Liquid ammonia fuel leakage-proof integrated system driven by wave energy

Abstract

The invention relates to the technical field of ship fuel storage, and discloses a wave energy-driven liquid ammonia fuel leakage-proof integrated system, which comprises: a seawater desalination system, which comprises a wave energy pump and a seawater cavity, outside seawater is conveyed into the seawater cavity through the wave energy pump, and is desalted through high-temperature flue gas in a high-temperature flue gas pipe; the desalted water is stored in the water storage tank; the evaporation system comprises a vacuum low-temperature evaporator and a storage tank, the used ammonium nitrate solution is subjected to low-temperature evaporation in the vacuum low-temperature evaporator through flue gas subjected to heat exchange with seawater, and produced ammonium nitrate particles and water are stored in the storage tank and the water storage tank respectively; the spraying system comprises a spraying tower, a spraying part and a stirring part, the flue gas subjected to heat exchange is conveyed into the spraying tower, water in the water storage tank is sprayed into the spraying tower through the spraying part to form an ammonium nitrate solution with the flue gas, and the ammonium nitrate solution is conveyed into the vacuum low-temperature evaporator again after being used. The liquid ammonia fuel is prevented from leaking, and the energy utilization rate is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of ship fuel storage, and particularly to an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy. Background Art

[0002] The cost of liquid ammonia fuel is relatively low. The products of combustion are mainly nitrogen and water, without generating carbon dioxide, and its storage and transportation technologies are already mature. At the same time, ammonia gas has a pungent smell and is easy to be detected once leaked. Against this background, using liquid ammonia fuel for steam turbines has become a new fuel with great development potential at present. However, how to solve the problems of ammonia gas leakage and nitrogen oxides generated during the use of liquid ammonia fuel is still an urgent matter to be solved currently. At present, for the nitrogen oxides generated by gas turbines using liquid ammonia fuel, a denitration device is mostly used to directly remove them. For example, in CN217999722U, a denitration device and a blower are directly used for removal. For the leaked ammonia gas, an ammonia decomposition hydrogen production device is used for utilization. Ammonium nitrate solid and water will undergo an endothermic reaction, so this principle can be used to cool the liquid ammonia fuel to prevent fuel leakage. For the generation of ammonium nitrate solid, in the system shown in CN102583441B, the reaction heat generated by spraying concentrated nitric acid and water is used to remove water, but a high-concentration nitric acid solution is required to reach the temperature required for the reaction.

[0003] Molten salt has the advantages of strong heat storage capacity and recyclability, and has the flexibility of being liquid at high temperature and solid at normal temperature. For example, in the system shown in CN118316125A, molten salt is used to provide heat to activate carbides to form activated carbon. In addition, in "Analysis of Precautions in the Operation of Ammonium Nitrate Production Process", the reaction process, temperature, and required water consumption are clearly defined for the generation of ammonium nitrate solid.

[0004] In the above-mentioned liquid ammonia combustion system, the treatment of nitrogen oxides, the leakage of ammonia gas, and the generation of ammonium nitrate solid are not complete, and there are also the following problems:

[0005] 1. An additional denitration device is required to treat nitrogen oxides, which will further increase the power generation cost.

[0006] 2. For the ammonia gas generated by the leakage of liquid ammonia fuel, an additional external electrolysis device is required for electrolysis, which will increase the cost of the power plant and reduce the economic benefits of the power station.

[0007] 3. For the generation of ammonium nitrate solid, a high concentration of nitric acid is required to reach the temperature required for the reaction, but the power plant does not have such conditions.

[0008] 4. With the rapid development of modern power plants, the power generation cost of power plants using natural gas is high, and the storage and application of natural gas require large-scale equipment to solve.

[0009] 5. Existing natural gas-fired power plants will generate a large amount of carbon dioxide. If not properly treated, it will pollute the atmosphere and exacerbate the generation of the greenhouse effect.

[0010] Therefore, there is an urgent need for an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy to solve the above problems. Summary of the Invention

[0011] The object of the present invention is to provide an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy to solve the problems existing in the above-mentioned prior art.

[0012] To achieve the above object, the present invention provides the following solution: The present invention provides an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy, including:

[0013] A seawater desalination system, including a wave energy pump and a seawater chamber. External seawater is transported to the seawater chamber through the wave energy pump and desalinated by the high-temperature flue gas in the high-temperature flue gas pipe. The desalinated water is stored in a water storage tank.

[0014] An evaporation system, including a vacuum low-temperature evaporator and a storage tank. The used ammonium nitrate solution is subjected to low-temperature evaporation in the vacuum low-temperature evaporator by the flue gas after heat exchange with seawater. The generated ammonium nitrate particles and water are respectively stored in the storage tank and the water storage tank.

[0015] A spraying system, including a spraying tower, a spraying member and a stirring member. The flue gas exchanged heat in the vacuum low-temperature evaporator is transported to the spraying tower, and the water in the water storage tank is sprayed into the spraying tower through the spraying member to form an ammonium nitrate solution with the flue gas. The ammonium nitrate solution is transported back to the vacuum low-temperature evaporator after use.

[0016] According to an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy provided by the present invention, the wave energy pump includes:

[0017] A first housing, arranged on the sea surface, and a first valve is installed on the first housing;

[0018] A first piston, slidably connected in the first housing through a first spring. One end of the first spring is fixedly connected to the top end inside the first housing through a fixer;

[0019] External seawater enters the first housing through the first valve, and the wave drives the first piston to move upward to compress the seawater. The compressed seawater is transported to the seawater chamber through a seawater pipe.

[0020] According to an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy provided by the present invention, one end of the high-temperature flue gas pipe extends out of the seawater chamber and is connected to one end of a medium-temperature flue gas pipe, the other end of the medium-temperature flue gas pipe penetrates through the vacuum low-temperature evaporator and is connected to one end of a low-temperature flue gas pipe, and the other end of the low-temperature flue gas pipe extends into the spray tower.

[0021] According to an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy provided by the present invention, the spray member includes:

[0022] A sprayer, fixedly connected to the inner top of the spray tower;

[0023] A second housing, arranged on the sea surface, and a second valve is installed on the second housing;

[0024] A second piston, slidably connected to the second housing through a second spring, and one end of the second spring is fixedly connected to the inner top of the second housing;

[0025] The water in the water storage tank is conveyed to the second housing through a water delivery pipe, and the second piston is driven by waves to move upward to squeeze the water into the sprayer.

[0026] According to an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy provided by the present invention, the stirring member includes:

[0027] A rotating shaft, rotatably connected to the spray tower;

[0028] A plurality of stirring blades are fixedly connected to the rotating shaft for promoting the reaction between water and flue gas;

[0029] A guide vane, fixedly connected to one end of the rotating shaft, and the guide vane rotates by wave energy.

[0030] According to an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy provided by the present invention, a plurality of fins are fixedly connected to the outer side wall of the high-temperature flue gas pipe.

[0031] According to an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy provided by the present invention, the spray tower is connected to a liquid storage tank, the liquid storage tank is connected to a control valve, and ammonium nitrate solution is stored in the liquid storage tank.

[0032] According to an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy provided by the present invention, an ammonium nitrate delivery pipe is provided on the vacuum low-temperature evaporator, and the ammonium nitrate solution in the liquid storage tank absorbs the heat of the liquid ammonia fuel and is heated to 20 °C and then conveyed to the vacuum low-temperature evaporator through the ammonium nitrate delivery pipe.

[0033] According to an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy provided by the present invention, the first valve includes a first inlet and a first outlet. External seawater enters the first housing through the first inlet, and the first outlet is communicated with the seawater pipe;

[0034] The second valve includes a second inlet and a second outlet. The second inlet is communicated with the water delivery pipe, and the second outlet is communicated with the sprayer.

[0035] According to an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy provided by the present invention, the temperature of the high-temperature flue gas is 400 - 500 °C. After heat exchange for seawater desalination, the temperature of the flue gas is 70 - 80 °C. After heat exchange through the vacuum low-temperature evaporator, the temperature of the flue gas is 30 - 40 °C.

[0036] Compared with the prior art, the present invention has the following advantages and technical effects:

[0037] For an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy provided by the present invention, when in use, seawater is transported to the seawater cavity through a wave energy pump. Seawater desalination is carried out using high-temperature flue gas. The desalinated water is stored in a water storage tank. The flue gas after heat exchange is transported to the vacuum low-temperature evaporator again to exchange heat with the used ammonium nitrate solution. The ammonium nitrate particles and water generated after evaporation are respectively stored in a storage tank and a water storage tank. The flue gas after heat exchange and the ammonium nitrate particles are both transported to a spray tower. Water in the water storage tank is sprayed into the spray tower through a spray member to regenerate ammonium nitrate solution again, and the mixing efficiency is improved through a stirring member. The generated ammonium nitrate solution is used to prevent the leakage of liquid ammonia fuel, and after use, it is transported back to the vacuum low-temperature evaporator for cyclic treatment. The present invention uses energy sources such as wave energy and flue gas to realize seawater desalination, the preparation and use of ammonium nitrate solution, realize the leakage prevention treatment of liquid ammonia fuel, improve energy utilization efficiency, and realize cyclic operation. Description of the Drawings

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0039] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 It is a schematic diagram of the structure of the stirring member of the present invention;

[0041] Among them, 1. First piston; 2. First spring; 3. Fixer; 4. First valve; 401. First inlet; 402. First outlet; 5. Seawater pipe; 6. Fin; 7. Seawater chamber; 8. High-temperature flue gas pipe; 9. Water vapor pipe; 10. Water storage tank; 11. Vacuum low-temperature evaporator; 12. Storage tank; 13. Ammonium nitrate delivery pipe; 14. Medium-temperature flue gas pipe; 15. Low-temperature flue gas pipe; 16. Second piston; 17. Water delivery pipe; 18. Second valve; 1801. Second inlet; 1802. Second outlet; 19. Second spring; 20. Sprayer; 21. Spray tower; 22. Stirring blade; 23. Rotating shaft; 24. Guide vane; 25. Liquid storage tank; 26. Control valve. Detailed implementation manners

[0042] 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.

[0043] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0044] Refer to Figure 1 - Figure 2 , the present invention provides an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy, including:

[0045] A seawater desalination system, including a wave energy pump and a seawater chamber 7. External seawater is transported to the seawater chamber 7 through the wave energy pump and desalinated by the high-temperature flue gas in the high-temperature flue gas pipe 8. The desalinated water is stored in the water storage tank 10;

[0046] An evaporation system, including a vacuum low-temperature evaporator 11 and a storage tank 12. The used ammonium nitrate solution is subjected to low-temperature evaporation in the vacuum low-temperature evaporator 11 through the flue gas after heat exchange with seawater. The ammonium nitrate particles and water produced after evaporation are respectively stored in the storage tank 12 and the water storage tank 10;

[0047] A spraying system, including a spray tower 21, a spraying member, and a stirring member. The flue gas exchanged heat in the vacuum low-temperature evaporator 11 is transported to the spray tower 21, and the water in the water storage tank 10 is sprayed into the spray tower 21 through the spraying member to form an ammonium nitrate solution with the flue gas. The ammonium nitrate solution is transported back to the vacuum low-temperature evaporator 11 after use.

[0048] In an embodiment of the present invention, during use, seawater is pumped into the seawater chamber 7 by a wave energy pump, and seawater desalination is carried out using high-temperature flue gas. The desalinated water is stored in the water storage tank 10. The flue gas after heat exchange is transported to the vacuum low-temperature evaporator 11 again to exchange heat with the used ammonium nitrate solution. The ammonium nitrate particles and water produced after evaporation are stored in the storage tank 12 and the water storage tank 10 respectively. The flue gas after heat exchange and the ammonium nitrate particles are both transported into the spray tower 21. The water in the water storage tank 10 is sprayed into the spray tower 21 through a spraying member to regenerate ammonium nitrate solution again, and the mixing efficiency is improved through a stirring member. The leakage of liquid ammonia fuel is prevented by the generated ammonium nitrate solution, and it is transported back to the vacuum low-temperature evaporator 11 for cyclic treatment after use.

[0049] As an alternative embodiment, the wave energy pump includes:

[0050] A first housing, disposed on the sea surface, and a first valve 4 is installed on the first housing;

[0051] A first piston 1 is slidably connected to the inside of the first housing through a first spring 2, and one end of the first spring 2 is fixedly connected to the top end inside the first housing through a fixer 3;

[0052] External seawater enters the first housing through the first valve 4, and the seawater is compressed by driving the first piston 1 to move upward by waves. The compressed seawater is transported into the seawater chamber 7 through a seawater pipe 5.

[0053] In an embodiment of the present invention, when seawater enters the first housing from the first inlet 401, it will cause the first spring 2 to be stretched downward. When the wave moves upward, it will cause the first spring 2 to contract upward, and the first piston 1 compresses the seawater upward, so that the seawater is pumped into the seawater chamber 7 through the first outlet 402 and the seawater pipe 5.

[0054] As an alternative embodiment, one end of a high-temperature flue gas pipe 8 extends out of the seawater chamber 7 and is connected to one end of a medium-temperature flue gas pipe 14. The other end of the medium-temperature flue gas pipe 14 penetrates through the vacuum low-temperature evaporator 11 and is connected to one end of a low-temperature flue gas pipe 15. The other end of the low-temperature flue gas pipe 15 extends into the spray tower 21.

[0055] In one embodiment of the present invention, the flue gas exchanges heat with the seawater in the seawater chamber 7 through the high-temperature flue gas pipe 8. The use of fins 6 enables the heat in the flue gas to be quickly released into the seawater, promoting seawater desalination. The desalinated high-temperature water vapor enters the water storage tank 10 through the water vapor pipe 9. The temperature of the flue gas after heat exchange drops to 70-80 degrees Celsius and enters the vacuum low-temperature evaporator 11 through the medium-temperature flue gas pipe 14 to exchange heat with the used ammonium nitrate waste liquid for low-temperature evaporation of the waste liquid. The vacuum low-temperature evaporator 11 adopts a countercurrent method, which can further promote heat exchange. The evaporated water vapor enters the water storage tank 10, and the ammonium nitrate particles enter the storage tank 12 and then enter the spray tower 21 subsequently to form a low-temperature ammonium nitrate solution again. The temperature of the medium-temperature flue gas after heat exchange drops to 30-40 degrees Celsius and enters the spray tower 21 through the low-temperature flue gas pipe 15.

[0056] As an alternative embodiment, the spraying member includes:

[0057] The sprayer 20 is fixedly connected to the inner top of the spray tower 21;

[0058] The second housing is arranged on the sea surface, and a second valve 18 is installed on the second housing;

[0059] The second piston 16 is slidably connected to the second housing through the second spring 19, and one end of the second spring 19 is fixedly connected to the inner top of the second housing;

[0060] The water in the water storage tank 10 is transported to the second housing through the water delivery pipe 17, and the water is squeezed into the sprayer 20 by driving the second piston 16 to move upward by the waves.

[0061] In one embodiment of the present invention, when fresh water enters the inside of the second housing through the second inlet 1801, the second spring 19 is stretched downward. When the wave goes upward, the second spring 19 contracts upward, pulling the second piston 16 to compress the cavity upward, so that the fresh water enters the spray tower 21, and the sprayer 20 sprays the fresh water into the spray tower 21 in a spraying manner.

[0062] As an alternative embodiment, the stirring member includes:

[0063] The rotating shaft 23 is rotatably connected inside the spray tower 21;

[0064] A plurality of stirring blades 22 are fixedly connected to the rotating shaft 23 for promoting the reaction between water and flue gas;

[0065] The guide vane 24 is fixedly connected to one end of the rotating shaft 23, and the guide vane 24 rotates by wave energy.

[0066] In an embodiment of the present invention, since the flow guiding vane 24 changes the direction and speed of fluid flow in the ocean to achieve the purpose of rotation, driving the rotating shaft 23 to rotate, and then driving the stirring vane 22 to rotate. Due to the presence of the stirring vane 22, the low-temperature flue gas, ammonium nitrate particles and water can fully react to form a low-temperature ammonium nitrate solution.

[0067] As an alternative embodiment, a plurality of fins 6 are fixedly connected to the outer side wall of the high-temperature flue gas pipe 8.

[0068] In an embodiment of the present invention, the use of the fins 6 can quickly release the heat in the flue gas into the seawater, promoting seawater desalination.

[0069] As an alternative embodiment, the spray tower 21 is connected to a liquid storage tank 25, the liquid storage tank 25 is connected to a control valve 26, and the liquid storage tank 25 stores an ammonium nitrate solution.

[0070] In an embodiment of the present invention, the generated low-temperature ammonium nitrate solution enters the liquid storage tank 25 with good heat preservation effect, and the low-temperature ammonium nitrate solution is transported to the vicinity of the liquid ammonia fuel through the control valve 26.

[0071] As an alternative embodiment, an ammonium nitrate delivery pipe 13 is provided on the vacuum low-temperature evaporator 11, and the ammonium nitrate solution in the liquid storage tank 25 is heated to 20 °C by absorbing the heat of the liquid ammonia fuel and then transported into the vacuum low-temperature evaporator 11 through the ammonium nitrate delivery pipe 13.

[0072] In an embodiment of the present invention, the generated low-temperature ammonium nitrate solution is transported to the vicinity of the liquid ammonia fuel to prevent the leakage of the liquid ammonia fuel, and gradually absorbs heat and rises to about 20 °C and is discharged, while the used ammonium nitrate waste liquid enters the vacuum low-temperature evaporator 11 through the ammonium nitrate delivery pipe, exchanges heat with the medium-temperature flue gas at 70 - 80 °C, and performs low-temperature evaporation and crystallization at 35 - 40 °C.

[0073] As an alternative embodiment, the first valve 4 includes a first inlet 401 and a first outlet 402, the outside seawater enters the first housing through the first inlet 401, and the first outlet 402 is connected to the seawater pipe 5;

[0074] The second valve 18 includes a second inlet 1801 and a second outlet 1802, the second inlet 1801 is connected to the water delivery pipe 17, and the second outlet 1802 is connected to the sprayer 20.

[0075] In an embodiment of the present invention, the seawater enters through the first inlet 401 and is discharged through the first outlet 402, and the stored fresh water enters through the second inlet 1801 and is discharged through the second outlet 1802.

[0076] As an alternative embodiment, the high-temperature flue gas temperature is 400 - 500 °C, the flue gas temperature after heat exchange with seawater desalination is 70 - 80 °C, and the flue gas temperature after heat exchange with the vacuum low-temperature evaporator 11 is 30 - 40 °C.

[0077] The present invention discloses an integrated system for preventing leakage of liquid ammonia fuel driven by wave energy. When in use, due to the up-and-down undulation of the waves, seawater enters the first shell from the first inlet 401, which will stretch the first spring 2 downward. When the wave goes up, it will make the first spring 2 contract upward, and the first piston 1 compresses the seawater upward, causing the seawater to be pumped into the seawater chamber 7 from the first outlet 402 through the seawater pipe 5. Since the temperature of the ship's flue gas is as high as 400 - 500 degrees Celsius, the waste heat of the ship's flue gas can be used for seawater desalination. The flue gas exchanges heat with the seawater in the seawater chamber 7 through the high-temperature flue gas pipe 8. The use of fins 6 can quickly release the heat in the flue gas into the seawater, promoting seawater desalination. The desalinated high-temperature water vapor enters the water storage tank 10 through the water vapor pipe 9. The temperature of the flue gas after heat exchange drops to 70 - 80 degrees Celsius and enters the vacuum low-temperature evaporator 11 through the medium-temperature flue gas pipe 14, where it exchanges heat with the used ammonium nitrate waste liquid for low-temperature evaporation of the waste liquid. The vacuum low-temperature evaporator 11 adopts a countercurrent method, which can further promote heat exchange. The evaporated water vapor enters the water storage tank 10, and the ammonium nitrate particles enter the storage tank 12, and then enter the spray tower 21 subsequently to form a low-temperature ammonium nitrate solution again. The temperature of the medium-temperature flue gas after re-heat exchange drops to 30 - 40 degrees Celsius and enters the spray tower 21 through the low-temperature flue gas pipe 15. The water in the water storage tank 10 enters the second wave energy pump through the water delivery pipe 17, similar to the first wave energy pump. When fresh water enters the interior of the second shell through the second inlet 1801, the second spring 19 is stretched downward. When the wave goes up, the second spring 19 contracts upward, pulling the second piston 16 upward to compress the cavity, causing the fresh water to enter the spray tower 21. The sprayer 20 sprays the fresh water into the spray tower 21 in a spray manner. Since the guide vane 24 changes the direction and speed of the fluid flow in the ocean to achieve the purpose of rotation, it drives the rotation shaft 23 to rotate, and then drives the stirring blade 22 to rotate. Due to the presence of the stirring blade 22, the low-temperature flue gas, ammonium nitrate particles and water can react fully to form a low-temperature ammonium nitrate solution. The generated low-temperature ammonium nitrate solution enters the liquid storage tank 25 with good heat preservation effect. The low-temperature ammonium nitrate solution is conveyed near the liquid ammonia fuel through the control valve 26, and gradually absorbs heat and rises to about 20 °C and is discharged. Through the control of the control valve 26, the next batch of low-temperature ammonium nitrate solution is introduced to prevent the leakage of liquid ammonia fuel. The used ammonium nitrate waste liquid enters the vacuum low-temperature evaporator 11 through the ammonium nitrate delivery pipe, exchanges heat with the medium-temperature flue gas at 70 - 80 degrees Celsius, and undergoes low-temperature evaporation and crystallization at 35 - 40 degrees Celsius, ensuring that the ammonium nitrate solution will not decompose due to high temperature, and at the same time reducing the temperature of the flue gas to 30 - 40 degrees Celsius so that the subsequent reaction can proceed normally. The generated water vapor and ammonium nitrate particles enter the water storage tank 10 and the storage tank 12 respectively. The water enters the cycle again, and the ammonium nitrate particles are directly introduced into the spray tower 21 to form a low-temperature ammonium nitrate liquid again. Thus, the cycle of the system is realized.

[0078] This application's system is installed on an ocean-going ship. It uses a wave energy pump to supply seawater to the device, desalinate the seawater through high-temperature flue gas, and release the reaction heat into the seawater at the fastest speed in the form of fins to desalinate the seawater. At the same time, the fresh water enters the subsequent reaction, realizing the cyclic progress of the reaction. The wave energy system is used to provide the pressure for the sprayer to spray the water in the water storage tank into the spray tower. At the same time, the stirring blades in the tower are driven by the guide blades in the seawater to realize the stirring of water and particles, enabling the reaction to proceed fully and realizing the full utilization of energy. This system adopts a water circulation system. When the low-temperature ammonium nitrate solution gradually absorbs heat near the liquid ammonia fuel and is discharged at about 20 °C, and a new batch of low-temperature ammonium nitrate solution is introduced through a control valve. And it becomes normal-temperature ammonium nitrate waste liquid, which enters a vacuum low-temperature evaporator with medium-temperature flue gas for low-temperature evaporation crystallization to generate ammonium nitrate particles and fresh water. The fresh water enters the spray tower again through the wave energy pump, and the ammonium nitrate particles directly enter the spray tower to form a low-temperature ammonium nitrate solution again, enabling the reaction to run cyclically.

[0079] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0080] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A wave energy driven liquid ammonia fuel leak prevention integrated system, characterized in that: include: A seawater desalination system comprises a wave energy pump and a seawater chamber (7), wherein external seawater is transported into the seawater chamber (7) by the wave energy pump and desalinated by high-temperature flue gas in a high-temperature flue gas pipe (8), and the desalinated water is stored in a water storage tank (10); An evaporation system comprises a vacuum low-temperature evaporator (11) and a storage tank (12), wherein the used ammonium nitrate solution is evaporated at low temperature in the vacuum low-temperature evaporator (11) through flue gas after heat exchange with seawater, and the ammonium nitrate particles and water produced after evaporation are stored in the storage tank (12) and the water storage tank (10) respectively; The spray system comprises a spray tower (21), a spray element and a stirring element. The flue gas heat exchanged in the vacuum low-temperature evaporator (11) is transported to the spray tower (21), and the water in the water storage tank (10) is sprayed into the spray tower (21) through the spray element to form an ammonium nitrate solution with the flue gas. The ammonium nitrate solution is transported to the vacuum low-temperature evaporator (11) during use.

2. The wave energy driven liquid ammonia fuel leak prevention integrated system according to claim 1, characterized in that: The wave energy pump comprises: A first housing is arranged on the sea surface, wherein a first valve (4) is installed on the first housing; A first piston (1) is slidably connected in the first housing via a first spring (2), and one end of the first spring (2) is fixedly connected to the top end of the first housing via a fixer (3); External seawater enters the first housing through the first valve (4), and the first piston (1) is driven upward by waves to compress the seawater, and the compressed seawater is transported to the seawater chamber (7) through the seawater pipe (5).

3. The wave energy driven liquid ammonia fuel leak prevention integrated system according to claim 1, characterized in that: One end of the high-temperature flue gas pipe (8) extends from the seawater chamber (7) and is connected to one end of the medium-temperature flue gas pipe (14); the other end of the medium-temperature flue gas pipe (14) passes through the vacuum low-temperature evaporator (11) and is connected to one end of the low-temperature flue gas pipe (15); the other end of the low-temperature flue gas pipe (15) extends into the spray tower (21).

4. The wave energy driven liquid ammonia fuel leak prevention integrated system according to claim 2, characterized in that: The spraying part comprises: A sprayer (20) is fixedly connected to the top of the spray tower (21); A second housing is arranged on the sea surface, and a second valve (18) is installed on the second housing; A second piston (16) is slidably connected in the second housing via a second spring (19), and one end of the second spring (19) is fixedly connected to the top end of the second housing; The water in the water storage tank (10) is transported to the second housing through a water pipe (17), and the second piston (16) is driven by waves to move upward to squeeze the water into the sprayer (20).

5. The wave energy driven liquid ammonia fuel leak prevention integrated system according to claim 1, characterized in that: The stirring member comprises: A rotating shaft (23) rotatably connected in the spray tower (21); A plurality of stirring blades (22) are fixedly connected to the rotating shaft (23) to promote the reaction between water and smoke; A guide blade (24) is fixedly connected to one end of the rotating shaft (23), and the guide blade (24) is rotated by wave energy.

6. The wave energy driven liquid ammonia fuel leak prevention integrated system according to claim 1, characterized in that: A plurality of fins (6) are fixedly connected to the outer wall of the high-temperature flue gas pipe (8).

7. The wave energy driven liquid ammonia fuel leak prevention integrated system according to claim 1, characterized in that: The spray tower (21) is connected to a liquid storage tank (25), the liquid storage tank (25) is connected to a control valve (26), and the liquid storage tank (25) stores ammonium nitrate solution.

8. The wave energy driven liquid ammonia fuel leak prevention integrated system according to claim 7, characterized in that: The vacuum low-temperature evaporator (11) is provided with an ammonium nitrate delivery pipe (13). The ammonium nitrate solution in the liquid storage tank (25) absorbs the heat of the liquid ammonia fuel and is heated to 20° C., and then is delivered to the vacuum low-temperature evaporator (11) through the ammonium nitrate delivery pipe (13).

9. The wave energy driven liquid ammonia fuel leak prevention integrated system according to claim 4, characterized in that: The first valve (4) comprises a first inlet (401) and a first outlet (402), and external seawater enters the first housing through the first inlet (401), and the first outlet (402) is connected to the seawater pipe (5); The second valve (18) comprises a second inlet (1801) and a second outlet (1802), wherein the second inlet (1801) is connected to the water pipe (17), and the second outlet (1802) is connected to the sprinkler (20).

10. The wave energy driven liquid ammonia fuel leak prevention integrated system according to claim 1, characterized in that: The high-temperature flue gas temperature is 400-500°C, the flue gas temperature after seawater desalination heat exchange is 70-80°C, and the flue gas temperature after heat exchange in the vacuum low-temperature evaporator (11) is 30-40°C.

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