JP3714577B2 - Inboard panel type thermal insulation method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a heat insulation method in a cargo ship of a freezing ship, and more specifically, in a multi-layered structure partitioned into a plurality of levels by a deck, a hull comprising a plurality of decks branched laterally from the inner side of a ship-side outer wall. Insulation panel type thermal insulation method that enables continuous thermal insulation by layer by using thermal insulation panels provided on the inner side of the ship's outer wall and on the lower side of the deck for the structure, and filling thermal insulation that fills the gap between them. About.
[0002]
[Prior art]
In the conventional thermal insulation method for freight vessels of frozen ships, the heat insulation structure inside the ship side outer wall, the horizontal partition wall inside the ship and the bottom of the heat insulation deck is made of glass wool or foamed polyurethane molded stiffeners. Cut into predetermined dimensions between (frames), stack and spread multiple sheets, and provide vertical and horizontal vertical wooden joists through bolts welded to the surface of the stiffener face. It is known that a glass wool or polyurethane foam molded article is inserted between them and nailing with a wooden plywood to form a lining board, and a protective sparring is provided thereon.
[0003]
In the above-mentioned conventional construction method, both surface materials and joists have been constructed mainly with wood. However, since loading and packing are diverse and a strong wall structure is required, a great amount of time and labor are required for construction. It required power and construction experience.
Furthermore, there is a problem that the intrusion heat from the ship side outer wall, the upper deck, the horizontal partition wall, etc. is transmitted through the stiffeners of the hull member and the wooden plywood mounting bolts to raise the temperature inside the ship.
[0004]
Further, since the molded glass wool or foamed polyurethane is cut and fixed to the stiffener interval, a gap is formed at the joint of the laminated heat insulating material, and there is a problem of lowering the heat insulating effect.
[0005]
Moreover, in the conventional method using a heat insulation panel, the side wall heat insulation, the ceiling heat insulation, and the floor heat insulation in the ship are performed by joining a plurality of heat insulation panels. However, these methods have the following problems. That is,
a, a gap is generated between the panels to be joined, the heat insulation effect is lowered, and the quality of the frozen material cannot be maintained.
For this reason, this countermeasure is disclosed in Japanese Patent Laid-Open No. 7-33080. The above invention relates to a heat insulating panel of a plurality of molded products in a frozen cargo ship's freighter, wherein a side wall heat insulating panel of the heat insulating panel is adjacent to a ceiling heat insulating panel and a floor heat insulating panel, and the side wall heat insulating panel includes It is related to the heat insulation structure and heat insulation method of adjacent adjacent parts,
A heat insulating material is injected and filled into the gaps between the corner portions where the side wall heat insulating panels of the heat insulating panel abut the ceiling heat insulating panel and the floor panel and the adjacent portions where the side wall heat insulating panels are arranged side by side.
[0006]
The heat insulation method of the present invention relates to a refrigerated cargo ship having a substantially rectangular parallelepiped shape within a single ship structure, and does not correspond to a multipurpose refrigeration composite ship having a plurality of layers.
On the other hand, a large refrigerated cargo ship is composed of a plurality of hierarchies. For example, in the case of a multi-tier structure partitioned by a plurality of deck decks, each tier may be placed in a separate cooling mode. Therefore, it is necessary to form a thermally insulated space.
[0007]
In addition, in the case of a heat insulation method using a heat insulation panel, for example, as seen in the above-mentioned invention, since the part corresponding to the curved surface of the ship side outer wall mainly uses an upright heat insulation panel, the heat insulation space utilizing the shape peculiar to the ship shape is used. It is difficult to obtain and in the case of refrigerated freighter vessels, they are satisfied with low space utilization.
[0008]
[Problems to be solved by the invention]
The present invention has been made in view of the above problems,
In addition to providing a uniform and efficient thermal insulation panel method that requires less construction time and construction experience, which has been a problem in the past, it enables effective use of curved surfaces peculiar to ship shapes, and multiple levels The purpose is to provide a panel-type construction method that enables complete thermal insulation by hierarchy even for composite vessels with multi-purpose cooling modes.
[0009]
That is, for the problems of the conventional panel-type heat insulation method, establish the airtightness of the joint part between the panels and establish the heat insulation,
For the establishment of a complete thermal insulation structure for multiple levels of a composite ship consisting of multiple levels, it is possible to branch continuously by filling the thermal insulation material at the branch point from the side wall thermal insulation formed inside the ship side outer wall to the ceiling thermal insulation of each level. Enables the formation of a heat insulation structure to achieve complete heat insulation by level,
In addition, effective use of a curved ship space peculiar to a ship shape is made possible by heat insulation on the side wall formed in a polygonal line shape.
[0010]
In addition, the formation of the panel group which aimed at the establishment of the airtightness and heat insulation of the joint between the above panels aims at the establishment of the airtightness and heat insulation at the joint between the panels by the joint metal fitting that can be filled with the heat insulating material. Further establishment of heat insulation is made possible by using heat insulation bolts for the mounting members.
[0011]
[Means for Solving the Problems]
Therefore, the multi-layered ship thermal insulation method of the present invention is
In heat insulation construction of a composite ship divided into multiple levels by a deck,
Thermal insulation panels for ceiling thermal insulation provided along the hull structure below the exposed deck and middle deck deck, and side wall thermal insulation provided from the bottom of the hull to the lower side of the exposed deck along the hull structure inside the outer wall of the ship side The thermal insulation panel group for the ceiling can be insulated by the level of the composite ship by joining each deck through the filling insulation material, and the thermal insulation panel group for ceiling thermal insulation is located under the exposed deck and the middle deck deck. It is attached to the side by joint metal fittings through heat insulation bolts provided on the frame of the hull structure, and then the filler metal is filled in the joint metal fittings. For the curved surface of the shell-shaped frame, a broken line base plate is provided via a support angle piece with a polygonal line apex at each deck connection part of each level and an inclination angle along the curved surface. Attached by a joint bracket via an insulating bolt implanted in the base plate, characterized in that it subsequently filled with a filler insulation material into the joint bracket.
[0014]
Further, the filled heat insulating material according to claim 1 is made possible by filling with urethane foam.
[0015]
Moreover, the upper and lower two layers of the BD deck may be used simultaneously by the hierarchical insulation according to claim 1.
[0016]
[Action]
Therefore, according to the inboard panel type heat insulation method of the present invention, in a composite ship of a plurality of layers,
Insulation panels for ceiling heat insulation and heat insulation for the bottom of the floor provided at the lower part of the exposed deck and middle deck deck, and below the exposed deck deck from the bottom of the hull along the frame of the hull structure inside the outer wall of the ship side Since the joint part is joined to the heat insulation panel group for side wall heat insulation provided over the wall with a heat insulating material, continuous branch insulation is provided by the side wall heat insulation line and a plurality of ceiling heat insulation lines branching from the line. A structure can be formed to form a layered complete thermal insulation structure.
[0017]
That is, the above-mentioned layer-by-layer complete heat insulation structure is, for example, four layers of first, second, third, and fourth layers from the upper side where the BD deck is provided above and below the exposed deck deck, middle deck deck, bottom deck, and middle deck deck. In the hull, a thermal insulation that forms the bottom floor thermal insulation from the bottom of the hull, a thermal insulation panel for side wall thermal insulation that is joined to it by filling thermal insulation, and a thermal insulation panel for ceiling thermal insulation that is below the middle deck deck that is joined to the thermal insulation by filling thermal insulation. As a result, a heat insulating structure in which the third and fourth layers are integrated is formed.
In addition, a thermal insulation panel group for the ceiling thermal insulation under the middle deck deck, a thermal insulation panel group for the sidewall thermal insulation joined to it with the filled thermal insulation material, and a thermal insulation panel group for the ceiling thermal insulation under the exposed deck deck joined with the filled thermal insulation material. Thus, a heat insulating structure in which the first and second layers are integrated is formed.
Note that the BD deck is not provided with a ceiling thermal insulation at the bottom, and the upper and lower layers sandwiching the BD deck are maintained at the same cooling temperature.
[0018]
Furthermore, according to the present invention, the heat insulation panel group for the ceiling thermal insulation on the lower side of the exposed deck and the middle deck deck is attached by the joint metal fitting through the heat insulation bolts planted in the frame of the hull structure of the deck, Since the filling heat insulating material is filled after the attachment, the airtightness and heat insulating property at the joint portion can be maintained, and the dimensional change of the heat insulating panel based on the temperature change can be absorbed.
[0019]
Furthermore, according to the present invention, the heat insulating panel group for side wall heat insulation has a polygonal line apex for each deck connection portion of each layer with respect to the curved surface inside the ship side outer wall, and the inclination angle is changed along the curved surface. Since a polygonal base plate is provided on the frame of the curved surface through the support angle piece, it is attached by joint fittings through heat insulation bolts planted on the base plate, and after installation, the filled heat insulating material is filled. In addition to maintaining airtightness and heat insulation at the joint, it is possible to absorb changes in the dimensions of the heat insulation panel due to temperature, and to effectively use the curved space unique to the hull.
[0020]
Further, according to the invention described in claim 2 , since the filled heat insulating material is filled with polyurethane foam, it is possible to maintain airtightness and heat insulating property by the filled heat insulating material in the gap of the filling portion. At the same time, it is possible to absorb the variation in the mounting position caused by the expansion and contraction of the equipment based on the temperature change.
[0021]
According to the invention described in claim 3, the space formed between the exposed deck deck, the middle deck deck and the ship bottom deck is formed as a complete heat insulating structure by the continuous heat insulating structure. The upper and lower two layers divided by the BD deck can be used simultaneously under the same cooling mode.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are merely illustrative examples and not intended to limit the scope of the present invention unless otherwise specified. Absent.
FIG. 1 is a cross-sectional view showing the outline of the inboard panel type thermal insulation method of the present invention, which was performed on a composite ship of a four-level frozen cargo ship, and FIG. 2 is a detailed cross-sectional view of W1 in FIG. 3 is a detailed cross-sectional view of W2 in FIG. 1, FIG. 4 is a detailed cross-sectional view of W3 in FIG. 1, FIG. 5 is a detailed cross-sectional view of W4 in FIG. 1, and FIG. It is a detailed cross-sectional view of W5, (B) is a figure which shows the use condition of the heat insulation bolt and joint metal fitting of (A).
[0023]
As shown in FIG. 1, the inboard panel type thermal insulation method of the present invention is an exposed deck deck 12a, a middle deck deck 12b, a bottom deck 12c, and a BD provided on a hull made of a ship side outer wall 11 and a hull bottom 10. In the four-layer ship formed by the decks 13a and 13b, side wall heat insulation 30a, 30b, 30c and 30d are provided on the inner side of the ship side outer wall, a ceiling heat insulation 31 is provided below the decks 12a and 12b, and the bottom deck 12c is provided. Has a structure in which a floor heat insulation 32 is provided.
[0024]
FIG. 1 shows a schematic heat insulation of a four-tiered ship formed by an exposed deck deck 12a, a middle deck deck 12b, a bottom deck 12c, and a BD deck 13a, 13b provided on a hull composed of a ship side outer wall 11 and a hull bottom 10. The structure is shown. As shown in the figure, the frame structure that forms the hull structure is an exposed deck deck 12a, a BD deck 13a, a middle deck deck 12b, and a BD deck 13b from the upper side of the curved frame 15a provided inside the ship side outer wall 11. And the deck 15c forming the floor deck 12c are horizontally branched to form a branch-like structure.
[0025]
Base plates 22 a, 22 b, 22 c, and 22 d that form broken lines of bent line base plates having apexes at the branch points of the frames of the respective floor decks of the branch-like structure are formed on the curved frame 15 a inside the ship-side outer wall 11. And a first-layer side wall heat shield 30a, a second-layer side wall heat shield 30b, a third-layer side wall heat shield 30c, and a fourth-layer side wall heat shield 30d are provided on each folded side to constitute a side wall heat shield.
The base plates 22a, 22b, 22c, and 22d are structured to be supported by the curved frame 15a by a plurality of support angle pieces 21.
[0026]
Further, the exposed deck deck 12a and the middle deck deck 12b are provided with a ceiling heat insulation 31 on the frame 15b and a ship floor heat insulation 32 on the ship bottom deck 12c.
In addition, the said side wall heat insulation 30a, 30b, 30c, 30d and the ceiling heat insulation 31 are set as the structure containing the some joint metal fitting 16 and the heat insulation panel 20, respectively.
[0027]
FIG. 2 is a detailed view of W1 showing the structure of the ceiling heat insulation 31 and the first layer side wall heat insulation 30a provided on the exposed deck deck 12a of FIG. 1, and the heat insulation structure of the connecting portion between the ceiling heat insulation 31 and the side wall heat insulation 30a. FIG.
As shown in the figure, the ceiling heat shield 31 has the heat insulation panel 20 arranged substantially horizontally by the joint metal fitting 16 fixed to the frame 15b suspended by heat insulation bolts 16a and 16b and the terminal joint metal fitting 16d having a wood liner 17b. It is configured to be installed.
[0028]
In addition, although the situation where the said heat insulation panel 20 is suspended and fixed to the flame | frame 15b horizontally is shown in FIG. 6 (A), as shown in the figure, the heat insulation panel 20 arrange | positioned in the left-right parallel form. , 20 are clamped up and down by the joint metal fitting 16, and the end of the heat insulation bolt 16 a and the suspension heat insulation bolt 16 b penetrating from the top and bottom of the central portion of the clamp part are nut-shaped heat insulation as seen in FIG. The member 16c is fastened and fixed, and the structure is designed to maintain the airtightness and heat insulating property at the connection portion of the heat insulating panel by filling the heat insulating material after fixing.
[0029]
The first level side wall heat insulation 30a is attached by joint joints 16 and heat insulation bolts 16a so that the joints of the heat insulation panel 20 are sequentially stacked on the base plate 22a provided on the frame 15a from the lower part of the level. The terminal of the panel is attached by a terminal joint fitting 16d having a wood liner 17b and a heat insulating bolt 16a.
The joint with the ceiling heat insulation 31 is made completely airtight by a filling heat insulating material 26 by injecting polyurethane foam, and the inside of each joint fitting 16 is made completely airtight by the filling heat insulating material 26. A continuous heat insulator is formed on the side wall heat shield 30a.
[0030]
FIG. 3 shows the structure of the ceiling heat insulation 31, the second layer side wall heat insulation 30b, and the third layer side wall heat insulation 30c provided on the middle deck 12b of FIG. It is a detailed cross-sectional view of W2 shown.
As shown in the figure, the heat insulation 31 for the ceiling has a structure in which the heat insulation panels 20 are arranged substantially horizontally in parallel via the joint metal fitting 16 fixed to the frame 15b in a suspended manner by heat insulation bolts 16a and 16b. Is provided with a cooling air blowing grating 19.
In addition, since the said ceiling heat insulation 31 also has the floor heat insulation effect | action with respect to a 2nd hierarchy, the ceiling thermal insulation provided in the middle deck deck 12b forms the adiabatic boundary of a 2nd hierarchy and a 3rd hierarchy.
[0031]
Further, the third level side wall heat insulating 30c is attached by joint joints 16 and heat insulating bolts 16a so that the joint portions of the heat insulating panels 20 are sequentially stacked on the base plate 22c provided on the frame 15a from the lower side of the level. The terminal of the panel 20b is attached by a terminal joint fitting 16d having a wood liner 17b and a heat insulating bolt 16a.
The joint with the ceiling heat shield 31 has an airtight heat insulating structure by blowing and filling with a filling heat insulating material 26 together with a branch structure portion where the frame 15b of the middle deck 12b branches horizontally.
[0032]
Further, the second layer side wall heat insulating 30b is provided with a plurality of receiving pieces 17a at appropriate intervals from the lower end portion of the obliquely inclined base plate 22b, and the heat insulating panels 20, 20,. The lower end of the installed heat insulation panel 20 uses a terminal joint metal fitting 16d having a wood liner 17b, and the intermediate joint uses a joint metal fitting 16, which is attached to the base plate via heat insulation bolts 16a. Has a hermetic heat insulating structure by spraying and filling the filling heat insulating material 26.
[0033]
FIG. 4 is a detailed cross-sectional view of W3 showing the heat insulating structure of the connection portion near the base of the BD deck 13a / 13b (shown in the case of 13b) in FIG.
In the case of this deck, the upper and lower two layers sandwiching the deck are provided so that they can be used simultaneously at the same freezing temperature, and the structure of the deck that hits the boundary between the upper and lower two layers is for placing stored frozen cargo. However, it does not have a function to prevent the flow of cool air above and below.
[0034]
Therefore, as shown in the figure, the base of the deck 13b is placed and fixed on a support metal fitting 15c provided on the inner frame 15a of the ship-side outer wall 11, and a cargo loading wood deck 23 is provided on the deck 13b. is there.
[0035]
The third-layer side wall heat insulating 30c has a structure in which the lower heat insulating panel 20a is sandwiched between the receiving piece 17a and the base plate 22c, and the fourth layer side heat insulating 30d is fixed on the base plate 22d by the receiving piece 17a by receiving the upper end of the upper heat insulating panel 20b. The heat insulation panel 20 located below the base plate 22d is fixed to the base plate 22d by the joint metal fitting 16 and the heat insulation bolt 16a, and the base mounting portion (support metal fitting) of the joint metal fitting 16 and the frame 15b of the BD deck 13b is fixed. 15c (including 15c) is sprayed and filled with the filling heat insulating material 26, and the side wall heat insulation 30c and 30d inside the ship side outer wall is continuously insulated.
[0036]
FIG. 5 is a detailed cross-sectional view of W4 showing the heat insulation structure of the floor heat insulation 32 and the fourth layer side wall heat insulation 30d provided on the ship bottom deck 12c of FIG. 1 and the heat insulation structure of the connection between the floor heat insulation and the side wall heat insulation. FIG.
As shown in the figure, the floor thermal insulation 32 is composed of a tree root (not shown) laid on the bottom of the ship, and a filling heat insulating material 26 covering the space between the tree roots and the ends of the frame 15a of the hull structure. A water-resistant plywood is provided with 27.
A cooling air blowout grating 19 is provided on the water-resistant plywood 27 at an appropriate interval.
[0037]
Further, the fourth-layer side wall heat shield 30d receives the lower ends of the plurality of heat insulation panels 20 on the inclined base plate 22d provided on the hull structure frame 15a inside the ship side outer wall 11 via the plurality of support angle pieces 21. The ends of the heat insulation panel 20a supported by the receiving piece 17a are supported by the piece 17a, and the connection ends thereof are attached and fixed via the joint fitting 16 by the heat insulation bolts 16a. The joint metal fitting 16d is configured to be held and fixed, and the joint metal fittings 16,..., 16d after fixation are filled with a filling heat insulating material 26, and the airtightness and heat insulation of the connecting portion and the ship floor floor heat insulation 32 are provided. A continuous heat insulating part is formed in the connecting part between them, and airtightness and heat insulating property between the external members are maintained.
[0038]
【The invention's effect】
With the above configuration of the present invention, a cargo ship of a multi-level frozen ship has a multi-purpose cooling mode consisting of a plurality of hierarchies that can effectively use the space of the curved surface part peculiar to the hull as well as airtightness and heat insulation. Heat insulation construction of a composite ship is possible, and heat insulation construction can be performed quickly and accurately by a compact, uniform panel type heat insulation structure.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a cross-sectional view showing an outline of an inboard panel-type thermal insulation method according to the present invention, which was performed on a composite ship of a four-level frozen cargo ship.
FIG. 2 is a detailed cross-sectional view of W1 of FIG.
FIG. 3 is a detailed cross-sectional view of W2 of FIG.
4 is a detailed cross-sectional view taken along line W3 of FIG.
FIG. 5 is a detailed cross-sectional view of W4 of FIG.
6A is a detailed cross-sectional view taken along the line W5 in FIG. 1, and FIG. 6B is a diagram illustrating a use state of the heat insulation bolt and the joint fitting in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Hull bottom part 11 Ship side outer wall 12a Exposed deck deck 12b Middle deck deck 12c Bottom deck 13a, 13b BD deck 15a, 15b, Frame 15c Support metal fitting 16 Joint metal fitting 16a, 16b Heat insulation bolt 16c Nut-like heat insulation member 16d Terminal joint metal fitting 17a Piece 17b Liner 19 Grating 20, 20a, 20b Thermal insulation panel 21 Support angle piece 22a, 22b, 22c, 22d Base plate 23 Wood deck 26 Filling thermal insulation 30a First level side wall heat insulation 30b Second level side wall heat insulation 30c Third level side wall heat insulation 30d 4th floor side wall heat insulation 31 Ceiling heat insulation 32 Floor heat insulation

Claims (3)

In heat insulation construction of a composite ship divided into multiple levels by a deck,
Thermal insulation panels for ceiling thermal insulation provided along the hull structure below the exposed deck and middle deck deck, and side wall thermal insulation provided from the bottom of the hull to the lower side of the exposed deck along the hull structure inside the outer wall of the ship side The thermal insulation panel group for the ceiling can be insulated by the level of the composite ship by joining each deck through the filling insulation material, and the thermal insulation panel group for ceiling thermal insulation is located under the exposed deck and the middle deck deck. It is attached to the side by joint metal fittings through heat insulation bolts provided on the frame of the hull structure, and then the filler metal is filled in the joint metal fittings. For the curved surface of the shell-shaped frame, a broken line base plate is provided via a support angle piece with a polygonal line apex at each deck connection part of each level and an inclination angle along the curved surface. Attached by a joint bracket via an insulating bolt implanted in the base plate, Senso panel type insulation construction method, characterized in that filling the filler insulation material then the joint bracket. 2. The inboard panel type heat insulation method according to claim 1 , wherein the filling heat insulating material is made possible by filling with urethane foam . 2. The inboard panel type heat insulation method according to claim 1 , wherein the heat insulation by level enables simultaneous use of the upper and lower two layers of the BD deck.

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