Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3332442 A
Publication typeGrant
Publication dateJul 25, 1967
Filing dateJan 18, 1965
Priority dateJan 18, 1965
Publication numberUS 3332442 A, US 3332442A, US-A-3332442, US3332442 A, US3332442A
InventorsRobert D Reed
Original AssigneeZink Co John
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for mixing fluids
US 3332442 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

July 25, 1967 R. D. REED 3,332,442

APPARATUS FOR MIXING FLUIDS Filed Jan. 18, 1965 INVENTOR ROBERT D. REED BY Q LkQL ATTORNEY United States Patent 3,332,442 APPARATUS FGR MIXING FLUIDS Robert D. Reed, Tulsa, Okla, assignor to John Zinlr Company, Tulsa, 014121., a corporation of Delaware Filed Jan. 18, 1965, Ser. No. 426,012 4 Claims. (Cl. 137-604) The present invention relates to a device for providing a homogeneous mixture of fluids such as two liquids or two gases and the invention more specifically pertains to a device for developing intimate intermingling of two fluids in the same physical state in response to energy developed when the fluids are brought together under different pressures.

It is often desirable in carrying out thermal or catalytic processes to mix fluids and in the production of gaseous fuels it is often necessary to mix two gases or two liquids and it is an object of the present invention to provide a device which serves to mix such fluids by the utilization of the pressure differences at which the fluids are brought into the presence of each other and to utilize the energy resulting from such a pressure difference to carry out the mixing and thereby provide a substantially homogeneous mixture of the fluids.

A more specific object of the invention is to' provide a conduit assembly having a generally linear passage therethrough for one fluid which is supplied for movement therethrough under one pressure with the conduit device equipped with structure for receiving another fluid under a greater pressure and with the assembly equipped with ports for discharging the second fluid in directions generally transversely of the linear moving first fluid to provide a screen of the second fluid through which the first fluid must pass to provide an intimate intermingling of the fluids.

Other objects and features of the invention will be appreciated and become apparent to those skilled in the art to which the invention pertains as the present disclosure proceeds and upon consideration of the following detailed description taken in conjunction with the accompanying drawing wherein an embodiment of the invention is disclosed.

In the drawing:

FIG. 1 is an axial sectional view of a device for mixing fluids and embodying the invention.

FIG. 2 is a transverse sectional view taken on the line 22 of FIG. 1.

FIG. 3 is an enlarged fragmentary sectional view illustrating the inclined disposition of the discharge ports.

1n carrying out the invention the apparatus may take various forms and in the embodiment shown in the drawing the device includes a cylindrical shaped conduit type housing 10. A supply pipe 14 is connected to the upstream end of the housing and an outlet pipe 16 is connected to the downstream end of the conduit. Flange structures 11 and 12 may be provided on the housing member 10 for facilitating connection of the conduit to the pipes 14 and 16. A tubular member 17 is arranged within the housing 10. A flange 18 carried by the upstream end of the tubular member 17 joins the interior of the housing 10 and a similar flange 19 carried by the downstream end of the tubular member 17 joins the housing 10. Such structure provides an annular space or chamber 21 within the housing member 10.

A pipe fitting 22 extends laterally from the mid-portion of the housing 10 in open communication with the annua lar chamber 21. A supply pipe 23 is connected to the fitting 22 and is for the purpose of guiding one of the fluids under pressure into the device. A tube 26 is mounted on a tubular member 17 and extends along the axis of the assembly as shown in FIG. 1. The free end of the tube 26 is closed by means of a hemispherical shaped wall 27. The

3,332,442 Patented July 25, 1967 tube 26 has an elbow portion 28 which is connected to and supported by the tubular member 17. The interior of the tube 26 is in open communication with the annular chamber 21.

A plurality of circumferentially spaced ports 31 are provided which extends through the cylindrical shaped wall of the tubular member 17. These ports are desirably arranged in a row and generally within a plane which extends transversely of the conduit assembly. The ports 31 are located adjacent the upstream end of the conduit assembly and provide communication from the annular chamber 21 into the passage 41 provided within the tubular member 17. A plurality of discharge openings 32 are provided through the wall of the tube 26. The openings 32 are circumferentially spaced from each other and arranged as a row within substantially the same transverse plane as the ports 31. The discharge openings 32 provide communication from the interior of the tube 26 to the pas sage 41.

In operation and when it is desired to mix two liquids having the same physical state one of the liquids is supplied into the pipe fitting 22 from the supply line 23 under one pressure as for example ten pounds per square inch. This liquid moves into the annular space 21 and some of the liquid escapes through the discharge ports 31 and moves radially inwardly in the passage 41. Another portion of the liquid in the annular chamber 21 moves into the tube 26 and escapes through the discharge openings 32 and moves radially outwardly in the passage 41. A screen of liquid is thus established within the passage 41.

The other liquid is supplied through the inlet pipe 14 under a lower pressure such as for example at about five pounds per square inch. This liquid moves generally linearly through the passage 41. If the liquid supplied through the fitting pipe 22 is a light fuel oil and if the liquid supplied through the pipe 14 is a heavy fuel oil there will be movement of the light fuel oil into an intermingling relationship within the heavy fuel oil because of the greater pressure under which the light fuel oil is supplied. The extent of the mixing of the two liquids is principally proportional to the velocity at which the liquid moves through the discharge ports 31 and the discharge openings 32. The velocity is directly proportional to the square root of the pressure drop at which the two liquids are supplied. An acceptable degree of homogeneity is obtained when the pressure drop from the conduit fitting 22 into the passage 41 is in the order from five to ten pounds per square inch. In carrying out the mixing of liquids the total number of ports 31 and the total number of openings 32 may be small in number because there is ample energy for mixing at readily attainable pressure differences.

In carrying out a mixing of gases one gas is supplied into the pipe fitting 22 under pressure. The other gas is supplied by the pipe 14 under a lesser pressure. The pressure drop within the passage 41 where the gases mingle provides the energy for mixing the gases.

The device herein described has been found to produce complete homogeneous mixture of gases to provide fuel or a mixture of gases for process conversion to useful products and for providing homogeneous mixtures of liquids. It has been found that the total number of ports 31 and discharge openings 32 may vary in number and in the mix ing of some fluids it is advantageous for the axes of the ports 31 and the axes of the openings 32 to be inclined upstream of the conduit assembly. The axes of the ports 31 and the axes of the openings 32 may depart from a transverse plane 36 over a range from about five to twenty degrees as shown in FIG. 3 and in directions which are counter-current to the flow of the fluid in the passage 41.

While the invention has been described with reference to particular structural features and to one type of conduit assembly it will be appreciated that changes may be made in the overall organization as well as in the components. Such modifications and others may be made without departing from the spirit and scope of the invention as set forth in the appended claims.

What I claim and desire to secure by Letters Patent is:

1. A device for mixing fluids comprising, a housing having an inlet and outlet with a generally linear passage within the housing extending from the inlet to the outlet, a tubular member within the housing providing an annular chamber beween the housing and the tubular member and around said passage, a pipe fitting extending laterally from the housing in opening communication with said chamber, a tube carried by said tubular member in open communication With said annular chamber, said tube having a closed end portion disposed coaxially within said tubular member, said tubular member having discharge ports providing communication from said chamber into said passage, said tube having discharge openings providing communication from the tube into said passage, means for guiding a first fluid under pressure into said pipe fitting for escape through said discharge ports and escape through said discharge openings, and menas for guiding another fluid at a lower pressure into said inlet i for movement through said passage and into the presence of the first fluid.

2. A device for mixing fluids according to claim 1 wherein the discharge ports and the discharge openings are in one plane disposed generally transversely of the housing.

3. A device for mixing fluids according to claim 1 wherein the tube extends towards the inlet of the housing and the discharge openings are adjacent to the closed end portion.

4. A device for mixing fluids according to claim 1 wherein the discharge ports and the discharge openings are in one plane disposed transversely of the axis of the housing, and the axes of the discharge ports and the axes of the discharge openings diverge at an angle of from five to twenty degrees from said plane and towards the inlet of the housing.

References Cited UNITED STATES PATENTS 1,702,373 2/1929 Alexander 239-4275 X WILLIAM F. ODEA, Primary Examiner.

D. H. LAMBERT, Assistant Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1702373 *Feb 26, 1926Feb 19, 1929 Oil burner and operation thereof
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4377257 *Nov 12, 1981Mar 22, 1983Sealed Air CorporationMaterial fluidizing apparatus
US4474477 *Jun 24, 1983Oct 2, 1984Barrett, Haentjens & Co.Mixing apparatus
US5230253 *Apr 13, 1992Jul 27, 1993Beckman Instruments, Inc.Fluid mixing device
US5526386 *Feb 23, 1995Jun 11, 1996Battelle Memorial InstituteMethod and apparatus for steam mixing a nuclear fueled electricity generation system
US5793831 *Jun 10, 1996Aug 11, 1998Battelle Memorial InstituteMethod and apparatus for improving the performance of a steam driven power system by steam mixing
US5820256 *May 30, 1996Oct 13, 1998Stranco, Inc.Motorless mixer
US6044910 *Sep 17, 1998Apr 4, 2000Asea Brown Boveri AgMixing device for fluids
US6076955 *Dec 18, 1997Jun 20, 2000Tetra Laval Holdings & Finance S.A.Method and an apparatus for the continuous mixing of two flows
US6179997 *Jul 21, 1999Jan 30, 2001Phillips Petroleum CompanyAtomizer system containing a perforated pipe sparger
US6341888 *Oct 2, 1998Jan 29, 2002Kvaerner Pulping, AbApparatus for introduction of a first fluid into a second fluid
US6347883 *Jan 6, 2000Feb 19, 2002Kvaerner Pulping AbApparatus for adding a first fluid into a second fluid with means to prevent clogging
US6659635 *Nov 18, 2002Dec 9, 2003Kvaerner Pulping AbMethod for introducing a first fluid into a second fluid, preferably introduction of steam into flowing cellulose pulp
US6749329 *May 17, 2002Jun 15, 2004B.E.E. CorporationProcessing product components
US6896401 *Jun 29, 2001May 24, 2005Basf AktiengesellschaftMethod and device for reducing byproducts in the mixture of educt streams
US7048432 *Jun 19, 2003May 23, 2006Halliburton Energy Services, Inc.Method and apparatus for hydrating a gel for use in a subterranean formation
US7104328Oct 5, 2005Sep 12, 2006Halliburton Energy Services, Inc.Method and apparatus for hydrating a gel for use in a subterranean well
US7185736 *Aug 25, 2003Mar 6, 2007Fisher Controls International Llc.Aerodynamic noise abatement device and method for air-cooled condensing systems
US7901128Jul 7, 2005Mar 8, 2011Dow Global Technologies LlcTapered aperture multi-tee mixer
US8303384Apr 5, 2007Nov 6, 2012Airbus Deutschland GmbhDevice for mixing fresh air and heating air and use of the device in a ventilation system of an aircraft
US8602634 *Oct 5, 2004Dec 10, 2013Wetend Technologies OyMethod and apparatus for feeding chemical into a liquid flow
US8827544 *Mar 15, 2007Sep 9, 2014Dow Global Technologies LlcMixer for continuous flow reactor, continuous flow reactor, method of forming such a mixer, and method of operating such a reactor
US20070258315 *Oct 5, 2004Nov 8, 2007Wetend Technologies OyMethod and Apparatus for Feeding Chemical Into a Liquid Flow
US20100103769 *Mar 15, 2007Apr 29, 2010Bachman Gene WMixer for a continous flow reactor, continuos flow reactor, mehtod of forming such a mixer, and method of operating such a reactor
US20120039146 *Aug 16, 2010Feb 16, 2012Zanti KyriacosDual tube gas diffusion system
WO2001007169A1 *Jul 19, 2000Feb 1, 2001Phillips Petroleum CoAtomizer system
WO2008115173A1Mar 15, 2007Sep 25, 2008Dow Global Technologies IncMixer for a continuous flow reactor, continuous flow reactor, method of forming such a mixer, and method of operating such a reactor
WO2011152876A1 *Jun 3, 2011Dec 8, 2011Dow Global Technologies LlcSolubilizing surfactants into supercritical carbon dioxide for enhanced oil recovery
Classifications
U.S. Classification137/896, 239/427.5, 366/167.1, 366/178.2, 239/433
International ClassificationB01F3/02, B01F3/08, B01F5/04, B01F5/00
Cooperative ClassificationB01F5/048, B01F5/045, B01F5/0475, B01F3/08, B01F2005/0051, B01F3/02
European ClassificationB01F5/04C14C6, B01F5/04C13, B01F5/04C14C