EP0101770A1 - Dispositif et procédé pour le pompage des eaux brutes - Google Patents

Dispositif et procédé pour le pompage des eaux brutes Download PDF

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Publication number
EP0101770A1
EP0101770A1 EP82304580A EP82304580A EP0101770A1 EP 0101770 A1 EP0101770 A1 EP 0101770A1 EP 82304580 A EP82304580 A EP 82304580A EP 82304580 A EP82304580 A EP 82304580A EP 0101770 A1 EP0101770 A1 EP 0101770A1
Authority
EP
European Patent Office
Prior art keywords
slurry
confined space
ring
circular
rotating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP82304580A
Other languages
German (de)
English (en)
Inventor
Clarence R. Possell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP82304580A priority Critical patent/EP0101770A1/fr
Publication of EP0101770A1 publication Critical patent/EP0101770A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00—Pumps with circumferential or transverse flow
    • F04D5/001—Shear force pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2288—Rotors specially for centrifugal pumps with special measures for comminuting, mixing or separating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F04D7/045—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous with means for comminuting, mixing stirring or otherwise treating

Definitions

  • a primary object of the present invention is to provide a method and a pump for carrying out the method whereby a slurry having a liquid. outer phase and particled inner phase may be transferred from one location to another location at a substantially constant rate and pressure without danger that the particled material will jam the operation of the pump.
  • a further object of the invention is to furnish a method and pump in which a slurry containing highly abrasive particled material is transferred between locations with the abrasive particles doing a minimum amount of damage to the pump.
  • a still further object of the invention is to provide a pump of such structure that as it operates the flow of slurry therethrough is so directed that it will not build up and jam the pump, and also the pump operating satisfactorily on slurries containing unusually large particles, with such particles being severed and disintegrated into smaller particles in the pump that can discharge therefrom due to the cutting action of rotating means in the pump that also provide the pumping action.
  • a method whereby a pump transfers a slurry having a liquid outer phase and particled inner phase from a first location to a second location at a substantially constant rate and pressure, and without danger of the particled material settling out and jamming the operation of the pump.
  • a first vertically extending circular confined space is defined.
  • First and second laterally spaced circular surface defining members are disposed in the confined space, with a number of ring-shaped discs being disposed therebetween.
  • a power- driven shaft extends through a centered sealed opening in the housing that defines the confined space. The shaft is secured to the second circular surface defining member.
  • the ring-shaped discs and the first circular surface defining member are secured to the first circular surface defining member by bolts, and the bolts having spacers thereon that maintain the ring-shaped discs in laterally spaced relationship.
  • the first and second circular surface defining members and the ring-shaped discs rotate concurrently when the shaft is driven.
  • the pre-rotating slurry as it enters the confined space ' is subjected to the action of the rotating first and second surface defining members and ring-shaped members that have boundary layers of the slurry adhering thereto, which boundary layers merge into the pre-rotating slurry.
  • the first and second surface defining members and ring-shaped members are rotating at a substantially greater rate than that of the pre-rotating slurry as it enters the confined space.
  • the slurry in the confined space due to the shearing action rotates as a cylindrical body, with the slurry sequentially discharging through a cut water in the upper portion of the confined space, and the discharged slurry being replaced by pre-rotating slurry that enters at substantially the center of the confined space.
  • the slurry after it enters the confined space flows through an outwardly directed spiral path prior to discharging from the cut water.
  • the individual particles in the inner phase will for the most part be of sufficiently small size as to move- . outwardly through the spaces between the ring-shaped discs.
  • an entrained particle When an entrained particle is in the slurry that is too large to pass through the spaces between the ring-shaped discs, it will encounter the knife edges defined on the inner peripheries of the discs and be severed or disintegrated as a result thereof to subparticles that will pass through the spaces and be discharged with the slurry through the cut water.
  • the first and second circular surface defining members have outer peripheral surfaces that taper inwardly towards one another, and serve to direct the outer portion of the rotating body of slurry in the confined space inwardly towards the ring-shaped discs and thus prevent the pump b ecomming jammed due to particled material building up between the rotor and housing that defines the confined space.
  • the interior of the housing is preferably hardened by nitriding, with layers of porous'material thereafter applied thereto, and the voids in the proous material being filled with a material having a low coefficient of friction such as Teflon or the like. The low coefficient of friction minimizes the power required to rotate the body of slurry in the -housing that defines the confined space.
  • the side of the second surface defining member most adjacent the housing has a number of radially extending ridges defined thereon, which as the second member rotates tends to pump slurry outwardly in the confined space and away from the seal through..which the shaft extends into the housing.
  • the pump assembly A that may be used to carry out the method of the present invention includes a first housing B.
  • the housing B is defined by a first side wall 10 and second side wall 12.
  • Side walls 10 and 12 are laterally spaced and vertically disposed.
  • An end wall 14 extends between side walls 10 and 12 and cooperates therewith to define a circular confined space 16.
  • the first-side wall 10 has a centered opening 18 therein that communicates with confined space 16.
  • An opening 20 is formed in second-side wall 12, with the opening 20 serving as a support for a cylindrical first seal 22.
  • a tubular shell 24 extends outwardly from second side wall and serves to support a second seal 26 in axial alignment with first seal 22.
  • a longitudinal space 28 exists between the first and second seals 22 and 26.
  • a bearing 30 is supported in shell 24 outwardly from second seal 26.
  • a power driven shaft 32 is rotatably supported in bearing 30 and extends through the first and second seals 22 and 26 into the first confined space 16.
  • the end wall 14 in the upper portion thereof in which a cut water discharge 34 is formed that communicates with an outwardly extending tubular diffuser 36. The internal expansion of the diffuser 36 does not exceed 7 degrees on a side thereof.
  • a rotor assembly C is provided that includes first and second laterally spaced circular members 38 and 40, that may be formed from a heavy steel plate.
  • a centered second opening 44 is formed in first circular member 38, which second opening is axially aligned with first opening 22.
  • a number of parallel ring-shaped discs 42 are disposed between first and second circular members 38 and 40.
  • the discs 42 have spaces 43 defined therebetween.
  • Discs 42 define a series of axially aligned third openings.
  • the inner peripheries of the ring-shaped discs 42 adjacent the third openings 44 have opposite side surfaces 42a that taper inwardly towards one another to meet at an apex which is a circular knife edge 46.
  • a number of heavy bolts 48 are provided that have heads 48a, shanks 48b and threads 48c on the end portions of the shanks.
  • a number of circumferentially spaced transverse bores 50 are formed in the outer one third of the second circular member 40 through which the bolts 48 extend towards the first circular member 38.
  • the bolts pass through openings 42a in the ring-shaped discs 42.
  • the threads 48c of the bolts engage tapped cavities 38c defined in the first circular member 38.
  • the heads 48a are positioned in enlarged portions of the bores 50.
  • Cylindrical spacers 52 are mounted on bolts 48, with the spacers and bolts cooperating to maintain the-ring-shaped discs 42 in a fixed relationship with first and second circular members 38 and 40, and also hold the ring-shaped discs 42 in fixed lateral relationship to define spaces 53 therebetween.
  • a second housing D is provided that defines a second circular confined space 54 into which slurry E flows through a conduit 56 that extends to a source of the slurry (not shown).
  • Housing D is secured to the exterior surface of first side wall 10 by conventional means 58, with an open end of second housing D in communication with first opening 16.
  • the center 54a of second confined space 54 is disposed above the center of opening 16.
  • Slurry E in flowing through second confined space 5 is pre-rotated and when so rotating discharges into the first circular confined space 16.
  • the Kinetic energy of the pre-rotating slurry E on entering the first circular confined space 16 is augmented by contact with the concurrently rotating first and second circular members 16 and 18 and the ring-shaped discs 42. Both the circular members 16 and 18 and the ring-shaped discs 42 have thin boundary layers of slurry E that adhere thereto and which boundary layers merge into the balance of the slurry E in confined space 16.
  • the concurrently rotating circular members 16 and 18 and ring-shaped discs 42 are moving at a rate greater than the pre-rotating slurry E. As-a result the boundary layers are constantly sheared from the balance of the slurry in the first circular confined space 16 This shearing action imposes a.rotary force on the slurry E in the first confined space 16.
  • the first and second circular members have tapered outer edge surfaces 38a and 40a that extend towards one another, and preferably have an angle that is between 7 and 10 degrees.
  • the tapered edge surfaces 38a and 40a serve to direct the rotating slurry inwardly towards the ring-shaped discs 42.
  • the edge surfaces 38a and 40a also tend to prevent the solid particled phase of the slurry E building up between the rotor C and housing B to the extent the rotor becomes jammed and cannot rotate.
  • Second circular member 40 has an outwardly extending center portion 40b that serves to divert incoming , slurry E outwardly in first confined space 16.
  • the spaces 53 between the ring-shaped discs.42 are of sufficient width to permit the majority of the solid particles in the slurry E to move outwardly therethrough and then discharge through the cut water 34. Occassionally there will be solid particles E-1 in the slurry E that are of too great cross-section to pass through spaces 53. These particles E-1 are moved outwardly by centrifugal force to pressure contact the rotating knives 46 and be severed into particles and fragments that will pass outwardly through the spaces 53.
  • the particled inner phase of the slurry E is normally of an abrasive nature.
  • the bolts 48 are located on the outer one third of the second circular member 40 where the relative velocity between the slurry and spacers is low. This low velocity reduces the abrasive action on the spacers.
  • the interior surfaces of the first and second side walls 10 and 12 and end wall 14 are nitrided, with a layer of a hard porous material 62 then being applied to the nitrided surfaces.
  • the voids in the porous material 62 are then filled with an anti-friction material such as Teflon.
  • the side 40a of the second circular member 40 most adjacent second side wall 12 has a number of shallow radially extending ridges 16 formed thereon, which ridges when the second member is rotating serve to pump the slurry E outwardly away from the first seat 22.
  • This pumping action results in a longitudinal force being exerted on the rotor assembly C towards the first side wall 10. This force tends to.balance the shaft 32 axially due to the imbalance created as a result of the incoming slurry E into the first confined space 16.
  • the space 28 between the first and second seals 22 and 26 is connected to a small bore conduit that extends back to the slurry supply conduit 56.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP82304580A 1982-08-31 1982-08-31 Dispositif et procédé pour le pompage des eaux brutes Withdrawn EP0101770A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP82304580A EP0101770A1 (fr) 1982-08-31 1982-08-31 Dispositif et procédé pour le pompage des eaux brutes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82304580A EP0101770A1 (fr) 1982-08-31 1982-08-31 Dispositif et procédé pour le pompage des eaux brutes

Publications (1)

Publication Number Publication Date
EP0101770A1 true EP0101770A1 (fr) 1984-03-07

Family

ID=8189758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82304580A Withdrawn EP0101770A1 (fr) 1982-08-31 1982-08-31 Dispositif et procédé pour le pompage des eaux brutes

Country Status (1)

Country Link
EP (1) EP0101770A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012027451A2 (fr) 2010-08-24 2012-03-01 Qwtip Llc Système et procédé de revitalisation et de traitement de l'eau
US10463993B2 (en) 2011-08-24 2019-11-05 Qwtip Llc Water treatment system and water
US10464824B2 (en) 2012-02-28 2019-11-05 Qwtip Llc Gas production system and method
US10576398B2 (en) 2011-08-24 2020-03-03 Qwtip Llc Disk-pack turbine
US10682653B2 (en) 2011-08-24 2020-06-16 Qwtip Llc Disk-pack turbine
US10790723B2 (en) 2010-08-24 2020-09-29 Qwtip Llc Disk-pack turbine
US10807478B2 (en) 2012-02-29 2020-10-20 Qwtip Llc Levitation and distribution system and method
US11339767B2 (en) 2010-08-24 2022-05-24 Qwtip Llc Disk array and disk-pack turbines

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2137151A1 (fr) * 1971-05-14 1972-12-29 Girodin Marius
FR2244924A1 (fr) * 1973-09-21 1975-04-18 Dupont Res & Invest Service
EP0002592A1 (fr) * 1977-12-08 1979-06-27 Clarence R. Possell Pompe centrifuge sans aubages et son fonctionnement
US4335994A (en) * 1978-08-30 1982-06-22 Gurth Max Ira Method and apparatus for pumping large solid articles
US4347032A (en) * 1977-12-08 1982-08-31 Possell Clarence R Method for pumping slurry and apparatus for use therewith

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2137151A1 (fr) * 1971-05-14 1972-12-29 Girodin Marius
FR2244924A1 (fr) * 1973-09-21 1975-04-18 Dupont Res & Invest Service
EP0002592A1 (fr) * 1977-12-08 1979-06-27 Clarence R. Possell Pompe centrifuge sans aubages et son fonctionnement
US4347032A (en) * 1977-12-08 1982-08-31 Possell Clarence R Method for pumping slurry and apparatus for use therewith
US4335994A (en) * 1978-08-30 1982-06-22 Gurth Max Ira Method and apparatus for pumping large solid articles

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10790723B2 (en) 2010-08-24 2020-09-29 Qwtip Llc Disk-pack turbine
EP2609040A4 (fr) * 2010-08-24 2018-07-04 Qwtip LLC Système et procédé de revitalisation et de traitement de l'eau
US11339767B2 (en) 2010-08-24 2022-05-24 Qwtip Llc Disk array and disk-pack turbines
WO2012027451A2 (fr) 2010-08-24 2012-03-01 Qwtip Llc Système et procédé de revitalisation et de traitement de l'eau
US11045750B2 (en) 2011-08-24 2021-06-29 Qwtip Llc Water treatment system and method
US11759730B2 (en) 2011-08-24 2023-09-19 Qwtip Llc Water treatment system
US10576398B2 (en) 2011-08-24 2020-03-03 Qwtip Llc Disk-pack turbine
US11919011B2 (en) 2011-08-24 2024-03-05 Qwtip Llc Retrofit attachments for water treatment systems
US10682653B2 (en) 2011-08-24 2020-06-16 Qwtip Llc Disk-pack turbine
US11141684B2 (en) 2011-08-24 2021-10-12 Qwtip Llc Water treatment system and method
US11628384B2 (en) 2011-08-24 2023-04-18 Qwtip Llc Water processing system and arrangement
US10463993B2 (en) 2011-08-24 2019-11-05 Qwtip Llc Water treatment system and water
US11344898B2 (en) 2011-08-24 2022-05-31 Qwtip Llc Disk-pack turbine for water treatment systems
US11192798B2 (en) 2012-02-28 2021-12-07 Qwtip Llc Gas production method using water as the source
US10464824B2 (en) 2012-02-28 2019-11-05 Qwtip Llc Gas production system and method
US11780743B2 (en) 2012-02-28 2023-10-10 Qwtip Llc Disk-pack turbine
US11814302B2 (en) 2012-02-28 2023-11-14 Qwtip Llc Water dissociation system
US10807478B2 (en) 2012-02-29 2020-10-20 Qwtip Llc Levitation and distribution system and method

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