Combined fire protection device for a ship fuel preparation room

Abstract

The application discloses a combined fire-fighting device for a ship fuel preparation room and relates to the technical field of fire-fighting devices.The combined fire-fighting device comprises an explosion-proof cabinet, the inner wall of the explosion-proof cabinet is provided with an inner bin, the bottom of the explosion-proof cabinet is provided with an anti-seismic mounting assembly, the anti-seismic mounting assembly comprises channel steels, the number of the channel steels is two, and connecting rods are fixedly connected between the two channel steels.The buffering structure of the first spring and the double-layer rubber pad arranged in the channel steel effectively offsets the continuous wide-frequency vibration generated by a ship main engine and a propeller, vibration is prevented from being transmitted to the cabinet body to cause loosening and damage of pipelines and elements, meanwhile, a vertical limiting structure composed of a supporting frame, a first screw rod and a first fastener is used to perform omnidirectional constraint on the displacement of a supporting plate and the cabinet body, the effective stroke of vertical damping is ensured, the problem of poor damping effect in the prior art is solved, and the installation stability of the cabinet body and the operation reliability of the device under extreme sea conditions are ensured.

Description

Technical Field

[0001] This invention belongs to the field of fire protection equipment technology, and in particular relates to a combined fire protection device for ship fuel preparation rooms. Background Technology

[0002] The ship's fuel preparation room is an auxiliary compartment for the ship's power system, which is responsible for the storage, filtration, preheating, and pretreatment of marine fuel. The interior space is sealed and has a high concentration of oil and gas volatiles. It also houses high-pressure fuel pipelines, electrical control components, and pressurized heat exchange equipment. It belongs to a Class I hazardous area with superimposed risks of Class B fire, electrical fire, and explosion.

[0003] To adapt to ship navigation conditions, the conventional design of existing explosion-proof cabinet-type fire-fighting equipment is as follows: the cabinet is installed on the bulkhead or deck using a rigid bolt fixing method, and some designs will add a single layer of rubber shock-absorbing pads at the bottom of the cabinet to alleviate vibration; in order to achieve a neat arrangement of internal components, a welded and fixed partition plate is usually installed inside the cabinet to physically isolate the media storage chamber from the control chamber; in order to meet the heat dissipation requirements of the electrical components inside the cabinet, a simple axial flow cooling fan and ventilation opening structure are installed on the top of the cabinet.

[0004] During ship navigation, the main engine and propeller generate continuous broadband vibrations, and in extreme sea states, they also generate alternating impact loads from large-angle rolling and pitching. Existing rigid fixing solutions lack any vibration damping or buffering structures, allowing vibrations to be directly transmitted to the cabinet's interior. Over long-term operation, this can easily lead to loosening of internal pipe joints, valve seal failure, displacement of fire extinguishing medium containers, and even pipe ruptures and media leaks, directly causing the fire-fighting equipment to malfunction. While adding a single-layer rubber vibration damping pad can only achieve small-amplitude vertical vibration damping without any displacement constraint structure, under ship rolling and pitching conditions, the cabinet is prone to horizontal movement and vertical swaying. The damping pad is susceptible to shear deformation and instability, failing to guarantee the cabinet's installation stability. In extreme cases, this could even lead to the cabinet tipping over or detaching, posing a safety hazard.

[0005] To address this issue, we provide a modular fire-fighting system for ship fuel preparation rooms. Summary of the Invention

[0006] The purpose of this invention is to provide a combined fire-fighting device for ship fuel preparation rooms. By combining explosion-proof cabinets and seismic installation components, it solves the problem that existing fire-fighting devices can only achieve small-amplitude vertical vibration reduction. Under ship rolling and pitching conditions, the cabinet is prone to horizontal movement and vertical jumping, which cannot guarantee the installation stability of the cabinet.

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution.

[0008] This invention relates to a combined fire-fighting device for a ship's fuel preparation room, comprising an explosion-proof cabinet. The inner wall of the explosion-proof cabinet has an inner compartment. An anti-vibration mounting assembly is located at the bottom of the explosion-proof cabinet. The anti-vibration mounting assembly includes two channel steels, with a connecting rod fixedly connected between them. First rubber pads are fixedly connected to both sides of the inner cavity of each channel steel. A first spring is fixedly connected to the top of each first rubber pad, with the top of the first spring extending through to the outside of the channel steel. A second rubber pad is fixedly connected to the top of the first spring, and a support plate is fixedly connected to the top of the second rubber pad. Support frames are fixedly connected to both sides of the top of each channel steel. A first screw is inserted through the top of each support frame, with the top of the first screw fixedly connected to the support plate. A first fastener is threaded onto the bottom of the surface of the first screw. The two channel steels are arranged parallel and spaced apart. The channel steels are fixedly connected by connecting rods, which rigidly connect the two channel steels into one, ensuring the overall structural rigidity of the seismic installation assembly and preventing frame deformation under stress. The first spring extends vertically, and the top of the channel steel has a clearance hole for the first spring to pass through, allowing the top of the first spring to penetrate to the outside of the channel steel. The support frame is a vertically extending rigid support structure, and the top of the support frame has a through hole for the first screw to pass through. The first screw is vertically inserted into the through hole, and the top of the first screw is fixedly connected to the bottom surface of the support plate. The rod body of the first screw penetrates downward through the top of the support frame. The first fastener is threadedly connected to the bottom surface of the rod body of the first screw that extends out of the top of the support frame. Through the threaded engagement of the first fastener and the first screw, the vertical displacement of the support plate is limited, and at the same time, the engagement between the support frame and the first screw can constrain the horizontal displacement of the support plate.

[0009] When the ship vibrates vertically during navigation, the explosion-proof cabinet causes the support plate to shift vertically. The support plate then transmits the vibration load sequentially to the second rubber pad, the first spring, and the second rubber pad. The first spring absorbs the vibration energy through elastic deformation, and the first and second rubber pads further buffer and dampen the vibration, preventing it from being directly transmitted to the channel steel and the ship structure. This also isolates the rigid contact between the metal components. When the ship experiences alternating horizontal loads from rolling and pitching, the support frame and the first screw inserted within it form a horizontal limiting constraint, restricting the horizontal movement of the support plate and the explosion-proof cabinet. At the same time, the first fastener limits the maximum vertical lifting displacement of the support plate, preventing the first spring from becoming excessively deformed and unstable, thus ensuring the continued effectiveness of the buffer structure.

[0010] The invention is further configured such that the inner wall of the inner compartment is provided with a sliding partition assembly, the sliding partition assembly including a slide rail, the slide rail being disposed at the top and bottom of both sides of the inner wall of the inner compartment, and side plates being slidably connected between the slide rails, with a partition disposed on one side opposite to the two side plates, the number of partitions being three, the pull-out side plates cooperating with the three partitions to divide the inner compartment into multiple independent storage spaces, realizing the classified and isolated storage of the fire extinguishing medium storage components of the fire-fighting device, avoiding mutual interference between different components, and improving the regularity of the inner compartment space layout and the safety of component operation.

[0011] The invention is further configured such that a positioning mechanism is provided at the rear end of the explosion-proof cabinet. The positioning mechanism includes a connecting seat, one side of which is fixedly connected to one side of the explosion-proof cabinet. A second screw is provided through one side of the connecting seat, and a fixing frame is fixedly connected to one side of the second screw. A second spring is sleeved between the second screw and the fixing frame. A second fastener is threadedly connected to one side of the surface of the second screw. Through the cooperative structure of the connecting seat, the second screw, and the second fastener, the installation distance between the fixing frame and the explosion-proof cabinet can be flexibly adjusted by rotating the second fastener, thereby improving the installation versatility and adaptability of the device. The second spring is limited between the connecting seat and the fixing frame, forming a continuous flexible buffer structure that effectively absorbs the alternating impact loads caused by rolling and pitching during ship navigation, preventing the impact from being directly transmitted to the explosion-proof cabinet and causing cabinet deformation. This ensures that the cabinet is evenly stressed after installation and improves installation stability.

[0012] The invention is further configured such that a cabinet door is provided on one side of the surface of the explosion-proof cabinet, and a handle is fixedly connected to one side of the surface of the cabinet door. The cabinet door provides an openable and closable operating channel for the installation of internal components, thereby improving the ease of operation of the device.

[0013] The invention is further configured such that a ventilation mechanism is provided on the top of the explosion-proof cabinet, the ventilation mechanism including a shell, the bottom of the shell communicating with the explosion-proof cabinet, a connecting frame fixedly connected to the inner cavity of the shell, and a cooling fan fixedly connected to the top of the connecting frame. The cooling fan actively drives the air circulation in the inner compartment of the explosion-proof cabinet, quickly removing the heat generated by the operation of the electrical control components in the inner compartment, avoiding the failure of components due to long-term high-temperature operation, ensuring the stability and reliability of the fire protection device control circuit, and improving the overall operational safety of the device.

[0014] The invention is further configured such that dust covers are fixedly connected to both sides of the top of the outer shell. The dust covers are symmetrically arranged and shield the ventilation openings of the ventilation mechanism to prevent the electrical components inside the inner chamber from being corroded and extend the service life of the device.

[0015] The invention is further configured such that each of the rear ends of the fixing frame is provided with a positioning hole, and the positioning holes are symmetrically arranged. The symmetrical arrangement of the positioning holes ensures that the connection points between the fixing frame and the bulkhead are subjected to uniform force, thereby improving the firmness and structural stability of the explosion-proof cabinet installation.

[0016] The invention is further configured such that a conductive rubber pad is provided on the contact surface between the fixing frame and the ship's bulkhead. The conductive rubber pad is connected to the anti-static grounding terminal of the explosion-proof cabinet. The conductive rubber pad effectively fills the installation gap between the fixing frame and the bulkhead, enhancing the stability of the installation.

[0017] The invention is further configured such that a flame-retardant and explosion-proof sealing strip is provided on the mating surface of the cabinet door and the explosion-proof cabinet. The flame-retardant and explosion-proof sealing strip fills the mating gap between the cabinet door and the cabinet body, thereby achieving a fully enclosed explosion-proof seal of the explosion-proof cabinet and effectively preventing flammable and explosive oil and gas in the fuel preparation room from seeping into the inner compartment of the explosion-proof cabinet.

[0018] The invention is further configured such that the fixing frame is fixed to the bulkhead of the ship's fuel preparation room by expansion bolts, thereby ensuring the stability and safety of the explosion-proof cabinet installation.

[0019] The present invention has the following beneficial effects.

[0020] 1. This invention effectively counteracts the continuous broadband vibrations generated by the ship's main engine and propeller by using a buffer structure with a first spring and double-layer rubber pads built into the channel steel, preventing the vibrations from being transmitted to the inside of the cabinet and causing loosening and damage to pipes and components. At the same time, the vertical limiting structure composed of the support frame, the first screw and the first fastener constrains the displacement of the support plate and the cabinet in all directions, ensuring the effective stroke of vertical vibration reduction, solving the problem of poor vibration reduction effect in the prior art, and ensuring the installation stability of the cabinet and the operational reliability of the device under extreme sea conditions.

[0021] 2. This invention uses a sliding partition assembly consisting of a slide rail, a sliding side plate, and an adjustable partition. The side plate can be pulled out as a whole along the slide rail. When inspecting or replacing components inside the cabinet, the side plate can be pulled out directly to complete the operation. This preserves the overall structural strength and sealing performance of the explosion-proof cabinet, which reduces the difficulty and cost of operation and maintenance, and ensures that the explosion-proof performance of the cabinet meets the requirements of ship specifications. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0023] Figure 1 A perspective view of a combined fire-fighting device for a ship's fuel preparation room.

[0024] Figure 2 A bottom-view perspective view of a combined fire-fighting device for a ship's fuel preparation room.

[0025] Figure 3 A perspective view of a seismic-resistant mounting component in a combined fire-fighting system for a ship's fuel preparation room.

[0026] Figure 4 This is a perspective view of a support plate and its connecting structure in a combined fire-fighting device for a ship's fuel preparation room.

[0027] Figure 5 A rear-view perspective view of a combined fire-fighting device for a ship's fuel preparation room.

[0028] Figure 6 A perspective view of a side plate in a combined fire-fighting device for a ship's fuel preparation room.

[0029] Figure 7 A perspective view of the positioning mechanism in a combined fire-fighting device for a ship's fuel preparation room.

[0030] Figure 8 A top-view perspective view of a combined fire-fighting device for a ship's fuel preparation room.

[0031] In the attached diagram: 1. Explosion-proof cabinet; 2. Inner compartment; 3. Seismic mounting assembly; 31. Channel steel; 32. Connecting rod; 33. First rubber pad; 34. First spring; 35. Second rubber pad; 36. Support plate; 37. Support frame; 38. First screw; 39. First fastener; 4. Sliding partition assembly; 41. Slide rail; 42. Side plate; 43. Partition; 5. Positioning mechanism; 51. Connecting seat; 52. Second screw; 53. Fixing frame; 54. Second spring; 55. Second fastener; 6. Cabinet door; 7. Ventilation mechanism; 71. Outer shell; 72. Connecting frame; 73. Cooling fan; 8. Dust cover; 9. Positioning hole. Detailed Implementation

[0032] The technical solutions of the present invention will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] Please see Figure 1-8This invention relates to a combined fire-fighting device for a ship's fuel preparation room, comprising an explosion-proof cabinet 1, a cabinet door 6 on one side of the cabinet 1, a handle fixedly connected to one side of the cabinet door 6, a flame-retardant and explosion-proof sealing strip on the contact surface between the cabinet door 6 and the explosion-proof cabinet 1, an inner compartment 2 on the inner wall of the explosion-proof cabinet 1, and an anti-vibration mounting assembly 3 at the bottom of the explosion-proof cabinet 1. The anti-vibration mounting assembly 3 includes two channel steels 31, with a connecting rod 32 fixedly connected between the two channel steels 31, and two connecting rods 32 fixedly connected to the inner sides of the channel steel 31. A first rubber pad 33 is fixedly connected to the top of the first rubber pad 33, and the top of the first spring 34 extends through to the outside of the channel steel 31. A second rubber pad 35 is fixedly connected to the top of the first spring 34, and a support plate 36 is fixedly connected to the top of the second rubber pad 35. Support frames 37 are fixedly connected to both sides of the top of the channel steel 31. A first screw 38 is provided through the top of the support frame 37. The top of the first screw 38 is fixedly connected to the support plate 36, and a first fastener 39 is threadedly connected to the bottom of the surface of the first screw 38.

[0034] Specifically: Two channel steels 31 are arranged in parallel and spaced apart, and are fixedly connected by a connecting rod 32. The connecting rod 32 rigidly connects the two channel steels 31 into one, ensuring the overall structural rigidity of the seismic installation assembly 3 and preventing frame deformation under stress. The first spring 34 extends vertically, and the top of the channel steel 31 has a clearance hole for the first spring 34 to pass through, allowing the top of the first spring 34 to penetrate to the outside of the channel steel 31. The support frame 37 is a vertically extending rigid support structure, and the top of the support frame 37 has a clearance hole for the first spring 34 to pass through. The rod 38 passes through a through hole, and the first screw 38 is vertically inserted into the through hole. The top end of the first screw 38 is fixedly connected to the bottom surface of the support plate 36. The rod body of the first screw 38 extends downward through the top of the support frame 37. The first fastener 39 is threadedly connected to the bottom surface of the rod body of the first screw 38 that extends out of the top of the support frame 37. Through the threaded engagement of the first fastener 39 and the first screw 38, the vertical displacement stroke of the support plate 36 is limited. At the same time, the engagement between the support frame 37 and the first screw 38 can constrain the horizontal displacement of the support plate 36.

[0035] Under ship navigation conditions, when the hull experiences vertical vibration, the explosion-proof cabinet 1 causes the support plate 36 to tend to shift vertically. The support plate 36 sequentially transmits the vibration load to the second rubber pad 35, the first spring 34, and the first rubber pad 33. The first spring 34 absorbs the vibration energy through elastic deformation, and the first rubber pad 33 and the second rubber pad 35 further buffer and attenuate the vibration, preventing the vibration from being directly transmitted to the channel steel 31 and the hull structure. At the same time, it isolates the rigid contact between the metal components. When the hull experiences horizontal alternating loads due to rolling and pitching, the support frame 37 and the first rubber pad 35 installed inside it... The screw 38 forms a horizontal limiting constraint, restricting the horizontal movement of the support plate 36 and the explosion-proof cabinet 1. At the same time, the first fastener 39 restricts the maximum vertical lifting displacement of the support plate 36, preventing the first spring 34 from excessively deforming and becoming unstable, thus ensuring the continuous effectiveness of the buffer structure. The cabinet door 6 provides an openable and closable operating channel for the installation of internal components in the inner compartment 2, improving the ease of operation of the device. The flame-retardant and explosion-proof sealing strip fills the gap between the cabinet door 6 and the cabinet body, achieving a fully enclosed explosion-proof seal for the explosion-proof cabinet 1, effectively preventing flammable and explosive oil and gas in the fuel preparation room from seeping into the inner compartment 2 of the explosion-proof cabinet 1.

[0036] The inner wall of the inner compartment 2 is provided with a sliding partition assembly 4. The sliding partition assembly 4 includes a slide rail 41. The slide rail 41 is located at the top and bottom of both sides of the inner wall of the inner compartment 2. Side plates 42 are slidably connected between the slide rails 41. A partition 43 is provided on the opposite side of the two side plates 42. The number of partitions 43 is three.

[0037] Specifically, the pull-out side panel 42, together with three partitions 43, divides the inner compartment 2 into multiple independent storage spaces, enabling the fire extinguishing medium storage components of the fire-fighting device to be stored separately and in a classified manner, avoiding mutual interference between different components, and improving the regularity of the spatial layout of the inner compartment 2 and the safety of component operation.

[0038] The explosion-proof cabinet 1 is provided with a positioning mechanism 5 at its rear end. The positioning mechanism 5 includes a connecting seat 51. One side of the connecting seat 51 is fixedly connected to one side of the explosion-proof cabinet 1. A second screw 52 is provided through one side of the connecting seat 51. A fixing frame 53 is fixedly connected to one side of the second screw 52. The fixing frame 53 is fixed to the bulkhead of the ship's fuel preparation room by expansion bolts. A conductive rubber pad is provided on the contact surface between the fixing frame 53 and the ship's bulkhead. The conductive rubber pad is connected to the anti-static grounding terminal of the explosion-proof cabinet 1. Positioning holes 9 are provided at the rear end of the fixing frame 53. The positioning holes 9 are symmetrically arranged. A second spring 54 is sleeved between the second screw 52 and the fixing frame 53. A second fastener 55 is threadedly connected to one side of the surface of the second screw 52.

[0039] Specifically: Through the cooperative structure of connecting seat 51, second screw 52, ​​and second fastener 55, rotating the second fastener 55 flexibly adjusts the installation distance between the fixing frame 53 and the explosion-proof cabinet 1, improving the installation versatility and adaptability of the device. The second spring 54 is limited between the connecting seat 51 and the fixing frame 53, forming a continuous flexible buffer structure, effectively absorbing the alternating impact loads caused by rolling and pitching during ship navigation, avoiding direct transmission of impact to the explosion-proof cabinet 1 and causing cabinet deformation, ensuring uniform stress after cabinet installation, and improving installation stability. The symmetrically arranged positioning holes 9 ensure uniform stress at the connection points between the fixing frame 53 and the bulkhead, improving the installation firmness and structural stability of the explosion-proof cabinet 1. The conductive rubber pad effectively fills the installation gap between the fixing frame 53 and the bulkhead, enhancing installation stability. The fixing frame 53 is fixed to the ship's bulkhead by expansion bolts, ensuring the stability and safety of the explosion-proof cabinet 1 installation.

[0040] The explosion-proof cabinet 1 is equipped with a ventilation mechanism 7 on its top. The ventilation mechanism 7 includes an outer shell 71. Dust covers 8 are fixedly connected to both sides of the top of the outer shell 71. The dust covers 8 are symmetrically arranged. The bottom of the outer shell 71 is connected to the explosion-proof cabinet 1. A connecting frame 72 is fixedly connected to the inner cavity of the outer shell 71. A cooling fan 73 is fixedly connected to the top of the connecting frame 72.

[0041] Specifically: Cooling fan 73 actively drives the air circulation in the inner compartment 2 of explosion-proof cabinet 1, quickly removing the heat generated by the operation of electrical control components in the inner compartment 2, avoiding component failure due to long-term high-temperature operation, ensuring the stability and reliability of the fire protection device control circuit, and improving the overall operational safety of the device. Dust cover 8 provides shielding protection for the ventilation opening of ventilation mechanism 7, preventing the electrical components in the inner compartment 2 from being corroded and extending the service life of the device.

[0042] The working principle of this invention is as follows: first, the installation point is aligned by using the positioning hole 9, and then the fixing bracket 53 is rigidly fixed to the bulkhead by using expansion bolts.

[0043] The second spring 54, which is sleeved on the second screw 52, ​​is limited between the connecting seat 51 and the fixed frame 53. After being locked, it forms a continuous flexible pre-tightening buffer structure, which on the one hand offsets the installation stress caused by the flatness error of the bulkhead, so that the connection points of the explosion-proof cabinet 1 are evenly stressed after installation, and avoids the cabinet from deforming due to uneven stress.

[0044] When the ship's main engine and propeller generate continuous vertical vibration, the explosion-proof cabinet 1 drives the support plate 36 to generate a vertical displacement tendency. The vibration load is transmitted sequentially through the support plate 36 to the second rubber pad 35, the first spring 34, and the first rubber pad 33. The first spring 34 absorbs the vibration energy through its own elastic deformation, and the first rubber pad 33 and the second rubber pad 35 further buffer and attenuate the remaining vibration.

[0045] When a ship encounters extreme sea conditions and generates horizontal alternating loads and vertical impact loads due to large-angle rolling and pitching, the vertically arranged support frames 37 on both sides of the top of the channel steel 31, together with the first screw 38 passing through the top through hole of the support frame 37, form a horizontal rigid constraint, which restricts the horizontal movement of the support plate 36 and the explosion-proof cabinet 1. The first fastener 39 restricts the maximum vertical lifting displacement of the support plate 36, and prevents the first spring 34 from undergoing plastic deformation and instability due to excessive stretching, thus ensuring the continuous effectiveness of the buffer structure and keeping the explosion-proof cabinet 1 in a stable installation state under harsh navigation conditions.

[0046] The partition 43 divides the inner compartment 2 into multiple independent storage spaces, classifying and isolating the fire extinguishing medium storage components of the fire-fighting device, thereby improving the regularity of the spatial layout of the inner compartment 2 and the safety of component operation.

[0047] During routine installation, maintenance, and replacement of internal components, the side panel 42 can be pulled out along the slide rail 41 as a whole to quickly expose all the components inside the inner compartment 2.

[0048] When the cooling fan 73 is running, it actively drives the air circulation between the inner chamber 2 and the external environment, quickly removing the heat generated by the operation of the electrical control components in the inner chamber 2, preventing the components from malfunctioning due to long-term high-temperature operation, and improving the overall operational safety of the device.

[0049] The above-described embodiments are merely preferred embodiments of the present invention and not limitations. Those skilled in the art should understand that the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention without departing from the technical solution and inventive concept of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A combined fire-fighting device for a ship's fuel preparation room, comprising an explosion-proof cabinet, characterized in that: The explosion-proof cabinet has an inner compartment on its inner wall and an anti-vibration mounting assembly at its bottom. The seismic installation assembly includes two channel steels, with a connecting rod fixedly connected between them. A first rubber pad is fixedly connected to both sides of the inner cavity of each channel steel. A first spring is fixedly connected to the top of each first rubber pad, extending through the outer surface of the channel steel. A second rubber pad is fixedly connected to the top of the first spring, and a support plate is fixedly connected to the top of the second rubber pad. Support frames are fixedly connected to both sides of the top of each channel steel. A first screw is threaded through the top of each support frame, with its top fixedly connected to the support plate. A first fastener is threaded onto the bottom surface of the first screw.

2. A combined fire-fighting device for a ship's fuel preparation room according to claim 1, characterized in that: The inner wall of the inner compartment is provided with a sliding partition assembly, which includes a slide rail. The slide rail is located at the top and bottom of both sides of the inner wall of the inner compartment. Side plates are slidably connected between the slide rails. A partition is provided on one side of the two side plates facing each other. The number of partitions is three.

3. A combined fire-fighting device for a ship's fuel preparation room according to claim 1, characterized in that: The explosion-proof cabinet is provided with a positioning mechanism at its rear end. The positioning mechanism includes a connecting seat, one side of which is fixedly connected to one side of the explosion-proof cabinet. A second screw is provided through one side of the connecting seat. A fixing frame is fixedly connected to one side of the second screw. A second spring is sleeved between the second screw and the fixing frame. A second fastener is threaded onto one side of the surface of the second screw.

4. A combined fire-fighting device for a ship's fuel preparation room according to claim 1, characterized in that: The explosion-proof cabinet has a door on one side of its surface, and a handle is fixedly connected to one side of the door surface.

5. A combined fire-fighting device for a ship's fuel preparation room according to claim 1, characterized in that: The explosion-proof cabinet is equipped with a ventilation mechanism on its top. The ventilation mechanism includes a shell, the bottom of which is connected to the explosion-proof cabinet. A connecting frame is fixedly connected to the inner cavity of the shell, and a cooling fan is fixedly connected to the top of the connecting frame.

6. A combined fire-fighting device for a ship's fuel preparation room according to claim 5, characterized in that: Dust covers are fixedly connected to both sides of the top of the outer shell, and the dust covers are arranged symmetrically.

7. A combined fire-fighting device for a ship's fuel preparation room according to claim 3, characterized in that: The rear end of each fixing frame is provided with a positioning hole, and the positioning holes are arranged symmetrically.

8. A combined fire-fighting device for a ship's fuel preparation room according to claim 3, characterized in that: The mounting bracket is fitted with a conductive rubber pad on the surface that contacts the ship's bulkhead, and the conductive rubber pad is connected to the anti-static grounding terminal of the explosion-proof cabinet.

9. A combined fire-fighting device for a ship's fuel preparation room according to claim 4, characterized in that: The cabinet door and the explosion-proof cabinet are fitted with flame-retardant and explosion-proof sealing strips.

10. A combined fire-fighting device for a ship's fuel preparation room according to claim 3, characterized in that: The mounting bracket is fixed to the bulkhead of the ship's fuel preparation compartment by expansion bolts.

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