CN110861749B - Ship methanol tank structure and application method thereof - Google Patents
Ship methanol tank structure and application method thereof Download PDFInfo
- Publication number
- CN110861749B CN110861749B CN201911113706.8A CN201911113706A CN110861749B CN 110861749 B CN110861749 B CN 110861749B CN 201911113706 A CN201911113706 A CN 201911113706A CN 110861749 B CN110861749 B CN 110861749B
- Authority
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- China
- Prior art keywords
- methanol
- cabin
- liquid level
- methanol tank
- digital display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 246
- 238000000034 method Methods 0.000 title claims description 12
- 239000007788 liquid Substances 0.000 claims abstract description 28
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000001301 oxygen Substances 0.000 claims abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 20
- 239000011261 inert gas Substances 0.000 claims description 14
- 238000009423 ventilation Methods 0.000 claims description 12
- 230000000007 visual effect Effects 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 108010066057 cabin-1 Proteins 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B11/00—Interior subdivision of hulls
- B63B11/04—Constructional features of bunkers, e.g. structural fuel tanks, or ballast tanks, e.g. with elastic walls
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention aims to provide a ship methanol tank structure which is reasonable in design, intelligent in monitoring and high in safety performance. The methanol cabin is internally provided with a pressure sensor electrically connected with the vacuum pressure digital display meter, a plurality of liquid level sensors in one-to-one correspondence with the liquid level digital display meter and a plurality of oxygen concentration sensors in one-to-one correspondence with the oxygen concentration digital display meter, wherein the pressure sensor, the liquid level sensors and the oxygen concentration sensors are electrically connected with the audible-visual alarm. The invention is applied to the technical field of ships.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a methanol tank structure of a ship and a using method thereof.
Background
On a ship for transporting methanol or a ship taking methanol as a fuel of a marine engine, due to the characteristics of low flash point, easy volatilization, toxicity and the like of the methanol, the design of the methanol tank should be provided with measures of breakage resistance, explosion resistance, toxicity resistance and the like.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing the ship methanol tank structure which is reasonable in design, intelligent in monitoring and high in safety performance.
The technical scheme adopted by the invention is as follows: the methanol cabin is internally provided with a pressure sensor electrically connected with the vacuum pressure digital display meter, a plurality of liquid level sensors in one-to-one correspondence with the liquid level digital display meter and a plurality of oxygen concentration sensors in one-to-one correspondence with the oxygen concentration digital display meter, wherein the pressure sensor, the liquid level sensors and the oxygen concentration sensors are electrically connected with the audible-visual alarm.
Further, a protective device is arranged on the periphery of the methanol cabin, and one or two of an isolation empty cabin and a protective coaming are/is adopted by the protective device to effectively protect the methanol cabin.
Further, the distance between the methanol cabin and the floor is not less than 760mm, and the distance between the methanol cabin and the protection device is not less than 800 mm.
Further, the inerting system comprises an inert gas tank and an inert gas pipeline communicated with the inert gas tank, wherein the inert gas pipeline is connected with the methanol cabin through a remote control valve, and the inert gas pipeline is used for flushing inert gas into the methanol cabin so as to ensure that the concentration of oxygen in the cabin is always maintained within a safe value; the remote control valve is arranged to facilitate quick opening of the valve.
Further, the methanol cabin is connected with the methanol injection pipe through an electromagnetic valve, and the electromagnetic valve is convenient to open the valve quickly.
Further, the inlet of the PV valve is at least 2 meters above the weather deck, which is designed to be safe and easy to maintain.
Further, the liquid level sensors comprise a high liquid level sensor and a low liquid level sensor, and the liquid level sensors are arranged to monitor the liquid level height in the methanol cabin.
The application method of the methanol tank structure of the ship comprises the following steps:
s1, the methanol cabin is arranged in a double-layer hull, and is not less than 760mm away from the floor and not less than 800mm away from the side;
s2, the air inlet of the PV valve is at least 2 meters higher than the weather deck;
s3, when the length of the methanol cabin is smaller than 7 meters, the number of the ventilation pipelines is at least one; when the length of the methanol cabin is more than 7 meters, the number of the ventilation pipelines is at least two;
and S4, the opening pressure of the vacuum release valve is not lower than 0.007MPa under the atmospheric pressure.
When the protecting device is arranged between the methanol cabin and the side, the distance between the methanol cabin and the protecting device is not less than 800 mm.
The invention has the following beneficial effects:
the methanol cabin is subjected to liquid level control, ventilation, pressure control and oxygen concentration control, namely, the control is realized in all aspects, so that accidents such as leakage poisoning or explosion fire disaster are prevented.
Drawings
Fig. 1 is a schematic diagram of the principles of the present invention.
Detailed Description
As shown in fig. 1, in this embodiment, the present invention includes a methanol tank 1, a plurality of inerting systems 2 each in communication with the methanol tank 1, and at least one ventilation pipeline in communication with the methanol tank 1, where the methanol tank 1 is provided with an audible and visual alarm 4, a PV valve 5, a vacuum pressure digital display meter 6, a plurality of liquid level digital display meters 7, and a plurality of oxygen concentration digital display meters 8, the methanol tank 1 is internally provided with a pressure sensor 9 in electrical signal connection with the vacuum pressure digital display meter 6, a plurality of liquid level sensors 10 in one-to-one correspondence with the liquid level digital display meters 7, and a plurality of oxygen concentration sensors 11 in one-to-one correspondence with the oxygen concentration digital display meters 8, and the pressure sensor 9, the liquid level sensors 10, and the oxygen concentration sensors 11 are all in electrical signal connection with the audible and visual alarm 4. Meanwhile, a protecting device 3 is arranged on the periphery of the methanol cabin 1, and the protecting device 3 is one or two of an isolation empty cabin and a protecting coaming, so that the methanol fuel tank is protected from damage caused by accidental collision. The methanol cabin 1 and the attached pipes and the valve accessories are made of one or more of corrosion-resistant austenitic stainless steel, duplex stainless steel or composite steel plates, and the nonmetallic materials are made of one or more of fluorinated rubber, neoprene or ethylene propylene rubber, so that methanol can be effectively prevented from being dissolved or corroded, and in addition, a temperature sensor can be additionally arranged to monitor the temperature inside and outside the cabin according to the requirement.
In this embodiment, the methanol tank 1 is connected to the methanol injection pipe 15 through a solenoid valve 14.
In this embodiment, the inlet of the PV valve 5 is at least 2 meters above the weather deck to limit the pressure and vacuum that may occur in the methanol compartment 1. The air inlet of the PV valve 5 is at least 2 meters higher than the exposed deck, is safe in position and easy to check, takes measures to prevent seawater from entering, and can also prevent flames from entering the methanol tank 1; the opening pressure of the PV valve 5 is not lower than 0.007MPa at atmospheric pressure.
In this embodiment, the plurality of liquid level sensors 10 includes a high liquid level sensor and a low liquid level sensor.
In this embodiment, the ventilation pipeline of the methanol tank 1 is provided with sufficient redundancy to prevent possible overpressure and vacuum, and the methanol tank 1 with a length of 7 meters or less may be provided with only one ventilation pipeline, and the methanol tank 1 with a length of more than 7 meters should be provided with two ventilation pipelines.
Further, in this embodiment, the number of the inerting systems 2 is two, the inerting systems 2 include an inert gas tank and an inert gas pipeline 12 that is connected with the inert gas tank, the inert gas pipeline 12 is connected with the methanol tank 1 through a remote control valve 13, the oxygen concentration sensor 11 disposed in the methanol tank 1 is electrically connected with the remote control valve 13 of the inerting systems 2, when the oxygen concentration in the methanol tank 1 reaches a set value, the two sets on the methanol tank 1 are automatically opened, the inerting systems 2 automatically supply gas to the methanol tank 1 for inerting, and when the concentration reaches a set low value, the inerting is automatically stopped. Two sets of said inerting systems 2 are provided to increase redundancy and ensure the safety of the tanks. When the remote control valve 13 of the methanol tank 1 for controlling inerting fails, the oxygen concentration in the methanol tank 1 can rise to the set value of the oxygen concentration sensor 11, and the audible and visual alarm 4 can manually inerte the methanol tank 1 after giving an alarm.
Still further, in this embodiment, the methanol tank 1 is provided with a high level sensor and a low level sensor, and when the set value of the level sensor 10 is reached during the methanol filling process, the audible and visual annunciator 4 sends a signal to the background control system to stop the methanol filling. When the liquid level sensor 10 fails, that is, the audible and visual alarm 4 cannot be triggered, the high liquid level sensor 10 is used as redundancy of high-level alarm, so that safety of methanol injection is ensured.
The application method of the methanol tank structure of the ship comprises the following steps:
s1, the methanol cabin 1 is arranged in a double-layer hull, and is not less than 760mm away from the floor and not less than 800mm away from the side;
s2, the air inlet of the PV valve 5 is at least 2 meters higher than the weather deck;
s3, when the length of the methanol cabin 1 is smaller than 7 meters, the number of the ventilation pipelines is at least one; when the length of the methanol cabin 1 is more than 7 meters, the number of the ventilation pipelines is at least two;
and S4, the opening pressure of the vacuum release valve is not lower than 0.007MPa under the atmospheric pressure.
When the guard 3 is provided between the methanol tank 1 and the side, the distance between the methanol tank 1 and the guard 3 is not less than 800 mm.
The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, and yet fall within the scope of the invention.
Claims (6)
1. The application method of the methanol tank structure of the ship is characterized by comprising the following steps of: the methanol tank comprises a methanol tank (1), a plurality of inerting systems (2) which are all communicated with the methanol tank (1) and at least one ventilation pipeline which is communicated with the methanol tank (1), wherein an audible and visual alarm (4), a PV valve (5), a vacuum pressure digital display meter (6), a plurality of liquid level digital display meters (7) and a plurality of oxygen concentration digital display meters (8) are arranged on the methanol tank (1), a pressure sensor (9) which is electrically connected with the vacuum pressure digital display meters (6), a plurality of liquid level sensors (10) which are in one-to-one correspondence with the liquid level digital display meters (7) and a plurality of oxygen concentration sensors (11) which are in one-to-one correspondence with the oxygen concentration digital display meters (8) are arranged in the methanol tank (1), and the pressure sensor (9), the liquid level sensors (10) and the oxygen concentration sensors (11) are all electrically connected with the audible and visual alarm (4); the using method comprises the following steps:
s1, the methanol cabin (1) is arranged in a double-layer ship shell, and is not less than 760mm away from the floor and not less than 800mm away from the side;
s2, the air inlet of the PV valve (5) is at least 2 meters higher than the weather deck;
s3, when the length of the methanol cabin (1) is smaller than 7 meters, the number of the ventilation pipelines is at least one; when the length of the methanol cabin (1) is more than 7 meters, the number of the ventilation pipelines is at least two;
and S4, the opening pressure of the vacuum release valve is not lower than 0.007MPa under the atmospheric pressure.
2. The method of using a marine methanol tank structure of claim 1, wherein: the periphery of the methanol cabin (1) is provided with a protecting device (3), and the protecting device (3) adopts one or two of an isolation empty cabin and a protecting coaming.
3. The method of using a marine methanol tank structure of claim 1, wherein: the inerting system (2) comprises an inert gas tank and an inert gas pipeline (12) communicated with the inert gas tank, and the inert gas pipeline (12) is connected with the methanol cabin (1) through a remote control valve (13).
4. The method of using a marine methanol tank structure of claim 1, wherein: the methanol cabin (1) is connected with a methanol injection pipe (15) through an electromagnetic valve (14).
5. The method of using a marine methanol tank structure of claim 1, wherein: the plurality of liquid level sensors (10) comprise a high liquid level sensor and a low liquid level sensor.
6. The method of using a marine methanol tank structure of claim 2, wherein: the protection device (3) is arranged between the methanol cabin (1) and the side, and the distance between the methanol cabin (1) and the protection device (3) is not less than 800 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911113706.8A CN110861749B (en) | 2019-11-14 | 2019-11-14 | Ship methanol tank structure and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911113706.8A CN110861749B (en) | 2019-11-14 | 2019-11-14 | Ship methanol tank structure and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110861749A CN110861749A (en) | 2020-03-06 |
| CN110861749B true CN110861749B (en) | 2023-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911113706.8A Active CN110861749B (en) | 2019-11-14 | 2019-11-14 | Ship methanol tank structure and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110861749B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111469979A (en) * | 2020-04-28 | 2020-07-31 | 广船国际有限公司 | Dual-fuel driven ship |
| CN113264174A (en) * | 2021-06-29 | 2021-08-17 | 广船国际有限公司 | Pipeline system with dirty oil tank serving as methanol storage tank and methanol dual-fuel ship |
| CN113291412B (en) * | 2021-06-29 | 2022-05-13 | 广船国际有限公司 | Nitrogen system for ship and ship |
| CN117382829A (en) * | 2023-10-12 | 2024-01-12 | 广船国际有限公司 | Ship methanol fuel safety system |
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| CN211167288U (en) * | 2019-11-14 | 2020-08-04 | 江龙船艇科技股份有限公司 | Methanol cabin cabinet structure of ship |
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2019
- 2019-11-14 CN CN201911113706.8A patent/CN110861749B/en active Active
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Also Published As
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| CN110861749A (en) | 2020-03-06 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Structure and Usage Method of Methanol Cabinets in Ships Effective date of registration: 20231031 Granted publication date: 20230926 Pledgee: Guangfa Bank Co.,Ltd. Zhongshan Branch Pledgor: JIANGLONG SHIPBUILDING Co.,Ltd. Registration number: Y2023980063287 |
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