WO1992015788A1 - Pump having spiral blades - Google Patents
Pump having spiral blades Download PDFInfo
- Publication number
- WO1992015788A1 WO1992015788A1 PCT/JP1991/000265 JP9100265W WO9215788A1 WO 1992015788 A1 WO1992015788 A1 WO 1992015788A1 JP 9100265 W JP9100265 W JP 9100265W WO 9215788 A1 WO9215788 A1 WO 9215788A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pump
- blades
- casing
- spiral
- drive shaft
- Prior art date
Links
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
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D3/00—Axial-flow pumps
- F04D3/02—Axial-flow pumps of screw type
Definitions
- the present invention relates to a vertical pump having spiral blades, and more particularly to a pump suitable for sewage treatment and the like.
- a rotor having a large number of blades radially extending in a plane perpendicular to the pump main axis is provided at a lower position in the pump casing, and is rotated from the lower end of the casing. Water is being sucked up.
- this vertical shaft pump has a plurality of blades extending radially toward the casing in a plane perpendicular to the pump main axis, so that the passage area of the water flow is narrowed, and especially the sewage is drained.
- the drawback is that clogging up with cloths and solids that can be contained in the sewage when sucking up o
- centrifugal pump has a drawback that water sucked in the direction of the main axis of the pump flows in a direction orthogonal to the main axis, so that solids and the like are clogged in the pump.
- a vertical shaft type non-blocking pump may be required depending on the water pumping environment.
- An object of the present invention is a this to provide a pump of the non-occlusive, and a large vertical shaft type lift and vomiting out Shi amount c Disclosure of the invention
- one spiral blade is fixed to the tip of the rotary drive shaft of the pump, and the outer peripheral edge of the one spiral blade is fixed.
- the casing extends in the direction of the rotary drive shaft, the spiral wings are arranged with good balance with respect to the rotary drive shaft, and The interval between the wing portions is wide, and a plurality of long screwed guide vanes are arranged in the flow path above the wing.
- the vertical shaft mixed-flow pump has a bowl-shaped casing at the portion where the spiral blades and guide blades are located.
- a plurality of spiral blades according to the above aspect are provided, and the plurality of spiral blades are mutually phase-equal to each other around a rotary drive shaft of the pump. It is arranged shifted.
- the volumetric efficiency can be increased, the head can be increased, and the diameter of the pump can be increased, so that the discharge amount can be increased.
- the larger the diameter of the pump the larger the blade and the weight of the blade.Therefore, a single spiral blade tends to cause poor balance with respect to the blade drive shaft, causing harmful vibration to the pump.
- the pump of the present invention is provided with a plurality of spiral blades, so that the balance is very good and the vibration applied to the pump is extremely small. This is because when the number of spiral blades is two, the suction port and the discharge port in the casing are positioned axially symmetric with respect to the pump main axis, so that a good balance is obtained. Similarly, when three spiral blades are provided, the same effect can be obtained since the suction port and the discharge port are symmetrically distributed.
- FIG. 1 is a schematic cross-sectional view of a vertical pump having one or more spiral blades according to the present invention.
- FIG. 2 is a partial cross-sectional view showing the tip of the pump shown in FIG. 1, and shows a case having one spiral blade.
- FIG. 3 is a partial cross-sectional view showing the tip of the pump shown in FIG. 1, and shows a case having two spiral blades.
- FIG. 4 is a bottom view of FIG.
- FIG. 5 is a bottom view of the pump of the present invention having three spiral blades.
- FIG. 1 is a schematic view of a pump 1 according to the present invention, in which a hub 8 is fixed to a distal end of a rotary drive shaft 2 rotated by a driving means, for example, a motor (not shown). At least one spiral wing 10 is attached.
- a driving means for example, a motor (not shown).
- At least one spiral wing 10 is attached.
- the casing 20 is lengthened. Therefore, for maintenance of the pump, between the spiral blades 10 and the guide blades 14 and between the guide blades 14.
- the middle part is divided into multi-stage parts 21, 22, and 23.
- FIG. 2 is a partial cross-sectional side view showing a main part of a lower end portion of the pump in FIG. 1, showing a pump 1 having one spiral blade 10.
- the wing 10 has a shape wound around the rotary drive shaft 2 in an appropriate angle spiral.
- the wing 10 is attached to the hub 8 at its proximal end 30, with the outer peripheral edge 32 opposite the proximal end 30 approaching the inner surface of the casing 20.
- the hub 8 and the spiral wing 10 may be integrally formed as an object.
- the tip 33 of the spiral wing 10 extends below the tip 9 of the hub 8, so that a wide suction port 4 is formed by the two.
- the space between the upper and lower wings, which are the flow paths, is appropriately widened so that cloth and solid matter contained in sewage and the like to be pumped can pass.
- the pumping water is sucked from the suction port 4 and flows between the wing portions to the discharge port 5, and as described above, the plural screw guide blades 1 having a long length are provided. 4 rectified by c
- the spiral blade 10 is formed such that the weight balance with respect to the drive shaft 2 is improved.
- the head is continuously extended over a predetermined length in the drive shaft direction. Can be bigger
- the figure shows a vertical mixed flow pump 1 in which the portion including the spiral blades 10 and the guide blades 14 of the casing 20 has a pot-shaped bulging shape, but there is no pot-shaped portion.
- the entirety of the ring 20 may be a straight shaft type axial flow pump having a straight shape.
- FIG. 3 is a partial cross-sectional side view showing a main part of a lower end portion of the pump 1 in FIG. 1, and FIG. 4 is a bottom view in FIG. 3, in which two spiral blades 10 are provided. Pump 1 with 1 1 is shown.
- Each of the spiral blades 10 and 11 is manufactured by processing a plate material into a spiral shape. As can be seen from FIG. 4, the blades 10 and 11 are spiraled around the rotary drive shaft 2 of the pump 1 so as to be 180 ° out of phase with each other and to be axially symmetric. ° It is wound.
- the wings 10, 11 are attached to the hub 8 at their base ends 30, 30, respectively, and the outer peripheral parts 32, 32 opposite to the base ends 30, 30 are formed. Approaching the inner surface of Case 20.
- the tips 33, 33 of the spiral wings 10, 11 extend below the tip 9 of the hub 8, thereby forming wide suction ports 4, 4.
- the interval between the alternating wing portions of the two wings 10 and 11 serving as a flow path is appropriately widened so that cloth and solid matter contained in sewage and the like to be pumped can pass through.
- the blades are axially symmetric, and the suction port and the discharge port are also symmetrical, so that a very well-balanced pump is provided.
- energy is given to water at one eccentric power point, and energy cannot be added evenly. Poor volumetric efficiency.
- the discharge amount of the pump is proportional to the diameter of the pump.However, in the case of a single spiral wing, the whole volume of water cannot be covered for two reasons. The amount of exhalation does not increase in proportion to the amount.
- FIG. 5 the same three spiral blades 10, 11, 12 are replaced with the same two spiral blades of the pump of FIG. It shows the case where it is attached to. Also in this case, similarly to the pump shown in FIG. 3, the blades, the suction port and the discharge port are evenly distributed, so that the pump has good balance and high volumetric efficiency.
- the number of spiral blades to be provided is preferably determined according to the size of the casing 20 of the pump 1, conditions under which the fluid flow in the pump is uniform, and other design conditions.
- FIG. 3 shows a vertical shaft mixed flow pump 1 in which the portion including the spiral blades 10 and 11 of the casing 20 and the guide blades 14 are swelled in a bowl shape.
- the pump having the spiral wings of the present invention has a large lift and a large discharge amount. Therefore, the pump for pumping which is conventionally provided when the lift is small is provided. It can be used in various industries because it has the advantage of eliminating the need for a relay station.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002080591A CA2080591C (en) | 1991-02-28 | 1991-02-28 | Pump having a single or a plurality of helical blades |
PCT/JP1991/000265 WO1992015788A1 (en) | 1991-02-28 | 1991-02-28 | Pump having spiral blades |
GB9221073A GB2259113B (en) | 1991-02-28 | 1991-02-28 | Pump having a single or a plurality of helical blades |
EP91904797A EP0527227B1 (en) | 1991-02-28 | 1991-02-28 | Pump having spiral blades |
AU73306/91A AU654269B2 (en) | 1991-02-28 | 1991-02-28 | Pump having spiral blades |
DE69119765T DE69119765T2 (de) | 1991-02-28 | 1991-02-28 | Pumpe mit spiralförmigen schaufeln |
DK91904797.7T DK0527227T3 (da) | 1991-02-28 | 1991-02-28 | Pumpe med spiralvinger |
KR92702274A KR960009777B1 (en) | 1991-02-28 | 1992-09-21 | Pump having spirial blades |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1991/000265 WO1992015788A1 (en) | 1991-02-28 | 1991-02-28 | Pump having spiral blades |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992015788A1 true WO1992015788A1 (en) | 1992-09-17 |
Family
ID=14014280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1991/000265 WO1992015788A1 (en) | 1991-02-28 | 1991-02-28 | Pump having spiral blades |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0527227B1 (ja) |
KR (1) | KR960009777B1 (ja) |
AU (1) | AU654269B2 (ja) |
CA (1) | CA2080591C (ja) |
DE (1) | DE69119765T2 (ja) |
DK (1) | DK0527227T3 (ja) |
GB (1) | GB2259113B (ja) |
WO (1) | WO1992015788A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010537097A (ja) * | 2007-08-16 | 2010-12-02 | フリデコ アクチェンゲゼルシャフト | ポンプロータ及びそのポンプロータを備えるポンプ |
CN113027821A (zh) * | 2021-04-01 | 2021-06-25 | 中国机械工业第二建设工程有限公司 | 一种潜水排污泵用安装辅助设备 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5989083A (en) * | 1995-04-28 | 1999-11-23 | Ishigaki Company Limited | Water jet propulsion device for vessels |
NL2003467C2 (nl) | 2009-09-10 | 2011-03-14 | Nijhuis Pompen B V | Visvriendelijke pomp- of turbineinrichting. |
NL2008948C2 (nl) * | 2012-06-06 | 2013-12-09 | G A M Manshanden Man B V | Scheepsschroef. |
WO2014047619A2 (en) * | 2012-09-24 | 2014-03-27 | Chris Rorres | Methods and apparatus for moving fluid using a strake |
GB201614460D0 (en) * | 2016-08-24 | 2016-10-05 | Rotech Group Ltd | Improvements in and relating to underwater excavation apparatus |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS328084Y1 (ja) * | 1955-05-04 | 1957-07-29 | ||
JPS495002U (ja) * | 1972-04-13 | 1974-01-17 | ||
JPS57181997A (en) * | 1981-04-30 | 1982-11-09 | Ebara Corp | Single-blade impeller pump |
JPS63126588U (ja) * | 1987-02-13 | 1988-08-18 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB783468A (en) * | 1954-11-03 | 1957-09-25 | Borg Warner | Improvements in or relating to pump assemblies |
US3163119A (en) * | 1961-07-03 | 1964-12-29 | North American Aviation Inc | Inducer |
US3148464A (en) * | 1962-06-07 | 1964-09-15 | Kenneth M Jones | Dredging apparatus |
US3156190A (en) * | 1963-03-14 | 1964-11-10 | Hidrostal | Pump impeller |
US3398694A (en) * | 1966-08-11 | 1968-08-27 | Marine Constr & Design Co | Submersible pump device for net brailing |
AU2513871A (en) * | 1971-02-05 | 1972-08-10 | Ernest Alfred Keller Ainslie | Impeller for liquids |
US3771900A (en) * | 1971-10-14 | 1973-11-13 | S Baehr | Graduated screw pump |
JPS495002A (ja) * | 1972-04-27 | 1974-01-17 | ||
SE376051B (ja) * | 1973-05-09 | 1975-05-05 | Stenberg Flygt Ab | |
US4063849A (en) * | 1975-02-12 | 1977-12-20 | Modianos Doan D | Non-clogging, centrifugal, coaxial discharge pump |
GB1561454A (en) * | 1976-12-20 | 1980-02-20 | Inst Francais Du Petrole | Devices for pumping a fluid comprising at least a liquid |
JPS5922633B2 (ja) * | 1980-11-07 | 1984-05-28 | 株式会社神戸製鋼所 | 低水素系被覆ア−ク溶接棒 |
JPS63126588A (ja) * | 1986-11-17 | 1988-05-30 | 増田 閃一 | 超微細粒子除去装置 |
-
1991
- 1991-02-28 CA CA002080591A patent/CA2080591C/en not_active Expired - Fee Related
- 1991-02-28 AU AU73306/91A patent/AU654269B2/en not_active Ceased
- 1991-02-28 EP EP91904797A patent/EP0527227B1/en not_active Expired - Lifetime
- 1991-02-28 GB GB9221073A patent/GB2259113B/en not_active Expired - Fee Related
- 1991-02-28 DK DK91904797.7T patent/DK0527227T3/da active
- 1991-02-28 WO PCT/JP1991/000265 patent/WO1992015788A1/ja active IP Right Grant
- 1991-02-28 DE DE69119765T patent/DE69119765T2/de not_active Expired - Fee Related
-
1992
- 1992-09-21 KR KR92702274A patent/KR960009777B1/ko not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS328084Y1 (ja) * | 1955-05-04 | 1957-07-29 | ||
JPS495002U (ja) * | 1972-04-13 | 1974-01-17 | ||
JPS57181997A (en) * | 1981-04-30 | 1982-11-09 | Ebara Corp | Single-blade impeller pump |
JPS63126588U (ja) * | 1987-02-13 | 1988-08-18 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0527227A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010537097A (ja) * | 2007-08-16 | 2010-12-02 | フリデコ アクチェンゲゼルシャフト | ポンプロータ及びそのポンプロータを備えるポンプ |
CN113027821A (zh) * | 2021-04-01 | 2021-06-25 | 中国机械工业第二建设工程有限公司 | 一种潜水排污泵用安装辅助设备 |
CN113027821B (zh) * | 2021-04-01 | 2022-07-15 | 中国机械工业第二建设工程有限公司 | 一种潜水排污泵用安装辅助设备 |
Also Published As
Publication number | Publication date |
---|---|
DE69119765D1 (de) | 1996-06-27 |
GB2259113B (en) | 1995-05-17 |
EP0527227A1 (en) | 1993-02-17 |
CA2080591A1 (en) | 1992-08-29 |
KR960009777B1 (en) | 1996-07-24 |
GB2259113A (en) | 1993-03-03 |
DK0527227T3 (da) | 1996-12-23 |
GB9221073D0 (en) | 1992-11-18 |
EP0527227A4 (en) | 1993-07-28 |
DE69119765T2 (de) | 1997-01-02 |
EP0527227B1 (en) | 1996-05-22 |
KR930700776A (ko) | 1993-03-16 |
AU654269B2 (en) | 1994-11-03 |
CA2080591C (en) | 1999-07-27 |
AU7330691A (en) | 1992-10-06 |
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