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WO1998012392A1 - Dispositif servant a empecher l'evaporation d'eau - Google Patents

Dispositif servant a empecher l'evaporation d'eau Download PDF

Info

Publication number
WO1998012392A1
WO1998012392A1 PCT/NO1997/000246 NO9700246W WO9812392A1 WO 1998012392 A1 WO1998012392 A1 WO 1998012392A1 NO 9700246 W NO9700246 W NO 9700246W WO 9812392 A1 WO9812392 A1 WO 9812392A1
Authority
WO
WIPO (PCT)
Prior art keywords
floating body
water
floating
top cover
body according
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.)
Ceased
Application number
PCT/NO1997/000246
Other languages
English (en)
Inventor
Roar Thoresen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ROTHOR AS
Original Assignee
ROTHOR AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ROTHOR AS filed Critical ROTHOR AS
Priority to AU43236/97A priority Critical patent/AU4323697A/en
Publication of WO1998012392A1 publication Critical patent/WO1998012392A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/22—Safety features
    • B65D90/38—Means for reducing the vapour space or for reducing the formation of vapour within containers
    • B65D90/42—Means for reducing the vapour space or for reducing the formation of vapour within containers by use of particular materials for covering surface of liquids
    • 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
    • B65D88/36—Large containers having floating covers, e.g. floating roofs or blankets with relatively movable sections
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00—Arrangements or adaptations of tanks for water supply
    • 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

Definitions

  • the present invention relates to a device for reducing water evaporation. To be more precise, it relates to a system consisting of a number of identical units which are placed on the surface of the water so as to prevent the evaporation of valuable fresh water.
  • the device is especially intended to be used in countries with a hot climate where substantial evaporation is a particularly common phenomenon.
  • EP 123 743 describes a floating element, the purpose of which is to heat the underlying water. To this end, sun rays are allowed to pass through the translucent walls of the elements. The medium (water or air) inside the floating element is thus heated, and in turn heats the water below. The object of this patent is to raise the temperature of the water in order thereby to increase the productive capacity of algae, plankton, fish and so forth. This takes place in that the element creates different heat traps. Thus, EP 123 743 solves problems entirely different from those solved by the floating body of the present invention.
  • the intention of the present invention is to solve the problems of evaporation from water reservoirs.
  • the invention relates to a floating body which is made of a UV- resistant, sun-reflecting material.
  • the floating body is so designed that it is inexpensive to produce, simple to place on the water, allows precipitation to run between the elements and is unaffected by the forces of wind.
  • Figure 1 shows the hexagonal body
  • Figure 2 shows a section through the floating body
  • Figure 3 is a detailed drawing of the floating body with one or more structural sections in order to reinforce the cover;
  • Figure 4 shows an alternative embodiment having legs which meet at one point
  • Figure 5 shows an alternative embodiment having downwardly directed legs
  • Figure 6 shows the floating bodies laid out on a body of water, where the floating bodies form a honeycomb design and cover parts of the body of water.
  • Figure 1 shows a hexagonal floating body (10) as it rests on the water.
  • the body has six straight side faces (12) which are connected to each other in the lateral edges (13).
  • a top cover (15) is provided on the top of the side faces so that top and sides form a closed unit.
  • the top cover (15) has a gently convex arch form, so that precipitation runs off the cover more easily and over the sides into the water.
  • a hole (16) is made to allow air to flow more easily in and out of the floating body (10) when differences in pressure and temperature arise.
  • the entire floating body, i.e., top cover (15) and side faces (13) will preferably be moulded as a single unit, and is made of a UV-resistant, hard-wearing, robust plastic.
  • the area of the floating body may vary depending upon the external demands such as weather, wind and size of the water reservoir that is to be covered.
  • a practical and favourable size with a view to production may be from 1 to 1.5 sqm.
  • the lateral edges and side faces may be 0.25 m.
  • a suitable colour is selected which is either mixed into the plastic during moulding or is applied as paint to the finished product.
  • Figure 2 shows a section through the floating body (10), with a detailed section of a part of the side face (12).
  • a compartment (18) is formed, which, e.g., may be triangular as shown in the figure.
  • the compartment extends around the whole floating body and ensures uniform buoyancy.
  • This compartment (18) may be filled with air, gas or another floatable substance which provides buoyancy.
  • the figure shows the floating body in relation to the surface (17) of the water.
  • Figure 3 shows a detail of a corner of the floating body wherein a reinforcing structural section (19) has been affixed.
  • the floating body may be equipped with several reinforcing structural sections extending from the side faces (12) and secured around the hole (16) in the centre of the top cover (15).
  • Figure 4 shows an alternative embodiment wherein from the lower end of the lateral edges (13) there are connected long support legs which extend down into the water and meet at a vertex (21).
  • This embodiment with support legs may conceivably be used in areas where strong winds and bad weather prevail, where there is a danger that the floating bodies might be blown on top of one another.
  • These support legs (20) will ensure that in heavy waves the floating bodies will more easily fall into place side by side, and in this way prevent the bodies from lying on top of one another.
  • Figure 5 shows an alternative wherein short support legs (22) are used.
  • arched support legs are conceivable, as are support legs which run vertically down into the water. The function of all these support legs is to prevent the floating bodies from lying on top of one another.
  • An essential feature of the floating body of the invention is the compartment (18) filled with gas or another floatable substance providing buoyancy, whilst the lower part of the side faces (12) is submerged in the water. This results in the floating body (10) being difficult to move and displace owing to the water volume that the side faces draw with them in the event of displacement. This will provide a calm, stabilising, steady floating effect, where strong wind and waves would be needed to blow the floating bodies onto one another. In such areas exposed to the elements the floating bodies can, if necessary, be equipped with support legs (20, 22) as described above.
  • the invention comprises polygons in general.
  • the hexagon is considered to be the most suitable as the shape will be optimal with regards to positioning of the various floating bodies side by side on the surface of the water in a honeycomb pattern.
  • the selection of triangular or rectangular floating bodies will allow "openings" to form more easily in the cover.
  • heptagons and octagons provide a closed cover, but they may be suitable where it is desirable for a part of the surface of the water to remain uncovered. This may be relevant where, e.g., it is desirable to allow more sunlight to pass into the water, as a water reservoir covered with floating bodies will receive relatively little light.
  • fastening means (23) on the top cover (15) of the floating bodies (10).
  • These fastening means may, for example, be an eyebolt if the purpose is to facilitate the tying together of several floating bodies (10) with rope to enforce a limitation of the covering of the surface. In this way a channel or passage for boat traffic can be produced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Public Health (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Civil Engineering (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Revetment (AREA)

Abstract

Corps flottant servant à limiter l'évaporation de l'eau depuis un réservoir d'eau fraîche, caractérisé par le fait que ce corps possède une forme polygonale, les faces latérales du corps flottant possédant des parois verticales comportant des bords latéraux qui, quand le corps flotte, sont partiellement submergés par l'eau, le corps comprenant, de plus, un couvercle supérieur légèrement incurvé, des moyens de flottaison et un orifice situé dans le couvercle supérieur et permettant à l'air de circuler.
PCT/NO1997/000246 1996-09-17 1997-09-12 Dispositif servant a empecher l'evaporation d'eau Ceased WO1998012392A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU43236/97A AU4323697A (en) 1996-09-17 1997-09-12 Device for preventing of evaporation of water

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO963888 1996-09-17
NO963888A NO963888L (no) 1996-09-17 1996-09-17 Innretning for å begrense fordamping av vann

Publications (1)

Publication Number Publication Date
WO1998012392A1 true WO1998012392A1 (fr) 1998-03-26

Family

ID=19899841

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1997/000246 Ceased WO1998012392A1 (fr) 1996-09-17 1997-09-12 Dispositif servant a empecher l'evaporation d'eau

Country Status (3)

Country Link
AU (1) AU4323697A (fr)
NO (1) NO963888L (fr)
WO (1) WO1998012392A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005090696A1 (fr) * 2004-03-18 2005-09-29 Technological Resources Pty Limited Reduction de l'evaporation d'eau
WO2005091701A3 (fr) * 2004-03-23 2005-11-10 Pascual Antonio Jose Maestre Module flottant destine a couvrir des reservoirs d'eau a l'air libre
WO2006010204A1 (fr) 2004-07-28 2006-02-02 Water Innovations Pty Ltd Contrôle de l'évaporation dans un stockage des eaux
AU2005266839B2 (en) * 2004-07-28 2008-04-24 Aqua Guardian Group Limited Water storage evaporation control
WO2009095017A1 (fr) * 2008-01-31 2009-08-06 Hexa-Cover Aps Élément flottant et accouplement les uns aux autres d'une pluralité d'éléments flottants
AU2005224284B2 (en) * 2004-03-18 2010-11-25 Technological Resources Pty Limited Water evaporation minimization
WO2011109867A1 (fr) * 2010-03-09 2011-09-15 Philip Paul Jeffries Plateforme de contrôle de l'évaporation
WO2011161675A2 (fr) 2010-06-21 2011-12-29 Top-It-Up Ltd. Dispositif flottant et son procédé d'utilisation
WO2014172801A1 (fr) * 2013-04-23 2014-10-30 Compagnon Bernabe S.A. Dispositif flotteur stable pour réduire l'évaporation dans des lagunes ouvertes
CN104890828A (zh) * 2015-05-11 2015-09-09 珠江水利委员会珠江水利科学研究院 淡水存储装置
EP2738081A4 (fr) * 2011-07-26 2016-06-29 Samsung Heavy Ind Appareil anti-ballottement
US11801992B2 (en) 2019-01-03 2023-10-31 Inversiones Iraso Ii Ltda. Floating device for the constitution of a floating cover
US20250067013A1 (en) * 2023-08-27 2025-02-27 Christina Zhang Shade Dome for Reducing Evaporation of Open Body of Water

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517513A (en) * 1968-07-31 1970-06-30 Clarence Renshaw Fresh-water cistern
GB1547076A (en) * 1978-04-24 1979-06-06 Bear A M Reflective shield to prevent evaporation of water from reservoirs due to heat energy from the sun
US4270232A (en) * 1976-02-10 1981-06-02 Ballew Ray D Thermal pool cover
DE3530727A1 (de) * 1985-08-28 1987-03-05 Tmt Tech Management Transfer G Einrichtung zur minderung der wasserverdunstung in einem offenen wasserreservoir
US4735524A (en) * 1986-07-08 1988-04-05 Dunkers Karl R Method and plant for storing fresh water
US5074427A (en) * 1989-07-24 1991-12-24 Siemerink Bernardinus F A Apparatus for covering a basin for liquids
US5398349A (en) * 1993-10-20 1995-03-21 Haberler; Gerhard Pool cover

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517513A (en) * 1968-07-31 1970-06-30 Clarence Renshaw Fresh-water cistern
US4270232A (en) * 1976-02-10 1981-06-02 Ballew Ray D Thermal pool cover
GB1547076A (en) * 1978-04-24 1979-06-06 Bear A M Reflective shield to prevent evaporation of water from reservoirs due to heat energy from the sun
DE3530727A1 (de) * 1985-08-28 1987-03-05 Tmt Tech Management Transfer G Einrichtung zur minderung der wasserverdunstung in einem offenen wasserreservoir
US4735524A (en) * 1986-07-08 1988-04-05 Dunkers Karl R Method and plant for storing fresh water
US5074427A (en) * 1989-07-24 1991-12-24 Siemerink Bernardinus F A Apparatus for covering a basin for liquids
US5398349A (en) * 1993-10-20 1995-03-21 Haberler; Gerhard Pool cover

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7534154B2 (en) 2004-03-18 2009-05-19 Technological Resources Pty. Limited Water evaporation minimization
RU2372459C2 (ru) * 2004-03-18 2009-11-10 Текнолоджикал Ресорсиз Пти. Лимитед Плавучий модуль покрытия водной поверхности
AU2005224284B2 (en) * 2004-03-18 2010-11-25 Technological Resources Pty Limited Water evaporation minimization
WO2005090696A1 (fr) * 2004-03-18 2005-09-29 Technological Resources Pty Limited Reduction de l'evaporation d'eau
WO2005091701A3 (fr) * 2004-03-23 2005-11-10 Pascual Antonio Jose Maestre Module flottant destine a couvrir des reservoirs d'eau a l'air libre
US8393486B2 (en) 2004-07-28 2013-03-12 Aqua Guardian Group Ltd. Water storage evaporation control
WO2006010204A1 (fr) 2004-07-28 2006-02-02 Water Innovations Pty Ltd Contrôle de l'évaporation dans un stockage des eaux
AU2005266839B2 (en) * 2004-07-28 2008-04-24 Aqua Guardian Group Limited Water storage evaporation control
WO2009095017A1 (fr) * 2008-01-31 2009-08-06 Hexa-Cover Aps Élément flottant et accouplement les uns aux autres d'une pluralité d'éléments flottants
WO2011109867A1 (fr) * 2010-03-09 2011-09-15 Philip Paul Jeffries Plateforme de contrôle de l'évaporation
WO2011161675A2 (fr) 2010-06-21 2011-12-29 Top-It-Up Ltd. Dispositif flottant et son procédé d'utilisation
US9493922B2 (en) 2010-06-21 2016-11-15 Neotop Water Systems Ltd. Floating device and method of using the same
EP2738081A4 (fr) * 2011-07-26 2016-06-29 Samsung Heavy Ind Appareil anti-ballottement
US10131497B2 (en) 2011-07-26 2018-11-20 Samsung Heavy Ind. Co., Ltd. Apparatus for suppressing sloshing
WO2014172801A1 (fr) * 2013-04-23 2014-10-30 Compagnon Bernabe S.A. Dispositif flotteur stable pour réduire l'évaporation dans des lagunes ouvertes
CN104890828A (zh) * 2015-05-11 2015-09-09 珠江水利委员会珠江水利科学研究院 淡水存储装置
US11801992B2 (en) 2019-01-03 2023-10-31 Inversiones Iraso Ii Ltda. Floating device for the constitution of a floating cover
US20250067013A1 (en) * 2023-08-27 2025-02-27 Christina Zhang Shade Dome for Reducing Evaporation of Open Body of Water

Also Published As

Publication number Publication date
NO963888L (no) 1998-03-18
AU4323697A (en) 1998-04-14
NO963888D0 (no) 1996-09-17

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