EP0791391A1
Expired / Lapsed
EP
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Multi-phase mixing in a hydraulic jump
Assignee: Ohio University
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Filing: 1997-01-27
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Granted: —
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Expires: 2017-01-27
Abstract
Abstract A stationary hydraulic jump (12) is utilized in a multiphase mixing system (10) to mix components present in a plurality of separate phases. The flow rate and film height of a liquid phase (22) in a first pipe section (24) is metered and combined with a flow rate metered gas phase (28) to form a stationary hydraulic jump (12) in a second pipe section (30). The jump position is monitored and maintained stationary. A mixed fluid (44) flows from the jump (12). A variety of solid, liquid, and gaseous components may be mixed in the hydraulic jump (12) through appropriate selection of liquid and gas phase components.
Inventors
- 👤 William Paul Jepson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 19:08
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/40; B01F33/00; B01F33/70; B01F35/00; B01F35/60
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
166 words
An apparatus (10) for mixing materials comprising a first pipe section (24) including a first fluid inlet (16) operative to introduce a first fluid (22) into said first pipe section (24) and a second fluid inlet (29) operative to introduce a second fluid (26) into said first pipe section (24) and a second hydraulic jump pipe section (30) in communication with said first pipe section (24), said apparatus (10) being characterized by: a non-atmospheric fluid source (26) provided such that said second fluid inlet (29) comprises a non-atmospheric fluid inlet (29) operative to introduce a second non-atmospheric fluid (26) into said first pipe section (24); a first fluid film height controller (20) operative to control a film height of said first fluid (22); and a third pipe section (32) in communication with said second pipe section (30), said third pipe section (32) including a back pressure regulator (42) operative to control a back pressure applied to a mixed fluid (44) in said third pipe section (32).
Claim 2
Dependent Claim
44 words
An apparatus for mixing as claimed in claim 1 further characterized by a pipe pressure distribution sensor (40) adapted to sense a pressure distribution along a monitoring pipe section (34) comprising at least a portion of said second hydraulic jump pipe section (30) .
Claim 3
Dependent Claim
84 words
An apparatus for mixing as claimed in claim 2 further characterized by: a first fluid flow rate controller (18) operative to control a flow rate of said first fluid (22); a second fluid flow rate controller (27) operative to control a flow rate of said second non-atmospheric fluid (26); and a main controller (48) adapted to control said back pressure regulator (42), said first fluid flow rate controller (18), and said second fluid flow rate controller (27) in response to said sensed pressure distribution.
Claim 4
Dependent Claim
31 words
An apparatus for mixing as claimed in claim 2 further characterized by a main controller (48) adapted to control said back pressure regulator (42) in response to said sensed pressure distribution.
Claim 5
Dependent Claim
53 words
An apparatus for mixing as claimed in claim 2 further characterized by: a first fluid flow rate controller (18) operative to control a flow rate of said first fluid (22) ; and a main controller (48) adapted to control said first fluid flow rate controller (18) in response to said sensed pressure distribution.
Claim 6
Dependent Claim
53 words
An apparatus for mixing as claimed in claim 2 further characterized by: a second fluid flow rate controller (27) operative to control a flow rate of said second non-atmospheric fluid (26); and a main controller (48) adapted to control said second fluid flow rate controller (27) in response to said sensed pressure distribution.
Claim 7
Independent Claim
33 words
An apparatus for mixing as claimed in any of the preceding claims characterized in that said second pipe section (30) is inclined with respect to a flow direction of said first fluid (22).
Claim 8
Independent Claim
79 words
An apparatus for mixing as claimed in any of the preceding claims characterized in that said second pipe section (30) is inclined with respect to a flow direction of said first fluid (22) and said second non-atmospheric fluid inlet (29) comprises a plurality of non-atmospheric fluid inlet ports (62, 64, 66) located so as to be positioned prior to a first stationary hydraulic jump (12a) and between successive stationary hydraulic jumps (12b, 12c) in said second pipe section (30).
Claim 9
Independent Claim
59 words
An apparatus for mixing as claimed in any of the preceding claims characterized in that said second non-atmospheric fluid inlet (29) comprises a plurality of fluid inlet ports (62, 64, 66) located so as to be positioned prior to a first stationary hydraulic jump (12a) and between successive stationary hydraulic jumps (12b, 12c) in said second pipe section (30).
Claim 10
Independent Claim
62 words
An apparatus for mixing as claimed in any of the preceding claims characterized in that said second pipe section (30) includes a plurality of pipes (81a, 81b, 81c) each including a section carrying at least one stationary hydraulic jump (12d, 12e, 12f), and characterized in that said plurality of pipes (81a, 81b, 81c) are in communication with a common fluid header (82).
Claim 11
Independent Claim
141 words
A method of mixing materials comprising the steps of introducing a first fluid (22) into a first pipe section (24) through a first fluid inlet (16), introducing a second fluid (26) into said first pipe section (24) through a second fluid inlet (29), and providing a second hydraulic jump pipe section (30) in communication with said first pipe section (24), said method being characterized by the steps of: providing a non-atmospheric fluid source (26) such that said second fluid inlet (29) comprises a non-atmospheric fluid inlet (29) operative to introduce a second non-atmospheric fluid (26) into said first pipe section (24); controlling a film height of said first fluid (22); providing a third pipe section (32) in communication with said second pipe section (30); and controlling a back pressure applied to a mixed fluid (44) in said third pipe section (32).
References Cited (Backward Citations)
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