spacings.

Growing community of inventors

Lubeck, Germany

Wolf-Dieter Schmidt