EP1192075A1 - Method and device for preventing organism growth on sea-cases and seawater systems on ships, offshore platforms, etc. - Google Patents

Method and device for preventing organism growth on sea-cases and seawater systems on ships, offshore platforms, etc.

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Publication number
EP1192075A1
EP1192075A1 EP00949100A EP00949100A EP1192075A1 EP 1192075 A1 EP1192075 A1 EP 1192075A1 EP 00949100 A EP00949100 A EP 00949100A EP 00949100 A EP00949100 A EP 00949100A EP 1192075 A1 EP1192075 A1 EP 1192075A1
Authority
EP
European Patent Office
Prior art keywords
sea
box
temperature
sea water
water system
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
EP00949100A
Other languages
German (de)
French (fr)
Other versions
EP1192075B1 (en
Inventor
Gunter Höffer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Priority claimed from DE19921433A external-priority patent/DE19921433C1/en
Application filed by Individual filed Critical Individual
Publication of EP1192075A1 publication Critical patent/EP1192075A1/en
Application granted granted Critical
Publication of EP1192075B1 publication Critical patent/EP1192075B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • B63B13/02—Ports for passing water through vessels' sides
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • F01P3/207—Cooling circuits not specific to a single part of engine or machine liquid-to-liquid heat-exchanging relative to marine 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
    • F28D1/04—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 with tubular conduits
    • F28D1/047—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 with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0475—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 with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/06—Cleaning; Combating corrosion
    • F01P2011/063—Cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/06—Cleaning; Combating corrosion
    • F01P2011/066—Combating corrosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2050/00—Applications
    • F01P2050/02—Marine engines
    • F01P2050/06—Marine engines using liquid-to-liquid heat exchangers

Definitions

  • the invention relates to a method and a device for avoiding fouling in sea boxes, in particular sea box coolers, such as those used on ships, offshore platforms, etc., for protecting components such as filters, fittings, pipes, heat exchangers, pumps, sea box coolers inter alia, which are in contact with sea water sporadically or continuously in open sea boxes and sea water systems, for the targeted local and short-term overheating of the enclosed sea water by using the waste heat contained in the engine cooling water according to claim 1.
  • sea box coolers such as those used on ships, offshore platforms, etc.
  • components such as filters, fittings, pipes, heat exchangers, pumps, sea box coolers inter alia, which are in contact with sea water sporadically or continuously in open sea boxes and sea water systems, for the targeted local and short-term overheating of the enclosed sea water by using the waste heat contained in the engine cooling water according to claim 1.
  • DE PN 31 23 682 AI describes a vegetation-proof metallic material with an alpha single-phase structure, consisting of an alloy with 5-30% by weight - Mn, at least one element such as Sn with up to 5% by weight.
  • the disadvantage is that this is not a standard steel in shipbuilding and therefore leads to considerable price increases for the ship.
  • anti-fouling or antifouling protective layers are formed, for example, by plasma polymerization in accordance with DE PN 3522 817, or in accordance with DE PN 2756 495, a silicone rubber is applied to metallic surfaces. Contamination of the lake water with chemical substances is considered a disadvantage here.
  • US Pat. No. 3,309,167 describes a method for preventing growth, in which the growth-preventing effect of a temperature increase which is to be repeated regularly is used.
  • the growth-preventing effect of a temperature increase which is to be repeated regularly is used.
  • the u.a. Invention which aims to heat the enclosed water in temporarily closed circuits by engine heat, is heated in the US patent mentioned, the outwardly adjacent surface to be protected directly by an electrically operated heating element, which requires an additional expenditure of energy.
  • US Pat. No. 3,650,677 relates to a method for sea boxes for temporarily overlaying the inner walls by adding vegetable oils and fats, especially during the winter break, in order to prevent destruction caused by ice formation and to prevent corrosion.
  • the higher temperatures mentioned in the patent refer to the heating of the oils and fats for spraying in the sea tank or to their removal at the end of the winter break. There is no discernible reference to the prevention of fouling. Vegetation usually does not start in winter when there is a risk of ice formation, but in late spring at temperatures above 10 ° C.
  • the stated invention is based on the object of an effective and environmentally friendly method and a device for preventing and preventing fouling on surfaces of pipelines, filters, heat exchangers, fittings, pumps, sea case coolers which come into contact with sea water and which are sporadically or constantly in contact with sea boxes Seawater is to be developed, which is easy to use and install at low cost, is easy to maintain and operate, has low operating costs and enables vegetation protection without the use of toxins.
  • Sea case coolers for engine cooling water are coated with an antifouling paint, which, however, only offers protection against fouling for a short time.
  • the so-called low-temperature sea chest coolers with an engine cooling water inlet temperature of approx. 45 ° C offer the larvae of barnacles, mussels and other ideal growth conditions, so that the coolers are already behind their cooling capacity can be extremely limited due to growth in a short time and, for safety reasons, be designed with an area reserve> 30%.
  • the advantages of the invention are that by preventing growth on the sea case cooler, this can transfer larger cooling capacities with the same size by reducing the cooling surface, or build sea case coolers with comparable performance by approx. 20% smaller and thus be placed more easily in the often very small sea boxes can.
  • the minimized size and the possible use of normal steel for the tube bundle ensure a significant cost reduction for the sea case cooler itself. This means that there may be no need for reserve coolers.
  • the energy required to heat up the enclosed sea water is applied by the high-temperature cooling water of the main engine or the diesel generator cooling water.
  • the complete sea chest with all internals can be preserved with the same coating system, so that the complex coating of the CuNilO Fe tube bundle and the associated problems of electrolytic corrosion after damage to the coating of the tube bundle are eliminated.
  • Fig. 1 Basic structure of a sea case with lockable inlet and outlet slots.
  • Fig. 2 Sea case with closed outlet slots
  • Fig. 3 Sea chest blind for closing the inlet slots
  • Fig. 4 like Fig. 1, combination cooler, low-temperature sea case cooler with integrated high-temperature sea case cooler
  • Fig. 5 Scheme of a high temperature and low temperature circuit with an additional external heat exchanger
  • Fig. 6 Rollable elastic plate for closing the inlet and outlet slots
  • Fig. 7 Circuit structure of the sea boxes in the mutual sea and cleaning operation
  • the high-temperature cooling water of the main engine 13 or alternatively the cylinder cooling water of the diesel generators which is switched to the low-temperature cooling water circuit with the sea box cooler 2 by means of changeover fittings, is used.
  • Fig.l shows the basic structure of a sea case 1 with low-temperature sea case cooler 2, a sea case blind 4 with a blind box 12 for blocking the outlet slots 3.
  • the inlet slots 8 are blocked analogously (Sea operation) the low-temperature engine cooling water circulates at approx. 45 ° C through the low-temperature sea case cooler 2 and the sea water flows at max. 32 ° C through the inlet slots 8 into the sea box 1.
  • This sea water cools the engine cooling water to a minimum of 36 ° C via the low-temperature sea case cooler 2 and leaves the sea case 1 via the outlet slots 3.
  • the larvae of the growth organisms get permanently into the sea case 1, which then and reed lay times with low current in the sea box 1 and its internals.
  • the guide rail 11 is on the inside of the outer skin of the sea case
  • Fig. 3 shows the arrangement of the low-temperature sea chest cooler
  • FIG. 4 shows a possibility of direct heating of the sea tank 1 via the high-temperature tube bundle 9 of the high-temperature circuit or the cooling water circuit of the diesel generators with an inlet temperature of at least 70 ° C. which is integrated in the so-called combination cooler Construction takes place according to FIG. 1.
  • the local and temporary short-term overheating with closed inlet and outlet slots 8; 3 takes over the integrated high-temperature tube bundle 9 in the same way as described below under Fig.5.
  • Fig. 5 shows the P&ID diagram for an engine with separate high-temperature and low-temperature cooling water circuits.
  • the high-temperature engine cooling water is cooled back via the plate heat exchanger 14 in normal operation by the low-temperature cooling water, which in turn absorbs its amount of heat via the low-temperature sea case cooler 2 to the sea water when the inlet and outlet slots 8 are open; 3 leads away.
  • the overheating operation for the low-temperature sea case cooler 2 is started to the minimum 60 ° C. necessary to kill the growth organisms.
  • the bypass of the temperature control valve 16 is completely closed.
  • the high-temperature cooling water heats up the low-temperature cooling water via the plate heat exchanger 14.
  • the sea water in the sea box 1 is briefly overheated locally for a certain period by the low-temperature cooling water circulating in the closed circuit to at least 60 ° C. via the low-temperature sea box cooler 2, so that the growth organisms are killed.
  • FIG. 5 also shows a proposal as to how the heating-up time can be shortened by means of a heat exchanger 15 additionally integrated in the low-temperature circuit and heated by steam, thermal oil or electrical energy.
  • Fig. 6 shows a further embodiment as a displaceable, to the outer skin ontur adaptable elastic plate 17 as a waterproof closure device for the inlet and outlet slots 8; 3.
  • the static pressure acting on the plate 17 from the outside presses the plate 17 against the outer skin designed as a double shell 18 in this area of the sea case 1.
  • FIG. 7 shows the sea water system which consists of the sea boxes 1A; 1B and are operatively connected via pipes and / or ducts with built-in shut-off valves 21; 22, pumps 20 and the mixing tank 19.
  • the seawater system by closing the blind 4B in the sea box IB and opening the associated shut-off valve 22B and the valve 22A in the active sea box 1A into the passive subsystem B -cleaning mode- and the active subsystem A -sea mode-.
  • the Seekasten IB with the associated connecting pipelines, fittings 21B; 22B, box coolers 2B pumps 20B are locally limited and briefly thermally overheated and thus protected against growth by microorganisms, macro organisms and their larvae.
  • this subsystem After cleaning operation in the sea box IB, this subsystem is switched to sea mode by opening the blind 4B.
  • the sea crate 1A which was previously active in maritime operations, is now being Procedure switched to cleaning operation.
  • Subsystem A is now also limited locally to prevent fouling and briefly overheated thermally.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Catching Or Destruction (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Revetment (AREA)
  • Ship Loading And Unloading (AREA)

Abstract

The invention relates to a method and a device on ships, offshore-platforms, etc. for protecting against organism growth in complete seawater systems, operated on the basis of briefly raising the temperature of a volume of water (1) which is isolated by a mechanical closure system (4, 12). The brief temperature increase destroys the growth of organisms or their larvae without the need for toxic, environmentally damaging substances. Once the closure system has been opened, the normal cooling operation is resumed. The waste heat from the motor is used to raise the temperature for short periods of time. The mechanical closure of a sea-case is described as an application example. In cooling systems, comprising several circuits, joined by a mixing tank, each sub-circuit can be heated separately for a brief period, using the assembly of different heat exchangers and the integrated control and regulatory systems, thus preventing organism growth.

Description

Verfahren und Vorrichtung zur Vermeidung von Bewuchs in Seekästen und Seewassersystemen auf Schiffen, Offshore- plattfor en, etc.Method and device for preventing fouling in sea boxes and sea water systems on ships, offshore platforms, etc.
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Vermeidung von Bewuchs in Seekästen, insbesondere Seekästenkühlern, wie sie auf Schiffen, Offshore-Plattformen, etc. zum Einsatz kommen, zum Schutz von Bauteilen, wie Filter, Armaturen, Rohrleitungen, Wärmetauscher, Pumpen, Seekastenkühler u.a., die sporadisch oder ständig in offenen Seekästen und Seewassersystemen mit Seewasser in Berührung sind, zur gezielten lokalen und kurzfristigen Überhitzung des eingeschlossenen Seewassers durch Nutzung der im Motorkühlwasser enthaltenen Abwärme gemäß dem Patentanspruch 1.The invention relates to a method and a device for avoiding fouling in sea boxes, in particular sea box coolers, such as those used on ships, offshore platforms, etc., for protecting components such as filters, fittings, pipes, heat exchangers, pumps, sea box coolers inter alia, which are in contact with sea water sporadically or continuously in open sea boxes and sea water systems, for the targeted local and short-term overheating of the enclosed sea water by using the waste heat contained in the engine cooling water according to claim 1.
Der Bewuchs an Schiffen, Schiffsteilen und in Rohrleitungssystemen sowie deren Komponenten ist nicht zuletzt durch die verstärkte Gewässerverschmutzung deutlich gestiegen. Es wird international durch verschiedene Methoden versucht, diesen Bewuchs zu reduzieren bzw. zu vermeiden.The growth on ships, parts of ships and in piping systems as well as their components has increased significantly, not least due to the increased water pollution. Various methods are used internationally to try to reduce or avoid this growth.
1. In der DE PN 31 23 682 AI wird ein bewuchssicherer metallischer Werkstoff mit Alpha- Einphasengefüge, bestehend aus einer Legierung mit 5- 30 Gew.%- Mn, mindestens einem Element, wie Sn mit bis zu 5 Gew.% beschrieben. Der Nachteil ist, daß es sich hier um keinen Standardstahl im Schiffbau handelt und somit zur erheblichen Verteuerung des Schiffes führt.1. DE PN 31 23 682 AI describes a vegetation-proof metallic material with an alpha single-phase structure, consisting of an alloy with 5-30% by weight - Mn, at least one element such as Sn with up to 5% by weight. The disadvantage is that this is not a standard steel in shipbuilding and therefore leads to considerable price increases for the ship.
2. Ein ähnlicher Ansatz wird nach Patent DE PN 36 28 150 AI gewählt, indem ein haftendes Blech, ausgeführt als CuNi- Legierungsplatte, mit einer Grundierung versehen wird, so daß eine selbsklebende Adhäsionsschicht gebildet wird. CuNi- Legierungen sind erheblich teurere Werkstoffe als Stahl.2. A similar approach is chosen according to patent DE PN 36 28 150 AI, in that an adhesive sheet, designed as a CuNi alloy plate, is provided with a primer, so that a self-adhesive adhesive layer is formed. CuNi alloys are considerably more expensive materials than steel.
3. Die Außenhaut von Seeschiffen wird derzeit durch selbstpolierende Antifouling-Anstrichsysteme vor Bewuchs geschützt. In dieser Verfahrensgruppe werden beispielsweise bewuchsabweisende oder fraßhemmende Schutzschichten durch Plasmapolymerisation gemäß DE PN 3522 817 ausgebildet oder nach DE PN 2756 495 wird ein Silikonkautschuk auf metallische Oberflächen gebracht. Als nachteilig wird hier die Kontaminierung des Seewassers mit chemischen Substanzen angesehen.3. The outer skin of seagoing vessels is currently protected against fouling by self-polishing antifouling coating systems. In this group of processes, anti-fouling or antifouling protective layers are formed, for example, by plasma polymerization in accordance with DE PN 3522 817, or in accordance with DE PN 2756 495, a silicone rubber is applied to metallic surfaces. Contamination of the lake water with chemical substances is considered a disadvantage here.
4. Kathodenschutzanlagen, bei denen Cu- Ionen aus Opferanoden infolge eines elektochemischen Potentials herausgelöst werden, stellen eine weitere jedoch sehr kostenintensive und toxische Methode zur Bewuchsverhinderung dar. 5. Gemäß DE PN 4109 197 wird an einen speziellen Antifouling- schutzanstrich eine in Polarität und Stärke variable Spannung angelegt, die zur Ausbildung einer dünnen bewuchshemmenden Wasserschicht mit wechselnden pH-Werten führen soll. Der erforderliche mehrschichtige Farbaufbau ist an glatten Flächen besser zu applizieren als an Kühlsystemen und daher eher für großflächige Schiffsaußenwände geeignet.4. Cathode protection systems in which Cu ions are released from sacrificial anodes as a result of an electro-chemical potential represent another, however, very cost-intensive and toxic method for preventing growth. 5. According to DE PN 4109 197, a voltage that is variable in polarity and strength is applied to a special antifouling protective coating, which should lead to the formation of a thin, fouling-inhibiting water layer with changing pH values. The required multi-layer color structure is easier to apply to smooth surfaces than to cooling systems and is therefore more suitable for large ship outer walls.
6. In der US-Patentschrift 3 309 167 wird ein Verfahren zur Bewuchsverhinderung beschrieben, bei dem die bewuchsverhindernde Wirkung einer regelmäßig zu wiederholenden Temperaturerhöhung genutzt wird. Im Unterschied zu der u.a. Erfindung, die auf die Erwärmung des eingeschlossenen Wassers in zeitweise geschlossenen Kreisläufen durch Motorwärme abzielt, wird im genannten US-Patent die nach außen angrenzende, zu schützende Oberfläche direkt von einem elektrisch betriebenen Heizelement erwärmt, was einen zusätzlichen Energieaufwand erfordert.6. US Pat. No. 3,309,167 describes a method for preventing growth, in which the growth-preventing effect of a temperature increase which is to be repeated regularly is used. In contrast to the u.a. Invention, which aims to heat the enclosed water in temporarily closed circuits by engine heat, is heated in the US patent mentioned, the outwardly adjacent surface to be protected directly by an electrically operated heating element, which requires an additional expenditure of energy.
7. Das US-Patent 3 650 677 betrifft ein Verfahren für Seekästen zur zeitweiligen Überschichtung der Innenwände durch Zugabe pflanzlicher Öle und Fette, insbesondere während der Winterpause, um Zerstörungen durch Eisbildung zu verhindern und Korrosion zu unterbinden. Die in der Patentschrift genannten höheren Temperaturen beziehen sich auf die Erwärmung der Öle und Fette für das Versprühen im Seekasten bzw. auf deren Entfernung am Ende der Winterpause. Ein Bezug zur Verhinderung von Bewuchs ist nicht erkennbar. Bewuchs setzt sich gewöhlich nicht im Winter bei Gefahr von Eisbildung , sondern im späten Frühjahr bei Temperaturen ab 10 °C an.7. US Pat. No. 3,650,677 relates to a method for sea boxes for temporarily overlaying the inner walls by adding vegetable oils and fats, especially during the winter break, in order to prevent destruction caused by ice formation and to prevent corrosion. The higher temperatures mentioned in the patent refer to the heating of the oils and fats for spraying in the sea tank or to their removal at the end of the winter break. There is no discernible reference to the prevention of fouling. Vegetation usually does not start in winter when there is a risk of ice formation, but in late spring at temperatures above 10 ° C.
Der angegebenen Erfindung liegt die Aufgabe zugrunde, ein wirksames und umweltfreundliches Verfahren und eine Vorrichtung zur Bewuchshemmung und -Vermeidung an mit Seewasser in Kontakt tretenden Oberflächen von Rohrleitungen, Filtern, Wärmetauschern, Armaturen, Pumpen, Seekastenkühlern, die in Seekästen sporadisch oder ständig in Berührung mit Seewasser sind, zu entwickeln, die einfach und mit geringen Kosten zu benutzen und zu installieren sind, sich durch Wartungs- und Bedienerfreundlichkeit auszeichnen, nur geringe Betriebskosten verursachen und einen Bewuchsschutz ohne die Verwendung von Giftstoffen ermöglicht.The stated invention is based on the object of an effective and environmentally friendly method and a device for preventing and preventing fouling on surfaces of pipelines, filters, heat exchangers, fittings, pumps, sea case coolers which come into contact with sea water and which are sporadically or constantly in contact with sea boxes Seawater is to be developed, which is easy to use and install at low cost, is easy to maintain and operate, has low operating costs and enables vegetation protection without the use of toxins.
Erfindungsgemäß wird diese Aufgabe durch die in den Patentansprüchen 1 bis 15 aufgeführten Merkmale gelöst.According to the invention, this object is achieved by the features listed in claims 1 to 15.
Seekastenkühler für Motorenkühlwasser werden mit einem Antifoulinganstrich versehen, der jedoch nur kurzzeitig Bewuchsschutz bietet. Speziell die sogenannten Niedrigtemperatur-Seekastenkühler mit ca. 45°C Motorkühlwassereintritts- te peratur bieten den Larven der Seepocken , Muscheln u.a. ideale Wachstumsbedingungen, so dass die Kühler schon nach kurzer Zeit durch Bewuchs in ihrer Kühlleistung extrem eingeschränkt sein können und aus Sicherheitsgründen mit einer Flächenreserve > 30% ausgelegt werden.Sea case coolers for engine cooling water are coated with an antifouling paint, which, however, only offers protection against fouling for a short time. In particular, the so-called low-temperature sea chest coolers with an engine cooling water inlet temperature of approx. 45 ° C offer the larvae of barnacles, mussels and other ideal growth conditions, so that the coolers are already behind their cooling capacity can be extremely limited due to growth in a short time and, for safety reasons, be designed with an area reserve> 30%.
Hochtemperatur-Seekastenkühler mit Motorkühlwassereintritt von ca. 75- 90°C werden demgegenüber nicht oder kaum von den Bewuchsorganismen besiedelt. Untersuchungen haben gezeigt, daß der Bewuchs einerseits durch das Wirken sehr großer Scherkräfte infolge hoher Strömungsgeschwindigkeiten oder durch eine örtlich und zeitlich begrenzte, jedoch in regelmäßigen Abständen zu wiederholende kurzfristige Überhitzung dauerhaft verhindert werden kann. Bei letzterem ist Voraussetzung für die ökonomische Realisierung einer zeitweisen Überhitzung des Wassers eine weitgehende Trennung des zu erhitzenden Wassers vom Umgebungswasser.In contrast, high-temperature sea case coolers with an engine cooling water inlet of approx. 75-90 ° C are not or hardly colonized by the growth organisms. Studies have shown that the growth can be prevented on the one hand by the action of very high shear forces as a result of high flow velocities or by a short-term overheating which is localized and limited in time but which must be repeated at regular intervals. In the latter case, a prerequisite for the economical realization of a temporary overheating of the water is the extensive separation of the water to be heated from the surrounding water.
Die Vorteile der Erfindung bestehen darin, daß durch die Bewuchsverhinderung am Seekastenkühler dieser durch die Reduzierung der Kühlfläche größere Kühlleistungen bei gleicher Baugröße übertragen kann bzw. Seekastenkühler bei vergleichbarer Leistung um ca. 20% kleiner gebaut und somit leichter in den oftmals sehr kleinen Seekästen plaziert werden können. Die minimierte Baugröße und der wieder mögliche Einsatz von normalem Stahl für das Rohrbündel sorgen für eine deutliche Kostenreduzierung beim Seekastenkühler selbst. So kann auf eventuell vorgesehene Reservekühler verzichtet werden. Die zum Aufheizen des eingeschlossenen Seewassers notwendige Energie wird durch das Hochtemperaturkühlwasser des Hauptmotors bzw. des Dieselgeneratorkühlwassers aufgebracht. Der komplette Seekasten mit allen Einbauten kann mit demselben Beschichtungssystem konserviert werden, so dass die aufwendige Beschichtung des CuNilO Fe-Rohrbündels und die damit verbundenen Probleme der elektrolytischen Korrosion nach Beschädigung der Beschichtung des Rohrbündels entfallen.The advantages of the invention are that by preventing growth on the sea case cooler, this can transfer larger cooling capacities with the same size by reducing the cooling surface, or build sea case coolers with comparable performance by approx. 20% smaller and thus be placed more easily in the often very small sea boxes can. The minimized size and the possible use of normal steel for the tube bundle ensure a significant cost reduction for the sea case cooler itself. This means that there may be no need for reserve coolers. The energy required to heat up the enclosed sea water is applied by the high-temperature cooling water of the main engine or the diesel generator cooling water. The complete sea chest with all internals can be preserved with the same coating system, so that the complex coating of the CuNilO Fe tube bundle and the associated problems of electrolytic corrosion after damage to the coating of the tube bundle are eliminated.
Abschließend ist noch die prinzipielle Nachrüstbarkeit dieses Verschlussmechanismus auch für bereits fahrende Schiffe zu erwähnen.Finally, the principle that this locking mechanism can be retrofitted should also be mentioned for ships that are already sailing.
Die Erfindung wird nachfolgend an mehreren Ausführungsbei- spielen näher erläutert. Es zeigen:The invention is explained in more detail below using several exemplary embodiments. Show it:
Fig. 1: Prinzipieller Aufbau eines Seekastens mit verschließbaren Ein- und Auslassschlitzen Fig. 2: Seekasten mit verschlossenen AuslassschlitzenFig. 1: Basic structure of a sea case with lockable inlet and outlet slots. Fig. 2: Sea case with closed outlet slots
Fig. 3: Seekastenjalousie zum Verschluss der EinlassschlitzeFig. 3: Sea chest blind for closing the inlet slots
Fig. 4: wie Fig. 1, Kombikühler, Niedrigtemperatur- Seekastekühler mit integriertem Hochtemperatur-SeekastenkühlerFig. 4: like Fig. 1, combination cooler, low-temperature sea case cooler with integrated high-temperature sea case cooler
Fig. 5: Schema eines Hochtemperatur- und Niedrigtemperatur- Kreises mit zusätzlichem externem Wärmetauscher Fig. 6: Abrollbare elastische Platte zum Verschluss der Ein- und AuslassschlitzeFig. 5: Scheme of a high temperature and low temperature circuit with an additional external heat exchanger Fig. 6: Rollable elastic plate for closing the inlet and outlet slots
Fig. 7: Schaltungsaufbau der Seekästen im wechselseitigen See- und ReinigungsbetriebFig. 7: Circuit structure of the sea boxes in the mutual sea and cleaning operation
Für die örtlich begrenzte Aufheizung des Seewassers in einem geschlossenen Seekasten 1 wird das Hochtemperaturkühlwasser des Hauptmotors 13 oder alternativ das Zylinderkühlwasser der Dieselgeneratoren, das mittels Umschaltarmaturen auf den Niedrigtemperaturkühlwasserkreislauf mit dem Seekastenkühler 2 geschaltet wird, genutzt.For the locally limited heating of the sea water in a closed sea box 1, the high-temperature cooling water of the main engine 13 or alternatively the cylinder cooling water of the diesel generators, which is switched to the low-temperature cooling water circuit with the sea box cooler 2 by means of changeover fittings, is used.
Fig.l zeigt den prinzipiellen Aufbau eines Seekastens 1 mit Niedrigtemperatur-Seekastenkühler 2, einer Seekastenjalousie 4 mit Jalousienkasten 12 zur Absperrung der Auslassschlitze 3. Analog erfolgt die Absperrung der Einlassschlitze 8. Weitere Einbauten sind Entlüftung 5, Spülanschluss 6, Zinkanode 7. Im Normalbetrieb (Seebetrieb) zirkuliert das Niedrigtemperatur- Motorkühlwasser mit ca. 45°C durch den Niedrig- temperatur-Seekastenkühler 2 und das Seewasser strömt mit max. 32°C durch die Einlassschlitze 8 in den Seekasten 1 hinein. Dieses Seewasser kühlt das Motorkühlwasser über den Niedrigtemperatur-Seekastenkühler 2 auf minimal 36°C ab und verläßt den Seekasten 1 über die Auslassschlitze 3. Mit dem Seewasser gelangen permanent die Larven der Bewuchsorganismen in den Seekasten 1, die sich dann während der Revierfahrten, Hafen- und Reedeliegezeiten bei geringer Strömung im Seekasten 1 und seinen Einbauten anlagern. Im Seekasten 1 werden jetzt erfindungsgemäss die Einlass- und Auslassschlitze 8; 3 durch die Seekastenjalousie 4 geschlossen. Unter besonders günstigen Temperaturverhältnissen und Einbaubedingungen kann der Verschluss der Auslassschlitze ausreichen.Fig.l shows the basic structure of a sea case 1 with low-temperature sea case cooler 2, a sea case blind 4 with a blind box 12 for blocking the outlet slots 3. The inlet slots 8 are blocked analogously (Sea operation) the low-temperature engine cooling water circulates at approx. 45 ° C through the low-temperature sea case cooler 2 and the sea water flows at max. 32 ° C through the inlet slots 8 into the sea box 1. This sea water cools the engine cooling water to a minimum of 36 ° C via the low-temperature sea case cooler 2 and leaves the sea case 1 via the outlet slots 3. With the sea water, the larvae of the growth organisms get permanently into the sea case 1, which then and reed lay times with low current in the sea box 1 and its internals. According to the invention, the inlet and outlet slots 8; 3 closed by the sea chest blind 4. Under particularly favorable temperature conditions and installation conditions, the closure of the outlet slots can be sufficient.
Fig.2 zeigt am Beispiel der Absperrung für die Auslassschlitze 3 den Aufbau der Seekastenjalousie 4, bestehend aus dem Antrieb 10, dem Jalousienkasten 12 und den Lamellen. Die Führungsschiene 11 ist auf der Innenseite der Außenhaut des Seekastens2 shows the construction of the sea-box blind 4, consisting of the drive 10, the blind box 12 and the slats, using the example of the shut-off for the outlet slots 3. The guide rail 11 is on the inside of the outer skin of the sea case
1 montiert, mit den notwendigen Aussteifungen und bei Bedarf mit einer umlaufenden Dichtung versehen, um die Wasserdichtigkeit zu erreichen. Über die Entlüftung 5 erfolgt der Druckausgleich bei durch die Seekastenjalousie 4 verschlossenen Ein- und Auslassschlitzen 8; 3.1 assembled, provided with the necessary stiffeners and, if necessary, with a circumferential seal to achieve watertightness. The pressure equalization takes place via the vent 5 when the inlet and outlet slots 8 are closed by the sea-box blind 4; Third
Fig.3 zeigt die Anordnung vom Niedrigtemperatur-SeekastenkühlerFig. 3 shows the arrangement of the low-temperature sea chest cooler
2 über den Einlassschlitzen 8 und die Seekastenjalousie 4 zum Verschluss der Ein- und Auslassschlitze 8; 3.2 over the inlet slots 8 and the sea-box blind 4 for closing the inlet and outlet slots 8; Third
Fig.4 stellt eine Möglichkeit der direkten Aufheizung des Seekastens 1 über das in den sogenannten Kombi-Kühler integrierte Hochtemperatur-Rohrbündel 9 des Hochtemperaturkreises oder des Kühlwasserkreises der Dieselgeneratoren mit mindestens 70°C Eintrittstemperatur dar. Der prinzipielle Aufbau erfolgt gemäß Figur 1. Die lokale und zeitlich begrenzte kurzfristige Überhitzung bei geschlossenen Ein- und Auslassschlitzen 8; 3 übernimmt hier das integrierte Hochtemperatur-Rohrbündel 9 in der gleichen Weise, wie nachfolgend unter Fig.5 beschrieben.4 shows a possibility of direct heating of the sea tank 1 via the high-temperature tube bundle 9 of the high-temperature circuit or the cooling water circuit of the diesel generators with an inlet temperature of at least 70 ° C. which is integrated in the so-called combination cooler Construction takes place according to FIG. 1. The local and temporary short-term overheating with closed inlet and outlet slots 8; 3 takes over the integrated high-temperature tube bundle 9 in the same way as described below under Fig.5.
Fig.5 zeigt das R&I-Schema für einen Motor mit separatem Hochtemperatur- und Niedrigtemperatur-Kühlwasserkreis. Das Hochtemperatur-Motorkühlwasser wird über den Plattenwärmetauscher 14 im Normalbetrieb durch das Niedrigtemperatur- Kühlwasser zurückgekühlt, welches seinerseits wiederum seine aufgenommene Wärmemenge über den Niedrigtemperatur-Seekastenkühler 2 an das Seewasser bei geöffneten Ein- und Auslassschlitzen 8; 3 abführt.Fig. 5 shows the P&ID diagram for an engine with separate high-temperature and low-temperature cooling water circuits. The high-temperature engine cooling water is cooled back via the plate heat exchanger 14 in normal operation by the low-temperature cooling water, which in turn absorbs its amount of heat via the low-temperature sea case cooler 2 to the sea water when the inlet and outlet slots 8 are open; 3 leads away.
Im Hafen oder auf Reede wird nach Abschaltung des Hauptmotors 13 mit dem Überhitzungsbetrieb für den Niedrigtemperatur-Seekastenkühler 2 auf die zur Abtötung der Bewuchsorganismen notwendigen minimal 60°C begonnen. Der By-Pass des Temperaturregelventils 16 wird vollständig geschlossen. So heizt das Hochtemperatur-Kühlwasser über den Plattenwärmetauscher 14 das Niedrigtemperatur-Kühlwasser auf. Das im Seekasten 1 befindliche Seewasser wird durch das im geschlossenen Kreislauf zirkulierende Niedrigtemperatur-Kühlwasser auf mindestens 60°C über den Niedrigtemperatur-Seekastenkühler 2 kurzfristig für eine bestimmte Dauer lokal überhitzt, so dass die Bewuchsorganismen abgetötet werden.In the port or in the roadstead, after the main motor 13 has been switched off, the overheating operation for the low-temperature sea case cooler 2 is started to the minimum 60 ° C. necessary to kill the growth organisms. The bypass of the temperature control valve 16 is completely closed. Thus, the high-temperature cooling water heats up the low-temperature cooling water via the plate heat exchanger 14. The sea water in the sea box 1 is briefly overheated locally for a certain period by the low-temperature cooling water circulating in the closed circuit to at least 60 ° C. via the low-temperature sea box cooler 2, so that the growth organisms are killed.
Nach Öffnen der verschlossenen Ein- und/oder Auslassschlitze 8; 3 erfolgt bei Bedarf über den Spülanschluss 5 ein kurzzeitiges Spülen des Seekastens 1, und der Niedigtemperaur- Seekastenkühler 2 wird durch die Durchführung der o.g. Maßnahmen in umgekehrter Reihenfolge wieder in den Normalbetrieb zurückgeführt.After opening the closed inlet and / or outlet slots 8; 3, if necessary, briefly rinsing the sea case 1 via the rinsing connection 5, and the low-temperature sea case cooler 2 is carried out by performing the above-mentioned. Measures in reverse order are returned to normal operation.
Fig.5 zeigt weiterhin einen Vorschlag, wie durch einen zusätzlich in den Niedrigtemperatur-Kreislauf integrierten und durch Dampf, Thermalöl oder Elektroenergie beheizten Wärmetauscher 15 die Aufheizzeit verkürzt werden kann.FIG. 5 also shows a proposal as to how the heating-up time can be shortened by means of a heat exchanger 15 additionally integrated in the low-temperature circuit and heated by steam, thermal oil or electrical energy.
Fig. 6 stellt ein weiters Ausführungsbeispiel als verschiebbare, an die Außenhaut ontur des Schiffes anpassungsfähige elastische Platte 17 als wasserdichte Verschlußvorrichtung für die Ein- und Auslassschlitze 8; 3 dar. Der von außen auf die Platte 17 wirkende statische Druck preßt die Platte 17 an die in diesem Bereich des Seekastens 1 als Doppelhülle 18 ausgeführte Außenhaut.Fig. 6 shows a further embodiment as a displaceable, to the outer skin ontur adaptable elastic plate 17 as a waterproof closure device for the inlet and outlet slots 8; 3. The static pressure acting on the plate 17 from the outside presses the plate 17 against the outer skin designed as a double shell 18 in this area of the sea case 1.
Figur 7 zeigt das Seewassersystem, das aus den Seekästen 1A; 1B besteht und über Rohrleitungen und/oder Kanäle mit eingebauten Absperrarmaturen 21;22, Pumpen 20 und dem Mischtank 19 wirkungsverbunden sind. Im Seebetrieb sind die Armaturen 21; 22 und die Jalousien 4A;4B in den Seekästen 1A;1B geöffnet.FIG. 7 shows the sea water system which consists of the sea boxes 1A; 1B and are operatively connected via pipes and / or ducts with built-in shut-off valves 21; 22, pumps 20 and the mixing tank 19. The fittings 21; 22 and the blinds 4A; 4B in the sea boxes 1A; 1B opened.
Im Hafen oder auf Reede, wenn reduzierte Schiffsgeschwindigkeit gefahren wird, oder während der Liegezeit wird das Seewasser- system durch das Schließen der Jalousie 4B im Seekasten IB und das Öffnen der dazugehörigen Absperrarmatur 22B sowie der Armatur 22A im aktiven Seekasten 1A in das passive Teilsystem B -Reinungsbetrieb- und das aktive Teilsystem A -Seebetrieb- aufgeteilt. Jetzt werden der Seekasten IB mit den dazugehörigen Verbindungsrohrleitungen, Armaturen 21B;22B, Kastenkühlern 2B Pumpen 20B lokal begrenzt und kurzeitig thermisch überhitzt und somit vor Bewuchs durch Mikroorganismen, Makrorganismen und deren Larven geschützt.In the harbor or on the roadstead, if the ship's speed is reduced, or during the mooring period, the seawater system by closing the blind 4B in the sea box IB and opening the associated shut-off valve 22B and the valve 22A in the active sea box 1A into the passive subsystem B -cleaning mode- and the active subsystem A -sea mode-. Now the Seekasten IB with the associated connecting pipelines, fittings 21B; 22B, box coolers 2B pumps 20B are locally limited and briefly thermally overheated and thus protected against growth by microorganisms, macro organisms and their larvae.
Nach beendetem Reinigungsbetrieb im Seekasten IB wird dieses Teilsystem durch Öffnen der Jalousie 4B auf Seebetrieb umgestellt. Der vorher im Seebetrieb aktive Seekasten 1A wird nun gemäß o.a. Verfahrensweise in den Reinigungsbetrieb geschaltet. Das Teilsystem A wird nun ebenfalls zur Bewuchsverhinderung lokal begrenzt und kurzzeitig thermisch überhitzt.After cleaning operation in the sea box IB, this subsystem is switched to sea mode by opening the blind 4B. The sea crate 1A, which was previously active in maritime operations, is now being Procedure switched to cleaning operation. Subsystem A is now also limited locally to prevent fouling and briefly overheated thermally.
Weitere Seekästen und mit ihnen wirkungsverbundene Rohrleitungen können in analoger Verfahrensweise abschnittsweise vor Bewuchs geschützt werden. Additional sea boxes and pipes connected to them can be protected section by section from fouling in an analogous procedure.
BezugszeichenlisteReference list
1 Seekasten 1A Seekasten IB Seekasten1 sea case 1A sea case IB sea case
2 Niedrigtemperatur-Seekastenkühler 2A Niedrigtemperatur-Seekastenkühler 2B Niedrigtemperatur-Seekastenkühler2 Low temperature sea case cooler 2A Low temperature sea case cooler 2B Low temperature sea case cooler
3 Auslassschlitze3 outlet slots
4 Seekastenjalousie 4A Seekastenjalousie 4B Seekastenjalousie4 Sea box blind 4A Sea box blind 4B Sea box blind
5 Entlüftung5 ventilation
6 Spülanschluss6 rinsing connection
7 Zinkanode7 zinc anode
8 Einlassschlitze8 inlet slots
9 integriertes Hochtemperatur-Rohrbündel9 integrated high-temperature tube bundles
10 Jalousienantrieb10 blind drive
11 Führungsschiene11 guide rail
12 Jalousienkasten12 blind boxes
13 Hauptmotor13 main engine
14 Plattenwärmetauscher14 plate heat exchangers
15 Zusätzlicher Wärmetauscher15 Additional heat exchanger
16 Temperaturregelventil16 temperature control valve
17 verschiebbare, elastische Platte17 slidable, elastic plate
18 Doppelhülle18 double shell
19 Mischtank19 mixing tank
20A Seewasserumwälzpumpe, aktiv20A seawater circulation pump, active
20B Seewasserumwälzpumpe, passiv20B seawater circulation pump, passive
21A;B Absperrarmaturen, Seew. -Vorlauf, aktiv ; passiv21A; B shut-off valves, Seew. -Forward, active; passive
22A;B Absperrarmaturen, Seew. -Rücklauf, aktiv ; paasiv 22A; B shut-off valves, Seew. -Rewind, active; paasive

Claims

Patentansprüche claims
1. Verfahren zur Vermeidung von Bewuchs durch Seepocken, Muscheln und weiterer Bewuchsorganismen an Bauteilen in Seekästen, insbesondere Seekastenkühlern, wie sie auf Schiffen und Offshore-Plattformen zum Einsatz kommen, wobei zur Abtötung von Bewuchsorganismen eine auf den Seekasten lokal begrenzte, kurzfristige und regelmäßig wiederholbare thermische Uber- hitzung des eingeschlossenen Seewassers stattfindet, welche mittels einer Umschalteinrichtung im Kühlwassersystem das Hochtemperatur-Motorkühlwasser direkt auf den Niedrigtemperatur-Seekastenkühler (2) schaltet und damit das Seewasser im Seekasten überhitzt.1.Procedure for preventing fouling by barnacles, mussels and other fouling organisms on components in sea boxes, in particular sea box coolers, such as are used on ships and offshore platforms, whereby a short-term, regularly repeatable localization on the sea box is used to kill fouling organisms Thermal overheating of the enclosed sea water takes place, which switches the high-temperature engine cooling water directly to the low-temperature sea case cooler (2) by means of a switching device in the cooling water system and thus overheats the sea water in the sea case.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in mehreren Seekästen (la;lB) eines Seewassersystems mit den sie Wirkungsverbindenden Rohrleitungen und Kanälen sowie den im Seewassersystem eingebauten Komponenten, wie Seekastenkühler (2 A;B), Pumpen (20A; 2OB) und Armaturen (21A, 21B;22A;22B) abschnittsweise das eingeschlossene Seewasser kurzfristig und lokal begrenzt, regelmäßig thermisch überhitzt wird, damit das gesamte Seewassersystem durch das überhitzte eingeschlossene Seewasser abschnittsweise vor Bewuchs geschützt ist.2. The method according to claim 1, characterized in that in several sea boxes (la; lB) of a sea water system with the pipes and ducts connecting them as well as the components installed in the sea water system, such as sea box cooler (2 A; B), pumps (20A; 2OB) and fittings (21A, 21B; 22A; 22B) in sections the enclosed sea water is temporarily and locally limited, regularly thermally overheated, so that the entire sea water system is partially protected from fouling by the overheated enclosed sea water.
3. Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, dass mittels integrierter Meß- und Regelsysteme sowie Stelleinrichtungen die lokale kurzfristige Überhitzung regelmäßig selbsttätig durchgeführt und automatisch überwacht wird.3. The method according to claim 1 and 2, characterized in that the local short-term overheating is carried out automatically and regularly and automatically monitored by means of integrated measuring and control systems and control devices.
4. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass über einen Spülanschluss (6) eine Spülung der abgesperrten Einbauten mit Frischwasser vor oder nach Beendigung der lokalen Überhitzung möglich ist-.4. The method according to claim 1 to 3, characterized in that a flushing of the blocked internals with fresh water before or after the end of the local overheating is possible via a flushing connection (6).
5. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass der Seekasten (1) mit Aus-5. Device for performing the method according to claim 1 to 4, characterized in that the sea box (1) with off
(3) und Einlassschlitzen (8) versehen ist, die in der Außenhaut des Schiffes angeordnet sind und durch Verschlüsse (4) einzeln oder gemeinsam mechanisch verschließbar sind.(3) and inlet slots (8) is provided, which are arranged in the outer skin of the ship and can be mechanically closed individually or together by means of closures (4).
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass einzelne Seekästen (1A;1B) eines Seewassersystems und die sie verbindenden Rohrleitungen und Kanäle sowie die im Seewassersystem eingebauten Komponenten, wie Seekastenkühler (2 A;B), Pumpen (20A; 2OB) und Armaturen (21A, 21B;22A;22B) getrennte Teilsysteme bilden, so dass eine kurzfristige und lokal begrenzte, regelmäßige thermische Überhitzung des eingeschlossenen Seewassers erfolgt und damit das gesamte Seewassersystem abschnittsweise vor Bewuchs geschützt wird.6. The device according to claim 5, characterized in that individual sea boxes (1A; 1B) of a sea water system and the pipes and ducts connecting them as well as the components installed in the sea water system, such as sea box coolers (2 A; B), pumps (20A; 2OB) and Fittings (21A, 21B; 22A; 22B) form separate subsystems, so that short-term and locally limited, regular thermal overheating of the enclosed sea water takes place and the entire sea water system is thus protected from vegetation in sections.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Teilsysteme in ein aktives Teilsystem (Seebetrieb geöffnete Jalousie (4A) im aktiven Seekasten (1A) und geschlossene Absperrarmatur (21A) sowie geschlossene Absperrarmatur (21B) im passiven Seekasten (IB) ) und in ein passives Teilsystem (Reinigungsbetrieb geschlossene Jalousie (4B) im passiven Seekasten (IB) und geöffnete Absperrarmatur (22B) sowie geöffnete Absperrarmatur (22A) im aktiven Seekasten (1A)) aufgeteilt sind.7. The device according to claim 6, characterized in that the subsystems in an active subsystem (open sea blinds (4A) in the active sea box (1A) and closed Shut-off valve (21A) and closed shut-off valve (21B) in the passive sea box (IB)) and in a passive subsystem (cleaning operation closed blinds (4B) in the passive sea box (IB) and open shut-off valve (22B) as well as open shut-off valve (22A) in the active sea box (1A)) are divided.
8. Vorrichtung nach einem der oben genannten Ansprüche, dadurch gekennzeichnet, daß der Verschluss (4) eine Jalousie ist.8. Device according to one of the above claims, characterized in that the closure (4) is a blind.
9. Vorrichtung nach einem der oben genannten Ansprüche, dadurch gekennzeichnet, dass der Verschluss (4) eine elastische, verschiebbare Platte (17) ist.9. Device according to one of the above claims, characterized in that the closure (4) is an elastic, displaceable plate (17).
10. Vorrichtung nach einem der oben genannten Ansprüche, dadurch gekennzeichnet, dass der Verschluss (4) von einem einzelnen oder gemeinsamen Antrieb (10) bewegt wird.10. Device according to one of the above claims, characterized in that the closure (4) is moved by a single or common drive (10).
11. Vorrichtung nach einem der oben genannten Ansprüche, dadurch gekennzeichnet, dass der Verschluss (4) mit speziellen bewuchs- und reibungsmindernden Materialien, insbesondere Teflon, beschichtet ist.11. Device according to one of the above claims, characterized in that the closure (4) is coated with special growth and friction-reducing materials, in particular Teflon.
12. Vorrichtung nach einem der oben genannten Ansprüche, dadurch gekennzeichnet, dass zur schnellen lokalen Aufheizung des eingeschlossenen Seewassers ein zusätzliches integriertes Hochtemperatur-Rohrbündel (9) des Hochtemperatur-Kreises des Hauptmotors (13) im Seekastenkühler (1) vorgesehen ist.12. Device according to one of the above claims, characterized in that an additional integrated high-temperature tube bundle (9) of the high-temperature circuit of the main motor (13) in the sea cooler (1) is provided for rapid local heating of the enclosed sea water.
13. Vorrichtung nach einem der oben genannten Ansprüche, dadurch gekennzeichnet, dass im Seekasten (1) zusätzliche spezielle Hilfsvorrichtungen, insbesondere Dampfverteilerlanzen, eingebaut sind. 13. Device according to one of the above claims, characterized in that in the sea box (1) additional special auxiliary devices, in particular steam distribution lances, are installed.
EP00949100A 1999-06-17 2000-06-14 Method and device for preventing organism growth on sea-cases and seawater systems on ships, offshore platforms, etc. Expired - Lifetime EP1192075B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19921433A DE19921433C1 (en) 1999-06-17 1999-06-17 Prevention of biological growth formation on equipment of sea water systems on ships, offshore platforms etc. involves local, short-term repetitive heating of enclosed sea water
DE19921433 1999-06-17
DE19960037 1999-12-13
DE19960037A DE19960037A1 (en) 1999-06-17 1999-12-13 Method and device for preventing fouling in sea boxes and sea water systems on ships, offshore platforms, etc.
PCT/DE2000/001947 WO2000078605A1 (en) 1999-06-17 2000-06-14 Method and device for preventing organism growth on sea-cases and seawater systems on ships, offshore platforms, etc.

Publications (2)

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EP1192075A1 true EP1192075A1 (en) 2002-04-03
EP1192075B1 EP1192075B1 (en) 2004-02-18

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EP00949100A Expired - Lifetime EP1192075B1 (en) 1999-06-17 2000-06-14 Method and device for preventing organism growth on sea-cases and seawater systems on ships, offshore platforms, etc.

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EP (1) EP1192075B1 (en)
JP (1) JP4114769B2 (en)
KR (1) KR100615788B1 (en)
CN (1) CN1131158C (en)
AT (1) ATE259737T1 (en)
AU (1) AU765103B2 (en)
DE (2) DE19960037A1 (en)
ES (1) ES2215693T3 (en)
HK (1) HK1047914B (en)
NO (1) NO320943B1 (en)
PL (1) PL352308A1 (en)
WO (1) WO2000078605A1 (en)

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CA2548946C (en) 2003-12-09 2013-05-28 Keith Johnson A method and apparatus for treating marine growth on a surface
DE102005029988B3 (en) * 2005-06-28 2006-11-16 Peter Dipl.-Ing. Ninnemann Heat exchanger protection device against growth of organisms has movable funnels in distributor chamber and collection chamber
DE102007050107B4 (en) * 2007-10-19 2009-10-22 Envi Con & Plant Engineering Gmbh Cooling water system for power plants and industrial plants
DE102008029464B4 (en) * 2008-06-20 2013-02-07 Gunter Höffer 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
NL2001902C (en) * 2008-08-20 2010-03-10 Bloksma B V VESSEL WITH HEAT EXCHANGERS BETWEEN ITS DOUBLE BOTTOM.
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
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
NO20141141A1 (en) * 2014-09-19 2016-02-29 Multi Solutions As Procedure and system for cleaning cooling pipes in heat exchangers
JP6416399B2 (en) * 2014-12-12 2018-10-31 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Cooling device that cools fluid using surface water
JP6488013B2 (en) * 2014-12-12 2019-03-20 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Cooling device that cools fluid using surface water
RU2758176C2 (en) * 2014-12-12 2021-10-26 Конинклейке Филипс Н.В. Cooling device for cooling 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
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KR20020025078A (en) 2002-04-03
CN1131158C (en) 2003-12-17
JP4114769B2 (en) 2008-07-09
ATE259737T1 (en) 2004-03-15
AU2299702A (en) 2002-07-18
ES2215693T3 (en) 2004-10-16
DE50005337D1 (en) 2004-03-25
JP2003502072A (en) 2003-01-21
AU765103B2 (en) 2003-09-11
HK1047914B (en) 2004-05-07
EP1192075B1 (en) 2004-02-18
WO2000078605A1 (en) 2000-12-28
PL352308A1 (en) 2003-08-11
CN1356946A (en) 2002-07-03
KR100615788B1 (en) 2006-08-25
NO20016164L (en) 2002-02-18
DE19960037A1 (en) 2001-06-21
HK1047914A1 (en) 2003-03-14
NO20016164D0 (en) 2001-12-17
NO320943B1 (en) 2006-02-13

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