Ammonia supply device for ammonia fuel supply system of ship
By designing an automatic switching direct supply system and an ammonia supply device of the pump supply system, the problems of liquid ammonia heating gasification and stable supply are solved, and the efficient utilization of ammonia and the smooth operation of the gas-using host are achieved.
Patent Information
- Application Number
- CN202421917623.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-08
AI Technical Summary
The prior art is difficult to efficiently heat and gasify liquid ammonia and provide stable supply to the ship's gas main engine, which has the problem of inconvenient pressure regulation of ammonia storage units.
An ammonia supply device including an ammonia storage unit, a supply power unit, a control unit and a gas supply unit is designed. The system pressure is adjusted to ensure the stability of the gas supply through automatic switching between the direct supply system and the pump supply system.
The stable supply of ammonia is achieved, which avoids excessive pressure of ammonia storage unit, improves operation convenience and utilization rate of ammonia, and ensures the smooth operation of the gas-using host.
Smart Images
Figure CN222879782U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of ship ammonia supply, and more specifically, relates to an ammonia supply device for a ship ammonia fuel supply system. Background Art
[0002] Ammonia has significant advantages as a fuel. It has high environmental benefits. Ammonia does not contain carbon molecules and does not produce carbon dioxide when burned in the engine, which can significantly reduce greenhouse gas emissions. In addition, ammonia sources are abundant and the preparation technology is mature. It can be produced and prepared using renewable energy sources such as wind and solar energy. The heat generated by the combustion of ammonia per unit volume is nearly 50% higher than that of hydrogen fuel. Ammonia fuel is widely used in the field of shipping. Ammonia can be stored in pressurized tanks at around 1MPa or in cryogenic tanks at around -34°C. It can help ocean-going ships improve the utilization of hull space while ensuring sufficient fuel.
[0003] The ammonia fuel used in ammonia fuel engines is stored in liquid form on ships to save ship fuel storage space, but how to efficiently heat liquid ammonia to gasify it to produce ammonia gas and stably supply the ammonia gas to the main engine at the pressure and temperature required by the main engine is a technical problem that needs to be solved urgently. Utility Model Content
[0004] The utility model aims at solving the technical problems existing in the prior art and provides an ammonia supply device for a ship ammonia fuel supply system.
[0005] In order to solve the above technical problems, the utility model includes an ammonia storage unit, a power supply unit, a control unit, and a gas supply unit for supplying gas to a gas-using main unit. The gas supply unit includes a direct supply system and a pump supply system. The gas supply unit is provided with a gas supply pipeline. The gas supply unit is connected with the ammonia storage unit and the power supply unit through the gas supply pipeline. A control valve is provided on the gas supply pipeline.
[0006] It also includes a pressure regulating unit, which is connected to the air supply unit, and a control unit controls the actions of the air supply unit and the pressure regulating unit.
[0007] Preferably, the gas supply unit is a selectively regulated gas supply mode, and the direct supply system and the pump supply system automatically switch the gas supply system to supply gas under the control of the control unit according to the pressure of the ammonia storage unit.
[0008] Preferably, the control unit receives the pressure of the ammonia storage unit, and when the pressure of the ammonia storage unit is greater than a set control value, the direct supply system is activated; when the pressure of the ammonia storage unit is less than the set control value, the pump supply system is activated.
[0009] Preferably, the pressure regulating unit includes a buffer tank and a pressure regulating valve. The pressure regulating valve is arranged at the inlet end of the buffer tank. The buffer tank is arranged on the gas supply pipeline connecting the ammonia storage unit and the gas-consuming main unit.
[0010] Preferably, the ammonia storage unit is provided with a gas supply valve and a reflux control valve.
[0011] Preferably, the power supply unit includes an ammonia pump and a reflux regulating valve, the reflux regulating valve is arranged on the air supply pipeline, the ammonia pump is provided with an exhaust valve, and the outlet of the ammonia storage unit is connected to the ammonia pump.
[0012] Preferably, the ammonia storage unit comprises an ammonia storage tank, and the liquid ammonia outlet of the ammonia storage unit is connected to an outlet valve.
[0013] Preferably, the control unit includes a control system and a main air supply control valve, the main air supply control valve is arranged on the air supply pipeline and is connected to the pressure regulating unit, and the control system is provided with a control panel.
[0014] Preferably, a heat exchange unit is connected to the gas supply pipeline.
[0015] Preferably, the ammonia storage unit is provided with two ammonia storage tanks, namely a first ammonia storage tank and a second ammonia storage tank, the outlet pipeline of the first ammonia storage tank is connected with a first ammonia pump, a first pump outlet valve and a first pressure regulating valve, and the outlet pipeline of the second ammonia storage tank is connected with a second ammonia pump, a second pump outlet valve and a second pressure regulating valve.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] The utility model has a simple structure and is easy to control. The gas supply unit and the pressure regulating unit cooperate to stably adjust the system pressure. After the gas supply starts, the gas supply mode is automatically switched according to the pressure of the ammonia storage unit under the control of the control unit, and the direct supply system or the pump supply system is automatically driven to operate, so as to avoid excessive pressure in the ammonia storage unit and improve the convenience of operation. Moreover, by automatically selecting the gas supply mode according to the system pressure, not only automatic gas supply is realized, but also the adjustment range is increased. While reducing the pressure of the ammonia storage unit, the utilization rate of ammonia is improved, the supply pressure and temperature of the gas supply pipeline are kept stable, and the smooth operation of the gas-using main engine is ensured. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0019] Figure 1 This is a schematic diagram of the connection structure of the utility model system Figure 1 ;
[0020] Figure 2 This is a schematic diagram of the connection structure of the utility model system Figure 2 ;
[0021] Figure 3 For this utility model Figure 2 A schematic diagram of the partially enlarged structure of the connection between the first ammonia storage tank and the power supply unit at A in the middle;
[0022] Figure 4 This is a partial enlarged structural diagram of the voltage regulating unit of the utility model;
[0023] Figure 5 This is a schematic diagram of the structure of the control panel of the utility model.
[0024] Explanation of symbols in the figure:
[0025] 1. Ammonia storage unit; 11. First ammonia storage tank; 12. Second ammonia storage tank; 13. First outlet valve; 14. First air supply valve; 15. Second outlet valve; 16. Second air supply valve; 17. First tank reflux control valve; 18. Second tank reflux control valve; 2. Supply power unit; 21. First ammonia pump; 22. Second ammonia pump; 23. First pump outlet valve; 24. Second pump outlet valve; 25. Reflux regulating valve; 3. Gas main unit; 31. First gas main unit; 32. Second gas main unit; 4. Gas supply unit; 41. Gas supply pipeline; 5. Pressure regulating unit; 51. Buffer tank; 52. First pressure regulating valve; 53. Second pressure regulating valve; 61. First gas supply main valve; 62. Second gas supply main valve; 7. Control panel; 8. Heat exchange unit; 81. Water glycol system; 82. Heat exchanger system; 9. Ammonia absorption tank. DETAILED DESCRIPTION
[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0027] See also Figure 1 The utility model provides an ammonia supply device for a ship ammonia fuel supply system, comprising an ammonia storage unit 1, a supply power unit 2, a control unit, and also comprising an air supply unit 4 for supplying air to a gas-using main engine 3, the air supply unit 4 comprising a direct supply system and a pump supply system, the air supply unit 4 is provided with an air supply pipeline 41, the air supply unit 4 is connected with the ammonia storage unit 1 and the supply power unit 2 through the air supply pipeline 41, and a control valve is provided on the air supply pipeline 41;
[0028] It also includes a pressure regulating unit 5, which is connected to the air supply unit 4, and a control unit controls the actions of the air supply unit 4 and the pressure regulating unit 5.
[0029] The utility model has a simple structure and is easy to control. The gas supply unit 4 cooperates with the pressure regulating unit 5 to stably adjust the system pressure. After the gas supply starts, the gas supply mode is automatically switched according to the pressure of the ammonia storage unit 1 under the control of the control unit, and the direct supply system or the pump supply system is automatically driven to operate, so as to avoid excessive pressure in the ammonia storage unit 1 and improve the convenience of operation. Moreover, by automatically selecting the gas supply mode according to the system pressure, not only automatic gas supply is realized, but also the adjustment range is increased. While reducing the pressure of the ammonia storage unit 1, the utilization rate of ammonia is improved, the supply pressure and temperature of the gas supply pipeline are kept stable, and the smooth operation of the gas-using main unit 3 is ensured.
[0030] In this embodiment, the ammonia storage unit 1 includes an ammonia storage tank. The liquid ammonia outlet of the ammonia storage unit 1 is connected to an outlet valve. The ammonia storage tank is a core component of the ship's ammonia gas supply system. Its main function is to store ammonia as fuel. During the operation of the ship, the gas supply unit 4 supplies gas to the gas-consuming main engine 3. Its performance plays an important role in ensuring stable gas supply.
[0031] Specifically, Figure 2 As shown, the ammonia storage unit 1 is provided with two ammonia storage tanks, namely a first ammonia storage tank 11 and a second ammonia storage tank 12, which are respectively used for the port side ammonia fuel supply and the starboard side ammonia fuel supply of the ship. There are two gas main engines 3, namely a first gas main engine 31 and a second gas main engine 32, which are respectively used for the fuel supply of the two gas main engines 3. The first ammonia storage tank 11 and the second ammonia storage tank 12 have the same structural arrangement, and the ammonia storage tanks are provided with liquid ammonia outlets and gas outlets.
[0032] like Figure 2 , Figure 3 As shown, a first outlet valve 13 is connected to the liquid ammonia outlet pipeline of the first ammonia storage tank 11, a first air supply valve 14 is connected to the upper end of the air outlet of the first ammonia storage tank 11, a second outlet valve 15 is connected to the liquid ammonia outlet pipeline of the second ammonia storage tank 12, and a second air supply valve 16 is connected to the upper end of the air outlet of the second ammonia storage tank 12; and a first tank reflux control valve 17 is connected to the first ammonia storage tank 11, and a second tank reflux control valve 18 is connected to the second ammonia storage tank 12. The tank reflux control valves are used to prevent liquid diversion, thereby protecting the pipeline system.
[0033] In this embodiment, the power supply unit 2 includes an ammonia pump. The liquid ammonia outlet of the ammonia storage tank is connected to the ammonia pump. The ammonia pump is provided with an exhaust valve and an ammonia pump outlet valve.
[0034] Specifically, there are two ammonia pumps in the system, namely a first ammonia pump 21 and a second ammonia pump 22. The two ammonia pumps serve two ammonia storage tanks respectively. The first ammonia pump 21 is connected to the first ammonia storage tank 11, and the second ammonia pump 22 is connected to the second ammonia storage tank 12. The first ammonia pump 11 is connected to a first exhaust valve and a first pump outlet valve 23, and the second ammonia pump is connected to a second exhaust valve and a second pump outlet valve 24.
[0035] Furthermore, in this embodiment, the power supply unit 2 further includes a reflux regulating valve 25 , and the reflux regulating valve 25 is disposed on the air supply pipeline 41 .
[0036] In this embodiment, Figure 2 , Figure 4 As shown, the pressure regulating unit 5 includes a buffer tank 51 and a pressure regulating valve, the buffer tank 51 is connected to the pressure regulating valve, and the pressure regulating valve is arranged at the inlet end of the buffer tank 51, and the buffer tank 51 is arranged on the gas supply pipeline connecting the ammonia storage tank and the gas-using main unit 3; the regulating valve includes a first pressure regulating valve 52 and a second pressure regulating valve 53, the first pressure regulating valve 52 and the second pressure regulating valve 53 are respectively used for regulating the gas pressure of the first gas-using main unit 31 and the second gas-using main unit 32, and the first pressure regulating valve 52 and the second pressure regulating valve 53 are both connected to the gas outlet pipeline end of the ammonia storage tank.
[0037] Furthermore, the gas supply unit 4 is connected to the gas outlet pipeline of the ammonia storage tank, and the direct supply system and the pump supply system provided in the gas supply unit 4 are selectable gas supply modes. The direct supply system and the pump supply system automatically switch the gas supply system for gas supply under the control of the control unit according to the pressure of the ammonia storage unit.
[0038] Specifically, the control unit receives the pressure of the ammonia storage tank. When the pressure of the ammonia storage tank is greater than the set control value, the direct supply system is activated; when the pressure of the ammonia storage tank is less than the set control value, the pump supply system is activated.
[0039] When the control unit receives the gas usage signal from the gas usage host 3, it determines the pressure in the ammonia storage tank. When the pressure in the ammonia storage tank is greater than 7Bar, the system automatically enters the direct gas supply mode from the storage tank. When the pressure in the ammonia storage tank is lower than 7Bar, the system automatically enters the ammonia pump gas supply mode.
[0040] In this embodiment, the control unit includes a control system and a gas supply main control valve. The control system is provided with a control panel 7 . The gas supply main control valve 6 is arranged on the gas supply pipeline and is connected to the pressure regulating unit 5 .
[0041] Specifically, the gas supply main control valve includes a first gas supply main valve 61 and a second gas supply main valve 62. The first gas supply main valve 61 and the second gas supply main valve 62 are respectively used for gas control of the first gas-using main machine 31 and the second gas-using main machine 32, and the first gas supply main valve 61 and the second gas supply main valve 62 are both arranged on the gas supply pipeline connected to the gas-using main machine 3 at the outlet end of the buffer tank 51.
[0042] Furthermore, in this implementation, if Figure 2 As shown, the gas supply pipeline 41 is also connected to a heat exchange unit 8, which is arranged between the rear end of the ammonia pump and the pressure regulating unit 5. The heat exchange unit 8 includes a water glycol system 81 and a heat exchanger system 82. The water glycol system 81 and the heat exchanger system 82 are connected. The system completes the heat exchange of ammonia fuel through the heat exchange unit 8. The water glycol system 81 includes a water glycol heat exchanger, two circulation pumps and an expansion water tank. The heat exchange system 82 includes two heat exchangers. The various devices are connected through connecting pipes and control valves. The water glycol system 81 serves as a heat exchange intermediate system, which can reduce the heat exchange temperature difference, reduce heat exchange losses, and efficiently complete the medium circulation heat exchange.
[0043] In this embodiment, the ammonia fuel processed by the heat exchange unit 8 enters the buffer tank 51 of the pressure regulating unit 5, and is then transported to the gas-consuming main unit 3 as needed under the control of the gas supply main control valve.
[0044] In this embodiment, the pressure regulating valves at the ammonia pump and the buffer tank inlet both use the buffer tank pressure and are adjusted according to the PID algorithm. The buffer tank is used to improve the stability of the gas supply and ensure the smooth operation of the main engine. After the gas supply starts, the control unit will automatically switch the gas supply mode according to the pressure of the ammonia storage tank, avoiding excessive tank pressure, reducing the labor intensity and skill level requirements of the crew, and improving the convenience of operation.
[0045] As can be seen from the above, in the present invention, the gas supply mode of the ammonia fuel supply system is divided into two modes: the direct gas supply mode of the storage tank and the gas supply mode of the ammonia pump. Figure 5 As shown, when the system is working, through the control panel 7 of the control unit, according to the needs of the gas-consuming host, in the "Start Sequence" interface, click the first ammonia storage tank or the second ammonia storage tank button, select the gas supply tank, select the pressure regulating valve and the ammonia pump, click the start button, the system will automatically check whether the water glycol system, the fuel preparation room ventilation system, the double-walled pipe ventilation system, nitrogen, and compressed air are ready. If not, the system will automatically start the corresponding system. After all the auxiliary systems are ready, the system automatically opens the outlet valve of the selected ammonia storage tank and the exhaust valve of the ammonia pump. After the exhaust is completed, the automatic gas supply preparation is completed, waiting for the gas consumption signal of the gas-consuming host. The system realizes intelligent and automatic control of the gas consumption of the gas-consuming host.
[0046] Specifically, when the control unit receives the gas use signal from the host, it automatically selects to enter the direct gas supply mode or the ammonia pump gas supply mode according to the pressure of the ammonia storage tank. When the system chooses to enter the direct gas supply mode, it opens the gas supply valve on the top of the ammonia storage tank and the pressure regulating valve at the inlet of the buffer tank in turn. When the pressure and temperature of the buffer tank meet the gas supply conditions, it opens the gas supply valve of the corresponding gas-using host, sends a gas supply in place signal, and starts gas supply. During the gas supply process, when the control unit detects that the pressure of the ammonia storage tank is lower than 5Bar, the system automatically enters the ammonia pump gas supply mode.
[0047] When the system enters the ammonia pump gas supply mode, the reflux regulating valve, the storage tank reflux valve, the pressure regulating valve at the inlet of the buffer tank and the ammonia pump are opened in sequence. The ammonia pump automatically adjusts the frequency according to the buffer tank pressure using the PID algorithm to keep the buffer tank pressure within the set value range. When the ammonia pump frequency is reduced to the minimum value, if the buffer tank pressure is still greater than the set value, the buffer tank inlet pressure regulating valve will use the PID algorithm to adjust the valve opening degree according to the buffer tank pressure. When the pressure regulating valve opening degree reaches 80% and the buffer tank pressure is still lower than the set value, the ammonia pump is used for adjustment. When the buffer tank pressure and temperature meet the gas supply conditions, open the gas supply valve of the corresponding gas user host, send a gas supply in place signal, and start gas supply. During the gas supply process, when the control unit detects that the ammonia storage tank pressure is greater than 10Bar, the system automatically enters the tank direct gas supply mode.
[0048] Furthermore, when the gas-using main unit sends a gas stop signal, the system automatically closes the corresponding gas supply main valve and stops sending the corresponding gas ready signal. If the other gas-using main unit is not using ammonia at this time, the system executes the automatic shutdown process.
[0049] In this embodiment, during the system startup process, if any step fails, the corresponding icon on the control panel interface of the control unit will turn red, the system will issue a corresponding alarm, and the automatic gas supply mode will stop. After clicking the "Confirm / Reset" button, the system will execute the automatic shutdown process.
[0050] Moreover, when the system automatically supplies gas, if the first gas supply main valve 61 and the second gas supply main valve 62 are all closed, the first ammonia pump 21 and the second ammonia pump 22 in the ammonia pump gas supply mode are all closed, the first outlet valve 13 and the second outlet valve 15 of the ammonia storage tank are all closed, and the first pump outlet valve 13 or the second pump outlet valve 15 corresponding to the running pump in the ammonia pump gas supply mode is closed, the system will execute the automatic shutdown process.
[0051] When the system executes the automatic shutdown process, the ammonia pump will be automatically shut down. After the ammonia pump shutdown command is issued, all valves opened in the automatic gas supply mode will be closed after a delay of 20s.
[0052] Furthermore, Figure 1As shown, the system of this embodiment is also provided with an ammonia absorption tank 9 and a recovery tank for recovering liquid ammonia, thereby effectively performing the ammonia leakage protection function of the system during the ammonia fuel supply process.
[0053] The utility model has a simple structure and is easy to control. After the gas supply starts, the control unit will automatically switch the gas supply mode according to the pressure of the ammonia storage tank, thereby avoiding excessive pressure in the storage tank, reducing the labor intensity and skill level requirements of the crew, and improving the convenience of operation. When the pressure of the ammonia storage tank is high, the direct gas supply mode of the storage tank is adopted, and the pressure in the ammonia storage tank is used to supply the gas to the main engine. While consuming the evaporated gas in the ammonia storage tank and reducing the pressure of the ammonia storage tank, the evaporated gas is fully utilized, the utilization rate of ammonia is improved, and the environmental pollution caused by ammonia emissions is avoided. The ammonia pump direct gas supply mode is adopted, and the step-type pressure regulation of the pressure regulating valve at the inlet of the ammonia pump and the buffer tank is adopted to increase the adjustment range. In combination with the reflux valve, it can meet all gas supply needs of the gas-using main engine load from 0-100%.
[0054] The gas supply unit of the utility model cooperates with the pressure regulating unit to stably regulate the system pressure, and after the gas supply starts, the gas supply mode is automatically switched according to the pressure of the ammonia storage unit under the control of the control unit, and the direct supply system or the pump supply system is automatically driven to operate, so as to avoid excessive pressure in the ammonia storage unit and improve the convenience of operation; and by automatically selecting the gas supply mode according to the system pressure, not only automatic gas supply is realized, but also the regulation range is increased, and while reducing the pressure of the ammonia storage unit, the utilization rate of ammonia is improved, the supply pressure and temperature of the gas supply pipeline are kept stable, and the smooth operation of the gas-using main machine is ensured.
[0055] In the description of the present invention, it should be understood that terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0056] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0057] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. An ammonia supply device for a ship ammonia fuel supply system, comprising an ammonia storage unit, a supply power unit, and a control unit, characterized in that: It also includes a gas supply unit for supplying gas to the gas-using main unit, the gas supply unit includes a direct supply system and a pump supply system, the gas supply unit is provided with a gas supply pipeline, the gas supply unit is connected with the ammonia storage unit and the power supply unit through the gas supply pipeline, and a control valve is provided on the gas supply pipeline; It also includes a pressure regulating unit, which is connected to the air supply unit, and the control unit controls the actions of the air supply unit and the pressure regulating unit.
2. The ammonia supply device for a ship ammonia fuel supply system according to claim 1, characterized in that: The gas supply unit is a selectively regulated gas supply mode, and the direct supply system and the pump supply system automatically switch the gas supply system to supply gas under the control of the control unit according to the pressure of the ammonia storage unit.
3. The ammonia supply device for a ship ammonia fuel supply system according to claim 2, characterized in that: The control unit receives the pressure of the ammonia storage unit. When the pressure of the ammonia storage unit is greater than a set control value, the direct supply system is activated; when the pressure of the ammonia storage unit is less than the set control value, the pump supply system is activated.
4. The ammonia supply device for a ship ammonia fuel supply system according to claim 2, characterized in that: The pressure regulating unit comprises a buffer tank and a pressure regulating valve. The pressure regulating valve is arranged at the inlet end of the buffer tank. The buffer tank is arranged on a gas supply pipeline connecting the ammonia storage unit and the gas-consuming main unit.
5. The ammonia supply device for a ship ammonia fuel supply system according to claim 4, characterized in that: The ammonia storage unit is provided with a gas supply valve and a reflux control valve.
6. The ammonia supply device for a ship ammonia fuel supply system according to claim 2, characterized in that: The power supply unit comprises an ammonia pump and a reflux regulating valve, the reflux regulating valve is arranged on the air supply pipeline, the ammonia pump is provided with an exhaust valve, and the outlet of the ammonia storage unit is connected to the ammonia pump.
7. The ammonia supply device for a ship ammonia fuel supply system according to claim 1, characterized in that: The ammonia storage unit comprises an ammonia storage tank, and a liquid ammonia outlet of the ammonia storage unit is connected with an outlet valve.
8. The ammonia supply device for a ship ammonia fuel supply system according to claim 1, characterized in that: The control unit includes a control system and a gas supply main control valve. The gas supply main control valve is arranged on the gas supply pipeline and is connected to the pressure regulating unit. The control system is provided with a control panel.
9. The ammonia supply device for a ship ammonia fuel supply system according to claim 1, characterized in that: The air supply pipeline is connected with a heat exchange unit.
10. An ammonia supply device for a ship ammonia fuel supply system according to any one of claims 1 to 9, characterized in that: The ammonia storage unit is provided with two ammonia storage tanks, namely a first ammonia storage tank and a second ammonia storage tank. The outlet pipeline of the first ammonia storage tank is connected with a first ammonia pump, a first pump outlet valve and a first pressure regulating valve. The outlet pipeline of the second ammonia storage tank is connected with a second ammonia pump, a second pump outlet valve and a second pressure regulating valve.