Daimler Chrysler Ag

Daimler-Benz Ag

Kurt Rapp

Burkhard Wagner

Thomas Hesse

Reinhard Kraus

A device for continuously humidifying and dehumidifying feed air for a manufacturing process or a ventilation and air conditioning installation includes a membrane contactor having a membrane, the feed air being passed along one side of the membrane and a hygroscopic liquid being passed along another side of the membrane. A regenerator is provided for lowering the water content of the hygroscopic liquid. A metering device is provided for adding water to increase the water content of the hygroscopic liquid. A control device is connected to the metering device and to the regenerator, the control device being configured to control the water content of the hygroscopic liquid and enable a switching between humidification and dehumidification of the feed air as a function of the water vapor partial pressure difference between the feed air and the hygroscopic liquid. A heat exchanger is provided to cool the hygroscopic liquid as the hygroscopic liquid moves from the regenerator to the membrane contactor and at the same time to heat the hygroscopic liquid as the hygroscopic liquid moves from the membrane contactor to the regenerator.

Device for continuously humidifying and dehumidifying feed air

A painting installation with several treatment zones and a system for washing-out paint mist by means of circulated water, in which for each treatment zone or group of treatment zones with similar solvent concentration in the exhaust air, a closed-cycle water circulation of its own is provided. The gasing out of solvents out of the water in zones with low solvent concentration is avoided thereby, and the solvent emission of the painting installation is markedly reduced.

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Eberdingen, Germany

Kurt Rapp