CN107366829B

CN107366829B - Transport the material-flow method of LNG

Info

Publication number: CN107366829B
Application number: CN201710663462.5A
Authority: CN
Inventors: 张冲; 韩网兆
Original assignee: Jiangsu Xun Long Energy Co Ltd
Current assignee: Jiangsu Xun Long Energy Co Ltd
Priority date: 2017-08-05
Filing date: 2017-08-05
Publication date: 2019-08-27
Anticipated expiration: 2037-08-05
Also published as: CN107366829A

Abstract

The invention discloses a kind of material-flow methods for transporting LNG, and S1, LNG tank case cargo ship enter LNG receiving station or liquefaction plant harbour；S2, the synchronous filling of multiple tank case is carried out to the LNG tank case on LNG tank case cargo ship；LNG tank case cargo ship after S3, fluid injection leaves LNG receiving station or liquefaction plant harbour, transports to destination；After S4, LNG tank case cargo ship arrive at the destination, handling LNG tank case completes transport.The cost of this kind of material-flow method is lower than the 66.7% of existing material-flow method, transportation cost decline 32.6%；Cycle of turnover is shorter, and the utilization rate of tank case is more preferable.

Description

Transport the material-flow method of LNG

Technical field

The present invention relates to material-flow methods, in particular to transport the material-flow method of LNG.

Background technique

LNG is the abbreviation of liquefied natural gas, for doing a kind of clean energy resource, in terms of import, facilitates the energy and disappears Take the diversification that state realizes energy supply；In terms of outlet, facilitates natural gas producing nation effective exploitation natural gas resource, increases Foreign exchange earnings are promoted national economic development.

At present China just have in the coastal LNG project of planning and implementation: Guangdong, Fujian, Zhejiang, Shanghai, Jiangsu, Shandong, Liaoning, Ningxia, Tangshan etc. ultimately form a coastal LNG receiving station and transmission pipeline network.

Existing conventional LNG middle and long distance transport is to be sent from gas field liquefaction plant to coastal receiving station to complete by bulk ship , then again by the loading station of receiving station to groove tank car entrucking, then is transported by land tank car to end and use unit storage tank In move back and forth.

The basic data of conventional LNG stream mode is following (following data is by taking the receiving station of the Qidong Guang Hui as an example):

Coastal annual throughout is that 600,000 tons of LNG receiving station construction investment amounts are about 2,500,000,000 RMB, the construction period needs 7~ 8 years, 50 low temperature groove tank cars of investment in need carried out the land transport of middle and long distance, receiving station and public affairs in receiving station to end About 150 people of road logistics system operations staff.Terminal temperature difference need to establish about 700,000 yuan of formula LNG storage tank investment/each end, digestion The using terminal enterprise of 600 1000T/ is needed using 600,000 tons of ends, the storage tank construction cost of using terminal is about 4.2 Hundred million yuan.When with the average distance of highway transportation being 300km its highway transportation per ton need cost be (0.5(T/Km) × 300Km × 600000T reception amount)+(investment of 600000T × 400 yuan/T receiving station, operating cost)=reversible unit sheet is 3.1 hundred million yuan Share it is per ton to the about 550 yuan/T+liquefaction plant in end to receiving station's LNG ship freight charges in bulk be about 400 yuan/T, by with Upper operation data is concluded that

The installations and facilities receive in year, store, transporting, digest 600,000 tons of LNG always put into about 3,000,000,000 yuans, Above equipment facility investment is free of the expenditure of construction of LNG seagoing vessel in bulk；From gas field liquefaction plant harbour into end user's hand Direct freight charges be about 950 yuans/T；The configuration for needing the operation personnel of 150 people occupies huge navigation channel port resources, The highway transportation of middle and long distance can also occupy traffic resource.

Summary of the invention

The object of the present invention is to provide the material-flow methods of transport LNG for reducing LNG stream cost a kind of.

Above-mentioned technical purpose of the invention has the technical scheme that a kind of logistics side for transporting LNG Method,

S1, LNG tank case cargo ship enter LNG receiving station or liquefaction plant harbour；

S2, the synchronous filling of multiple tank case is carried out to the LNG tank case on LNG tank case cargo ship；

LNG tank case cargo ship after S3, fluid injection leaves LNG receiving station or liquefaction plant harbour, transports to destination；

After S4, LNG tank case cargo ship arrive at the destination, handling LNG tank case completes transport.

By using above-mentioned technical proposal, it can be achieved that directly being transported from LNG receiving station or liquefaction plant harbour to LNG tank case LNG tank case on ship is filled, and after arriving at the destination, can directly unload LNG tank case；The cost of this kind of means of transportation is such as Under: building the cost that one quickly fills LNG tank case Ship for Transporting Module is 1.98 hundred million yuan, and annual throughout is 600,000 tons and needs to build 3,700 × 500,000=3.5 hundred million yuan of LNG cryogenic tank case of investment turnover, 30 dollies can meet from Russian husky Woods gas field liquefaction plant is breathed out to Jiangsu, two province of Shandong year digestion demand, because not needing to build coastal receiving station, need to put into ship and LNG cryogenic tank case and dollie gross investment are about 1,000,000,000 yuan, reduce 2,000,000,000 yuan on year-on-year basis, total input cost has dropped 66.7%。

Preferably, the destination of the S3 and S4 is the dangerous material berth of container terminal.

By using above-mentioned technical proposal, the operation personnel of container terminal is directly managed LNG tank case, improves The utilization rate of container terminal, the operation personnel for avoiding 150 people of LNG receiving station configure expense.

Preferably, including S5a after the S4;S5a, the LNG tank case cargo ship are by LNG tank case in container terminal The unloading of dangerous material reception area, is then transported by container flat car or railway.

By using above-mentioned technical proposal, the shipment of gas field liquefaction plant is realized, LNG tank case cargo ship is transported to container port Mouthful, then terminal temperature difference is transported to by the way that flat car is short；It is coastal with the Russian gas field Sha Halin liquefaction plant to Jiangsu, two province of Shandong For container terminal, wherein freight charges are about that 100 yuan/T+ of discharging charge flat car is short is transported to for 500 yuan/T+ container hargour dress Terminal temperature difference (100KM × 0.4 yuan/T) completes consistent 640 yuan/T of whole logistics progresses on earth, with 950 yuan/T's of the prior art Transportation cost is compared, and only transportation cost just has dropped 32.6%.

Preferably, the destination of the S3 and S4 is the LNG receiving station in inland river.

By using above-mentioned technical proposal, the LNG that LNG tank case cargo ship can enter inland river by the Changjiang river and canal is received It stands, the transport of LNG tank case is carried out by the water system of inland prosperity, more saving transportation cost.

Preferably, including S5b after the S4；LNG in LNG tank case is passed through stream by S5b, the LNG tank case cargo ship Body handling facilities are delivered in the storage tank of LNG receiving station in inland river.

By using above-mentioned technical proposal, the LNG in the LNG receiving station storage tank in inland river is supplemented.

Preferably, the material-flow method can also be with transporting petroleum or ethylene or LPG.

By using above-mentioned technical proposal, this kind of means of transportation is applicable not only to LPG, is equally applicable to other chemical liquids The transport of substance.

Preferably, including S6 after the S4;S6.LNG tank case in use, passes through detection module and wireless module Level condition in LNG tank case is fed back.

By using above-mentioned technical proposal, the liquid level situation inside logistics personnel monitoring to LNG tank case is helped, to collect The LNG of user uses rate；It can also monitor in entire LNG tank case cargo ship transportational process simultaneously, the inside feelings of LNG tank case Condition.

Preferably, including S7 after the S6；S7. when in the LNG tank case of feedback liquid level pass through packaging to when needing replacing Case flat car or railway recycle LNG tank case, and the LNG tank case of recycling is loaded into LNG tank case cargo ship.

By using above-mentioned technical proposal, replacement LNG tank case will be arranged before use terminates in the liquid in LNG tank case, The LNG tank case filled is consigned into user, then transports back empty LNG tank case in LNG tank case cargo ship, add next time Note；The recycling of LNG tank body is realized, logistics cost is reduced.

Preferably, the quantity of the LNG tank case is 80-120, the LNG tank case volume is 46000L.

By using above-mentioned technical proposal, the primary middle-size and small-size LNG tank case for transporting 80-120 reduces LNG tank case ship Size and cost so that transport period shorten, logistics it is more efficient.

In conclusion the invention has the following advantages: the cost of this kind of material-flow method is lower than existing material-flow method 66.7%, transportation cost decline 32.6%；Cycle of turnover is shorter, and the utilization rate of tank case is more preferable.

Detailed description of the invention

Fig. 1 is the positional diagram of platform in embodiment 7；

Fig. 2 is the positional diagram of LNG storage tank and automatic butt jointing device in embodiment 7；

Fig. 3 is the structural schematic diagram of LNG storage tank in embodiment 7；

Fig. 4 is the enlarged diagram of A portion shown in Fig. 3；

Fig. 5 is the structural schematic diagram of automatic butt jointing device in embodiment 7；

Fig. 6 is the diagrammatic cross-section of automatic butt jointing device in embodiment 7；

Fig. 7 is the locking level of embodiment 7 and the diagrammatic cross-section of locking casing；

Fig. 8 is the structural schematic diagram of the second fixed plate in embodiment 7；

Fig. 9 is the structural schematic diagram of hoistable platform in embodiment 7；

Figure 10 is the enlarged diagram of B portion shown in Fig. 9；

Figure 11 is the top view of 8 middle deck of embodiment;

Figure 12 is the schematic cross-section of female fill adapter of embodiment 9.

In figure, 1, platform；11, LNG tank case；12, module is stored；13, tank body；14, frame structure；15, receiving end；16, First fixed plate；17, female fill adapter；18, solenoid electric valve；19, the second fixed plate；2, general pipeline；21, swivel；22, Low pressure LNG pipe；23, nitrogen tube；24, instrument air pipe；26, flare stack；3, automatic butt jointing device；31, float plate；32, public to add Infuse connector；33, filler pipe；34, tracheae is returned；35, oil cylinder fixed block；36, third fixed plate；37, the first oil cylinder；38, aviation Connector；39, aviation socket；4, guide post；41, floating concentric mechanism；42, through hole；43, fixed part；44, elastic component；45, first Rotating block；46, the second rotating block；5, module is gone up and down；51, first pipe；52, second pipe；53, connecting tube；54, lifting is flat Platform；55, third oil cylinder；6, it is oriented to locking mechanism；61, locking level；62, casing is locked；63, slid chamber；64, the second oil cylinder；65, Sliding part；66, locking channel；67, pearl is locked；68, inclined-plane；69, lock slots；7, deck;71, spool；72, spring；73, it filters Hole;74, vacuum thermal insulation cavity.

Specific embodiment

Below in conjunction with attached drawing, invention is further described in detail.

This specific embodiment is only explanation of the invention, is not limitation of the present invention, means of transportation is not only Suitable for LPG, it is equally applicable to the transport of other chemical liquid substances, those skilled in the art can after reading this specification To make the modification of not creative contribution to the present embodiment as needed, but as long as in scope of the presently claimed invention all Protection by Patent Law.

Embodiment 1:

S1, LNG tank case cargo ship enter liquefaction plant harbour；

LNG tank case cargo ship after S3, fluid injection leaves liquefaction plant harbour, transports the dangerous material to container terminal Berth；

S4, LNG tank case cargo ship reach the dangerous material berth of container terminal, and handling LNG tank case completes transport；

The dangerous material reception area of S5a, the LNG tank case cargo ship by LNG tank case in container terminal is unloaded, and is then passed through Container flat car is transported to user;

S6.LNG tank case in use, by detection module and wireless module to the level condition in LNG tank case into Row feedback；

S7. when liquid level is to when needing replacing in the LNG tank case of feedback, by container flat car or railway to LNG tank case It is recycled, and the LNG tank case of recycling is loaded into LNG tank case cargo ship.

Embodiment 2:

S1, LNG tank case cargo ship enter LNG receiving station；

LNG tank case cargo ship after S3, fluid injection leaves LNG receiving station, transports and moors to the dangerous material of container terminal Position；

The dangerous material reception area of S5a, the LNG tank case cargo ship by LNG tank case in container terminal is unloaded, and is then passed through Railway transportation is to user;

Embodiment 3:

S1, LNG tank case cargo ship enter LNG receiving station；

Embodiment 4:

S1, LNG tank case cargo ship enter liquefaction plant harbour；

Embodiment 5:

S1, LNG tank case cargo ship enter liquefaction plant harbour；

LNG tank case cargo ship after S3, fluid injection leaves liquefaction plant harbour, transports the LNG receiving station to inland river；

S4, LNG tank case cargo ship reach the LNG receiving station in inland river, and handling LNG tank case completes transport;

S5b, LNG tank case cargo ship receive the LNG in LNG tank case by the LNG that fluid assembly and disassembly equipment is delivered to inland river In the storage tank stood;

Embodiment 6:

S1, LNG tank case cargo ship enter LNG receiving station；

S5b, LNG tank case cargo ship receive the LNG in LNG tank case by the LNG that fluid assembly and disassembly equipment is delivered to inland river In the storage tank stood.

Embodiment 7:

As depicted in figs. 1 and 2, the synchronous loading system of a kind of more LNG tank casees 11, including multiple LNG tank case 11(Fig. 1 are to bow View), it is an object of the invention to realize the synchronous filling to multiple LNG tank casees 11.

As depicted in figs. 1 and 2, the storage module 12 of LNG tank case 11 includes the platform 1 of setting in the plane, opposed platforms 1 On LNG tank case 11 in being oppositely arranged, LNG tank case 11 is set side by side with multiple (show in Fig. 2 clear along local width direction Chu hides the LNG tank case 11 being set side by side)；In the height direction, the stacking of LNG tank case 11 has two layers；In the length of platform 1 On direction, LNG storage tank may also set up multiple groups.

As shown in Fig. 2, this system includes the general pipeline 2 for conveying LNG and conveying return gas, general pipeline 2 and storage module are realized The automatic butt jointing device 3 of 11 automatic butt of LNG tank case in 12；When storing 11 pile of LNG tank case in module 12 has multilayer, This system further includes realizing the lifting of automatic butt jointing device 3, the lifting module 5 filled to the LNG tank case 11 piled up on upper layer.

As shown in figure 3, LNG tank case 11 includes that external frame structure 14 is arranged in and internal tank body 13, tank is arranged in Body 13 is fixed by frame structure 14；One end of 11 length direction of LNG tank case is provided with receiving end 15, as shown in figure 4, receiving end 15 Including first fixed plate 16 fixed with frame structure 14；First fixed plate 16 includes that two female 17: one mothers of fill adapter add Note connector 17 is connect by two root canal roads with tank body 13, and two root canal roads each serve as normal filling LNG and the in advance effect of filling LNG Fruit (is pre-chilled before tank body 13 is filling)；Another mother's fill adapter 17 is connect by a root canal road with tank body 13, and filling is worked as When LNG, play the role of the gas discharge in tank body 13；It is both provided with solenoid electric valve 18 on each pipeline, controls pipeline Opening and closing.

As shown in figure 5, automatic butt jointing device 3 includes float plate 31, public fill adapter 32 is provided in float plate 31, public affairs add Note connector 32 can in female fill adapter 17(Fig. 4 in the first fixed plate 16) grafting is connected to；Two public fill adapters 32 are distinguished It is communicated with folding filler pipe 33 and folding return tracheae 34, filler pipe 33 and return tracheae 34 are respectively and in Fig. 2 General pipeline 2 is connected to.

As shown in fig. 6, oil cylinder fixed block 35 and third fixed plate 36 are disposed with after float plate 31, float plate 31 and oil Cylinder fixed block 35 connects.The first oil cylinder 37 is fixed in third fixed plate 36, it is solid that the piston rod of the first oil cylinder 37 is fed through third After fixed board 36, push oil cylinder fixed block 35 and float plate 31 mobile to the first fixed plate 16, make female fill adapter 17 with it is above-mentioned male Fill adapter 32 is connected to.

As shown in figure 5, it is correspondingly arranged on Aviation Connector 38 and aviation socket 39 in float plate 31 and the first fixed plate 16, After the first oil cylinder 37 pushes float plate 31 mobile to the first fixed plate 16, Aviation Connector 38 is docked with aviation socket 39, in turn Control solenoid electric valve 18.

As shown in figure 8, being provided with four guide posts 4, one end of guide post 4 between third fixed plate 36 and oil cylinder fixed block 35 It is fixed with oil cylinder fixed block 35, while guide post 4 is fed through third fixed plate 36, when the first oil cylinder 37 pushes float plate 31 mobile When, guide post 4 and third fixed plate 36 cooperate, and play the role of guiding.

As shown in figure 5, the process for pushing float plate 31 relatively or contrarily to move to the first fixed plate 16 in the first oil cylinder 37 In, male fill adapter 32 and above-mentioned female fill adapter 17 dock.It is docked to reduce male fill adapter 32 with female fill adapter 17 When, the inadequate bring abrasion of concentricity.As shown in fig. 6, being provided with floating between float plate 31 and oil cylinder fixed block 35 to the heart Mechanism 41.

The structure of floating concentric mechanism 41 are as follows:

As shown in fig. 6, floating concentric mechanism 41 includes the through hole 42 through float plate 31, it is provided in through hole 42 solid Determine portion 43, fixed part 43 is fed through through hole 42, and both ends the radially extending along through hole 42 of 43 length direction of fixed part is fixed The both ends of 43 length direction of portion protrude from through hole 42 radially, play the work of clamping float plate 31 and oil cylinder fixed block 35 With fixed part 43 limits the movement of float plate 31 and oil cylinder fixed block 35 in the horizontal direction；Fixed part 43 and the first oil cylinder 37 Piston rod connection, so that thrust and pulling force are transferred in float plate 31 and oil cylinder fixed block 35.

As shown in figure 8, in the height direction, the corner location of the inside of float plate 31 is provided with elastic component 44, elastic component 44 be spring, and one end of each spring is connect by the first rotating block 45 with float plate 31, and the other end of each spring passes through the Two rotating blocks 46 are connect with oil cylinder fixed block 35.And then float plate 31 and oil cylinder fixed block 35 in the height direction after stress (on When stating male fill adapter 32 and being docked with female fill adapter 17, the inadequate bring active force of concentricity), elastic component 44 can be stretched or be pressed Contracting is directed at male fill adapter 32 and female fill adapter 17 in the height direction.

As shown in figure 5, in order to guarantee that the first fixed plate 16 and float plate 31 in docking, are in the lock state, float plate 31 and first are provided with guiding locking mechanism 6 between fixed plate 16.

As shown in figure 5, guiding locking mechanism 6 includes that the locking level 61 being arranged in float plate 31 and setting are fixed first Locking casing 62 on plate 16, when the first oil cylinder 37 pushes float plate 31 mobile to the first fixed plate 16, locking level 61 is moved into It locks in casing 62, plays the role of guiding and positioning；As shown in fig. 6, slid chamber 63 is provided in locking level 61, float plate 31 The back side of locking level 61 is provided with the second oil cylinder 64, the piston rod of the second oil cylinder 64 is connected with sliding part 65, and sliding part 65 is sliding Shifting is connected in slid chamber 63；As shown in fig. 7, the end of locking level 61 is provided with a circle locking channel 66, locking channel 66 with Slid chamber 63 is connected to, and is rolled in locking channel 66 and is connected with locking pearl 67；The end of sliding part 65 is provided with inclined-plane 68, works as sliding When part 65 is mobile to locking pearl 67 under the drive of the second oil cylinder 64, locking pearl 67 is logical by the ejection locking of inclined-plane 68 of sliding part 65 66 a part of road (i.e. locking pearl 67 protrudes from the dry outer surface of locking), then locks the lock slots of the insertion locking casing 62 of pearl 67 In 69, locking level 61 and locking casing 62 is prevented to be detached from.

As shown in figure 5, folding filler pipe 33 and the folding material for returning to tracheae 34 are transport low temperature LNG liquid Dedicated pipeline；Since filler pipe 33 and return tracheae 34 are formed by connecting by more root canal roads, filler pipe 33 and return tracheae 34 Folding by being provided with the realization of swivel 21 between adjacent tubes, swivel 21 not only realizes pipeline and pipeline Between rotation, while the connection between adjacent channel can also be realized by swivel 21.It floats when the second oil cylinder 64 pushes When plate 31 is mobile to the first fixed plate 16, it can be extended by the filler pipe 33 in folded state with tracheae 34 is returned, realization pair The filling of LNG tank case 11；When the second oil cylinder 64 withdraws float plate 31, filler pipe 33 and return tracheae 34 are folded.

As shown in Figure 10, general pipeline 2 functionally classifies, include at least five, be respectively low pressure LNG pipe 22, nitrogen tube 23, Instrument air pipe 24 returns to tracheae 34 and flare stack 26.Nitrogen tube 23 plays the work of LNG in displacement general pipeline 2 and LNG tank case 11 With；Be connected to torch after flare stack 26, play the role of by general pipeline 2 remaining LNG burning (LNG across the sea can also directly it is right Outer emptying)；Low pressure LNG pipe 22 is connected to filler pipe 33, plays the role of carrying out LNG tank case 11 filling LNG, low pressure LNG pipe 22 other end is liquid feeding end, and liquid feeding end is the position for supplying low pressure LNG；Return tracheae 34, which is communicated with, returns air return end, returns to gas The pipeline tapping of gas is discharged in end, and in filling process, the gas in LNG tank case 11 is discharged；Instrument air pipe 24 is to logical Cross the valve injection gas of pressure control.

As shown in figure 9, the lift action in order to realize lifting module 5, general pipeline 2, which is divided into, to be arranged on hoistable platform 54 Second pipe 52 and the first pipe 51 that 54 two sides of hoistable platform are arranged in, first pipe 51 and second pipe 52 pass through connecting tube 53 connections；First pipe 51 and second pipe 52 include low pressure LNG pipe 22 in Figure 10, nitrogen tube 23, instrument air pipe 24, Return to tracheae 34 and flare stack 26.Filler pipe 33 and return tracheae 34 on i.e. above-mentioned automatic butt jointing device 3, are connected to the second pipe In road 52.

As shown in Figure 10, connecting tube 53 includes more, and in embodiment 1, connecting tube 53 is four, positioned at the connection of head end A pipeline connection in pipe 53 and first pipe 51, positioned at connecting tube 53 and the root canal corresponding in second pipe 52 of tail end Road connection, adjacent connecting tube 53 are rotatablely connected and are connected to by swivel 21.When hoistable platform 54 rises, more connections Pipe 53 stretches, and when hoistable platform 54 declines, more connecting tubes 53 are mutually folded.

As shown in figure 9, hoistable platform 54 realizes lifting by third oil cylinder 55, third oil cylinder 55 is provided in embodiment 1 Three, the bottom of third oil cylinder 55 may be provided at 1 or less platform or 1 or more platform, and the piston rod of third oil cylinder 55 and lifting are flat The bottom of platform 54 connects；The side or opposite two sides of hoistable platform 54, automatic butt jointing device 3 is arranged in automatic butt jointing device 3 It is distributed with along the length direction of second pipe 52 multiple, the LNG tank case 11 of LNG tank case 11 or two sides to side fills.

The course of work of embodiment 7 are as follows: hoistable platform 54 rises or falls to 1 position of platform, until public fill adapter 32 It is aligned with female fill adapter 17, in lifting process, connecting tube 53 is folded；Then the first oil cylinder 37 is by float plate 31 to One fixed plate 16 pushes, and in pushing course, male fill adapter 32 is docked and connected with female fill adapter 17, and locking level 61 enters lock Determine in casing 62, then the second oil cylinder 64 pushes sliding part 65 mobile, makes to lock in the insertion lock slots 69 of pearl 67, avoids float plate 31 and first fixed plate 16 be detached from；During male fill adapter 32 is docked with female fill adapter 17, in the work of elastic component 44 Under, float plate 31 moves in the height direction with oil cylinder fixed block 35, avoid male 32 box mother fill adapter 17 of fill adapter it Between shock；Solenoid electric valve 18 is opened, and after LNG tank case 11 is pre-chilled, filler pipe 33 injects low pressure LNG in LNG tank case 11, is returned The synchronous gas by LNG tank case 11 of muffler 34 is discharged.After being filled to the LNG tank case 11 in same level, electricity Magnet valve controls LNG tank, filler pipe 33 and returns to tracheae 34 and closes, and the second oil cylinder 64 and the first oil cylinder 37 are gradually withdrawn.Then it rises Drop platform 54 moves up, and repeats the above steps, and realizes to the filling of more LNG tank casees 11.

Embodiment 8:

As shown in figure 11, a kind of LNG tank case cargo ship, including deck 7, the more LNG being provided on deck 7 in embodiment 1 Tank case synchronizes loading system, while LNG storage module 12 is arranged on deck 7, and the main body of third oil cylinder 55 may be provided at deck 7 Connect hereinafter, the piston rod of third oil cylinder 55 can be fed through deck 7 with hoistable platform 54 described in Figure 10 on deck 7 It connects.

The working principle of embodiment 8 is identical as the working principle of embodiment 7, and LNG receiving station or liquefaction plant harbour pass through Oil filling riser inculcates low pressure LNG to general pipeline 2, realizes filling to synchronizing for multiple LNG tank casees 11 on LNG tank case cargo ship.

Embodiment 9:

As shown in figure 12, Figure 11 is the schematic cross-section of female fill adapter 17, is provided in the inner wall of female fill adapter 17 Around female fill adapter 17, is arranged by being provided with vacuum thermal insulation cavity 74 in vacuum thermal insulation cavity 74, vacuum thermal insulation cavity 74, into And subzero 100 degree of low pressure LNG not will lead to the outer surface of public fill adapter 32 in filling process in public fill adapter 32 The problem of freezing, enabling male fill adapter 32 to be preferably inserted into above-mentioned female fill adapter 17, reduce abrasion.

It is provided with check valve in female fill adapter 17, after above-mentioned male fill adapter 32 is inserted into female fill adapter 17, Above-mentioned public affairs fill adapter 32 pushes spool 71 to move backward, and the low pressure LNG in male fill adapter 32 is filled by filter opening 73 to mother Flowing in connector 17, is realized to the filling of above-mentioned LNG tank case；Simultaneously after above-mentioned male fill adapter 32 leaves female fill adapter, It is mobile that spring 72 drives spool 71, and blocks female fill adapter 17.

Claims

1. a kind of material-flow method for transporting LNG, it is characterised in that:

S2, the synchronous filling of multiple tank case is carried out to the LNG tank case on LNG tank case cargo ship by the synchronous loading system of more LNG tank casees；

After S4, LNG tank case cargo ship arrive at the destination, handling LNG tank case completes transport；

Wherein, the synchronous loading system of more LNG tank casees includes general pipeline (2) and realizes that the general pipeline (2) and LNG tank case are automatically right The automatic butt jointing device (3) connect, the LNG tank case include that external frame structure (14) is arranged in and internal tank body is arranged in (13), the tank body (13) is fixedly connected with frame structure (14)；One end of the LNG tank case length direction is provided with receiving end (15), the receiving end (15) includes first fixed plate (16) fixed with frame structure (14), first fixed plate (16) Including two female fill adapters (17)；

The automatic butt jointing device (3) includes float plate (31), is provided with public fill adapter (32) on the float plate (31)；Institute It states float plate (31) and is disposed with oil cylinder fixed block (35) and third fixed plate (36) far from the side of public fill adapter (32), It is fixed with the first oil cylinder (37) on the third fixed plate (36), the piston rod of first oil cylinder (37) passes through third fixed plate (36) and for pushing float plate (31) that male fill adapter (32) is driven to be connected to corresponding female fill adapter (17)；

The general pipeline (2) includes low pressure LNG pipe (22) and returns to tracheae (34), the other end of low pressure LNG pipe (22) for into The other end at liquid end, the low pressure LNG pipe (22) is communicated with filler pipe (33), the filler pipe (33) and one of public filling Connector (32) connection；Described one end for returning to tracheae (34) is communicated with and returns air return end, the other end for returning to tracheae (34) with Another public fill adapter (32) is connected to.

2. the material-flow method of transport LNG according to claim 1, it is characterised in that: the destination of the S3 and S4 is collection The dangerous material berth of container berth.

3. the material-flow method of transport LNG according to claim 1, it is characterised in that: include S5a after the S4;

The dangerous material reception area of S5a, the LNG tank case cargo ship by LNG tank case in container terminal is unloaded, and packaging is then passed through Case flat car or railway are transported.

4. the material-flow method of transport LNG according to claim 1, it is characterised in that: the destination of the S3 and S4 is interior The LNG receiving station in river.

5. the material-flow method of transport LNG according to claim 4, it is characterised in that: include S5b after the S4；

S5b, the LNG tank case cargo ship receive the LNG in LNG tank case by the LNG that fluid assembly and disassembly equipment is delivered to inland river In the storage tank stood.

6. the material-flow method of transport LNG according to claim 1, it is characterised in that: the material-flow method can also transport stone Oil or ethylene or LPG.

7. the material-flow method of transport LNG according to claim 1, it is characterised in that: include S6 after the S4;

S6.LNG tank case in use, carries out the level condition in LNG tank case by detection module and wireless module anti- Feedback.

8. the material-flow method of transport LNG according to claim 7, it is characterised in that: include S7 after the S6；

S7. when in the LNG tank case of feedback liquid level LNG tank case is carried out by container flat car or railway to when needing replacing Recycling, and the LNG tank case of recycling is loaded into LNG tank case cargo ship.

9. the material-flow method of transport LNG according to claim 1, it is characterised in that: the quantity of the LNG tank case is 80- 120, the LNG tank case volume is 46000L.