WO2003062646A1 - Tete de pompe - Google Patents
Tete de pompe Download PDFInfo
- Publication number
- WO2003062646A1 WO2003062646A1 PCT/JP2003/000463 JP0300463W WO03062646A1 WO 2003062646 A1 WO2003062646 A1 WO 2003062646A1 JP 0300463 W JP0300463 W JP 0300463W WO 03062646 A1 WO03062646 A1 WO 03062646A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- impeller
- main plate
- main
- plate
- joined
- 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
- F04D29/20—Mounting rotors on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage 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
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid 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
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
- F04D29/2227—Construction and assembly for special materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/50—Building or constructing in particular ways
- F05D2230/54—Building or constructing in particular ways by sheet metal manufacturing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/17—Alloys
- F05D2300/171—Steel alloys
Definitions
- the present invention relates to an impeller used for a pump or the like, and more particularly to an impeller manufactured by press-forming a sheet metal material.
- FIG. 5 is a schematic sectional view of a conventional impeller. As shown in FIG. 5, the impeller 100 is composed of a disk-shaped main plate 110, wings 120 joined to the main plate 110, and side plates 130 having suction ports. ing.
- the blades 120 of the impeller 100 are stamped out of sheet metal and press-formed, and then joined to the main plate 110 by welding.
- the conventional impeller as shown in FIG. 5, since the inner peripheral end 122 of the blade 120 joined to the main plate 110 is sharp, the inner peripheral end A large load is applied to the mold part from which the part 122 is punched, and this part wears out early.
- the main plate 110 before joining the wings 120 is overlapped and arranged, and the parts are overlapped by the automatic welding machine.
- the main plates 110 are lifted one by one and transported for welding.
- the main plate 110 since the main plate 110 has a flat disk shape, when the main plates are arranged in an overlapping manner as described above, the adjacent main plates adhere and adhere to each other. For this reason, not one main plate 1 1 0 When trying to lift one, the adjacent main plate is also lifted and transported together, causing problems such as causing an error stop of the welding machine. Disclosure of the invention
- the present invention has been made in view of such problems of the related art, and increases productivity by extending the life of a mold for forming a wing and preventing an error stop in a welding machine.
- the purpose of the present invention is to provide an impeller that can perform the operation.
- a first aspect of the present invention includes a disk-shaped main plate, a wing joined to the main plate, and a side plate having a suction port.
- a boss hole for attaching a boss to be engaged with a pump shaft is formed at a central portion of the main plate, and a step portion is formed around the boss hole formed on the main plate by drawing.
- an impeller including a disk-shaped main plate, a blade joined to the main plate, and a side plate having a suction port, wherein an inner peripheral side of the blade is joined to the main plate.
- An impeller characterized by having rounded ends.
- the inner peripheral edge of the wing to be joined to the main plate is rounded. Is not taken. Therefore, it is possible to reduce the wear of the mold portion, to extend the life of the mold, and to improve the productivity of the impeller.
- a multi-stage pump according to the present invention includes a plurality of intermediate casings, the impeller accommodated in each intermediate casing, and a main shaft supporting the impeller.
- FIG. 1 is a longitudinal sectional view showing an impeller according to an embodiment of the present invention.
- FIG. 2 is a schematic view showing a state where the main plates of the impeller according to one embodiment of the present invention are overlaid.
- FIG. 3 is a partially enlarged view of FIG.
- FIG. 4 is a longitudinal sectional view showing a multi-stage pump using the impeller of the present invention.
- FIG. 5 is a longitudinal sectional view showing a conventional impeller.
- FIG. 6 is a schematic view showing a state where a main plate of a conventional impeller is overlaid.
- FIG. 1 is a longitudinal sectional view showing an impeller according to an embodiment of the present invention
- FIG. FIG. 3 is a partial enlarged view of FIG.
- the impeller 1 includes a main plate 10, wings 20 joined to the main plate 10, and a side plate 30 having a suction port.
- the main plate 10 is formed by stamping a sheet metal material such as stainless steel into a disk shape, and has a boss hole 12 for attaching a boss to be engaged with the pump shaft at the center.
- a step 14 is formed by press-drawing, and is lifted upward.
- the step portion 14 is formed around the boss hole 12, when the main plates 10 are arranged in an overlapping manner, when the main plate 10 is adjacent to the main plate 10 as shown in FIGS. A gap d is formed between them. Therefore, even when the main plates 10 are overlapped and arranged before the wings 20 are joined, a gap d is formed between the adjacent main plates 10, and the main plates 10 are prevented from sticking and adsorbing. Is done. For this reason, the adjacent main plate 10 is not lifted up, and it is possible to prevent an error stop of the welding machine and increase the productivity of the impeller.
- the gap d is 0.3 mm n! It is preferable to configure the thickness to be 0.4 mm.
- the inner peripheral end 22 of the blade 20 joined to the main plate 10 is rounded. Therefore, when the wings 20 are stamped and formed from a sheet metal material, a large load is not applied to the die portion for punching the inner peripheral end 22, and the wear of the die portion can be reduced. It becomes possible. Therefore, the life of the mold can be prolonged, and the productivity of the impeller can be increased.
- the inner end 22 is rounded.
- the inner peripheral end 22 may be formed to have an obtuse angle.
- FIG. 4 multistage pump using the impeller of the present invention shown in FIG.
- FIG. 4 is a longitudinal sectional view showing a multi-stage pump using the impeller of the present invention.
- a plurality of connected intermediate casings 42 are accommodated in an outer casing 41, and an impeller 1 attached to a main shaft 43 is provided in each of the intermediate casings 42. Is housed.
- a lower casing 45 is connected to a lower end of the outer casing 41, and the lower casing 45 has a suction port 45a and a discharge port 45b.
- the impeller mounting portion of the main shaft 43 includes a spline shaft portion, and a plurality of key grooves are formed in parallel with the shaft portion.
- a groove is formed in the boss hole 12 of the main plate 10 of the impeller 1 so as to fit into the spline shaft portion, and the impeller 1 is attached to the main shaft 43 by spline fitting.
- a distance piece 46 fitted to the spline shaft of the main shaft 43 is provided between the stage of the impeller 1 of the preceding stage and the stage of the next stage.
- the intermediate casing 42 is formed in a substantially cylindrical container shape, and the intermediate casing 42 is manufactured by press-forming a steel plate.
- a relief plate 47 is attached to the bottom surface 44 of the intermediate casing 42 by welding, and a return blade 49 is sandwiched between the relief plate 47 and the side plate 48 for welding. I have.
- a space for mounting the O-ring 50 is formed by the relief plate 47 and the adjacent intermediate casing 42.
- the pumped liquid sucked from the suction port 45a of the lower casing 45 is pressurized by the impeller 1 rotated by the main shaft 43, and the pressurized pumped liquid is released.
- plate 4 7 and side plate 4 8 It is guided to the suction part of the next stage impeller 1 through the flow path formed by the sandwiched return blade 49.
- the pumped liquid is pressurized by the impellers 1 of each stage, and recovers the pressure while passing through the flow path formed by the return blades 49 of each stage, and finally the lower casing 45 It is discharged to the outside from the discharge port 45b.
- the step is formed around the boss hole, a gap is formed between adjacent main plates when the main plates are arranged one on top of the other. Therefore, even when the main plates are overlapped and arranged before the wings are joined, a gap is formed between the adjacent main plates, and these main plates are prevented from adhering and adhering. For this reason, the adjacent main plates are not lifted together, and it is possible to prevent an error stop of the welding machine and increase the productivity of the impeller.
- the present invention is suitable for use in an impeller manufactured by press-forming a sheet metal material.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK03701819.9T DK1469204T3 (en) | 2002-01-21 | 2003-01-21 | scooters |
EP03701819.9A EP1469204B1 (en) | 2002-01-21 | 2003-01-21 | Impeller |
US10/501,886 US7247001B2 (en) | 2002-01-21 | 2003-01-21 | Impeller |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-12186 | 2002-01-21 | ||
JP2002012186A JP3953328B2 (ja) | 2002-01-21 | 2002-01-21 | 羽根車 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003062646A1 true WO2003062646A1 (fr) | 2003-07-31 |
Family
ID=27606037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/000463 WO2003062646A1 (fr) | 2002-01-21 | 2003-01-21 | Tete de pompe |
Country Status (6)
Country | Link |
---|---|
US (1) | US7247001B2 (ja) |
EP (1) | EP1469204B1 (ja) |
JP (1) | JP3953328B2 (ja) |
CN (1) | CN100395455C (ja) |
DK (1) | DK1469204T3 (ja) |
WO (1) | WO2003062646A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006008843A1 (en) * | 2004-07-16 | 2006-01-26 | Ebara Corporation | Centrifugal pump |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4593962B2 (ja) * | 2004-04-26 | 2010-12-08 | 株式会社荏原製作所 | 遠心ポンプ、及び遠心ポンプの製造方法 |
WO2011106780A1 (en) * | 2010-02-26 | 2011-09-01 | Ventions, Llc | Small scale high speed turbomachinery |
CN102011749A (zh) * | 2010-12-23 | 2011-04-13 | 江苏国泉泵业制造有限公司 | 采用圆头冲压叶片式无堵塞叶轮 |
CN103032374B (zh) * | 2013-01-17 | 2015-06-24 | 福州福发发电设备有限公司 | 中频发电机风扇及其生产工艺 |
CN104279188B (zh) * | 2014-10-29 | 2017-08-01 | 珠海格力电器股份有限公司 | 离心式风机及具有其的空调器 |
EP3181908B1 (de) * | 2015-12-17 | 2020-05-13 | Grundfos Holding A/S | Mehrstufige kreiselpumpe mit aus blech gebildeten zugankern |
WO2020118461A1 (es) * | 2018-12-14 | 2020-06-18 | Universidad Técnica Federico Santa María | Plataforma de elevación para la carga y descarga de cilindro de gas |
CN111706553A (zh) * | 2020-06-23 | 2020-09-25 | 西安航空学院 | 可预防入口低压空化的紧固螺母 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0055426A1 (en) * | 1980-12-29 | 1982-07-07 | LOWARA S.p.A. | Stage compartment structure for multistage pumps |
US4363601A (en) * | 1979-01-19 | 1982-12-14 | Oy Nokia Ab | Impeller in a centrifugal blower |
US5234317A (en) * | 1990-12-25 | 1993-08-10 | Ebara Corporation | Sheet metal interstage casing for a pump |
JPH06221299A (ja) * | 1993-01-29 | 1994-08-09 | Toshiba Corp | 多翼ファンおよびその製造方法 |
JPH0719195A (ja) * | 1993-06-29 | 1995-01-20 | Atago Seisakusho:Kk | 多翼ファン |
JPH0738694U (ja) * | 1993-12-20 | 1995-07-14 | 株式会社川本製作所 | 遠心ポンプの鋼製羽根車 |
Family Cites Families (19)
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US2228750A (en) * | 1939-09-07 | 1941-01-14 | Rexair Inc | Vacuum cleaner construction |
FR1300199A (fr) * | 1961-06-17 | 1962-08-03 | Turbine de pompe centrifuge, notamment pour petites pompes | |
US3265001A (en) * | 1964-04-24 | 1966-08-09 | Red Jacket Mfg Company | Centrifugal pump |
US3340813A (en) * | 1965-06-11 | 1967-09-12 | Itt | Centrifugal pumps |
DK115677B (da) * | 1966-08-09 | 1969-10-27 | Grundfos As | Centrifugalpumpe. |
US3884595A (en) * | 1974-05-15 | 1975-05-20 | Dresser Ind | Impeller and shaft assembly |
US4278399A (en) * | 1979-06-21 | 1981-07-14 | Kobe, Inc. | Pumping stage for multi-stage centrifugal pump |
CA1155712A (en) * | 1979-10-29 | 1983-10-25 | Rockwell International Corporation | Composite centrifugal impeller for slurry pumps |
DE3520218A1 (de) * | 1984-06-08 | 1985-12-12 | Hitachi, Ltd., Tokio/Tokyo | Laufrad fuer ein radialgeblaese |
GB2251035A (en) * | 1990-12-20 | 1992-06-24 | Dunphy Oil And Gas Burners Lim | Centrifugal fan |
GB2260788A (en) * | 1991-10-05 | 1993-04-28 | Jaguar Cars | Pump impeller |
US5336050A (en) * | 1993-05-06 | 1994-08-09 | Penn Ventilator Co. Inc. | Ventilator fan device |
US5328332A (en) * | 1993-05-25 | 1994-07-12 | Chiang Swea T | Wheel fan of range hood |
JP3020189B2 (ja) | 1993-07-05 | 2000-03-15 | アネルバ株式会社 | バイアススパッタによる薄膜形成方法 |
JPH0738694A (ja) | 1993-07-23 | 1995-02-07 | Sharp Corp | ファクシミリ装置 |
CA2131243A1 (en) | 1993-09-27 | 1995-03-28 | Kenneth R. Paulson | Process for forming a phosphor |
US6220819B1 (en) * | 2000-01-12 | 2001-04-24 | Industrial Technology Research Institute | Centrifugal pump impeller |
US6267555B1 (en) * | 2000-01-12 | 2001-07-31 | Industrial Technology Research Institute | Sheet metal casing for multistage pump and method for manufacturing the same |
TW415545U (en) * | 2000-02-02 | 2000-12-11 | Ind Tech Res Inst | Pump housing structure improvement of multi-step type pump |
-
2002
- 2002-01-21 JP JP2002012186A patent/JP3953328B2/ja not_active Expired - Lifetime
-
2003
- 2003-01-21 EP EP03701819.9A patent/EP1469204B1/en not_active Expired - Lifetime
- 2003-01-21 DK DK03701819.9T patent/DK1469204T3/en active
- 2003-01-21 CN CNB038025434A patent/CN100395455C/zh not_active Expired - Lifetime
- 2003-01-21 US US10/501,886 patent/US7247001B2/en not_active Expired - Lifetime
- 2003-01-21 WO PCT/JP2003/000463 patent/WO2003062646A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4363601A (en) * | 1979-01-19 | 1982-12-14 | Oy Nokia Ab | Impeller in a centrifugal blower |
EP0055426A1 (en) * | 1980-12-29 | 1982-07-07 | LOWARA S.p.A. | Stage compartment structure for multistage pumps |
US5234317A (en) * | 1990-12-25 | 1993-08-10 | Ebara Corporation | Sheet metal interstage casing for a pump |
JPH06221299A (ja) * | 1993-01-29 | 1994-08-09 | Toshiba Corp | 多翼ファンおよびその製造方法 |
JPH0719195A (ja) * | 1993-06-29 | 1995-01-20 | Atago Seisakusho:Kk | 多翼ファン |
JPH0738694U (ja) * | 1993-12-20 | 1995-07-14 | 株式会社川本製作所 | 遠心ポンプの鋼製羽根車 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006008843A1 (en) * | 2004-07-16 | 2006-01-26 | Ebara Corporation | Centrifugal pump |
Also Published As
Publication number | Publication date |
---|---|
EP1469204A4 (en) | 2010-04-14 |
JP3953328B2 (ja) | 2007-08-08 |
US20050002789A1 (en) | 2005-01-06 |
DK1469204T3 (en) | 2015-12-21 |
EP1469204B1 (en) | 2015-10-14 |
US7247001B2 (en) | 2007-07-24 |
CN1692230A (zh) | 2005-11-02 |
EP1469204A1 (en) | 2004-10-20 |
CN100395455C (zh) | 2008-06-18 |
JP2003214385A (ja) | 2003-07-30 |
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