B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 1/22 (2006.01) B01D 1/06 (2006.01) B01D 19/00 (2006.01) C02F 1/20 (2006.01)
Patent
CA 2349166
In the production of water vapor, particularly in the production of especially clean water vapor, dissolved gases, mainly atmospheric gases, are removed from feed water. The feed water is sprayed by a spray nozzle mounted in a hemispherical chamber in a spray pattern which matches an area of an upper end of an arrangement of vertical feed tubes of a falling film evaporator. The dissolved gases are liberated quickly from the sprayed droplets and removed through outlets in the hemispherical chamber. The sprayed droplets collect at the upper ends of the vertical evaporation channels and are distributed evenly thereamong before atmospheric gases can be redissolved.
Pour la production de vapeur d'eau, notamment pour la production de vapeur particulièrement propre, il faut absolument éliminer les gaz dissous dans l'eau d'alimentation, qui sont surtout des gaz atmosphériques. Quand on utilise un évaporateur à ruissellement, il est important de répartir uniformément l'eau d'alimentation sur les surfaces de transfert thermique. Avec le procédé et le dispositif de l'invention, le dégazage et la répartition uniforme de l'eau se font simultanément lors de la vaporisation de l'eau sur la partie supérieure de l'ensemble canal de transfert thermique, d'une manière uniforme, de façon à former de fines gouttelettes. Les gaz peuvent s'échapper rapidement de ces gouttelettes et ils n'ont pas le temps de se redissoudre, du fait que le processus d'évaporation commence immédiatement.
Piasetzki Nenniger Kvas Llp
Steris Europe Inc. Suomen Sivuliike
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