Marine fuel leakage monitoring and processing system

Abstract

The invention relates to the technical field of ship monitoring, in particular to a ship fuel leakage monitoring and processing system which is provided with a fuel preparation room module, a fuel daily cabin module, a stern fuel cabin joint area module, a bow fuel cabin joint area module, a fuel storage cabin module and a double-bottom area module. The fuel preparation room module, the fuel daily cabin module, the stern fuel cabin joint area module, the bow fuel cabin joint area module, the fuel storage cabin module and the double-layer bottom area module are respectively used for connecting a fuel preparation room, a fuel daily cabin, a stern fuel cabin joint area and a bow fuel cabin joint area; the areas where fuel leaks in the fuel storage cabin module and the double-layer bottom area are monitored, leaked fuel is collected, and therefore the situation that the leaked fuel influences the health of sailors and the marine ecological environment can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of ship monitoring, and in particular to a ship fuel leakage monitoring and processing system. Background Art

[0002] With the increasing global environmental awareness and the urgency of climate change, the ship fuel industry is facing tremendous pressure for change. Traditional heavy oil and high sulfur fuels can no longer meet increasingly stringent environmental regulations and international standards due to their high carbon emissions and environmental pollution. Therefore, the demand for low-carbon fuels in the ship industry has shown a clear upward trend, which is not only an inevitable choice to cope with environmental challenges, but also the key to promoting industry innovation and sustainable development.

[0003] Compared with other liquid fuels, methanol has the highest hydrogen-to-carbon ratio, the lowest carbon content per unit, and does not contain sulfur. It does not produce sulfur oxygen products after combustion. It has gradually assumed the main responsibility for carbon reduction in the fuel field and has attracted much attention from the industry.

[0004] However, since methanol itself is toxic and harmful, during the combustion and transportation of methanol, ships need to monitor and deal with methanol leakage in real time. If it is not dealt with in time, it will have irreversible impacts on the health of the crew and the marine ecological environment. However, the methanol fuel ships currently on the market do not have a complete system to deal with methanol leakage. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a ship fuel leakage monitoring and processing system to solve the problem that ships in the prior art do not have a complete system to monitor and process methanol leakage in real time, thereby affecting the health of crew members and the marine ecological environment.

[0006] To achieve the above-mentioned purpose and other related purposes, the present invention provides a ship fuel leakage monitoring and processing system, which includes a fuel preparation room module, a fuel daily tank module, a stern fuel tank joint area module, a bow fuel tank joint area module, a fuel storage tank module and a double bottom area module. The fuel preparation room module, the fuel daily tank module, the stern fuel tank joint area module, the bow fuel tank joint area module, the fuel storage tank module and the double bottom area module are respectively used to monitor the fuel preparation room, the fuel daily tank, the stern fuel tank joint area, the bow fuel tank joint area, the fuel storage tank module and the double bottom area where fuel leakage occurs, and collect the leaked fuel.

[0007] Optionally, the fuel preparation room module includes a liquid collecting tray, a drain pipe, a liquid level switch and a fuel preparation room sewage well. The liquid collecting trays are respectively arranged below the high-pressure pump unit, below the generator, below the main engine and below the fuel supply unit in the fuel preparation room. The drain pipes are respectively arranged at the lowest points of the double-walled pipes of the main engine / generator fuel supply system and the fuel delivery system in the fuel preparation room. The drain pipes are connected to the corresponding outer cavities of the double-walled pipes. The liquid collecting tray and the drain pipe are both connected to the fuel preparation room sewage well through pipes. The liquid level switches are respectively arranged at the bottom of the liquid collecting tray corresponding to the fuel supply unit, on the side walls of the drain pipe and at the entrance of the fuel preparation room sewage well.

[0008] Optionally, the fuel daily tank module includes a water-blocking flat iron, an isolation void tank, a liquid level switch and a stern fuel tank bottom water tank, the isolation void tank is arranged on the upper and lower side walls of the fuel daily tank and near the stern / bow, the water-blocking flat iron is arranged around the side walls of the fuel daily tank which is above the deck and where the isolation void tank is not arranged, and forms a water-blocking flat iron area, the isolation cavity and the water-blocking flat iron area are both used to collect fuel leaked from the fuel daily tank, the water-blocking flat iron area and the isolation void tank are both connected to the stern fuel tank bottom water tank through pipes, and the liquid level switch is respectively arranged at the bottom of the water-blocking flat iron area and the isolation void tank.

[0009] Optionally, the stern fuel tank joint area module includes a stern fuel tank joint sewage well and a liquid level switch, the stern fuel tank joint sewage well can be used to collect fuel leaked from the stern fuel tank joint area, and the liquid level switch is arranged at the entrance of the stern fuel tank joint sewage well.

[0010] Optionally, the bow fuel tank joint area module includes a liquid collecting tray, a liquid level switch, a port side sewage well and a starboard side sewage well, the liquid collecting trays are respectively arranged below the port side filling station and below the starboard side filling station, the liquid collecting tray corresponding to the port side filling station is connected with the port side sewage well through a pipeline, and the liquid collecting tray corresponding to the starboard side filling station is connected with the starboard side sewage well through a pipeline, the port side sewage well and the starboard side sewage well can also be used to collect fuel leaked from the bow fuel tank joint area, and the liquid level switches are respectively arranged at the bottom of the liquid collecting tray and at the entrances of the port side sewage well and the starboard side sewage well.

[0011] Optionally, the fuel storage tank module includes a bottom cavity of the storage tank and a liquid level switch arranged in the bottom cavity of the storage tank, the bottom cavity of the storage tank is used to collect fuel leaked from the fuel storage tank, and the liquid level switch is used to monitor leakage of fuel in the fuel storage tank.

[0012] Optionally, the double bottom area includes a double bottom area cavity and a liquid level switch arranged in the double bottom area cavity, the double bottom area cavity is used to collect fuel leaked from the corresponding cabin equipment above the double bottom areas, and the liquid level switch is used to monitor the leakage of fuel in the cabin equipment.

[0013] Optionally, the monitoring and processing system further includes a dilution module, a sampling module and a processing module, wherein the dilution module is used to dilute the collected leaked fuel by injecting water, the sampling module is used to sample and detect the diluted leaked fuel, and the processing module is used to integrate and collect the diluted leaked fuel and perform subsequent processing.

[0014] Optionally, the monitoring and processing system further comprises an alarm system, and the alarm system is used to sound an alarm when a fuel leakage signal is received.

[0015] Optionally, the stern fuel tank bottom water tank is also connected with the fuel daily tank and the oil return part of the fuel daily tank through a pipeline.

[0016] In a ship fuel leakage monitoring and processing system of the present invention, by setting a fuel preparation room module, a fuel daily tank module, a stern fuel tank joint area module, a bow fuel tank joint area module, a fuel storage tank module and a double bottom area module, the fuel preparation room module, the fuel daily tank module, the stern fuel tank joint area module, the bow fuel tank joint area module, the fuel storage tank module and the double bottom area module are respectively used to monitor the fuel preparation room, the fuel daily tank, the stern fuel tank joint area, the bow fuel tank joint area, the fuel storage tank module and the double bottom area where fuel leakage occurs, and collect the leaked fuel, thereby preventing the leaked fuel from affecting the health of the crew and the marine ecological environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the connection principle of the fuel preparation room module in one embodiment of the present invention.

[0018] Figure 2 It is a schematic diagram of the installation of liquid level switches on a liquid supply double-wall pipe and a liquid return double-wall pipe in one embodiment of the present invention;

[0019] Figure 3 is a schematic diagram of the installation of a liquid level switch of a fuel delivery system in one embodiment of the present invention;

[0020] Figure 4 It is a schematic diagram of the connection principle of the fuel daily tank module in one embodiment of the present invention;

[0021] Figure 5 It is a schematic diagram of the module connection in the aft fuel tank joint area in one embodiment of the present invention;

[0022] Figure 6 It is a schematic diagram of the connection principle of the modules in the fore fuel tank joint area in one embodiment of the present invention;

[0023] Figure 7 is a schematic diagram of the distribution of liquid level switches in a fuel storage tank module in one embodiment of the present invention;

[0024] Figure 8 It is a schematic diagram of the distribution of liquid level switches in the double bottom area in one embodiment of the present invention. DETAILED DESCRIPTION

[0025] Refer to the following Figures 1 to 8 To describe a ship fuel leakage monitoring and processing system of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0026] Unless otherwise clearly defined and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0027] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0029] like Figure 1-Figure 8 As shown, an embodiment of the present invention provides a ship fuel leakage monitoring and processing system, including a fuel preparation room module, a fuel daily tank module, a stern fuel tank joint area module, a bow fuel tank joint area module, a fuel storage tank module and a double bottom area module. The fuel preparation room module, the fuel daily tank module, the stern fuel tank joint area module, the bow fuel tank joint area module, the fuel storage tank module and the double bottom area module are respectively used to monitor the fuel preparation room, the fuel daily tank, the stern fuel tank joint area, the bow fuel tank joint area, the fuel storage tank module and the double bottom area where fuel leakage occurs, and collect the leaked fuel. By monitoring all areas of the ship where fuel leakage may occur and collecting the leaked fuel, the leaked fuel can be prevented from affecting the health of the crew and the marine ecological environment.

[0030] In some embodiments of the present invention, the fuel preparation room module includes a liquid collecting tray, a drain pipe, a liquid level switch and a fuel preparation room sewage well. The liquid collecting tray is respectively arranged below the high-pressure pump unit, below the generator, below the main engine and below the fuel supply unit in the fuel preparation room. The drain pipes are respectively arranged at the lowest point of the double-walled pipes of the main engine / generator fuel supply system and the fuel delivery system in the fuel preparation room. The drain pipe is connected to the outer cavity of the corresponding double-walled pipe. The liquid collecting tray and the drain pipe are both connected to the fuel preparation room sewage well through pipelines. The liquid level switch is respectively arranged at the bottom of the liquid collecting tray corresponding to the fuel supply unit, on the side wall of the drain pipe and at the entrance of the fuel preparation room sewage well.

[0031] Specifically, the fuel preparation room is equipped with high-pressure pump units No. 1 to No. 4, generator FVT No. 1 to No. 4, main engine FVT and fuel supply unit. Liquid collection trays are set below the high-pressure pump units No. 1 to No. 4, generator FVT No. 1 to No. 4, main engine FVT and fuel supply unit. When the above equipment leaks fuel, the leaked fuel will flow into the liquid collection tray below. By connecting pipes at the discharge port at the bottom of each liquid collection tray and connecting the pipes to the sewage well of the fuel preparation room, the leaked fuel can be collected in the sewage well of the fuel preparation room. The liquid collection trays in the fuel preparation room are connected to pipes MB001-MB008 respectively, and pipes MB001-MB008 are merged into pipe MB012 to connect to the sewage well of the fuel preparation room. In addition, a hydraulic switch LS012 is set below the liquid collection tray corresponding to the fuel supply unit to monitor the fuel leakage of the fuel supply unit. Since the fuel leakage of No. 1 to No. 4 high-pressure pump units, No. 1 to No. 4 generator FVT and main engine FVT is relatively small, a separate liquid level switch is no longer set. Only a liquid level switch LS011 is set at the entrance of the sewage well in the fuel preparation room, which can also monitor the fuel leakage of No. 1 to No. 4 high-pressure pump units, No. 1 to No. 4 generator FVT and main engine FVT.

[0032] The fuel preparation room also has a main engine / generator fuel supply system and a fuel delivery system, both of which use double-walled pipes for fuel delivery. The main engine / generator fuel supply system includes a liquid supply double-walled pipe and a liquid return double-walled pipe. The liquid supply double-walled pipe and the liquid return double-walled pipe both include generator 1-4 double-walled pipes and main engine double-walled pipes, and are used to supply fuel to generators FVT No. 1 to FVT No. 4 and main engine FVT and return fuel respectively. Drain pipes are set at the lowest points of the liquid supply double-walled pipe and the liquid return double-walled pipe, and one end of the drain pipe is connected to the outer cavity of the double-walled pipe, and the other end is collected to the pipeline MB009 and connected to the sewage well of the fuel preparation room. When fuel leaks from the liquid supply double-walled pipe and the liquid return double-walled pipe, the leaked fuel will flow along the outer cavity of the double-walled pipe to the lowest drain pipe, and flow into the sewage well of the fuel preparation room along the drain pipe, so that the leaked fuel can be collected in the sewage well of the fuel preparation room. Similarly, the fuel transportation system includes the double-walled pipe from the daily fuel tank to the fuel preparation room, the double-walled pipe from the discharge pipe of the fuel supply unit back to the daily fuel tank, and the double-walled pipe from the fuel supply unit back to the daily fuel tank. A drainage pipe is also set at the lowest point of the double-walled pipe from the daily fuel tank to the fuel preparation room, the double-walled pipe from the discharge pipe of the fuel supply unit back to the daily fuel tank, and the double-walled pipe from the fuel supply unit back to the daily fuel tank, and is collected to the pipeline MB010 and connected to the sewage well of the fuel preparation room, so that the fuel leaked from the daily fuel tank to the double-walled pipe of the fuel preparation room, the double-walled pipe from the discharge pipe of the fuel supply unit back to the daily fuel tank, and the double-walled pipe from the fuel supply unit back to the daily fuel tank can be collected in the sewage well of the fuel preparation room. In addition, liquid level switches LS013-LS025 are respectively set on the side walls of each drainage pipe. The fuel leakage of the double-walled pipe can be monitored by the liquid level switch.

[0033] Furthermore, check valves MBV001-MBV003 are respectively provided on pipelines MB009-MB010 and pipeline MB012 to prevent the leaked fuel from flowing back.

[0034] In some embodiments of the present invention, the fuel daily tank module includes a water retaining flat iron, an isolation void tank, a liquid level switch and a stern fuel tank bottom water tank. The isolation void tank is arranged on the upper and lower side walls of the fuel daily tank and near the stern / bow. The water retaining flat iron is arranged around the side wall of the fuel daily tank which is above the deck and is not provided with an isolation void tank, and forms a water retaining flat iron area. The isolation cavity and the water retaining flat iron area are both used to collect fuel leaked from the fuel daily tank. The water retaining flat iron area and the isolation void tank are both connected to the stern fuel tank bottom water tank through pipelines. The liquid level switch is respectively arranged at the bottom of the water retaining flat iron area and the isolation void tank.

[0035] Specifically, an isolation tank is set on the upper, lower and side walls near the stern of the fuel daily tank, and the three side walls of the fuel daily tank are surrounded by the isolation tank. When the fuel leaks from the upper, lower and three side walls near the stern of the fuel daily tank, the leaked fuel will flow into the isolation tank and converge at the bottom of the isolation cavity under the action of gravity for preliminary collection. Therefore, liquid level switches LS005-LS006 are respectively set at both ends of the bottom of the isolation tank to monitor the leakage of the fuel daily tank. At the same time, water-blocking flat irons are set around the other three side walls of the fuel daily tank above the deck and without isolation tanks, and the water-blocking flat irons and the side walls of the fuel daily tank form a water-blocking flat iron area. When the fuel leaks from the water-blocking flat iron side of the fuel daily tank, the leaked fuel will flow into the water-blocking flat iron area for preliminary collection. Therefore, a liquid level switch LS030 is set in the water-blocking flat iron area to monitor the leakage of the fuel daily tank. In addition, the isolation void compartment and the water-blocking flat iron area are connected to the bottom water tank of the stern fuel tank through the pipeline MB014 respectively. The leaked fuel in the isolation void compartment and the water-blocking flat iron area can be transported to the bottom water tank of the stern fuel tank through the pneumatic diaphragm pump MBF002 arranged on the pipeline MB014.

[0036] Furthermore, check valves MBV006, MBV007, MBV010 and MBV017 are provided on the pipeline MB014 to prevent the leaked fuel from flowing back.

[0037] In some embodiments of the present invention, the aft fuel tank joint area module includes an aft fuel tank joint sewage well and a liquid level switch. The aft fuel tank joint sewage well can be used to collect fuel leaked from the aft fuel tank joint area. The liquid level switch is arranged at the entrance of the aft fuel tank joint sewage well.

[0038] Specifically, the stern fuel tank joint area is provided with a stern fuel tank joint sewage well. When fuel leakage occurs in the stern fuel tank joint area, the leaked fuel will flow onto the ship deck and flow into the stern fuel tank joint sewage well along the ship deck, thereby collecting the leaked fuel. In addition, a liquid level switch LS009 is provided at the entrance of the stern fuel tank joint sewage well, and the liquid level switch can be used to monitor whether leakage occurs in the stern fuel tank joint area.

[0039] In some embodiments of the present invention, the bow fuel tank joint area module includes a liquid collecting pan, a liquid level switch, a port side sewage well and a starboard side sewage well. The liquid collecting pans are respectively arranged below the port side filling station and below the starboard side filling station. The liquid collecting pan corresponding to the port side filling station is connected to the port side sewage well through a pipeline, and the liquid collecting pan corresponding to the starboard side filling station is connected to the starboard side sewage well through a pipeline. The port side sewage well and the starboard side sewage well can also be used to collect fuel leaked from the bow fuel tank joint area. The liquid level switches are respectively arranged at the bottom of the liquid collecting pan and at the entrances of the port side sewage well and the starboard side sewage well.

[0040] Specifically, a liquid collecting pan is provided below the port side filling station and the starboard side filling station, respectively. When a fuel leak occurs at the port side filling station, the liquid collecting pan corresponding to the port side filling station will be connected to the port side sewage well through the pipe MB019 connected to the discharge port at the bottom of the liquid collecting pan, and the leaked fuel can be collected through the port side sewage well. Similarly, when a fuel leak occurs at the starboard side filling station, the liquid collecting pan corresponding to the starboard side filling station will be connected to the starboard side sewage well through the pipe MB020 connected to the discharge port at the bottom of the liquid collecting pan, and the leaked fuel can be collected through the starboard side sewage well. The fuel leaked from the bow fuel tank joint area will flow to the port side sewage well and the starboard side sewage well respectively through the decks on both sides of the ship. In addition, liquid level switches LS001 and LS002 are provided at the bottom of the liquid collecting pan corresponding to the port side filling station to monitor the fuel leakage at the port side filling station. Liquid level switches LS003 and LS004 are installed at the bottom of the liquid collection tray corresponding to the starboard filling station to monitor fuel leakage at the starboard filling station. Liquid level switches LS007 and LS008 are installed at the port side sewage well and the starboard side sewage well respectively to monitor fuel leakage in the bow fuel tank joint area.

[0041] In some embodiments of the present invention, the fuel storage tank module includes a storage tank bottom cavity and a liquid level switch arranged in the storage tank bottom cavity. The storage tank bottom cavity is used to collect fuel leaked from the fuel storage tank, and the liquid level switch is used to monitor the leakage of fuel in the fuel storage tank.

[0042] Specifically, when a fuel leak occurs in the fuel storage tank, the leaked fuel will flow into the bottom cavity of the storage tank, thereby collecting the leaked fuel. The bottom cavity of the storage tank can be divided into the bottom cavity of the port storage tank and the bottom cavity of the starboard storage tank. Liquid level switches LS026-LS029 are respectively arranged at the bottom of the bottom cavity of the port storage tank and the bottom cavity of the starboard storage tank, so that the fuel leakage of the fuel storage tank can be monitored.

[0043] In some embodiments of the present invention, the double bottom area includes a double bottom area cavity and a liquid level switch disposed in the double bottom area cavity. The double bottom area cavity is used to collect fuel leaked from corresponding cabin equipment above the double bottom areas. The liquid level switch is used to monitor the leakage of fuel in the cabin equipment.

[0044] Specifically, for some engine rooms, a double bottom area is provided. When the equipment inside the engine room corresponding to the double bottom area leaks fuel, the leaked fuel will flow into the cavity of the double bottom area, thereby collecting the leaked fuel. In addition, a liquid level switch BMF01-BMF02 is provided at the stern and midship of the double bottom area, and two liquid level switches BMF03-BMF04 are provided at the bow of the double bottom area. By providing the liquid level switch, it is possible to monitor whether the equipment in the engine room above the double bottom area leaks fuel.

[0045] In some embodiments of the present invention, the monitoring and processing system further includes a dilution module, a sampling module and a processing module. The dilution module is used to dilute the collected leaked fuel by injecting water. The sampling module is used to sample and detect the diluted leaked fuel. The processing module is used to integrate and collect the diluted leaked fuel and perform subsequent processing.

[0046] Specifically, in the fuel preparation room, clean water is transported to the sewage well of the fuel preparation room through the cabin water supply pipe system, so that the leaked fuel in the sewage well of the fuel preparation room can be diluted. That is, the cabin water supply pipe system is connected to the sewage well of the fuel preparation room through the pipeline MB011, so as to achieve the dilution of the leaked fuel in the sewage well of the fuel preparation room. Furthermore, a check valve MBV004 is provided on the pipeline MB011. In addition, the sewage well of the fuel preparation room is connected to the bottom water tank of the stern fuel tank through the pipeline MB013, and the pneumatic diaphragm pump MBF001 provided on the pipeline MB013 can be used to transport the diluted leaked fuel in the sewage well of the fuel preparation room to the bottom water tank of the stern fuel tank.

[0047] In the stern fuel tank joint area, clean water is transported to the stern fuel tank joint sewage well through the whole ship's living water supply system, so that the leaked fuel in the stern fuel tank joint sewage well can be diluted. That is, the whole ship's living water supply system is connected to the stern fuel tank joint sewage well through the pipeline MB016, so as to achieve the dilution of the leaked fuel in the stern fuel tank joint sewage well. Furthermore, a check valve MBV011 is provided on the pipeline MB016. In addition, the stern fuel tank joint sewage well is connected to the stern fuel tank bottom water tank through the pipeline MB015, and the pneumatic diaphragm pump MBF003 provided on the pipeline MB015 can be used to transport the diluted leaked fuel in the stern fuel tank joint sewage well to the stern fuel tank bottom water tank. Furthermore, check valves MBV012 and MBV014 are provided on the pipeline MB015. At the same time, the leaked fuel in the stern fuel tank bottom water tank can also be diluted through the whole ship's living water supply system. That is, the whole ship's domestic water supply system is connected to the stern fuel tank bottom water tank through the pipeline MB017. The pipeline MB017 is provided with a check valve MBV016.

[0048] After diluting the leaked fuel in the stern fuel tank bottom water tank, the two sampling needle valves MNV001 and MNV002 set on the stern fuel tank bottom water tank can be used to sample and test the leaked fuel in the stern fuel tank bottom water tank to determine whether it meets the safety standards. Furthermore, the two sampling needle valves are used to sample and test the bottom and top of the tank respectively. When the leaked fuel detection in the stern fuel tank bottom water tank meets the standards, the stern fuel tank bottom water tank and the bow fuel tank bottom water tank are connected through the pipeline MB018. The pipeline MB018 is also connected to the pneumatic diaphragm pump MBF003, so the leaked fuel in the stern fuel tank bottom water tank can be transported to the bow fuel tank bottom water tank through the pneumatic diaphragm pump MBF003. Furthermore, the pipeline MB018 is provided with check valves MBV013 and MBV015.

[0049] Similarly, in the bow fuel tank joint area, the leaked fuel in the port side sewage well, starboard side sewage well and bow fuel tank bottom water tank can be diluted through the whole ship's living water supply system, and the connecting pipes are MB022-MB024 respectively. After diluting the leaked fuel in the port side sewage well and starboard side sewage well, it can be transported to the bow fuel tank bottom water tank through the pipe MB021 and the pneumatic diaphragm pump MBF004. And after diluting the leaked fuel in the bow fuel tank bottom water tank, the two sampling needle valves MNV003 and MNV004 set on the bow fuel tank bottom water tank can be used to sample and test the leaked fuel in the bow fuel tank bottom water tank. When the leaked fuel detection in the bow fuel tank bottom water tank meets the standards, the leaked fuel can be discharged to the shore for subsequent treatment through the pneumatic diaphragm pump MBF004.

[0050] In some embodiments of the present invention, the monitoring and processing system further comprises an alarm system, which is used to give an alarm when receiving a signal of fuel leakage.

[0051] Specifically, the alarm system includes a ship's central control and an audible and visual alarm, and the liquid level switch and the audible and visual alarm are electrically connected to the ship's central control. Furthermore, there are multiple audible and visual alarms, which are respectively arranged at the corresponding liquid level switches. When the liquid level switch detects a fuel leak, the liquid level switch will feed back a signal to the ship's central control, and the ship's central control will control the corresponding audible and visual alarm to operate to alert the crew.

[0052] In some embodiments of the present invention, the stern fuel tank bottom water tank is also connected with the fuel daily tank and the oil return part of the fuel daily tank through a pipeline.

[0053] Specifically, the fuel daily tank and the oil return section of the fuel daily tank are respectively converged into the pipeline MB014 through pipelines, and enter the bottom water tank of the stern fuel tank along the pipeline MB014. Furthermore, check valves MBV009 and MBV008 are respectively provided on the pipelines connecting the fuel daily tank and the oil return section of the fuel daily tank with the pipeline MB014. According to process requirements, when there is fuel in the fuel daily tank and the oil return section of the fuel daily tank that needs to be discharged, it can be transported to the bottom water tank of the stern fuel tank through the pneumatic diaphragm pump MBF002, and finally discharged to the shore. Furthermore, a liquid level switch LS010 is provided on the side wall of the oil return section of the fuel daily tank to monitor whether there is fuel in the oil return section of the fuel daily tank.

[0054] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A ship fuel leakage monitoring and processing system, characterized in that: The monitoring and processing system comprises a fuel preparation room module, a fuel daily tank module, a stern fuel tank joint area module, a bow fuel tank joint area module, a fuel storage tank module and a double bottom area module. The fuel preparation room module, the fuel daily tank module, the stern fuel tank joint area module, the bow fuel tank joint area module, the fuel storage tank module and the double bottom area module are respectively used to monitor the areas where fuel leakage occurs in the fuel preparation room, the fuel daily tank, the stern fuel tank joint area, the bow fuel tank joint area, the fuel storage tank module and the double bottom area, and collect the leaked fuel.

2. The ship fuel leakage monitoring and processing system according to claim 1 is characterized in that: The fuel preparation room module includes a liquid collecting tray, a drain pipe, a liquid level switch and a fuel preparation room sewage well. The liquid collecting tray is respectively arranged below the high-pressure pump unit, below the generator, below the main engine and below the fuel supply unit in the fuel preparation room. The drain pipes are respectively arranged at the lowest points of the double-walled pipes of the main engine / generator fuel supply system and the fuel delivery system in the fuel preparation room. The drain pipes are connected to the corresponding outer cavities of the double-walled pipes. The liquid collecting tray and the drain pipe are both connected to the fuel preparation room sewage well through pipelines. The liquid level switches are respectively arranged at the bottom of the liquid collecting tray corresponding to the fuel supply unit, on the side walls of the drain pipe and at the entrance of the fuel preparation room sewage well.

3. The ship fuel leakage monitoring and processing system according to claim 1, characterized in that: The fuel daily tank module includes a water-blocking flat iron, an isolation void tank, a liquid level switch and a stern fuel tank bottom water tank. The isolation void tank is arranged on the upper and lower side walls of the fuel daily tank and near the stern / bow. The water-blocking flat iron is arranged around the side walls of the fuel daily tank which is above the deck and without the isolation void tank, and forms a water-blocking flat iron area. The isolation cavity and the water-blocking flat iron area are both used to collect fuel leaked from the fuel daily tank. The water-blocking flat iron area and the isolation void tank are both connected to the stern fuel tank bottom water tank through pipes. The liquid level switch is respectively arranged at the bottom of the water-blocking flat iron area and the isolation void tank.

4. The ship fuel leakage monitoring and processing system according to claim 1, characterized in that: The aft fuel tank joint area module includes a aft fuel tank joint sewage well and a liquid level switch. The aft fuel tank joint sewage well can be used to collect fuel leaked from the aft fuel tank joint area. The liquid level switch is arranged at the entrance of the aft fuel tank joint sewage well.

5. The ship fuel leakage monitoring and processing system according to claim 1, characterized in that: The bow fuel tank joint area module includes a liquid collecting pan, a liquid level switch, a port side sewage well and a starboard side sewage well. The liquid collecting pans are respectively arranged below the port side filling station and below the starboard side filling station. The liquid collecting pan corresponding to the port side filling station is connected with the port side sewage well through a pipeline, and the liquid collecting pan corresponding to the starboard side filling station is connected with the starboard side sewage well through a pipeline. The port side sewage well and the starboard side sewage well can also be used to collect fuel leaked from the bow fuel tank joint area. The liquid level switches are respectively arranged at the bottom of the liquid collecting pan and at the entrances of the port side sewage well and the starboard side sewage well.

6. The ship fuel leakage monitoring and processing system according to claim 1, characterized in that: The fuel storage tank module includes a storage tank bottom cavity and a liquid level switch arranged in the storage tank bottom cavity, the storage tank bottom cavity is used to collect fuel leaked from the fuel storage tank, and the liquid level switch is used to monitor the leakage of fuel in the fuel storage tank.

7. The ship fuel leakage monitoring and processing system according to claim 1, characterized in that: The double bottom area includes a double bottom area cavity and a liquid level switch arranged in the double bottom area cavity. The double bottom area cavity is used to collect fuel leaked from the corresponding cabin equipment above the double bottom areas, and the liquid level switch is used to monitor the leakage of fuel in the cabin equipment.

8. The ship fuel leakage monitoring and processing system according to claim 1, characterized in that: The monitoring and processing system also includes a dilution module, a sampling module and a processing module. The dilution module is used to dilute the collected leaked fuel by injecting water, the sampling module is used to sample and detect the diluted leaked fuel, and the processing module is used to integrate and collect the diluted leaked fuel and perform subsequent processing.

9. The ship fuel leakage monitoring and processing system according to claim 1, characterized in that: The monitoring and processing system further comprises an alarm system, and the alarm system is used to give an alarm when receiving a signal of fuel leakage.

10. The ship fuel leakage monitoring and processing system according to claim 3, characterized in that: The stern fuel tank bottom water tank is also connected with the fuel daily tank and the oil return part of the fuel daily tank through a pipeline.

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