JP2004009950A - Water trap alternative element - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wall element for partitioning adjacent zones in a hull having a plurality of zones. <P>SOLUTION: The wall element of the present invention is provided with: a main wall element which supports a predetermined load and has fire resistance; and an additional element which forms a wall partitioning adjacent zones in collaboration with the main wall element, is located under the main wall element, has no liquid filled inside, and is fire-resistant. The additional element blocks movement of a heating gas between the adjacent zones and allows movement of seawater to the other zone when the seawater penetrates one of the adjacent zones. Moreover, the additional element forms a flow passage granted as a floating element which floats by seawater when the seawater penetrates one of the adjacent zones for having the seawater flow to the other of the adjacent zones by floating by the seawater. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an element provided in a partition between sections of a hull in order to ensure resilience in the event of damage to a ship such as a passenger ship, and in particular, to an alternative element of a water trap.
[0002]
[Prior art]
Ships where stable navigation is important, especially cruise ships, are required to comply with the prescribed rules regarding stability in case of damage in order to restore the hull inclination caused when the hull is damaged due to collision with obstacles or grounding. I have. In order to satisfy this demand, ships and other ships are equipped with various facilities, and one of them is a water trap.
[0003]
The water trap is provided to a wall element that partitions an adjacent section among the sections partitioned into a plurality of sections inside the hull. Specifically, as shown in FIGS. 4A and 4B, the water trap has combs (edges) protruding from a deck disposed on both lower sides of a wall element partitioning an adjacent section. The water is filled in the combing. Adjacent sections are held in a state of shutting off fire and water during normal navigation (having Fire / Water Tight property), but seawater invaded one of the adjacent sections due to damage to the hull by a water trap. In such cases, seawater will enter other compartments. As a result, the rotational moment around the axis of the hull can be reduced in a state where it is submerged in multiple compartments than in a state where only some of the compartments inside the hull are submerged, and the stability of the hull is improved. I do.
[0004]
For example, referring to FIG. 4 (A), sections A and B separated by a wall are connected only by an opening provided below the wall, and are filled with water during combing, so that normal navigation is performed. In some cases, the fire (specifically, heated gas) and water between adjacent sections are blocked from moving, whereas when section B is flooded to a height exceeding the combing, the water is filled in the combing. Water and inundated seawater communicate. As a result, the seawater enters the section A from the section B through the opening provided in the wall until the water surface of the section B and the water surface of the section A reach the same height. Therefore, according to the water trap, the sections A and B form a separate section during normal navigation of the vessel, whereas the sections A and B form the same fluid section during the inundation. Become. Therefore, the lateral inclination of the hull itself can be moderated, and the above-mentioned rule requirements regarding stability in the event of damage can be satisfied.
[0005]
Also, in the case of the water trap shown in FIG. 4 (B), the movement of fire and water is interrupted during normal voyage of the ship, whereas the seawater flows into the other compartment when one of the compartments is flooded. It is. In other words, which one of FIGS. 4A and 4B is selected is merely a matter of surplus space inside the hull.
[0006]
However, in the conventional water trap method, it is necessary to install a steel structure as combing, a makeup water inlet for filling combing with water, and a liquid level gauge for detecting the amount of filled water. Was increasing.
Also, if water leaks from a combing into each section during normal navigation of a ship, water may enter the electrical equipment installed in the section and cause a serious failure such as a short circuit. Become.
[0007]
[Problems to be solved by the invention]
Therefore, the present invention has a function of shutting off the adjacent section during normal cruising while making the same section fluidly when immersed in water, and can be manufactured with a simpler structure and does not need to be filled with water during normal cruising. It aims to provide an alternative element of the trap.
[0008]
[Means for Solving the Problems]
According to claim 1, the present invention provides a wall element for partitioning an adjacent section in a hull having a plurality of sections, the main wall element being capable of supporting a predetermined load and having fire resistance; An additional element which cooperates with a wall element to form a wall for partitioning the adjacent compartment and which is located below the main wall element and has a fire-resistant property not to be filled with a liquid therein; The element can block the movement of the heated gas between the adjacent sections, and allow seawater to move to the other of the adjacent sections when seawater enters one of the adjacent sections. A wall element for partitioning adjacent compartments is provided.
[0009]
Whereas conventional water traps are installed below the wall elements that partition adjacent compartments inside the hull with water-filled combing, the present water traps are replaced by additional elements of this wall element. In this case, there is no need to fill the inside with a liquid such as water. Therefore, it is not necessary to separately provide a structure necessary for filling the water and a liquid level gauge and a replenishing water port necessary for maintaining the state filled with the water, so that the manufacturing cost can be significantly reduced. it can.
Furthermore, the additional element can avoid the danger that water enters the electric component when the compartment inside the hull is equipped with the electric component by causing the electric component not to be filled with water, thereby causing a problem such as a short circuit.
[0010]
According to claim 2, the present invention is a wall element for partitioning adjacent compartments according to claim 1, wherein the additional element comprises a floating element having a specific gravity smaller than at least seawater, wherein the floating element is When seawater enters one of the adjacent sections, the seawater is lifted up by the seawater, and a flow path for flowing the seawater to the other of the adjacent sections is formed below the floating element. A wall element is provided for partitioning the compartment.
[0011]
The additional element of this wall element is a floating element having a specific gravity smaller than that of seawater, so that when one of the adjacent sections inside the hull is damaged by flooding, the floating element rises up, seawater flows below it, and the other section invade. As a result, the water surfaces of both sections reach the same height. In other words, according to the additional element of this wall element, adjacent sections inside the hull are shielded from each other when the ship is normally navigating, but if the section inside the hull is flooded due to damage, The compartments will fluidly form the same compartment. Therefore, the same operation as a conventional water trap can be achieved without filling with water only by closing the lower part of the wall element forming the compartment inside the hull with the floating element, and the cost can be significantly reduced. In addition, it is possible to avoid the danger of water entering the electrical product.
[0012]
According to claim 3, the present invention is a wall element for partitioning an adjacent section according to claim 2, wherein the floating element is a member slidable with respect to the main wall element. A wall element is provided for partitioning a featured adjacent compartment.
[0013]
According to the apparatus for adding a wall element, a floating element slidable with respect to the main wall element is inserted into an opening or the like provided below a wall element forming a section inside the hull, thereby allowing one of the adjacent sections to be inserted. When the section is submerged, the floating element lifts up, ie slides upward with respect to the main wall element. Thus, a flow path through which seawater flows is formed between the lower surface of the floating element and the deck. Therefore, in the present wall element, the same effect as that of the conventional water trap can be obtained at the time of submersion only by preparing a member that can be inserted below the main wall element.
[0014]
According to claim 4, the present invention is a wall element for partitioning an adjacent section according to claim 2, wherein the floating element is constituted by a plurality of granules, and the additional element is formed by the granules. A wall element for partitioning adjacent compartments, further comprising a container surrounding the container.
[0015]
According to this wall element, a plurality of granular bodies are provided as the floating element according to the second aspect, and a container for charging the granular bodies is provided. As described above, since the conventional water trap is filled with water, there has been a problem of intrusion of water into electric appliances. In this wall element, a granular material having a lower specific gravity than seawater is filled in place of the water that has been filled in a conventional water trap, and when the granular material floats up during inundation, seawater flows into an adjacent section and the adjacent section has a fluid. The same section is formed. Therefore, the same effect as the conventional water trap can be obtained only by replacing the water filled in the conventional water trap with the granular material having fire resistance. Further, according to the present wall element, it is also possible to completely eliminate the effect on electric appliances due to water leakage, which is a problem of the conventional water trap.
[0016]
Although the contents of the present invention have been described above, the present invention will be more clearly understood by describing embodiments of the present invention with reference to the accompanying drawings.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a cross-sectional view of a connecting portion of an adjacent section inside a hull illustrating an embodiment of the present invention. FIG. 1A shows a state of the ship during normal navigation. Specifically, the connecting portion between the sections A and B includes, for example, a main wall element 12 made of steel as a wall element separating the two sections, a deck 14 serving as a partition forming a layer inside the hull, and a main wall element. It is constituted by a float 10 as a floating element interposed between the deck 12 and the deck 14. FIG. 1B shows a state in which a ship has been damaged and seawater has entered section A in FIG. 1A.
[0018]
An opening 16 as illustrated in FIG. 2 is provided below the main wall element 12, and the float 10 is provided in the opening 16. The float 10 is made of a fire-resistant material having a specific gravity smaller than that of seawater. Further, the float 10 is provided with a notch 18 from the upper surface, and is arranged so that the lower end of the main wall element 12 is inserted into the notch 18. At the time of normal navigation of the ship, a gap of a predetermined distance is provided between the lowermost portion of the cut 18 and the lowermost end of the main wall element 12, and a gap having a length d in FIG.
[0019]
Next, the position of the float 10 when seawater has entered the section A due to damage to the hull will be described. As shown in FIG. 1B, the float 10 rises. This is because the float 10 has a lower specific gravity than seawater. At this time, since a gap having a length d is provided between the lowermost portion of the cut 18 of the float 10 and the lowermost end of the main wall element 12 as described above, the float 10 may float by the length d. it can. Accordingly, a gap 20 is also formed between the lower surface of the float 10 and the deck 14 by the length d.
[0020]
Due to the formation of the gap 20, the seawater that has entered the section A flows through the gap 20 and flows into the section B. Finally, the water surfaces of the sections A and B reach the same height. In other words, if the section A is flooded, the float 10 rises, so that the sections A and B at the time of flooding fluidly form the same section.
[0021]
Summarizing the above, according to the embodiment shown in FIGS. 1 and 2, the lower surface of the float 10 engages with the deck 14 due to the gravity of the float 10 when the ship normally sails, and the upper portion has the main wall element 12. In order to maintain the inserted state, the sections A and B are completely shielded, and the movement of the heated gas between the sections can be prevented even in the event of a fire. On the other hand, when seawater is flooded in one of the compartments due to damage, the float 10 is lifted by the flooded seawater and the flow path 20 between the lower surface of the float 10 and the deck 14 where seawater enters the adjacent compartment from the flooded compartment. Is formed and only one compartment can be prevented from being flooded. That is, it is possible to prevent a local load from being applied to the hull, and to suppress a decrease in the stability of the hull.
[0022]
Referring to FIG. 3, another embodiment of the wall element of the present invention is schematically illustrated. FIG. 3 (A) shows a conventional water trap shown in FIG. 4 (A) in which granular material 30 having a lower specific gravity than seawater is filled as an alternative to water which has been filled in combing for shielding between adjacent sections. Shows the case.
[0023]
First, the substance filled in the combing 31 needs to have fire resistance. This is because it is necessary to avoid the movement of the heating gas between the sections A and B in the event of a fire, so that the combustible substance does not burn and the shield cannot be maintained. On the other hand, for example, when seawater enters the section A, it is necessary to flow the seawater into the section B in order to maintain the stability of the hull as described above. That is, the substance to be filled in the combing 31 needs to be capable of infiltrating the seawater into the combing 31 and allowing the seawater to flow into the section B.
[0024]
As described above, in the embodiment shown in FIG. 3 (A), a fire-resistant granular material 30 is employed as a substance to be filled in the combing 31. When the granular material 30 having fire resistance is employed, if seawater enters the section A by a certain amount or more, the seawater enters the combing 31 beyond the combing 31. When the seawater enters the combing 31, the granular material 30 rises and scatters outside the combing 31. Thereby, the opening 40 provided below the deck 34 is opened, and the seawater flows from the section A to the section B. That is, the sections A and B fluidly form the same section.
[0025]
FIG. 3B shows a modification of the embodiment shown in FIG. 3A, which is adopted when it is difficult to fill the granular material above the deck 34 in terms of space. Specifically, the granular material 30 'is filled in a container element 41 arranged below the deck 34'. The container element 41 is arranged so that the upper surface is covered by a deck 34 ′ having an opening 43 for each of the sections A and B. Further, when the granular material 30 ′ is filled in the container element 41, the granular material 30 ′ is filled in the container element 41 such that a predetermined gap 41 is formed between the granular material 30 ′ and the deck 34 ′. . In the case of the embodiment shown in FIG. 3B, the combing 31 shown in FIG. 3A is unnecessary. The granular state 30 ′ is filled in the container element 41, and the deck 34 is provided as a lid above the container element 41, so that the granular material 30 ′ scatters on the deck 34 ′ during normal navigation of the ship. Is hard to imagine.
[0026]
When the seawater enters the compartment, for example, when the compartment A is flooded, the seawater enters the container element 41 through the opening 43 on the section A side, and the container element 41 is filled with the seawater, whereby the granular material is formed. 30 'comes up. At this time, the granular material 30 ′ cannot flow out of the container element 41 by the deck 34 ′, but as described above, the granular material 30 ′ is filled in the container element 41 by an amount enough to form the gap 42. Therefore, when the seawater is filled in the container element 41, a gap is formed between the granular materials, and the seawater flows out to the section B via the opening 40 'provided below the main wall element 32' and the opening 42 on the section B side. Forming a flow path.
[0027]
Therefore, the embodiment shown in FIG. 3B is similar to the embodiment shown in FIG. 3A, in that the adjacent section is shielded during normal sailing of the ship without being filled with water, but is fluidized when flooded. To form the same section. As a result, there is no effect of water on the electric equipment provided in each section, and there is no need to separately provide facilities necessary for filling the water.
[0028]
Furthermore, in the above description, the granular materials 30 and 30 'in FIGS. 3A and 3B are required to have a specific gravity smaller than that of seawater, but the granular materials 30 and 30' are water-soluble. There may be. This is because the same effect can be obtained by forming a flow path that flows between sections by dissolving in submerged seawater.
[0029]
The exemplary embodiments of the present invention have been described above. However, the present invention is not limited to these, and various modifications may be made without departing from the concept and spirit of the claims. It will be apparent to those skilled in the art that there are and improvements.
[0030]
【The invention's effect】
According to the wall element of the present invention, adjacent internal compartments are shielded from each other during normal navigation of a ship without using a liquid such as water. However, if the hull is damaged and seawater is flooded in the compartments, the adjacent compartments are closed. Seawater can flow into the area. Therefore, it is possible to avoid a risk that the water leaks and adversely affects the electric components during the normal navigation of the ship.
[0031]
Further, according to the wall element, as described above, it is possible to eliminate the need to separately provide various equipment required for maintaining a state filled with water or the like in order not to fill the liquid such as water. it can. Therefore, manufacturing costs and labor can be significantly reduced.
[Brief description of the drawings]
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of one embodiment of the present invention, in which (A) shows a state during normal navigation of a ship, and (B) shows a state in which seawater is flooded in a compartment due to damage to a hull or the like. ing.
FIG. 2 is a perspective view showing a state before insertion of a float in the embodiment shown in FIG. 1;
FIGS. 3A and 3B schematically show another embodiment of the present invention, wherein FIG. 3A shows a case where a predetermined surplus space exists on a deck, and FIG. 3B shows a case where there is no surplus space on a deck. FIG.
FIG. 4 is a schematic view showing a conventional water trap.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Float 12 ... Main wall element 14 ... Deck 16 ... Opening 18 ... Incision 20 ... Gap 30, 30 '... Granular body 31 ... Combing 32, 32' ... Main wall element 34, 34 '... Deck 40, 40' ... Opening 41: Container element 43: Opening

Claims (4)

A wall element for partitioning adjacent compartments in a hull having a plurality of compartments,
A main wall element capable of supporting a predetermined load and having fire resistance,
An additional element, which cooperates with the main wall element to form a wall for partitioning the adjacent compartment and is located below the main wall element and has a non-liquid-filled fire-resistant interior.
Further, the additional element blocks movement of the heated gas between the adjacent sections, and allows seawater to move to the other of the adjacent sections when seawater enters one of the adjacent sections. A wall element for separating adjacent compartments. The additional element includes a floating element having a specific gravity smaller than at least seawater, and the floating element is lifted by the seawater when seawater enters one of the adjacent sections, and the seawater is placed below the floating element in the vicinity of the floating element. The wall element for partitioning adjacent compartments according to claim 1, wherein the wall element forms a flow passage for flowing to the other of the compartments. The wall element according to claim 2, wherein the floating element is a member slidable with respect to the main wall element. The wall element for partitioning adjacent compartments according to claim 2, wherein the floating element is composed of a plurality of granules, and the additional element further comprises a container surrounding the granules.

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