EP2733266B1 - Plateforme de transformation avec installation de refroidissement - Google Patents

Plateforme de transformation avec installation de refroidissement Download PDF

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Publication number
EP2733266B1
EP2733266B1 EP12192541.6A EP12192541A EP2733266B1 EP 2733266 B1 EP2733266 B1 EP 2733266B1 EP 12192541 A EP12192541 A EP 12192541A EP 2733266 B1 EP2733266 B1 EP 2733266B1
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EP
European Patent Office
Prior art keywords
coolant
hollow structural
cooling circuit
structural element
platform
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EP12192541.6A
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German (de)
English (en)
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EP2733266A1 (fr
Inventor
Jörg FINDEISEN
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Siemens AG
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Siemens AG
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Priority to NO12192541A priority Critical patent/NO2733266T3/no
Priority to DK12192541.6T priority patent/DK2733266T3/en
Priority to EP12192541.6A priority patent/EP2733266B1/fr
Publication of EP2733266A1 publication Critical patent/EP2733266A1/fr
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Publication of EP2733266B1 publication Critical patent/EP2733266B1/fr
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/42—Foundations for poles, masts or chimneys

Definitions

  • the invention relates to a transformer platform with at least one hollow structural element and with a cooling system for cooling at least one platform component of the transformer platform.
  • a substation platform is generally understood to mean an offshore structure including its offshore platform and platform foundations. These include, in the narrower sense, substations that are installed on an offshore platform, whereby the offshore platform and its platform foundation form part of the offshore substation. In a broader sense but also, for example, wind turbines are counted with the associated foundations for substations in the context of this application.
  • Substation platforms usually have platform foundations that are made of steel tubes.
  • various constructions are used, for example monopile foundations that have only a single pile, jacket foundations that have a steel truss structure, tripod foundations that have a tripod construction made of steel pipes, which has a main pile under water supports tripile foundations, which have three steel-tube piles anchored to the seabed, onto which a tripod construction is placed over water, or multi-pile systems.
  • a cooling system for a substation platform is used to cool platform components, such as transformers, the substation platform. Radiators are used to cool transformers. These are exposed to high levels of corrosive pollution in the offshore area. Especially for substations for high-voltage DC transmission comes due to the high dissipated total transmission Due to the high total losses to be dissipated, however, mainly water cooling is used. Often seawater is used for cooling. The use of seawater for cooling also causes a high corrosion load of the cooling system, in particular of pumps for the seawater.
  • seawater used for cooling causes contamination of heat transfer surfaces of heat exchangers, among others, by algae, shells and polyps (so-called fouling), thereby deteriorating heat transfer coefficients. Therefore, a prefiltration of the cooling water is often used in seawater cooling systems. The required facilities also have a need for maintenance.
  • Out DE 10324228 A1 is the protection of a water-based cooling system by means of high voltage known.
  • FR 2596144 A1 and DE 19810185 C1 Spiral heat exchangers are known. Improvements in the design of pipe coolers will be made in DE 19959467 B4 described.
  • WO 2006/069974 A1 From the WO 2006/069974 A1 is a deep-sea platform is known in which a heat exchange unit of an electrical component is arranged undersea and thus allows cooling of the electrical component.
  • the invention has for its object to provide an improved with regard to the cooling of platform components substation.
  • a transformer platform has at least one hollow structural element and a cooling system for cooling at least one platform component of the transformer platform.
  • the cooling system comprises a cooling circuit, in which a coolant is guided, and at least a portion of the cooling circuit is formed by a hollow structural element of the transformer platform, through which the coolant is guided.
  • a hollow structural element of a transformer platform is understood here a tube-like component of the offshore platform.
  • a hollow structural element at least partially or even completely forms the supporting structure of the platform foundation of the offshore platform.
  • the cooling system thus uses any existing hollow structural elements of the substation as a heat exchanger of the cooling circuit of the cooling system.
  • the outer surfaces of the coolant-carrying hollow structural elements can thereby be used for cooling the coolant, in particular if these outer surfaces are arranged in the water surrounding the transfer platform (that is, in the seawater). As a result, the size of the cooling system and the platform costs are advantageously reduced.
  • An embodiment of the invention provides an intermediate cooling circuit, which is thermally arranged between the cooling circuit and at least one platform component of the transformer platform and is thermally coupled to the cooling circuit via a heat exchanger.
  • an intermediate cooling circuit (as a primary cooling circuit) is particularly advantageous for cooling platform components whose cooling requires a special and relatively expensive coolant, such as an insulating liquid for cooling transformers.
  • a special and relatively expensive coolant such as an insulating liquid for cooling transformers.
  • the use of the expensive coolant can be advantageously limited to the intermediate cooling circuit, while in the cooling circuit thermally coupled thereto and functioning as a secondary cooling circuit, which is generally larger than the intermediate cooling circuit, a cheaper refrigerant can be used.
  • a further embodiment of the invention provides a plurality of interconnected hollow structural elements of the substation, which together form a portion of the cooling circuit.
  • the volume and the usable for cooling the coolant outer surface of the cooler formed by hollow structure elements of the transformer platform are advantageously increased.
  • a further embodiment of the invention provides that at least one hollow structural element, which forms a portion of the cooling circuit, is arranged at least partially in the water surrounding the transformer platform.
  • the water surrounding the substation can be advantageously used for cooling the coolant in the cooling circuit of the cooling system.
  • a further embodiment of the invention provides at least one thermoelectric generator which is arranged on a hollow structural element forming a cooling circuit section below the water level of the water surrounding the transformer platform for utilizing a temperature difference between temperatures of this water and the coolant.
  • Hollow structure elements of the platform foundation are particularly advantageous as cooling elements and / or coolant reservoir, since they are usually arranged below the water level of the surrounding water surrounding the substation and have large outer surfaces for cooling the coolant in the cooling circuit of the cooling system.
  • a further embodiment of the invention provides that at least one inner tube is arranged in the interior of at least one hollow structural element, which forms a portion of the cooling circuit, so that between the hollow structural element and the inner tube creates an area for guiding coolant.
  • the required amount of coolant in the cooling circuit of the cooling system can be advantageously reduced because the interior of the inner tube does not need to be filled with coolant, or the inner tube can be advantageously used to separate sections of the cooling circuit outside and inside the inner tube in which coolant flows in different directions.
  • a further embodiment of this embodiment of the invention provides to connect the interior of at least one inner tube with the environment of the inner tube containing hollow structural element, so that the Umspanno surrounding water can flow into the interior of the inner tube and out of the interior of the inner tube.
  • the interior of at least one inner tube can be filled with seawater, so that not only seawater surrounding the inner tube surrounding hollow structural element, but also seawater in the interior of the inner tube for cooling of coolant in the cooling circuit of the cooling system can be advantageously used.
  • an opening can be provided in at least one inner tube to the region between at least one inner tube and the hollow structure element containing the inner tube.
  • coolant can be directed into the interior of the inner tube, so that the interior and the exterior of the inner tube can be used to guide coolant in opposite directions.
  • advantageously stiffening elements which increase the stability of the substation, can also be used for cooling the coolant in the cooling circuit of the cooling system.
  • a further embodiment of the invention provides at least one flow guide device for the flow of the coolant in the hollow structural element, arranged in a hollow structural element forming a cooling circuit section.
  • Such Strömungsleitvoriquesen the flow of the coolant in the cooling circuit of the cooling system can be advantageously conducted such that the cooling of the coolant is optimized by the coolant is passed to particularly effective cooling areas of the cooling circuit.
  • the coolant of the cooling circuit contains fresh water, glysantin and / or corrosion inhibitors.
  • Freshwater has the advantage of being less corrosive to salt water, which is often used as a refrigerant in conventional substation cooling systems. The use of fresh water therefore reduces the corrosion load of the cooling system and in particular their pumps and thereby also reduces the cost of maintenance and care of the cooling system.
  • Additives to the coolant, such as glysantin or corrosion inhibitors, are advantageously suitable for reducing corrosion, reducing soiling and for frost protection of sections of the cooling circuit extending above the seawater level.
  • a particularly preferred embodiment of the invention provides that the cooling circuit is hermetically sealed relative to the surroundings of the transformer platform.
  • a further embodiment provides at least one compensation chamber containing a gas for receiving the thermally induced volume fluctuations of the coolant, thus the volume fluctuations of the coolant are absorbed by compression of the gas.
  • this compensation space is also arranged in a hollow structure of the platform foundation.
  • the size of the compensation chamber and its filling with gas is preferably dimensioned such that the at a maximum expected temperature of the coolant by compression of the gas adjusting differential pressure to the environment does not exceed 0.5 bar.
  • the filling gas of the expansion chamber for the volume fluctuations of the coolant nitrogen is preferably provided.
  • FIG. 1 schematically shows a first embodiment of a transformer platform 1 with a cooling system 3 for cooling a platform component 11.
  • the platform component 11 is for example a transformer.
  • the substation 1 is located in the water 7 in the open sea in front of a coast.
  • the platform foundation of the transformer platform 1 comprises a plurality of vertically extending legs forming hollow structural elements 2, which are designed as steel pipes and form foundation legs of the transformer platform 1, which protrude from the water 7 and carry a platform head 10 of the transformer platform 1, on which the platform component 11 is located.
  • These foundation legs are interconnected by below the water level 71 of surrounding the substation 1 surrounding water 7 connecting hollow structure elements 23, 24, wherein a first connecting hollow structure element 24 extends obliquely to the foundation legs and the second connecting hollow structure element 23 orthogonal to the foundation legs below the first connecting hollow structure element 24 runs.
  • the cooling system 3 comprises a primary cooling circuit designed as an intermediate cooling circuit 3.1 and designed as a secondary cooling circuit cooling circuit 3.2, which are thermally coupled via a heat exchanger 31.
  • the intermediate cooling circuit 3.1 is thermally coupled directly to the platform component 11. It comprises first pipes 35 and a first pump 33.
  • the cooling circuit 3.2 comprises a second pipe 36, a second pump 34 and the legs forming hollow structural elements 2 and the connecting hollow structural elements 23, 24.
  • a coolant 39 is pumped through the cooling circuit 3.2.
  • fresh water is preferably used in the cooling circuit 3.2.
  • the fresh water additives such as glysantin and / or corrosion inhibitors, are added.
  • the legs forming hollow structural elements 2 and the connecting hollow structure elements 23, 24 thus lead coolant 39 and are integrated into the cooling circuit 3.2. Since they have large outer surfaces lying below the water level 71 of the surrounding substation 7, it is advantageously possible to efficiently cool coolant 39 in the hollow structural elements 2 forming connecting pillars and connecting hollow structural elements 23, 24.
  • the legs forming hollow structural elements 2 are filled with coolant 39 such that a coolant level 73 of the coolant 39 in these areas 21 above the water level 71 of the Umspannnch 1 surrounding water 7.
  • an inner tube 22 is arranged so that a region 21 for guiding coolant 39 is formed around the inner tube 22 around between this hollow structural element 2 and the inner tube 22.
  • the inner tube 22 is connected to the second connecting hollow structure element 23 and has an opening 28 this, through which coolant 39 can flow from the second connecting hollow structural element 23 in the inner tube 22.
  • the coolant 39 is pumped by the second pump 34 through the cooling circuit 3.2, so that it as indicated by the arrows in FIG. 1 indicated: flows from the heat exchanger 31, the coolant 39 via a second pipe 36 in the inner tube 22 surrounding area 21 in the first of the legs forming hollow structural elements 2; from there, the coolant 39 flows down the inner tube 22 and into the first connecting hollow structure element 24; via the first connecting hollow structural element 24, it flows into the second hollow structural elements 2 forming the pillars and from there into the second connecting hollow structural element 23; From the second connecting hollow structural element 23, the coolant 39 then flows through the opening 28 into the inner tube 22 and from there finally via a projecting into the inner tube 22 second pipe 36 back to the heat exchanger 31st
  • each first stiffening elements 41 are arranged, which are formed as the outer surfaces of these hollow structural elements 2 increasing cooling fins for cooling of coolant 39.
  • FIG. 2 schematically shows a second embodiment of a substation 1 with a cooling system 3 for cooling a platform component 11.
  • the platform component 11 is in this embodiment, for example, a transformer.
  • the substation 1 is located in the water 7 in the open sea in front of a coast and the platform foundation of the substation 1 comprises a plurality of legs forming hollow structure elements 2, which are designed as steel pipes and form foundation legs of the substation 1. These foundation legs are through below the A first connecting hollow structural element 24 extends obliquely to the foundation legs and the second connecting hollow structural element 23 extends orthogonal to the foundation legs below the first connecting hollow structural element 24.
  • the cooling system 3 comprises an intermediate cooling circuit 3.1 designed as a primary cooling circuit and a cooling circuit 3.2 designed as a secondary circuit, which are thermally coupled via a heat exchanger 31, wherein the intermediate cooling circuit 3.1 is thermally coupled directly to the platform component 11 and designed analogously to the first exemplary embodiment ,
  • the cooling circuit 3.2 comprises a second pipe 36, a second pump 34 and the legs forming hollow structural elements 2 and the first connecting hollow structural element 24. By means of the second pump 34, a coolant 39 is pumped through the cooling circuit 3.2.
  • an inner tube 22 is arranged in each of the legs forming hollow structural element 2, so that a region 21 for guiding coolant 39 is formed around the inner tube 22 between this hollow structural element 2 and the inner tube 22.
  • the two regions 21 of the legs forming hollow structure elements 2 are connected to each other by the first connecting hollow structure element 24.
  • the inner tube 22 of a first of the legs forming hollow structural element 2 no coolant 39 of the cooling circuit 3.2 but water 7 of the umspannz 1 surrounding sea out.
  • the interior of this inner tube 22 is connected via connecting channels 47, 48 with the environment of the hollow structure element 2 containing the inner tube 22, so that the Transformer 1 surrounding water 7 through first connection channels 47 into the interior of the inner tube 22 into and through second connection channels 48 from the interior of the inner tube 22 can flow out.
  • the second connection channels 48 are arranged above the first connection channels 47, so that through the first connection channels 47 into the inner tube 2 occurred and heated by the absorption of heat from the coolant 39 water 7 within the inner tube 22 rises and through the second connection channels 48 can escape the inner tube 22.
  • the inner tube 22 of the first of the legs forming hollow structural element 2 advantageously increases the surface of this hollow structural element 2, which is surrounded by water 7 of the sea, and thus improves the cooling of the coolant 39 in this hollow structural element 2.
  • the inner tube 22 in the second of the legs forming the hollow structural elements 2 is formed as the inner tube 22 in the first of the legs forming hollow structural elements 2 of the first embodiment, i. it has at least one opening 28 to the coolant-filled region 21 between it and the second of the legs forming hollow structural elements 2, so that coolant 39 can flow from this area in this inner tube 22.
  • the surrounding the inner tubes 22 areas 21 inside the legs forming hollow structural elements 2 and the inner tube 22 of the second of the legs forming hollow structural element 2 are filled with coolant 39 such that the coolant level 73 of the coolant 39 above the water level 71 of the substation 1 surrounding water 7 is located.
  • the coolant 39 is pumped by the second pump 34 through the circuit 3.2, so that the example by the arrows in FIG. 2 indicated coolant flow sets: from the heat exchanger 31, the coolant 39 flows over a second pipe 36 in the region 21 in the first of the legs forming hollow structural elements 2, which surrounds the arranged there inner tube 22; from there, the coolant 39 flows down the inner tube 22 and into the first connecting hollow structure element 24; via the first connecting hollow structural element 24, it flows into the region 21 in the second hollow structural elements 2 forming the legs, which surrounds the inner tube 22 arranged there, and from there through the at least one opening 28 into this inner tube 22; From this inner tube 22, the coolant 39 finally flows via a projecting into this inner tube 22 second pipe 36 back to the heat exchanger 31st
  • FIGS. 3 to 5 show embodiments of coolant-carrying legs forming hollow structural elements 2 with different stiffening elements 41, 42, 43, which both improve the stability of these hollow structural elements 2 and the cooling of the coolant 39 serve in these hollow structural elements 2.
  • the stiffening elements 41, 42, 43 are also preferably designed such that they serve as Strömungsleitvorraumen.
  • FIG. 3 shows a structural leg forming hollow structural element 2, on the outer wall formed as a cooling ribs outer first stiffening elements 41 are arranged, and on the inner wall coolant-carrying second stiffening elements 43, each having at least one (not shown coolant channel) for guiding coolant 39 and extend vertically, are arranged.
  • FIG. 4 shows a structural leg forming hollow structural element 2, on the outer wall of four vertically extending coolant-carrying second stiffening elements 43 are arranged, and on the inner wall formed as a cooling ribs inner first stiffening elements 42 are arranged.
  • the middle in FIG. 4 shown second stiffening element 43 is therefore also on the outer wall of a pillar forming hollow structure element 2 and is shown here, to indicate that the four second stiffening elements 43 along the circumference of a cross section of the outer wall of this hollow structural element 2 are offset by 90 degrees from each other.
  • FIG. 5 shows a pillar forming hollow structural element 2, on the inner wall horizontally extending coolant-carrying second stiffening elements 43 are arranged one above the other.
  • FIG. 6 schematically shows a third embodiment of a substation 1 with a cooling system 3 for cooling a platform component 11.
  • the platform component 11 is in this embodiment, for example, a transformer.
  • the platform foundation of this exemplary embodiment is formed like a truss of elongate hollow structure elements 27.1 forming a truss structure and in each case a plurality of hollow structure elements 27.2 which form connecting node elements forming these hollow structure elements 27.1.
  • the node elements forming hollow structure elements 27.2 may be formed, for example, as a cylindrical, spherical or multi-surface body and are welded to the timber structure forming hollow structure elements 27.1, which connect them each, usually.
  • the node elements forming hollow structure elements 27.2 are advantageously designed as cast nodes.
  • the cooling system 3 is analogous to those in the FIGS. 1 and 2 formed embodiments and includes an intermediate cooling circuit 3.1 and a thereto via a heat exchanger 31 thermally coupled cooling circuit 3.2.
  • the cooling circuit 3.2 comprises under the water level 71 of the surrounding substation 1 surrounding water 7 extending hollow structural elements 27.1, 27.2 of the platform foundation through which a coolant 39 of the cooling circuit 3.2 is pumped by means of a second pump 34.
  • the coolant 39 is by means of a second pipe 36 of the cooling circuit 3.2 into the platform foundation and out of it.
  • the interior spaces of the hollow structure elements 27.1, 27.2 included in the cooling circuit 3.2 are connected to one another in such a way that a circulation of the coolant 39 within the platform foundation is promoted. Due to the cooling of the walls of the hollow structure elements 27.1, 27.2 resulting increase in the density of the coolant 39, it comes to a self-propelled coolant flow.
  • flow guide devices are provided in node elements forming hollow structure elements 27.2, which enable a directed coolant flow between the hollow structure elements 27.1 forming the framework structure.
  • hollow structural elements 27.2 formed in this way are described below FIGS. 16 to 21 shown.
  • the return of the coolant 39 preferably takes place from the platform foundation in such a way that the removal takes place in the lowest part of the platform foundation.
  • the coolant 39 is returned to the heat exchanger 31 via a second pipe 36 which is disposed within a vertically extending hollow structural element 27.1.
  • the cooling effect of the platform foundation can also in this embodiment by (in FIG. 6 not shown) formed as a cooling ribs inner or outer first stiffening elements 41, 42 are increased to the timber structure forming hollow structure elements 27.1, designed in such a way be that they contribute to the mechanical strength of the platform foundation.
  • 27.2 further Strömungsleitvorairesen or turbulators are arranged to achieve a turbulent flow within the hollow structure elements.
  • FIG. 7 schematically shows a fourth embodiment of a substation 1 with a cooling system 3 for cooling a platform component 11.
  • the platform component 11 is also in this embodiment, for example, a transformer.
  • the tripod foundation comprises three formed as foundation legs leg forming hollow structure elements 2, by means of which the substation 1 is placed on a water bottom 8, forming a support structure hollow structure element 25, the upper end of which protrudes from the substation 1 surrounding water 7 and the platform head 10 of Transformer platform 1 carries, as well as for each of the legs forming hollow structural element 2, two connecting hollow structural elements 23, 24, which connect the respective hollow structural element 2 with the carrier structure forming hollow structural element 25.
  • a first connecting hollow structure element 24 extends from the hollow structure element forming the support structure obliquely downward to the hollow structure element 2 forming a pillar and the second connecting hollow structure element 23 runs below the first connecting hollow structure element 24 almost parallel to the water bottom 8.
  • the connecting hollow structure elements 23, 24 each have openings 28 to the hollow structure forming the support structure 25 and the respective structural leg forming hollow structural element 2, so that the interiors of all the hollow structural elements 2, 23, 24, 25 form a coherent cavity which is hermetically sealed against the environment of the substation 1.
  • the cooling system 3 comprises an intermediate cooling circuit 3.1 and a cooling circuit 3.2 thermally coupled thereto via a heat exchanger 31, which in this embodiment is formed solely by the hollow structure elements 2, 23, 24, 25.
  • a heat exchanger 31 which in this embodiment is formed solely by the hollow structure elements 2, 23, 24, 25.
  • the cavity formed by the interior spaces of the hollow structure elements 2, 23, 24, 25 is filled with the coolant 39 of the cooling circuit 3.2 and the heat exchanger 31 is arranged in the coolant 39 within the interior of the hollow structure element 25 forming the support structure.
  • the direction of the coolant flow in the cooling circuit 3.2 is in FIG. 7 indicated by arrows.
  • the coolant 39 is heated by the heat exchanger 31 and rises within the hollow structure element 25 forming the support structure.
  • the coolant 39 is cooled and due to its increasing density through the cooling through the connecting hollow structural elements 24 in the interiors of the legs forming hollow structural elements 2 and flows from there through the interiors of the second connecting Hollow structure elements 23 back into the interior of the carrier structure forming hollow structural element 25 to the heat exchanger 31. So it forms within the platform foundation of a natural coolant flow, if necessary by a (in FIG. 7 not shown) second pump 34 can be amplified.
  • parts of the hollow structure elements 2, 23, 24, 25 can be made multi-walled and, for example, provided with an inner tube 22.
  • hollow structural elements 2, 23, 24, 25 can be provided with inner or outer first stiffening elements 41, 42 designed as cooling ribs.
  • the platform foundation of the transformer platform 1 is filled with the coolant 39 such that a coolant level 73 of the coolant 39 above the water level 71st of the substation 1 surrounding water 7 is located.
  • the filling is further selected so that above the coolant level 73, a coolant-free compensation chamber 29 remains to compensate for temperature-induced volume changes of the coolant 39 in the cooling circuit 3.2.
  • the compensation chamber 29 is filled with a gas, for example nitrogen, in such a way that the differential pressure to the environment in the compensation chamber 29 which is set at a maximum expected temperature of the coolant 39 remains less than 0.5 bar.
  • the cooling circuit 3.2 including the hollow structure elements included in the cooling circuit, is advantageously hermetically sealed off from the surroundings of the transformer platform 1.
  • FIGS. 8 to 13 show schematically each an embodiment of a pillar forming hollow structural element 2 with the coolant 39 leading tubular coolant channels 51 in a cross-sectional view.
  • Such designs are not only suitable for legs forming hollow structure elements 2, but also for other of the in the FIGS. 1 . 2 . 6 . 7 shown hollow structure elements 23, 24, 25, 27.1, 27.2.
  • FIGS. 8, 12 and 13 each show a coolant channel 51 arranged on the outside of a hollow structure element 2 forming a pillar, wherein the coolant channels 51 of the in FIG. 8 illustrated embodiment have U-shaped cross-sectional contours, while in the FIGS. 12 and 13 illustrated embodiments have circular cross-sectional contours.
  • FIGS. 9 to 11 show in each case inside of a supporting leg forming hollow structural element 2 arranged coolant channels 51, wherein the coolant channels 51 of the in FIG. 9 illustrated embodiment have U-shaped cross-sectional contours, while in the FIGS. 10 and 11 illustrated embodiments have circular cross-sectional contours.
  • the coolant channels 51 are in the FIGS. 8 to 10 and 13 embodiments shown arranged directly on the pillar forming a hollow structural element 2, while the coolant channels 51 of the in the FIGS. 11 and 12 represented embodiments via webs 52 are connected to the pillar forming a hollow structural element 2.
  • FIG. 14 shows in a longitudinal sectional view of a detail of a pillar forming hollow structure element 2, on the inside coolant channels 51 are arranged with coolant inlet channels 54.1 for supplying coolant 39 and coolant outlet channels 54.2 for discharging coolant 39.
  • This hollow structural element 2 further has water inlet openings 53.1 below the coolant channels 51 and water outlet openings 53.2 above the coolant channels 51, through which the surrounding platform 7 can flow into the interior of this hollow structural element 2 or out of the interior of this hollow structural element 2.
  • the arrows indicate the directions in each of which coolant 39 and water 7 flows.
  • FIG. 15 schematically shows two hollow structural elements 2.1, 2.2, which are connected by means of a so-called grout 9.
  • the hollow structural elements 2.1, 2.2 are mounted, wherein one end of a first hollow structural element 2.1 is introduced into the second hollow structural element 2.2, and a gap between the hollow structural elements 2.1, 2.2 is filled with a grout material 91, for example a high-strength concrete or mortar.
  • a grout material 91 for example a high-strength concrete or mortar.
  • the grout material 91 is introduced via a material inlet connection 92 in the second hollow structural element 2.2.
  • the second hollow-structure element 2.2 has an outlet opening 93 for venting and / or discharging a medium displaced during introduction of the grout material 91.
  • An embodiment of the invention provides that coolant-carrying hollow structural elements 2.1, 2.2, which are connected by means of such Groutthetic 9, are connected to each other via at least one coolant connection element 94, through which coolant 39 is conductive.
  • one of the hollow structural elements 2.1, 2.2 is provided with the coolant connection element 94, while in the other hollow structural element 2.1, 2.2 a receiving device 95, for example a corresponding opening, for receiving the coolant connection element 94 is provided, so that the interior of the coolant connection element 94 during the filling process of the Grout material 91 remains free from grout material 91.
  • FIGS. 16 to 21 show schematically in a sectional view each a node element forming hollow structural element 27.2 a as in FIG. 6 executed substation 1.
  • the node elements forming hollow structure elements 27.2 each have a flow guide for guiding the coolant 39 flowing through them.
  • knot elements forming hollow structural elements 27.2 differ from each other by their shape and / or the execution of the flow guide.
  • FIGS. 16, 19 and 20 each show node elements forming hollow structural elements 27.2, the flow guide is designed as an inner wall 83, by means of which coolant 39 is directed by one of the truss structure forming hollow structural elements 27.1 in another of these hollow structural elements 27.1.
  • FIGS. 17, 18 and 21 each show node elements forming hollow structural elements 27.2, the flow guide comprises at least one pipe segment 85, is guided by the coolant 39.
  • the Strömungsleitvoriquesen include in the FIGS. 18 and 21 illustrated node elements forming hollow structural elements 27.2 additionally side channel terminations 84, which close the tubular segments used for the tube segments 85 of these node elements forming hollow structural elements 27.2 around the tube segments 85, so that through these exits coolant 39 can occur only within the tube segments 85.
  • the side channel terminations 84 may be formed, for example, as caps.
  • the illustrated embodiments may be combined and / or configured in various ways.
  • One possible embodiment provides for example at least one inner wall of a hollow structural element 2, 23, 24, 25, 27.1, 27.2 profiles, for example U-profiles, which are mounted in such a way that they form usable spaces for transporting coolant.
  • the connection of the hollow structure elements 2, 23, 24, 25, 27.1, 27.2 to coolant channels is further preferably such that the natural self-propelled by gravity (ie by a density difference) of the coolant 39th is supported.
  • the use of existing geometries for heat dissipation is advantageous.
  • the hollow structure serving structural elements 2, 23, 24, 25, 27.1, 27.2 of the platform foundation of the transformer platform 1 are designed such that they form a large collecting area for the natural water flow of the water 7.
  • additional water flow is conducted to the structural parts of the platform foundation which serve as coolers.
  • additional heat-emitting surfaces are attached to the outside of the hollow structure elements 2, 23, 24, 25, 27.1, 27.2, which are expediently placed in areas with favorable coolant flow conditions. Depending on the flow conditions, these surfaces can be mounted both horizontally and vertically or at an angle.
  • the shape and arrangement of these surfaces is chosen so that on the one hand, a maximum spread with the cooling medium water 7, but at the same time a disturbance of the deletion of other heat-emitting parts is avoided.
  • the additional cooling surfaces may be formed in such a way that they serve as a flow guide.
  • At least one thermoelectric generator is provided on a hollow structural element forming a cooling circuit section 2, 23, 24, 25, 27.1, 27.2 below the water level 71 of the water 2 surrounding the transformer platform 1 for utilizing a temperature difference between the temperatures of this water 7 and the coolant 39 arranged.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Transformer Cooling (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Claims (14)

  1. Plateforme (1) de transformation, comprenant au moins un élément (2, 23, 24, 25, 27.1, 27.2, 2.1, 2.2) de structure creux et un système (3) de refroidissement pour refroidir au moins un élément (11) de la plateforme (1) de transformation, dans laquelle
    - le système (3) de refroidissement comprend un circuit (3.2) de refroidissement, dans lequel passe un fluide (39) de refroidissement,
    - et au moins un tronçon du circuit (3.2) de refroidissement est formé d'un élément (2, 23, 24, 25, 27.1, 27.2, 2.1, 2.2) de structure creux, dans lequel passe le fluide (39) de refroidissement,
    caractérisée en ce que
    l'élément (2, 23, 24, 25, 27.1, 27.2, 2.1, 2.2) de structure creux est un élément constitué de façon tubulaire, qui représente, au moins en partie, la construction porteuse de la fondation de la plateforme (1) de transformation.
  2. Plateforme (1) de transformation suivant la revendication 1,
    caractérisée par
    un circuit (3.1) de refroidissement intermédiaire, qui est disposé thermiquement entre le circuit (3.2) de refroidissement et au moins un élément (11) de la plateforme (1) de transformation et qui, par un échangeur de chaleur (3) est couplé thermiquement au circuit (3.2) de refroidissement.
  3. Plateforme (1) de transformation suivant l'une des revendications précédentes,
    caractérisée par
    plusieurs éléments (2, 23, 24, 25, 27.1, 27.2, 2.1, 2.2) de structure creux reliés entre eux, qui forment ensemble un tronçon du circuit (3.2) de refroidissement.
  4. Plateforme (1) de transformation suivant l'une des revendications précédentes,
    caractérisée en ce qu'
    au moins un élément (2, 23, 24, 25, 27.1, 27.2, 2.1, 2.2) de structure creux, qui forment un tronçon du circuit (3.2) de refroidissement, est disposé, au moins en partie, dans l'eau (7) entourant la plateforme (1) de transformation.
  5. Plateforme (1) de transformation suivant la revendication 4,
    caractérisée par
    au moins un générateur thermoélectrique, qui est monté sur un élément (2, 23, 24, 25, 27.1, 27.2, 2.1, 2.2) de structure creux formant un tronçon du circuit de refroidissement, en dessous du niveau de l'eau (7) entourant la plateforme (1) de transformation, pour utiliser une différence de température entre les températures de cette eau (7) et du fluide (39) de refroidissement.
  6. Plateforme (1) de transformation suivant l'une des revendications précédentes,
    caractérisée en ce qu'
    à l'intérieur d'au moins un élément (2, 23, 24, 25, 27.1, 27.2, 2.1, 2.2) de structure creux, qui forment un tronçon du circuit (3.2) de refroidissement, est disposé au moins un tuyau (22) intérieur de manière à créer une partie (21) de conduit du fluide (39) de refroidissement entre l'élément (2, 23, 24, 25, 27.1, 27.2, 2.1, 2.2) de structure creux et le tuyau (22) intérieur.
  7. Plateforme (1) de transformation suivant la revendication 6,
    caractérisée par
    des canaux (47, 48) de liaison, qui relient l'intérieur d'au moins un tuyau (22) intérieur à ce qui entoure l'élément (2, 23, 24, 25, 27.1, 27.2, 2.1, 2.2) de structure creux contenant le tuyau (22) intérieur, de manière à ce que de l'eau (7), entourant la plateforme (1) de transformation, puisse entrer à l'intérieur du tuyau (22) intérieur et sortir de l'intérieur du tuyau (22) intérieur.
  8. Plateforme (1) de transformation suivant la revendication 6 ou 7,
    caractérisée par
    au moins une ouverture (28) dans au moins un tuyau (22) intérieur menant à la partie (21) comprise entre le tuyau (22) intérieur et l'élément (2, 23, 24, 25, 27.1, 27.2, 2.1, 2.2) de structure creux contenant le tuyau (22) intérieur.
  9. Plateforme (1) de transformation suivant l'une des revendications précédentes,
    caractérisée par
    au moins un élément (41, 42, 43) de raidissement, monté sur un élément (2, 23, 24, 25, 27.1, 27.2, 2.1, 2.2) de structure creux formant un tronçon du circuit de refroidissement, l'élément (41, 42, 43) de raidissement étant constitué sous la forme d'ailettes de refroidissement pour refroidir du fluide (39) de refroidissement ou ayant au moins un canal (51) pour conduire du fluide (39) de refroidissement.
  10. Plateforme (1) de transformation suivant l'une des revendications précédentes,
    caractérisée par
    au moins deux éléments (2.1, 2.2) de structure creux conduisant du fluide de refroidissement, qui sont reliés au moyen d'une liaison (9) Grout, leurs parties conduisant du fluide de refroidissement communiquant entre elles par au moins un élément (94) de liaison de fluide de refroidissement dans lequel du fluide (39) de refroidissement peut passer.
  11. Plateforme (1) de transformation suivant l'une des revendications précédentes,
    caractérisée par
    au moins un dispositif de conduite d'écoulement disposé dans un élément (2, 23, 24, 25, 27.1, 27.2, 2.1, 2.2) de structure creux, formant un tronçon du circuit de refroidissement, pour faire s'écouler le fluide (39) de refroidissement dans l'élément (2, 23, 24, 25, 27.1, 27.2, 2.1, 2.2) de structure creux.
  12. Plateforme (1) de transformation suivant l'une des revendications précédentes,
    caractérisée par
    au moins un élément (27.2) de structure creux formant un élément nodal, qui relie d'autres éléments (27.1) de structure creux conduisant du fluide de refroidissement et qui a, à l'intérieur, un dispositif de conduite d'écoulement pour conduire le fluide (39) de refroidissement.
  13. Plateforme (1) de transformation suivant l'une des revendications précédentes,
    caractérisée en ce que
    le circuit (3.2) de refroidissement, y compris au moins un élément (2, 23, 24, 25, 27.1) de structure creux formant un tronçon du circuit de refroidissement, est fermé hermétiquement par rapport à ce qui entoure la plateforme (1) de transformation.
  14. Plateforme (1) de transformation suivant l'une des revendications précédentes,
    caractérisée par
    au moins un espace (29) de compensation contenant un gaz pour recevoir du fluide (39) de refroidissement du circuit (3.2) de refroidissement s'il se produit des variations de volume du fluide (39) de refroidissement.
EP12192541.6A 2012-11-14 2012-11-14 Plateforme de transformation avec installation de refroidissement Active EP2733266B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO12192541A NO2733266T3 (fr) 2012-11-14 2012-11-14
DK12192541.6T DK2733266T3 (en) 2012-11-14 2012-11-14 Transformer platform with cooling system
EP12192541.6A EP2733266B1 (fr) 2012-11-14 2012-11-14 Plateforme de transformation avec installation de refroidissement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12192541.6A EP2733266B1 (fr) 2012-11-14 2012-11-14 Plateforme de transformation avec installation de refroidissement

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EP2733266B1 true EP2733266B1 (fr) 2018-02-28

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Publication number Priority date Publication date Assignee Title
GB2577044A (en) * 2018-09-10 2020-03-18 Equinor Energy As Cooling water for an offshore platform
EP3715759A1 (fr) * 2019-03-29 2020-09-30 Siemens Aktiengesellschaft Installation de refroidissement, agencement d'un refroidisseur de l'installation de refroidissement, dispositif de nettoyage pour le refroidisseur et système pourvu d'installation de refroidissement

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Publication number Priority date Publication date Assignee Title
FR2596144B1 (fr) 1986-03-24 1988-05-27 Jouet Etienne Echangeur de chaleur spirale et son procede de fabrication
DE19810185C1 (de) 1998-03-10 1999-10-21 Renzmann Und Gruenewald Gmbh Spiralwärmetauscher
DE19913459C1 (de) 1999-03-25 2000-08-03 Renzmann Und Gruenewald Gmbh Spiralwärmeaustauscher und Verfahren zu seiner Herstellung
DE19959467B4 (de) 1999-08-20 2006-02-23 Renzmann und Grünewald GmbH Doppelrohrsicherheitswärmeübertrager
DE10324228B4 (de) 2003-05-28 2006-02-16 Rittal Gmbh & Co. Kg Kühlvorrichtung für eine Offshore-Windenergieanlage
DE102004063508B4 (de) * 2004-12-27 2008-10-16 Siemens Ag Elektrisches Bauteil mit Kühlkreislauf für den Unterwasserbetrieb
DE102005031359B3 (de) * 2005-06-30 2007-01-25 Siemens Ag Stufenschalter

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Title
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Publication number Publication date
NO2733266T3 (fr) 2018-07-28
EP2733266A1 (fr) 2014-05-21
DK2733266T3 (en) 2018-04-30

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