GB770520A - Improvements in or relating to structures comprising a motor and a pump driven thereby - Google Patents
Improvements in or relating to structures comprising a motor and a pump driven therebyInfo
- Publication number
- GB770520A GB770520A GB3456053A GB3456053A GB770520A GB 770520 A GB770520 A GB 770520A GB 3456053 A GB3456053 A GB 3456053A GB 3456053 A GB3456053 A GB 3456053A GB 770520 A GB770520 A GB 770520A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- casing
- sleeve
- pump
- shaft
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/5893—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps heat insulation or conduction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mounting Of Bearings Or Others (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
770,520. Centrifugal pumps. HAYWARD TYLER & CO., Ltd., and IVANOFF, A. Dec. 8, 1954 [Dec. 11, 1953], No. 34560/53. Class 110 (1). [Also in Group XXXV] In a pump in which the pump and driving motor are mounted in a common casing to which the liquid being pumped has access, the common casing is in two parts, joined together in a plane of junction between the pump and motor, and when the casing parts are separated, the pump impeller, the rotor and stator of the motor and the shaft and bearings come away as a unit with one of the casing parts, and means are provided between the pump and the plane of junction to keep the latter relatively cool. In the centrifugal pump shown, the pump casing 4 is extended at 22 and 23 to house the driving motor and the driving shaft 2. The motor stator 5 is carried by a shell 8 to which is attached bearing housings 11, 12 which support journal bearings 9, 10 and a thrust bearing 13, all of the tilting-pad type. The shell 8 is attached to the casing part 23 by bolts 25 which also pass through the bearing housing 11. The latter carries a thick disc 18 which conducts heat from the shaft 2 to the casing part 22, where it is carried away by cooling water circulated, by way of pipes 49, 50, through an annular jacket 60. The lower part of the shaft 2 is made hollow to reduce the flow of heat through it. A sleeve 17 which closely surrounds the shaft 2 is welded to the disc 18 and has a flange 19 which engages the inner wall of the casing. Corrugated baffle discs 20 supported by the flange 19 and flat baffle discs 21 secured to the sleeve 17 help to retard the flow of heat towards the motor from the hot liquid being pumped. A disc 16 forming part of the thrust bearing 13 has an axial bore 37 and radial bores 38 to form a centrifugal impeller which pumps cooling liquid which flows to it from an inlet pipe 35 by way of ports 39 in a stationary skirt 33. The cooling liquid expelled through the bores 38 flows to the space above the motor, partly through the bearings 13, 10 and partly through ports 40. After passing through the motor, the cooling liquid flows to an outlet pipe 36 partly through ports 42, 43 and partly through bearing 9, the clearance space between the shaft 2 and sleeve 17, and ports 44. Ports 41 permit some of the cooling liquid which has passed through the motor to flow to the outside of the shell 8. A filter 45, which may be of asbestos, prevents sediment in the pumped liquid from reaching the bearings. After removal of bolts 24, the casing part 23 can be lifted away from the part 22, carrying with it all the inner mechanism. The lower part of the casing may be permanently welded to the associated piping. The discs 20, 21 may be replaced by an annular metal case filled with heat-resisting cement or ceramic material. According to the Provisional Specification, the stationary sleeve is increased in diameter at its top to accommodate part of the lower journal bearing, and the flange at the bottom of the sleeve has a circumferential groove in its periphery to take a sealing element such as a snap ring. The flange is thickened at its periphery to provide a clearance between the major portion of the flange and the lowermost one of the stack of discs. Communication between this clearance and the inside of the sleeve is provided by radial holes through the sleeve. All the baffle discs are of heat-insulating material, and there is one such disc above the thick heat-conducting metal disc. Specification 621,042 is referred to.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3456053A GB770520A (en) | 1953-12-11 | 1953-12-11 | Improvements in or relating to structures comprising a motor and a pump driven thereby |
FR1117513D FR1117513A (en) | 1953-12-11 | 1954-12-11 | Improvements to pumping installations comprising a motor and a pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3456053A GB770520A (en) | 1953-12-11 | 1953-12-11 | Improvements in or relating to structures comprising a motor and a pump driven thereby |
Publications (1)
Publication Number | Publication Date |
---|---|
GB770520A true GB770520A (en) | 1957-03-20 |
Family
ID=10367151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3456053A Expired GB770520A (en) | 1953-12-11 | 1953-12-11 | Improvements in or relating to structures comprising a motor and a pump driven thereby |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1117513A (en) |
GB (1) | GB770520A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2431204A (en) * | 2005-10-14 | 2007-04-18 | Weatherford Lamb | Pump assembly |
CN101315080B (en) * | 2008-05-13 | 2011-09-07 | 深圳市雅尔典科技有限公司 | Full sealing type refrigerant fluid pump and its application in high-rise storied house refrigerating system |
CN106402016A (en) * | 2016-11-29 | 2017-02-15 | 合肥皖化电泵有限公司 | Auxiliary impeller structure of boiler water pump |
CN110594172A (en) * | 2019-08-05 | 2019-12-20 | 重庆和睦环保工程有限公司 | Centrifugal draught fan for boiler |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2994004A (en) * | 1958-02-19 | 1961-07-25 | Westinghouse Electric Corp | Sealed motor pump unit |
DE1254972B (en) * | 1958-03-24 | 1967-11-23 | Westinghouse Electric Corp | Heat barrier as a supporting connection piece between the motor housing and the pump housing of a motor-pump unit |
CN110173463B (en) * | 2019-05-16 | 2020-10-16 | 山东洪涨泵业有限公司 | One advances two and goes out purification formula pipeline pressure boost centrifugal pump |
CN114776586B (en) * | 2022-04-06 | 2023-12-26 | 黄山艾科装备科技有限公司 | A3NK-Z high-pressure machine tool cooling pump |
-
1953
- 1953-12-11 GB GB3456053A patent/GB770520A/en not_active Expired
-
1954
- 1954-12-11 FR FR1117513D patent/FR1117513A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2431204A (en) * | 2005-10-14 | 2007-04-18 | Weatherford Lamb | Pump assembly |
GB2431204B (en) * | 2005-10-14 | 2011-06-15 | Weatherford Lamb | Surface pump assembly |
US9366240B2 (en) | 2005-10-14 | 2016-06-14 | Oilfield Equipment Development Center Limited | Surface pump assembly |
US10280930B2 (en) | 2005-10-14 | 2019-05-07 | Oilfield Equipment Development Center Limited | Surface pump assembly |
CN101315080B (en) * | 2008-05-13 | 2011-09-07 | 深圳市雅尔典科技有限公司 | Full sealing type refrigerant fluid pump and its application in high-rise storied house refrigerating system |
CN106402016A (en) * | 2016-11-29 | 2017-02-15 | 合肥皖化电泵有限公司 | Auxiliary impeller structure of boiler water pump |
CN110594172A (en) * | 2019-08-05 | 2019-12-20 | 重庆和睦环保工程有限公司 | Centrifugal draught fan for boiler |
Also Published As
Publication number | Publication date |
---|---|
FR1117513A (en) | 1956-05-23 |
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