GB930474A - Improvements in centrifugal pumps and the like - Google Patents
Improvements in centrifugal pumps and the likeInfo
- Publication number
- GB930474A GB930474A GB2051/61A GB205161A GB930474A GB 930474 A GB930474 A GB 930474A GB 2051/61 A GB2051/61 A GB 2051/61A GB 205161 A GB205161 A GB 205161A GB 930474 A GB930474 A GB 930474A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluid
- casing
- impeller
- energy
- volute
- 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.)
- Expired
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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4286—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps inside lining, e.g. rubber
-
- 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
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
- F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
-
- 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
- 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
- F04D29/2238—Special flow patterns
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/288—Part of the wheel having an ejecting effect, e.g. being bladeless diffuser
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Lubricants (AREA)
Abstract
930,474. Centrifugal pumps &c. RESEARCH & DEVELOPMENT PTY. Ltd. Jan. 18, 1961 [Jan. 19, 1960], No. 2051/61. Class 110 (1). In a centrifugal pump, blower, fan, compressor or the like of the volate type, means are provided for segregating and directing or for producing, segregating, and directing fluid of differing energy levels so that in the casing fluid of higher energy level envelops or substantially envelops fluid of lower energy level. The outer end of each impeller blade 4, Fig. 2, is formed with a groove 11 to reduce the energy imparted to the fluid in a zone 13 below that imparted to the fluid in two side zones 12, to compensate for the energy losses caused by friction between the casing walls and the fluid in the zones 12, whereby the fluid enters the discharge volute 20 with substantially uniform energy. The groove 11 is offset from the centre line of the impeller blade towards the impeller back plate 5 to counteract the effect of the single axial intake 8 which would otherwise cause the fluid energy to be greater adjacent the back plate 5 than adjacent the front plate 6. The groove 11 may extend to the back plate 5 which may then extend radially beyond the groove to impart additional energy by frictional drag. The discharge volute may in this case be offset from the central plane of the impeller. To assist in directing the higher energy fluid in the zones 12 towards the casing walls, the impeller side plates 5, 6 may be flared outwardly at 16; the casing side walls may be correspondingly bevelled at 43 and 54. To exclude higher energy fluid from the discharge, the entry 19, Fig. 4, to the volute 20 is located in a circumferential ridge 22, Figs. 2 and 4, with sloping sides 23 and located nearer the pump axis than the nearby outer wall 21 of the casing, the ends of the ridge merging into the outer wall at 24 and 25. The ridge 22, which contains the cutwater 26, may be offset from the central plane of the casing. The crosssectional area of the casing increases, as is usual, in the direction of rotation from the cutwater 26 to the beginning 28 of the volute 20 to accommodate the fluid discharged by the impeller, and thereafter decreases so as to maintain a constant average velocity in the region of the entry 19 to the volute. The impeller front plate 6 may be omitted. Where the fluid is abrasive, as with slurry or dredge pumps, the casing is provided with a peripheral lining, which may be formed in two parts 29, 31, and separate side linings 33, 45. The linings and the impeller are of hard metal as in the lower half of each figure or of natural or synthetic rubber bonded to metal reinforcements as in the upper half. Where hard metal linings are used, resilient sealing rings such as 57 are provided between the linings and the outer shell of the casing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU56621/60A AU252816B2 (en) | 1960-01-19 | Improvements in centrifugal pumps ofthe volute'type |
Publications (1)
Publication Number | Publication Date |
---|---|
GB930474A true GB930474A (en) | 1963-07-03 |
Family
ID=3742192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2051/61A Expired GB930474A (en) | 1960-01-19 | 1961-01-18 | Improvements in centrifugal pumps and the like |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH405938A (en) |
ES (1) | ES264124A1 (en) |
GB (1) | GB930474A (en) |
NL (1) | NL109992C (en) |
SE (1) | SE311821B (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1633983A1 (en) * | 2003-06-16 | 2006-03-15 | Weir Warman Ltd | Improved pump impeller |
CN102889241A (en) * | 2012-03-27 | 2013-01-23 | 上海阿波罗机械股份有限公司 | Pump body for PCS (passive containment cooling system) recirculating pump |
CN105201914A (en) * | 2015-10-19 | 2015-12-30 | 肖琼 | Wear pump |
CN107762977A (en) * | 2017-11-21 | 2018-03-06 | 广州市拓道新材料科技有限公司 | A kind of wear-resisting pump housing and preparation method thereof |
CN113606184A (en) * | 2021-08-26 | 2021-11-05 | 江苏大学 | Centrifugal pump with self-balancing axial force |
CN113958506A (en) * | 2021-07-31 | 2022-01-21 | 高涛 | Centrifugal pump |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2840667A1 (en) | 2002-06-07 | 2003-12-12 | Legris Sa | MEANS FOR CONNECTING TWO DRIVING ELEMENTS |
CN112253539A (en) * | 2020-09-18 | 2021-01-22 | 江苏亚龙水力设备有限公司 | Mixed flow pump with flow guide device and height-adjustable base |
-
1961
- 1961-01-18 GB GB2051/61A patent/GB930474A/en not_active Expired
- 1961-01-19 ES ES0264124A patent/ES264124A1/en not_active Expired
- 1961-01-19 NL NL260234A patent/NL109992C/nl active
- 1961-01-19 SE SE531/61A patent/SE311821B/xx unknown
- 1961-01-19 CH CH62461A patent/CH405938A/en unknown
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1633983A1 (en) * | 2003-06-16 | 2006-03-15 | Weir Warman Ltd | Improved pump impeller |
EP1633983A4 (en) * | 2003-06-16 | 2007-04-25 | Weir Minerals Australia Ltd | Improved pump impeller |
US7329085B2 (en) | 2003-06-16 | 2008-02-12 | Weir Minerals Australia Ltd. | Pump impeller |
CN100482948C (en) * | 2003-06-16 | 2009-04-29 | 伟尔矿业澳大利亚有限公司 | Improved pump impeller |
EP1633983B1 (en) | 2003-06-16 | 2017-01-04 | Weir Minerals Australia Ltd | Improved pump impeller |
CN102889241A (en) * | 2012-03-27 | 2013-01-23 | 上海阿波罗机械股份有限公司 | Pump body for PCS (passive containment cooling system) recirculating pump |
CN105201914A (en) * | 2015-10-19 | 2015-12-30 | 肖琼 | Wear pump |
CN107762977A (en) * | 2017-11-21 | 2018-03-06 | 广州市拓道新材料科技有限公司 | A kind of wear-resisting pump housing and preparation method thereof |
CN113958506A (en) * | 2021-07-31 | 2022-01-21 | 高涛 | Centrifugal pump |
CN113606184A (en) * | 2021-08-26 | 2021-11-05 | 江苏大学 | Centrifugal pump with self-balancing axial force |
Also Published As
Publication number | Publication date |
---|---|
DE1403867A1 (en) | 1969-01-30 |
CH405938A (en) | 1966-01-15 |
DE1403867B2 (en) | 1976-03-18 |
SE311821B (en) | 1969-06-23 |
ES264124A1 (en) | 1961-07-16 |
NL109992C (en) | 1964-11-16 |
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