GB1332232A - Pipe elbow having internal fins - Google Patents
Pipe elbow having internal finsInfo
- Publication number
- GB1332232A GB1332232A GB88071A GB88071A GB1332232A GB 1332232 A GB1332232 A GB 1332232A GB 88071 A GB88071 A GB 88071A GB 88071 A GB88071 A GB 88071A GB 1332232 A GB1332232 A GB 1332232A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fins
- elbow
- turbulence
- jan
- degrees
- 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
- 230000003014 reinforcing effect Effects 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
- F15D1/04—Arrangements of guide vanes in pipe elbows or duct bends; Construction of pipe conduit elements for elbows with respect to flow, e.g. for reducing losses of flow
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supports For Pipes And Cables (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
1332232 Pipe elbow SOC GRENOBLOISE D'ETUDES ET D'APPLICATIONS HYDRAULIQUES 7 Jan 1971 [7 Jan 1970 22 Dec 1970] 880/71 Heading F2G A pipeline elbow has streamlined fins located at the curved section linking its inlet and outlet arms, all the fins lying perpendicular to a plane defined by the axes of the said arms. Preferably the fins are supported against vibration set up by turbulence at their downstream ends by plates lying in and/or parallel to the said plane. The shape of the fins is determined from the free streamline that would exist in the elbow under ideal flow conditions, the fins being sized used geometrical similarity. At the inlet end of the elbow the fins lie at an angle of 1À5 to 4 degrees to the axis of a straight pipe connected thereto and at the outlet end at an angle of no more than 2 degrees. The fins are spaced according to an optimisation of the opposing losses due to turbulence and obstruction by due to the fins. For a 90 degree elbow, between any two fins the spacing equals between 25% and 40% of the length of the chord of one of these fins. Alternatively the fins may be spaced equidistantly. The trailing end of the fins may have a truncated tip. Reinforcing members holding the fins within the elbow may be located just behind the leading edge of the fins and extend beyond the trailing ends.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7047619A FR2119286A6 (en) | 1970-12-22 | 1970-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1332232A true GB1332232A (en) | 1973-10-03 |
Family
ID=9066720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB88071A Expired GB1332232A (en) | 1970-12-22 | 1971-01-07 | Pipe elbow having internal fins |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2119286A6 (en) |
| GB (1) | GB1332232A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2970529A1 (en) * | 2011-01-18 | 2012-07-20 | Alstom Hydro France | CURVED PIPE BELONGING TO A HYDRAULIC MACHINE, DISTRIBUTION ASSEMBLY FOR PELTON TURBINE WHEEL AND HYDRAULIC MACHINE |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019103210A1 (en) * | 2019-02-08 | 2020-08-13 | Norma Germany Gmbh | Elbow piece for fluid-communicating connection of fluid lines of a vehicle |
-
1970
- 1970-12-22 FR FR7047619A patent/FR2119286A6/fr not_active Expired
-
1971
- 1971-01-07 GB GB88071A patent/GB1332232A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2970529A1 (en) * | 2011-01-18 | 2012-07-20 | Alstom Hydro France | CURVED PIPE BELONGING TO A HYDRAULIC MACHINE, DISTRIBUTION ASSEMBLY FOR PELTON TURBINE WHEEL AND HYDRAULIC MACHINE |
| WO2012098095A1 (en) * | 2011-01-18 | 2012-07-26 | Alstom Hydro France | Curved conduit pertaining to a hydraulic machine, distribution group for pelton turbine wheel, and hydraulic machine |
| CN103429886A (en) * | 2011-01-18 | 2013-12-04 | 阿尔斯通再生能源技术公司 | Curved conduit pertaining to hydraulic machine, distribution group for pelton turbine wheel, and hydraulic machine |
| RU2557835C2 (en) * | 2011-01-18 | 2015-07-27 | АЛЬСТОМ Риньюэбл Текнолоджиз | Curvilinear channel relating to hydraulic machine, distribution assembly for impeller of pelton turbine and hydraulic machine |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2119286A6 (en) | 1972-08-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |