WO2014172801A1 - Dispositivo flotador estable para reducir la evaporación en lagunas abiertas - Google Patents
Dispositivo flotador estable para reducir la evaporación en lagunas abiertas Download PDFInfo
- Publication number
- WO2014172801A1 WO2014172801A1 PCT/CL2014/000019 CL2014000019W WO2014172801A1 WO 2014172801 A1 WO2014172801 A1 WO 2014172801A1 CL 2014000019 W CL2014000019 W CL 2014000019W WO 2014172801 A1 WO2014172801 A1 WO 2014172801A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cavities
- float device
- cover
- perimeter
- cylindrical body
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/34—Large containers having floating covers, e.g. floating roofs or blankets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H4/00—Swimming or splash baths or pools
- E04H4/06—Safety devices; Coverings for baths
- E04H4/08—Coverings consisting of rigid elements, e.g. coverings composed of separate or connected elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B2201/00—Devices, constructional details or methods of hydraulic engineering not otherwise provided for
Definitions
- the invention is focused on reducing evaporation in open lagoons.
- the present invention relates to a device useful in reducing evaporation in open lagoons.
- the present invention comprises a float device that complies with the restrictions required by large-scale mining, such that it reduces evaporation in open lagoons and resists climatic and atmospheric conditions in the large mining area.
- the evaporation control in this type of water collection is controlled, for example: by chemical covers consisting of pouring a chemical over the accumulated water, so that the chemical forms a liquid film on the water; floating covers consisting of floating synthetic films that completely cover the area of exposed water; overlapping decks consisting of floating synthetic decks that are supported by structures; or objects Floating consisting of a multiplicity of individual objects that are placed on the exposed area of the water, which float and are located next to each other.
- Document US2008000903 describes a modular floating cover for water storage, consisting of a plurality of modules, where each module includes a chamber formed between an upper surface and a lower surface and where the upper surface has openings to allow water to flow inside. of the chamber and openings to allow air to flow in and out of the chamber depending on the level of water within said chamber, such that each module floats independently.
- the module size is selected to ensure that the module is stable in strong wind conditions and does not accumulate batteries in the modules.
- the modules can be hexagonal or octagonal.
- WO2011035362 describes a module that is part of a modular floating cover, which includes an upper housing, a lower housing, a defined chamber between the upper and lower housing, a water inlet opening in the lower cover to allow the entry of water in the ballast chamber and an opening in the upper housing to allow air to flow in and out of the chamber and a plurality of discrete flotation cells to ensure flotation of the module, in which the upper housing and the lower housing , when the module is in an assembled state, they act to house each flotation cell in a predetermined position within the chamber.
- WO2010083560 discloses a module that is part of a floating water cover, which includes an upper housing, a lower housing and a chamber defined by the upper and lower housings, one or more openings for entering water into the lower housing for allow water to enter the chamber, one or more air openings in the upper housing to allow air to flow in and out of the chamber depending on the level of water inside the chamber, one or more first openings for fixing in the chamber lower housing, one or more second openings for fixing in the upper housing and a plurality of flotation cells to ensure that the module floats, each flotation cell is inserted through the pairs of first and second openings for fixing and in cooperation with portions of the wall of the first housing around each pair of first and second openings to retain the module in an assembled state.
- Document US2007275616 describes a floating module for water surface coverage, which comprises a tire and a dome-shaped surface cover that extends from the top of the tire and forms a ventilation hole, the tire and the cover is formed by air fillings, which correspond to cavities spaced around the tire, to provide buoyancy to the tire, the tire and the surface cover are configured so that one module nests inside another to form a stable stack.
- the present invention consists in having a floating device that is stable, low cost, deterrent for migratory birds, of resistant material, easy to transport, install and remove (for example when performing maintenance), and that allows free circulation of smaller vessels on the surface of the lagoon.
- a device assembly of the present invention is capable of forming a physical barrier that covers the surface of the lagoon, in order to reduce evaporation.
- the objective is to cover less than 100% of the surface of the lagoon and more than 90% of the surface of the lagoon.
- Another objective of the present invention is to ensure that each device floats at the same level previously determined, so that each device remains stable under adverse weather conditions, for example wind pressure, and does not sink due to the effect of adjacent devices. .
- another objective of the present invention is that the device adapts to the change of surface product of the waves, preventing the waves from passing over the device or bursting on the device, thus reducing evaporation.
- each device has a suction effect, in such a way to generate resistance to the action of the wind that tries to lift it and remove it from the surface of the lagoon, for example lifting it and causing it to fly away from the lagoon surface.
- the suction effect prevents the device from turning back, if one of its edges comes out of the water immediately as a result of the suction the device stabilizes again.
- the present invention corresponds to a float device comprising a cylindrical body having perimeter flotation cavities; a predetermined amount of air deposited and enclosed in each of said cavities; and covers to cover said cavities.
- Figure 1 is a bottom perspective view of the float device of the present invention.
- Figure 2 is a top perspective view of the float device of the present invention with some of its covers installed and with indication of some of its cavities.
- Figure 3 is a top plan view of the float device of the present invention.
- Figure 4 is a front view of the float device of the present invention.
- Figure 5 shows a cross section of the stack of two float devices of the present invention.
- Figure 6 shows an approach to the cross section of Figure 5.
- the present invention corresponds to a float device formed by a cylindrical body (6) having at least eight perimeter cavities (7); at least eight covers (8) to cover said cavities, and a predetermined amount of air deposited and enclosed in each of said cavities of the cylindrical body.
- the cylindrical body (6) is formed by a pyramidal cover (1) having a round outer edge; at least eight perimeter cavities (7) that surround the entire round edge of the pyramidal cover (1), where the cavities are open towards the upper part of the cylindrical body and have their lower part (2) closed and flat; a perpendicular side wall (3) located along the entire perimeter edge of the cylindrical body (6); a central hole (4); and at least six radial structural nerves, preferably at least eight radial structural nerves (5) located at the bottom of the pyramidal shell (1).
- the pyramidal shape of the cover (1) allows said cover to be more raised in the center.
- Each of the eight structural nerves are born from the contour of the central hole and extend radially until they meet the inner contour of the perimeter cavities. These structural nerves have a depth or height of approximately 3 cm and a length ranging from approximately 39 cm to approximately 63 cm, being 14 000019
- the side wall (PL) has a height that varies from approximately 10 cm to approximately 20 cm.
- the perimeter cavities are at least 8, more preferably 16 and each has a depth or height ranging from about 3 cm to about 5 cm, its preferred value being about 4 cm and a width, in the radial direction of the cylindrical body, which varies from about 6 cm to about 12 cm, its preferred value being about 7, even more preferably about 9 cm.
- the volume of air present in all perimeter cavities ranges from about 10,500 cm 3 to about 13,500 cm 3 , and preferably reaches about 11,500 cm 3 , even more preferably reaches about 12,000 cm 3 .
- the covers that go over the cavities are flat and are welded on said perimeter cavities so that the air is trapped inside the cavities and there are no leaks and preferably each cover covers at least two perimeter cavities.
- the covers are in the form of a section of the perimeter contour of the cylindrical body, its width, in the radial direction of the cylindrical body, from about 6 cm to about 12 cm, its preferred value being about 7, even more preferably about 9 cm ; each cover has an approximate thickness of 2 mm in its entire surface and has two lower ribs located, each one, at one end of the cover in the sense of the width of said cover and which allow to increase the thickness of the cover in the ends, at an approximate value of 2.5 mm.
- the air in each of the cavities allows the device to stay afloat. It is important that the amount of air in each of the cavities be equal to each other, in order to maintain the stability of the device on the surface of the lagoon.
- the volume of air depends on the weight of the device, since it has been determined that the thrust force to be performed by the set of perimeter cavities corresponds to a range from about 2.5 to 3.5 times the weight of the device. This allows us to conclude that the amount of air is determined, by the following relationship:
- Air volume (cm 3 ) device weight (Kg) * 3,000 (cm 3 / Kg) where the weight of the device is approximately from 3.5 to 4.5 kilograms.
- the pyramidal roof is formed by at least 8 triangular sections that rise pyramidal from the inner contour of the perimeter cavities, at an elevation of approximately 7 or from an imaginary horizontal plane, to the contour of the central hole, each of said triangular sections have their equal sides and each side has a length ranging from about 39 cm to about 63 cm, with its preferred value being about 53 cm, even more preferred about 49 cm.
- the float device must have an adequate suction force that allows said device to remain afloat and in position, for which the suction force of the device depends on the total diameter of the device (D) (figure 4), of the height of the side wall of the device (PL), the diameter of the central hole of the device (d) and the height of the flotation level of the device, defined as the height F in Figure 4, which corresponds to the section that it does not sink in the water, that is to the section of the device that is floating. Therefore, it has been established that these variables must comply with the following relationship so that the device has an adequate suction force:
- the diameter (D) of the float device has a value ranging from about 90 cm to about 150 cm, preferably being about 130 cm, even more preferably about 116 cm; and the height of the side wall of the float device (PL) ranges from about 10 cm to about 20 cm, with its preferred measurement being about 10 cm to 16 cm, even more preferably about 14 cm.
- the diameter of the central hole of the float device (d) ranges from about 0.47 cm to about 2.30 cm, more preferably from about 0.8 cm to 1.5 cm and preferably its diameter is about 1 cm; and the height of the flotation level (F) of the float device measures from about 1 cm to about 4 cm, its preferred value being about 3 cm, even more preferably about 2.6 cm.
- the device is manufactured by means of a plastic injection process in a chemically inert material, such as high density polyethylene (HDPE).
- a chemically inert material such as high density polyethylene (HDPE).
- HDPE high density polyethylene
- the outer shape of the devices allows them to be stackable with each other.
- the lower edge of the side wall of the device must be blunt (9), so that the device does not present a risk of cutting the various types of membranes that cover the walls and the bottom of the lagoons, such as the geotextile layer that protects that protects the side walls and the bottom of the lagoons. Also, as to have a lower undercutting effect against walls that are not covered with membranes.
- Figure 1 shows a perspective view of the bottom of the float device, where you can see the bottom of the pyramidal cover (1), the structural nerves (5) that give firmness to the float device, the central hole (4) , the smooth lower part of the perimeter cavities (2) and the side wall (3) of the device.
- Figure 2 shows a perspective view of the upper part of the float device, where you can see the upper part of the pyramidal cover (1), the central hole (4), the side wall (3) of the device, the cavities ( 7) perimetral and the covers (8) of said cavities.
- Figure 3 shows the top plan view of the float device where the perimeter cavities (7) can be seen.
- Figure 5 shows the cross-section of the stack of two float devices of the present invention, where it can be seen that the support of one device in the other occurs when the bottom of the cavities penmetral, of one device, bumps into the top of the perimeter cavity caps of the other device.
- Figure 6 shows an approach of Figure 5 and it can also be seen the blunt detail (9) of the lower edge of the side wall, which prevents cuts in the membranes, that is to say in geotextiles.
- the float devices are designed to facilitate their stacking on each other, when they are not being used.
- the devices can also be used in acid pools, since the preferred material of their manufacture is high density polyethylene.
- the float devices of the present invention when in use, allow the formation of a physical barrier that covers the surface of the lagoon, reducing evaporation. If the float devices are installed over the entire surface of the lagoon it is estimated that the physical barrier covers approximately 90% of the surface of the lagoon. It is present, that it is not advisable to cover 100% of the surface of the lagoon in order to avoid the stagnation of the liquid and the proliferation of microorganisms. In addition, the physical barrier must allow the movement of smaller vessels on the surface of the lagoon and that the devices are easily removable to allow the maintenance of the lagoons.
- the float devices of the present invention have the advantage of being stable, since the perimeter cavities possessed by the devices have air trapped and enclosed in a predetermined amount, that air being completely enclosed, since the perimeter cavities possess welded caps that prevent air loss.
- the structural technical characteristics of the present device allow the device to return to its initial position and maintain its flotation level in sudden movements, in addition to having several cavities it is possible to have a uniform distribution of air throughout the perimeter contour and prevents In the event of a possible structural failure of one of these cavities, all the air trapped and enclosed in the device is lost.
- a float device made of high density polyethylene for use in open lagoons, which has a total diameter of 116 cm; 16 cavities; eight structural nerves; a central hole of 1 cm in diameter; the height of its lateral wall being equal to 14 cm and the height of the flotation level equal to 2.65 cm.
- the weight of the manufactured float device is 4 Kg, so the total air volume, to be placed in all cavities, is equal to 12,000 cm 3 .
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2014256813A AU2014256813A1 (en) | 2013-04-23 | 2014-04-22 | Stable floating device for reducing evaporation in open pools |
CA2910326A CA2910326A1 (en) | 2013-04-23 | 2014-04-22 | A floating device stable under adverse weather conditions that diminishes in open lagoons, comprising a cylindrical body having at least 8 perimetral cavities, at least 8 covers to cover those cavities, and a predetermined quantity of air deposited and enclosed in each of the cavities of the cylindrical body |
EP14787559.5A EP2990355A4 (en) | 2013-04-23 | 2014-04-22 | STABLE FLOATING DEVICE FOR EVAPORATION REDUCTION IN OPEN POOLS |
US14/889,354 US20160200504A1 (en) | 2013-04-23 | 2015-04-22 | Stable floating device for reducing evaporation in open pools |
ZA2015/07634A ZA201507634B (en) | 2013-04-23 | 2015-10-13 | Stable floating device for reducing evaporation in open pools |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CL1112-2013 | 2013-04-23 | ||
CL2013001112A CL2013001112A1 (es) | 2013-04-23 | 2013-04-23 | Dispositivo flotador para lagunas abiertas que comprende un cuerpo cilindrico que posee al menos ocho cavidades perimetrales, al menos ocho tapas para tapar dichas cavidades y una cantidad de aire predeterminada depositada y encerrada en cada una de las cavidades del cuerpo cilindrico. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014172801A1 true WO2014172801A1 (es) | 2014-10-30 |
Family
ID=51790952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CL2014/000019 WO2014172801A1 (es) | 2013-04-23 | 2014-04-22 | Dispositivo flotador estable para reducir la evaporación en lagunas abiertas |
Country Status (8)
Country | Link |
---|---|
US (1) | US20160200504A1 (es) |
EP (1) | EP2990355A4 (es) |
AU (1) | AU2014256813A1 (es) |
CA (1) | CA2910326A1 (es) |
CL (1) | CL2013001112A1 (es) |
PE (1) | PE20151991A1 (es) |
WO (1) | WO2014172801A1 (es) |
ZA (1) | ZA201507634B (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016109214A (ja) * | 2014-12-08 | 2016-06-20 | 三菱重工メカトロシステムズ株式会社 | ガスホルダ及びガスホルダの改修方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4366806A (en) * | 1980-08-18 | 1983-01-04 | Engineering & Research Assocs., Inc. | Solar pool heater |
WO1998012392A1 (en) * | 1996-09-17 | 1998-03-26 | Rothor A/S | Device for preventing of evaporation of water |
WO2005090696A1 (en) * | 2004-03-18 | 2005-09-29 | Technological Resources Pty Limited | Water evaporation minimization |
US20080000903A1 (en) | 2004-07-28 | 2008-01-03 | Water Innovations Pty Ltd | Water Storage Evaporation Control |
AU2008255171A1 (en) * | 2007-12-10 | 2009-06-25 | David William Wright | Evaporation Reduction Module |
WO2010083560A1 (en) | 2009-01-21 | 2010-07-29 | Aqua Guardian Group Ltd | Water storage evaporation control |
WO2011035362A1 (en) | 2009-06-23 | 2011-03-31 | Aqua Guardian Group Ltd | Floating module for water storage evaporation control |
EP2354377A2 (de) * | 2010-02-02 | 2011-08-10 | Weener Plastik AG | Schwimmfähiger technischer Hohlkörper und Verfahren zu dessen Herstellung |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4875466A (en) * | 1987-09-16 | 1989-10-24 | Stephen Slonneger | Solar heating disc |
US7491265B1 (en) * | 2005-06-17 | 2009-02-17 | Johnson Dennis J | Cover for animal waste collection area |
US8029208B1 (en) * | 2008-08-11 | 2011-10-04 | Freeport-Mcmoran Copper & Gold Inc. | Apparatus and method for covering a surface of a body of water to inhibit evaporation |
US8683620B1 (en) * | 2009-04-29 | 2014-04-01 | John F. Krumme | Pool covers |
USD733322S1 (en) * | 2014-04-15 | 2015-06-30 | Robert Walczak | Hexagonally-shaped solar heating swimming pool cover |
-
2013
- 2013-04-23 CL CL2013001112A patent/CL2013001112A1/es unknown
-
2014
- 2014-04-22 EP EP14787559.5A patent/EP2990355A4/en not_active Withdrawn
- 2014-04-22 CA CA2910326A patent/CA2910326A1/en not_active Abandoned
- 2014-04-22 WO PCT/CL2014/000019 patent/WO2014172801A1/es active Application Filing
- 2014-04-22 PE PE2015002162A patent/PE20151991A1/es not_active Application Discontinuation
- 2014-04-22 AU AU2014256813A patent/AU2014256813A1/en not_active Abandoned
-
2015
- 2015-04-22 US US14/889,354 patent/US20160200504A1/en not_active Abandoned
- 2015-10-13 ZA ZA2015/07634A patent/ZA201507634B/en unknown
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4366806A (en) * | 1980-08-18 | 1983-01-04 | Engineering & Research Assocs., Inc. | Solar pool heater |
WO1998012392A1 (en) * | 1996-09-17 | 1998-03-26 | Rothor A/S | Device for preventing of evaporation of water |
WO2005090696A1 (en) * | 2004-03-18 | 2005-09-29 | Technological Resources Pty Limited | Water evaporation minimization |
US20070275616A1 (en) | 2004-03-18 | 2007-11-29 | Burston Ian A | Water Evaporation Minimization |
US20080000903A1 (en) | 2004-07-28 | 2008-01-03 | Water Innovations Pty Ltd | Water Storage Evaporation Control |
AU2008255171A1 (en) * | 2007-12-10 | 2009-06-25 | David William Wright | Evaporation Reduction Module |
WO2010083560A1 (en) | 2009-01-21 | 2010-07-29 | Aqua Guardian Group Ltd | Water storage evaporation control |
WO2011035362A1 (en) | 2009-06-23 | 2011-03-31 | Aqua Guardian Group Ltd | Floating module for water storage evaporation control |
EP2354377A2 (de) * | 2010-02-02 | 2011-08-10 | Weener Plastik AG | Schwimmfähiger technischer Hohlkörper und Verfahren zu dessen Herstellung |
Non-Patent Citations (1)
Title |
---|
See also references of EP2990355A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016109214A (ja) * | 2014-12-08 | 2016-06-20 | 三菱重工メカトロシステムズ株式会社 | ガスホルダ及びガスホルダの改修方法 |
Also Published As
Publication number | Publication date |
---|---|
CA2910326A1 (en) | 2014-10-30 |
US20160200504A1 (en) | 2016-07-14 |
EP2990355A4 (en) | 2016-12-07 |
PE20151991A1 (es) | 2016-01-31 |
ZA201507634B (en) | 2017-01-25 |
CL2013001112A1 (es) | 2013-10-11 |
AU2014256813A1 (en) | 2015-11-19 |
EP2990355A1 (en) | 2016-03-02 |
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