Safety system and method for ammonia fuel equipment room and ship

Abstract

The invention discloses a safety system and method for an ammonia fuel equipment room and a ship, and the safety system comprises a detection assembly which comprises an ammonia gas detection probe, a fire detection probe and a negative pressure detection sensor and is used for detecting the safety conditions in the ammonia fuel equipment room, and the safety conditions comprise the ammonia gas concentration, the smoke concentration and the pressure; the alarm assembly comprises an automatic alarm part and a manual alarm part; the spray head assembly comprises a plurality of spray heads; the control assembly comprises an intelligent full-stack type controller, a spray head control terminal, a start-stop control terminal and a negative pressure elimination control terminal, the intelligent full-stack type controller is electrically connected with the spray head control terminal, the start-stop control terminal, the negative pressure elimination control terminal, the detection assembly and the alarm assembly, and the spray head control terminal is electrically connected with the spray head assembly; the safety guarantee assembly comprises a reset device, and the reset device is electrically connected with the intelligent full-stack type controller. According to the invention, systematic safety measures can be comprehensively enhanced, and higher-level safety guarantee is provided.

Description

Technical Field

[0001] The present application relates to the field of ship technology, and in particular to a safety system, method and ship for an ammonia fuel equipment room. Background Art

[0002] As the research and development of marine ammonia fuel diesel engine technology continues to make breakthroughs, it is expected that more new shipbuilding or existing ship modification projects will use ammonia fuel as a power source in the future. This trend will help the shipping industry achieve its emission reduction goals and promote the industry's transition to cleaner and more environmentally friendly energy solutions.

[0003] Given the high toxicity of ammonia, ensuring the safety of personnel on ammonia-fueled ships is of vital importance. Although the current regulations have emphasized the importance of personal safety protective equipment, such as respirators, the requirements for systematic safety measures are not comprehensive enough. In order to improve the safety of crew members during operations, it is particularly important to install a more reliable safety system. Summary of the invention

[0004] In view of this, the main purpose of this application is to provide a safety system, method and ship for an ammonia fuel equipment room, so as to achieve the purpose of comprehensively enhancing systematic safety measures and providing a higher level of safety protection.

[0005] In a first aspect, the present application provides a safety system for an ammonia fuel equipment room, comprising:

[0006] A detection component, which includes an ammonia gas detection probe, a fire detection probe and a negative pressure detection sensor to detect the safety conditions inside the ammonia fuel equipment room, including ammonia concentration, smoke concentration and pressure;

[0007] An alarm component, which includes an automatic alarm component and a manual alarm component;

[0008] A nozzle assembly, which includes a plurality of nozzles;

[0009] A control component, comprising an intelligent full-stack controller, a nozzle control terminal, a start-stop control terminal and a negative pressure elimination control terminal, wherein the intelligent full-stack controller is electrically connected to the nozzle control terminal, the start-stop control terminal, the negative pressure elimination control terminal, the detection component and the alarm component respectively, and the nozzle control terminal is electrically connected to the nozzle component;

[0010] The safety assurance component includes a reset device, which is electrically connected to the intelligent full-stack controller.

[0011] From the above, after the intelligent full-stack controller is started through the start-stop control terminal, the intelligent full-stack controller checks that the detection components, alarm components, etc. are working normally. The detection components will transmit the ammonia concentration, smoke concentration and pressure detected in the ammonia fuel equipment room to the intelligent full-stack controller. The intelligent full-stack controller determines its operating mode by analyzing the sensor signal and manual input signal (manual triggering of the safety assurance component), and adjusts the working status of the alarm component, nozzle control terminal and negative pressure elimination control terminal to provide timely and effective safety protection.

[0012] Optionally, the multiple nozzles include multiple isolated water curtain nozzles and multiple water spray nozzles.

[0013] Optionally, the nozzle control terminal includes a water curtain nozzle control terminal and a water sprinkler nozzle control terminal.

[0014] Optionally, the nozzle control terminal is electrically connected to the nozzle assembly, and further includes: a water curtain nozzle control terminal is electrically connected to the isolation water curtain nozzle; and a water spray nozzle control terminal is electrically connected to the water spray nozzle.

[0015] From the above, the intelligent full-stack controller controls whether to trigger the water curtain nozzle control terminal and the water sprinkler nozzle control terminal according to the analyzed sensor signals. In case of fire or ammonia leakage, the water curtain nozzle control terminal and the water sprinkler nozzle control terminal are controlled separately to improve safety and processing efficiency.

[0016] Optionally, isolation water curtain nozzles are arranged at the entrance and exit and the vent of the ammonia fuel equipment room, and a plurality of water spray nozzles are evenly arranged inside the ammonia fuel equipment room.

[0017] As shown above, the isolation water curtain nozzles are set at the entrances and exits and vents of the ammonia fuel equipment room to prevent ammonia from overflowing; the water spray nozzles are evenly arranged inside the ammonia fuel equipment room to effectively absorb ammonia and extinguish fires.

[0018] Optionally, the negative pressure elimination control terminal is electrically connected to the ventilation component of the ammonia fuel equipment room to adjust the pressure inside the ammonia fuel equipment room.

[0019] As mentioned above, the intelligent full-stack controller automatically activates the negative pressure elimination control terminal according to the negative pressure exceeding standard signal provided by the negative pressure detection sensor. The negative pressure elimination control terminal increases the inflow of external fresh air or reduces the discharge of indoor air by controlling the ventilation components until a safe positive pressure state is reached, ensuring that the cabin door is easy to open and facilitating the evacuation of personnel to the outdoors. At the same time, during the pressure adjustment process, the negative pressure detection sensor continues to monitor the pressure changes in the ammonia fuel preparation room and sends real-time data to the intelligent full-stack controller.

[0020] Optionally, the automatic alarm component includes an alarm escape guide light strip and an audible and visual alarm device, which is used to automatically trigger the intelligent full-stack controller through the detection component.

[0021] From the above, when the detection component detects that the ammonia concentration or smoke concentration in the safety condition in the ammonia fuel preparation room exceeds a certain concentration, the intelligent full-stack controller analyzes the signal from the detection component, and after confirmation, the intelligent full-stack controller automatically triggers the alarm escape guide light strip and the sound and light alarm device to remind and guide personnel to evacuate.

[0022] Optionally, the manual alarm component includes a fire alarm button, which is used to trigger the alarm escape guide light strip and the sound and light alarm device by the intelligent full-stack controller after manual triggering.

[0023] As described above, when personnel discover ammonia leakage or fire, but the detection component does not detect it, by manually triggering the fire alarm button, the intelligent full-stack controller triggers the alarm escape guide light strip and the sound and light alarm device according to the alarm signal of the fire alarm button, to remind and guide personnel to evacuate, thereby providing a backup safety measure.

[0024] In a second aspect, the present application provides a safety method for an ammonia fuel equipment room, which uses any of the safety systems for an ammonia fuel equipment room described above, including:

[0025] Trigger the intelligent full-stack controller through the start-stop control terminal;

[0026] The safety assurance component is manually triggered at scheduled intervals, and the intelligent full-stack controller determines the safety of personnel;

[0027] According to the safety status in the ammonia fuel equipment room detected by the detection component, the intelligent full-stack controller triggers the alarm component, the nozzle control terminal and the negative pressure elimination control terminal;

[0028] According to the control instructions of the intelligent full-stack controller, the nozzle control terminal triggers the nozzle assembly, the negative pressure elimination control terminal triggers the ventilation assembly, the nozzle assembly and the ventilation assembly adjust the safety status in the ammonia fuel equipment room and notify personnel to evacuate.

[0029] In a third aspect, the present application provides a ship, comprising a hull and a safety system between any one of the ammonia fuel equipments described above and arranged on the hull.

[0030] In summary, the safety system, method and ship of the ammonia fuel equipment room provided by the present application integrate multiple functions such as alarm escape guide light strip, sound and light alarm device, ammonia gas detection probe, water curtain nozzle control terminal, water sprinkler nozzle control terminal, start and stop control terminal, negative pressure elimination control terminal, reset device, fire detection probe, fire alarm button and negative pressure detection sensor through an intelligent full-stack controller, and control and isolate water curtain nozzles and water sprinkler nozzles respectively through the water curtain nozzle control terminal and the water sprinkler nozzle control terminal; when personnel are working normally, the intelligent full-stack controller determines the safety of personnel through the reset device; The intelligent full-stack controller automatically or passively triggers the alarm escape guide light strip and sound and light alarm device through ammonia gas detection probes, fire detection probes and fire alarm buttons to remind and guide personnel to evacuate to a safe area; the intelligent full-stack controller ensures the pressure safety in the ammonia fuel preparation room through the negative pressure elimination control terminal; the intelligent full-stack controller can automatically or manually switch to the corresponding operating mode (start-up mode, working mode, fire mode, ammonia leakage mode and shutdown mode) according to real-time monitoring data and manual needs of personnel, so that the safety system can flexibly adapt to different working environments and provide timely and effective safety protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The various technical features of the present application and the relationship between them are further explained below with reference to the accompanying drawings. The accompanying drawings are exemplary, and some technical features are not shown in actual proportion. In addition, some drawings may omit technical features that are commonly used in the technical field to which the present application belongs and are not essential for understanding and implementing the present application, or additional technical features that are not essential for understanding and implementing the present application may be shown. In other words, the combination of the various technical features shown in the accompanying drawings is not used to limit the present application. In addition, throughout the present application, the same figure numbers refer to the same content. The specific description of the drawings is as follows:

[0032] Figure 1 It is a structural diagram of a safety system for an ammonia fuel equipment room in this application.

[0033] Description of Reference Numerals

[0034] 1-intelligent full-stack controller, 2-alarm escape guide light strip, 3-sound and light alarm device, 4-isolation water curtain nozzle, 5-ammonia gas detection probe, 6-water sprinkler nozzle, 7-water curtain nozzle control terminal, 8-water sprinkler nozzle control terminal, 9-start and stop control terminal, 10-negative pressure elimination control terminal, 11-reset device, 12-fire detection probe, 13-fire alarm button, 14-negative pressure detection sensor.

[0035] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present application are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present application can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present application.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0039] In response to the greenhouse gas reduction strategy of the International Maritime Organization, shipowners are increasingly inclined to choose low-carbon and carbon-free fuels. In particular, ammonia fuel, due to its chemical composition, does not contain carbon and is seen as a carbon-free energy option. In recent years, many shipowners have begun to consider the compatibility of ammonia fuel when building new ships and choose to build ammonia fuel-ready ships.

[0040] Ammonia fuel ships usually have several dedicated compartments for storing ammonia fuel bunkering and handling equipment and valves. These equipment require routine and emergency operation and maintenance when using ammonia fuel. Given that ammonia fuel may leak under certain circumstances and is toxic, ensuring that operators can evacuate quickly in an emergency is a key measure to ensure their safety.

[0041] Therefore, in ship design, considering the potential diffusion risk of ammonia fuel, an independent gas detection system is usually equipped. Before entering the relevant cabin, it is necessary to confirm with the duty personnel whether the ammonia concentration is within the safe range. Only when it is confirmed to be safe can personnel enter. If a leak occurs during use, the duty personnel should immediately notify all personnel to evacuate through the broadcasting system. However, many operations in this process still require manual intervention, such as eliminating the negative pressure in the cabin to open the hatch, etc., which may increase the risk in emergency evacuation. In order to improve safety, it is possible to consider introducing automated systems to reduce human intervention, such as automatic negative pressure elimination control devices and more advanced gas leak response mechanisms to ensure quick and safe evacuation in an emergency.

[0042] This application adopts an integrated intelligent design to provide a safety system for ammonia fuel equipment room, which can monitor and warn personnel of possible emergencies in real time, automatically and quickly guide operators to evacuate safely or issue rescue notices in time, significantly reducing the unpredictable risks faced by operators. The safety system is divided into five operating modes, which fully covers all aspects of the staff from entering the ammonia fuel equipment area to safe evacuation. Through intelligent management, it reduces the dependence on on-duty personnel, realizes fast and reliable safety warnings and evacuation guidance, and effectively shortens the time required for emergency evacuation.

[0043] After the safety system is started, it will automatically perform a series of safety checks, including ammonia detection, fire warning, room negative pressure elimination and reset function activation. Only after ensuring the safety of the environment can personnel enter the room to work. During work, if the reset operation is not performed within the specified time, the safety system will automatically issue an alarm to the on-duty personnel, prompting them to pay attention to the safety conditions in the room. Once an ammonia fuel leak is detected, the gas detection system will immediately issue a real-time alarm, and the sound and light alarm device in the room will be activated to remind personnel to evacuate quickly. At the same time, the safety system will automatically start the negative pressure elimination program and light up the indicator lights on the evacuation route to provide personnel with a clear evacuation path. Through these systematic function settings, it is designed to provide operators with a full range of safety protection to ensure that they can evacuate quickly and orderly in an emergency.

[0044] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The specific embodiments described below can be combined with each other to form new embodiments. The same or similar ideas or processes described in one embodiment may not be repeated in other embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0045] On the one hand, the present application provides a safety system for an ammonia fuel equipment room, comprising:

[0046] A detection component, which includes an ammonia gas detection probe, a fire detection probe and a negative pressure detection sensor to detect the safety conditions inside the ammonia fuel equipment room, including ammonia concentration, smoke concentration and pressure;

[0047] An alarm component, which includes an automatic alarm component and a manual alarm component;

[0048] A nozzle assembly, which includes a plurality of nozzles;

[0049] A control component, comprising an intelligent full-stack controller, a nozzle control terminal, a start-stop control terminal and a negative pressure elimination control terminal, wherein the intelligent full-stack controller is electrically connected to the nozzle control terminal, the start-stop control terminal, the negative pressure elimination control terminal, the detection component and the alarm component respectively, and the nozzle control terminal is electrically connected to the nozzle component;

[0050] The safety assurance component includes a reset device, which is electrically connected to the intelligent full-stack controller.

[0051] Specifically, after the intelligent full-stack controller is started through the start-stop control terminal, the intelligent full-stack controller checks that the detection components, alarm components, etc. are working normally. The detection components will transmit the ammonia concentration, smoke concentration and pressure detected in the ammonia fuel equipment room to the intelligent full-stack controller. The intelligent full-stack controller determines its operating mode by analyzing the sensor signals and manual input signals (manual triggering of the safety assurance component), and adjusts the working status of the alarm component, nozzle control terminal and negative pressure elimination control terminal to provide timely and effective safety assurance.

[0052] Optionally, the multiple nozzles include multiple isolated water curtain nozzles and multiple water spray nozzles.

[0053] Optionally, the nozzle control terminal includes a water curtain nozzle control terminal and a water sprinkler nozzle control terminal.

[0054] Optionally, the nozzle control terminal is electrically connected to the nozzle assembly, and further includes: a water curtain nozzle control terminal is electrically connected to the isolation water curtain nozzle; and a water spray nozzle control terminal is electrically connected to the water spray nozzle.

[0055] Specifically, the intelligent full-stack controller controls whether to trigger the water curtain nozzle control terminal and the water sprinkler nozzle control terminal according to the analyzed sensor signals. In case of fire or ammonia leakage, the water curtain nozzle control terminal and the water sprinkler nozzle control terminal are controlled separately to improve safety and processing efficiency.

[0056] Optionally, isolation water curtain nozzles are arranged at the entrance and exit and the vent of the ammonia fuel equipment room, and a plurality of water spray nozzles are evenly arranged inside the ammonia fuel equipment room.

[0057] Specifically, the isolation water curtain nozzles are arranged at the entrances and exits and vents of the ammonia fuel equipment room to prevent ammonia from overflowing; the water spray nozzles are evenly arranged inside the ammonia fuel equipment room to effectively absorb ammonia and extinguish fires.

[0058] Optionally, the negative pressure elimination control terminal is electrically connected to the ventilation component of the ammonia fuel equipment room to adjust the pressure inside the ammonia fuel equipment room.

[0059] Specifically, the intelligent full-stack controller automatically activates the negative pressure elimination control terminal based on the negative pressure exceeding standard signal provided by the negative pressure detection sensor. The negative pressure elimination control terminal increases the inflow of external fresh air or reduces the exhaust of indoor air by controlling the ventilation components until a safe positive pressure state is reached, ensuring that the cabin door is easy to open and helping to exhaust toxic gases to the outside. At the same time, during the pressure adjustment process, the negative pressure detection sensor continues to monitor the pressure changes in the ammonia fuel preparation room and sends real-time data to the intelligent full-stack controller.

[0060] Optionally, the automatic alarm component includes an alarm escape guide light strip and an audible and visual alarm device, which is used to automatically trigger the intelligent full-stack controller through the detection component.

[0061] Specifically, when the detection component detects that the ammonia concentration or smoke concentration in the safety condition in the ammonia fuel preparation room exceeds a certain concentration, the intelligent full-stack controller analyzes the signal from the detection component. After confirmation, the intelligent full-stack controller automatically triggers the alarm escape guide light strip and sound and light alarm device to remind and guide personnel to evacuate.

[0062] Optionally, the manual alarm component includes a fire alarm button, which is used to trigger the alarm escape guide light strip and the sound and light alarm device by the intelligent full-stack controller after manual triggering.

[0063] Specifically, when personnel discover ammonia leakage or fire, but the detection component fails to detect it, the fire alarm button is manually triggered. The intelligent full-stack controller triggers the alarm escape guide light strip and the sound and light alarm device according to the alarm signal of the fire alarm button to remind and guide personnel to evacuate, thereby providing a backup safety measure.

[0064] The following is for Figure 1 The safety system of the ammonia fuel equipment room proposed in this application is described in detail.

[0065] like Figure 1As shown, the safety system includes an intelligent full-stack controller 1, an alarm escape guide light strip 2, an audible and visual alarm device 3, an isolation water curtain nozzle 4, an ammonia gas detection probe 5, a water sprinkler nozzle 6, a water curtain nozzle control terminal 7, a water sprinkler nozzle control terminal 8, a start and stop control terminal 9, a negative pressure elimination control terminal 10, a reset device 11, a fire detection probe 12, a fire alarm button 13 and a negative pressure detection sensor 14.

[0066] Among them, the water curtain nozzle control terminal 7, the water sprinkler nozzle control terminal 8, the start and stop control terminal 9 and the negative pressure elimination control terminal 10 can be set outside the room of the ammonia fuel equipment room. The four control terminals can adopt a combined control box, which has the advantages of high integration and easy operation.

[0067] The reset device 11 can use motion sensing sensors to complete the detection of personnel safety. Its advantage is that the reset operation can be completed without the personnel leaving the work position. The reset device 11 is an important part of the safety system of the ammonia fuel equipment room. Its main function is to ensure the safety of operators during work and provide a mechanism to regularly confirm their status. Therefore, in order to cover the entire working area, the reset device 11 needs to be installed at different positions inside the room of the ammonia fuel equipment room, and the installation position must be clearly visible.

[0068] When the operator enters the ammonia fuel equipment room and starts working, the operator needs to press the reset device 11 nearby every T minutes. At the same time, the reset device 11 sends a signal to the intelligent full-stack controller 1, indicating that the operator is still working safely and has not encountered any emergency. In this way, the safety system can continuously monitor the status of the operator.

[0069] If the operator fails to perform a reset operation within the specified T minutes, the intelligent full-stack controller 1 will automatically trigger a safety alarm, and the safety system will immediately notify the on-duty personnel so that necessary manual intervention measures can be taken quickly to deal with potential safety issues.

[0070] The intelligent full-stack controller 1 can be set outside the room of the ammonia fuel equipment room; the sound and light alarm device 3, the isolation water curtain nozzle 4, the ammonia gas detection probe 5, the water sprinkler nozzle 6, the reset device 11, the fire detection probe 12, the fire alarm button 13 and the negative pressure detection sensor 14 must be set inside the room of the ammonia fuel equipment room.

[0071] The intelligent full-stack controller 1 is the core component of the safety system, which is responsible for monitoring and coordinating all safety functions. Specifically, the intelligent full-stack controller 1 intelligently adjusts the working status of each control terminal (such as the isolation water curtain nozzle control terminal 7, the water sprinkler nozzle control terminal 8, etc.) by analyzing the signals from various sensors (such as ammonia gas detection probe 5, fire detection probe 12, etc.) and the manual input signals of the operator to ensure the safety warning, guidance and protection of the operator. The intelligent full-stack controller 1 can automatically switch different operating modes according to the real-time situation, such as startup mode, working mode, fire mode, ammonia leakage mode and shutdown mode, and implement corresponding safety measures.

[0072] The alarm escape guide light strip 2 is mainly set up around the external corridor of the ammonia fuel equipment room; in addition, the alarm escape guide light strip 2 should also be installed at the entrance and exit of the ammonia fuel equipment room, along the main passage leading to the safe exit, near important work areas such as the ammonia fuel equipment concentration area, at the corners of the external corridor and at the intersection of multiple passages to ensure that clear escape route instructions can be provided to the operators.

[0073] The sound and light alarm device 3 can integrate multifunctional alarms such as ammonia leakage, water spray release and fire detection to ensure that it can issue an alarm in time in various emergency situations.

[0074] The fire alarm button 13 is used to manually trigger the fire alarm. The sound and light alarm device 3 may fail to detect the fire in time due to various reasons (such as sensor failure, smoke or flame being blocked, etc.). Therefore, the fire alarm button 13 allows the staff to manually trigger the alarm, thereby providing a backup safety measure; at the same time, in some cases, the operator may find signs of fire earlier than the safety system, such as the operator may smell the smell of burning or see the initial smoke. At this time, the use of the fire alarm button 13 can immediately notify other personnel and activate the corresponding emergency measures without waiting for the response time of the safety system.

[0075] When ammonia leaks in the ammonia fuel equipment room, the isolation water curtain nozzle 4 quickly forms a water curtain to isolate and dilute the leaked ammonia to reduce the harm to the operators. The isolation water curtain nozzle 4 is usually set above or around each entrance and exit of the ammonia fuel equipment room, near the vents, near the important equipment that stores or uses ammonia fuel, and near the location of ammonia fuel pipelines, valves and other connecting parts. The isolation water curtain nozzle 4 should be able to cover the critical path of the entire ammonia fuel equipment room and work closely with the ammonia gas detection probe 5; when an ammonia leak is detected, the intelligent full-stack controller 1 sends a command to the water curtain nozzle control terminal 7 to start the isolation water curtain nozzle 4 to form a water curtain to isolate and dilute the ammonia and reduce the harm.

[0076] The ammonia gas detection probe 5 monitors the ammonia concentration in the ammonia fuel equipment room in real time. Once an ammonia leakage is detected, the ammonia gas detection probe 5 immediately sends a signal to the intelligent full-stack controller 1. The intelligent full-stack controller 1 receives and analyzes the signal from the ammonia gas detection probe 5. After confirming the existence of an ammonia leakage, it automatically switches to the ammonia leakage mode. At the same time, the intelligent full-stack controller 1 triggers the sound and light alarm device 3, and sends out an obvious sound and light signal to warn the operator and surrounding personnel of the occurrence of ammonia leakage. At the same time, the intelligent full-stack controller 1 activates the alarm escape guide light strip 2 to a flashing state, providing the operator with clear instructions for emergency evacuation.

[0077] The fire detection probe 12 is used to detect early signs of fire. When a fire or ammonia leakage occurs, the water sprinkler nozzle control terminal 8 is activated by the intelligent full-stack controller 1 to control the water sprinkler nozzle 6 to open, effectively controlling the fire or ammonia adsorption in the ammonia fuel equipment room and reducing personal injury.

[0078] The start-stop control terminal 9 allows the operator to manually start or stop the safety system to deal with different emergency situations. The intelligent full-stack controller 1 will decide whether to turn on the various functions of the safety system according to the state of the start-stop control terminal 9. The start-stop control terminal 9 is generally provided as a switch or button, allowing the operator to manually activate or shut down the safety system, thereby enhancing the flexibility and practicality of the safety system.

[0079] The negative pressure elimination control terminal 10 is mainly used to adjust the pressure in the ammonia fuel equipment room to ensure that personnel can evacuate safely in an emergency. When a negative pressure state occurs in the room, this may hinder the opening of the door or cause harmful gases to be difficult to discharge, thereby affecting the safe evacuation of personnel. The negative pressure detection sensor 14 installed in the ammonia fuel equipment room continuously monitors the pressure state inside the room. If the pressure inside the room is detected to be lower than the set safety threshold, that is, there is a negative pressure situation, the information will be transmitted to the intelligent full-stack controller 1. After the intelligent full-stack controller 1 receives the signal of excessive negative pressure, it automatically activates the negative pressure elimination control terminal 10, and the negative pressure elimination control terminal 10 is usually connected to the ventilation system to balance the pressure difference inside and outside the room by adjusting the air circulation in the ammonia fuel equipment room. Specifically, the negative pressure elimination control terminal 10 will increase the inflow of fresh air from the outside or reduce the discharge of indoor air until a safe positive pressure state is reached, which can not only ensure that the door is easy to open, but also help to discharge toxic gases outdoors.

[0080] exist Figure 1In a specific embodiment shown in the figure, a plurality of sub-areas are arranged inside the ammonia fuel equipment room, at least twelve water spray nozzles 6 are evenly arranged above the inside of the ammonia fuel equipment room, and are distributed in three rows and four columns. The coverage of the water spray nozzles 6 covers the entire ammonia fuel equipment room and also covers a plurality of sub-areas therein, at least three ammonia gas detection probes 5 and at least two fire detection probes 12 are arranged inside the ammonia fuel equipment room, sound and light alarm devices 3 are arranged on both sides of the inside of the ammonia fuel equipment room, and reset devices 11 are arranged at multiple locations inside the ammonia fuel equipment room, at least one of which is arranged at the entrance and exit of the ammonia fuel equipment room, and at least one of which is arranged at the entrance and exit of the ammonia fuel equipment room. At least three are set up inside the equipment room. An alarm escape guide light strip 2 is set around the inside of the ammonia fuel equipment room. The LED light strip arrows of the alarm escape guide light strip 2 point to the two entrances and exits of the ammonia fuel equipment room. Isolation water curtain nozzles 4 and negative pressure elimination control terminals 10 are set at the entrances and exits of the ammonia fuel equipment room. Fire alarm buttons 13, water curtain nozzle control terminals 7, water sprinkler nozzle control terminals 8, start and stop control terminals 9, negative pressure elimination control terminals 10 and fire alarm buttons 13 are arranged in sequence between the exit and entrance outside the ammonia fuel equipment room. An intelligent full-stack controller 1 is set at the corner of the room outside the ammonia fuel equipment room.

[0081] On the other hand, the present application provides a safety method for an ammonia fuel equipment room, which uses any of the safety systems for an ammonia fuel equipment room described above, including:

[0082] Trigger the intelligent full-stack controller through the start-stop control terminal;

[0083] The safety assurance component is manually triggered at scheduled intervals, and the intelligent full-stack controller determines the safety of personnel;

[0084] According to the safety status in the ammonia fuel equipment room detected by the detection component, the intelligent full-stack controller triggers the alarm component, the nozzle control terminal and the negative pressure elimination control terminal;

[0085] According to the control instructions of the intelligent full-stack controller, the nozzle control terminal triggers the nozzle assembly, the negative pressure elimination control terminal triggers the ventilation assembly, the nozzle assembly and the ventilation assembly adjust the safety status in the ammonia fuel equipment room and notify personnel to evacuate.

[0086] The intelligent safety system designed for the ammonia fuel equipment room of the present application can analyze the signals from various sensors and the manual instructions of the operator in real time through the integrated intelligent full-stack controller 1. The intelligent full-stack controller 1 is highly intelligent and can automatically adjust the working state of the control terminal to adapt to the current environmental conditions.

[0087] The safety system can automatically or manually switch to the corresponding mode according to the real-time monitoring data and the needs of the operator. This intelligent operation mode switching function enables the safety system to flexibly adapt to different working environments and provide timely and effective safety protection.

[0088] The safety system is designed with five operating modes, including startup mode, working mode, fire mode, ammonia leakage mode and shutdown mode, to cover various situations that operators may encounter in the equipment room. Each mode has targeted safety measures to ensure the most appropriate protection in specific situations.

[0089] Mode 1: Startup mode

[0090] Before operators prepare to enter the ammonia fuel equipment room, they will use the start-stop control terminal 9 to activate the safety system, at which time the safety system will automatically perform a series of safety checks:

[0091] (1) Fire detection: Through the fire detection probe 12, the safety system will automatically scan for potential fire risks;

[0092] (2) Ammonia detection: The ammonia gas detection probe 5 will monitor the ammonia concentration in the room in real time to ensure environmental safety;

[0093] (3) Negative pressure detection: The negative pressure detection sensor 14 will check the air pressure status of the room. If it is detected that the negative pressure exceeds the standard, the safety system will automatically start the negative pressure elimination control terminal 10 through the intelligent full-stack controller 1 to balance the air pressure;

[0094] (4) Guidance light strip activation: Once the above checks are completed, the alarm escape guidance light strip 2 in the room will be activated to provide a clear escape route for the operator.

[0095] After all these safety measures are confirmed to be correct, the system will issue a safety prompt, indicating that the room is ready and the operator is allowed to enter and start work. Then, the safety system automatically switches to working mode.

[0096] Mode 2: Working Mode

[0097] When the operator enters the ammonia fuel equipment room and starts working, the operator needs to follow the safety procedure, that is, press the reset device 11 every T minutes. This operation confirms the safety status of the operator to the safety system to ensure that everything is normal.

[0098] (1) Periodic safety confirmation: The operator periodically presses the reset device 11 to send a signal to the intelligent full-stack controller 1, indicating that the operator is still working safely and has not encountered any emergency situation;

[0099] (2) Automatic timeout alarm: If the operator does not perform a reset operation within the specified T minutes, the intelligent full-stack controller 1 will automatically trigger the safety alarm function. This mechanism is designed to respond to possible emergencies, such as when the operator encounters an accident and is unable to report it on his own;

[0100] (3) Emergency response: Once the security alarm function is triggered, the security system will immediately notify the on-duty personnel so that they can quickly take necessary manual intervention measures to deal with potential safety issues.

[0101] This design ensures continuous monitoring of operators during work, while providing a rapid response mechanism for possible emergencies, thereby maximizing operator safety.

[0102] Mode 3: Fire Mode

[0103] During the operation of the operator, if the intelligent full-stack controller 1 detects a fire through the fire detection probe 12, the safety system will automatically switch to the fire mode immediately and take the following emergency measures:

[0104] (1) Sound and light alarm: The safety system will activate the sound and light alarm device 3 in real time, emitting obvious sound and light signals to warn the operator and surrounding personnel of the occurrence of fire;

[0105] (2) Evacuation guidance: The alarm escape guidance light strip 2 will switch to a flashing state, providing operators with clear instructions for emergency evacuation;

[0106] (3) Environmental control: This safety system will automatically stop the fans in the room (here and in the following text, specifically the ammonia fuel equipment room) to prevent the spread of fire and smoke;

[0107] In addition, after receiving the sound and light alarm, the operator should immediately evacuate the room quickly and orderly according to the direction indicated by the alarm escape guide light strip 2;

[0108] (4) Emergency fire extinguishing: While evacuating safely, the operator should use the fire alarm button 13 outside the room to notify other personnel and activate the water sprinkler control terminal 8 to start the water sprinkler 6 to carry out preliminary fire extinguishing.

[0109] This automated and orderly fire response process is designed to minimize damage caused by fire and ensure the safe evacuation of operators.

[0110] Mode 4: Ammonia leakage mode

[0111] During the operation of the operator, if the safety system detects ammonia leakage through the ammonia gas detection probe 5, it will immediately switch to the ammonia leakage mode and take the following emergency measures:

[0112] (1) Sound and light alarm: The safety system will activate the sound and light alarm device 3 in real time, emitting obvious sound and light signals to warn the operator and surrounding personnel of the occurrence of ammonia leakage;

[0113] (2) Evacuation guidance: The alarm escape guidance light strip 2 will switch to a flashing state, providing operators with clear instructions for emergency evacuation;

[0114] (3) Environmental control: The safety system will automatically start the negative pressure elimination control terminal 10 to prevent the diffusion of ammonia;

[0115] In addition, after receiving the sound and light alarm, the operator should immediately evacuate the room quickly and orderly according to the direction indicated by the alarm escape guide light strip 2;

[0116] (4) Emergency ventilation: After the personnel have evacuated, the safety system will automatically start the emergency ventilation system and increase the ventilation volume to further dilute and discharge the leaked ammonia;

[0117] (5) Adsorption and isolation: The operator activates the water spray nozzle 6 through the water spray nozzle control terminal 8 outside the room to adsorb and neutralize the ammonia. At the same time, the isolation water curtain nozzle 4 is activated through the water curtain nozzle control terminal 7 to physically isolate the leakage area to prevent further diffusion of ammonia.

[0118] This automated and ordered ammonia leak response process is designed to minimize the risk posed by ammonia leaks and ensure the safe evacuation of operating personnel.

[0119] Mode 5: Off mode

[0120] After the operator completes the work tasks in the ammonia fuel equipment room and exits safely, the safety system should be set to the shutdown mode using the start-stop control terminal 9. In this mode, the safety system will perform the following operations:

[0121] (1) Turn off the alarm escape guide light strip: The alarm escape guide light strip 2 in the room will be turned off to indicate that there is no emergency at the moment and the room has returned to normal;

[0122] (2) Stop reset detection: The safety system will stop the regular detection of the reset device 11, because it is no longer necessary to monitor the status of the operator in the room.

[0123] Nevertheless, in order to ensure continuous safety monitoring, the security system will still keep the fire detection probe 12 and the ammonia gas detection probe 5 active, and these devices can continue to detect the room in real time through other security monitoring systems. In this way, even in the off mode, once a fire or ammonia leak is detected, the security system can still issue an alarm in time and take necessary safety measures.

[0124] In this way, the shutdown mode is designed to provide operators with a safe and orderly working environment, while ensuring that the security monitoring of the room is not completely interrupted when it is not in operation.

[0125] The safety system adopts a highly integrated design, which simplifies the operation process and makes the user interface intuitive and easy to understand, so that operators can quickly master and use it. The safety system has advanced intelligent functions (advanced intelligence level) and can accurately identify and respond to potential security threats, thereby providing efficient human safety disposal solutions to ensure the highest level of human safety. Thanks to the mature parts supply chain in the market, the comprehensive cost of the safety system can be effectively controlled, reducing the overall cost, while ensuring the reliability of the safety system and the convenience of maintenance.

[0126] On the other hand, the present application provides a ship, comprising a hull and a safety system between any one of the ammonia fuel equipments described above and arranged on the hull.

[0127] In summary, the safety system, method and ship of the ammonia fuel equipment room provided by the present application integrate multiple functions such as alarm escape guide light strip, sound and light alarm device, ammonia gas detection probe, water curtain nozzle control terminal, water sprinkler nozzle control terminal, start and stop control terminal, negative pressure elimination control terminal, reset device, fire detection probe, fire alarm button and negative pressure detection sensor through an intelligent full-stack controller, and control and isolate water curtain nozzles and water sprinkler nozzles respectively through the water curtain nozzle control terminal and the water sprinkler nozzle control terminal; when personnel are working normally, the intelligent full-stack controller determines the safety of personnel through the reset device; The intelligent full-stack controller automatically or passively triggers the alarm escape guide light strip and sound and light alarm device through ammonia gas detection probes, fire detection probes and fire alarm buttons to remind and guide personnel to evacuate to a safe area; the intelligent full-stack controller ensures the pressure safety in the ammonia fuel preparation room through the negative pressure elimination control terminal; the intelligent full-stack controller can automatically or manually switch to the corresponding operating mode (start-up mode, working mode, fire mode, ammonia leakage mode and shutdown mode) according to real-time monitoring data and manual needs of personnel, so that the safety system can flexibly adapt to different working environments and provide timely and effective safety protection.

[0128] Unless otherwise defined, all technical and scientific terms used in this application are the same as those generally understood by those skilled in the art to which this application belongs. If there is any inconsistency, the meaning described in the full text of this application or the meaning derived from the content recorded in the full text of this application shall prevail. In addition, the terms used in this description are only for the purpose of describing the embodiments of the present application and are not intended to limit the present application.

[0129] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may also include more other equivalent embodiments without departing from the technical concept of the present application, all of which belong to the protection scope of the present application.

[0130] In addition, the terms "installed", "set", "provided with", "connected", "connected", "socketed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0131] The above description is only an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structural transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A safety system for an ammonia fuel equipment room, characterized in that: include: A detection component, which includes an ammonia gas detection probe, a fire detection probe and a negative pressure detection sensor to detect the safety conditions inside the ammonia fuel equipment room, the safety conditions including ammonia concentration, smoke concentration and pressure; An alarm component, which includes an automatic alarm component and a manual alarm component; A nozzle assembly, which includes a plurality of nozzles; A control component, comprising an intelligent full-stack controller, a nozzle control terminal, a start-stop control terminal and a negative pressure elimination control terminal, wherein the intelligent full-stack controller is electrically connected to the nozzle control terminal, the start-stop control terminal, the negative pressure elimination control terminal, the detection component and the alarm component respectively, and the nozzle control terminal is electrically connected to the nozzle component; A safety assurance component includes a reset device, which is electrically connected to the intelligent full-stack controller.

2. The safety system for an ammonia fuel equipment room according to claim 1, characterized in that: The various nozzles include a plurality of isolated water curtain nozzles and a plurality of water spray nozzles.

3. The safety system for an ammonia fuel equipment room according to claim 2, characterized in that: The nozzle control terminal includes a water curtain nozzle control terminal and a water shower nozzle control terminal.

4. The safety system for an ammonia fuel equipment room according to claim 3, characterized in that: The nozzle control terminal is electrically connected to the nozzle assembly, and further comprises: The water curtain nozzle control terminal is electrically connected to the isolation water curtain nozzle; The water spray nozzle control terminal is electrically connected to the water spray nozzle.

5. The safety system for an ammonia fuel equipment room according to claim 2, characterized in that: The isolation water curtain nozzles are arranged at the entrances and exits and the vents of the ammonia fuel equipment room, and a plurality of the water spray nozzles are evenly arranged inside the ammonia fuel equipment room.

6. The safety system for an ammonia fuel equipment room according to claim 1, characterized in that: The negative pressure elimination control terminal is electrically connected to the ventilation component of the ammonia fuel equipment room to adjust the pressure inside the ammonia fuel equipment room.

7. The safety system for an ammonia fuel equipment room according to claim 1, characterized in that: The automatic alarm component includes an alarm escape guide light strip and an audible and visual alarm device, which is used to be automatically triggered by the detection component in the intelligent full-stack controller.

8. The safety system for an ammonia fuel equipment room according to claim 7, characterized in that: The manual alarm component includes a fire alarm button, which is used to trigger the alarm escape guide light strip and the sound and light alarm device by the intelligent full-stack controller after being manually triggered.

9. A safety method for an ammonia fuel equipment room, characterized in that: The safety system for the ammonia fuel equipment room using any one of claims 1 to 8 above comprises: Trigger the intelligent full-stack controller through the start-stop control terminal; Manually triggering the safety assurance component at predetermined intervals, the intelligent full-stack controller determines the safety of personnel; According to the safety status in the ammonia fuel equipment room detected by the detection component, the intelligent full-stack controller triggers the alarm component, the nozzle control terminal and the negative pressure elimination control terminal; According to the control instructions of the intelligent full-stack controller, the nozzle control terminal triggers the nozzle assembly, the negative pressure elimination control terminal triggers the ventilation assembly, the nozzle assembly and the ventilation assembly adjust the safety status in the ammonia fuel equipment room and notify the personnel to evacuate.

10. A ship, characterized in that: The invention comprises a hull and a safety system between the ammonia fuel equipment according to any one of claims 1 to 8 arranged on the hull.

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