GB747359A - Centrifugal pump or compressor - Google Patents
Centrifugal pump or compressorInfo
- Publication number
- GB747359A GB747359A GB3173453A GB3173453A GB747359A GB 747359 A GB747359 A GB 747359A GB 3173453 A GB3173453 A GB 3173453A GB 3173453 A GB3173453 A GB 3173453A GB 747359 A GB747359 A GB 747359A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inner casing
- outer casing
- inlet
- casing
- outlet
- 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
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
-
- 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
- F04D1/063—Multi-stage pumps of the vertically split casing type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
747,359. Centrifugal pumps and compressors. WORTHINGTON CORPORATION Nov. 16, 1953, No. 31734/53. Class 110(1) A multi-stage centrifugal pump or compressor comprises an inner casing connected to a hollow cylindrical outer casing both casings being provided with communicating inlets and outlets, and the inner casing has continuous circumferential en largements which cooperate with circumferen tial sealing surfaces dis posed on the inner surface of the outer casing and on opposite sides of the outlet therein to form at least one seal and at least one sliding joint between the casings, the seal and sliding joint being of substantially equal diameters. The centrifugal pump shown in Figs. 1A and 1B comprises an inner casing 2 which is split on a horizontal plane and is inserted in a cylindrical outer casing 1 which is without any longitudinal joint. The outer casing 1 has an inlet 7 and an outlet 16 which communicate respectively with the eye 5 of the first stage impeller and with the outlet 15 of the inner casing 2. Cylindrical enlargements 19 and 20 on the inner casing 2 engage corresponding bores 21 and 22 in the outer casing 1. Labyrinth grooves 26 or other sealing means are provided.. Preferably, the diameter of bore 22 is, as shown, slightly greater than that of bore 21 to facilitate assembly. The inner casing 2 is flanged at one end for attachment by studs 24 to the outer casing 1, but at the other end is free to slide longitudinally to accommodate thermal expansion. To reduce the unbalanced longitudinal thrust taken by the studs 24, the annular space 18 enclosed between the enlargements 19, 20 is subjected to the discharge pressure through a gap 17 and a chamber 27 is subjected to the suction pressure at the inlet 7 through pipes 28. Figs. 8 and 1B combined show a modification in which the stuffing box 8<SP>1</SP> and the adjacent bearings (not shown) are carried by the inner casing 2<SP>1</SP>. The bearings are supported by a bracket 10<SP>1</SP>. Two cylindrical enlargements 11<SP>1</SP>, 12<SP>1</SP> are provied on either side of an inlet 4<SP>1</SP>. In a further embodiment, the first stage has a double-inlet, impeller.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3173453A GB747359A (en) | 1953-11-16 | 1953-11-16 | Centrifugal pump or compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3173453A GB747359A (en) | 1953-11-16 | 1953-11-16 | Centrifugal pump or compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
GB747359A true GB747359A (en) | 1956-04-04 |
Family
ID=10327590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3173453A Expired GB747359A (en) | 1953-11-16 | 1953-11-16 | Centrifugal pump or compressor |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB747359A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2410297A (en) * | 2004-01-21 | 2005-07-27 | Weir Pumps Ltd | Split casing for a multi-stage pump |
WO2019137804A1 (en) * | 2018-01-10 | 2019-07-18 | Siemens Aktiengesellschaft | Turbomachine inner housing |
-
1953
- 1953-11-16 GB GB3173453A patent/GB747359A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2410297A (en) * | 2004-01-21 | 2005-07-27 | Weir Pumps Ltd | Split casing for a multi-stage pump |
GB2410297B (en) * | 2004-01-21 | 2007-08-29 | Weir Pumps Ltd | Pump casing |
WO2019137804A1 (en) * | 2018-01-10 | 2019-07-18 | Siemens Aktiengesellschaft | Turbomachine inner housing |
CN111566352A (en) * | 2018-01-10 | 2020-08-21 | 西门子股份公司 | Inner casing of a turbomachine |
JP2021510189A (en) * | 2018-01-10 | 2021-04-15 | シーメンス アクティエンゲゼルシャフト | Turbomachinery inner housing |
US11732720B2 (en) | 2018-01-10 | 2023-08-22 | Siemens Energy Global GmbH & Co. KG | Turbomachine inner housing |
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