JPH0637094U - Fireproof structure for ships and heatproof panel used for the fireproof structure - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a fireproof structure that is lightened so as to satisfy the performance required as a fireproof structure of a ship whose construction is as little as possible on site, and a heatproof panel used for the fireproof structure. . A heat insulating liner having a width substantially the same as the web surface width is provided along the web 11 on the surface of the web 11 provided at predetermined intervals on a partition wall or deck which is a hull structural member.
A joint is formed between the heat-insulating panel F adjacent to the upper surface of the heat-insulating liner, and a plurality of heat-insulating panels F are continuously laid between the webs 11 to form an air space with the hull structural member. Then, a joint portion with another adjacent heat insulating panel located on the air space is formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fireproof structure of a bulkhead or deck that requires a fireproof partition in a ship, and particularly in a high-speed car ferry or the like in which the hull structure is made of aluminum to reduce the weight of the hull. The present invention relates to a fireproof structure suitable to be achieved and a heatproof panel used for the same.

[0002]

[Prior art]

 In recent years, there has been an increasing need for speeding up in the marine transportation of passenger cargo, and research on ultra-high-speed vessels has been actively conducted. In ordinary ships, the hull structure is made of steel plates, but in the case of ultra-high-speed ships, an ultra-high-speed ship composed of an aluminum hull aims to reduce the hull weight as much as possible from the viewpoint of propulsion performance and loading capacity improvement. Has appeared.

However, since the partition walls and decks for compartments carrying dangerous substances (vehicles with fuel) in high-speed car ferries, etc. are required by rules to have a fireproof structure, the weight of the fireproof structure affects the load capacity. It can be as large as that. Therefore, in high-speed car ferries, it is necessary not only to reduce the weight of the hull by making it aluminum, but also to reduce the weight of the fittings related to the fire protection structure as much as possible. In this case, if the existing fire protection structure is used as it is, the specifications are too high and the weight increases, so it cannot be used.

By the way, as shown in FIGS. 9 (a) and 9 (b), a general heat insulating work for a fireproof structure in a ship is that a stiffener (small bone) 31 is attached to a firebreak bulkhead or deck 30 forming a hull structural member. Since the webs (large bones) 32 are arranged at regular intervals, the heat insulating material 33 surrounds the stiffeners 31 and the webs 32, and is attached by stud pins and washers 34 so as to be in close contact with the hull structural member 30. . In such a conventional close mounting method, all of the work is performed on site, including cutting the heat insulating material 33 to a predetermined size, and work efficiency at the site is not good. Moreover, as shown in FIG. 9 (b), as the web 32 becomes larger, the weight of the heat insulating material 33 used increases accordingly. In addition, since the heat insulating material is attached closely to the hull structure, it is necessary to pay attention to the mounting accuracy so that there are no gaps in the joints of the heat insulating material. If there is a gap, heat will be transmitted directly to the hull from the gap and the temperature will rise, impeding fire protection performance.

On the other hand, a ship does not adopt a heat-insulating panel system in which a metal plate and a heat insulating material, which have a proven track record in application to land-based buildings, are integrated. In the heat insulation panel system for land buildings, when the heat insulation panel is used as a wall material or roofing material, the heat insulation panel is exposed to the outside world, so the joint part of the heat insulation panel has not only heat insulation performance but also waterproof performance. Required. Since the heat insulating panel itself is used as a constituent member of a wall material and a roof material, the heat insulating panel is required to have further bonding strength in addition to the above. Therefore, as shown in JP-B-62-23135, JP-A-2-147742 and JP-B-59-36599, the joint portion of the heat insulating panel for a land structure has a very complicated shape.

However, since the fireproof structure using the heat insulating material in the ship is used for the bulkhead and deck inside the hull, the heat insulating material or the heat insulating panel is not exposed to the outside world, and the hull strength is the hull strength. Since the structural member itself takes charge of the joint, unlike the heat insulating panel for land structures, the joint is not required to have waterproof performance and joint strength. In addition, the performance required by the rules of the fire protection structure of a ship is such that it prevents the passage of smoke and flame during a predetermined time during a fire and the temperature on the opposite side of the fire is below a predetermined temperature.

In view of the above technical background, the object of the present invention is to reduce the number of on-site constructions as much as possible, the weight of the heat insulating material is not influenced by the size (depth) of the web, and the accuracy of mounting the heat insulating material is not required so much. It is an object of the present invention to provide a fireproof structure which has a simple shape of a joint portion and which is lightweight so as to satisfy the performance required as a fireproof structure of a ship, and a heatproof panel used for the fireproof structure. .

[0008]

Means for Solving the Problems In order to achieve the above object, a first invention is a heat insulating liner having a width substantially the same as the width of a web surface on a web surface provided at predetermined intervals on a hull structural member such as a partition wall or deck. Are provided along the web to form a joint between the heat insulating panel adjacent to the upper surface of the heat insulating liner and to form an air space between the heat insulating panel and the hull structural member. A fireproof structure for a ship, characterized in that it is continuously laid between the airspaces and a joint with another adjacent heatproof panel is formed on the air space.

A second invention is that a flat face plate made of a thin steel plate and a side edge portion obtained by bending four sides of the face plate form a recess, and a heat insulating material such as rock wool is provided in the recess to form a web. On both sides of the face plate located on the surface, stud pin openings with a diameter larger than the stud pin diameter are provided at both ends of the face plate to match the arrangement pitch of the stud pins on the web surface. A heat insulating panel used for a fireproof structure of a ship, characterized in that a tongue-shaped piece is provided on one side of an edge portion, and pop-rivet openings are provided at a predetermined interval in the tongue-shaped piece.

[0010]

[Action]

 A heat shield panel system is constructed that has an air space between the hull structural members and the heat shield panel, and this air space contributes as a part of the heat insulating material. The weight of the heat insulating material is not affected by the size (depth) of the web, and the weight of the fireproof structure can be reduced.

[0011] Furthermore, since the heat insulating panel is attached to the web surface via the heat insulating liner, a gap can be allowed in the joint portion, and a gap can be allowed in the joint portion on the air space of the heat insulating panel. Therefore, the mounting accuracy of the heat insulating panel does not need to be so severe, and the mounting can be facilitated. Moreover, since the heat-insulating panel and the heat-insulating liner are to be prefabricated at the factory, the work efficiency on site can be expected to improve.

[0012]

【Example】

Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, referring to FIG. 1 (a plan view of a heat insulating panel), FIG. 2 (a) (a sectional view taken along the line AA) and FIG. 2 (b) (a sectional view taken along the line BB), a fireproof structure of the present invention is formed. The structure of the heat insulating panel used will be described in detail. The heat-insulating panel F has a recessed portion 3A formed by a rectangular face plate 1 made of a rectangular thin steel plate and side edges 2 formed by bending four edges of the rectangular face plate 1, and a heat insulating material 3 such as rock wool provided in the recessed portion 3A. It is composed of. This thin steel sheet protects the heat insulating material and secures the rigidity as a heat insulating panel, but enhances the integrity of the heat insulating panel in the event of a fire. Maintain its shape). A bead 4 for strengthening the rigidity of the face plate 1 is formed near the end on the long side of the face plate 1. However, if the face plate is thick and has sufficient rigidity, it is not necessary to provide beads. On the other hand, on the back side of the face plate 1, stud pins 5 are planted at several places near the periphery and near the center, so that the heat insulating material 3 provided in the recess 3A is fixed by the stud pins 5 and the washer 6. Has become. The short side of the face plate 1 is provided with a plurality of stud pin openings 7 for attaching a heat insulating panel to a web (large bone) of a hull to be described later. The side edges 2 on the four sides have a double-folded double-fold structure in which the edges are bent inward to ensure rigidity. However, if the thickness of the steel plate is sufficient, or if the rigidity of the entire panel is increased by bonding the heat insulating material and the steel plate with an adhesive, it may be folded in one. A tongue-shaped piece 8 for forming a joint with an adjacent heat-insulating panel is formed on one long side edge 2 of the face plate 1. That is, as shown in FIG. 2 (b), the face plate 1 is extended as it is for a certain length and is folded back again to form a tongue-shaped piece 8, and is further folded in two at the side edge portion 2. This tongue 8 is provided with a plurality of pop rivet holes 9 for connection with the adjacent heat insulating panel (Fig. 1).

Next, the structure of the fireproof structure by the heatproof panel system adopted by the present invention will be described in detail. FIG. 3 is a front view of a partition wall or a rear view of a deck when a fireproof structure is formed using the heat-insulating panel according to the present invention, and FIGS. 4 (a) and 4 (b) are sectional views taken along the line CC. It is a figure and DD sectional view taken on the line. Fig. 5 (a) is an enlarged view of the seam between the heat insulating panels located in the air space, and Fig. 5 (b) is an enlarged view of the "a" portion in Fig. 4 (a). The heat insulating liner on the web surface. The joint structure of the heat insulation panel is shown. The webs 11 and the stiffeners 12 are arranged in directions orthogonal to each other on a partition wall or deck (hereinafter referred to as “partition wall etc.”) 10 that is to have a fireproof structure, and these form a hull structural member. A large number of standard heat insulation panels F are continuously laid across the web 11 like a tatami mat, and the heat insulation panel F is adjacent to the short side of the heat insulation panel F on the heat insulation liner L provided on the surface of the web 11. While being joined to F, the long side is joined to another adjacent heat insulating panel F at the tongue 8 of the heat insulating panel F located on the following air space. That is, the heat insulating panel F forms a joint between the heat insulating panel on the web surface and the adjacent heat insulating panel on the air space.

As is clear from FIG. 4 (a), an air space 13 is formed between the heat insulating panel F and the partition wall 10 or the like, and the conventional heat insulating material is adhered to the partition wall or the like by a close mounting method ( The main feature of the fireproof structure for a ship according to the present invention lies in the fact that the system shown in FIG. 9) is replaced by a heatproof panel system having an air space 13. Since the air space 13 is maintained, a gap b is allowed at the joint with the adjacent heat insulating panel F as shown in FIG. 5 (a). In other words, even if there is a gap b between the heat shield panels due to the air space 13, the heat transfer through this gap b is not directly transmitted to the hull structural members but is transmitted through the air space 13 so that the structure as a fireproof structure is provided. Performance is not impaired. By allowing the gap b, the mounting accuracy of the heat insulating panel F does not have to be so severe, and therefore the installation work on site becomes easy.

Next, the joint structure of the heat insulating panel on the web surface will be described in detail. FIG. 5 (b) is a view showing a basic joint structure mode of the heat insulating panel on the web surface. When the hull structural member is made of aluminum, two rows of the female threaded studs 14 made of aluminum are preliminarily arranged in the longitudinal direction of the width of the web 11 at intervals matching the stud pin openings 7 of the heat insulating panel F described above. The female screw stud 14 is fixed, and a steel stop pin 15 is embedded in the female screw stud 14. A heat insulating liner L made of a heat insulating material such as rock wool is provided on the surface of the web 11 so as to penetrate the stop pin 15. Then, on the upper surface of the heat insulating liner L, the end portion of the heat insulating panel F is inserted into the stud pin opening 7 (having a diameter d sufficiently larger than the diameter of the stop pin 15) so that the adjacent heat insulating panel F is The heat insulating panel F is fixed to the surface of the web 11 with the heat insulating liner L interposed therebetween by attaching the washer 16 to the stop pin 15 with a gap c therebetween. As described above, the heat insulating panel F is mounted on the surface of the web 11 which is the hull structural member via the heat insulating liner L, so that the gap c can be allowed as shown in FIG. 5 (b).

That is, heat is not directly transmitted to the web 11 even if there is a gap c between the heat insulating panels. Since the clearance c is allowed, the mounting precision of the heat insulating panel is not so strict and the mounting becomes easy. When the structural member of the hull is made of aluminum, the reason why the steel retaining pin 15 is screwed into the female threaded stud 14 made of aluminum is that if the female threaded stud made of steel cannot be welded to the aluminum hull, Also, if the retaining pins are made of aluminum, they will melt first in the event of a fire and the heat insulating panel will separate from the bulkhead or deck. The washer 16 for fixing the heat insulating panel may be a spring washer, but a button washer is preferable from the viewpoint of heat insulation. When the hull structural member is made of steel, the steel retaining pin 15 is used as it is as a stud pin directly fixed to the hull structural member.

6 (a) to 6 (f) show modified examples of the joint structure on the web surface. As described above, in order to allow the gap c between the heat insulating panels, the heat insulating liner L made of a heat insulating material such as rock wool is directly exposed to the fire side through this gap. Therefore, in these modified examples, the heat insulating liner L is prevented from being directly exposed to the flame in the event of a fire, and the appearance of the joint is improved. Except for special notes, the configuration is the same as that of FIG. 5B, the same components are designated by the same reference numerals, and the description thereof will be omitted. In (a), a thin steel plate is interposed between the heat insulating liner L and the heat insulating panel F. This prevents the surface of the heat insulating liner L from being directly exposed to the fire side via the gap c. (b) shows a thin steel plate 18 laid flat on the upper surface of the heat insulating panel F between the heat insulating panel F and the adjacent heat insulating panel F so as to cover the gap c. Fixed. In (c), the flat steel plate 18 in (b) above is bent inward at a gap c into a substantially V-shaped portion 19 and is projected into the gap c to close it. In (d), the side edge portion 2 of the thin steel plate surrounding the heat insulating material 3 is bent outward so as to be wound inward again and stopped in the middle to form the locking portion 2a, and the same constitution is made. Adjacent heat insulating panels F are made to face each other, and a connecting member 20 made of an inverted U-shaped thin steel plate is inserted in this facing portion. In this case, button leg snap snaps (hooks having the same cross-sectional shape as the tip shape of the fishing hook) 20a are formed on both legs of the U-shaped connecting member 20, and the connecting member 20 is provided on both sides of the heat insulating panel. As it is inserted along the edge portion 2, the seam portion 20a automatically engages with the locking portion 2a. In (e), two rows of stud pins (consisting of studs 14 and stop pins 15) are arranged in the above example, but in this example, one row of stop pins 15 are planted in the center of the web 11 surface to prevent heat. It is made to protrude from the gap between the panels F, and a thin steel plate 21 is installed between the opposing heat insulating panels F so as to close the gap, and this is fixed together with the heat insulating panel F by attaching a washer 16 to the retaining pin 15. is there. The closing steel plate 21 serves both as a retainer for the heat insulating panel F and for protecting the heat insulating liner L. Contrary to the above example, (f) is the one in which the heat insulating panel F is installed on the surface of the web 11 and the heat insulating liner L is laid on it over the gap c. The fixing procedure of the heat insulating panel F and the heat insulating liner L is the same as the above example.

Here, the construction procedure of the fireproof structure described with reference to FIGS. 3 to 5 will be described. The heatproof panel F and the heatproof liner L are manufactured in advance in a factory. On the surface of the web 11 of the hull structural member, a stud pin including a female screw stud 14 and a retaining pin 15 is driven at predetermined intervals. The heat insulating liner L is pressed from above the stud pins until one surface of the heat insulating liner L hits the surface of the web 11. The stud pin hole 7 position of the heat insulating panel F is aligned with the stud pin position on the surface of the web 11 and the heat insulating panel F is pressed until the heat insulating material 3 of the heat insulating panel F hits the surface of the heat insulating liner L. The washer 16 is attached to the retaining pin 15 to fix the heat insulating panel F. A hole corresponding to the adjacent heat insulating panel F is made with a drill in accordance with the pop rivet opening 9 of the heat insulating panel F, and then the pop rivet is joined. Repeat steps 1 to 3 below to attach the heat shield panel and construct the fire protection structure.

FIG. 7 ((a) is a plan view, (b) is a cross-sectional view) is a heat insulating panel in which the heat insulating panel F and the heat insulating liner L are integrally assembled at the factory in order to simplify the installation work on site. is there.

FIG. 8 ((a) is a plan view, (b) is a cross-sectional view) shows the heat insulation of FIG. 7 in order to prevent heat from entering from the joint part of the heat insulation panel located on the air space and further improve the heat insulation performance. In addition to the heat insulation panel with integrated liner, this insulation material 22 is integrally assembled at the factory so that the lower surface of the joint of the heat insulation panel located in the air space is covered with the insulation material 22. As a result, the heat insulating liner L and the heat insulating material 22 for closing are integrated to form an L shape, which can be assembled in advance in a factory.

[0021]

[Advantage of the Invention] Since the present invention is a heat insulating panel method (Figs. 3 and 4), the weight of the heat insulating material is not influenced by the size (depth) of the web as compared with the conventional method (Fig. 9). . Moreover, since the heat insulating panel system of the present invention has an air space, and this air space contributes as a part of the heat insulating material, the heat insulating panel has a thickness of the heat insulating material more than that of the conventional heat insulating material of the close mounting type. Since it can be made thinner, the weight of the fireproof structure can be further reduced.

Since a joint between the heat-insulating panels is formed on the heat-insulating liner on the web surface to which the heat-insulating panel is attached, and a joint with another heat-insulating panel is formed in the air space, the heat-insulating panel is formed. A gap can be allowed at the joint portion of. By allowing this gap, the accuracy of mounting the heat shield panel is not so strict, and the heat shield panel can be easily installed in the field. In addition to this, the stud pin opening of the heat insulating panel is made sufficiently larger than the diameter of the stud pin provided on the web surface, so that the heat insulating panel can be mounted more easily.

Since the heat insulating panel and the heat insulating liner are prefabricated at the factory, the work efficiency can be improved in the field.

Since neither the waterproof property nor the bonding strength is required for the joint portion of the heat insulating panel, a simple combination of the heat insulating panel and the heat insulating liner, in which the side edge of the heat insulating panel is simply folded, is used as a fireproof structure of a ship. The required performance can be satisfied.

[Brief description of drawings]

FIG. 1 is a plan view of a heat insulating panel used in the fire protection structure of the present invention.

2A is a sectional view taken along the line AA in FIG. 1, and FIG. 2B is a sectional view taken along the line BB in FIG.

FIG. 3 is a front view or a back view of a case where a fireproof structure is formed on a partition wall or a deck using the heatproof panel according to the present invention.

4 (a) and 4 (b) are a sectional view taken along the line CC and a sectional view taken along the line DD of FIG.

[Fig. 5] (a) is an enlarged view of the joint between the heat insulating panels located on the air space, and (b) is "in Fig. 4 (a)".
FIG. 3 is an enlarged view of a part “a” showing a joint structure of the heat insulating liner and the heat insulating panel on the web surface.

6 (a) to 6 (f) are views showing a modified example of the joint structure of the heat insulating liner and the heat insulating panel on the web surface in FIG. 5 (b).

7 (a) and 7 (b) are a plan view and a sectional view of a heat insulating panel in which a heat insulating liner is integrally combined with the heat insulating panel of FIG.

8 (a) and 8 (b) show a heat insulating panel in which the heat insulating liner of FIG. 7 is integrated and a lower surface of a joint portion of the heat insulating panel located on the air space is closed by a heat insulating material. It is a top view and a sectional view.

[Fig. 9] (a) and (b) show the heat insulating construction drawing by the conventional heat insulating material close mounting method, (a) shows the heat insulating construction drawing in which the heat insulating material is closely attached so as to surround the stiffener, and (b) shows the web. It is a heat-insulating construction drawing in which a heat insulating material is attached so as to surround so as to surround.

[Explanation of symbols]

 F ... Heat-insulating panel L ... Heat-insulating liner 1 ... Face plate 2 ... Side edge 3 ... Insulating material 3A ... Recess 7 ... Stud pin opening 8 ... Tongue-shaped piece 9 ... Pop rivet opening 10 ... Partition or deck 11 ... Web 12 ... Stiffener 13 ... Air space 14 ... Female thread stud 15 ... Set pin 16 ... Washer

Front page continuation (72) Masakazu Yamamoto, 3-1, 1-1 Higashikawasaki-cho, Chuo-ku, Kobe-shi, Hyogo Kawasaki Heavy Industries Ltd. Kobe factory (72) Naoo Manabe 3--1, Higashikawasaki-cho, Chuo-ku, Kobe, Hyogo Prefecture No. 1 Kawasaki Heavy Industries, Ltd. Kobe factory (72) Kenichi Onoda 3-1-1 Higashikawasaki-cho, Chuo-ku, Kobe, Hyogo Prefecture 1-1 1-1 Kawasaki Heavy Industries Ltd., Kobe factory (72) Inventor Takuo Okada, Kobe, Japan 3-1-1 Higashikawasaki-cho, Tokyo Kawasaki Heavy Industries Ltd. Kobe factory

Claims (9)

[Scope of utility model registration request] 1. A heat insulating liner having a width substantially the same as the width of the web surface is provided on the web surface of the hull structural member such as a partition wall or deck at a predetermined interval, and the heat insulating liner is adjacent to the upper surface of the heat insulating liner. A plurality of heat insulating panels are continuously straddled between the webs so as to form a joint between the heat insulating panels and form an air space between the heat insulating panels and another adjacent heat insulating space on the air space. A fire protection structure for a ship, characterized in that a joint with a panel is formed. 2. A flat face plate made of a thin steel plate and a side edge portion formed by bending four sides of the face plate to form a concave portion, and a heat insulating material such as rock wool is provided in the concave portion and positioned on the hull web surface. A stud pin hole with a diameter larger than the stud pin diameter is provided at both ends of the face plate according to the pitch of the stud pins on the web surface, and one side edge of the two sides located on the air space Is a tongue-shaped piece, and openings for pop rivets are provided in the tongue-shaped piece at predetermined intervals, which is a heat-insulating panel used for a fireproof structure of a ship. 3. The fire protection structure for a ship according to claim 1, wherein a protective steel plate is integrally attached to the upper surface of the heat insulating liner or the upper surface of the heat insulating panel at the joint portion of the adjacent heat insulating panels on the web surface. . 4. A side edge portion located on the web surface of the heat insulating panel is folded, and a protective steel plate having button patches at both ends is fitted in the folded portion. Fireproof structure of the described ship. 5. A joint structure for a heat insulating panel on a web surface, wherein two rows of stud pins are planted in the width direction of the web surface on the web surface, said stud pins are inserted through a heat insulating liner and a heat insulating panel and fixed by a washer. The fire protection structure for a ship according to claim 1, wherein the fire protection structure is formed. 6. A row of stud pins that penetrate the joints of adjacent heat shield panels on the web surface are planted, and a protective steel plate is installed between adjacent heat shield panels so as to close the joints. 2. The fireproof structure for a ship according to claim 1, wherein the washer provided on the pin presses the protective steel plate to fix the adjacent heat insulating panel. 7. The heat-insulating liner according to claim 1 is a heat-insulating panel with a steel plate, and the heat-insulating panel with a steel plate covers a seam portion of the heat-insulating panel directly provided on the web surface. 1. The fireproof structure for a ship according to 1. 8. A heat-insulating panel for use in a fireproof structure for a ship, wherein a heat-insulating liner is integrally pre-assembled at an end located on the web surface of the heat-insulating panel according to claim 2. 9. A heatproof panel for use in a fireproof structure of a ship, characterized in that the heatproof panel according to claim 8 is integrally assembled with a heat insulating material so as to close the lower surface of the joint part of the heatproof panel located on the air space.