Fireproof insulation structure of composite material hull and installation method thereof

Abstract

The present invention proposes a fireproof insulation structure of a composite shell and an installation method thereof. The fireproof insulation structure of the composite shell includes a hard shell made of composite material and a fireproof insulation cloth located on the outer side of the hard shell. The fireproof insulation cloth penetrates the thickness direction of the hard shell to fix the fireproof insulation cloth on the outer side of the hard shell. When the hard shell is formed by splicing two flat hard shells, the edge of the fireproof insulation cloth on the outer side of the flat hard shell is located on the outer side of the flat hard shell, and the fireproof insulation cloth at the joint of the two adjacent flat hard shells is extruded. The fireproof insulation structure of the composite hull proposed by the present invention is aimed at the hard shell made of composite material, and fasteners are passed through the hard shell and then the fireproof insulation cloth is fixed, thereby meeting the performance requirements of the composite hull for fireproof insulation.

Description

Technical Field

[0001] The present invention relates to the technical field of ship insulation design, and in particular to a fireproof insulation structure of a composite material ship hull and an installation method thereof. Background Art

[0002] According to the SOLAS Convention and other conventions and regulations, a ship's bulkheads and decks must meet the corresponding fire resistance rating requirements. When the hull structure itself cannot meet the fire resistance requirements, additional fireproof insulation materials must be installed to meet the corresponding fire protection requirements. Currently, the installation process for fireproof insulation materials on steel ships is relatively mature. Typically, the rivets are first welded to the hull structure, and then the insulation material is laid according to the insulation construction requirements.

[0003] In recent years, composite materials have gradually begun to be used in ship hull structures. Due to the special nature of composite materials, welding operations cannot be carried out and the fire resistance of the materials is worse than that of metal materials. The installation process of conventional steel ship fire insulation cannot be implemented on the composite hull structure, and the original construction process cannot meet the fire protection requirements of the composite hull structure. Summary of the Invention

[0004] The main purpose of the present invention is to provide a fireproof insulation structure of a composite material hull structure and an installation method thereof, aiming to facilitate the design of fireproof insulation of the composite material hull structure to meet the fireproof insulation requirements of the hull structure.

[0005] To achieve the above-mentioned purpose, the present invention provides a fireproof insulation structure of a composite hull, comprising a hard shell made of composite material and a fireproof insulation cloth located on the outer side of the hard shell. Fasteners penetrate the thickness direction of the hard shell to fix the fireproof insulation cloth on the outer side of the hard shell. When the hard shell is composed of two flat hard shells spliced ​​together, the edge of the fireproof insulation cloth on the outer side of the flat hard shell is located on the outer side of the flat hard shell, and the fireproof insulation cloth is extruded at the joint of the two adjacent flat hard shells.

[0006] Preferably, the distance between the center of the fastener and the center line of the joint of the fireproof insulation cloth is 40mm~60mm, and the edge of the fireproof insulation cloth protrudes 5mm~15mm outside the edge of its corresponding flat hard shell.

[0007] Preferably, the fasteners include studs, which are arranged on both sides of the joint between two adjacent flat hard shells, and the distance between the center line of the studs and the joint between the two adjacent flat hard shells is 40mm~60mm.

[0008] Preferably, the stud includes a stud base and a locking piece sleeved on the stud base, and the length of the stud base is 8 mm to 12 mm longer than the thickness of the fireproof insulating cloth.

[0009] Preferably, when the fireproof insulating cloth on the outer side of the flat hard shell includes an inner layer of fireproof insulating cloth and an outer layer of fireproof insulating cloth, the splicing points of the inner layer of fireproof insulating cloth and the outer layer of fireproof insulating cloth are staggered, and the distance between the center lines of the splicing points of the inner layer of fireproof insulating cloth and the outer layer of fireproof insulating cloth is less than or equal to 100 mm.

[0010] Preferably, when the hard shell is composed of two flat hard shells and an insulating sleeve, the bottom of the hard shell of the insulating sleeve is retracted by a height of h, where h is the thickness of the fireproof insulating cloth, and the flat hard shell is retracted by 5mm~15mm relative to the edge of the fireproof insulating cloth outside it.

[0011] The present invention further provides a method for installing a fireproof insulation structure based on the composite material hull, comprising the following steps:

[0012] A plurality of nails are installed on the hard shell according to the preset positions, and a plurality of fireproof insulation cloths are cut according to the sizes of all the hard shells;

[0013] Attach all fireproof insulation cloths to one side of the rigid shell. After the fireproof insulation cloths pass through the base of the studs, cover them with locking plates to lock the studs and thus fix the fireproof insulation cloths. The fireproof insulation cloths are squeezed and set at the joints of two adjacent flat rigid shells. The joints of multiple layers of fireproof insulation cloths are staggered. The fireproof insulation cloths are squeezed and set at the joints of the rigid shells containing insulating sleeves.

[0014] Perform surface treatment on the outer layer of the fireproof insulation cloth.

[0015] Preferably, before the step of providing a plurality of nails on the hard shell according to preset positions and cutting a plurality of fireproof insulating cloths according to the sizes of all the hard shells, the step further includes:

[0016] Clean the surface of the hard shell;

[0017] Draw lines on the hard shell to locate the positions of the studs.

[0018] Preferably, when a plurality of studs are inserted into the hard shell according to preset positions, the stud base is fixed to the marked position of the hard shell using stud glue and checked for debonding.

[0019] Preferably, when the outer layer of the fireproof insulating cloth is subjected to surface treatment, insulating putty, aluminum foil or flame-retardant white cloth is coated on the outer side of the fireproof insulating cloth.

[0020] The fireproof insulation structure of the composite hull proposed by the present invention has the following beneficial effects:

[0021] 1. For the hard shell made of composite materials, fasteners are passed through the hard shell and then the fireproof insulation cloth is fixed, thus meeting the performance requirements of the composite hull for fireproof insulation;

[0022] 2. This fireproof insulation structure has the advantages of simple structure, easy implementation and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the external structure of the first embodiment of the fireproof insulation structure of the composite material hull of the present invention;

[0024] Figure 2a This is a schematic cross-sectional view of the first embodiment of the fireproof insulation structure of the composite material hull of the present invention before splicing;

[0025] Figure 2b This is a schematic cross-sectional view of the first embodiment of the fireproof insulation structure of the composite material hull of the present invention after splicing;

[0026] Figure 3a This is a schematic cross-sectional view of the second embodiment of the fireproof insulation structure of the composite material hull of the present invention before splicing;

[0027] Figure 3b This is a schematic cross-sectional view of the second embodiment of the fireproof insulation structure of the composite material hull of the present invention after splicing;

[0028] Figure 4a This is a schematic cross-sectional view of the third embodiment of the fireproof insulation structure of the composite material hull of the present invention before splicing;

[0029] Figure 4b This is a schematic cross-sectional view of the third embodiment of the fireproof insulation structure of the composite material hull of the present invention after splicing;

[0030] Figure 5 The figure is a flow chart of the method for installing the fireproof insulation structure of the composite material hull of the present invention.

[0031] In the figure, 1-pin, 2-splicing line, 3-flat hard shell, 4-fireproof insulating cloth, 5-insulating block, 51-hard shell on the insulating block.

[0032] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0033] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] It should be noted that in the description of the present invention, the terms "transverse," "longitudinal," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] The present invention provides a fireproof insulation structure of a composite material hull.

[0036] Reference Figures 1 to 2b The present invention proposes a first embodiment of a fireproof insulation structure for a composite material hull. In this embodiment, a fireproof insulation structure for a composite material hull includes a hard shell made of composite material and a fireproof insulation cloth located on the outer side of the hard shell (the fireproof insulation cloth can be made of conventional materials in the existing technology, and this embodiment is not limited to this). The fasteners penetrate the thickness direction of the hard shell to fix the fireproof insulation cloth on the outer side of the hard shell. When the hard shell is composed of two flat hard shells spliced ​​together, the edge of the fireproof insulation cloth on the outer side of the flat hard shell is located on the outer side of the flat hard shell, and the fireproof insulation cloth is extruded at the joint of the two adjacent flat hard shells.

[0037] It should be noted that the fireproof insulating cloth extrusion setting means that the fireproof insulating cloth at the edges of the two flat hard shells protrudes outside their edges. Therefore, when installing the fireproof insulating cloth on the outside of the two flat hard shells, the flexible fireproof insulating cloth at the edges will be squeezed, thereby ensuring the fireproof insulation performance at the joint of the two adjacent flat hard shells.

[0038] Specifically, the distance between the center of the fastener and the center line of the joint of the fireproof insulation cloth is 40mm~60mm, and the edge of the fireproof insulation cloth protrudes 5mm~15mm outside the edge of its corresponding flat hard shell.

[0039] In this embodiment, the fasteners include studs, which are provided on both sides of the joint of two adjacent flat hard shells. The distance between the center line of the studs and the joint of the two adjacent flat hard shells is 40mm~60mm ( Figure 2b (The setting of 50mm is used as an example for specific explanation).

[0040] The studs consist of a stud base and a locking plate that fits over the base. The stud base is 8mm to 12mm longer than the thickness of the fireproof insulation cloth. The stud base can be secured with two M4 x 12mm stainless steel self-tapping screws.

[0041] The fireproof insulation structure of the composite hull proposed in this embodiment has the following beneficial effects:

[0042] 1. For the hard shell made of composite materials, fasteners are passed through the hard shell and then the fireproof insulation cloth is fixed, thus meeting the performance requirements of the composite hull for fireproof insulation;

[0043] 2. This fireproof insulation structure has the advantages of simple structure, easy implementation and easy operation.

[0044] The present invention also provides a second embodiment of the fireproof insulation structure of the composite material hull. Figure 3a and Figure 3b The difference between this embodiment and the above-mentioned first embodiment is that, for occasions with high requirements for fireproof insulation performance, it is sometimes necessary to set two layers of fireproof insulating cloth. At this time, when the fireproof insulating cloth on the outer side of the flat hard shell includes an inner layer of fireproof insulating cloth and an outer layer of fireproof insulating cloth, the splicing points of the inner layer of fireproof insulating cloth and the outer layer of fireproof insulating cloth are staggered, and the distance between the center lines of the splicing points of the inner layer of fireproof insulating cloth and the outer layer of fireproof insulating cloth is less than or equal to 100 mm.

[0045] The present invention also provides a third embodiment of the fireproof insulation structure of the composite material hull. Figure 4a and Figure 4b The difference between this embodiment and the first embodiment is that when the hard shell is composed of two flat hard shells and an insulating sleeve, the bottom of the hard shell of the insulating sleeve is retracted by a height of h, where h is the thickness of the fireproof insulating cloth, and the flat hard shell is retracted by 5mm~15mm relative to the edge of the fireproof insulating cloth outside it.

[0046] The present invention further provides a method for installing a fireproof insulation structure of a composite material hull.

[0047] Reference Figure 5 In this preferred embodiment, a method for installing a fireproof insulation structure based on the composite material hull includes the following steps:

[0048] Step S30: piercing the hard shell with a plurality of studs according to preset positions, and cutting a plurality of fireproof insulation cloths according to the sizes of all the hard shells;

[0049] Step S40: attach all fireproof insulating cloths to one side of the rigid shell. After the fireproof insulating cloths pass through the base of the nails, a locking piece is placed on top of the nails to lock the nails and thus fix the fireproof insulating cloths. The fireproof insulating cloths are squeezed and set at the joints of two adjacent flat rigid shells. The joints of multiple layers of fireproof insulating cloths are staggered. The fireproof insulating cloths are squeezed and set at the joints of the rigid shells containing insulating sleeves.

[0050] Step S50: performing surface treatment on the outer layer of the fireproof insulation cloth.

[0051] Furthermore, before step S30, the following steps are also included:

[0052] Step S10: Clean the surface of the hard shell (use acetone to wipe it to ensure that the surface is clean and free of foreign matter);

[0053] Step S20: Draw lines on the hard shell to locate the positions of the studs.

[0054] Specifically, when a plurality of studs are inserted into the hard shell according to preset positions, the stud base is fixed to the marked position of the hard shell using stud glue and checked for debonding.

[0055] Before installing the studs, mix the stud glue according to the instructions. If the amount is large, use an electric mixer to stir it evenly. If the amount is small, manual mixing is allowed.

[0056] After the installation of the studs is completed, they need to be maintained for 24 hours. After the maintenance period, the installation strength of the studs should be checked. If debonding occurs, they should be removed and re-installed according to the above process.

[0057] Specifically, when the outer layer of the fireproof insulation cloth is subjected to surface treatment, insulating putty, aluminum foil or flame-retardant white cloth is coated on the outer side of the fireproof insulation cloth.

[0058] After insulation installation is complete, use insulating putty to level the surface. The insulation should be firm, smooth, and free of warping. For cabins with interior panels, aluminum foil should be applied to the insulation seams. For cabins without interior panels, a layer of flame-retardant white cloth should be applied to the insulation surface.

[0059] When laying flame-retardant white cloth, the flame-retardant white cloth should be cut as a whole to minimize the number of seams; the flame-retardant white cloth is laid by brushing flame-retardant white glue on one side, and the construction principle of pressing the upper cloth on the lower cloth should be followed. After the construction is completed, the white cloth should not crack or debond. After the white cloth is laid, it should be uniformly painted and beautified.

[0060] The installation method of the fireproof insulation structure of the composite hull proposed in the present invention is designed to design a scheme in which the rivets directly pass through the composite hull according to the material of the composite hull, and then the flexible fireproof insulation cloth is squeezed at the splicing to ensure the fireproof insulation performance of the joint. The installation scheme proposed in the present invention is simple and easy to operate on the one hand, and has good fireproof insulation performance on the other hand.

[0061] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's description and drawings, or directly or indirectly applied to other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fireproof insulation structure of a composite material hull, characterized in that: It includes a hard shell made of composite material and a fireproof insulating cloth located on the outer side of the hard shell. The fasteners penetrate the thickness direction of the hard shell to fix the fireproof insulating cloth on the outer side of the hard shell. When the hard shell is formed by splicing two flat hard shells, the edge of the fireproof insulating cloth on the outer side of the flat hard shell is located on the outer side of the flat hard shell, and the fireproof insulating cloth is extruded at the joint of the two adjacent flat hard shells; the distance between the center of the fastener and the center line of the joint of the fireproof insulating cloth is 40mm~60mm, and the edge of the fireproof insulating cloth protrudes 5mm~15mm outside the edge of its corresponding flat hard shell; the fasteners include studs, and studs are arranged on both sides of the joint of the two adjacent flat hard shells. The distance between the center line of the studs and the joint of the two adjacent flat hard shells is 40mm~60mm; the studs include a stud base and a locking plate sleeved on the stud base, and the length of the stud base is 8mm~12mm more than the thickness of the fireproof insulating cloth.

2. The fireproof insulation structure of a composite material hull according to claim 1, characterized in that: When the fireproof insulating cloth on the outer side of the flat rigid shell includes an inner layer of fireproof insulating cloth and an outer layer of fireproof insulating cloth, the joints of the inner layer of fireproof insulating cloth and the outer layer of fireproof insulating cloth are staggered, and the distance between the center lines of the joints of the inner layer of fireproof insulating cloth and the outer layer of fireproof insulating cloth is less than or equal to 100 mm.

3. The fireproof insulation structure of a composite material hull according to claim 1, characterized in that: When the hard shell is composed of two flat hard shells and an insulating sleeve, the bottom of the hard shell of the insulating sleeve is retracted by a height of h, where h is the thickness of the fireproof insulating cloth. The flat hard shell is retracted by 5mm~15mm relative to the edge of the fireproof insulating cloth outside it.

4. A method for installing a fireproof insulation structure of a composite material hull according to any one of claims 1 to 3, characterized in that: The following steps are involved: A plurality of nails are installed on the hard shell according to the preset positions, and a plurality of fireproof insulation cloths are cut according to the sizes of all the hard shells; Attach all fireproof insulation cloths to one side of the rigid shell. After the fireproof insulation cloths pass through the base of the studs, cover them with locking plates to lock the studs and thus fix the fireproof insulation cloths. The fireproof insulation cloths are squeezed and set at the joints of two adjacent flat rigid shells. The joints of multiple layers of fireproof insulation cloths are staggered. The fireproof insulation cloths are squeezed and set at the joints of the rigid shells containing insulating sleeves. Perform surface treatment on the outer layer of the fireproof insulation cloth.

5. The method for installing a fireproof insulation structure of a composite material hull according to claim 4, characterized in that: Before the step of providing a plurality of nails on the hard shell according to preset positions and cutting a plurality of fireproof insulation cloths according to the sizes of all the hard shells, the step further includes: Clean the surface of the hard shell; Draw lines on the hard shell to locate the positions of the studs.

6. The method for installing a fireproof insulation structure of a composite material hull according to claim 4, characterized in that: When a plurality of studs are inserted into the hard shell according to preset positions, the stud base is fixed to the marked position of the hard shell using stud glue and checked for debonding.

7. The method for installing a fireproof insulation structure of a composite material hull according to claim 4, characterized in that: When performing surface treatment on the outer layer of the fireproof insulation cloth, the outer side of the fireproof insulation cloth is coated with insulating putty, aluminum foil or flame-retardant white cloth.

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