阅读说明：本技术 一种船舶消防系统 (Ship fire-fighting system ) 是由 闫政 杨超 王红梅 梁赤光 于 2021-07-30 设计创作，主要内容包括：本发明实施例的船舶消防系统应用于以甲醇作为能源的船舶,通过甲醇起火监测模块采用多探头对船舶上的甲醇起火风险区域进行火情探测,以及采用摄像头采集视频数据,并将视频数据发送到视频显示器,以及在探测到甲醇起火时向安全模块和灭火模块发送甲醇起火报警指令,还通过甲醇泄露监测模块对船舶上的甲醇泄露风险区域进行监测,以及在监测到甲醇泄露时向安全模块发送甲醇泄露指令,实现了在船舶上通过多探头和视频同时对甲醇火情进行监测,同时还通过甲醇泄露监测模块监测甲醇泄露,能够准确、及时监测到甲醇火情和甲醇泄露,并通过安全模块和灭火模块执行相应的消防措施,保障了船舶安全。(The ship fire fighting system of the embodiment of the invention is applied to a ship using methanol as an energy source, a methanol fire monitoring module is used for detecting the fire of a methanol fire risk area on the ship by adopting a plurality of probes, a camera is used for collecting video data, the video data is sent to a video display, a methanol fire alarm instruction is sent to a safety module and a fire extinguishing module when the methanol fire is detected, the methanol leakage risk area on the ship is monitored by a methanol leakage monitoring module, and the methanol leakage instruction is sent to the safety module when the methanol leakage is monitored, so that the methanol fire can be monitored on the ship by the plurality of probes and the video at the same time, the methanol leakage is monitored by the methanol leakage monitoring module, the methanol fire and the methanol leakage can be accurately and timely monitored, and corresponding fire fighting measures are executed by the safety module and the fire extinguishing module, the safety of the ship is guaranteed.)

1. A fire fighting system for a ship using methanol as an energy source, comprising:

the methanol fire monitoring module is used for detecting fire conditions of a methanol fire risk area on a ship by adopting multiple probes, acquiring video data by adopting a camera, sending the video data to a video display, and sending a methanol fire alarm instruction to the safety module and the fire extinguishing module when detecting that methanol fires;

the methanol leakage monitoring module is used for monitoring a methanol leakage risk area on the ship and sending a methanol leakage instruction to the safety module when the methanol leakage is monitored;

the safety module is used for executing protective measures when a methanol fire alarm instruction and/or a methanol leakage instruction are received;

and the fire extinguishing module is used for starting the fire extinguishing device to extinguish fire when receiving the methanol fire alarm instruction.

2. The system of claim 1, wherein the methanol fire monitoring module comprises:

the smoke sensor is used for monitoring whether the methanol fire risk area on the ship has methanol fire;

the infrared probe is used for monitoring whether the methanol ignition risk area on the ship generates methanol ignition;

the methanol ignition determining submodule is used for determining that methanol ignition occurs on the ship when the smoke sensor and the infrared probe both monitor that methanol is ignited;

and the methanol fire alarm instruction sending submodule is used for sending a methanol fire alarm instruction to the safety module and the fire extinguishing module when the methanol fire determining submodule determines that methanol fire occurs.

3. The system of claim 1, wherein the methanol fire monitoring module comprises:

the infrared camera is used for collecting infrared video data of the methanol fire risk area on the ship;

the fisheye camera is used for collecting panoramic video data of a methanol fire risk area on the ship;

a video display for displaying the infrared video data and the panoramic video data on a display.

4. The system of claim 1, wherein the methanol fire monitoring module comprises:

and the temperature acquisition submodule is used for acquiring the temperature of a methanol fire risk area on the ship and sending a water spraying cooling instruction to the water spraying module when the temperature is greater than a preset threshold value.

5. The system of claim 4, wherein the marine fire protection system further comprises:

and the water spraying module is used for spraying water to the methanol fire risk area on the ship when receiving the water spraying and cooling instruction sent by the temperature acquisition submodule.

6. The system of claim 1, wherein the methanol leak monitoring module comprises:

the methanol concentration detection submodule is used for detecting the methanol concentration of a methanol leakage risk area on the ship;

the methanol concentration grade determining submodule is used for determining the concentration grade of the methanol concentration;

and the methanol leakage instruction sending submodule is used for sending a methanol leakage instruction of a corresponding grade to the safety module according to the concentration grade.

7. The system of claim 6, wherein the methanol leak monitoring module further comprises:

the methanol leakage display submodule is used for displaying the methanol concentration of the methanol leakage risk area;

and the data recording submodule is used for recording the methanol concentration of the methanol leakage risk area.

8. The system of claim 6, wherein the methanol leak monitoring module further comprises:

and the water spraying dilution instruction sending submodule is used for sending a water spraying dilution instruction to the water spraying module when the methanol concentration is greater than a preset threshold value.

9. The system of claim 8, wherein the marine fire protection system further comprises:

and the water spraying module is used for spraying water to the methanol leakage risk area on the ship when the water spraying dilution instruction sent by the water spraying dilution instruction sending submodule is received.

10. The system of claim 1, wherein the security module comprises:

the alarm submodule is used for alarming when a methanol fire alarm instruction and/or a methanol leakage instruction are received;

and the methanol conveying cutting sub-module is used for receiving a methanol fire alarm instruction and/or a methanol leakage instruction to cut off methanol conveying.

Technical Field

The embodiment of the invention relates to the technical field of ship safety, in particular to a ship fire-fighting system.

Background

Methanol is used as one of basic organic raw materials, is used for manufacturing various organic products such as methyl chloride, methylamine and dimethyl sulfate, is also one of basic chemical raw materials, is used as a novel marine fuel, hardly generates sulfur oxides and particulate matters, is environment-friendly and has considerable benefits, and is a sustainable development type fuel.

Mainly adopt temperature sensing smoke detector, video monitoring to survey the emergence of fire alarm on present boats and ships, and methyl alcohol is volatile, and the smog that produces during preliminary burning is few, the flame colour is light, and present fire alarm detection system can't in time detect the methyl alcohol condition of a fire, can't detect the methyl alcohol condition of a fire even, and the risk is bigger to the boats and ships that have stored methyl alcohol.

Disclosure of Invention

The embodiment of the invention provides a ship fire-fighting system, which aims to solve the problem that the existing ship fire-fighting system cannot detect the methanol fire in time or even cannot detect the methanol fire.

The embodiment of the invention provides a ship fire-fighting system, which is applied to a ship using methanol as energy and comprises the following components:

the methanol fire monitoring module is used for detecting fire conditions of a methanol fire risk area on a ship by adopting multiple probes, acquiring video data by adopting a camera, sending the video data to a video display, and sending a methanol fire alarm instruction to the safety module and the fire extinguishing module when detecting that methanol fires;

the methanol leakage monitoring module is used for monitoring a methanol leakage risk area on the ship and sending a methanol leakage instruction to the safety module when the methanol leakage is monitored;

the safety module is used for executing protective measures when a methanol fire alarm instruction and/or a methanol leakage instruction are received;

and the fire extinguishing module is used for starting the fire extinguishing device to extinguish fire when receiving the methanol fire alarm instruction.

Optionally, the methanol ignition monitoring module comprises:

the smoke sensor is used for monitoring whether the methanol fire risk area on the ship has methanol fire;

the infrared probe is used for monitoring whether the methanol ignition risk area on the ship generates methanol ignition;

the methanol ignition determining submodule is used for determining that methanol ignition occurs on the ship when the smoke sensor and the infrared probe both monitor that methanol is ignited;

and the methanol fire alarm instruction sending submodule is used for sending a methanol fire alarm instruction to the safety module and the fire extinguishing module when the methanol fire determining submodule determines that methanol fire occurs.

Optionally, the methanol ignition monitoring module comprises:

the infrared camera is used for collecting infrared video data of the methanol fire risk area on the ship;

the fisheye camera is used for collecting panoramic video data of a methanol fire risk area on the ship;

a video display for displaying the infrared video data and the panoramic video data on a display.

Optionally, the methanol ignition monitoring module comprises:

and the temperature acquisition submodule is used for acquiring the temperature of a methanol fire risk area on the ship and sending a water spraying cooling instruction to the water spraying module when the temperature is greater than a preset threshold value.

Optionally, the ship fire fighting system further comprises:

and the water spraying module is used for spraying water to the methanol fire risk area on the ship when receiving the water spraying and cooling instruction sent by the temperature acquisition submodule.

Optionally, the methanol leakage monitoring module includes:

the methanol concentration detection submodule is used for detecting the methanol concentration of a methanol leakage risk area on the ship;

the methanol concentration grade determining submodule is used for determining the concentration grade of the methanol concentration;

and the methanol leakage instruction sending submodule is used for sending a methanol leakage instruction of a corresponding grade to the safety module according to the concentration grade.

Optionally, the methanol leakage monitoring module further comprises:

the methanol leakage display submodule is used for displaying the methanol concentration of the methanol leakage risk area;

and the data recording submodule is used for recording the methanol concentration of the methanol leakage risk area.

Optionally, the methanol leakage monitoring module further includes:

and the water spraying dilution instruction sending submodule is used for sending a water spraying dilution instruction to the water spraying module when the methanol concentration is greater than a preset threshold value.

Optionally, the ship fire fighting system further comprises:

and the water spraying module is used for spraying water to the methanol leakage risk area on the ship when the water spraying dilution instruction sent by the water spraying dilution instruction sending submodule is received.

Optionally, the security module comprises:

the alarm submodule is used for alarming when a methanol fire alarm instruction and/or a methanol leakage instruction are received;

and the methanol conveying cutting sub-module is used for receiving a methanol fire alarm instruction and/or a methanol leakage instruction to cut off methanol conveying.

The ship fire fighting system of the embodiment of the invention is applied to a ship using methanol as an energy source, a methanol fire monitoring module is used for detecting the fire of a methanol fire risk area on the ship by adopting a plurality of probes, a camera is used for collecting video data, the video data is sent to a video display, a methanol fire alarm instruction is sent to a safety module and a fire extinguishing module when the methanol fire is detected, the methanol leakage risk area on the ship is monitored by a methanol leakage monitoring module, and the methanol leakage instruction is sent to the safety module when the methanol leakage is monitored, so that the methanol fire can be monitored on the ship by the plurality of probes and the video at the same time, the methanol leakage is monitored by the methanol leakage monitoring module, the methanol fire and the methanol leakage can be accurately and timely monitored, and corresponding fire fighting measures are executed by the safety module and the fire extinguishing module, the safety of the ship is guaranteed.

Drawings

Fig. 1 is a block diagram of a fire fighting system for a ship according to an embodiment of the present invention;

FIG. 2 is a block diagram of a methanol ignition monitoring module according to another embodiment of the present invention;

fig. 3 is a block diagram of a methanol leakage monitoring module according to another embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the process of storing and transporting methanol in a ship and using the methanol as a fuel, under the action of internal air pressure, a pipeline is easy to leak after being used for a certain time, or a welding seam appears at a welding position during connection, so that the possibility of leakage can exist, due to the special characteristics of colorless, volatile, flammable and explosive methanol fuel, the danger of combustion, explosion or poisoning can be caused, the methanol has the characteristic of low flash point (the flash point is 11 ℃), and under the irradiation of sunlight or light with certain intensity, the danger that the methanol is burning but cannot be perceived by human eyes can possibly occur, so that the embodiment provides a fire fighting implementation scheme which is simple in structure, convenient to use and capable of quickly reacting and is based on the characteristic of the methanol fuel for the condition that the methanol is used as the fuel and stored and transported on the ship based on the risk evaluation of the methanol fuel.

Referring to fig. 1, a block diagram of a ship fire fighting system according to an embodiment of the present invention is shown, and the ship fire fighting system may include a methanol fire monitoring module 10, a methanol leakage monitoring module 20, a safety module 30, and a fire extinguishing module 40, wherein the safety module 30 is connected to the methanol fire monitoring module 10 and the methanol leakage monitoring module 20, respectively, and the fire extinguishing module 40 is connected to the methanol fire monitoring module 10.

Specifically, the methanol ignition monitoring module 10 may include at least one sensor configured for methanol combustion characteristics, which may effectively monitor methanol combustion, in an optional embodiment, the methanol ignition monitoring module 10 may include at least one sensor and a camera configured to monitor methanol combustion, wherein the camera may include a common optical camera and an infrared camera, and then various sensors and cameras may be disposed in a methanol ignition risk area on a ship, for example, the methanol ignition risk area may be an area where methanol ignition is likely to occur, such as a methanol pump cabin of a ship, a host using methanol as fuel, and the like.

In the embodiment of the invention, the methanol fire monitoring module 10 is used for detecting fire in a methanol fire risk area on a ship by adopting multiple probes, acquiring video data by adopting a camera, sending the video data to a video display so that an attendant can monitor the fire in real time by adopting a closed circuit television monitoring system, and sending a methanol fire alarm instruction to the safety module 30 and the fire extinguishing module 40 when detecting that the methanol fire occurs so as to warn the crew of rapid response to the fire. Wherein, the safety module 30 may be a module having a methanol fire alarm and cutting off the supply of methanol, and the fire extinguishing module 40 may be a module effectively extinguishing a methanol fire.

The methanol leakage monitoring module 20 may be a module for detecting methanol leakage, and the methanol leakage monitoring module 20 may be disposed in a methanol leakage risk region on a ship, and configured to monitor the methanol leakage risk region on the ship, and send a methanol leakage instruction to the safety module 30 when monitoring methanol leakage. The methanol leakage risk areas on the ship can be areas which are easy to cause methanol leakage, such as the inside of a methanol conveying pipeline, the outside of the methanol conveying pipeline, a methanol pump room and the like, when methanol gas in the air reaches a certain concentration, toxic reaction can be generated through the ingestion of the digestive tract, the respiratory tract or the skin of a human body, and the influence on the nervous system and the blood system of the human body is the greatest, so that the detection of the methanol gas leakage is very necessary in the process of using the methanol as fuel and storing and transporting the methanol in the ship.

The safety module 30 may be a module having functions of alarming and executing corresponding protection measures, and the safety module 30 is configured to execute the protection measures when receiving a methanol fire alarm instruction sent by the methanol fire monitoring module 10 and/or a methanol leakage instruction sent by the methanol leakage monitoring module 20, for example, the safety module may send a methanol fire and leakage alarm signal on a whole ship, where the alarm signal may be a warning sound, a warning light, or the like, and may also cut off methanol supply when the methanol fire and leakage occur.

The fire extinguishing module 40 is used for starting the fire extinguishing device to extinguish fire when receiving the methanol fire alarm instruction sent by the methanol fire monitoring module 10. When the methanol liquid or gas meets static electricity or open fire, the methanol liquid or gas can be combusted and exploded, and the methanol fire belongs to water-soluble B-type fire, so that the fire extinguishing agent selected by the fire extinguishing device can be anti-soluble foam, dry powder, carbon dioxide, sandy soil and the like. Considering that under the condition that there is the crewman in the space of firing a fire, the sudden release of fire extinguishing agent may cause certain injury to the human body, consequently, to the space region of equipment automation work and no staff work, can adopt the mode of automatic release extinguishing device, and to the region that has crewman work, can adopt the mode that the manual release extinguishing device of alarm warning crewman, the personal safety of crewman has been considered and has been ensured in the time of putting out a fire, avoid the injury that the fire extinguishing agent brings to the human body, can specifically set for according to actual conditions. The fire extinguishing module 40 can start the fire extinguishing device to extinguish fire according to the methanol fire alarm instruction, thereby ensuring the personal safety of crews, preventing the fire from spreading and reducing the economic and material losses on ships.

The ship fire fighting system of the embodiment of the invention is applied to a ship using methanol as an energy source, a methanol fire monitoring module is used for detecting the fire of a methanol fire risk area on the ship by adopting a plurality of probes, a camera is used for collecting video data, the video data is sent to a video display, a methanol fire alarm instruction is sent to a safety module and a fire extinguishing module when the methanol fire is detected, the methanol leakage risk area on the ship is monitored by a methanol leakage monitoring module, and the methanol leakage instruction is sent to the safety module when the methanol leakage is monitored, so that the methanol fire can be monitored on the ship by the plurality of probes and the video at the same time, the methanol leakage is monitored by the methanol leakage monitoring module, the methanol fire and the methanol leakage can be accurately and timely monitored, and corresponding fire fighting measures are executed by the safety module and the fire extinguishing module, the safety of the ship is guaranteed.

As shown in fig. 2, in an alternative embodiment of the present invention, the methanol fire monitoring module 10 may include a smoke sensor 101, an infrared probe 102, a methanol fire determination submodule 103, and a methanol fire alarm instruction transmission submodule 104.

The smoke sensor 101 and the infrared probe 102 are arranged in a methanol fire risk area on a ship and used for monitoring whether the methanol fire risk area on the ship is subjected to methanol fire, specifically, the smoke sensor 101 can convert the smoke concentration change of a detection area into an electric signal to achieve the purpose of alarming, and the infrared probe 102 can sensitively identify a specific wavelength band in flame and further identify the occurrence of fire and send out an alarm. In the initial stage of a fire, because the temperature is low, most substances are in a smoldering stage, a large amount of smoke is generated, and when the flame combustion is started in the initial stage of the fire, ultraviolet rays and infrared rays with different wavelengths which cannot be distinguished by naked eyes are contained in the flame, so that in a methanol pump room, a deck and other risk areas where methanol ignition easily occurs, a smoke sensor 101 and an infrared probe 102 can be used together, so that in the initial stage of the fire when methanol combustion occurs, the fire can be timely detected and an alarm can be given out, the fire is prevented from expanding, and the economic loss of ships and the injury to crews are reduced.

The methanol fire determination submodule 103 is configured to determine that a methanol fire occurs on a ship when both the smoke sensor and the infrared probe monitor the methanol fire, so as to reduce erroneous determination of the methanol fire, and because there may be dust or high temperature under normal conditions, for example, when a kitchen, a drying room, etc. on the ship works under high temperature conditions, there may be high temperature flames that may be erroneously determined by the infrared probe 102 as the methanol fire, and dust powder, etc. that may be erroneously determined by the smoke sensor 101 as smoke and dust of the methanol fire, in order to reduce erroneous determination of the methanol fire, or even fail to monitor the methanol fire, the infrared probe may detect infrared radiation generated by the high temperature when the methanol is burned, and when the smoke sensor 101 and the infrared probe 102 detect a fire at the same time, an alarm may be generated, so as to effectively and accurately determine the methanol fire, which enhances the determination function of the methanol fire, the reliability of fire detection is also improved. In addition, when the monitored area is an area where methanol is inflammable and explosive, such as a methanol pump room, an explosion-proof smoke-sensitive fire alarm probe and an explosion-proof infrared flame probe can be used, and the type of the probes is not limited by the invention.

The methanol fire alarm instruction sending submodule 104 is configured to send a methanol fire alarm instruction to the safety module 30 and the fire extinguishing module 40 when the methanol fire determination submodule 103 determines that a methanol fire occurs, so as to instruct the safety module 30 to execute a corresponding safety control measure according to a methanol fire situation and instruct the fire extinguishing module 40 to execute a corresponding fire extinguishing measure.

As shown in FIG. 2, in an alternative embodiment of the present invention, the methanol fire monitoring module 10 further includes an infrared camera 105, a fisheye camera 106 and a video display 107.

Wherein, infrared camera 105 can gather the infrared wave that camera field of vision within range object radiated and come the formation of image, consequently, when the intensity of a fire that the methyl alcohol was on fire is less, infrared camera also can shoot the image of the intensity of a fire and send the image to camera display, and fisheye camera 106 can be the panoramic camera that can independently realize on a large scale no dead angle control. Considering that a methanol pump cabin, a methanol daily cabin and the like belong to a high-risk area where methanol fires and explodes, the fire should be monitored timely and accurately, the fire is found and extinguished as soon as possible when the fire is small, an infrared camera 105 and a fisheye camera 106 can be arranged in the high-risk area such as the methanol pump cabin and the methanol daily cabin at the same time, the fire can be fed back to a camera display when methanol starts to burn, so that operators on duty can control the overall situation of the fire in the monitoring area, fire extinguishing points can be found and extinguished timely, the fire is prevented from being expanded, and economic loss of ships and injury to crews are reduced. In addition, considering that a methanol pump cabin, a methanol daily cabin and the like belong to high risk areas where methanol fires and explodes, the infrared camera 105 can adopt an explosion-proof infrared camera, namely an infrared camera with an explosion-proof function, so that explosion cannot be caused even if the periphery of the infrared camera is filled with methanol gas, and the safety of crews can be further ensured.

The video display 107 is used for displaying the infrared video data and the panoramic video data on a display to allow an attendant to control the overall situation of the fire in the monitored area, the video display may be two or more displays for respectively displaying the images shot by the infrared camera 105 and the fisheye camera 106, or may be a single display for simultaneously displaying the images shot by the explosion-proof infrared camera and the fisheye camera, and the like, and the display mode, the number and the like of the video display 107 are not limited in the present invention.

Further, can also set up the position parameter of every probe on boats and ships, and can monitor the alarm condition and the position parameter of every probe, come probe rational distribution to take place the risk area or other important areas that methyl alcohol caught fire easily on boats and ships according to the detection scope of probe, when the probe shoots the conflagration image or detects the conflagration and send out the police dispatch newspaper, then can catch up to the region of taking place the conflagration through the position parameter of probe fast accurately, reduce the time of looking for the conflagration region, and then can eliminate the conflagration fast.

As shown in fig. 3, the methanol leakage monitoring module 20 includes a methanol concentration detection sub-module 201, a methanol concentration level determination sub-module 202, a methanol leakage instruction transmission sub-module 203, a methanol leakage display sub-module 204, and a data recording sub-module 205.

Wherein, methanol concentration detection submodule 201 is used for surveying the methanol concentration that the risk zone was revealed to the methanol on the boats and ships, concretely, can adopt a plurality of infrared gas detector that the distribution set up to detect methanol concentration, infrared gas detector utilizes different gas to infrared wave absorption degree difference, detect gas through measuring infrared absorption wavelength, express the composition of different gas through analog signal, information such as content, it is good to have poisoning resistance, the reaction is sensitive, gaseous with strong points, environmental suitability is strong etc. characteristics, therefore, this embodiment adopts infrared gas detector to monitor the methanol leakage risk zone on the boats and ships, can monitor methanol leakage accurately fast.

The methanol concentration level determination submodule 202 is configured to determine a concentration level to which the methanol concentration belongs. Because the influence of methanol in different concentration ranges on a human body is different, the concentration levels of methanol leakage can be distinguished according to the influence degree of the methanol on the human body, on the other hand, the methanol and air (or oxygen) are uniformly mixed in a certain concentration range to form premixed gas, and the premixed gas can explode when meeting an ignition source, and the concentration range is called as an explosion concentration limit (LEL), so that the concentration levels can be distinguished according to the explosion concentration of the methanol. In order to facilitate the management and control of the dangerous level of methanol leakage, when the methanol concentration detection submodule 201 detects the concentration of methanol leaked from the air, the methanol concentration level determination submodule 202 converts the concentration of methanol collected by the methanol concentration detection submodule 201 into concentration level information according to a preset corresponding relationship between concentration and concentration level, specifically, the preset corresponding relationship between concentration and concentration level may set a plurality of concentration levels according to a lower limit of methanol poisoning concentration, an explosion concentration limit and the like of a human body, for example, the concentration level is set to slight leakage when the concentration of methanol is less than 5% LEL, the concentration level is set to moderate leakage when the concentration of methanol is in a range of 5% -20% LEL, the concentration level is set to severe leakage when the concentration of methanol is above 20% LEL, or the concentration level is set to moderate leakage when a single infrared gas detector detects in a range of 20% LEL, when a single infrared gas detector detects that the concentration of the methanol is above 20% LEL, or when two infrared gas detectors detect that the concentration of the methanol is above 40% LEL, the concentration grade is set to be severe leakage, and the like.

The methanol leakage instruction sending submodule 203 is used for sending methanol leakage instructions of corresponding levels to the safety module according to concentration levels, wherein different concentration levels correspond to different methanol leakage instructions, for example, when the concentration level of the methanol leakage is slight leakage, an alarm command can be issued to inform the relevant personnel to perform detection and repair on the methanol supply or use equipment in the leakage area, so that the leakage of methanol is stopped, when the concentration level is moderate leakage, a command for shutting down the methanol delivery system can be issued, the methanol supply or use equipment in the leakage area is detected and repaired, the leakage of the methanol is stopped, meanwhile, the crew is reminded to prevent the methanol poisoning, when the concentration level is severe leakage, the crew can send out a command of shutting off the methanol conveying system and a command of warning the whole ship, while the methanol supply is shut off, the whole ship personnel are informed to immediately take anti-poisoning measures and evacuate the dangerous area.

The methanol leakage display submodule 204 is used for displaying the methanol concentration of the methanol leakage risk area, and can be arranged in the relatively dense working areas of the crewman such as a cargo control room, a centralized control room, a cab safety desk and the like, so that the crewman can conveniently monitor the methanol concentration in real time and know the variation trend of the methanol concentration, and can conveniently take corresponding measures in time when the methanol concentration continuously rises.

The data recording sub-module 205 is used for recording the methanol concentration in the methanol leakage risk area, and specifically, a sailing recorder (black box) can be used for recording methanol concentration information, can be used for analyzing accidents such as methanol leakage and fire, and is sent to a sailing simulator after being processed, so that the accident process is reproduced, the reason of the accident is analyzed vividly, and related equipment or programs are adjusted and improved to reduce the repeated occurrence risk of the methanol accident.

The safety module 30 is used for executing a protection measure when receiving a methanol fire alarm instruction sent by the methanol fire monitoring module 10 and/or a methanol leakage instruction sent by the methanol leakage monitoring module 20, and in an alternative embodiment of the present invention, the safety module 30 includes an alarm sub-module and a methanol delivery cut-off sub-module.

The alarm submodule is used for alarming when receiving a methanol fire alarm instruction and/or a methanol leakage instruction, for example, a fire acousto-optic alarm is used for sending an acousto-optic alarm signal prompt when receiving the methanol fire alarm instruction and/or the methanol leakage instruction, and reminding an operator on duty to take safety measures in time so as to avoid the occurrence of methanol explosion accidents.

The methanol conveying and cutting sub-module is used for cutting off methanol conveying after receiving a methanol fire alarm instruction and/or a methanol leakage instruction, and specifically can automatically close a methanol conveying valve or cut off a methanol supply system and the like to block a methanol source, prevent the concentration of methanol from rising caused by continuous output of methanol, and also can close a fan to prevent a ventilation system from diffusing methanol, and prevent a shipman from being poisoned caused by diffusion of methanol.

In an optional embodiment of the present invention, the methanol fire monitoring module 10 further includes a temperature acquisition sub-module, where the temperature acquisition sub-module is configured to acquire a temperature of a methanol fire risk area on the ship, and send a water spray cooling instruction to the water spray module when the temperature is greater than a preset threshold, and a part of the area on the cabin may be overheated on the surface of the equipment or the cabin due to sunlight irradiation, heat supply, or the like, for example, a deck surface on the sea may be in a sunlight direct-irradiation state for a long time during a navigation process, the deck surface temperature may reach a high temperature, even reach a temperature that may cause methanol combustion, and at this time, once methanol leakage occurs, there is a risk of methanol combustion or explosion. Therefore, this embodiment has set up the temperature acquisition submodule piece to each risk zone's of control temperature to and send water spray cooling instruction when risk zone's temperature surpasses predetermined temperature threshold, avoid risk zone high temperature, take place the risk of methanol burning or explosion when having reduced methanol and revealed, improved the security in cabin.

In an optional embodiment of the invention, the ship fire fighting system further comprises a water spraying module, and the water spraying module is used for spraying water to the methanol fire risk area on the ship when receiving a water spraying and cooling instruction sent by the temperature acquisition sub-module. When the water spray module receives the water spray cooling instruction that the temperature acquisition submodule sent, it needs to cool down the risk area to show, this embodiment adopts and sprays water to the risk area, utilizes the vapor to send out the heat and make the regional cooling of risk, nevertheless to the region including complicated electronic components, can be by artificial water spray to avoid automatic water spray unidentifiable and damage electronic components, perhaps place the ice-cube in the region, set up cooling equipment etc. and cool down. In addition, dry ice cooling and the like can also be adopted, the specific cooling mode is set according to the actual requirement, and the cooling mode of the methanol fire risk area is not limited by the invention.

In another optional embodiment of the present invention, the methanol leakage monitoring module further includes a water spray dilution instruction sending submodule, configured to send a water spray dilution instruction to the water spray module when the methanol concentration is greater than a preset threshold. The human body can cause the poisoning after inhaling certain concentration methanol gas, consequently, when methanol leakage takes place and methanol concentration is greater than preset threshold, send water spray dilution instruction to the water spray module to instruct water spray module to take measures to reduce the methanol concentration in the air.

In another optional embodiment of the invention, the ship fire fighting system further comprises a water spraying module, which is used for spraying water to the methanol leakage risk area on the ship when receiving the water spraying dilution instruction sent by the water spraying dilution instruction sending submodule, so as to dilute the methanol in the air to reduce the concentration of the methanol, and further reduce the damage of the methanol leakage to the human body. Specifically, when the methanol leakage area in the ship is the area including various electronic components such as between the methanol pumps, the water spraying area can be set according to actual needs, for example, only the spacious area in the methanol pump room is sprayed, and the area where the electronic components are located can be sprayed with water in the spacious field to dilute the methanol and finish the back, judge whether to spray water to other areas and confirm the water spraying amount by the staff, or carry out artificial water spraying by the staff, and the like.

In yet another alternative embodiment of the present invention, the ship fire fighting system further comprises a communication module, when methanol leakage occurs or methanol fire occurs, a finder can communicate with other people on the ship in time through the communication module, and the communication module can be arranged at a cab, beside a main engine of methanol fuel, a storage tank of a methanol pump cabin, etc. so that a crew or a monitoring person can communicate with the control station in time, collect relevant information in time and rapidly direct the crew to take a fire and operate relevant measures such as fire fighting on site.

The ship fire fighting system of the embodiment of the invention is applied to a ship using methanol as an energy source, a methanol fire monitoring module is used for detecting the fire of a methanol fire risk area on the ship by adopting a plurality of probes, a camera is used for collecting video data, the video data is sent to a video display, a methanol fire alarm instruction is sent to a safety module and a fire extinguishing module when the methanol fire is detected, the methanol leakage risk area on the ship is monitored by a methanol leakage monitoring module, and the methanol leakage instruction is sent to the safety module when the methanol leakage is monitored, so that the methanol fire can be monitored on the ship by the plurality of probes and the video at the same time, the methanol leakage is monitored by the methanol leakage monitoring module, the methanol fire and the methanol leakage can be accurately and timely monitored, and corresponding fire fighting measures are executed by the safety module and the fire extinguishing module, the safety of the ship is guaranteed.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.