EP2303683B1 - Sea chest cooler comprising an integrated antifouling system - Google Patents

Sea chest cooler comprising an integrated antifouling system Download PDF

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EP2303683B1
EP2303683B1 EP09765831.4A EP09765831A EP2303683B1 EP 2303683 B1 EP2303683 B1 EP 2303683B1 EP 09765831 A EP09765831 A EP 09765831A EP 2303683 B1 EP2303683 B1 EP 2303683B1
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EP
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Prior art keywords
tas
antifouling system
integrated
nozzle
cooler
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EP09765831.4A
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German (de)
French (fr)
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EP2303683A2 (en
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Gunter Höffer
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
    • B63B59/04—Preventing hull fouling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/0206—Heat exchangers immersed in a large body of liquid
    • F28D1/022—Heat exchangers immersed in a large body of liquid for immersion in a natural body of water, e.g. marine radiators
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/06—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits having a single U-bend
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G13/00—Appliances or processes not covered by groups F28G1/00 - F28G11/00; Combinations of appliances or processes covered by groups F28G1/00 - F28G11/00
    • F28G13/005—Appliances or processes not covered by groups F28G1/00 - F28G11/00; Combinations of appliances or processes covered by groups F28G1/00 - F28G11/00 cleaning by increasing the temperature of heat exchange surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
    • B63B2013/005—Sea chests

Definitions

  • the invention relates to a sea chest cooler on ships and offshore platforms, where by an integrated antifouling system barnacles, shells and other fouling organisms are killed as a result of regularly repeatable overheating.
  • the invention relates to a process and a device, which is based on the object, an effective and environmentally friendly method and apparatus for inhibiting fouling and avoidance of pipelines, filters, heat exchangers, fittings, pumps, sea chest coolers sporadically in sea boxes or constantly in contact with seawater are to develop for ships, offshore platforms etc.
  • the method is characterized in that the seawater segregated in the sea box from the environment, the sea chest cooler from the cooling operation, by mechanical switching the high-temperature circuit to be protected sea chest cooler this even for localized, short-term and regularly repeatable heating of the enclosed seawater is used.
  • the device for carrying out the method is that individual sea boxes of a seawater system and connecting them Pipelines and ducts as well as the components installed in the seawater system, such as sea chest coolers, pumps and fittings form separate subsystems, so that a short-term and locally limited, regular overheating of the enclosed seawater takes place and thus the entire seawater system is partially protected from fouling.
  • the subsystems are divided into an active and passive subsystem. In the sea operation, the blind is open in the active sea chest and the shut-off valve is closed and the passive subsystem is in the cleaning mode with blind closed, so that the components in the passive sea box locally limited, short-term and regularly overheated repeatable.
  • the disadvantage of the device is that the inlet and outlet funnels in different chambers of the radiator cap must be mechanically interconnected so that the inlet funnels above the inlet and the outlet funnels can be positioned above the outlet of the same Einzelebenübertragers to dissolve them out of the cooling circuit and thus to protect against fouling in a separate heating circuit.
  • the technical effort for the mechanical coupling of the two funnels together seems very complicated and prone to failure.
  • the in DE-PS 102005029988 B3 described device for heating a separate electric heating, which leads to an additional energy requirement of up to an estimated 60KW and should therefore be avoided for reasons of sustainability and environmental protection.
  • cooling device consists of a tube bundle with heat exchanger tubes, which form a surface on the tube plate. This area is completed by a water header, which includes the stubs for the inlet and outlet of the cooling water.
  • a cathode and at least one copper anode at a distance from the tube plate, the antifouling effect should be achieved.
  • the disadvantage of Cu anodes is that the distribution of copper ions occurs randomly, as it is highly dependent on the speed and direction of the seawater, as well as in the past due to the potential difference to the steel of the sea box, causing electrochemical corrosion. This led to very expensive repairs at the sea box. Furthermore, copper is a poison for living beings in the water in this concentration.
  • the object of the invention is to design a sea chest cooler against fouling by microorganisms, such as barnacles, shells, algae, etc already in its construction so that the simplest possible device the sea chest cooler by continuously overheating a defined number of rows of tubes fully automatic both in the actual cooling operation and can protect at standstill. This should be done without a system separation.
  • the necessary heating energy should be decoupled energetically efficient, for example, from the hot high-temperature circuit of main engine or auxiliary diesel.
  • TAS thermal antifouling system
  • This TAS device consists, for example, of a nozzle 1 which rotates in angular increments, following the circular arrangement of the heat exchanger tubes 20 in the tube plate 14, so that in the respective section the fouling organisms due to regular impingement of individual heat exchanger tubes 20 or sections of the sea chest cooler by means of heated water on the tube outer wall and / or killed in the vicinity of the tube bundle.
  • the cooling area of the sea chest cooler may be increased accordingly in order to dissipate the additional heat introduced into the system, preferably from the hot engine cooling water circuit (ME-HAT).
  • ME-HAT hot engine cooling water circuit
  • the advantages of the invention are that the antifouling of the sea chest cooler with the integrated TAS in the ongoing sea operation and without the box cooler to take out of service is possible.
  • anti-fouling in harbor operation can also be carried out via a separate pre-heater in the TAS circuit, such as the auxiliary or over-production condenser.
  • Another positive side effect is that it can be preheated via the low-temperature ME-LT device in port operation, thus keeping the main engine ready for use at all times. This can be dispensed with the traditional preheating unit which saves ongoing energy costs and acquisition costs.
  • FIG. 1a shows the sea chest cooler 16 with its main components such as tube bundle 9, cover 12 and the integrated TAS device 13.
  • the engine cooling water enters through the inlet 2 into the space of the sea chest cooler 16, which is formed by cover 12 and tube sheet 14.
  • FIG. 1b and Figure 1c show the structural design of the tube sheet 14 with the circular arrangement of the U-tubes and the middle tube bottom portion of the nozzle chamber 21 (from FIG. 1a ) to which the TAS nozzle 1 (out FIG. 1a ) above the TAS device 13 (off FIG. 1a ) works specifically to the heat exchanger tubes 20 (out FIG. 1 a) to protect against growth.
  • the heat exchanger tubes 20 are arranged by two connected in series, adjacent cooling circuits.
  • the outlet openings of the heat exchanger tubes 20 of the first half of the radiator form with the inlet openings of the heat exchanger tubes 20 of the second half of the radiator a virtually circular or square central area of the tube bottom 14.
  • the heated water flows through the TAS water inlet 8 with its shut-off valve 10, the rotary feedthrough 6 to the TAS nozzle 1 towards a small number of heat exchanger tubes 20 of the tube bundle 9 to heat them.
  • the rotating union 6 seals the TAS device 13 to the sea box lid 12 to the outside, at the same time passes the TAS water to the TAS nozzle 1 and allows rotational and axial movements of the TAS nozzle first
  • FIG. 3 and 4 are sectional views through the lid 12 and show the TAS nozzle 1 in lowered and raised position.
  • the integrated TAS device 13 with the lifting unit 4 shown in FIG Fig.2 ), which presses on the shaft of the rotary union 6, provides for the lifting of the TAS nozzle 1, holding the TAS nozzle 1 in the raised position during the further rotation in the next position, then the TAS nozzle 1 lowers after reaching the next position and the pressing of the TAS nozzle 1 to the tube sheet 14 secures to heat the next circle segment of heat exchanger tubes 20.
  • the rotary drive 5 transmits the torque according to the execution by a belt 7 on the shaft of the rotary feedthrough. 6
  • FIG. 5 shows the circular arrangement of the heat exchanger tubes 20.
  • the TAS nozzle 1 rotates in angular steps, the circular arrangement of Heat exchanger tubes 20 in the tube plate 14 following and creates special sections, which separates them from the actual cooling water.
  • the TAS nozzle 1 acts on the sealed-off circular segment of the tube bundle 9 of individual heat exchanger tubes 20 with hot water.
  • a separate TAS device 13 is installed in each but at least in each second nozzle chamber 21.
  • the TAS nozzle 1 can be both radially, as in FIG. 5 shown, as well as running over the entire diameter or in a kind of circular segment shape.
  • FIG. 6 shows the basic arrangement of the components in the low-temperature circuit of the engine cooling water (ME-LT) to heat a partial flow of this engine cooling water and enter the sea chest cooler 16 via TAS water inlet 8 with its shut-off valve 10.
  • the temperature control valve 19 Via the temperature control valve 19, the water is heated to a temperature level of at least 75 ° C.
  • the valves 22 and 23 are opened depending on the temperature via a controller.
  • the TAS nozzle 1 is lowered and the heated TAS water flows into the sectioned off by the TAS nozzle 1 section and heats it up.
  • the sequence of an entire TAS cycle takes place in angular steps, and that until the nozzle has completed a full circular motion with at least 360 °.

Description

Die Erfindung betrifft einen Seekastenkühler auf Schiffen und Offshore-Plattformen, bei denen durch ein integriertes Bewuchsschutzsystem Seepocken, Muscheln und andere Bewuchsorganismen infolge regelmäßig wiederholbarer Überhitzung abgetötet werden.The invention relates to a sea chest cooler on ships and offshore platforms, where by an integrated antifouling system barnacles, shells and other fouling organisms are killed as a result of regularly repeatable overheating.

Stand der TechnikState of the art

Der Bewuchs an Schiffen, Schiffsteilen und in Rohrleitungssystemen sowie deren Komponenten ist nicht zuletzt durch die verstärkte Gewässerverschmutzung rasant gestiegen. Es wird international durch verschiedene Methoden versucht, diesen Bewuchs zu reduzieren bzw. zu vermeiden.The fouling of ships, ship parts and piping systems as well as their components has risen rapidly, not least because of increased water pollution. It is tried internationally by various methods to reduce this growth or avoid.

In der DE-PS 19921433 C1 wird ein Verfahren und eine Vorrichtung beschrieben, der die Aufgabe zugrunde liegt, ein wirksames und umweltfreundliches Verfahren und eine Vorrichtung zur Bewuchshemmung und -vermeidung an Rohrleitungen, Filtern, Wärmetauschern, Armaturen, Pumpen, Seekastenkühlern, die in Seekästen sporadisch oder ständig in Berührung mit Seewasser sind, für Schiffe, Offshore-Plattformen etc. zu entwickeln.In the DE-PS 19921433 C1 The invention relates to a process and a device, which is based on the object, an effective and environmentally friendly method and apparatus for inhibiting fouling and avoidance of pipelines, filters, heat exchangers, fittings, pumps, sea chest coolers sporadically in sea boxes or constantly in contact with seawater are to develop for ships, offshore platforms etc.

Das Verfahren ist dadurch gekennzeichnet, dass das Seewasser im Seekasten von der Umwelt abgeschottet, der Seekastenkühler aus dem Kühlbetrieb genommen, durch mechanische Umschaltung des Hochtemperaturkreises auf den zu schützenden Seekastenkühler dieser selbst zur lokal begrenzten, kurzfristigen und regelmäßig wiederholbaren Aufheizung des eingeschlossenen Seewassers benutzt wird.The method is characterized in that the seawater segregated in the sea box from the environment, the sea chest cooler from the cooling operation, by mechanical switching the high-temperature circuit to be protected sea chest cooler this even for localized, short-term and regularly repeatable heating of the enclosed seawater is used.

Die Vorrichtung zur Durchführung des Verfahrens besteht darin, dass einzelne Seekästen eines Seewassersystems und die sie verbindenden Rohrleitungen und Kanäle sowie die im Seewassersystem eingebauten Komponenten, wie Seekastenkühler, Pumpen und Armaturen getrennte Teilsysteme bilden, so dass eine kurzfristige und lokal begrenzte, regelmäßige Überhitzung des eingeschlossenen Seewassers erfolgt und damit das gesamte Seewassersystem abschnittsweise vor Bewuchs geschützt wird. Ein weiteres Merkmal besteht darin, dass die Teilsysteme in ein aktives und passives Teilsystem unterteilt werden. Dabei ist im Seebetrieb die Jalousie im aktiven Seekasten geöffnet und die Absperrarmatur geschlossen und das passive Teilsystem befindet sich im Reinigungsbetrieb mit geschlossener Jalousie, so dass die Komponenten im passiven Seekasten lokal begrenzt, kurzfristig und regelmäßig wiederholbar überhitzt werden.The device for carrying out the method is that individual sea boxes of a seawater system and connecting them Pipelines and ducts as well as the components installed in the seawater system, such as sea chest coolers, pumps and fittings form separate subsystems, so that a short-term and locally limited, regular overheating of the enclosed seawater takes place and thus the entire seawater system is partially protected from fouling. Another feature is that the subsystems are divided into an active and passive subsystem. In the sea operation, the blind is open in the active sea chest and the shut-off valve is closed and the passive subsystem is in the cleaning mode with blind closed, so that the components in the passive sea box locally limited, short-term and regularly overheated repeatable.

Die Nachteile dieser Erfindung bestehen darin, dass Modifikationen an der Schiffsstruktur, wie beispielweise wegen des notwendigen Einbaus einer Klappe zum Verschließen der Auslassschlitze des Seekastens, notwendig sind. Eventuelle Wartungsarbeiten an den Verschlüssen sind häufig nur im Dock möglich und könnten zu unplanmäßigen Unterbrechungen im Schiffsbetrieb führen.The disadvantages of this invention are that modifications to the ship's structure, such as the need to install a flap to close the outlet slots of the marine box, are necessary. Any maintenance on the closures is often possible only in the dock and could lead to unscheduled interruptions in ship operation.

In der DE-PS 102005029988 B3 wird eine Vorrichtung dargestellt, deren Aufgabe es ist, die Wärmeträger vor Bewuchs dauerhaft und wirkungsvoll zu schützen, ohne den Betrieb des Wärmeübertragers zu unterbrechen.In the DE-PS 102005029988 B3 a device is shown whose role is to protect the heat transfer from fouling permanently and effectively, without interrupting the operation of the heat exchanger.

Gelöst werden soll dieses Problem bei Wärmeübertragern, die aus einer Vielzahl von Einzelwärmeübertragern bestehen dadurch, dass durch bewegliche und über den Zu- und Rücklauföffnungen der Einzelwärmeübertrager positionierte Trichter das Fluid von mindestens einem Einzelwärmeübertrager vom eigentlichen Kühlkreislauf getrennt wird. Mittels einer Pumpe wird dieses Fluid in den abgetrennten Kreislauf gebracht, durchströmt die Wärmequelle und wird dort auf ein höheres Temperaturniveau gebracht. Danach rezirkuliert das erwärmte Fluid den aus dem Kühlkreislauf abgetrennten Einzelwärmeübertrager. Nach Beendigung des Aufheizzyklusses werden die Trichter über einem anderen Einzelwärmeübertrager abdichtend in Position gebracht, so dass der Ablauf sich für alle Einzelwärmeübertrager wiederholt.This problem is to be solved in the case of heat exchangers consisting of a large number of individual heat exchangers in that the fluid is separated from the actual cooling circuit by at least one individual heat exchanger by means of movable funnels positioned above the supply and return openings of the individual heat exchangers. By means of a pump, this fluid is brought into the separated circuit, flows through the heat source and is brought there to a higher temperature level. Thereafter, the heated fluid recirculates the separated from the cooling circuit of individual heat exchanger. After completion of the heating cycle, the funnels will be over one other single heat exchanger sealingly placed in position, so that the sequence is repeated for all individual heat exchanger.

Der Nachteil der Vorrichtung besteht darin, dass die Ein- und Auslasstrichter in verschiedenen Kammern des Kühlerdeckels mechanisch miteinander verbunden werden müssen, damit die Einlasstrichter über dem Einlass und die Auslasstrichter über dem Auslass desselben Einzelwärmeübertragers positioniert werden können, um sie aus dem Kühlkreislauf herauslösen und somit in einem separaten Aufheizkreislauf gegen Bewuchs schützen zu können. Der technische Aufwand für die mechanische Kopplung der beiden Trichter miteinander erscheint sehr aufwendig und störanfällig. Des Weiteren setzt die in DE-PS 102005029988 B3 beschriebene Vorrichtung für das Aufheizen eine separate elektrische Heizung ein, die zu einem zusätzlichen Energiebedarf von bis zu geschätzten 60KW führt und somit aus Gründen der Nachhaltigkeit und des Umweltschutzes unbedingt vermieden werden sollte.The disadvantage of the device is that the inlet and outlet funnels in different chambers of the radiator cap must be mechanically interconnected so that the inlet funnels above the inlet and the outlet funnels can be positioned above the outlet of the same Einzelwärmeübertragers to dissolve them out of the cooling circuit and thus to protect against fouling in a separate heating circuit. The technical effort for the mechanical coupling of the two funnels together seems very complicated and prone to failure. Furthermore, the in DE-PS 102005029988 B3 described device for heating a separate electric heating, which leads to an additional energy requirement of up to an estimated 60KW and should therefore be avoided for reasons of sustainability and environmental protection.

Die in EP 1233159 A1 beschriebene Kühl-Vorrichtung besteht aus einem Rohrbündel mit Wärmetauscherrohren, welche auf der Rohrplatte eine Fläche bilden. Diese Fläche wird durch ein Wasser-Kopfstück abgeschlossen, welches die Stichleitungen für den Einlass und den Auslass des Kühl-Wassers umfasst. Durch die Anordnung einer Kathode und mindestens einer kupfernen Anode in einem Abstand von der Rohrplatte soll die Antifoulingwirkung erreicht werden. Der Nachteil der Cu-Anoden ist, dass die Verteilung der Kupferionen zufällig erfolgt, da sie stark von der Geschwindigkeit und Fließrichtung des Seewassers abhängig ist sowie Fehlbedienungen in der Vergangenheit auf Grund der Potentialdifferenz zum Stahl des Seekastens, elektrochemische Korrosion auslösten. Dies führte zu sehr aufwendigen Reparaturen am Seekasten. Desweiteren stellt Kupfer für die Lebewesen im Wasser in dieser Konzentration ein Gift dar.In the EP 1233159 A1 described cooling device consists of a tube bundle with heat exchanger tubes, which form a surface on the tube plate. This area is completed by a water header, which includes the stubs for the inlet and outlet of the cooling water. By arranging a cathode and at least one copper anode at a distance from the tube plate, the antifouling effect should be achieved. The disadvantage of Cu anodes is that the distribution of copper ions occurs randomly, as it is highly dependent on the speed and direction of the seawater, as well as in the past due to the potential difference to the steel of the sea box, causing electrochemical corrosion. This led to very expensive repairs at the sea box. Furthermore, copper is a poison for living beings in the water in this concentration.

Darstellung der ErfindungPresentation of the invention

Aufgabe der Erfindung ist es, einen Seekastenkühler gegen Bewuchs durch Mikroorganismen, wie Seepocken, Muscheln, Algen etc bereits in seiner Bauweise so zu konzipieren, dass eine möglichst einfache Vorrichtung den Seekastenkühler durch kontinuierliches Überhitzen einer definierten Anzahl von Rohrreihen vollautomatisch sowohl im eigentlichen Kühlbetrieb als auch im Stillstand schützen kann. Dies soll ohne eine Systemtrennung erfolgen. Die notwendige Aufheizenergie soll energetisch effizient zum Beispiel aus dem heißen Hochtemperatur-Kreislauf von Hauptmotor oder Hilfsdiesel ausgekoppelt werden.The object of the invention is to design a sea chest cooler against fouling by microorganisms, such as barnacles, shells, algae, etc already in its construction so that the simplest possible device the sea chest cooler by continuously overheating a defined number of rows of tubes fully automatic both in the actual cooling operation and can protect at standstill. This should be done without a system separation. The necessary heating energy should be decoupled energetically efficient, for example, from the hot high-temperature circuit of main engine or auxiliary diesel.

Die Aufgabe wurde erfindungsgemäß entsprechend der Merkmale der Patentansprüche gelöst.The object has been achieved according to the features of the claims.

Bei den Seekastenkühlern mit integriertem Thermal Antifouling System - folgend TAS genannt - wird durch das neue Design des Rohrbündels eine nahezu kreisrunde oder quadratische Anordnung der Wärmetauscherrohre 20 spezielle Sektionen geschaffen, die es ermöglichen einzelne Kreissegmente des Rohrbündels des Seekastenkühlers durch eine mechanische TAS-Vorrichtung während oder außerhalb des Kühlbetriebes mittels heißem Wasser zu beaufschlagen. Diese TAS-Vorrichtung besteht beispielhaft aus einer in Winkelschritten rotierenden Düse 1, die der kreisartigen Anordnung der Wärmetauscherrohre 20 im Rohrboden 14 folgt, so dass in der jeweiligen Sektion die Bewuchsorganismen infolge regelmäßiger Beaufschlagung einzelner Wärmetauscherrohre 20 oder Sektionen des Seekastenkühlers mittels aufgeheizten Wassers an der Rohraußenwand und / oder in der engeren Umgebung des Rohrbündels abgetötet werden.In the sea chest coolers with integrated thermal antifouling system - hereinafter called TAS - the new design of the tube bundle creates a nearly circular or square arrangement of the heat exchanger tubes 20 special sections that allow individual segments of the tube bundle of the sea chest cooler to be driven by a mechanical TAS device during or to apply hot water outside the cooling mode. This TAS device consists, for example, of a nozzle 1 which rotates in angular increments, following the circular arrangement of the heat exchanger tubes 20 in the tube plate 14, so that in the respective section the fouling organisms due to regular impingement of individual heat exchanger tubes 20 or sections of the sea chest cooler by means of heated water on the tube outer wall and / or killed in the vicinity of the tube bundle.

Dabei ist unter Umständen die Kühlfläche des Seekastenkühlers entsprechend zu vergrößern, um die zusätzlich ins System eingebrachte Wärme, vorzugsweise aus dem heißen Motorkühlwasserkreislauf (ME-HAT) abführen zu können. Dies kann jedoch durch die Reduzierung der Fouling margin auf Grund der erheblich sauberen Kühler in den meisten Fällen mehr als kompensiert werden.Under certain circumstances, the cooling area of the sea chest cooler may be increased accordingly in order to dissipate the additional heat introduced into the system, preferably from the hot engine cooling water circuit (ME-HAT). However, this can be more than compensated for by reducing the fouling margin due to the significantly cleaner radiators in most cases.

Die Vorteile der Erfindung bestehen darin, dass der Bewuchsschutz des Seekastenkühlers mit dem integrierten TAS im laufenden Seebetrieb und ohne den Kastenkühler außer Betrieb nehmen zu müssen möglich ist. Bei längeren Liegezeiten kann der Bewuchsschutz im Hafenbetrieb über einen separaten Vorwärmer im TAS-Kreis, wie beispielsweise den Hilfs- oder Überproduktionskondensator ebenfalls durchgeführt werden. Ein weiterer positiver Nebeneffekt ist, das über die Vorrichtung der Niedrigtemperaturkreislauf ME-LT im Hafenbetrieb vorgewärmt werden kann und somit die Hauptmaschine jederzeit betriebsbereit gehalten wird. Damit kann auf die traditionelle Vorwärmeinheit verzichtet werden was laufende Energiekosten und Anschaffungskosten spart.The advantages of the invention are that the antifouling of the sea chest cooler with the integrated TAS in the ongoing sea operation and without the box cooler to take out of service is possible. In the case of longer lay times, anti-fouling in harbor operation can also be carried out via a separate pre-heater in the TAS circuit, such as the auxiliary or over-production condenser. Another positive side effect is that it can be preheated via the low-temperature ME-LT device in port operation, thus keeping the main engine ready for use at all times. This can be dispensed with the traditional preheating unit which saves ongoing energy costs and acquisition costs.

Kurze Beschreibung der AbbildungenBrief description of the illustrations

Die Erfindung wird anhand eines Ausführungsbeispiels näher erläutert. Es zeigen:The invention will be explained in more detail with reference to an embodiment. Show it:

  • Fig.1a Seekastenkühler mit TAS-Vorrichtung 13 für Bewuchsschutz 1a Sea chest cooler with TAS device 13 for anti-fouling
  • Fig.1b Ansicht auf Rohrboden 14 mit Kreissegmenten 15 1b shows View on tube sheet 14 with circle segments 15th
  • Fig.1c Draufsicht auf Rohrboden 14 Figure 1C Top view of tube sheet 14
  • Fig.2 Weg des aufgeheizten Wassers bei abgesenkter Düse 1 Fig.2 Path of heated water with lowered nozzle 1
  • Fig.3 Seitliche Schnittdarstellung der TAS- Vorrichtung 13 mit abgesenkter Düse 1 Figure 3 Lateral sectional view of the TAS device 13 with the nozzle 1 lowered
  • Fig.4 TAS- Vorrichtung 13 mit angehobener Düse 1 Figure 4 TAS device 13 with the nozzle 1 raised
  • Fig.5 Darstellung des Fahrweges der TAS-Düse 1 im TAS-Betrieb Figure 5 Representation of the travel path of the TAS nozzle 1 in TAS mode
  • Fig.6 Flußdiagramm eines Seekastenkühlers mit integriertem TAS Figure 6 Flowchart of a sea chest cooler with integrated TAS
Ausführung der ErfindungEmbodiment of the invention

Figur 1a zeigt den Seekastenkühler 16 mit seinen Hauptkomponenten wie Rohrbündel 9, Deckel 12 und die integrierte TAS-Vorrichtung 13. Das Motorkühlwasser tritt durch den Eintrittstutzen 2 in den Raum des Seekastenkühlers 16, der durch Deckel 12 und Rohrboden 14 gebildet wird. FIG. 1a shows the sea chest cooler 16 with its main components such as tube bundle 9, cover 12 and the integrated TAS device 13. The engine cooling water enters through the inlet 2 into the space of the sea chest cooler 16, which is formed by cover 12 and tube sheet 14.

Figur 1b und Figur 1c zeigen die konstruktive Ausführung des Rohrbodens 14 mit der kreisrunden Anordnung der U-Rohre und den mittleren Rohrbodenbereich der Düsenkammer 21 (aus Figur 1a), auf den die TAS-Düse 1 (aus Figur 1a) über der TAS-Vorrichtung 13 (aus Figur 1a) gezielt arbeitet, um die Wärmetauscherrohre 20 (aus Figur 1 a) gegen Bewuchs zu schützen. FIG. 1b and Figure 1c show the structural design of the tube sheet 14 with the circular arrangement of the U-tubes and the middle tube bottom portion of the nozzle chamber 21 (from FIG. 1a ) to which the TAS nozzle 1 (out FIG. 1a ) above the TAS device 13 (off FIG. 1a ) works specifically to the heat exchanger tubes 20 (out FIG. 1 a) to protect against growth.

Im rechteckigen Rohrboden 14 sind die Wärmetauscherrohre 20 von zwei in Reihe geschalten, nebeneinander liegenden Kühlkreisläufen angeordnet. Die Austrittsöffnungen der Wärmetauscherrohre 20 der ersten Kühlerhälfte bilden mit den Eintrittsöffnungen der Wärmetauscherrohre 20 der zweiten Kühlerhälfte eine nahezu kreisrunde oder quadratische Mittelfläche des Rohrbodens 14.In the rectangular tube sheet 14, the heat exchanger tubes 20 are arranged by two connected in series, adjacent cooling circuits. The outlet openings of the heat exchanger tubes 20 of the first half of the radiator form with the inlet openings of the heat exchanger tubes 20 of the second half of the radiator a virtually circular or square central area of the tube bottom 14.

Wie in Figur 2 gezeigt, strömt das aufgeheizte Wasser über den TAS-Wassereintritt 8 mit seinem Absperrventil 10, die Drehdurchführung 6 zur TAS-Düse 1 hin zu einer kleinen Anzahl von Wärmetauscherrohren 20 des Rohrbündels 9, um diese aufzuheizen. Die Drehdurchführung 6 dichtet die TAS-Vorrichtung 13 zum Seekastendeckel 12 nach außen ab, leitet gleichzeitig das TAS Wasser an die TAS-Düse 1 weiter und ermöglicht Dreh- und Axialbewegungen der TAS-Düse 1.As in FIG. 2 shown, the heated water flows through the TAS water inlet 8 with its shut-off valve 10, the rotary feedthrough 6 to the TAS nozzle 1 towards a small number of heat exchanger tubes 20 of the tube bundle 9 to heat them. The rotating union 6 seals the TAS device 13 to the sea box lid 12 to the outside, at the same time passes the TAS water to the TAS nozzle 1 and allows rotational and axial movements of the TAS nozzle first

Figur 3 und 4 sind Schnittdarstellungen durch den Deckel 12 und zeigen die TAS-Düse 1 in abgesenkter und angehobener Position. Diese beschreiben erfindungsgemäß die integrierte TAS-Vorrichtung 13 mit der Hubeinheit 4 (dargestellt in Fig.2), die auf die Welle der Drehdurchführung 6 drückt, für das Abheben der TAS-Düse 1 sorgt, die TAS-Düse 1 in abgehobener Position während des Weiterdrehens in die nächste Position hält, dann die TAS-Düse 1 nach Erreichen der nächsten Position absenkt und das Anpressen der TAS Düse 1 an den Rohrboden 14 sichert, um das nächste Kreissegment von Wärmetauscherrohren 20 aufzuheizen. Der Drehantrieb 5 überträgt das Drehmoment ausführungsgemäß durch einem Riemen 7 auf die Welle der Drehdurchführung 6. FIG. 3 and 4 are sectional views through the lid 12 and show the TAS nozzle 1 in lowered and raised position. These describe according to the invention the integrated TAS device 13 with the lifting unit 4 (shown in FIG Fig.2 ), which presses on the shaft of the rotary union 6, provides for the lifting of the TAS nozzle 1, holding the TAS nozzle 1 in the raised position during the further rotation in the next position, then the TAS nozzle 1 lowers after reaching the next position and the pressing of the TAS nozzle 1 to the tube sheet 14 secures to heat the next circle segment of heat exchanger tubes 20. The rotary drive 5 transmits the torque according to the execution by a belt 7 on the shaft of the rotary feedthrough. 6

Figur 5 zeigt die kreisrunde Anordnung der Wärmetauscherrohre 20. Die TAS-Düse 1 rotiert in Winkelschritten, der kreisartigen Anordnung der Wärmetauscherrohre 20 im Rohrboden 14 folgend und schafft so spezielle Sektionen, die sie dadurch vom eigentlichen Kühlwasser abtrennt. Die TAS-Düse 1 beaufschlagt das abgeschottete Kreissegment des Rohrbündels 9 von einzelnen Wärmetauscherrohren 20 mit heißem Wasser. Bei sechs- und mehrflutigen Seekastenkühlern 16 wird in jeder zumindest jedoch in jeder zweiten Düsenkammer 21 eine separate TAS-Vorrichtung 13 installiert. Auch kann die TAS-Düse 1 sowohl radial, wie in Figur 5 gezeigt, als auch über den gesamten Durchmesser oder in einer Art Kreissegmentform ausgeführt werden. FIG. 5 shows the circular arrangement of the heat exchanger tubes 20. The TAS nozzle 1 rotates in angular steps, the circular arrangement of Heat exchanger tubes 20 in the tube plate 14 following and creates special sections, which separates them from the actual cooling water. The TAS nozzle 1 acts on the sealed-off circular segment of the tube bundle 9 of individual heat exchanger tubes 20 with hot water. In six- and more-floated sea chest coolers 16, a separate TAS device 13 is installed in each but at least in each second nozzle chamber 21. Also, the TAS nozzle 1 can be both radially, as in FIG. 5 shown, as well as running over the entire diameter or in a kind of circular segment shape.

Figur 6 zeigt die prinzipielle Anordnung der Komponenten im Niedrigtemperaturkreislauf des Motorkühlwasser (ME-LT), um einen Teilstrom dieses Motorkühlwassers aufzuheizen und in den Seekastenkühler 16 über TAS-Wassereintritt 8 mit seinem Absperrventil 10 einzuleiten. Über das Temperaturregelventil 19 wird das Wasser auf ein Temperaturniveau von mindestens 75°C erwärmt. Die Ventile 22 und 23 werden temperaturabhängig über eine Steuerung geöffnet. Vorher wird die TAS-Düse 1 abgesenkt und das aufgeheizte TAS-Wasser strömt in die durch die TAS-Düse 1 abgeschottete Sektion und heizt diese auf. Der Ablauf eines gesamten TAS Zyklus erfolgt in Winkelschritten, und zwar solange bis die Düse eine volle Kreisbewegung mit mindestens 360° vollzogen hat. FIG. 6 shows the basic arrangement of the components in the low-temperature circuit of the engine cooling water (ME-LT) to heat a partial flow of this engine cooling water and enter the sea chest cooler 16 via TAS water inlet 8 with its shut-off valve 10. Via the temperature control valve 19, the water is heated to a temperature level of at least 75 ° C. The valves 22 and 23 are opened depending on the temperature via a controller. Before that, the TAS nozzle 1 is lowered and the heated TAS water flows into the sectioned off by the TAS nozzle 1 section and heats it up. The sequence of an entire TAS cycle takes place in angular steps, and that until the nozzle has completed a full circular motion with at least 360 °.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
TAS- DüseTAS nozzle
22
Stutzen- KühlwassereintrittNozzle - cooling water inlet
33
Stutzen KühlwasseraustrittStutzen cooling water outlet
44
Hubeinheitlifting unit
55
Drehantrieb DüseRotary actuator nozzle
66
DrehdurchführungRotary union
77
Riemenbelt
88th
Erhitztes WasserHeated water
99
Rohrbündeltube bundle
1010
Absperrventilshut-off valve
1111
Temperatursensortemperature sensor
1212
Kühlerdeckelradiator cap
1313
TAS-VorrichtungTAS device
1414
Rohrbodentube sheet
1515
Kreissegmentcircular segment
1616
SeekastenkühlerSeekastenkühler
1717
TAS-UmwälzpumpeTAS-circulation pump
1818
TAS-WärmetauscherTAS heat exchanger
1919
TAS-TemperaturregelventilTAS-temperature control valve
2020
WärmetauscherrohreHeat exchanger tubes
2121
Düsenkammernozzle chamber
2222
Ventil-Austritt TAS-WasserValve outlet TAS water

Claims (13)

  1. Box cooler with integrated antifouling system for elimination of barnacles, mussels and others fouling organisms, using repeated overheating
    - in which the box cooler consists of a tube bundle (9) with heat exchanger tubes (20) placed in such an order to get at least one almost circular or square arrangement at the tube sheet (14) and
    - in which the antifouling system consist of a so called thermal antifouling system-device (TAS-device) (13),
    characterized by
    the almost circular or squared area of the tube sheet (14) will be created by the arrangement of the outlet openings of the heat exchanger tubes (20) of the first half of the cooler and the inlet openings of heat exchanger tubes (20) of the second cooler half of two in series connected, parallel located cooling cycles that TAS-device (13) is a rotating device provided with a TAS-nozzle (1) inside the nozzle chamber (21) in which by setting down of TAS-nozzle (1),
    a single circular segment (15) consisting of multiple heat exchanger tubes (20) from the tube bundle (9) will be covered, in a way that the environmental sealed bulkhead off heat exchanger tubes (20) are protected from seawater side fouling by separate supply of external heated water during or outside the cooling process and by furthermore rotation of the TAS-device (13) a new circular segment (15) consisting of few heat exchanger tubes (20) will be covered.
  2. Box cooler with integrated antifouling system after claim 1, characterized by the heat exchanger tubes (20) have a special surface structure, thereby better heat transfer as well as higher resistance of adherence are achieved against fouling.
  3. Box cooler with integrated antifouling system after claim 1 and 2, characterized by a rotation device (6) as part of the TAS-device (13) seals the water space inside the cooler cover (12) to the outside.
  4. Box cooler with integrated antifouling system after claim 3, characterized by on the rotating TAS-device (13) in the water chamber a TAS-nozzle (1) is assembled and its outer design follows the shape of one or multiple circular segments (15).
  5. Box cooler with integrated antifouling system after claim 1 to 4, characterized by an additional lifting device (4) is installed, which the TAS-nozzle (1) lifts up before turning of TAS-device (13) and set down again after the rotation it and the TAS-device (13) specifically pushes on the tube sheet (14).
  6. Box cooler with integrated antifouling system after claim 1 to 5, characterized by lifting, lowering and pressing the TAS-device (13) to the tube sheet (14) is performed by inside TAS-nozzle (1) integrated hydraulic plunger using the telescope principal.
  7. Box cooler with integrated antifouling system after claim 1 to 6, characterized by the revolutions from the TAS-nozzle (1) of the TAS-device (13) are adjusted specifically by a gear driver.
  8. Box cooler with integrated antifouling system after claim 1 to 7, characterized by the rotation of the TAS-device (13) gets realized by an in-water flow placed, not further described water turbine.
  9. Box cooler with integrated antifouling system after claim 1 to 8, characterized by multiple TAS-devices (13) are installed, those are run by their own or by a common drive (10) running time wise separately or simultaneously.
  10. Box cooler with integrated antifouling system after claim 1 to 9, characterized by TAS-device (13) is made of special materials to reduce friction.
  11. Box cooler with integrated antifouling system after claim 1 to 10, characterized by integrated measurement and control systems as well as final controlling systems the local short term overheating is realized self-managed and controlled frequently plus automatically.
  12. Box cooler with integrated antifouling system after claim 1 to 11, characterized by box coolers (16) with six- or more passes a separate TAS- device (13) is placed in each or at least every second nozzle chamber (21).
  13. Box cooler with integrated antifouling system after claim 1 to 12, characterized by the TAS nozzle (1) is executed as a single radial circular segment (15), a circular segment (15) over the whole diameter or in another circular segment shape.
EP09765831.4A 2008-06-20 2009-06-16 Sea chest cooler comprising an integrated antifouling system Active EP2303683B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008029464A DE102008029464B4 (en) 2008-06-20 2008-06-20 Sea chest coolers on ships and offshore platforms with integrated anti-fouling system to kill barnacles, shells and other fouling organisms by means of regularly repeatable overheating
PCT/EP2009/057430 WO2009153251A2 (en) 2008-06-20 2009-06-16 Sea chest cooler comprising an integrated antifouling system

Publications (2)

Publication Number Publication Date
EP2303683A2 EP2303683A2 (en) 2011-04-06
EP2303683B1 true EP2303683B1 (en) 2013-04-17

Family

ID=41412484

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Application Number Title Priority Date Filing Date
EP09765831.4A Active EP2303683B1 (en) 2008-06-20 2009-06-16 Sea chest cooler comprising an integrated antifouling system

Country Status (9)

Country Link
EP (1) EP2303683B1 (en)
JP (1) JP5431463B2 (en)
KR (1) KR20110027699A (en)
CN (1) CN102089204B (en)
BR (1) BRPI0914617B1 (en)
DE (1) DE102008029464B4 (en)
ES (1) ES2416063T3 (en)
SG (1) SG192421A1 (en)
WO (1) WO2009153251A2 (en)

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JP5979941B2 (en) * 2012-04-03 2016-08-31 株式会社 アメロイド日本サービス社 Facilities and methods for preventing marine organisms from growing on sea chests and the like provided at the bottom of a ship
WO2015040096A1 (en) * 2013-09-19 2015-03-26 Corrosion & Water Control Shared Services B.V. Heat exchanger for a vessel with anti-fouling system
CN104176207B (en) * 2014-07-16 2016-09-07 江苏南通申通机械有限公司 A kind of method suppressing marine micro-organisms to grow
RU2695234C2 (en) 2014-12-12 2019-07-22 Конинклейке Филипс Н.В. Cooling device for cooling of fluid medium by means of water of surface layers
KR20170095934A (en) * 2014-12-12 2017-08-23 코닌클리케 필립스 엔.브이. Cooling apparatus for cooling a fluid by means of surface water
US20170341112A1 (en) * 2014-12-12 2017-11-30 Koninklijke Philips N.V. Cooling apparatus for cooling a fluid by means of surface water
BR112017012047A2 (en) * 2014-12-12 2018-01-16 Koninklijke Philips Nv cooling apparatus and ship
WO2016177608A1 (en) 2015-05-06 2016-11-10 Koninklijke Philips N.V. Assembly comprising an object having a surface which is intended to be exposed to water and an anti-fouling protector arrangement
MX2017015829A (en) 2015-06-09 2018-04-10 Koninklijke Philips Nv Assembly comprising a wet compartment and at least one anti-fouling energy source.
EP3368229B1 (en) 2015-10-27 2021-12-08 Koninklijke Philips N.V. Anti-fouling system , controller and method of controlling the anti-fouling system
JP2019510668A (en) 2016-01-20 2019-04-18 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Device with anti-biofouling system with surface and at least one anti-biofouling light source emitting anti-biofouling light
NO342528B1 (en) * 2016-01-29 2018-06-11 Sperre Coolers As Heat exchange system
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CN108146593A (en) * 2017-11-28 2018-06-12 中国石油大学(华东) Utilize the method and device of temperature strain difference removal body structure surface barnacle
CN108502123A (en) * 2018-04-18 2018-09-07 天津艾孚森科技发展有限公司 A method of removing hull bottom marine fouling organism
DE102018109927A1 (en) * 2018-04-25 2019-10-31 Säkaphen Gmbh Sea chest cooler and seacock radiator pipe coating method
EP3715759A1 (en) * 2019-03-29 2020-09-30 Siemens Aktiengesellschaft Cooling system, arrangement of a cooler of the cooling system, cleaning device for the cooler and system with cooling system
CN110864570B (en) * 2019-11-26 2021-07-02 南通旭日船用机械有限公司 Seawater corrosion resistant titanium pipe outboard cooler

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Also Published As

Publication number Publication date
EP2303683A2 (en) 2011-04-06
CN102089204B (en) 2014-01-08
ES2416063T3 (en) 2013-07-30
BRPI0914617B1 (en) 2019-12-31
DE102008029464A1 (en) 2010-01-14
KR20110027699A (en) 2011-03-16
JP5431463B2 (en) 2014-03-05
CN102089204A (en) 2011-06-08
DE102008029464B4 (en) 2013-02-07
WO2009153251A2 (en) 2009-12-23
JP2011524834A (en) 2011-09-08
WO2009153251A4 (en) 2011-06-03
BRPI0914617A2 (en) 2015-12-08
WO2009153251A3 (en) 2010-12-23
SG192421A1 (en) 2013-08-30

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