PatentDe  


Dokumentenidentifikation EP1544095 14.06.2006
EP-Veröffentlichungsnummer 0001544095
Titel Anordnung in einem Wasserfahrzeug
Anmelder Wärtsilä Finland Oy, Vaasa, FI
Erfinder Kosomaa, Janne, 31300 Tammela, FI;
Levander, Oskar, 20810 Turku, FI;
Laurilehto, Mika, 20880 Turku, FI
Vertreter Zipse & Habersack, 80639 München
DE-Aktenzeichen 602004000855
Vertragsstaaten AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LI, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR
Sprache des Dokument EN
EP-Anmeldetag 14.10.2004
EP-Aktenzeichen 040245565
EP-Offenlegungsdatum 22.06.2005
EP date of grant 10.05.2006
Veröffentlichungstag im Patentblatt 14.06.2006
IPC-Hauptklasse B63B 43/26(2006.01)A, F, I, 20051017, B, H, EP
IPC-Nebenklasse B63B 11/02(2006.01)A, L, I, 20051017, B, H, EP   

Beschreibung[en]

Invention relates to an arrangement in a marine vessel having at least two engines, each positioned in a separate engine compartments positioned substantially horizontally adjacent to each other.

Such an arrangement is disclosed for example in GB 1915. 13030.

In construction and operation of marine vessels safety is one of the most important factors. There are several factors to consider when gas is used as fuel in the engines of a marine vessel. In connection with gas operated engines safety arrangements are particularly important and stricter than for example with heavy fuel oil engines. Redundancy of machinery must be at adequate level also. For safety reasons gas operated engines are divided into two or more engine rooms, and an explosion proof bulkhead is required between the engine rooms. Also gas leakage is a risk, which must be taken into account. In most cases the engine rooms are divided by longitudinal bulkhead into two horizontally adjacent engine rooms. However, being provided with a longitudinal water and gas tight bulkhead, the vessel construction poses a risk of excessive listing in case of water leak through board of the vessel. This risk has been minimised by using floodgates or alike in the longitudinal bulkheads. The water may enter the adjacent engine room through the floodgate thus equalising the weight distribution and preventing excessive listing. A commonly known floodgate construction is a gate hinged at its upper edge to the opening frame. Should the water level increase at the other engine room the gate opens i.e. swings after being pushed by the pressure of flowing water.

This kind of a solution has a major drawback particularly when gas engines are used. Namely, in case of explosion in one of the engine rooms the effect of the explosion, like pressure pulse, is transmitted through the hinged gate to also to the other engine room, due to the gate operate by pressure difference between the engine rooms.

It is an object of the invention to provide an arrangement, which minimises the shortcomings of the prior art. More specifically it is an object of the invention to provide a floodgate arrangement device, which is explosion proof and still simple of its construction.

Objects of the invention are met substantially as is disclosed in claims 1 and as is more detailed disclosed in other claims. In an arrangement in a marine vessel according to the invention, which vessel having at least two engines, each positioned in a separate engine compartments positioned substantially horizontally adjacent to each other, the engine compartments are separated with each other by a wall structure comprising at least one opening provided with a floodgate arrangement, and that the floodgate arrangement comprises a buoyancy assisted movement actuation device for moving a gate device of the floodgate arrangement on the influence of raising water level. This way the raising water level may open the gate, but not hydrodynamic pressure of water flowing against the gate device.

According an embodiment of the invention the buoyancy assisted movement actuation device comprise a float means provided in direct connection with the floodgate device. In some cases, depending e.g. on machine room layout, the buoyancy assisted movement actuation device may also comprise float means provided in force transmission connection, but separate, with the floodgate arrangement.

The wall structure comprises a gate support structure adapted to prevent rotary movement of a gate device of the floodgate arrangement and to allow translatory movement of the gate device. This prevents the opening of the gate device under effect of increasing pressure in either of the compartments e.g. caused by an explosion. The gate device is supported to the wall structure by gate device guides, which guide the gate device and allow only substantially vertical movement of the gate device.

The wall structure comprises a space provided for a gate device of the floodgate arrangement into which space the gate device may at least partially moved providing a safe cover and clear space for the gate device to move. The floodgate arrangement comprises pressure device for effecting on the pressure prevailing in the space. With the pressure device, like blower, the space may by maintained at under pressure conditions, which prevents gas passage from compartment to the other in case on a gas leakage.

The float means of the buoyancy assisted movement actuation device is preferably in connection with lower section of the gate device, so that movement of the gate device commences at earliest possible event.

In the following the invention is exemplarily illustrated with the reference to the accompanying schematic drawings, in which

  • Fig. 1 shows a part of a ship depicting its machine rooms,
  • Fig. 2 shows a side view of the presentation of Fig. 1,
  • Fig. 3 shows a cross section of a ship provided with a floodgate arrangement according to an embodiment of the invention, in a beginning stage of leakage occurrence,
  • Fig. 4 shows the operation of the floodgate arrangement in leakage occurrence, and
  • Fig. 5 shows another embodiment of the floodgate arrangement according to the invention.

In figures 1 and 2 there is schematically illustrated a part of a marine vessel 1, like a ship. For sake of simplicity the stern and bow are not shown. The ship is provided with a machine room 2, which is bounded by transverse bulkheads 3. Being provided with at least two engines 4.1,4.2, the machine room is divided by a longitudinal bulkhead 5 to two engine compartments 2.1, 2.2. Here, the compartments comprise a pair of engines but the arrangement may consist of only one engine in each compartment, as well. The engines are connected with a source of gas 15, being mainly gas operated. The longitudinal bulkhead dividing the machine room extends between the transverse bulkheads substantially in a direction of vessel's centre line, so that a solid wall structure 5 is formed.

The wall structure 5 has different functions for different circumstances, and in order to fulfil its purposes, it has an opening 6, which also is closeable and provided with a floodgate arrangement 7. The floodgate arrangement comprises a gate device 8, by means of which the opening 6 may be opened and closed: The main purposes of the longitudinal bulkhead i.e. the solid wall structure 5 is to separate the machine compartments from each other, which is required by safety regulations e.g. when gas engines are used. Gas as the fuel poses an increased risk of explosion and therefore the separate compartments are necessary. Hence, the gate device 8 is constructed to withhold the pressure and other effects of possible gas explosion in other compartment from causing damages on the other compartment. It is also substantially gas tight for separating the compartments in case of gas leakage.

The gate device 8 is supported by a gate support structure 10 adapted to prevent rotary movement of a gate device 8. In the embodiment of figure 2 the gate is provided partially within the wall structure. This arrangement allows only translatory movement of the gate device, in this case up and downwards in the figure 2. In addition to be substantially explosion proof when closed, the floodgate arrangement comprises a buoyancy assisted movement actuation device 9, which is operated by hydrostatic pressure caused by leaking water. The buoyancy assisted movement actuation device 9 includes float means 9.1 attached directly to both opposite sides of the gate device. This way the float means will raise the gate device and provide an opening for water to enter the other, adjacent compartment, in case of flood in either of the compartments 2.1,2.2. This in turn equalises the mass of the water over the beam of the ship. The float means 9.1 are naturally watertight. In this embodiment they are formed as elongated, hollow (gas filled) cylinder shaped parts attached to lower section of the gate device 8.

Turning to figures 3 and 4 one can see the operation of the arrangement when the vessel is leaking. The construction is corresponding to that of figures 1 and 2 and also corresponding reference numbering has been used. The arrow "A" shows a leakage at the other side of the ship 1. When water is entering to the compartment 2.2, as is shown in figure 3, and its level is rising, normally the ship begins to list. Now, as the water level rises the float means of the buoyancy assisted movement actuation device 9 begin to exert force on the gate device 8. As can be seen in figure 4 the gate device begins to lift up and simultaneously increase open area of the opening 6. In consequence of that, the water may enter also the other, adjacent compartment 2.1. Since the water may enter also the adjacent compartment 2.1, its weight is divided substantially equally and thus excessive listing of the ship is thus prevented.

The wall structure 5 comprises a space 11 into which the gate device 8 slide when moved upwards in the figures 3 and 4. The wall structure 5 also comprises a gate support structure 10, by means of which the gate device is supported by the wall structure so that only translatory movement is possible. In this embodiment the gate device is partially within the wall structure at its both ends and the gate support structure additionally comprises gate device guides 10.1, which guide the movement of the gate device 8 and allow only vertical movement of the gate device. This arrangement provides a structure, which prevents opening of the gate device by hydrodynamic pressure caused e.g. by explosion or leakage water jet against the gate device but which opens the gate device when the water level is increasing, that is by hydrostatic pressure. In order to prevent possible undesired drifting of gases from compartment to another, the space 11 provided with a pressure device 12, in this case a blower arrangement, which provides under pressure in the space 11.

As mentioned before, the buoyancy assisted movement actuation device 9 is in directly connected to gate device 8 the floodgate arrangement. This way the construction is straightforward and reliable. Since the wall structure 5 is preferably gas tight, particularly when gas engines are used, the space 11 is connected e.g. to a blower or pump 12 to provide under pressure in the space.

In figure 5 is shown an embodiment in which the gate device 8 and the buoyancy assisted movement actuation device 9 are connected with each other by a force transmission means 13. The force transmission means is here a wire pulley arrangement, but it may also be e.g. hydraulic arrangement.

The invention is not limited to the embodiments shown but several modifications may be conceivable within the scope of the claims. For example instead of one large floodgate arrangement it is possible to provide several smaller ones. The float means may also comprise automatically or manually inflatable construction.


Anspruch[de]
Anordnung in einem Wasserfahrzeug (1), das mindestens zwei Maschinen (4.1, 4.2) aufweist, die jeweils in getrennten Maschinenabteilen (2.1, 2.2), die im wesentlichen horizontal nebeneinander angeordnet sind, positioniert sind, dadurch gekennzeichnet, dass die Maschinenabteile durch eine Wandstruktur (5), die mindestens eine Öffnung (6) umfasst, die mit eine Schützanordnung (7) versehen ist, getrennt werden, und dass die Schützanordnung eine vom Auftrieb unterstützte Bewegungsbetätigungseinrichtung (9) für das Bewegen einer Toreinrichtung (8) der Schützeinrichtung (7) auf den Einfluss eines steigenden Wasserpegels hin umfasst. Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass die vom Auftrieb unterstützte Bewegungsbetätigungseinrichtung (9) eine Schwimmeinrichtung umfasst, die sich in direkter Verbindung mit der Schützeinrichtung (8) befindet. Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass die vom Auftrieb unterstützte Bewegungsbetätigungseinrichtung (9) Schwimmeinrichtungen (9.1) umfasst, die in einer Kraftübertragungsverbindung (13) mit der Schützeinrichtung (7) vorgesehen sind. Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass die Wandstruktur (5) eine Torstützstruktur (10) umfasst, die ausgelegt ist, um eine Drehbewegung einer Toreinrichtung der Schützanordnung zu verhindern und um eine Schiebebewegung der Toreinrichtung (8) zu ermöglichen. Anordnung nach Anspruch 4, dadurch gekennzeichnet, dass die Toreinrichtung (8) an der Wandstruktur (5) durch die Torstützstruktur, die Toreinrichtungsführungen (10.1) umfasst, die nur eine im wesentlichen vertikale Bewegung der Toreinrichtung ermöglichen, gestützt wird. Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass die Wandstruktur einen Raum (11) umfasst, der für eine Toreinrichtung (8) der Schützanordnung vorgesehen ist, wobei in diesen Raum die Toreinrichtung zumindest teilweise bewegt werden kann, und dass die Schützeinrichtung eine Druckeinrichtung (12) für das Einwirken auf den Druck, der im Raum (11) herrscht, umfasst. Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass die Schwimmeinrichtung (9.1) der vom Auftrieb unterstützten Bewegungsbetätigungseinrichtung (9) sich in Verbindung mit dem unteren Abschnitt der Toreinrichtung (8) befindet. Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass die Maschinen (4.1, 4.2) mit Gas (15) betrieben werden.
Anspruch[en]
Arrangement in a marine vessel (1) having at least two engines (4.1,4.2), each positioned in a separate engine compartments (2.1,2.2) positioned substantially horizontally adjacent to each other, characterised in that the engine compartments are separated with each other by a wall structure (5) comprising at least one opening (6) provided with a floodgate arrangement (7), and that the floodgate arrangement comprises a buoyancy assisted movement actuation device (9) for moving a gate device (8) of the floodgate arrangement (7) on the influence of raising water level. Arrangement according to claim 1, characterised in that the buoyancy assisted movement actuation device (9) comprise a float means provided in direct connection with the floodgate device (8). Arrangement according to claim 1, characterised in that the buoyancy assisted movement actuation device (9) comprise float means (9.1) provided in force transmission (13) connection with the floodgate arrangement (7). Arrangement according to claim 1, characterised in that the wall structure (5) comprises a gate support structure (10) adapted to prevent rotary movement of a gate device of the floodgate arrangement and to allow translatory movement of the gate device (8). Arrangement according to claim 4, characterised in that the gate device (8) is supported to the wall structure (5) by the gate support structure comprising a gate device guides (10.1) which allow only substantially vertical movement of the gate device. Arrangement according to claim 1, characterised in that the wall structure comprises a space (11) provided for a gate device (8) of the floodgate arrangement into which space the gate device may at least partially moved and that the floodgate arrangement comprises pressure device (12) for effecting on the pressure prevailing in the space (11). Arrangement according to claim 1, characterised in that the float means (9.1) buoyancy assisted movement actuation device (9) is in connection with lower section of the gate device (8). Arrangement according to claim 1, characterised in that the engines (4.1,4.2) are gas (15) operated.
Anspruch[fr]
Dispositif dans un bateau (1) maritime ayant au moins deux moteurs (4.1, 4.2), chacun étant positionné dans des compartiments (2.1, 2.2) de moteur séparé positionné essentiellement de façon horizontale l'un près de l'autre, caractérisé en ce que les compartiments à moteur sont séparés l'un de l'autre par une structure (5) sous forme de paroi comprenant au moins une ouverture (6) pourvue d'un dispositif (7) à vanne de décharge, et en ce que le dispositif à vanne de décharge comprend un actuateur (9) de mouvement assisté de flottabilité pour bouger un dispositif de grille (8) du dispositif (7) à vanne de décharge afin de hausser le niveau de l'eau. Dispositif selon la revendication 1, caractérisé en ce que l'actuateur (9) de mouvement assisté de flottabilité comprend des moyens de flottabilité fournis (9.1) en liaison directe avec le dispositif à vanne de décharge (8). Dispositif selon la revendication 1, caractérisé en ce que l'actuateur (9) de mouvement assisté de flottabilité comprend des moyens de flottabilité (9.1) fournis dans une connexion de transmission de force avec le dispositif à vanne de décharge (8). Dispositif selon la revendication 1, caractérisé en ce que la structure sous forme de paroi (5) comprend une structure (6) de support de grille adaptée pour empêcher un mouvement rotatif d'un dispositif de grille du dispositif à vanne de décharge et pour permettre un mouvement translatoire du dispositif de grille (8). Dispositif selon la revendication 4, caractérisé en ce que le dispositif de grille (8) est supporté sur la structure (5) sous forme de paroi par la structure de support de grille comprenant des guides de dispositif de grille (10.1) qui ne permettent essentiellement qu'un mouvement vertical du dispositif de grille. Dispositif selon la revendication 1, caractérisé en ce que la structure sous forme de paroi comprend un espace (11) pourvu pour un dispositif de grille (8) du dispositif à vanne de décharge dans lequel espace le dispositif de grille peut être au moins partiellement bougé, et en ce que le dispositif à vanne de décharge comprend le dispositif de pression (12) destiné à agir sur la pression prévalant dans l'espace (11). Dispositif selon la revendication 1, caractérisé en ce que les moyens de flottabilité (9.1) sont constitués d'un actuateur (9) de mouvement assisté de flottabilité. Dispositif selon la revendication 1, caractérisé en ce que les moteurs (4.1, 4.2) sont mis en marche par du gaz (15).






IPC
A Täglicher Lebensbedarf
B Arbeitsverfahren; Transportieren
C Chemie; Hüttenwesen
D Textilien; Papier
E Bauwesen; Erdbohren; Bergbau
F Maschinenbau; Beleuchtung; Heizung; Waffen; Sprengen
G Physik
H Elektrotechnik

Anmelder
Datum

Patentrecherche

Patent Zeichnungen (PDF)

Copyright © 2008 Patent-De Alle Rechte vorbehalten. eMail: info@patent-de.com