Fire separation hull structure

Abstract

The utility model discloses a fireproof separation ship body structure belongs to ship technology field, the fireproof separation ship body structure is including ship wall subassembly (1), fireproof structure (2) and reinforcing structure (3), the fireproof structure (2) is located the inside of ship wall subassembly (1), the reinforcing structure (3) is located the inside of ship wall subassembly (1), the fireproof structure (2) is isolated fire through cabin body interlayer (210), utilizes exhaust device (207) and extinguishes, the ship wall subassembly (1) passes through cement board (103), fire -retardant gypsum board (102), steel sheet (101) and connecting column (104) and consolidates the strength of ship body structure, and the spread of fire is isolated, the reinforcing structure (3) sets up at cabin body (201) bottom, like this can be in the fire when happening in time fire prevention and extinguishing, increases the space of cabin simultaneously, guarantees the safe evacuation of crew, reduces the loss, ensures the structural stability of ship cabin and the personal safety of crew.

Description

Technical Field

[0001] This utility model belongs to the field of shipbuilding technology, specifically, it relates to a fireproof and separable hull structure. Background Technology

[0002] Ships are vehicles that can navigate or anchor in waterways for transportation or operations. They have different technical performance, equipment, and structural forms depending on the different usage requirements. Compartmentalization is a widely used technology in ship design. It can divide a large ship hull into multiple individual compartments. These compartments are separated by partition walls and doors. In the event of a problem with the hull, the flooded compartments can be isolated, thereby ensuring the safety of the crew.

[0003] For example, the specification of Chinese utility model patent CN214451635U, published on October 22, 2021, discloses a fireproof and separable hull structure, including mounting plates and fireproof layers. The outer walls of both mounting plates are fixed with fireproof layers, and an adjustment mechanism is fixed to the side of the mounting plate away from the fireproof layer. By using crossbars, sleeves, connecting pins, and nuts, the distance between the mounting plates and the hull can be changed to reduce the damage to the hull from fire. However, it can only control the fire and cannot deal with the fire disaster in a timely manner, resulting in poor adaptability. Utility Model Content

[0004] The present invention aims to provide a fireproof and separable hull structure that can extinguish fires in a timely manner and effectively prevent fires after a fire breaks out.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a fireproof and separable hull structure, including a hull assembly, a fireproof structure, and a reinforcement structure; the fireproof structure is disposed inside the hull assembly, and the reinforcement structure is disposed inside the hull assembly; the fireproof structure is located above the reinforcement structure.

[0006] Furthermore, a partition is provided between the fireproof structure and the reinforced structure, and the partition is connected to the ship's bulkhead assembly; a bottom hatch is provided on the partition.

[0007] Furthermore, the fireproof structure includes a hull and a fixing frame. The hull is mounted on the ship's bulkhead assembly, and hull partitions are connected to both ends of the hull. The hull partitions are equipped with fireproof doors. The fixing frame is located at the connection between the hull and the bulkhead.

[0008] Furthermore, the fireproof structure also includes an exhaust device; the exhaust device includes an exhaust pipe, a nozzle, a one-way valve, and a ventilation device; the exhaust pipe is located on the inner wall of the cabin; the nozzle is located on the outer wall of the exhaust pipe; and the one-way valve is located on the exhaust pipe.

[0009] Furthermore, the ventilation device includes an exhaust pipe and a fan; the exhaust pipe passes through the ship's wall assembly, one end of the exhaust pipe is fixed to the inner wall of the cabin, and the other end is fixed to the outer wall of the ship's wall assembly; the fan is located inside the exhaust pipe and at the outlet end of the exhaust pipe.

[0010] Furthermore, the ship wall assembly includes a steel plate, a fireproof gypsum board, a cement board, and connecting columns; the cement board is the middle layer of the ship wall assembly; the fireproof gypsum board is fixed on both sides of the cement board; the steel plate is fixed on both sides of the outer surface of the fireproof gypsum board; the two ends of the connecting columns are respectively welded to the inner wall of the steel plate, the connecting columns penetrate the fireproof gypsum board, and the connecting columns penetrate the cement board.

[0011] Furthermore, the reinforcement structure includes a base compartment located below the body, and the inner wall of the base compartment is provided with a central inner keel and a side inner keel.

[0012] Furthermore, the inner wall of the bottom compartment is also fixedly provided with ribs, and elbow plates are provided on both sides of the ribs; the bottom of the elbow plates is connected to the surface of the bottom compartment, and a reinforcing rib is provided between two adjacent elbow plates; the reinforcing rib is fixedly connected to the inner wall of the bottom compartment.

[0013] Furthermore, the reinforcement structure also includes a horizontal plate, which is disposed on the inner keel; a support frame is provided on the horizontal plate; a fire extinguishing gas pipe is provided on the support frame; one end of the fire extinguishing gas pipe is connected to a connecting pipe; and the other end of the connecting pipe is connected to an exhaust pipe.

[0014] Furthermore, the fixing frame is a triangular plate structure, the side of the fixing frame is connected to the cabin body, and the bottom surface of the fixing frame is connected to the partition.

[0015] Furthermore, the fireproof gypsum board contains a fiber layer.

[0016] Furthermore, the surfaces of the inner keel, side inner keel, and ribs are provided with connecting holes; the cross-sections of the inner keel and side inner keels are T-shaped, the inner keel is located on the central axis of the bottom compartment, the side inner keels are symmetrically distributed on both sides of the inner keel, and the inner keels and side inner keels are distributed in parallel; there are multiple sets of ribs, the ribs are distributed in parallel, and the ribs and side inner keels are arranged intersectingly; the elbow plate is a triangular plate structure, the side of the elbow plate is fixedly connected to the rib, the bottom surface of the elbow plate is fixedly connected to the inner wall of the bottom compartment, there are multiple sets of elbows, and the elbows and ribs are arranged intersectingly; the reinforcing ribs are square; the cross plates are square; the support frame is square.

[0017] The technical advantages of this invention are as follows: Through the cooperation of steel plates, fireproof gypsum boards, cement boards, connecting columns, cabins, fixing frames, one-way valves, exhaust devices, exhaust pipes, nozzles, cabin partitions, fire doors, and bottom cabin doors, the fixing frames support the bottom angle of the cabin, increasing its strength. In the event of a fire, personnel inside the cabin can escape through the cabin partitions on the surfaces of the fire doors on both sides, and then close the partitions. Carbon dioxide gas enters the exhaust pipe channel through the one-way valve and is injected into the cabin through the nozzles, creating a low-oxygen environment within the cabin. The system is designed to extinguish fires promptly. A top-mounted exhaust system ventilates the interior of the cabin, removing smoke and carbon dioxide, allowing external personnel to enter and clean up. The cabin and fire doors utilize a three-layer structure similar to ship hull components. Cement boards provide insulation and fire resistance, enhancing the hull's strength. Fire-resistant gypsum boards with fiber layers are installed on both sides of the cement boards, protected by steel plates. Connecting columns penetrate the fire-resistant gypsum boards and cement boards, welding the steel plates to create a unified structure. These connecting columns also contribute to increased strength.

[0018] Through the coordination of the bottom compartment, central inner keel, side inner keel, ribs, reinforcing ribs, elbow plates, cross plates, support frames, fire extinguishing gas pipes, and connecting pipes, the central inner keel is welded in the middle of the bottom compartment, and side inner keels are welded on both sides. Multiple sets of ribs, staggered with the side inner keels, connect the bottom compartment to the side inner keels, forming a uniformly distributed frame at the bottom of the bottom compartment. The surfaces of the central inner keel, side inner keels, and ribs are all provided with connecting holes to ensure strength while reducing overall weight. Elbow plates are provided on the surface of the ribs to facilitate connection with the reinforcing ribs. The structure is designed to form an angle, which improves the overall support strength. At the same time, a horizontal plate is set on the surface of the inner keel, and the fire extinguishing gas pipes are placed on the support frame on the surface of the horizontal plate. Multiple sets of fire extinguishing gas pipes are connected by connecting pipes to supply gas to the exhaust pipes. The bottom hatch at the bottom of the hull allows for inspection of the fire extinguishing gas pipes and the interior of the bottom hatch during routine maintenance. This structure can improve the strength of the hull, and placing the fire extinguishing gas pipes in the bottom hatch not only saves space inside the hull but also prevents fire from affecting the fire extinguishing gas pipes, thus improving the adaptability of the equipment. Attached Figure Description

[0019] This manual includes the following figures, which illustrate the following: Figure 1 This is a schematic diagram of a fireproof, separable hull structure; Figure 2 This is a schematic diagram of the fireproof and separable hull structure. Figure 3 yes Figure 1 Schematic diagram of the fireproof structure of the fireproof separation hull structure; Figure 4 yes Figure 1 Schematic diagram of the reinforcement structure of the fireproof and separable hull of the ship; Figure 5 yes Figure 1 Schematic diagram of the hull assembly of a fire-resistant, separable hull structure; Figure 6 yes Figure 3 Schematic diagram of the exhaust device structure of the central exhaust system; The markings in the diagram are as follows: 1. Ship wall assembly; 101. Steel plate; 102. Fireproof gypsum board; 103. Cement board; 104. Connecting column; 2. Fireproof structure; 201. Hull; 202. Fixture; 203. Control main board; 204. Carbon dioxide detector; 205. Temperature detector; 206. One-way valve; 207. Exhaust system; 208. Exhaust pipe; 209. Nozzle; 210. Hull partition; 211. Fire door; 212. Bottom hatch door; 213. Bulkhead; 214. Exhaust system; 215. Exhaust pipe; 216. Fan; 3. Reinforcement structure; 301. Bottom hatch; 302. Inner keel; 303. Side inner keel; 304. Rib plate; 305. Reinforcing rib; 306. Elbow plate; 307. Horizontal plate; 308. Support frame; 309. Fire extinguishing gas pipe; 310. Connecting pipe; 311. Connecting hole. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0021] like Figure 1 and Figure 2 As shown, a fireproof and separable hull structure includes a hull assembly 1, a fireproof structure 2, and a reinforcing structure 3. The fireproof structure 2 is located inside the hull assembly 1, and the reinforcing structure 3 is located inside the hull assembly 1, with the fireproof structure 2 positioned above the reinforcing structure 3. The hull assembly 1 serves to isolate the hull, effectively isolating fires. The fireproof structure 2 effectively extinguishes fires, ensuring hull safety. The reinforcing structure 3 enhances the structural strength of the hull, saves cabin space, and improves the adaptability of the hull structure.

[0022] Specifically, such as Figures 1 to 3 As shown, a partition 213 is provided between the fireproof structure 2 and the reinforcement structure 3, and the partition 213 is connected to the ship wall assembly 1; a bottom hatch 212 is provided on the partition 213, and the bottom hatch 212 can be used to inspect the fire extinguishing gas pipe 309 and the interior of the bottom hatch 301 during routine maintenance.

[0023] Specifically, such as Figures 1 to 3As shown, the fireproof structure 2 includes a hull 201 and a fixing frame 202. The hull 201 is installed on the ship wall assembly 1. Both ends of the hull 201 are connected to hull partitions 210 to separate the ship. Fire doors 211 are installed on the hull partitions 210. In the event of a fire, personnel can evacuate in time and the fire can be isolated through the fire doors 211. The fixing frame 202 is installed at the connection between the hull 201 and the bulkhead 213 to strengthen the connection between the hull 201 and the bulkhead 213.

[0024] Specifically, such as Figure 3 As shown, the fireproof structure 2 also includes an exhaust device 207; the exhaust device 207 includes an exhaust pipe 208, a nozzle 209, a one-way valve 206, and an exhaust system 214; the exhaust pipe 208 is located on the inner wall of the cabin 201, the nozzle 209 is located on the surface of the exhaust pipe 208, the one-way valve 206 is located inside the exhaust pipe 208, and the exhaust pipe 208 is connected to a carbon dioxide gas source; when a fire occurs, the personnel in the cabin 201 escape through the fire door 211, close the cabin partition 210, open the carbon dioxide gas source switch, and inject carbon dioxide gas into the cabin 201 through the one-way valve 206 on the exhaust pipe 208 and the nozzle 209, thereby achieving a low-oxygen state in the cabin 201 and extinguishing the fire; after the carbon dioxide injection has reached a certain time, the exhaust system 214 at the top is used to exhaust the smoke and carbon dioxide gas inside the cabin 201, and then external personnel enter to clean up the site.

[0025] Specifically, such as Figure 6 As shown, the ventilation device 214 includes an exhaust pipe 215 and a fan 216. The exhaust pipe 215 penetrates the ship wall assembly 1, with one end fixed to the inner wall of the cabin 201 and the other end fixed to the outer wall of the ship wall assembly 1. When the fan 216 is powered on, the dense smoke and carbon dioxide gas inside the cabin 201 can be discharged to the outside through the exhaust pipe 215. The fan 216 is located inside the exhaust pipe 215 and at the outlet end of the exhaust pipe 215. When the fan 216 rotates, it can create a negative pressure inside the exhaust pipe 215, sucking out the gas inside the cabin 201 and ensuring that personnel can safely enter the site for cleaning.

[0026] Specifically, such as Figure 5As shown, the ship's bulkhead assembly 1 includes a steel plate 101, a fireproof gypsum board 102, a cement board 103, and connecting columns 104. The cement board 103 is the middle layer of the bulkhead assembly 1, providing structural support for the hull and protecting its structural safety. Simultaneously, the cement board 103 blocks the spread of high-temperature flames, buying time for personnel escape and rescue. The fireproof gypsum board 102 is fixedly installed on both sides of the cement board 103, blocking the spread of flames and high temperatures, reducing the risk of fire expansion. The steel plate 101 is fixedly installed on both outer sides of the fireproof gypsum board 102. The connecting column 104 provides structural support for the hull 201, ensuring the structural stability of the ship wall assembly 1. The two ends of the connecting column 104 are welded to the inner wall of the steel plate 101. The connecting column 104 penetrates the fireproof gypsum board 102 and the cement board 103. Its function is to connect the cement board 103, the fireproof gypsum board 102 and the steel plate 101 into a whole, maintaining the stability of the entire fireproof layer. At the same time, the connecting column 104 also has a positioning function, which facilitates the installation and fixing of various components of the ship wall assembly 1, and prevents displacement and detachment during a fire, which would affect the overall structural safety and stability.

[0027] Specifically, such as Figure 5 As shown, the reinforcement structure 3 includes a bottom compartment 301, which is located below the body 201. The surface of the bottom compartment 301 is provided with an inner keel 302 and a side inner keel 303, which serve to support and reinforce the structure.

[0028] Specifically, such as Figure 5 As shown, the bottom compartment 301 is also provided with ribs 304 to enhance structural strength; elbows 306 are provided on both sides of the ribs 304; the bottom of the elbows 306 is connected to the surface of the bottom compartment 301 to enhance the connection stability between the ribs 304 and the bottom compartment 301 and prevent deformation from affecting structural safety; a reinforcing rib 305 is provided between two adjacent elbows 306; the reinforcing rib 305 is fixedly connected to the surface of the bottom compartment 301 to prevent the compartment from deforming due to high temperature during a fire, while dispersing concentrated loads and further improving the stiffness and strength of the reinforced structure 3.

[0029] Specifically, such as Figure 5 As shown, the reinforcement structure 3 also includes a horizontal plate 307, which is located on the upper surface of the inner keel 302. A support frame 308 is provided on the upper surface of the horizontal plate 307. A fire extinguishing gas pipe 309 is provided on the support frame 308. One end of the fire extinguishing gas pipe 309 is connected to a connecting pipe 310. The other end of the connecting pipe 310 is connected to an exhaust pipe 208. When a fire occurs, the carbon dioxide gas in the fire extinguishing gas pipe 309 will enter the exhaust pipe 208 through the connecting pipe 310 and enter the cabin 201 from the nozzle 209 on the exhaust pipe 208 to extinguish the fire. The horizontal plate 307 and the support frame 308 are mainly used to support the fire extinguisher pipe 309 and improve the stability of the reinforcement structure 3.

[0030] Specifically, such as Figure 2As shown, the fixing frame 202 has a triangular structure. The side of the fixing frame 202 is connected to the cabin 20, and the bottom surface of the fixing frame 202 is connected to the upper surface of the bulkhead 213, providing a strong connection between the cabin 201 and the bulkhead 213 and ensuring the structural safety of the cabin 201.

[0031] Specifically, such as Figure 5 As shown, the fireproof gypsum board 102 contains a fiber layer, which enhances the physical properties and resistance to damage of the fireproof gypsum board 102 and improves the structural strength of the fireproof structure 2.

[0032] Specifically, such as Figure 4 As shown, the surfaces of the inner keel 302, the side inner keel 303, and the ribs 304 are provided with connecting holes 311 to reduce overall weight and material consumption. The cross-sectional shape of the inner keel 302 and the side inner keel 303 is T-shaped, which can provide a larger contact surface and reduce local stress concentration. The inner keel 302 is located on the central axis of the bottom compartment 301, and the side inner keels 303 are symmetrically distributed on both sides of the inner keel 302. The inner keel 302 and the side inner keels 303 are distributed in parallel to ensure uniform stress on the load-bearing surface and facilitate installation and maintenance. There are multiple sets of ribs 304, which are distributed in parallel. The ribs 304 and the side inner keels 303 are arranged intersectingly, preferably perpendicularly. This arrangement increases the bending resistance of the inner keel 302 and the side inner keel 303, preventing keel distortion and deformation under excessive load, which would affect the stability of the hull. The elbow plate 306 is a triangular plate structure, with its side fixedly connected to the rib plate 304 and its bottom fixedly connected to the inner wall of the bottom compartment 301. There are multiple sets of elbow plates 306, which are arranged intersectingly with the rib plate 304, preferably vertically. Their function is to reinforce the connection between the rib plate 304 and the bottom compartment 301, prevent deformation of the rib plate 304, distribute concentrated loads, and improve the overall strength of the reinforcement structure 3. The reinforcing rib 305 is square; the horizontal plate 307 is square; and the support frame 308 is square.

[0033] The working process of this fireproof, separable hull structure is as follows: (e.g.) Figures 1 to 6As shown, this utility model provides a fireproof and separable hull structure, including a hull assembly 1; a fireproof structure 2 and a reinforcing structure 3 are provided inside the hull assembly 1; the fireproof structure 2 includes a compartment 201, which is fixedly installed on the surface of the hull assembly 1; fixing brackets 202 are evenly distributed on both sides inside the compartment 201; compartment partitions 210 are fixedly connected to both ends of the compartment 201; fireproof doors 211 are provided on the surface of the compartment partitions 210; a bottom hatch 212 is provided inside the compartment 201; the fireproof structure 2 also includes an exhaust system. Pipe 208, exhaust pipe 208 is fixedly installed on the surface of hull 201, one-way valve 206 is fixedly installed on the surface of exhaust pipe 208, nozzle 209 is fixedly installed on the surface of exhaust pipe 208, exhaust device 207 is fixedly installed at the top of the interior of hull 201, ship wall assembly 1 includes cement board 103, fireproof gypsum board 102 is fixedly installed on both sides of cement board 103, steel plate 101 is fixedly installed on both outer surfaces of fireproof gypsum board 102, steel plate 101 is fixedly installed on the surface of hull 201, and connecting column 104 is welded to the inner wall of steel plate 101.

[0034] In this embodiment, the bottom angle between the cabin 201 and the partition 213 is supported by the fixing frame 202 to improve strength. When a fire occurs, personnel inside the cabin 201 escape through the cabin partition 210 on the surface of the fire doors 211 on both sides, and close the cabin partition 210. Carbon dioxide gas enters the exhaust pipe 208 channel through the one-way valve 206, and carbon dioxide gas is injected into the cabin 201 using the nozzle 209. Subsequently, the cabin 201 reaches a low-oxygen state to extinguish the fire. The cabin 201 is ventilated by the top exhaust device 214. The smoke and carbon dioxide gas inside the cabin 201 are discharged before personnel can enter for cleaning. The interior of the cabin 201 and the fire door 211 in this device adopt the structure of the ship wall assembly 1. The cement board 103 is used for heat insulation and fireproofing, and to improve strength. Fireproof gypsum board 102 with fiber layer is set on both sides of the cement board 103, and steel plates 101 are set on both sides for protection. The fireproof gypsum board 102 and the cement board 103 are connected by a connecting column 104, which penetrates the fireproof gypsum board 102 and the cement board 103 and welds the steel plate 101 to form a whole. The connecting column 104 also increases the strength.

[0035] Preferably, a control board 203 can be fixed on the cabin 201, and a carbon dioxide detector 204 and a temperature detector 205 can be electrically connected to the control board 203. In the event of a fire, personnel can escape through the fire door 211, close the cabin partition 210, and activate the carbon dioxide detector 204 and the temperature detector 205 using the control board 203. Subsequently, the exhaust device 207 completes the fire extinguishing and the ventilation device 214 extracts the internal smoke. After observing that the carbon dioxide concentration and temperature inside the cabin 201 are within a suitable range, personnel can open the fire door 211 to enter the cabin 201 to handle the situation.

[0036] like Figures 1 to 6 As shown, based on the above embodiments, this utility model provides a preferred technical solution: the reinforcement structure 3 includes a bottom compartment 301. A central inner keel 302 is fixedly installed on the surface of the compartment 201. Side inner keels 303 are fixedly installed on the surface of the bottom compartment 301, symmetrically distributed on both sides of the central inner keel 302. Ribs 304 are fixedly installed on the surface of the side inner keels 303, with multiple sets of ribs 304 evenly distributed on the side inner keels. On the surface of the rib 303, elbow plates 306 are fixedly installed on both sides of the rib plate 304. Reinforcing ribs 305 are fixedly installed on the surface of the elbow plate 306. The reinforcement structure 3 also includes a horizontal plate 307. The horizontal plate 307 is fixedly installed on the surface of the inner keel 302. A support frame 308 is fixedly installed on the surface of the horizontal plate 307. A fire extinguishing gas pipe 309 is fixedly installed on the surface of the support frame 308. A connecting pipe 310 is movably installed on the surface of the fire extinguishing gas pipe 309. The connecting pipe 310 is adapted to the exhaust pipe 208.

[0037] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A fireproof and separable hull structure, characterized in that: It includes a ship wall assembly (1), a fireproof structure (2) and a reinforcement structure (3); the fireproof structure (2) is located inside the ship wall assembly (1), and the reinforcement structure (3) is located inside the ship wall assembly (1); the fireproof structure (2) is located above the reinforcement structure (3).

2. The fireproof and separable hull structure as described in claim 1, characterized in that: A partition (213) is provided between the fireproof structure (2) and the reinforcement structure (3), and the partition (213) is connected to the ship wall assembly (1); a bottom hatch (212) is provided on the partition (213).

3. The fireproof and separable hull structure as described in claim 2, characterized in that: The fireproof structure (2) includes a cabin (201) and a fixing frame (202). The cabin (201) is mounted on the ship wall assembly (1). The two ends of the cabin (201) are connected to cabin partitions (210). Fireproof doors (211) are provided on the cabin partitions (210). The fixing frame (202) is located at the connection between the cabin (201) and the bulkhead (213).

4. The fireproof and separable hull structure as described in claim 3, characterized in that: The fireproof structure (2) also includes an exhaust device (207); the exhaust device (207) includes an exhaust pipe (208), a nozzle (209), a one-way valve (206), and an exhaust device (214); the exhaust pipe (208) is located on the inner wall of the cabin (201); the nozzle (209) is located on the outer wall of the exhaust pipe (208); the one-way valve (206) is fixedly located on the exhaust pipe (208); and the exhaust device (214) is located at the top of the inner wall of the cabin (201).

5. The fireproof and separable hull structure as described in claim 4, characterized in that: The ventilation device (214) includes an exhaust pipe (215) and a fan (216); the exhaust pipe (215) passes through the wall assembly (1), one end of the exhaust pipe (215) is fixed on the inner wall of the cabin (201), and the other end is fixed on the outer wall of the wall assembly (1); the fan (216) is located inside the exhaust pipe (215), and the fan (216) is located at the outlet end of the exhaust pipe (215).

6. The fireproof and separable hull structure as described in claim 5, characterized in that: The ship wall assembly (1) includes a steel plate (101), a fireproof gypsum board (102), a cement board (103), and a connecting column (104); the cement board (103) is the middle layer of the ship wall assembly (1); the fireproof gypsum board (102) is fixed on both sides of the cement board (103); the steel plate (101) is fixed on both sides of the outer surface of the fireproof gypsum board (102); the two ends of the connecting column (104) are welded to the inner wall of the steel plate (101), the connecting column (104) penetrates the fireproof gypsum board (102), and the connecting column (104) penetrates the cement board (103).

7. The fireproof and separable hull structure as described in claim 6, characterized in that: The reinforcement structure (3) includes a bottom compartment (301), which is located below the body (201). The inner wall of the bottom compartment (301) is provided with a central inner keel (302) and a side inner keel (303).

8. The fireproof and separable hull structure as described in claim 7, characterized in that: The inner wall of the bottom compartment (301) is also provided with a rib plate (304), and elbow plates (306) are provided on both sides of the rib plate (304); the bottom of the elbow plate (306) is connected to the surface of the bottom compartment (301), and a reinforcing rib (305) is provided between two adjacent elbow plates (306); the reinforcing rib (305) is fixedly connected to the inner wall of the bottom compartment (301).

9. The fireproof and separable hull structure as described in claim 8, characterized in that: The reinforcement structure (3) also includes a horizontal plate (307), which is mounted on the inner keel (302); a support frame (308) is mounted on the horizontal plate (307); a fire extinguishing gas pipe (309) is mounted on the support frame (308); one end of the fire extinguishing gas pipe (309) is connected to a connecting pipe (310); the other end of the connecting pipe (310) is connected to an exhaust pipe (208).

10. The fireproof and separable hull structure as described in any one of claims 3 to 9, characterized in that: The fixing frame (202) is a triangular plate structure. The side of the fixing frame (202) is connected to the cabin (201), and the bottom surface of the fixing frame (202) is connected to the partition (213).

11. The fireproof and separable hull structure as described in any one of claims 6 to 9, characterized in that: The fireproof gypsum board (102) contains a fiber layer.

12. The fireproof and separable hull structure as described in claim 9, characterized in that: The surfaces of the inner keel (302), the side inner keel (303), and the ribs (304) are provided with connecting holes (311); the inner keel (302) and the side inner keel (303) have T-shaped cross-sections, the inner keel (302) is located in the middle of the bottom compartment (301), and the side inner keels (303) are symmetrically distributed on both sides of the inner keel (302), and the inner keel (302) and the side inner keels (303) are distributed in parallel; there are multiple sets of ribs (304), and the ribs (304) are distributed in parallel. The rib plate (304) and the side inner keel (303) are arranged crosswise; the elbow plate (306) is a triangular plate structure, the side of the elbow plate (306) is fixedly connected to the rib plate (304), the bottom surface of the elbow plate (306) is fixedly connected to the inner wall of the bottom compartment (301), there are multiple sets of elbow plates (306), the elbow plate (306) and the rib plate (304) are arranged crosswise; the reinforcing rib (305) is square; the horizontal plate (307) is square; the support frame (308) is square.

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