EP0147441A1 - Method and apparatus for generating a flow through a pipe below the surface of a body of water - Google Patents
Method and apparatus for generating a flow through a pipe below the surface of a body of waterInfo
- Publication number
- EP0147441A1 EP0147441A1 EP84902336A EP84902336A EP0147441A1 EP 0147441 A1 EP0147441 A1 EP 0147441A1 EP 84902336 A EP84902336 A EP 84902336A EP 84902336 A EP84902336 A EP 84902336A EP 0147441 A1 EP0147441 A1 EP 0147441A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe
- mouths
- valved
- section
- wave
- 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.)
- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D3/00—Flushing devices operated by pressure of the water supply system flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing
- E03D3/02—Self-closing flushing valves
- E03D3/04—Self-closing flushing valves with piston valve and pressure chamber for retarding the valve-closing movement
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/043—Artificial seaweed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Definitions
- Ohe invention relates to a method of inducing a wave-generated one-way di ⁇ rectional flow in a pipe below the surface of a body of water.
- the flow may be utilized for various purposes, e.g. beach stabilization or energy production.
- Siirple devices for rectifying a flow in a tidal area already exist.
- sewer outfalls may be supplied with flap valves allowing for flow of waste water from land toward the sea, but preventing sea water flow the opposite direction.
- the outflow may be limited to the periods in which the outlet of the sewer is below the wave trough.
- the present invention discloses a method and device supplied with several outlets, so that there is always an outlet beneath the wave trough, hereby inducing a constant outflow.
- Fig. 1 is a plan view of a coast in which the device is used for coastal protection.
- Fig. 2 is an alternative cross-section , I - I, of the pipe in Fig. 1,
- Fig. 3 is a schematic profile of a wave shown above a preferred e ⁇ iodiment of the invention.
- Fig. 4 is a plan view of the device in Fig. 3,
- Fig. 5 is a side view of a pipe with special valved mouths.
- Fig. 6 is a cross-section taken along the line U-II in Fig. 5.
- the device comprises a number of pipes 2 pointing out from the same basic pipe 1, Fig. 1.
- a suction for depositing the migrating beach material and thereby stabiliz ⁇ ing the coast may be attained through a pipe 1 parallel with or perpendicu ⁇ lar to the coast 6.
- Each pipe 2 is supplied with valve(s) 4 allowing for flow away from 1, but preventing flow the opposite direction.
- a pipe 1 for coast stabilization may for instance be a drain pipe or a rigid net enclosed by a layer of filter material, e.g. geotextile.
- a pipe 1 for energy production may be solid and enclose a turbine to be driven by the induced flow through the pipe.
- the turbine may drive a gene ⁇ rator.
- Fig. 2 The top of the triangle may be rounded.
- the pipe 7 is supplied with a number of valved mouths 3, 4 along its length, or possibly one continuous valved mouth.
- the hydrodynamic forces of the wave may be utilized.
- the mouths 3, Figs. 3-4 may be directed and formed so that the forward mo ⁇ tion of the water particles beneath the wave crest tend to close the valves under the crest, and so that the backward and downward motion of the water particles beneath the wave trough open up the valves under the trough.
- protruding mouths 3, 4 like them in Figs. 3-4 therefore should have a streamlined, diminishing shape in the wave propaga ⁇ tion direction 8.
- valves should be of a si ⁇ ple, robust design, so that their function is undisturbed by the sand in the water. Si ⁇ ple flap valves may be used.
- Avo ⁇ ntin ⁇ ous valved mouth may be made up of a drain pipe or a rigid net of plastic or metal forming the contour of the pipe, and a hose of zu ⁇ permeable elastic sheet material attached at intervals to the inner or outer side of the pipe.
- the sheet being supplied with at least one longitudinal slit be ⁇ tween the attached cross-sections, the slit will open up, when there is an overpressure on the outer-, respectively innerside of the pipe.
- the sheet is made of impermeable flexible or elastic material, e.g. rubber-coated textile, attached at intervals to the inner or outer side of the pipe or net.
- the diameter of the hose being so large, compared with the length of the periphery of the pipe, that at least one fold in the • • sheet is formed between the attached cross-sections, the fold is supplied with at least one longitudinal slit.
- slitted crosswise folds may be established.
- Figs. 5-6 show still another design, in which the net 8 forming the pipe is covered with an impermeable elastic sheet 9.
- the sheet has overlapping sec ⁇ tions 10 that can be raised to the position 11 by an overpressure in the pipe, so that the water can escape.
- the pipe 1 may be supplied with valves allowing for flow in the same direction 12 as allowed by the valves 4.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Procédé et appareil pour produire un écoulement à travers une section contenue, par exemple une conduite, située en dessous de la surface d'un corps d'eau. Les domaines d'application regroupent la protection des côtes et la production d'énergie. La section contenue est reliée à des orifices à soupape situés sous différents points du profil de vagues passantes, ce qui provoque l'induction d'un écoulement unidirectionnel en raison des différences de pression hydrostatique en ces points. Diverses configurations du système sont décrites, y compris une conduite perforée entourée d'un tuyau flexible, fixé à certains intervalles à la conduite et doté de fentes.A method and apparatus for producing a flow through a contained section, eg, a conduit, located below the surface of a body of water. The fields of application include coastal protection and energy production. The contained section is connected to valve orifices located under different points of the profile of passing waves, which causes the induction of a unidirectional flow due to the differences in hydrostatic pressure at these points. Various configurations of the system are described, including a perforated conduit surrounded by a flexible hose, attached at certain intervals to the conduit and provided with slots.
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8314960 | 1983-05-31 | ||
GB838314960A GB8314960D0 (en) | 1983-05-31 | 1983-05-31 | Depositing drift material on floor of body of water |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0147441A1 true EP0147441A1 (en) | 1985-07-10 |
Family
ID=10543610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84902336A Withdrawn EP0147441A1 (en) | 1983-05-31 | 1984-06-01 | Method and apparatus for generating a flow through a pipe below the surface of a body of water |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0147441A1 (en) |
AU (1) | AU3015984A (en) |
GB (1) | GB8314960D0 (en) |
WO (1) | WO1984004767A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU3626793A (en) * | 1992-02-18 | 1993-09-03 | Larsen, Niels Fjord | System for utilizing the wave motion in a body of water |
NL1033402C2 (en) * | 2007-02-15 | 2008-08-18 | Iersel Adrianus Josephus Maria | Method for protection against erosion of a coast or shore. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2886951A (en) * | 1952-04-12 | 1959-05-19 | Electricite De France | Apparatus for the utilization of the energy of waves |
ZA717868B (en) * | 1971-02-08 | 1972-08-30 | Fmc Corp | Attenuation of water waves and control and utilization of wave-induced water movements |
SU739175A1 (en) * | 1978-11-02 | 1980-06-05 | Московский Ордена Трудового Красного Знамени Инженерно-Строительный Институт Им. В.В.Куйбышева | Device for lining the bottom of water beds |
-
1983
- 1983-05-31 GB GB838314960A patent/GB8314960D0/en active Pending
-
1984
- 1984-06-01 AU AU30159/84A patent/AU3015984A/en not_active Abandoned
- 1984-06-01 EP EP84902336A patent/EP0147441A1/en not_active Withdrawn
- 1984-06-01 WO PCT/DK1984/000051 patent/WO1984004767A1/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO8404767A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1984004767A1 (en) | 1984-12-06 |
AU3015984A (en) | 1984-12-18 |
GB8314960D0 (en) | 1983-07-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): BE DE FR GB NL |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19860107 |