WO1979000068A1 - Heat exchanger especially for cooling water at fresh water recovery by distillation of sea water - Google Patents
Heat exchanger especially for cooling water at fresh water recovery by distillation of sea water Download PDFInfo
- Publication number
- WO1979000068A1 WO1979000068A1 PCT/SE1978/000021 SE7800021W WO7900068A1 WO 1979000068 A1 WO1979000068 A1 WO 1979000068A1 SE 7800021 W SE7800021 W SE 7800021W WO 7900068 A1 WO7900068 A1 WO 7900068A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- flow
- flow elements
- heat exchanger
- elements
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/043—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
Definitions
- Heat exchanger especially for cooling water at fresh water recovery by distillation of sea water .
- This invention relates to a heat exchanger, which is intended especial- ly for use at the cooling of water in connection with the recovery of fresh water by distillation of sea water .
- SE-PS 387 927 which a. o. shows an evaporation chamber comprising a plurality of flow elements, which substantially are of plane parallel and vertical rela- tionship. According to the process disclosed in said patent specifica ⁇ tion, cooled fresh water is to be fed into the evaporation chamber .
- One object of the present invention is to bring about a heat exchanger with flow elements adapted for use at the cooling of fresh water prior to its feed into the evaporation chamber.
- a further object of the invention is to render it pos sible to recover desalted sea water at such a price that such recovery really is econo ⁇ mic for being applied to normal agricultural irrigation in areas having no fresh water resources of their own.
- the invention is based on the idea of being able with very low overpres sures to utilize the immense low temperature resources, which are available in sea water and easily can be transferred by pumping to places of demand.
- the small temperature gradients here involved and to be utilized require large surfaces . This requirement is not met by conventional heat ex ⁇ changer s .
- Conventional heat exchangers are made of metallic material in order to utilize the good heat transfer coefficient of these materials. Due to the aforesaid requirement of large surfaces at fresh water production, these heat exchanger s are unreasonably expensive .
- Another restric ⁇ ting factor is the requirement of corrosion resistance of the material used in the heat exchanger s in view of the sea water effect.
- Fig. 1 is a front view of a flow element comprised in a heat exchang according to the invention
- Fig. 2 is a lateral view of the flow element
- Fig. 3 is a front view of a clamping element comprised in the flow element
- Fig. 4 is ' a lateral view of said clamping element
- Fig. 5 shows an inlet (or outlet) in the flow element with laid-in clamping element
- Fig. 6 is a lateral view of the heat exchanger
- Fig. 7 is a view from above of the heat exchanger .
- the flow element according to Figs . 1 -2 consists of two thin foils 10 and 20, which in longitudinal direction of the flow element are so jointed by intermittent welding in several places in transver se direct ion, that the flow element is formed with a plurality of longitudinal gaps for water transport.
- three such gaps are indicated to the left and one to the right by the reference numerals 1 1 , 12 , 13, 14.
- the term intermittent welding is to be understood so that the joints welded are discontinuous .
- a welding joint is designated by 15, and a distance between two j oints is designated by 16. It is pos sible in principle to weld continuous joints, but with discontinuous joints a certain turbulence of the water flow is obtained.
- the flow element is connected at its upper end to two inlets 17, and at its lower end to tw outlets 18. Between said inlets 17 a clamping element 21 -22 is pro ⁇ vided, in such a manner, that the ends of the clamping element are secured in the inlets 17, and the foils 10, 20 are so laid about the clamping element, that the clamping element is located between the foils .
- the clamping element appears more clearly from Figs . 3 -4. It has the configuration of a T with an arc- shaped roof 21 and a straight remaining portion 22. The way how the clamping element is secured in an inlet 17 and, respectively, outlet 18 is more clearly apparent from Fig.
- the flow element is connected in the same manner to the two outlets 18 , and the foils 10, 20 are laid about a clamping ele ⁇ ment identical with said element 21 -22.
- the width and length of the flow element may be about 4 m and, respectively, 10 m, the distance between a weld joint and the neare st adjacent joint may be 3 to 4 cm, and the diameter of a flow gap at a system filled with water may be 2 to 3 cm.
- FIG. 6 A great number of flow elements of the kind des cribed above are com ⁇ prised in the heat exchanger according to Figs . 6-7.
- a container or basin 60 two main conduits 61 are provided, with four feed conduits 62, 63 , 64, 65 connected thereto.
- feed conduits 62, 63 , 64, 65 connected thereto.
- flow elements are connected, of which only a few are shown in the drawing, viz. the elements 66, 67, 68.
- the lower ends of the flow elements are connected to r eturn conduits 72, 73 , 74, 75 , which in their turn are connected to main conduits 71 , one of which appear s from Fig. 6.
- the heat exchanger further comprises inlets 76, 77 , 78 located below the flow elements, and outlets 86, 87, 88 located above the flow elements .
- the main conduits 61 are intended for relatively warm water fro an evaporation chamber
- the main conduits 71 are intended for cooled water to the evaporat ion chamber
- the inlets 76- 78 are intended for relatively cold sea water
- the outlets 86-88 ar e in-, tended for the dis char ge of heated sea water .
- the relatively warm fresh water (temper ⁇ ature on the inlet side, for example, x + 12 C) flowing downward will meet relatively cold sea water (temperature on the inlet side x C) flowing upward.
- the downwa d and, r e spectively, upward flows are facilitated thereby that the fre sh water is cooled and, respectively, the sea water is heated.
- the sea wate r temperature on the outlet side may be about x + 10 C, while the temperature of the cooled fresh water may be about x + 3 C .
- the pr es sures on both side s of the thin (0, 3 mm) plastic foils in the f low elements are almost equal and pure ⁇ ly static.
- the fre sh distillate water is given a low static over - pres sur e just sufficient to hold the channels of the elements stretched out against the ambient outer pres sure .
- the container or basin indicated in Fig. 6-7 may be designed station ⁇ ary in earth as a basin sunk into a shore strip, or as a floating steel or concrete container or as a container of plastic cloth anchored in the sea.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR7808671A BR7808671A (pt) | 1977-07-27 | 1978-07-17 | Trocador de calor |
DE19782856960 DE2856960A1 (de) | 1977-07-27 | 1978-07-17 | Heat exchanger especially for cooling water at fresh water recovery by distillation of sea water |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7708597 | 1977-07-27 | ||
SE7708597A SE408637B (sv) | 1977-07-27 | 1977-07-27 | Vermevexlare, avsedd speciellt for kylning av vatten i samband med utvinning av sotvatten genom destillation av havsvatten |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1979000068A1 true WO1979000068A1 (en) | 1979-02-22 |
Family
ID=20331913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1978/000021 WO1979000068A1 (en) | 1977-07-27 | 1978-07-17 | Heat exchanger especially for cooling water at fresh water recovery by distillation of sea water |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0007340A1 (sv) |
JP (1) | JPS5467256A (sv) |
DK (1) | DK332578A (sv) |
GB (1) | GB2021248B (sv) |
SE (1) | SE408637B (sv) |
WO (1) | WO1979000068A1 (sv) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997013112A1 (en) * | 1995-10-03 | 1997-04-10 | Hadwaco Ltd. Oy | Heat exchanger and a method for producing the same |
FR2771802A1 (fr) * | 1997-12-02 | 1999-06-04 | Dietrich & Cie De | Echangeur de chaleur metallique emaille et sensiblement plat |
WO2000079204A1 (en) * | 1999-06-21 | 2000-12-28 | Keeran Corporation N.V. | Rack bearing heat exchangers and steam dome to be arranged in connection with said rack |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58502100A (ja) * | 1981-11-20 | 1983-12-08 | リ−ロ−ナル インコ−ポレ−テツド | 無電解メッキのための非電導体の活性化用銅コロイド溶液 |
SE9703424L (sv) | 1997-09-23 | 1999-03-22 | Hvr Water Purification Ab | Apparat för utvinning av rent vatten ur råvatten |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3438432A (en) * | 1967-06-26 | 1969-04-15 | North American Rockwell | Plastic heat exchanger with anti-buoyancy means |
DE1517530A1 (de) * | 1966-06-13 | 1970-01-22 | Guery Dipl Ing A | Verfahren zur Gewinnung von Salz und Suesswasser aus Meerwasser und sonstigen natuerlich vorkommenden salzhaltigen Waessern |
GB1285155A (en) * | 1971-03-22 | 1972-08-09 | Albert Edward Merryfull | Improved plate heat exchanger |
DE2113389A1 (de) * | 1971-03-19 | 1972-09-21 | Joachim Gottschall | Druckkoerper |
GB1333316A (en) * | 1970-12-16 | 1973-10-10 | Kymin Oy Kymmene Ab | Process for manufacture of radiators |
SE387927B (sv) * | 1973-05-28 | 1976-09-20 | O Elmqvist | Anordning for utvinning av sotvatten genom destillation av havsvatten |
FR2308892A1 (fr) * | 1975-04-26 | 1976-11-19 | Unilever Nv | Element de transfert de chaleur, destine notamment a un collecteur d'energie solaire |
US4010733A (en) * | 1975-06-03 | 1977-03-08 | The United States Of America As Represented By The United States Energy Research And Development Administration | Structurally integrated steel solar collector |
-
1977
- 1977-07-27 SE SE7708597A patent/SE408637B/sv unknown
-
1978
- 1978-07-17 WO PCT/SE1978/000021 patent/WO1979000068A1/en unknown
- 1978-07-17 GB GB7910294A patent/GB2021248B/en not_active Expired
- 1978-07-26 DK DK332578A patent/DK332578A/da not_active Application Discontinuation
- 1978-07-27 JP JP9100978A patent/JPS5467256A/ja active Pending
-
1979
- 1979-02-27 EP EP78900061A patent/EP0007340A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1517530A1 (de) * | 1966-06-13 | 1970-01-22 | Guery Dipl Ing A | Verfahren zur Gewinnung von Salz und Suesswasser aus Meerwasser und sonstigen natuerlich vorkommenden salzhaltigen Waessern |
US3438432A (en) * | 1967-06-26 | 1969-04-15 | North American Rockwell | Plastic heat exchanger with anti-buoyancy means |
GB1333316A (en) * | 1970-12-16 | 1973-10-10 | Kymin Oy Kymmene Ab | Process for manufacture of radiators |
DE2113389A1 (de) * | 1971-03-19 | 1972-09-21 | Joachim Gottschall | Druckkoerper |
GB1285155A (en) * | 1971-03-22 | 1972-08-09 | Albert Edward Merryfull | Improved plate heat exchanger |
SE387927B (sv) * | 1973-05-28 | 1976-09-20 | O Elmqvist | Anordning for utvinning av sotvatten genom destillation av havsvatten |
FR2308892A1 (fr) * | 1975-04-26 | 1976-11-19 | Unilever Nv | Element de transfert de chaleur, destine notamment a un collecteur d'energie solaire |
US4010733A (en) * | 1975-06-03 | 1977-03-08 | The United States Of America As Represented By The United States Energy Research And Development Administration | Structurally integrated steel solar collector |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997013112A1 (en) * | 1995-10-03 | 1997-04-10 | Hadwaco Ltd. Oy | Heat exchanger and a method for producing the same |
AU700090B2 (en) * | 1995-10-03 | 1998-12-24 | Hadwaco Ltd Oy | Heat exchanger and a method for producing the same |
US5927383A (en) * | 1995-10-03 | 1999-07-27 | Hadwaco Ltd Oy | Heat exchanger and a method for producing the same |
FR2771802A1 (fr) * | 1997-12-02 | 1999-06-04 | Dietrich & Cie De | Echangeur de chaleur metallique emaille et sensiblement plat |
WO1999028691A1 (fr) * | 1997-12-02 | 1999-06-10 | De Dietrich & Cie | Echangeur de chaleur metallique emaille et sensiblement plat |
US6460614B1 (en) | 1997-12-02 | 2002-10-08 | De Dietrich Process Systems | Substantially flat enamelled metal heat exchanger |
WO2000079204A1 (en) * | 1999-06-21 | 2000-12-28 | Keeran Corporation N.V. | Rack bearing heat exchangers and steam dome to be arranged in connection with said rack |
Also Published As
Publication number | Publication date |
---|---|
SE7708597L (sv) | 1979-01-28 |
EP0007340A1 (en) | 1980-02-06 |
GB2021248B (en) | 1982-06-03 |
GB2021248A (en) | 1979-11-28 |
SE408637B (sv) | 1979-06-25 |
DK332578A (da) | 1979-01-28 |
JPS5467256A (en) | 1979-05-30 |
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