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Machine translation
1. (WO1979000864) AN ARRANGEMENT IN APPARATUS FOR MIXING GASES WITH AND DISSOLVING GASES IN LIQUIDS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000864    International Application No.:    PCT/SE1979/000076
Publication Date: 01.11.1979 International Filing Date: 30.03.1979
IPC:
B01F 5/12 (2006.01), C02F 3/20 (2006.01)
Applicants:
Inventors:
Priority Data:
7803691 31.03.1978 SE
Title (EN) AN ARRANGEMENT IN APPARATUS FOR MIXING GASES WITH AND DISSOLVING GASES IN LIQUIDS
(FR) APPAREIL POUR MELANGER ET DISSOUDRE DES GAZ DANS DES LIQUIDES
Abstract: front page image
(EN)In an apparatus for mixing gases with and dissolving gases in bodies of liquid there is an axial-flow pump impeller (22), which is arranged to raise the liquid through a substantially vertical riser line (20) whose lower end exhibits an inlet (15) for the liquid and whose upper end forms an outlet (11) for the pumped liquid and is defined by guide surfaces (7) arranged to deflect the liquid radially from the axis of the riser line (20), the drive shaft (4) of the impeller extending coaxially with the riser line from a drive unit, located above the said body of liquid, to the impeller (22), the improvement in which the drive shaft (4) is enclosed by a stationary line (16) whose inner wall together with the drive shaft (4) defines a gas-communication passage (17) whose lower end discharges into the riser line (20) via at least one outflow passage (19) directed substantially radially to the general centre line, said gas-communication passage openly communicating with a gas source, such as the surrounding atmosphere, as illustrated in figure 1.
(FR)Un appareil pour melanger et dissoudre des gaz dans des liquides comprend une roue motrice d"une pompe a debit axial (22), disposee pour elever le liquide par une canalisation substantiellement ascendante (20) dont l"extremite inferieure presente une entree (15) pour le liquide et dont l"extremite superieure forme une sortie (11) pour le liquide pompe et est definie par des surfaces de guidage (7) disposees pour devier le liquide radialement de l"axe de la canalisation ascendante (20), l"arbre d"entrainement (4) de la roue motrice se prolongeant, a partir d"un groupe d"entrainement, situe au-dessus de la masse de liquide, coaxialement a la canalisation ascendante, jusqu"a la roue motrice (22), l"amelioration consistant en ce que l"arbre d"entrainement (4) est enferme dans une canalisation fixe (16) dont la paroi interne forme avec l"arbre d"entrainement (4) un passage de communication des gaz (17) et dont l"extremite inferieure decharge dans la canalisation ascendante (20) via au moins un passage d"ecoulement (19) dirige substantiellement radialement par rapport a la ligne mediane de l"ensemble, ledit passage de communication des gaz communiquant librement avec une source de gaz, telle que l"atmosphere environnante, comme le montre la Fig. 1.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)