IP Library › Granted Patent US 12678746
Granted Patent B2
US 12678746 · App. 17/596,872 · Granted Jul 14, 2026

Apparatus for dissolving gas into a liquid and method for producing the same

Inventor: Kenneth Glomset (Alesund, NO)
Assignee: Linde GmbH
B01F23/2326B01F23/232B01F25/31243B01F25/312512B01F25/312522B01F35/165B33Y10/00B33Y80/00
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Quick Facts
Patent No.
US 12678746
App. No.
17/596,872
Granted
Jul 14, 2026
Kind
B2
Abstract

An apparatus for dissolving gas into a liquid is provided having a housing with an inlet opening for the liquid and an outlet opening for the liquid, and a blade unit arranged inside the housing in a small cross section area between the inlet opening and the outlet opening. A flow cross section for the liquid at the small cross section area is smaller than at the inlet opening. The apparatus further includes a gas inlet provided at an outside of the housing and at least one gas outlet provided in the housing on a surface of the blade unit. The at least one gas outlet is connected to the gas inlet by a channel. Methods for producing and using such an apparatus are also provided.

Claims (35)

1 . An apparatus for dissolving gas into a liquid, comprising:

a housing with an inlet opening for the liquid and an outlet opening for the liquid, said housing having an area with a smaller flow cross section for the liquid than the inlet opening flow cross section, and the area of smaller flow cross section is positioned between the inlet opening and the outlet opening,

a blade unit arranged inside the area with smaller flow cross section, and

a gas inlet provided at an outside of the housing and a plurality of gas outlets provided in the housing on a surface of the blade unit, the plurality of gas outlets being connected to the gas inlet by one or more channels,

wherein the blade unit includes a jet nozzle and at least one connection element that connects the jet nozzle to an inner wall of the housing, and the at least one connection element has a cross section in the form of a blade, and

wherein at least one of the plurality of gas outlets is provided at a surface of the jet nozzle and at least one other of the plurality of gas outlets is provided on a surface of the at least one connection element.

2 . The apparatus according to claim 1 , wherein the at least one of the plurality of gas outlets is at least one opening on the surface of the jet nozzle and the at least one other of the plurality of gas outlets is at least one opening on the surface of the at least one connection element.

3 . The apparatus according to claim 1 , wherein at least one of the plurality of gas outlets is provided in the form of a lip.

4 . The apparatus according to claim 1 , wherein the one or more channels are provided in the blade unit.

5 . The apparatus according to claim 1 , wherein the apparatus is a one-piece apparatus.

6 . A method for dissolving gas into a liquid using the apparatus according to claim 1 , comprising guiding liquid through the housing of the apparatus, wherein liquid enters at the inlet opening and exits at the outlet opening, and wherein the gas is introduced via the gas inlet.

7 . The apparatus according to claim 1 , wherein the at least one of the plurality of gas outlets is at least one opening on the surface of jet the nozzle and the at least one other of the plurality of gas outlets is at least one opening on the surface of the at least one connection element, or

at least one of the plurality of gas outlets is provided by a porous surface of the jet nozzle, and the at least one other of the plurality of gas outlets is provided by a porous surface of the at least one connection element.

8 . The apparatus according to claim 1 , wherein at least one of the plurality of gas outlets is provided in the form of a lip that stretches across parts of or an entire length of one blade geometry.

9 . The apparatus according to claim 1 , wherein the apparatus is a one-piece apparatus made by 3D-printing.

10 . The apparatus according to claim 1 , wherein the jet nozzle is in the form of a tube or pipe in which a wall of the tube or pipe has a blade shaped cross section.

11 . The apparatus according to claim 1 , wherein the apparatus has a plurality of the connection elements that connect the jet nozzle to the inner wall of the housing, wherein each of the connection elements has a cross section in the form of a blade.

12 . The apparatus according to claim 1 , wherein the at least one connection element is angled so as to create a rotation of the liquid after introduction of the gas into the liquid.

13 . The apparatus according to claim 1 , wherein the surface of the jet nozzle is porous, the surface of the at least one connection element is porous, or both the surface of the jet nozzle and the surface of the at least one connection element is porous, wherein the porous surface on the jet nozzle and/or the connection element forms the at least one of the plurality of gas outlets.

14 . A method for producing an apparatus for dissolving gas into a liquid, the method comprising:

providing a housing with an inlet opening for the liquid and an outlet opening for the liquid, said housing having an area with a smaller flow cross section than the inlet opening flow cross section, and the area of smaller flow cross section is positioned between the inlet opening and the outlet opening,

arranging a blade unit inside the housing in the area of smaller flow cross section, and

providing a gas inlet at an outside of the housing and a plurality of gas outlets in the housing on a surface of the blade unit, connecting the plurality of gas outlets to the gas inlet by one or more channels,

wherein the blade unit includes a jet nozzle and at least one connection element that connects the jet nozzle to an inner wall of the housing, and the at least one connection element has a cross section in the form of a blade, and

wherein at least one of the plurality of gas outlets is provided at a surface of the jet nozzle and at least one other of the plurality of gas outlets is provided on a surface of the at least one connection element.

15 . The method according to claim 14 , wherein the apparatus is provided by 3D-printing.

16 . The method according to claim 14 , wherein the apparatus is made as a one-piece apparatus.

17 . An apparatus for dissolving gas into a liquid, comprising:

a housing with an inlet opening for the liquid and an outlet opening for the liquid, said housing having an area with a smaller flow cross section for the liquid than the inlet opening flow cross section, and the area of smaller flow cross section is positioned between the inlet opening and the outlet opening,

a blade unit arranged inside the area with smaller flow cross section, and

a gas inlet provided at an outside of the housing and a plurality of gas outlets provided in the housing on a surface of the blade unit, the plurality of gas outlets being connected to the gas inlet by one or more channels,

wherein the blade unit includes a jet nozzle and at least one connection element that connects the jet nozzle to an inner wall of the housing, and the at least one connection element has a cross section in the form of a blade having a tapered section, and

wherein at least one of the plurality of gas outlets is provided at a surface of the jet nozzle and at least one other of the plurality of gas outlets is provided on a surface of the at least one connection element.

18 . The apparatus according to claim 17 , wherein the jet nozzle is in the form of a tube or pipe in which a wall of the tube or pipe has a blade shaped cross section with a tapered section.

19 . The apparatus according to claim 17 , wherein the area of smaller flow cross section for liquid generates a reduced static pressure at the position of the at least one of the plurality of gas outlets.