GB2070687A - Improvements in or relating to fluid agitator assemblies - Google Patents

Improvements in or relating to fluid agitator assemblies Download PDF

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Publication number
GB2070687A
GB2070687A GB8104989A GB8104989A GB2070687A GB 2070687 A GB2070687 A GB 2070687A GB 8104989 A GB8104989 A GB 8104989A GB 8104989 A GB8104989 A GB 8104989A GB 2070687 A GB2070687 A GB 2070687A
Authority
GB
United Kingdom
Prior art keywords
pump casing
output shaft
fluid agitator
impeller
inlet port
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.)
Granted
Application number
GB8104989A
Other versions
GB2070687B (en
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.)
Toyo Denki Industrial Co Ltd
Original Assignee
Toyo Denki Industrial Co Ltd
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
Priority claimed from JP1998680U external-priority patent/JPS5925464Y2/en
Priority claimed from JP55019510A external-priority patent/JPS5850531B2/en
Application filed by Toyo Denki Industrial Co Ltd filed Critical Toyo Denki Industrial Co Ltd
Publication of GB2070687A publication Critical patent/GB2070687A/en
Application granted granted Critical
Publication of GB2070687B publication Critical patent/GB2070687B/en
Expired 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/25—Mixers with both stirrer and drive unit submerged in the material being mixed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/81—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow
    • B01F27/811—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow with the inflow from one side only, e.g. stirrers placed on the bottom of the receptacle, or used as a bottom discharge pump
    • B01F27/8111—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow with the inflow from one side only, e.g. stirrers placed on the bottom of the receptacle, or used as a bottom discharge pump the stirrers co-operating with stationary guiding elements, e.g. surrounding stators or intermeshing stators

Abstract

The assembly comprises an underwater motor 2 having an output shaft 3 on which an impeller 1 is fixedly mounted. The pump casing 6 is provided with an inlet port 4 in the lower end and at least one discharge port 5 in the circumferential wall thereof. The angular position of a nozzle 12 at each discharge port is variable. A short flexible hose 13 may be attached to a nozzle 12. A stirring blade 9 may be provided upstream of the impeller. The assembly has an agitating effect sufficient to attain rapid and vigorous floatation of deposits. <IMAGE>

Description

SPECIFICATION Improvements in or relating to fluid agitator assemblies The present invention relates to a fluid agitator assembly which may be used for agitating liquid so as to float deposits in the liquid, for instance, in a reservoir storing water containing not-yet-hardened concrete slurry or lime etc., or water such as filthy water containing much foul matter.
A known fluid agitator has a disadvantage in that it is difficult to attain sufficient floatation of deposits as the agitating force produced does not diffuse sufficiently and uniformly from the periphery of an agitator body along the overall. bottom surface of a liquid reservoir, with the result that the force is converted into an upward flow.
According to one aspect of the invention, there is provided a fluid agitator assembly comprising an underwater motor having an output shaft extending downwardly on which an impeller is fixedly mounted, and a pump casing mounted at the lower end portion of the motor and provided with an inlet port in the lower end and at least one discharge port in the circumferential wall thereof, the position and the number of the discharge ports being made variable.
According to another aspect of the invention, there is provided a fluid agitator assembly comprising an underwater motor having an output shaft on which an impeller is fixedly mounted, and a pump casing mounted at the loWer end portion of the motor and provided with an inlet port in the lower end and one or more discharge ports in the circumferential wall thereof, the position and the number of the discharge ports being made variable, and the lower end portion of the output shaft extending below and through the inlet port of the pump casing and having fixedly mounted thereon an agitating blade.
Such a fluid agitator assembly can provide an agitating effect sufficent to attain rapid and vigorous floatation of deposits.
The invention will be further described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a front view of an embodiment of the present invention; Figure 2 is a front view showing another embodiment of the present invention; Figure 3 is a vertical sectional view showing parts of the embodiment of the present invention shown in Fig. 2.
Figures 4, 5, 6 and 7 are bottom views of embodiments of the present invention each having a different pump casing; and Figure 8 is a front view of an embodiment of the present invention wherein no perforate strainer is used.
As shown in Fig. 1 of the drawings, an underwater motor 2 of completely waterproof type having an output shaft 3 on which an impeller 1 is fixedly mounted is placed in water with the output shaft 3 being extended downwardly. A pump casing 6 is mounted on the underside of the motor 2 such that it concentrically surrounds the output shaft 3 and the impeller 1. The pump casing 6 is provided at the centre of its underside with an inlet port 4 and on its circumferential wall with one or more discharge ports 5, as shown in Figs. 4 to 7. Below the casing 6, there is provided a perforated strainer 7 having a plurality of apertures of a desired diameter fixed to the lower end of the pump casing.
The strainer 7 is supported on the floor 11 of a water reservoir by means of a frame 1 0.
In a second embodiment of the present invention shown in Figs. 2 and 3, the lower end portion of the output shaft 3 of the underwater motor 2 extends downwardly through the inlet port 4 of the pump casing 6 and a central throughhole 8 formed in the strainer 7, and a stirring blade 9 is fixedly mounted on the end portion of the output shaft 3.
An injection nozzle 1 2 indicated by phantom lines is coupled to each discharge port 5 in the pump casing 6 by a flange coupling as shown in Figs. 1 and 2. The injection nozzle 1 2 is designed to freely shift its injection direction by changing the angular position thereof relative to the circumference of the flange surface of the discharge port 5. A flexible hose 1 3 of a desired length may be mounted at the outward end of the nozzle 1 2.
Alternatively, the flexible hose 1 3 may be substituted for the nozzle 1 2. In either case, the flexible hose 1 3 moves or "wriggles" upon receipt of the counterforce of water, thus further enhancing the random movement of the injection direction of the nozzle 1 2.
Operation of the fluid agitator assembly will now be described.
In the case of the first embodiment of the present invention wherein no stirring blade is used, the agitator assembly is sunk into water containing deposits stored in a water reservoir, and is placed in position on the bottom wall of the reservoir. The underwater motor 2 is then actuated. Actuation of the motor 2 causes rotation of the impeller 1 fixedly mounted on the output shaft 3 thereof, so that the water around the perforated strainer 7 together with deposits accumulated thereunder is sucked into the pump casing 6 through the apertures of the strainer 7 and the inlet port 4 of the casing 6.The water and the deposits sucked in the casing 6 are then discharged through the discharge port 5 and the injection nozzle 1 2 and/or the flexible hose 1 3 as a jet flow into the reservoir in a predetermined direction (for example, a direction normal or parallel to the bottom surface of the reservoir, or an upward direction), whereby the water and deposits within the reservoir are subjected to vigorous agitating action of the water jet.
In the case of the second embodiment of the present invention wherein the stirring blade 9 is used, the agitator assembly is operated substantially in the same manner as in the first embodiment. However, because the output shaft 3 of the motor 2 is also provided with the stirring blade 9 on the end portion thereof, the stirring blade 9 is rotated together with the impeller 1. Because of this construction, the rotation of the output shaft 3 can provide a far greater agitating force than the output shaft of the first embodiment.
When the stirring blade 9 is rotated simultaneously with the impeller 1, the water under the perforated strainer 7 is caused to move toward the blade 9, and is forcibly fed in the direction parallel to the bottom surface of the reservoir by the blade 9. The energy contained in the moving water gives sufficient agitation of deposits built up on the bottom of the reservoir, thereby to create a turbulent flow causing the deposits to be suspended in the water.Such a turbulent flow is guided in the upward and radial direction by the counterforce of the bottom wall, and moves toward the perforate strainer 7. the turbulent flow is then vigorously sucked into the pump casing 6 through the apertures of the perforated strainer 7 and the inlet port 8 by the rotation of the rotating impeller 1, and is discharged as a jet flow into the reservoir through the discharge port 5 and the injection nozzle 1 2 and/or the flexible hose 13, so that the water in the reservoir is vigorously agitated.
In the above described first and second embodiments, the direction and the number of the injection nozzles 1 2 can be adjusted at will be changing the angular position thereof relative to the circumference of the flange of the discharge port 5. This renders it possible either to effect uniform agitation over the entire bottom of the reservoir, or to effect local agitation only with respect to the area of the bottom of the reservoir on which considerable amounts of deposits are accumulated. In addition, provision of the flexible hose 1 3 allows for random variation of the injecting direction of the discharged water in the reservoir. This ensures rapid, vigorous and uniform floatation of deposits that are built up not only on the area of the bottom of the reservoir under the agitator assembly, but also on the overall bottom thereof, and prevents re-settling of the suspended matter in the water.

Claims (5)

1. A fluid agitator assembly comprising an underwater motor having an output shaft extending downwardly on which an impeller is fixedly mounted, and a pump casing mounted at the lower end portion of the motor and provided with an inlet port in the lower end and at least one discharge port in the circumferential wall thereof,the position and the number of the discharge ports being made variable.
2. A fluid agitator assembly as claimed in claim 1, in which a perforated strainer is provided at the lower end of the pump casing.
3. A fluid agitator assembly comprising an underwater motor having an output shaft on which an impeller is fixedly mounted, and a pump casing mounted at the lower end portion of the motor and provided with an inlet port in the lower end and one or more discharge ports in the circumferential wall thereof, the position and the number of the discharge ports being made variable, and the lower end portion of the output shaft extending below and through the inlet port of the pump casing and having fixedly mounted thereon an agitating blade.
4. A fluid agitator assembly as claimed in claim 3, in which a perforated strainer is provided at the lower end of the pump casing, the lower end portion of the output shaft extending below and through the inlet port of the pump casing and through a through-bore provided in the strainer.
5. A fluid agitator assembly substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
GB8104989A 1980-02-19 1981-02-17 Fluid agitator assemblies Expired GB2070687B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1998680U JPS5925464Y2 (en) 1980-02-19 1980-02-19 fluid stirring device
JP55019510A JPS5850531B2 (en) 1980-02-19 1980-02-19 fluid stirring device

Publications (2)

Publication Number Publication Date
GB2070687A true GB2070687A (en) 1981-09-09
GB2070687B GB2070687B (en) 1984-11-14

Family

ID=26356343

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8104989A Expired GB2070687B (en) 1980-02-19 1981-02-17 Fluid agitator assemblies

Country Status (11)

Country Link
AU (1) AU526578B2 (en)
BE (1) BE887543A (en)
CA (1) CA1173025A (en)
DE (1) DE3105765A1 (en)
ES (1) ES8204303A1 (en)
FR (1) FR2475925B1 (en)
GB (1) GB2070687B (en)
IT (1) IT1143515B (en)
NL (1) NL190359C (en)
PT (1) PT72526B (en)
SE (1) SE447065B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0110562A2 (en) * 1982-10-28 1984-06-13 R. Goodwin International Ltd Agitating particulate solids
GB2212561A (en) * 1987-11-18 1989-07-26 Mitsubishi Electric Corp In-tank type fuel pump
GB2249135A (en) * 1990-10-03 1992-04-29 Mars G B Ltd A centrifugal impeller
US5141392A (en) * 1990-02-28 1992-08-25 Itt Flygt Ab Connecting arrangement between impeller shaft and mixer
US5238363A (en) * 1987-10-30 1993-08-24 Baker Hughes Incorporated Dual suction vertical pump with pendant auger
EP1270952A2 (en) * 2001-06-19 2003-01-02 Ohta Patent Office Stirring pump
CN102434492A (en) * 2011-12-22 2012-05-02 上海成峰流体设备有限公司 Stirring pump base with two layers of spaces
EP2960375A1 (en) * 2014-06-26 2015-12-30 Dragflow S.r.l. Submersible pump
US9897090B2 (en) 2007-05-21 2018-02-20 Weir Minerals Australia Ltd. Pumps
CN109611347A (en) * 2018-12-12 2019-04-12 孔祥真 Centralized liquid relaying compression air compressor machine
CN113339270A (en) * 2021-06-16 2021-09-03 江苏大学镇江流体工程装备技术研究院 Solid-liquid separation type non-clogging pump

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4456424A (en) * 1981-03-05 1984-06-26 Toyo Denki Kogyosho Co., Ltd. Underwater sand pump
AU585654B2 (en) * 1985-10-04 1989-06-22 Aeration & Allied Technology Pty Limited Improved conversion of septic tanks and holding wells to secondary treatment
ITUB20155592A1 (en) * 2015-10-26 2017-04-26 Silla Martini CENTRIFUGAL AERATOR FOR LAKES AND / OR SIMILAR
CN111102203B (en) * 2019-12-31 2021-03-12 江苏阿兰贝尔环保科技有限公司 Smash integration pump station that draws water

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BE361098A (en) *
NL27347C (en) *
NL71622C (en) * 1946-03-30
FR947264A (en) * 1946-06-05 1949-06-28 Suzler Freres Fragmentation device
GB773351A (en) * 1954-08-05 1957-04-24 Jacuzzi Bros Inc Improvements in or relating to hydrotherapy apparatus
GB891152A (en) * 1957-11-21 1962-03-14 Peter Willems A method and apparatus for continuously changing the structure of substances or mixtures of such substances
DE1528766A1 (en) * 1964-04-29 1970-01-22 Hans Grenzebacch Pump for pumping out a viscous medium, e.g. Alluvial dung, from a storage container
DE1301957B (en) * 1965-02-08 1969-08-28 Baehrs Adolf Motor-driven well pump with vertical shaft
DE1528969C3 (en) * 1966-01-28 1974-04-11 Diedrich Baehrs, Landmaschinen, Inhaber Adolf Baehrs, 2873 Bookholzberg Slurry pump
FR2453669A1 (en) * 1979-04-12 1980-11-07 Iakovenko Marinitch Nicolas four-function mixer - interchanged by axial displacement of turbine. i.e. for suctioning fluid at desired depth, grinding particles, homogenising and pumping

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0110562A2 (en) * 1982-10-28 1984-06-13 R. Goodwin International Ltd Agitating particulate solids
GB2131486A (en) * 1982-10-28 1984-06-20 Goodwin R Int Ltd Pumps combined with agitators
EP0110562A3 (en) * 1982-10-28 1984-09-05 R. Goodwin International Ltd Agitating particulate solids
US5238363A (en) * 1987-10-30 1993-08-24 Baker Hughes Incorporated Dual suction vertical pump with pendant auger
GB2212561A (en) * 1987-11-18 1989-07-26 Mitsubishi Electric Corp In-tank type fuel pump
US4966522A (en) * 1987-11-18 1990-10-30 Mitsubishi Denki Kabushiki Kaisha In-tank type fuel pump
GB2212561B (en) * 1987-11-18 1991-08-07 Mitsubishi Electric Corp In-tank type fuel pump
US5141392A (en) * 1990-02-28 1992-08-25 Itt Flygt Ab Connecting arrangement between impeller shaft and mixer
GB2249135A (en) * 1990-10-03 1992-04-29 Mars G B Ltd A centrifugal impeller
EP1270952A3 (en) * 2001-06-19 2004-01-07 Ohta Patent Office Stirring pump
EP1270952A2 (en) * 2001-06-19 2003-01-02 Ohta Patent Office Stirring pump
US6698916B2 (en) * 2001-06-19 2004-03-02 Toyo Denki Industrial Co., Ltd. Underwater agitation pump
CN1293308C (en) * 2001-06-19 2007-01-03 东洋电机工业所股份有限公司 Stirring pump in water
US9897090B2 (en) 2007-05-21 2018-02-20 Weir Minerals Australia Ltd. Pumps
US11274669B2 (en) 2007-05-21 2022-03-15 Weir Minerals Australia Ltd. Relating to pumps
CN102434492A (en) * 2011-12-22 2012-05-02 上海成峰流体设备有限公司 Stirring pump base with two layers of spaces
EP2960375A1 (en) * 2014-06-26 2015-12-30 Dragflow S.r.l. Submersible pump
US9863440B2 (en) 2014-06-26 2018-01-09 Dragflow S.R.L. Submersible pump
CN109611347A (en) * 2018-12-12 2019-04-12 孔祥真 Centralized liquid relaying compression air compressor machine
CN113339270A (en) * 2021-06-16 2021-09-03 江苏大学镇江流体工程装备技术研究院 Solid-liquid separation type non-clogging pump
CN113339270B (en) * 2021-06-16 2022-06-21 江苏大学镇江流体工程装备技术研究院 Solid-liquid separation type non-clogging pump

Also Published As

Publication number Publication date
GB2070687B (en) 1984-11-14
BE887543A (en) 1981-06-15
IT1143515B (en) 1986-10-22
CA1173025A (en) 1984-08-21
AU526578B2 (en) 1983-01-20
ES499569A0 (en) 1982-05-01
SE8100828L (en) 1981-08-20
PT72526B (en) 1982-02-26
SE447065B (en) 1986-10-27
FR2475925A1 (en) 1981-08-21
NL8100598A (en) 1981-09-16
PT72526A (en) 1981-02-26
FR2475925B1 (en) 1987-05-22
AU6732281A (en) 1981-09-03
NL190359C (en) 1994-02-01
NL190359B (en) 1993-09-01
DE3105765A1 (en) 1982-01-28
IT8167227A0 (en) 1981-02-18
ES8204303A1 (en) 1982-05-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980217