CN113291412A - Nitrogen system for ship and ship - Google Patents
Nitrogen system for ship and ship Download PDFInfo
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- CN113291412A CN113291412A CN202110730017.2A CN202110730017A CN113291412A CN 113291412 A CN113291412 A CN 113291412A CN 202110730017 A CN202110730017 A CN 202110730017A CN 113291412 A CN113291412 A CN 113291412A
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- Prior art keywords
- pipeline
- nitrogen
- methanol
- tank
- branch line
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
- B63B17/0027—Tanks for fuel or the like ; Accessories therefor, e.g. tank filler caps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/005—Pipe-line systems for a two-phase gas-liquid flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
The invention belongs to the technical field of ships and discloses a nitrogen system for a ship and the ship, which comprises a gas source device capable of providing nitrogen and a pipeline assembly, wherein the pipeline assembly comprises a first pipeline and a second pipeline, one end of the first pipeline is communicated with the gas source device, the second pipeline is provided with a first branch pipeline, a second branch pipeline and a third branch pipeline in parallel, the other end of the first pipeline is communicated with a cargo oil tank, the cargo oil tank can be inerted and supplemented with a first preset pressure, the first branch pipeline is communicated with a daily methanol cabinet and can supplement with a daily methanol cabinet with a second preset pressure, the second branch pipeline can purge a methanol supply unit and a methanol main unit with a third preset pressure, and the third branch pipeline can purge the dual-fuel methanol main unit with a fourth preset pressure. The vessel comprises the nitrogen system for the vessel described above. The nitrogen system for the ship and the ship can be used for inerting and air supplementing of the cargo oil tank, air supplementing and purging of the methanol system and purging of the methanol dual-fuel main engine at the same time.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a nitrogen system for a ship and the ship.
Background
In the prior art, a methanol dual-fuel tanker comprises two sets of nitrogen systems, wherein one set of nitrogen system is used for providing nitrogen for a cargo oil tank to perform inerting and gas supplementing, and the other set of nitrogen system is used for supplementing gas to a fuel tank in the dual-fuel using process and purging equipment and pipelines after the dual-fuel tanker is used. However, two nitrogen systems are provided, which increases the cost of the system equipment and occupies more cabin space.
Disclosure of Invention
One object of the present invention is to provide a nitrogen system for a ship, which can be used for cargo oil tank inerting and gas supplementing, and methanol system gas supplementing and purging, and methanol dual-fuel main engine purging simultaneously, so as to reduce the cost and the occupied space.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a nitrogen system for boats and ships is provided with cargo oil tank, methyl alcohol system and fuel oil system on the boats and ships, methyl alcohol system includes daily cabinet of methyl alcohol, methyl alcohol supply unit and methyl alcohol host computer unit, fuel oil system includes the dual-fuel host computer of methyl alcohol for the nitrogen system of boats and ships includes:
a gas source device capable of providing nitrogen;
the pipeline assembly comprises a first pipeline and a second pipeline, the first pipeline and one end of the second pipeline are communicated with the air source device, a first branch pipeline, a second branch pipeline and a third branch pipeline are arranged on the second pipeline in parallel in a communicated mode, the other end of the first pipeline is communicated with the cargo oil cabin, the cargo oil cabin can be inerted and air-replenishing through first preset pressure, the first branch pipeline is communicated with the daily methanol cabinet, the second preset pressure can be used for supplying air to the daily methanol cabinet, the second branch pipeline can be used for purging through third preset pressure, the methanol supply unit is provided with the methanol host unit, and the third branch pipeline can be purged through fourth preset pressure.
Optionally, the pipeline assembly further comprises a fourth branch pipeline, the second branch pipeline and the third branch pipeline pass through the fourth branch pipeline and are communicated with the second pipeline, the air source device comprises a first air storage tank and a second air storage tank, the first branch pipeline is communicated with the first air storage tank, and the fourth branch pipeline is communicated with the second air storage tank.
Optionally, the air source device further comprises a third air storage tank and a fourth air storage tank, the second branch pipeline is communicated with the third air storage tank, and the third branch pipeline is communicated with the fourth air storage tank.
Optionally, a booster is provided on the fourth branch line, the booster being provided upstream of the third and fourth gas tanks.
Optionally, a first pressure reducing valve is arranged at the downstream of the third gas storage tank, a second pressure reducing valve is arranged at the downstream of the fourth gas storage tank, so that the second branch pipeline outputs nitrogen with the third preset pressure, and the third branch pipeline outputs nitrogen with the fourth preset pressure.
Optionally, the first air storage tank, the second air storage tank, the third air storage tank and the fourth air storage tank are all provided with a monitoring assembly.
Optionally, the gas source device further comprises a nitrogen making device, and the first pipeline and the second pipeline are both communicated with the nitrogen making device.
Optionally, a first control valve is arranged on the first pipeline, and a second control valve is arranged downstream of the first air storage tank.
Optionally, the first control valve and the second control valve are both DBB valves.
The invention also aims to provide the ship, which reduces the cost and facilitates the space arrangement of the ship.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a ship, includes cargo oil tank, methyl alcohol system and fuel oil system, the methyl alcohol system includes methyl alcohol daily cabinet, methyl alcohol supply unit and methyl alcohol host computer unit, fuel oil system includes methyl alcohol dual-fuel host computer, still includes foretell nitrogen system that is used for boats and ships.
The invention has the beneficial effects that:
according to the nitrogen system for the ship, the gas source device can provide nitrogen with different pressures, and the nitrogen system can be simultaneously used for cargo oil tank inerting gas supply, methanol daily cabinet gas supply, methanol supply unit and methanol main unit purging and methanol dual-fuel main unit purging through the pipeline assembly, so that the using number of the gas source device and other equipment is reduced, the structure of the nitrogen system is simplified, the use is convenient, the space of the ship is saved, and the ship operation cost of a shipowner is reduced. Because the pressure of the nitrogen used for cargo oil tank gas replenishing, methanol system gas replenishing and purging and fuel system purging may have difference, the nitrogen is respectively used for providing nitrogen through the first pipeline, the second pipeline, the first branch pipeline, the second branch pipeline and the third branch pipeline so as to conveniently adjust and provide nitrogen with different pressures.
According to the ship provided by the invention, by adopting the nitrogen system for the ship, the structure of the nitrogen system is simplified, the use is convenient, the ship space is saved, the space arrangement of the ship is convenient, and the ship operation cost of a shipowner is reduced.
Drawings
FIG. 1 is a schematic diagram of a nitrogen system for a marine vessel provided by an embodiment of the present invention.
In the figure:
100. a cargo tank; 200. a methanol system; 201. a daily methanol cabinet; 202. a methanol supply unit; 203. a methanol main unit; 300. a methanol dual-fuel host;
11. nitrogen making equipment; 12. a first gas storage tank; 13. a second gas tank; 14. a third gas storage tank; 15. a fourth gas storage tank; 16. a monitoring component; 17. a supercharger; 18. a first pressure reducing valve; 19. a second pressure reducing valve;
21. a first pipeline; 22. a second pipeline; 23. a first branch line; 24. a second branch pipe; 25. a third branch pipeline; 26. a fourth branch pipeline; 27. a second control valve; 28. a first control valve.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The embodiment also provides a ship, wherein the ship is provided with an oil cargo tank 100, a methanol system 200 and a fuel system, and energy conservation and emission reduction are realized through the methanol system 200 and the fuel system. Specifically, the methanol system 200 comprises a methanol daily cabinet 201, a methanol supply unit 202 and a methanol main unit 203, and the fuel system comprises a methanol-fired dual-fuel main unit 300; in order to ensure the transportation safety of the ship and eliminate potential safety hazards, a nitrogen system is also arranged on the ship and is used for supplementing gas to the cargo oil tank 100 and the methanol daily cabinet 201, so that oil products in the cargo oil tank 100 are isolated from the atmosphere, and methanol in the methanol daily cabinet 201 is isolated from the atmosphere, so that explosive mixed gas is prevented from being formed, the use safety is improved, and meanwhile, the volatilization of the oil products and the methanol can be reduced; and purging the methanol supply unit 202, the methanol main unit 203 and the methanol dual-fuel main unit 300 to remove impurities and avoid influencing the use of equipment. In the prior art, two nitrogen systems are included for the cargo tank 100 and the fuel system, respectively, but the cost is high and the space of the tank is large.
In order to solve the above problem, the present embodiment further provides a nitrogen system for a ship, as shown in fig. 1, which includes an air source device and a pipeline assembly; specifically, the gas source device can provide nitrogen gas; the pipeline assembly comprises a first pipeline 21 and a second pipeline 22, one ends of the first pipeline 21 and the second pipeline 22 are communicated with an air source device, and a first branch pipeline 23, a second branch pipeline 24 and a third branch pipeline 25 are arranged on the second pipeline 22 in parallel communication; the other end of the first pipeline 21 is communicated with the cargo oil tank 100, and inerting and air supplementing can be carried out on the cargo oil tank 100 by using first preset pressure; the first branch pipeline 23 is communicated with the daily methanol cabinet 201 and can supplement air for the daily methanol cabinet 201 at a second preset pressure, the second branch pipeline 24 can purge the methanol supply unit 202 and the methanol main unit 203 at a third preset pressure, and the third branch pipeline 25 can purge the methanol dual-fuel main unit 300 at a fourth preset pressure.
The gas source device can provide nitrogen gas of different pressures, can be used for cargo oil tank 100 inerting tonifying qi, the daily cabinet 201 tonifying qi of methyl alcohol, methyl alcohol supply unit 202 and methyl alcohol host computer unit 203 sweep, the two fuel host computer 300 of methyl alcohol sweep simultaneously through the pipeline subassembly, has reduced the use quantity of equipment such as gas source device, has simplified nitrogen gas system's structure, and convenient to use has saved the boats and ships space, has reduced shipowner's boats and ships operation cost. Since there may be differences in the pressure of the nitrogen used for inerting the cargo tank 100, purging the methanol system 200, and purging the fuel system, the first, second, and third branch lines 21, 22, 23, 24, and 25 are used to supply nitrogen, respectively, to facilitate regulation and supply of nitrogen at different pressures.
Optionally, as shown in fig. 1, the gas source device further includes a nitrogen production device 11, the first pipeline 21 and the second pipeline 22 are both communicated with the nitrogen production device 11, and nitrogen produced by the nitrogen production device 11 is transmitted to the cargo tank 100 through the first pipeline 21 and transmitted to the fuel system through the second pipeline 22. Specifically, the nitrogen generating equipment 11 can provide nitrogen with different purities and different pressures according to the use requirements, in the embodiment, the nitrogen generating equipment 11 provides nitrogen with 99% of high purity and the pressure of about 7 bar; in particular nitrogen plant 11, reference is made to the prior art.
Optionally, as shown in fig. 1, the pipeline assembly further includes a fourth branch pipeline 26, the second branch pipeline 24 and the third branch pipeline 25 are communicated with the second pipeline 22 through the fourth branch pipeline 26, and since the pressure of the nitrogen for replenishing the methanol daily cabinet 201 is different from the pressure for purging the fuel, by arranging the fourth branch pipeline 26 to communicate the second branch pipeline 24 and the third branch pipeline 25, the fourth branch pipeline 26 and the second branch pipeline 24 are communicated with the second pipeline 22 in parallel, so as to control the pressure of the nitrogen for replenishing the methanol daily cabinet 201 and the pressure for purging the fuel through the second branch pipeline 24 and the fourth branch pipeline 26 respectively, and control is convenient.
Because nitrogen gas that nitrogen making equipment 11 came out may the pressure unstable, impurity foreign matter such as moisture also may exist, for the stability and the purity that improve nitrogen gas pressure, it is further specific, the air supply device includes first gas holder 12 and second gas holder 13, first branch pipeline 23 and first gas holder 12 intercommunication, the fourth branch pipeline and second gas holder 13 intercommunication, first gas holder 12 and second gas holder 13 are used for methyl alcohol daily cabinet 201 tonifying qi respectively and are used for the fuel to sweep, be used for the nitrogen gas that the storage nitrogen making equipment 11 came out through increasing first gas holder 12 and second gas holder 13, with buffering atmospheric pressure unstable, and enable impurity and obtain the sediment, can reduce nitrogen making equipment 11 host computer and initiate the number of times simultaneously, improve life. Specifically, the first air storage tank 12 and the second air storage tank 13 are respectively provided with a monitoring component 16, which can be carried out according to requirementsThe monitoring assembly 16 adjusts to keep the air pressure within a certain pressure scale. In this embodiment, the nitrogen gas generated by the nitrogen generating apparatus 11 is stored in 2 10m tanks3The nitrogen gas storage tanks are respectively used for the gas supply of the methanol daily cabinet 201 and the purging of the fuel system.
Optionally, as shown in fig. 1, the gas source device further includes a third gas tank 14 and a fourth gas tank 15, the second branch line 24 is communicated with the third gas tank 14, and the third branch line 25 is communicated with the fourth gas tank 15, so as to respectively control the nitrogen to purge the methanol supply unit 202 and the methanol main unit 203 at a third preset pressure, and purge the methanol dual-fuel main unit 300 at a fourth preset pressure, which further facilitates the control.
Alternatively, as shown in fig. 1, a booster 17 is provided on the fourth branch line 26, the booster 17 is provided upstream of the third and fourth gas tanks 14 and 15, and the booster 17 increases the pressure of nitrogen gas entering the third and fourth gas tanks 14 and 15, and reduces the volumes of the third and fourth gas tanks 14 and 15, thereby reducing the occupied space. In this embodiment, the pressure is increased to 30bar by the booster 17, and the third and fourth gas tanks 14 and 15 are each 1m3The pressurized nitrogen is stored in 2 nitrogen gas storage tanks with the length of 1m3In the nitrogen gas storage tank.
Optionally, as shown in fig. 1, a first pressure reducing valve 18 is disposed downstream of the third air tank 14, a second pressure reducing valve 19 is disposed downstream of the fourth air tank 15, so that the second branch line 24 outputs nitrogen gas having a third preset pressure, the third branch line 25 outputs nitrogen gas having a fourth preset pressure, and the first pressure reducing valve 18 and the second pressure reducing valve 19 enable the second branch line 24 and the third branch line 25 to output nitrogen gas having corresponding pressures, respectively, to meet the use requirement and facilitate control of the pressure value. In this embodiment, after the pressure is reduced to 10bar by the first pressure reducing valve 18 and the second pressure reducing valve 19, the purging is respectively performed on the methanol supply unit 202 and the methanol main unit 203, and the purging is performed on the methanol dual-fuel main unit 300.
Optionally, as shown in fig. 1, monitoring components 16 are disposed on the first air tank 12, the second air tank 13, the third air tank 14 and the fourth air tank 15, and each monitoring component 16 performs control and adjustment of nitrogen gas according to requirements, so as to keep the air pressure within a certain pressure scale. Specifically, the monitoring assembly 16 includes a pressure sensor, a safety valve, a blow-down valve, a pressure gauge; specifically, the pressure sensor can display and monitor the pressure in real time to ensure that the pressure of the output nitrogen meets the requirement; more specifically, the pressure sensors on the third air storage tank 14 and the fourth air storage tank 15 are both electrically connected with the supercharger 17, when the pressure sensors detect that the internal pressure is lower than a preset value, the pressure sensors are triggered and feed back a trigger signal to the control system, the control system can automatically control the supercharger 17 to start, when the pressure sensors detect that the internal pressure reaches the preset value, the pressure sensors are triggered and feed back the trigger signal to the control system, and the control system can automatically control the supercharger 17 to stop; when the gas storage tank has overpressure, the safety valve can be automatically opened, so that the safety of the gas storage tank is protected constantly; the pressure gauge is used for displaying the pressure in the air storage tank; the blowoff valve sets up in jar body bottom, can regularly discharge the internal impurity of jar.
Optionally, as shown in fig. 1, a first control valve 28 is disposed on the first pipeline 21, so that on-off control of the first pipeline 21 can be performed, isolation between the air source device and the cargo oil tank 100 is realized, and safety in use is improved; the cargo oil tank 100 is automatically supplemented with air through the first control valve 28, so that the control is convenient; in this embodiment, the first control valve 28 is a DBB valve, which can provide isolation in the upstream and downstream directions even at high temperature or high pressure, and has a good isolation effect, thereby further improving the isolation between the air source device and the cargo tank 100 and improving the safety in use.
Optionally, as shown in fig. 1, a second control valve 27 is disposed downstream of the first gas storage tank 12, so that on-off control of the first branch pipeline 23 can be performed, isolation between the gas source device and the methanol domestic cabinet 201 is realized, and safety in use is improved; the methanol daily cabinet 201 is automatically supplied with air through the second control valve 27, so that the control is convenient; in this embodiment, the second control valve 27 is a DBB valve, which, in the same way, further improves the isolation effect between the air source device and the methanol daily cabinet 201, and improves the safety in use.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a nitrogen gas system for boats and ships, is provided with cargo oil tank (100), methyl alcohol system (200) and fuel oil system on the boats and ships, methyl alcohol system (200) include methyl alcohol daily cabinet (201), methyl alcohol supply unit (202) and methyl alcohol host computer unit (203), fuel oil system includes methyl alcohol dual fuel host computer (300), its characterized in that for the nitrogen gas system of boats and ships includes:
a gas source device capable of providing nitrogen;
a pipeline assembly comprising a first pipeline (21) and a second pipeline (22), one end of the first pipeline (21) and one end of the second pipeline (22) are communicated with the air source device, a first branch pipeline (23), a second branch pipeline (24) and a third branch pipeline (25) are arranged on the second pipeline (22) in parallel communication, the other end of the first pipeline (21) is communicated with the cargo oil tank (100) and can supply air for inerting the cargo oil tank (100) at a first preset pressure, the first branch pipeline (23) is communicated with the methanol daily cabinet (201) and can supply air to the methanol daily cabinet (201) at a second preset pressure, the second branch line (24) is capable of purging the methanol supply unit (202) and the methanol main unit (203) at a third preset pressure, the third branch line (25) is capable of purging the methanol dual fuel host (300) at a fourth preset pressure.
2. Nitrogen system for a ship according to claim 1, characterized in that said line assembly further comprises a fourth branch line (26), said second branch line (24) and said third branch line (25) being in communication with said second line (22) through said fourth branch line (26), said air supply means comprising a first tank (12) and a second tank (13), said first branch line (23) being in communication with said first tank (12), said fourth branch line being in communication with said second tank (13).
3. Nitrogen system for a marine vessel according to claim 2, wherein said gas source means further comprise a third tank (14) and a fourth tank (15), said second branch line (24) being in communication with said third tank (14), said third branch line (25) being in communication with said fourth tank (15).
4. A nitrogen system for a ship according to claim 3, characterized in that a booster (17) is provided on the fourth branch line (26), the booster (17) being provided upstream of the third and fourth gas tanks (14, 15).
5. Nitrogen system for a marine vessel according to claim 4, wherein downstream of said third tank (14) a first pressure reducing valve (18) is provided, downstream of said fourth tank (15) a second pressure reducing valve (19) is provided, so that said second branch line (24) outputs nitrogen having said third preset pressure, and said third branch line (25) outputs nitrogen having said fourth preset pressure.
6. Nitrogen system for a marine vessel according to claim 4 or 5, wherein said first (12), second (13), third (14) and fourth (15) gas tanks are each provided with a monitoring assembly (16).
7. Nitrogen system for a marine vessel according to any one of claims 1-5, wherein the gas source arrangement further comprises a nitrogen plant (11), the first pipe (21) and the second pipe (22) both being in communication with the nitrogen plant (11).
8. Nitrogen system for a marine vessel according to any one of claims 2-5, wherein a first control valve (28) is arranged on the first line (21) and a second control valve (27) is arranged downstream of the first tank (12).
9. Nitrogen system for a marine vessel according to claim 8, wherein the first control valve (28) and the second control valve (27) are DBB valves.
10. A marine vessel comprising a cargo tank (100), a methanol system (200) and a fuel system, the methanol system (200) comprising a methanol day tank (201), a methanol supply unit (202) and a methanol main unit (203), the fuel system comprising a methanol dual fuel main (300) and further comprising a nitrogen system for a marine vessel according to any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110730017.2A CN113291412B (en) | 2021-06-29 | 2021-06-29 | Nitrogen system for ship and ship |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110730017.2A CN113291412B (en) | 2021-06-29 | 2021-06-29 | Nitrogen system for ship and ship |
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| CN113291412A true CN113291412A (en) | 2021-08-24 |
| CN113291412B CN113291412B (en) | 2022-05-13 |
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| CN114635815A (en) * | 2022-04-01 | 2022-06-17 | 招商局重工(深圳)有限公司 | Methanol fuel supply system and control method thereof |
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| CN115092331A (en) * | 2022-06-30 | 2022-09-23 | 广船国际有限公司 | Dual-fuel container ship |
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| CN113291412B (en) | 2022-05-13 |
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