CN116552699B - Self-pressurizing LNG liquid tank of dual-fuel ship - Google Patents
Self-pressurizing LNG liquid tank of dual-fuel ship Download PDFInfo
- Publication number
- CN116552699B CN116552699B CN202310647423.1A CN202310647423A CN116552699B CN 116552699 B CN116552699 B CN 116552699B CN 202310647423 A CN202310647423 A CN 202310647423A CN 116552699 B CN116552699 B CN 116552699B
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- Prior art keywords
- tank
- wall
- fixedly connected
- oil tank
- gas
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- 239000000446 fuel Substances 0.000 title claims abstract description 50
- 239000007788 liquid Substances 0.000 title claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims description 25
- 230000003139 buffering effect Effects 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims description 9
- 230000009977 dual effect Effects 0.000 claims description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000007787 solid Substances 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 117
- 239000007789 gas Substances 0.000 description 102
- 239000003949 liquefied natural gas Substances 0.000 description 23
- 238000007599 discharging Methods 0.000 description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 238000003860 storage Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 5
- 238000000151 deposition Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000126 substance Substances 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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 discloses a self-pressurizing LNG liquid tank of a dual-fuel ship, which belongs to the technical field of marine equipment and comprises an outer-layer oil tank, wherein a vacuum tank is arranged at the inner side of the outer-layer oil tank, a gas tank is fixedly connected between two parallel inner walls of the vacuum tank, a fixed base is arranged at the lower position of the outer-layer oil tank, a fixed connection structure is arranged between the fixed base and the outer-layer oil tank, and a hot pressurizing structure is arranged at the outer wall position of the gas tank. According to the invention, the outer oil tank and the air pipe are sleeved, so that the oil tank and the LNG tank of the dual-fuel ship have small occupied area, the inertia generated when the oil in the outer oil tank shakes can be effectively buffered, the inner side of the outer oil tank and the outer side of the vacuum tank are cleaned, the achievement of solid impurities is avoided, the oil can be preheated, the problem that the ship is difficult to burn or insufficient to burn when running to a low-temperature area is effectively avoided, the pressure in the gas tank can be increased in a tail gas heating mode when the pressure in the gas tank is small, and sufficient gas supply is ensured.
Description
Technical Field
The invention belongs to the technical field of marine equipment, and particularly relates to a self-pressurizing LNG liquid tank of a dual-fuel ship.
Background
The LNG tank of a dual-fuel ship is a ship using a dual-fuel engine as a main power, and an LNG tank is installed on the ship to store Liquefied Natural Gas (LNG). LNG is a clean energy source obtained by liquefying natural gas through deep freezing, has the advantages of high energy density, low emission, environmental protection and the like, and is widely applied to the ship industry. Dual fuel engines can be powered in two different ways, namely using Liquefied Natural Gas (LNG) or conventional fuel oil (e.g. diesel), which enables the vessel to maintain flexibility while reducing environmental impact.
LNG tanks are typically mounted on the deck of a ship with corresponding piping and valving systems connected to the dual fuel engine to deliver LNG to the engine for combustion. The LNG tank needs to maintain a liquid state at an extremely low temperature, and safety problems such as leakage and explosion are required to be prevented, and the LNG tank for the dual-fuel ship has the advantage of reducing environmental pollution, and can reduce emission of harmful substances such as carbon dioxide, nitrogen oxides, particulate matters and the like in navigation.
In the prior art, an LNG liquid tank is hung at a base position on a ship after welding is finished and is fixed through a bolt, or is directly fixed through a welding method, so that tank shaking caused by shaking when a ship runs is avoided, but the tank is inconvenient to maintain, overhaul or replace due to the two connecting modes, the disassembly efficiency is low, an oil tank and a gas pipe of a dual-fuel ship are arranged separately and are horizontally placed on a cabin or a deck, the area of the dual-tank occupies the ship is large, when the liquid gas usage amount in an LEN liquid tank is gradually reduced, a part of gas supply structure is used for discharging low-pressure gas by increasing a turbine structure, the concentration of spheres is met, the turbine structure is required to be independently arranged, the cost is high, and the traditional oil in a low-temperature area is required to be added with antifreezing agent when in use, otherwise the oil pipeline can be frozen.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide the LNG liquid tank which is quick, simple and convenient to detach and can be self-pressurized.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a dual fuel boats and ships are from pressurizing LNG fluid reservoir, includes outer oil tank, outer oil tank inboard position is provided with the vacuum tank, fixedly connected with gas pitcher between the two parallel inner walls of vacuum tank, outer oil tank below position is provided with fixed base, be provided with fixed connection structure between fixed base and the outer oil tank, gas pitcher outer wall position is provided with hot pressurization structure.
Through above-mentioned technical scheme, can store the fuel through outer oil tank, the gas pitcher can store the liquefied gas, realizes the fuel storage of dual fuel boats and ships, and fixed base can be fixed spacing to outer oil tank.
The hot pressurizing structure comprises a spiral-shaped pressurizing coil pipe, the pressurizing coil pipe is fixedly connected with the outer wall of the gas tank, a first shunt pipe is connected with the gas inlet position pipeline of the pressurizing coil pipe, the first shunt pipe is fixedly connected with the outer wall of the vacuum tank and the outer wall of the outer oil tank in a penetrating mode, an exhaust pipe is connected with the gas outlet position pipeline of the pressurizing coil pipe, and the exhaust pipe is fixedly connected with the outer wall of the vacuum tank and the outer wall of the outer oil tank in a penetrating mode.
Through the technical scheme, the tail gas of the engine can be collected and discharged through the pressurizing coil pipe, heat is conducted to the outer wall of the gas tank at the position of the pressurizing coil pipe, the temperature in the gas tank is increased to some extent, the gas pressure in the gas tank is improved, the tail gas can be led into the outer side of the gas tank or the outer oil tank through the tail gas of the first shunt pipe, the liquefied gas of the gas tank or the fuel in the outer oil tank is preheated, and the tail gas in the first shunt pipe and the pressurizing coil pipe can be conveyed through the exhaust pipe and is discharged at the position of the second shunt pipe.
The fixed connection structure includes a plurality of bottom block structures and a plurality of block regulation structure, and is a plurality of bottom block structure is located fixed base surface position, a plurality of block regulation structure and outer oil tank outer wall bottom position fixed connection, and correspond the block regulation structure block fixed connection of position bottom block structure and corresponding position, be provided with the buffering clearance structure between outer oil tank inboard and the vacuum tank outside.
Further, the buffering clearance structure includes a plurality of evenly distributed's desilting buffer board, desilting buffer board outside and the inboard sliding connection of outer oil tank, desilting buffer board inboard and vacuum tank outer wall sliding connection, a plurality of fixedly connected with a plurality of evenly distributed's buffer spring between the desilting buffer board, a plurality of buffer spring is the pressure spring material.
Through above-mentioned technical scheme, the desilting buffer board can rock back and forth when boats and ships are rocked, avoids the solid impurity deposit in the fuel, and the inertia that produces when the oil rocked can be buffered effectively by the buffer hole of desilting buffer board position simultaneously, avoids inertial force too big to cause the damage to the outer oil tank, and buffer spring realizes that the desilting buffer board slides back and forth when the oil rocked.
Further, the both ends position of vacuum tank outer wall all runs through fixedly connected with and blocks the spacing ring, block spacing ring outer wall position block fixedly connected with and support the baffle ring, support and keep off the ring lateral wall position and run through and offered a plurality of evenly distributed's oil guide hole, support and keep off the ring and be aluminum alloy material, support and keep off ring outer wall and outer oil tank inner wall fixed connection.
Through above-mentioned technical scheme, block the spacing ring and can avoid dredging the buffer board and slide in vacuum tank position and drop to fix the vacuum tank in outer oil tank inboard through supporting the baffle ring, and support the baffle ring and block through bolted connection between the spacing ring, conveniently dismantle the maintenance, the oil guide hole conveniently realizes the effect of buffering inertia, and the aluminum alloy material is hard, and light in weight.
Further, a plurality of evenly distributed buffer holes are formed in the outer wall of the dredging buffer plate in a penetrating mode.
Through the technical scheme, the buffer holes can effectively release energy and buffer the inertia generated by the oil in shaking, and normal extraction and use of the oil are not affected.
Further, the first shunt tubes are located the outer part of the vacuum tank, the second electromagnetic valve is arranged close to the outer wall of the vacuum tank, and the first electromagnetic valve is arranged at the outer part of the outer oil tank of the exhaust pipe.
Through above-mentioned technical scheme, can realize filling tail gas into first shunt tubes position through the second solenoid valve to hold back in vacuum tank outside position, make the part that first shunt tubes is located between outer oil tank and the vacuum tank generate heat, preheat the oil, the oil burning that causes under the low temperature environment is avoided or the effect of ignition difficulty, can avoid tail gas directly to follow blast pipe position backward flow when discharging from the second shunt tubes position through setting up first solenoid valve, avoid leading to oil or natural gas to be heated by mistake.
Further, a second three-way valve is arranged on the outer side of the outer-layer oil tank, one interface of the second three-way valve is connected with the first shunt pipe through a pipeline, the other two interfaces of the second three-way valve are respectively connected with a second shunt pipe and an air inlet pipe, and the second shunt pipe is connected with an exhaust pipe through a pipeline.
Through the technical scheme, the hot tail gas generated by the ship engine can be collected and conveyed by the air inlet pipe, the hot tail gas is directly discharged by the second shunt pipe, and the oil or natural gas can be preheated by the hot tail gas by the first shunt pipe.
Further, a third three-way valve is arranged at the center of one end of the gas tank, the third three-way valve is in penetrating arrangement with the end face of the outer oil tank, one interface of the third three-way valve is connected with the end face of the outer oil tank through a pipeline, two other interfaces of the third three-way valve are respectively connected with a fuel filling pipe and a fuel discharging pipe through pipelines, a gasifier is fixedly connected to the upper surface of the fixing base, a first three-way valve is arranged at the center of one end of the outer oil tank far away from the third three-way valve, one interface of the first three-way valve is in penetrating and fixedly connected with the gas tank through a pipeline, two other interfaces of the first three-way valve are respectively connected with a gas supply pipeline and a gas discharging pipeline through pipelines, and one end of the gas discharging pipeline far away from the first three-way valve is connected with a liquid inlet pipeline of the gasifier.
Through the technical scheme, the oil filling pipe can be used for filling oil into the outer-layer oil tank for storage through the third three-way valve, the stored oil is discharged through the oil discharge pipe and is supplied to the ship engine for use, the gas in the gas tank can be gasified through the gasifier and is supplied to the ship engine for use, the liquefied gas in the gas tank is discharged and conveyed into the gasifier through the exhaust pipeline, and the liquefied gas is conveyed into the gas tank through the gas supply pipeline for storage.
Further, the bottom clamping structures comprise clamping grooves, the center positions of the inner walls of the clamping grooves are fixedly connected with supporting columns, the center positions of the upper surfaces of the supporting columns are fixedly connected with sliding columns, the top positions of the sliding columns are fixedly connected with top blocks, the upper surfaces of the top blocks are in arc-shaped arrangement, and the outer wall positions of the sliding columns are slidably connected with sliding blocks.
Further, a plurality of block regulation structure includes the backup pad, backup pad and outer oil tank outer wall fixed connection, backup pad outer wall position runs through sliding connection and dials the cover, stir cover lower surface central point put and offered the fixed slot, reset chamber has been offered to fixed slot lateral wall position, reset chamber inner wall position sliding connection has fixed bolt, fixedly connected with reset spring between fixed bolt and the reset chamber inner wall, reset spring is the pressure spring, the backup pad is located fixed slot one end fixedly connected with stopper.
Through the technical scheme, the outer oil tank is placed on the surface position of the fixed base through hoisting, the support column is inserted into the fixed groove, the fixed bolt is clamped at the position below the top block, the outer oil tank can be clamped and fixed, when disassembly is needed, the fixed bolt is pressed downwards to stir the sleeve, the fixed bolt is pressed into the reset cavity under the action of the arc surface of the sliding block, the sliding block slides upwards, the stirring sleeve is rapidly lifted up to enable the stirring sleeve to be slipped out of the clamping groove, namely the fixed bolt is moved to the position above the top block, and the fixation of the outer oil tank by canceling the fixed connection structure can be realized.
Further, the fixed base upper surface is located the equal fixedly connected with of outer oil tank both sides position and inserts and close the fixture block, and is a plurality of insert and close the fixture block upper surface position and seted up run-through slide hole, be provided with the fixed bandage between two insert and close the fixture block of corresponding position, fixed bandage runs through sliding connection with the run-through slide hole of corresponding position, a plurality of insert and close the fixture block lateral wall position and run through threaded connection has and supports tight knob, support tight knob and the fixed bandage of corresponding position and support tightly.
Through the technical scheme, the fixing straps penetrate through the through sliding holes of the inserting clamping blocks on the two sides, and the fixing straps can be fully tied through the tight-propping knob, so that the auxiliary fixing of the external oil tank is realized.
The beneficial effects of the invention are as follows: (1) According to the invention, the hot pressurizing structure is arranged, the pressurizing coil pipe of the hot stamping structure is wound at the outer side of the gas tank, the gas inlet pipe is connected with the tail gas pipe of the ship engine in a pipeline manner, when the gas pressure in the gas tank is too low, the tail gas is transmitted to the first shunt pipe position and is led into the gas tank, so that the temperature in the gas tank is raised, and sufficient gas pressure is ensured in the gas tank; (2) According to the invention, the second electromagnetic valve is arranged at the position of the exhaust pipe, the tail gas is discharged into the position of the first shunt pipe, and the second electromagnetic valve is used for blocking further circulation, so that the part of the first shunt pipe between the outer-layer oil tank and the vacuum tank is provided with heat energy, the heat energy is provided, the oil is preheated, and the oil is not affected by low temperature in use; (3) According to the invention, the fixed connection structure is arranged, when the fixed plug pin is positioned between the bottom block and the sliding block, the fixed connection structure can fix the limiting block and the outer layer oil tank, so that the outer layer oil tank is not damaged or deviated due to inertia when a ship runs, the fixed plug pin moves downwards when the toggle sleeve is pressed, the sliding block moves upwards under the action of the fixed plug pin, the fixed plug pin retracts into the reset cavity, the toggle sleeve can move upwards, the top block slides out of the fixed groove and is fixed in a contact manner, and equipment can be overhauled or replaced; (4) According to the invention, the gas tank is arranged in the outer-layer oil tank, so that the gas tank can be protected, and meanwhile, the gas tank is arranged in the outer-layer oil tank, so that the outer-layer oil tank and the gas tank do not need to be horizontally arranged independently, and the occupied area can be reduced; (5) According to the invention, the dredging buffer plate is arranged, so that the dredging buffer plate moves under the action of inertia of oil when a ship runs and shakes, slides with the inner wall of the outer oil tank and the outer wall of the vacuum tank, so that impurity deposition in the oil is avoided, and the buffering and inertia of the oil are realized through the buffer hole and the oil guide hole, so that the impact damage or the deviation of the outer oil tank caused by overlarge inertia is avoided.
Drawings
Fig. 1 is a schematic diagram of a first view structure of a self-pressurized LNG tank for a dual-fuel ship according to the present invention.
Fig. 2 is a second view angle structural schematic diagram of the self-pressurizing LNG tank of the dual-fuel ship according to the present invention.
Fig. 3 is a schematic diagram of the internal partial structure of a dual fuel ship self-pressurized LNG tank according to the present invention.
Fig. 4 is a schematic diagram of the vacuum tank and dredging buffer plate of the dual-fuel ship self-pressurizing LNG liquid tank.
Fig. 5 is an enlarged view at B in fig. 1.
Fig. 6 is a cross-sectional view at a in fig. 1.
Fig. 7 is a schematic perspective view of a clamping column of a self-pressurizing LNG tank of a dual-fuel ship.
Fig. 8 is a schematic diagram of an assembly structure of a supporting baffle ring and a blocking limiting ring of a self-pressurizing LNG tank of a dual-fuel ship.
Reference numerals: 1. a fixed base; 2. an outer layer oil tank; 3. fixing the binding band; 4. a first three-way valve; 5. an air supply duct; 6. an exhaust duct; 7. a gasifier; 8. penetrating the sliding hole; 9. inserting a clamping block; 10. a pressing knob; 11. a first shunt; 12. a second shunt tube; 13. a second three-way valve; 14. an air inlet pipe; 15. a filler tube; 16. an oil drain pipe; 17. a third three-way valve; 18. a fixed connection structure; 1800. the sleeve is stirred; 1801. a limiting block; 1802. a support plate; 1803. fixing the bolt; 1804. a reset chamber; 1805. a return spring; 1806. a clamping groove; 1807. a sliding column; 1808. a support column; 1809. a slide block; 1900. a fixing groove; 1901. a top block; 19. a pressure coil; 20. a gas tank; 21. a dredging buffer plate; 22. buffering holes; 23. a vacuum tank; 24. an exhaust pipe; 25. a buffer spring; 26. a blocking stop collar; 27. a first electromagnetic valve; 28. a second electromagnetic valve; 29. a supporting baffle ring; 30. and an oil guide hole.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-3 and fig. 5, a dual-fuel ship self-pressurizing LNG liquid tank of the present embodiment includes an outer tank 2, fuel can be stored through the outer tank 2, one port of a second three-way valve 13 is connected with a first shunt pipe 11 through a pipeline, the other two ports of the second three-way valve 13 are respectively connected with a second shunt pipe 12 and an air inlet pipe 14, the second shunt pipe 12 is connected with an air outlet pipe 24 through a pipeline, the second shunt pipe 12 is connected with the air outlet pipe 24 through a pipeline, tail gas of the first shunt pipe 11 can be led into the outside of a gas tank 20 or into the outer tank 2, liquefied gas of the gas tank 20 or fuel in the outer tank 2 can be preheated, the exhaust pipe 24 can convey the tail gas in the first shunt pipe 11 and a pressurizing coil 19, and is discharged at the position of the second shunt pipe 12, a vacuum tank 23 is arranged at the position of the inner side of the outer tank 2, the gas tank 20 is fixedly connected with the gas tank 20 between two parallel inner walls of the vacuum tank 23, and the gas tank 20 can store the liquefied gas, so as to realize the fuel storage of the ship.
The central position of one end of the gas tank 20 is provided with a third three-way valve 17, the end face position of the third three-way valve 17 and the end face position of the outer oil tank 2 are in penetrating arrangement, one joint of the third three-way valve 17 and the end face position of the outer oil tank 2 are connected through pipelines, the other two joints of the third three-way valve 17 are respectively connected with a fuel filling pipe 15 and a fuel discharging pipe 16 in a pipeline manner, the fuel filling pipe 15 can be used for filling fuel into the outer oil tank 2 for storage through the third three-way valve 17, the stored fuel is discharged through the fuel discharging pipe 16, a ship engine is supplied for use, the upper surface position of the fixed base 1 is fixedly connected with a gasifier 7, the gasifier 7 can be used for gasifying fuel in the gas tank 20, the ship engine is supplied for use again, the outer oil tank 2 is far away from the central position of one end of the third three-way valve 17 and is provided with a first three-way valve 4, one joint of the first three-way valve 4 and the gas tank 20 are in penetrating fixed connection through pipelines, the other two joints of the first three-way valve 4 are respectively connected with a gas supply pipeline 5 and a gas discharging pipeline 6, one end of the gas discharging pipeline 6 is far away from the first three-way valve 4 and the gas inlet pipeline 7 is connected with the gas inlet pipeline of the gasifier 7, the fuel is used for discharging pipeline 6, the fuel is used for discharging fuel from the fuel in the gas tank 20, the gas tank 20 is supplied to the gas tank 1, the position of the outer oil tank 1 is fixed to the outer base 1 is connected with the outer layer 1, the position of the liquefied fuel tank 2 is fixed, the position of the liquefied tank 1 is fixed, and the position of the outer base is fixed, the position of the liquefied tank 2 is fixed, and the position of the liquefied tank 2 is arranged, and the position of the liquefied tank 2 is fixed, and the position is connected with the position of the liquefied tank 2 is fixed, and the position is arranged.
The hot pressurizing structure comprises a spiral-shaped pressurizing coil 19, the pressurizing coil 19 can collect and discharge the tail gas of the engine, heat is conducted to the outer wall of the gas tank 20 at the position of the pressurizing coil 19, the temperature in the gas tank 20 is raised to a certain extent, the gas pressure in the gas tank 20 is improved, the pressurizing coil 19 is fixedly connected with the outer wall of the gas tank 20, a first shunt tube 11 is connected at the position of an air inlet of the pressurizing coil 19 through a pipeline, the first shunt tube 11 is positioned at the outer part of the vacuum tank 23, a second electromagnetic valve 28 is arranged at the position close to the outer wall of the vacuum tank 23, a first electromagnetic valve 27 is arranged at the position of the part of the exhaust pipe 24 positioned at the outer part of the outer oil tank 2, the second electromagnetic valve 28 can realize the filling of the tail gas into the position of the first shunt tube 11, the interception is carried out at the outer side of the vacuum tank 23, the part of the first shunt tube 11 positioned between the outer oil tank 2 and the vacuum tank 23 generates heat, the preheating device has the advantages that oil is preheated, the phenomenon that the oil is insufficient in combustion or difficult to ignite caused under a low-temperature environment is avoided, the exhaust pipe 24 is arranged to flow back when exhaust gas is directly discharged from the position of the second shunt pipe 12 through the arrangement of the first electromagnetic valve 27, the oil or natural gas is prevented from being heated by mistake, the first shunt pipe 11 is fixedly connected with the outer wall of the vacuum tank 23 and the outer wall of the outer oil tank 2 in a penetrating mode, the exhaust pipe 24 is connected with the air outlet position pipeline of the pressurizing coil 19, the air inlet pipe 14 can collect and convey hot exhaust gas generated by a ship engine, the second shunt pipe 12 enables the hot exhaust gas to be directly discharged, the first shunt pipe 11 enables the hot exhaust gas to preheat the oil or the natural gas, and the exhaust pipe 24 is fixedly connected with the outer wall of the vacuum tank 23 and the outer oil tank 2 in a penetrating mode.
The fixed connection structure 18 includes a plurality of bottom block structures and a plurality of block regulation structures, and a plurality of bottom block structures are located fixed base 1 surface position, and a plurality of block regulation structures are fixed with outer oil tank 2 outer wall bottom position fixed connection, and correspond the block regulation structure block fixed connection of position bottom block structure and corresponding position, are provided with the buffering clearance structure between outer oil tank 2 inboard and the vacuum tank 23 outside.
The fixed base 1 upper surface is located the equal fixedly connected with of a plurality of evenly distributed of outer oil tank 2 both sides position and inserts and close fixture block 9, a plurality of inserts close fixture block 9 upper surface positions have seted up run-through slide hole 8, be provided with fixed bandage 3 between two inserts close fixture block 9 of corresponding position, fixed bandage 3 runs through sliding connection with run-through slide hole 8 of corresponding position, a plurality of inserts close fixture block 9 lateral wall position run-through threaded connection has to support tight knob 10, support tight knob 10 and fixed bandage 3 of corresponding position and support tightly, fixed bandage 3 runs through the run-through slide hole 8 of the insert close fixture block 9 of both sides in, the rethread supports tight knob 10 and can realize carrying out abundant binding up to fixed bandage 3, realize carrying out auxiliary fixation to outer oil tank 2.
As shown in fig. 4 and 8, the buffering and cleaning structure comprises a plurality of evenly distributed dredging buffer plates 21, the dredging buffer plates 21 can shake back and forth when the ship shakes, solid impurity deposition in fuel oil is avoided, a plurality of evenly distributed buffering holes 22 are formed in the outer wall positions of the dredging buffer plates 21 in a penetrating way, the buffering holes 22 can effectively release energy and buffer the inertia generated by oil during shaking, normal extraction and use of the oil are not affected, meanwhile, the buffering holes 22 in the positions of the dredging buffer plates 21 can effectively buffer the inertia generated by oil during shaking, damage to the outer oil tank 2 caused by excessive inertia force is avoided, the outer side of the dredging buffer plates 21 is in sliding connection with the inner side of the outer oil tank 2, the inner side of the dredging buffer plates 21 is in sliding connection with the outer wall of the vacuum tank 23, a plurality of evenly distributed buffering springs 25 are fixedly connected between the dredging buffer plates 21, the buffer springs 25 are all pressure spring materials, the buffer springs 25 realize that the dredging buffer plate 21 slides back and forth when oil shakes, the two ends of the outer wall of the vacuum tank 23 are fixedly connected with blocking limiting rings 26 in a penetrating way, the outer wall of the blocking limiting rings 26 are fixedly connected with supporting baffle rings 29 in a clamping way, a plurality of evenly distributed oil guide holes 30 are formed in the side wall of the supporting baffle rings 29 in a penetrating way, the supporting baffle rings 29 are made of aluminum alloy materials, the blocking limiting rings 26 can prevent the dredging buffer plate 21 from sliding and falling off at the position of the vacuum tank 23, the vacuum tank 23 is fixed at the inner side of the outer oil tank 2 through the supporting baffle rings 29, the supporting baffle rings 29 are connected with the blocking limiting rings 26 through bolts, the oil guide holes 30 are convenient to realize the function of buffering inertia, the aluminum alloy materials are hard and light in weight, the outer wall of the supporting baffle ring 29 is fixedly connected with the inner wall of the outer oil tank 2.
As shown in fig. 6 and 7, the bottom clamping structures include a clamping groove 1806, a support column 1808 is fixedly connected to the central position of the inner bottom wall of the clamping groove 1806, a sliding column 1807 is fixedly connected to the central position of the upper surface of the support column 1808, a top block 1901 is fixedly connected to the top position of the sliding column 1807, the upper surface of the top block 1901 is in a circular arc shape, and a sliding block 1809 is slidably connected to the outer wall position of the sliding column 1807.
The supporting plate 1802 is fixedly connected with the outer wall of the outer oil tank 2, the outer wall of the supporting plate 1802 is fixedly connected with a stirring sleeve 1800 in a penetrating and sliding mode, a fixed groove 1900 is formed in the center of the lower surface of the stirring sleeve 1800, a reset cavity 1804 is formed in the side wall of the fixed groove 1900, a fixing bolt 1803 is slidably connected to the inner wall of the reset cavity 1804, a reset spring 1805 is fixedly connected between the fixing bolt 1803 and the inner wall of the reset cavity 1804, the reset spring 1805 is a pressure spring, one end of the supporting plate 1802 is fixedly connected with a limiting block 1801 in the fixed groove 1900, the outer oil tank 2 is placed on the surface of the fixed base 1 in a hanging mode, the supporting plate 1802 is inserted into the fixed groove 1900, the fixing bolt 1803 is clamped at the position below the top block 1901, clamping fixation of the outer oil tank 2 can be achieved, when the fixing bolt 1804 is required to be disassembled, the stirring sleeve 1800 is pressed downwards, the fixing bolt 1803 is pressed into the reset cavity 1809 under the action of an arc surface of the sliding block 1809, the sliding block 1809 slides upwards, the stirring sleeve 1800 can be enabled to be removed from the clamping groove 6, and the fixing bolt 1803 can be fixed to the top of the outer oil tank 1901, and the outer oil tank can be fixed to the top of the outer oil tank 2.
The working principle of this embodiment is as follows, the outer layer oil tank 2 is suspended on the surface position of the fixed base 1 through the hoisting equipment, so that the stirring sleeve 1800 is inserted into the corresponding clamping groove 1806, the support column 1808 is inserted into the fixed groove 1900, the fixed bolt 1803 of the inserted clamping block 9 is inserted between the top block 1901 and the sliding block 1809, and the support plate 1802 is supported on the top position of the top block 1901, so as to fix the outer layer oil tank 2, in the penetrating slide hole 8 in which the fixing strap 3 is inserted, the fixing strap 3 is tightly pressed by the tight pressing knob 10, so that the outer layer oil tank 2 can be fixed in an auxiliary manner, the tight pressing knob 10 is loosened, the fixing strap 3 is removed, the stirring sleeve 1800 is pressed again, so that the fixed bolt 1803 is pressed into the reset cavity 1804 under the action of the circular arc surface of the sliding block 1809, and the sliding block 1809 slides upwards, so that the stirring sleeve 1800 slides out of the clamping groove 1806, so that the top block 1901 slides out of the fixed groove, so as to cancel the fixing of the outer layer oil tank 2;
the liquefied gas is filled into the gas tank 20 through the gas supply pipeline 5, the liquefied gas in the gas tank 20 is exhausted through the gas exhaust pipeline 6, gasified by the gasifier 7 and supplied to the ship engine for use, the oil filling pipe 15 is used for filling oil into the outer layer oil tank 2 for storage, the oil is discharged through the oil discharge pipe 16, and the oil can be supplied to the ship engine for use;
when the air pressure in the air tank 20 is too low, the second three-way valve 13 closes the second shunt pipe 12, so that hot tail gas is discharged into the first shunt pipe 11 through the air inlet pipe 14 and is led into the pressurizing coil 19, the outer wall of the air tank 20 is preheated, so that the air pressure in the air tank 20 is increased, the tail gas is discharged to the second shunt pipe 12 through the air outlet pipe 24 for tail gas discharge, when the oil in the outer oil tank 2 needs to be preheated, the second electromagnetic valve 28 is closed, the valve of the second three-way valve 13 positioned at the positions of the first shunt pipe 11 and the second shunt pipe 12 is opened, so that the part of the first shunt pipe 11 positioned in the outer oil tank 2 heats, the oil is preheated, and when the oil and the liquefied gas do not need to be heated, the valve of the first shunt pipe 11 positioned at the second three-way valve 13 is closed, and the first electromagnetic valve 27 is closed, and the tail gas is directly discharged through the second shunt pipe 12;
when the ship runs, the ship can shake, so that the dredging buffer plate 21 shakes back and forth, the inner side of the outer oil tank 2 and the outer side of the vacuum tank 23 can avoid depositing solid impurities of oil, and meanwhile, the buffer holes 22 at the position of the dredging buffer plate 21 can buffer inertia generated by shaking of the oil.
Simultaneously through all being provided with wireless temperature monitor in gas pitcher 20 and outer oil tank 2, can carry out remote monitoring temperature monitoring to gas pitcher 20 and outer oil tank 2 through wireless temperature monitor, and gas pitcher 20 inboard is provided with wireless atmospheric pressure monitor, carries out remote monitoring to the pressure in the gas pitcher 20 for gas pitcher 20 and outer oil tank 2 are when carrying out the intensification safer.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. The utility model provides a dual fuel boats and ships self-pressurizing LNG fluid reservoir, includes outer oil tank (2), its characterized in that: the vacuum tank is characterized in that a vacuum tank (23) is arranged at the inner side of the outer oil tank (2), a gas tank (20) is fixedly connected between two parallel inner walls of the vacuum tank (23), a fixed base (1) is arranged at the lower position of the outer oil tank (2), a fixed connection structure (18) is arranged between the fixed base (1) and the outer oil tank (2), and a hot pressurizing structure is arranged at the outer wall of the gas tank (20);
the hot pressurizing structure comprises a pressurizing coil pipe (19) which is spirally arranged, the pressurizing coil pipe (19) is fixedly connected with the outer wall of the gas tank (20), a first shunt pipe (11) is connected with the gas inlet position pipeline of the pressurizing coil pipe (19), the first shunt pipe (11) is fixedly connected with the outer wall of the vacuum tank (23) and the outer wall of the outer oil tank (2) in a penetrating manner, an exhaust pipe (24) is connected with the gas outlet position pipeline of the pressurizing coil pipe (19), and the exhaust pipe (24) is fixedly connected with the outer wall of the vacuum tank (23) and the outer wall of the outer oil tank (2) in a penetrating manner;
the fixed connection structure (18) comprises a plurality of bottom clamping structures and a plurality of clamping adjustment structures, wherein the bottom clamping structures are located at the surface position of the fixed base (1), the clamping adjustment structures are fixedly connected with the bottom of the outer wall of the outer oil tank (2), the bottom clamping structures at the corresponding positions are fixedly connected with the clamping adjustment structures at the corresponding positions, and a buffer cleaning structure is arranged between the inner side of the outer oil tank (2) and the outer side of the vacuum tank (23).
2. The self-pressurizing LNG liquid tank of the dual-fuel ship according to claim 1, wherein the buffering cleaning structure comprises a plurality of evenly distributed dredging buffer plates (21), the outer sides of the dredging buffer plates (21) are in sliding connection with the inner sides of outer oil tanks (2), the inner sides of the dredging buffer plates (21) are in sliding connection with the outer walls of vacuum tanks (23), a plurality of evenly distributed buffering springs (25) are fixedly connected between the dredging buffer plates (21), and the plurality of buffering springs (25) are made of pressure spring materials.
3. The self-pressurizing LNG liquid tank of the dual-fuel ship according to claim 1, wherein the two ends of the outer wall of the vacuum tank (23) are fixedly connected with blocking limiting rings (26) in a penetrating mode, the outer wall of the blocking limiting rings (26) is fixedly connected with supporting baffle rings (29) in a clamping mode, a plurality of oil guide holes (30) which are uniformly distributed are formed in the side wall of the supporting baffle rings (29) in a penetrating mode, the supporting baffle rings (29) are made of aluminum alloy materials, and the outer wall of the supporting baffle rings (29) is fixedly connected with the inner wall of the outer-layer oil tank (2).
4. A dual fuel vessel self-pressurizing LNG tank in accordance with claim 2, characterized in that a plurality of evenly distributed buffer holes (22) are provided through the outer wall of the dredging buffer plate (21).
5. A dual fuel vessel self-pressurizing LNG tank according to claim 1, characterized in that the first shunt tube (11) is located at a part outside the vacuum tank (23), and a second electromagnetic valve (28) is arranged near the outer wall of the vacuum tank (23), and the exhaust pipe (24) is provided with a first electromagnetic valve (27) at a part outside the outer layer oil tank (2).
6. The self-pressurizing LNG liquid tank of the dual-fuel ship according to claim 1, wherein a second three-way valve (13) is arranged on the outer side of the outer-layer oil tank (2), one interface of the second three-way valve (13) is connected with a first shunt pipe (11) in a pipeline manner, the other two interfaces of the second three-way valve (13) are respectively connected with a second shunt pipe (12) and an air inlet pipe (14), and the second shunt pipe (12) is connected with an exhaust pipe (24) in a pipeline manner.
7. The self-pressurizing LNG liquid tank of the dual-fuel ship according to claim 1, wherein a third three-way valve (17) is arranged at the center position of one end of the gas tank (20), the end face position of the third three-way valve (17) and the end face position of the outer-layer oil tank (2) are in penetrating arrangement, one interface of the third three-way valve (17) is connected with the end face position of the outer-layer oil tank (2) through a pipeline, the other two interfaces of the third three-way valve (17) are respectively connected with a filling pipe (15) and an oil drain pipe (16) through pipelines, the upper surface position of the fixed base (1) is fixedly connected with a gasifier (7), the center position of one end of the outer-layer oil tank (2) far away from the third three-way valve (17) is provided with a first three-way valve (4), one interface of the first three-way valve (4) is fixedly connected with the gas tank (20) through a pipeline, the other two interfaces of the first three-way valve (4) are respectively connected with an air supply pipeline (5) and an air drain pipeline (6), and the air drain pipeline (6) is far away from one end of the first three-way valve (4) and is connected with the liquid inlet pipeline of the gasifier (7).
8. The dual fuel vessel self-pressurizing LNG tank of claim 1, wherein: the bottom clamping structure comprises a clamping groove (1806), the clamping groove (1806) is located at the upper surface of the fixed base (1), a support column (1808) is fixedly connected to the central position of the inner bottom wall of the clamping groove (1806), a sliding column (1807) is fixedly connected to the central position of the upper surface of the support column (1808), a top block (1901) is fixedly connected to the top position of the sliding column (1807), the upper surface of the top block (1901) is in a circular arc shape, and a sliding block (1809) is slidably connected to the outer wall of the sliding column (1807).
9. The self-pressurizing LNG liquid tank of the dual-fuel ship according to claim 1, wherein the clamping adjusting structures comprise supporting plates (1802), the supporting plates (1802) are fixedly connected with the outer wall of an outer-layer oil tank (2), a stirring sleeve (1800) is fixedly connected at the position of the outer wall of each supporting plate (1802) in a penetrating and sliding mode, a fixing groove (1900) is formed in the center of the lower surface of each stirring sleeve (1800), a reset cavity (1804) is formed in the side wall of each fixing groove (1900), a fixing bolt (1803) is fixedly connected at the position of the inner wall of each reset cavity (1804) in a sliding mode, a reset spring (1805) is fixedly connected between each fixing bolt (1803) and the inner wall of each reset cavity (1804), each reset spring (1805) is a pressure spring, and one end of each supporting plate (1802) located in each fixing groove (1900) is fixedly connected with a limiting block (1801).
10. The self-pressurizing LNG liquid tank of the dual-fuel ship according to claim 1, wherein a plurality of evenly distributed inserting clamping blocks (9) are fixedly connected to the positions, located on two sides of an outer oil tank (2), of the upper surface of the fixing base (1), penetrating slide holes (8) are formed in the positions of the upper surface of the inserting clamping blocks (9), fixing straps (3) are arranged between the two inserting clamping blocks (9) in the corresponding positions, the fixing straps (3) are in penetrating slide connection with the penetrating slide holes (8) in the corresponding positions, the abutting rotary knobs (10) are in penetrating threaded connection with the side wall positions of the inserting clamping blocks (9), and the abutting rotary knobs (10) are abutted to the fixing straps (3) in the corresponding positions.
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| FR3016682B1 (en) * | 2014-01-21 | 2017-01-27 | Cryolor | STATION AND METHOD FOR SUPPLYING A FLAMMABLE FUEL FLUID |
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| DE19547240A1 (en) * | 1995-12-18 | 1997-06-19 | Bayerische Motoren Werke Ag | Fuel tank for liquid gas |
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| CN116552699A (en) | 2023-08-08 |
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