Protective hydrogen fuel ship

Abstract

The invention relates to the technical field of hydrogen fuel ships, in particular to a protective hydrogen fuel ship which comprises a ship body and a deck installed in the upper portion of the ship body, a hydrogen cylinder containing frame is installed on the upper portion of the left side of the deck, and a ship bottom body is fixed to the bottom face of the ship body. The lower portion of the left side of the hull bottom body is connected with a pod shell through a protection adjusting assembly, a propeller shell is fixed to the lower portion of the pod shell, a propeller is connected to the left side of the propeller shell, and a shielding protection assembly is connected to the left side of the propeller shell. According to the protection type hydrogen fuel ship, through the use of the protection adjusting assembly, the situation that the propeller installed at the stern makes contact with the bottom of a river channel and is scratched and damaged can be avoided, then the propeller shell and the propeller are well protected, the hydrogen fuel ship can conveniently and well run, and the service life of the hydrogen fuel ship is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen fuel ships, and specifically to a protective hydrogen fuel ship. Background Art

[0002] Ship transportation is one of the important ways of global trade. Since traditional ships using fossil fuels will produce a large amount of carbon emissions and pollute the air, there are currently ships using liquid hydrogen as fuel in the market, which can reduce carbon emissions and effectively reduce the impact of ship transportation on climate change and air quality; For example, in the prior art, the patent with the publication number "CN114671002A" and the patent name "A hydrogen fuel ship capable of reducing NOx emissions" discloses the use of methanol as a carrier of hydrogen to produce hydrogen through reforming and supply it to a fuel cell for power generation. By using methanol as a carrier fuel for hydrogen, methanol is stored on the ship to produce hydrogen, which solves the problem of storing hydrogen fuel at low temperature (-253°C) in the shipyard and the problem of low energy density of hydrogen fuel. A hydrogen fuel cell system is set on the ship to generate electricity for the ship to use, effectively avoiding NOx emissions during the combustion of traditional internal combustion engines and meeting the requirements of ports for NOx emissions. At the same time, compared with direct combustion in the cylinder, the energy conversion rate of hydrogen fuel is improved. Introducing methanol as a carrier fuel to produce hydrogen can be stored in a liquid state at normal temperature and pressure, reducing the costs of fuel transportation, refueling and use, and solving the problems of low energy density per unit volume of hydrogen fuel and the need for ultra-low temperature storage under normal pressure or ultra-high pressure storage at normal temperature for hydrogen fuel. Another example is the patent with the publication number "CN118850308A" and the patent name "A combined propulsion transport ship" in the prior art, which discloses a combined propulsion method using a contra-rotating propeller and a podded propeller. The contra-rotating propeller includes a first propeller and a second propeller. Among them, the first propeller is driven by an LNG dual-fuel main engine, and the LNG fuel storage tank provides fuel for the LNG dual-fuel main engine, while the second propeller is driven by a podded propeller, and the podded propeller is driven by electricity. The combined propulsion transport ship also includes a hydrogen fuel cell group and a methane reforming hydrogen production device. The methane reforming hydrogen production device can produce the hydrogen required by the hydrogen fuel cell group, and the hydrogen is input into the hydrogen fuel cell group to generate the electricity required by the podded propeller. Using LNG fuel and electric propulsion can reduce carbon emissions. The combined propulsion method using a contra-rotating propeller and a podded propeller is superior to the conventional single-propeller propulsion, improving the propulsion efficiency of the ship.

[0003] When the ships in the above-mentioned prior art are traveling in rivers or inland rivers with large seasonal water level changes, when they reach the shallow water area of the inland river, the distance between the bottom surface of the hull and the bottom of the river is relatively close at this time. If an external force causes the bow of the hull to tilt upward and the stern to sink downward, at this time, since the propeller in the thruster of the above-mentioned ship is exposed and no protection structure is installed on the thruster, the propeller installed at the stern is likely to rub against the bottom of the river and be damaged, thereby affecting the use of the thruster and the driving operation of the hydrogen fuel ship. Therefore, we propose a protective hydrogen fuel ship to solve the problems raised above. Summary of the Invention

[0004] The purpose of the present invention is to provide a protective hydrogen fuel ship to solve the problem that the propeller in the thruster of the ships on the current market is exposed and no protection structure is installed on the thruster, which will cause the propeller installed at the stern to easily rub against the bottom of the river and be damaged, thereby affecting the use of the thruster and the driving operation of the hydrogen fuel ship as mentioned in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A protective hydrogen fuel ship includes a hull body and a deck installed inside the upper part of the hull body, and a hydrogen cylinder placement frame is installed above the left side of the deck. The bottom surface of the hull body is fixed with a ship bottom body. The lower left side of the ship bottom body is connected to a pod housing through a protection adjustment component. A thruster housing is fixed below the pod housing, and a propeller is connected to the left side of the thruster housing. A shielding protection component is connected to the left side of the thruster housing.

[0006] Preferably, the protection adjustment component includes a protection housing penetratingly installed inside the lower left side of the ship bottom body. A sealing plate is fixed inside the bottom surface of the protection housing. A rotary first connecting rod is sealingly and slidably connected through the sealing plate. The lower end of the rotary first connecting rod is connected to the pod housing.

[0007] Preferably, a bearing plate is arranged above the sealing plate. A convex block is installed on the outer side of the bearing plate and is in snap-fit sliding connection with a groove formed on the inner side wall of the protection housing. The upper end of the rotary first connecting rod is rotatably connected through the middle inside of the bearing plate.

[0008] Preferably, a rotary second connecting rod is penetratingly installed inside the protection housing. The lower end of the rotary second connecting rod is inserted into the rotary first connecting rod. A snap-fit block is installed on the outer side below the rotary second connecting rod and is in snap-fit sliding connection with a snap-fit groove formed on the inner side wall of the rotary first connecting rod.

[0009] Preferably, two second regulation frames are symmetrically installed inside the protective housing, and the inside of the second regulation frame is connected to a second piston assembly through a second connecting spring, and the lower end of the second piston assembly is connected to a bearing plate. The outside of the upper part of the protective housing is penetrated and connected with a second manifold pipe in a "U" shape, and both ends of the second manifold pipe are penetrated and communicated with the inside of the two second regulation frames respectively.

[0010] Preferably, a receiving groove and a placing groove are formed inside the bottom body of the ship, and the placing groove is communicated with the lower right side of the receiving groove. Protective rubber pads are installed on the inner walls of the left and right sides of the receiving groove. Four first regulation frames are installed inside the placing groove. The inside of the first regulation frame is connected to a first piston assembly through a first connecting spring, and the upper end of the first piston assembly is connected to a cross plate. A counterweight column is arranged above the cross plate, and the diameter of the counterweight column is smaller than the height of the receiving groove.

[0011] Preferably, both ends of the first manifold pipe in a "U" shape installed inside the bottom body of the ship are penetrated and communicated with the inside of the two first regulation frames respectively. The left side of the first manifold pipe is connected to a connecting pipe, and the left end of the connecting pipe penetrates through the inside of the bottom body of the ship and is connected to the second manifold pipe.

[0012] Preferably, the shielding and protecting assembly includes a second protection plate penetrating and installed on the outer side of the left end of the thruster housing. A first protection plate is arranged on the left side of the second protection plate. Shielding rods are equidistantly installed on one side surface of the first protection plate close to the second protection plate. The end of the shielding rod away from the first protection plate is in close contact with one side surface of the second protection plate.

[0013] Preferably, a propeller is arranged in the space between the first protection plate and the second protection plate.

[0014] Preferably, guide rods are installed in grooves on the adjacent side surfaces of the first protection plate and the second protection plate. A return spring is sleeved on the outer side of the guide rod. The outer side of the guide rod is slidably connected with an "L"-shaped connecting head. One end of the return spring is connected to the connecting head. A rotating stud is rotatably connected to the inside of the end of the connecting head away from the guide rod. The rotating stud is threadedly connected with a "U"-shaped protection rod. The protection rod is arranged staggered with the shielding rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: For this protected hydrogen fuel ship, through the use of the protection and regulation assembly, the propeller installed at the stern can be prevented from being damaged by rubbing against the bottom of the river channel, and then the thruster housing and the propeller can be well protected, which is convenient for the hydrogen fuel ship to carry out sailing operations well and improves the service life of the hydrogen fuel ship. The specific content is as follows: (1) When an external force acts to cause the bow to tilt upward, the counterweight column rolls towards the stern and separates from the crossplate. Subsequently, the first connecting spring inside the protection and adjustment assembly stores energy and automatically drives the first piston assembly to move upward, sucking the gas in the second control box into the first control box. Therefore, the second piston assembly drives the bearing plate and the first rotating connecting rod to move upward, and the first rotating connecting rod drives the propeller housing and the propeller to move upward. Thus, it can be avoided that the propeller installed at the stern touches the bottom of the river channel and is damaged by rubbing, and then the propeller housing and the propeller can be well protected, facilitating the smooth operation of the hydrogen fuel ship and extending the service life of the hydrogen fuel ship; (2) When the hull body is moving smoothly, after the counterweight column moves back to its original position, it exerts a downward pressure on the crossplate, causing the crossplate to drive multiple first piston assemblies to move downward together. Subsequently, the gas in the first control box can be conveyed into the second control box. Thus, the second piston assembly drives the bearing plate and the first rotating connecting rod to move downward and reset, and then it can be automatically adjusted and reset, maximizing the avoidance of bottom-touching accidents; Through the snap-fit sliding connection between the snap-fit block and the snap-fit groove on the inner side wall of the first rotating connecting rod, when the motor above the protection housing drives the second rotating connecting rod to rotate later, the first rotating connecting rod can rotate together. Thus, the propeller housing and the propeller can be driven to rotate 360° in the horizontal plane, without affecting the adjustment operation of the thrust direction later; (3) The "U"-shaped protection rod in the shielding and protection assembly forms a sliding structure with the first protection plate and the second protection plate through the connecting head. Subsequently, when the protection rod touches the bottom of the river channel, the collision force will be reduced by the reset spring, avoiding damage to the second protection plate and the propeller housing due to a large impact force, and further protecting the propeller housing and the propeller; Further, through the modular design among the first protection plate, the second protection plate, and the protection rod, when the protection rod is damaged later, only the protection rod needs to be disassembled and replaced, without replacing the first protection plate and the second protection plate. This not only greatly shortens the maintenance time but also saves the maintenance cost. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structure diagram of the present invention; Figure 2 It is a bottom view structure diagram of the present invention; Figure 3 It is a cross-sectional structure diagram of the connection between the bottom body of the ship and the protection housing of the present invention; Figure 4 It is a bottom view structure diagram of the connection between the first control box and the bottom body of the ship of the present invention; Figure 5 It is a partial cross-sectional structure diagram of the first control box of the present invention; Figure 6 Schematic cross-sectional structure diagram of the protective housing of the present invention; Figure 7 Schematic cross-sectional structure diagram of the second regulation box of the present invention; Figure 8 Schematic separation structure diagram of the thruster housing and the second protective plate of the present invention; Figure 9 Schematic three-dimensional structure diagram of the first protective plate of the present invention; Figure 10 Schematic separation structure diagram of the first protective plate and the second protective plate of the present invention; Figure 11 Schematic cross-sectional connection structure diagram of the second protective plate and the connector of the present invention; Figure 12 For the present invention Figure 9 Schematic enlarged structure diagram at position A in

[0017] In the figure: 1, hull body; 2, bottom hull body; 201, accommodation groove; 202, placement groove; 3, deck; 4, hydrogen cylinder placement frame; 5, thruster housing; 6, first protective plate; 7, protective housing; 8, counterweight column; 9, first regulation box; 91, first piston assembly; 92, first connecting spring; 10, protective rubber pad; 11, cross plate; 12, connecting pipe; 13, first manifold pipe; 14, pod housing; 15, rotary first connecting rod; 16, sealing plate; 17, bearing plate; 171, convex block; 18, second regulation box; 181, second piston assembly; 182, second connecting spring; 19, rotary second connecting rod; 191, clamping block; 20, second manifold pipe; 21, second protective plate; 22, propeller; 23, protective rod; 24, shielding rod; 25, connector; 251, rotating stud; 26, guide rod; 261, return spring. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 - 12 , the present invention provides the following technical solutions: Embodiment 1: In the protective hydrogen fuel ship of this embodiment, the protective adjustment component can automatically drive the propeller housing 5 and the propeller 22 to move upward, thereby preventing the propeller 22 installed at the stern from rubbing against the bottom of the river channel and being damaged. Subsequently, the propeller housing 5 and the propeller 22 are well protected, which is convenient for improving the service life of the hydrogen fuel ship. The specific structure is shown in the attached Figures 1 - 7 As shown, it includes a hull body 1 and a deck 3 installed inside the upper part of the hull body 1. A hydrogen cylinder placement frame 4 is installed above the left side of the deck 3. The bottom surface of the hull body 1 is fixed with a bottom hull body 2. The left lower part of the bottom hull body 2 is connected to a pod housing 14 through a protective adjustment component. A propeller housing 5 is fixed below the pod housing 14. A propeller 22 is connected to the left side of the propeller housing 5. A shielding and protection component is connected to the left side of the propeller housing 5. The protective adjustment component includes a protective housing 7 installed through the left lower part of the bottom hull body 2. A sealing plate 16 is fixed inside the bottom surface of the protective housing 7. A rotary first connecting rod 15 is sealingly and slidably connected through the inside of the sealing plate 16. The lower end of the rotary first connecting rod 15 is connected to the pod housing 14.

[0020] Above the sealing plate 16, there is a bearing plate 17. A convex block 171 which is in snap-fit sliding connection with a groove opened on the inner wall of the protective housing 7 is installed on the outer side of the bearing plate 17. The upper end of the rotating first connecting rod 15 is rotatably connected through the middle inside of the bearing plate 17. The rotating second connecting rod 19 is installed through the inside of the protective housing 7, and the lower end of the rotating second connecting rod 19 is inserted into the rotating first connecting rod 15. A clamping block 191 which is in snap-fit sliding connection with a clamping groove opened on the inner wall of the rotating first connecting rod 15 is installed on the outer side below the rotating second connecting rod 19. Two second regulating frames 18 are symmetrically installed inside the protective housing 7. The inside of the second regulating frame 18 is connected to a second piston assembly 181 through a second connecting spring 182. The lower end of the second piston assembly 181 is connected to the bearing plate 17. A second manifold pipe 20 in a "U" shape is connected through the outer side above the protective housing 7. The two ends of the second manifold pipe 20 are respectively in through communication with the inside of the two second regulating frames 18. A receiving groove 201 and a placement groove 202 are opened inside the bottom hull body 2. The placement groove 202 is communicated with the lower right side of the receiving groove 201. Protective rubber pads 10 are installed on the left and right inner walls of the receiving groove 201. Four first regulating frames 9 are installed inside the placement groove 202. The inside of the first regulating frame 9 is connected to a first piston assembly 91 through a first connecting spring 92. The upper end of the first piston assembly 91 is connected to a cross plate 11. A counterweight column 8 is arranged above the cross plate 11. The diameter of the counterweight column 8 is smaller than the height of the receiving groove 201. The two ends of a first manifold pipe 13 in a "U" shape installed inside the bottom hull body 2 are respectively in through communication with the inside of the two first regulating frames 9. The left side of the first manifold pipe 13 is connected to a connecting pipe 12. The left end of the connecting pipe 12 penetrates through the inside of the bottom hull body 2 and is connected to the second manifold pipe 20.

[0021] When the entire hydrogen fuel ship is traveling in a river or inland river with large seasonal water level changes, when it reaches a shallow water area, the distance between the bottom surface of the ship bottom body 2 and the bottom of the river will be relatively close. If the hydrogen fuel ship sways or tilts due to an external force during travel (this external force can be large wind and waves generated in the natural environment), since the entire hydrogen fuel ship tilts, the bow will tilt upward and the stern will sink downward. At this time, the counterweight column 8 first separates from the cross plate 11 and then rolls towards the stern of the hydrogen fuel ship in the receiving groove 201. The counterweight column 8 collides and contacts the protective rubber pad 10 at the corresponding position, and then automatically drives the first piston assembly 91 and the cross plate 11 to move upward through the energy storage of the first connecting spring 92. The rising first piston assembly 91 can suck the gas in the second regulation box 18 into the first regulation box 9 through the cooperation of the first manifold 13, the connecting pipe 12, and the second manifold 20. At this time, the second piston assembly 181 drives the bearing plate 17 and the rotating first connecting rod 15 to move upward together. At this time, the second connecting spring 182 is compressed and stores energy. The rotating first connecting rod 15 drives the thruster housing 5 and the propeller 22 to move upward a certain distance through the nacelle housing 14, thereby increasing the distance between the bottom surfaces of the thruster housing 5 and the propeller 22 and the bottom of the river. Subsequently, it is possible to avoid the propeller 22 installed at the stern from rubbing against the bottom of the river and being damaged. Therefore, it is possible to well protect the thruster housing 5 and the propeller 22 and facilitate improving the service life of the hydrogen fuel ship.

[0022] When the external force disappears and the hydrogen fuel ship travels smoothly, at this time, the counterweight column 8 automatically moves to the upper part inside the placement groove 202 and contacts the cross plate 11. The counterweight column 8 can be limited through the placement groove 202, so that the counterweight column 8 will not move to the left and separate from the placement groove 202 without an external force. Then, the counterweight column 8 automatically exerts a downward pressure on the cross plate 11 through its own gravity. At this time, the cross plate 11 drives a plurality of first piston assemblies 91 below to move downward together. Similarly to the above, the first piston assembly 91 conveys the gas in the first regulation box 9 to the second regulation box 18 through the cooperation of the first manifold 13, the connecting pipe 12, and the second manifold 20. At this time, the second piston assembly 181 drives the bearing plate 17 and the rotating first connecting rod 15 to move downward and reset, thereby resetting the thruster housing 5 and the propeller 22. When it is necessary to regulate the traveling direction of the hydrogen fuel ship, at this time, the motor above the protective housing 7 is started. The output end of the motor drives the rotating second connecting rod 19 to rotate. The rotating second connecting rod 19 drives the rotating first connecting rod 15 to rotate through the clamping block 191. The rotating first connecting rod 15 drives the nacelle housing 14, the thruster housing 5, and the propeller 22 to rotate 360° in the horizontal plane. Therefore, it will not affect the subsequent regulation operation of the thrust direction. Then, the motor in the thruster housing 5 is started to drive the propeller 22 to rotate, and then drive the hydrogen fuel ship to perform a traveling operation.

[0023] Embodiment 2: For the protected hydrogen fuel ship in this embodiment, on the basis of Embodiment 1, the propeller 22 can be further protected by the shielding and protection component, avoiding damage to the propeller 22 due to collision. For the specific structure, refer to the attached Figure 1 and the attached Figure 6 as well as the attached Figures 8 - 12 As shown, the shielding and protection component includes a second protection plate 21 installed through the left end outside of the thruster housing 5. A first protection plate 6 is arranged on the left side of the second protection plate 21. Shielding rods 24 are equidistantly installed on the side surface of the first protection plate 6 close to the second protection plate 21. The end of the shielding rod 24 away from the first protection plate 6 is in contact with the side surface of the second protection plate 21. A propeller 22 is arranged in the space between the first protection plate 6 and the second protection plate 21. Guide rods 26 are installed in grooves on the adjacent side surfaces of the first protection plate 6 and the second protection plate 21. A return spring 261 is sleeved on the outside of the guide rod 26. The outside of the guide rod 26 is slidably connected through an "L"-shaped connector 25. One end of the return spring 261 is connected to the connector 25. A rotating stud 251 is rotatably connected inside the end of the connector 25 away from the guide rod 26. The rotating stud 251 is threadedly connected to a "U"-shaped protection rod 23. The protection rod 23 is arranged staggered with the shielding rod 24.

[0024] When the protection rod 23 at the corresponding position below the propeller 22 touches the bottom of the river channel, the collision force will cause the protection rod 23 to drive the connector 25 to slide towards the center of the first protection plate 6 and the second protection plate 21. At this time, the connector 25 slides in the guide rod 26 to compress the return spring 261, so that the return spring 261 can reduce the collision force, thereby avoiding damage to the first protection plate 6, the second protection plate 21, the thruster housing 5 and the propeller 22 due to a large impact force, and further protecting the thruster housing 5 and the propeller 22. When some of the protection rods 23 are damaged and need to be replaced after long-term use, only need to manually rotate the rotating stud 251 inserted into some of the damaged protection rods 23, and then separate the rotating stud 251 from the protection rod 23, and then separate the protection rod 23 from the connector 25, so that some of the damaged protection rods 23 can be disassembled and replaced, without replacing the entire first protection plate 6 and the second protection plate 21. Therefore, not only the maintenance time is greatly shortened, but also the maintenance cost is saved, thus completing a series of work.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A protective hydrogen fuel ship, comprising a hull body (1) and a deck (3) installed inside above the hull body (1), and a hydrogen cylinder placement frame (4) is installed above the left side of the deck (3), and a ship bottom body (2) is fixed to the bottom surface of the hull body (1), characterized in that: The left lower side of the bottom hull body (2) is connected to the pod housing (14) through a protection and adjustment assembly. A propeller housing (5) is fixed below the pod housing (14), and a propeller (22) is connected to the left side of the propeller housing (5). A shielding and protection assembly is connected to the left side of the propeller housing (5).

2. The protective hydrogen fuel ship according to claim 1, wherein: The protection and adjustment assembly includes a protection housing (7) installed through the inside of the left lower part of the bottom hull body (2). A sealing plate (16) is fixed inside the bottom surface of the protection housing (7). A rotary first connecting rod (15) is slidably connected through the sealing plate (16) in a sealed manner, and the lower end of the rotary first connecting rod (15) is connected to the pod housing (14).

3. The protective hydrogen fuel ship according to claim 2, characterized in that: Above the sealing plate (16), there is a bearing plate (17). A convex block (171) that is snap-fitted and slidably connected to a groove formed in the inner side wall of the protection housing (7) is installed on the outer side of the bearing plate (17). The upper end of the rotary first connecting rod (15) is rotatably connected through the middle inside of the bearing plate (17).

4. A protective hydrogen fuel ship according to claim 2, characterized in that: A rotary second connecting rod (19) is installed through the inside of the protection housing (7). The lower end of the rotary second connecting rod (19) is inserted into the rotary first connecting rod (15), and a clamping block (191) that is snap-fitted and slidably connected to a clamping groove formed in the inner side wall of the rotary first connecting rod (15) is installed on the outer side below the rotary second connecting rod (19).

5. The protective hydrogen fuel ship according to claim 3, characterized in that: Two second adjustment frames (18) are symmetrically installed inside the protection housing (7). Inside the second adjustment frame (18), a second piston assembly (181) is connected through a second connecting spring (182). The lower end of the second piston assembly (181) is connected to the bearing plate (17). The outer side above the protection housing (7) is connected through a "U"-shaped second manifold pipe (20). The two ends of the second manifold pipe (20) are respectively connected through the inside of the two second adjustment frames (18) in a communicating manner.

6. A protective hydrogen fuel ship according to claim 5, characterized in that: An accommodation groove (201) and a placement groove (202) are formed inside the bottom hull body (2). The placement groove (202) is communicated and arranged below the right side of the accommodation groove (201). Protection rubber pads (10) are installed on the left and right inner side walls of the accommodation groove (201). Four groups of first adjustment frames (9) are installed inside the placement groove (202). Inside the first adjustment frame (9), a first piston assembly (91) is connected through a first connecting spring (92). The upper end of the first piston assembly (91) is connected to a cross plate (11). Above the cross plate (11), there is a weight column (8), and the diameter of the weight column (8) is smaller than the height of the accommodation groove (201).

7. A protective hydrogen fuel ship according to claim 6, characterized in that: The two ends of a "U"-shaped first manifold pipe (13) installed inside the bottom hull body (2) are respectively connected through the inside of the two first adjustment frames (9) in a communicating manner. The left side of the first manifold pipe (13) is connected to a connecting pipe (12), and the left end of the connecting pipe (12) penetrates through the inside of the bottom hull body (2) and is connected to the second manifold pipe (20).

8. The protective hydrogen fuel ship according to claim 1, characterized in that: The shielding and protection component includes a second protection plate (21) installed through the outer side of the left end of the thruster housing (5), and a first protection plate (6) is arranged on the left side of the second protection plate (21). Shielding rods (24) are equidistantly installed on one side surface of the first protection plate (6) close to the second protection plate (21), and one end of the shielding rod (24) away from the first protection plate (6) is in contact with one side surface of the second protection plate (21).

9. The protective hydrogen fuel ship according to claim 8, wherein: A propeller (22) is arranged in the space between the first protection plate (6) and the second protection plate (21).

10. A protective hydrogen fuel ship according to claim 8, characterized in that: Guide rods (26) are installed in grooves on the adjacent side surfaces of the first protection plate (6) and the second protection plate (21), and a return spring (261) is sleeved on the outer side of the guide rod (26). A connecting head (25) in an "L" shape is slidably connected through the outer side of the guide rod (26). One end of the return spring (261) is connected to the connecting head (25), and a rotating stud (251) is rotatably connected inside one end of the connecting head (25) away from the guide rod (26). The rotating stud (251) is threadedly connected to a protection rod (23) in a "U" shape, and the protection rod (23) is arranged in a staggered manner with the shielding rod (24).

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