EP2303683A2 - Sea chest cooler comprising an integrated antifouling system - Google Patents

Sea chest cooler comprising an integrated antifouling system

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Publication number
EP2303683A2
EP2303683A2 EP09765831A EP09765831A EP2303683A2 EP 2303683 A2 EP2303683 A2 EP 2303683A2 EP 09765831 A EP09765831 A EP 09765831A EP 09765831 A EP09765831 A EP 09765831A EP 2303683 A2 EP2303683 A2 EP 2303683A2
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EP
European Patent Office
Prior art keywords
tas
sea chest
fouling
chest cooler
integrated anti
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09765831A
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German (de)
French (fr)
Other versions
EP2303683B1 (en
Inventor
Gunter Höffer
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Individual
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Individual
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Classifications

    • 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 anti-fouling system barnacles, shells and other fouling organisms are killed as a result of regularly repeatable overheating.
  • 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 cleaning mode with blind closed so that the components in the passive sea box are locally limited, short-term and regularly repeatable overheated.
  • Outlet funnels in different chambers of the radiator cap must be mechanically interconnected so that the inlet funnel can be positioned above the inlet and the outlet funnel over the outlet of the same Einzelebenübertragers to dissolve out of the cooling circuit and thus protect in a separate heating circuit against fouling.
  • the technical effort for the mechanical coupling of the two funnels together seems very complicated and prone to failure.
  • the device for heating described in DE-PS 102005029988 B3 uses a separate electric heater, which leads to an additional energy requirement of up to an estimated 60KW and thus should be avoided for reasons of sustainability and environmental protection.
  • 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 continuous overheating a defined number of rows of tubes fully automatically both in the actual Can protect cooling mode as well as at a 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 following - is due to the new design of the tube bundle a almost circular or square arrangement of the heat exchanger tubes 20 special sections created that allow individual circular segments of the tube bundle of the sea chest cooler by a mechanical TAS device during or outside the cooling operation to apply hot water.
  • 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 be able 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 anti-fouling 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 circuit ME-LT 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 Seekastenkühler with TAS device 13 for anti-fouling
  • Fig.1b view of tube sheet 14 with circle segments 15th
  • Fig.5 illustration of the travel of the TAS nozzle 1 in TAS mode
  • Fig.6 Flow chart of a sea chest cooler with integrated TAS
  • 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 port 2 in the space of the sea chest cooler 16, which is formed by cover 12 and tube sheet 14.
  • Figure 1 b 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 (of Figure 1a), to which the TAS nozzle 1 (from Figure 1a) via The TAS device 13 (from FIG. 1 a) works in a targeted manner in order to protect the heat exchanger tubes 20 (from FIG. 1 a) against fouling.
  • the heated water flows via the TAS
  • FIGS 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 Figure 2), which presses on the shaft of the rotary union 6, provides for lifting the TAS nozzle 1, the TAS nozzle 1 in the lifted position during the Continuing to hold in the next position, then the TAS nozzle 1 lowers after reaching the next position and the pressing of the TAS nozzle 1 secured to the tube sheet 14 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, following the circular arrangement of the heat exchanger tubes 20 in the tube sheet 14 and thus creates special sections, which thereby 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 made both radially, as shown in Figure 5, as well as over the entire diameter or in a kind of circular segmental shape.
  • FIG. 6 shows the basic arrangement of the components in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Catching Or Destruction (AREA)
  • Housing For Livestock And Birds (AREA)

Abstract

The invention relates to a sea chest cooler on ships and offshore platforms, comprising an integrated antifouling system for killing barnacles, mussels, and other fouling organisms by means of an overheating process that can be regularly repeated. The aim of the invention is to design a sea chest cooler in such a way that a simple device can automatically protect the sea chest cooler (16) against microorganism fouling both in the actual cooling mode and during a standstill by continuously overheating a defined number of heat exchanger tubes (20) without interrupting the cooling process, if possible using waste heat from the cooling water. Said aim is achieved by arranging the heat exchanger tubes in a circular manner in special sections of the sea chest cooler (16) such that hot water is supplied to individual circular segments of the tube bundle during or outside the cooling process by means of a mechanical device. Said thermal antifouling system (TAS) device (13) comprises a TAS nozzle (1) which rotates in angular steps and separates heat exchanger tubes (20) of the sea chest cooler (16) from the cooling process. The invention has the advantage that the cooler design is adapted to the simultaneous cooling and antifouling function and that the sea chest cooler comprising the integrated TAS device can be protected against fouling by using the waste heat from the cooling water without interrupting the cooling process.

Description

Seekastenkühler mit integriertem Bewuchsschutzsystem Sea chest cooler with integrated antifouling system
Beschreibungdescription
[0001] 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 anti-fouling system barnacles, shells and other fouling organisms are killed as a result of regularly repeatable overheating.
Stand der TechnikState of the art
[0002] 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 and their components has risen rapidly, not least because of the increased water pollution. It is tried internationally by various methods to reduce this growth or avoid.
[0003] 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 DE-PS 19921433 C1, a method and an apparatus is described, which has 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, which are in sea boxes sporadically or constantly in contact with seawater, for ships, offshore platforms, etc. to develop.
[0004] Das Verfahren ist dadurch gekennzeichnet, dass das Seewasser imThe method is characterized in that the seawater in
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.Sea box sealed off from the environment, the sea chest cooler taken out of the cooling mode, used by mechanical switching the high temperature circuit on the protected sea chest cooler this even for localized, short-term and regularly repeatable heating of the enclosed lake water.
[0005] 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 cleaning mode with blind closed so that the components in the passive sea box are locally limited, short-term and regularly repeatable overheated.
[0006] 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 necessary installation of a flap to close the outlet slots of the sea chest, are necessary. Any maintenance on the closures is often possible only in the dock and could lead to unscheduled interruptions in ship operation.
[0007] 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 DE-PS 102005029988 B3 a device is shown, the task of which is to protect the heat transfer from fouling permanently and effectively, without interrupting the operation of the heat exchanger.
[0008] 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.To be solved this problem in heat exchangers, which consist of a variety of Einzelwärmeübertragern characterized in that the fluid is separated from at least one individual heat exchanger from the actual cooling circuit by movable and positioned on the supply and return ports of the individual heat exchanger funnel. 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.
[0009] Der Nachteil der Vorrichtung besteht darin, dass die Ein- undThe disadvantage of the device is that the inputs and
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.Outlet funnels in different chambers of the radiator cap must be mechanically interconnected so that the inlet funnel can be positioned above the inlet and the outlet funnel over the outlet of the same Einzelwärmeübertragers to dissolve out of the cooling circuit and thus protect in a separate heating circuit against fouling. The technical effort for the mechanical coupling of the two funnels together seems very complicated and prone to failure. Furthermore, the device for heating described in DE-PS 102005029988 B3 uses a separate electric heater, which leads to an additional energy requirement of up to an estimated 60KW and thus should be avoided for reasons of sustainability and environmental protection.
Darstellung der ErfindungPresentation of the invention
[0010] 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 continuous overheating a defined number of rows of tubes fully automatically both in the actual Can protect cooling mode as well as at a 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.
[0011] Die Aufgabe wurde erfindungsgemäß entsprechend der Merkmale der Patentansprüche gelöst.The object has been achieved according to the features of the claims.
[0012] 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 - called TAS following - is due to the new design of the tube bundle a almost circular or square arrangement of the heat exchanger tubes 20 special sections created that allow individual circular segments of the tube bundle of the sea chest cooler by a mechanical TAS device during or outside the cooling operation to apply hot water. 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.
[0013] 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 be able 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.
[0014] 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. Kurze Beschreibung der AbbildungenThe advantages of the invention are that the anti-fouling 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 circuit ME-LT 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. Brief description of the illustrations
[0015] 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:
[0016] Fig.1a Seekastenkühler mit TAS-Vorrichtung 13 für BewuchsschutzFIG. 1a Seekastenkühler with TAS device 13 for anti-fouling
Fig.1b Ansicht auf Rohrboden 14 mit Kreissegmenten 15Fig.1b view of tube sheet 14 with circle segments 15th
Fig.1c Draufsicht auf Rohrboden 14Fig.1c top view of tube sheet 14th
Fig.2 Weg des aufgeheizten Wassers bei abgesenkter Düse 1Fig.2 way of the heated water with lowered nozzle. 1
Fig.3 Seitliche Schnittdarstellung der TAS- Vorrichtung 13 mit abgesenkter Düse 13 side sectional view of the TAS device 13 with lowered nozzle. 1
Fig.4 TAS- Vorrichtung 13 mit angehobener Düse 1Fig.4 TAS device 13 with raised nozzle. 1
Fig.5 Darstellung des Fahrweges der TAS-Düse 1 im TAS-BetriebFig.5 illustration of the travel of the TAS nozzle 1 in TAS mode
Fig.6 Flußdiagramm eines Seekastenkühlers mit integriertem TASFig.6 Flow chart of a sea chest cooler with integrated TAS
Ausführung der ErfindungEmbodiment of the invention
[0017] 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.Figure 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 port 2 in the space of the sea chest cooler 16, which is formed by cover 12 and tube sheet 14.
[0018] Figur 1 b 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 1a) gegen Bewuchs zu schützen.Figure 1 b 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 (of Figure 1a), to which the TAS nozzle 1 (from Figure 1a) via The TAS device 13 (from FIG. 1 a) works in a targeted manner in order to protect the heat exchanger tubes 20 (from FIG. 1 a) against fouling.
[0019] Wie in Figur 2 gezeigt, strömt das aufgeheizte Wasser über den TAS-As shown in FIG. 2, the heated water flows via the 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.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 rotary union 6 seals the TAS device 13 to the sea box lid 12 to the outside, passes simultaneously the TAS water to the TAS nozzle 1 on and allows rotational and axial movements of the TAS nozzle. 1
[0020] 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.Figures 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 Figure 2), which presses on the shaft of the rotary union 6, provides for lifting the TAS nozzle 1, the TAS nozzle 1 in the lifted position during the Continuing to hold in the next position, then the TAS nozzle 1 lowers after reaching the next position and the pressing of the TAS nozzle 1 secured to the tube sheet 14 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
[0021] 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 Durchmesseroder in einer Art Kreissegmentform ausgeführt werden.Figure 5 shows the circular arrangement of the heat exchanger tubes 20. The TAS nozzle 1 rotates in angular steps, following the circular arrangement of the heat exchanger tubes 20 in the tube sheet 14 and thus creates special sections, which thereby 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 Mehrflutigen 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 made both radially, as shown in Figure 5, as well as over the entire diameter or in a kind of circular segmental shape.
[0022] Figur 6 zeigt die prinzipielle Anordnung der Komponenten imFIG. 6 shows the basic arrangement of the components in FIG
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. 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, the TAS nozzle 1 is lowered and the heated TAS water flows into the through the TAS nozzle 1 foreclosed 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
1 TAS- Düse1 TAS nozzle
2 Stutzen- Kühlwassereintritt2 connecting piece - cooling water inlet
3 Stutzen Kühlwasseraustritt3 nozzles cooling water outlet
4 Hubeinheit4 lifting unit
5 Drehantrieb Düse5 rotary actuator nozzle
6 Drehdurchführung6 rotary feedthrough
7 Riemen7 straps
8 Erhitztes Wasser8 Heated water
9 Rohrbündel9 tube bundles
10 Absperrventil10 shut-off valve
11 Temperatursensor11 temperature sensor
12 Kühlerdeckel12 radiator cap
13 TAS-Vorrichtung13 TAS device
14 Rohrboden14 tubesheet
15 Kreissegment15 circle segment
16 Seekastenkühler16 sea chest cooler
17 TAS-Umwälzpumpe17 TAS circulating pump
18 TAS-Wärmetauscher18 TAS heat exchangers
19 TAS-Temperaturregelventil19 TAS temperature control valve
20 Wärmetauscherrohre20 heat exchanger tubes
21 Düsenkammer21 nozzle chamber
22 Ventil-Austritt TAS-Wasser 22 Valve outlet TAS water

Claims

Ansprüche claims
1. Seekastenkühler mit integriertem Bewuchsschutzsystem zur Abtötung von Seepocken, Muscheln und anderen Bewuchsorganismen mittels regelmäßig wiederholbarer Überhitzung, dadurch gekennzeichnet, dass die Wärmetauscherrohre (20) des Rohrbündels (9) im Seekastenkühler (16) so angeordnet sind, dass mindestens eine, nahezu kreisrunde oder quadratische Teilfläche des Rohrbodens (14) entsteht, und durch Aufsetzen einer TAS-Düse (1) einer mechanischen TAS-Vorrichtung (13) in der Düsenkammer (21) ein einzelnes Kreissegment (15), bestehend aus mehreren Wärmetauscherrohren (20) des Rohrbündels (9) überdeckt wird, so dass die umgebungsdicht abgeschotteten Wärmetauscherrohre (20) dann durch separat zugeführtes aufgeheiztes Wasser während oder außerhalb des normalen Kühlbetriebes gegen seewasserseitigen Bewuchs geschützt werden.1. Seekastenkühler with integrated anti-fouling system for killing barnacles, shells and other fouling organisms by regularly repeatable overheating, characterized in that the heat exchanger tubes (20) of the tube bundle (9) in the sea chest cooler (16) are arranged so that at least one, almost circular or Square partial surface of the tube bottom (14) is formed, and by placing a TAS nozzle (1) of a mechanical TAS device (13) in the nozzle chamber (21) a single circular segment (15) consisting of a plurality of heat exchanger tubes (20) of the tube bundle ( 9) is covered, so that the environmentally sealed foreclosed heat exchanger tubes (20) are then protected by separately supplied heated water during or outside the normal cooling operation against seawater side vegetation.
2. Seekastenkühler mit integriertem Bewuchsschutzsystem nach Anspruch 1 , dadurch gekennzeichnet, dass die Wärmetauscherrohre (20) eine strukturierte Oberfläche haben und dadurch ein verbesserter Wärmübergang sowie ein erhöhter Anhaftungswiderstand gegen Bewuchs erreicht wird.2. Seebastenkühler with integrated anti-fouling system according to claim 1, characterized in that the heat exchanger tubes (20) have a textured surface and thereby improved heat transfer and increased resistance to fouling attachment is achieved.
3. Seekastenkühler mit integriertem Bewuchsschutzsystem nach Anspruch 1 und3. Seebastenkühler with integrated anti-fouling system according to claim 1 and
2, dadurch gekennzeichnet, dass die TAS-Vorrichtung (13) eine rotierende Vorrichtung ist, um durch Weiterdrehen ein neues Kreissegment (15) aus einzelnen Wärmetauscherrohren (20) zu überdecken und aufzuheizen.2, characterized in that the TAS device (13) is a rotating device to cover by further rotation of a new circle segment (15) of individual heat exchanger tubes (20) and to heat.
4. Seekastenkühler mit integriertem Bewuchsschutzsystem nach Anspruch 1 bis4. Seebastenkühler with integrated anti-fouling system according to claim 1 to
3, dadurch gekennzeichnet, dass eine Drehdurchführung (6) als Teil der TAS- Vorrichtung (13) den Wasserraum im Kühlerdeckel (12) nach außen abdichtet.3, characterized in that a rotary feedthrough (6) as part of the TAS device (13) seals the water space in the radiator cap (12) to the outside.
5. Seekastenkühler mit integriertem Bewuchsschutzsystem nach Anspruch 4, dadurch gekennzeichnet, dass an die Drehdurchführung (6) in der Wasserkammer eine TAS-Düse (1) angebaut und in ihrer äußeren Form einem oder mehreren Kreissegmenten (15) nachgebildet ist. 5. sea chest cooler with integrated anti-fouling system according to claim 4, characterized in that on the rotary feedthrough (6) in the water chamber a TAS nozzle (1) grown and in its outer shape one or more circle segments (15) is modeled.
6. Seekastenkühler mit integriertem Bewuchsschutzsystem nach Anspruch 1 bis6. sea chest cooler with integrated anti-fouling system according to claim 1 to
5, dadurch gekennzeichnet, dass zusätzlich eine Hubeinheit (4) montiert ist, die vor jedem Weiterdrehen der TAS-Vorrichtung (13) die TAS-Düse (1) anhebt und nach dem Weiterdrehen wieder absenkt, und die TAS-Vorrichtung (13) gezielt auf den Rohrboden (14) presst.5, characterized in that in addition a lifting unit (4) is mounted, which raises before each further rotation of the TAS device (13), the TAS nozzle (1) and lowered again after further rotation, and the TAS device (13) targeted pressed on the tube plate (14).
7. Seekastenkühler mit integriertem Bewuchsschutzsystem nach Anspruch 1 bis7. sea chest cooler with integrated anti-fouling system according to claim 1 to
6, dadurch gekennzeichnet, dass das Anheben, Absenken und Anpressen der TAS-Vorrichtung (13) auf den Rohrboden (14) hydraulisch durch einen in die TAS-Düse (1) integrierten Kolben nach dem Teleskopprinzip erfolgt.6, characterized in that the raising, lowering and pressing of the TAS device (13) on the tube plate (14) hydraulically by a in the TAS nozzle (1) integrated piston according to the telescopic principle.
8. Seekastenkühler mit integriertem Bewuchsschutzsystem nach Anspruch 1 bis8. sea chest cooler with integrated anti-fouling system according to claim 1 to
7, dadurch gekennzeichnet, dass die Drehzahl der TAS-Düse (1) der TAS- Vorrichtung (13) durch einen Getriebemotor spezifisch angepasst wird.7, characterized in that the rotational speed of the TAS nozzle (1) of the TAS device (13) is specifically adapted by a geared motor.
9. Seekastenkühler mit integriertem Bewuchsschutzsystem nach Anspruch 1 bis9. sea chest cooler with integrated anti-fouling system according to claim 1 to
8, dadurch gekennzeichnet, dass die Rotation der der TAS-Vorrichtung (13) durch eine in den Wasserstrom eingebaute, nicht näher dargestellte Wasserturbine realisiert wird.8, characterized in that the rotation of the TAS device (13) is implemented by a built-in water flow, not shown water turbine.
10. Seekastenkühler mit integriertem Bewuchsschutzsystem nach Anspruch 1 bis10. Seebastenkühler with integrated anti-fouling system according to claim 1 to
9, dadurch gekennzeichnet, dass mehrere TAS-Vorrichtungen (13) eingebaut sind, diese jeweils von einem eigenen oder einem gemeinsamen Antrieb (10) zeitlich einzeln oder zugleich betrieben werden.9, characterized in that a plurality of TAS devices (13) are installed, these in each case by a separate or a common drive (10) are operated individually or simultaneously.
11. Seekastenkühler mit integriertem Bewuchsschutzsystem nach Anspruch 1 bis11. Seebastenkühler with integrated anti-fouling system according to claim 1 to
10, dadurch gekennzeichnet, dass die TAS-Vorrichtung (13) aus speziellen reibungsmindernden Materialien gefertigt ist.10, characterized in that the TAS device (13) is made of special friction-reducing materials.
12. Seekastenkühler mit integriertem Bewuchsschutzsystem nach Anspruch 1 bis12. Seebastenkühler with integrated anti-fouling system according to claim 1 to
11 , dadurch gekennzeichnet, dass mittels integrierter Mess- und Regelsysteme sowie Stelleinrichtungen die lokale kurzfristige Überhitzung selbsttätig und regelmäßig durchgeführt sowie automatisch überwacht wird.11, characterized in that by means of integrated measuring and control systems and adjusting devices, the local short-term overheating is carried out automatically and regularly and automatically monitored.
13. Seekastenkühler mit integriertem Bewuchsschutzsystem nach Anspruch 1 bis13. sea chest cooler with integrated anti-fouling system according to claim 1 to
12, dadurch gekennzeichnet, dass bei sechs- und mehrflutigen Seekastenkühlern 16 in jeder zumindest jedoch in jeder zweiten Düsenkammer 21 eine separate TAS-Vorrichtung 13 angeordnet ist. 12, characterized in that in six and more flooded sea chest coolers 16 in each but at least in each second nozzle chamber 21, a separate TAS device 13 is arranged.
14. Seekastenkühler mit integriertem Bewuchsschutzsystem nach Anspruch 1 bis 13, dadurch gekennzeichnet, dass die TAS-Düse 1 als ein einzelnes radiales Kreissegment (15), ein Kreissegment (15) über den gesamten Durchmesser oder in einer anderen Kreissegmentform ausgeführt ist. 14. Seebastenkühler with integrated anti-fouling system according to claim 1 to 13, characterized in that the TAS nozzle 1 is designed as a single radial circle segment (15), a circular segment (15) over the entire diameter or in a different 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)

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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

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

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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)
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DE102008029464B4 (en) 2013-02-07
WO2009153251A4 (en) 2011-06-03
JP2011524834A (en) 2011-09-08
JP5431463B2 (en) 2014-03-05
KR20110027699A (en) 2011-03-16
SG192421A1 (en) 2013-08-30
WO2009153251A2 (en) 2009-12-23
EP2303683B1 (en) 2013-04-17
BRPI0914617A2 (en) 2015-12-08
DE102008029464A1 (en) 2010-01-14
CN102089204A (en) 2011-06-08
WO2009153251A3 (en) 2010-12-23
CN102089204B (en) 2014-01-08
ES2416063T3 (en) 2013-07-30
BRPI0914617B1 (en) 2019-12-31

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