CN106005271B - Liquid gas accommodates tank and ship - Google Patents
Liquid gas accommodates tank and ship Download PDFInfo
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- CN106005271B CN106005271B CN201510713161.XA CN201510713161A CN106005271B CN 106005271 B CN106005271 B CN 106005271B CN 201510713161 A CN201510713161 A CN 201510713161A CN 106005271 B CN106005271 B CN 106005271B
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Abstract
The present invention provides liquid gas and accommodates tank and ship, and liquid gas, which accommodates tank, to be possessed：It is can body (7) in the internal receiving space (10) for having and accommodating liquid gas, prominent upward from can body (7) and in top ends of cans (8) and interconnecting part (9) of the inside with the convex space (21) connected with receiving space (10), make upper gaseous phase region existing in convex space (21), the gas phase of liquid gas with it is in receiving space (10), can generate and connected with the separate gas phase generating region of the gas phase of the gas phase independence of convex space (21).
Description
Technical field
The present invention relates to liquid gas to accommodate tank and ship.
Background technology
It has been known that there is following ships：In order to transport liquid of extremely low temperature etc., there is provided the vertical profiles on beam direction in hull
Face forms the liquid goods tank of the box of polygon, spherical tank etc. and accommodates tank.This collecting tank has at it in most cases
Construction that top is loaded and unloaded, referred to as top ends of cans.On the top ends of cans, in order to be more than accommodating the rising of the pressure in tank
Protective pot in the case of predetermined pressure and various pipings and the device class such as relief valve for being provided with release pressure.
Above-mentioned collecting tank is in order to improve transfer efficiency, it is desirable to improve the loading of the liquid gas as cargo as much as possible
Rate.For example, in the case where having carried out the navigation of one month with 98% or so loading rate, cargo is swollen due tos temperature rising etc.
It is swollen, become 99.5% or so loading rate in unloading sometimes.At this point, ensure there is seldom gas in the inside of above-mentioned top ends of cans
Phase, the end of relief valve are not immersed in liquid phase.
As the gas that will be accommodated in tank to the technology of outside discharge, recorded in patent document 1 by collecting right
Generate escaping gas cargo unloaded after tank in gas and recycle the retracting device of hydrocarbon gas.The patent
The retracting device of document 1, which has, makes unrecovered inert gas etc. return to the pipeline in tank.
Patent document
Patent document 1：Japanese Unexamined Patent Application 59-164286 publications
The content of the invention
Problems to be solved by the invention
In the collecting tank of above-mentioned carrying liquefied gases, advised according to international bulk ships carrying liquefied gases construction and equipment
Then (hereinafter referred to as " IGCCode ") is provided with limitation to the construction of liquid goods tank.That is, for above-mentioned collecting tank, by
In the range of construction as defined in " IGCCode ", it is designed in a manner that total measurement (volume) is as big as possible.Should " IGCCode " it further provides that
Above-mentioned relief valve is not immersed in liquid phase.
In above-mentioned " IGCCode ", for starting the new shipbuilding started building after on July 1st, 2016, begin to use following rule
Then.The rule for " be more than 98% cargo containment rate run liquefied gas carrier, under (a) state, in the liquid goods tank
It is interior must not there are independent air pockets ".(a) state is as described below.
1.5%Lpp trim (bow and stern) and 15 degree of inclinations ... (a)
" Lpp " refers to the length being equipped between the bow after-perpendicular of the ship of liquid goods tank.
In above-mentioned collecting tank, when cargo containment rate is more than 98% and liquefied gas carrier tilts under the conditions of (a)
When, it is possible to it is separately formed air pocket in the shoulder for accommodating can body.Therefore, to effectively meet the regulation of " IGCCode ",
It then needs the loading rate of liquid gas being suppressed to less than 98%.If like this by the loading rate of liquid gas inhibit compared with
It is low, then the amount for once navigating by water transported liquid gas is caused to decline, and transfer efficiency is deteriorated.
Meet with declining as defined in " IGCCode " it is an object of the invention to provide the loading rate of liquid gas can not be made
Condition accommodates tank and ship so as to inhibit the liquid gas of the decline of transfer efficiency.
Solution for solving the problem
First technical solution according to the present invention, liquid gas accommodate tank in the internal receipts with collecting liquid gas
Hold the can body in space.The liquid gas accommodate tank also have it is prominent upward from above-mentioned can body and inside with it is above-mentioned
The top ends of cans of the convex space of receiving space connection.The liquid gas accommodates tank and is also equipped with interconnecting part, and above-mentioned interconnecting part makes above-mentioned convex
Upper gaseous phase region existing for the gas phase of in space, above-mentioned liquid gas with it is in above-mentioned receiving space, can generate with it is upper
State the separate gas phase generating region connection of the gas phase of the gas phase independence of convex space.
With this configuration, the upper gaseous phase region for the convex space for being present in top ends of cans and tank master can be made by interconnecting part
The separate gas phase generating region connection of the receiving space of body.Therefore, it is possible to inhibit to generate in the receiving space of can body
Gas phase it is independent.As a result, the loading rate of liquid gas can not be made to meet condition as defined in " IGCCode " with declining.By
This, can inhibit the decline of transfer efficiency.
According to the second technical aspect of the present invention, liquid gas accommodates tank on the basis of the first technical solution, can also
Possesses relief valve, when exceeding predetermined pressure in the inside of above-mentioned can body, above-mentioned relief valve can be by the gas phase of above-mentioned convex space
External to above-mentioned can body is released.
With this configuration, convex space is ensured in a manner that relief valve will not immerse liquid phase in the convex space of top ends of cans
Gas phase.Therefore, even if there is gas phase in the receiving space of can body, also can convex space be connected by interconnecting part
The gas phase of gas phase and receiving space, as long as relief valve works, you can the gas phase of receiving space is made to be discharged to the external of can body.
According to the third technical aspect of the present invention or, liquid gas accommodate tank in, the first or second technology
Interconnecting part in scheme is than above-mentioned can body, place makes above-mentioned upper gaseous phase region and above-mentioned separate gas phase generating region in the outer part
Connection.
With this configuration, easily interconnecting part can be added by pair tank identical with the shape of existing tank.Therefore, it is possible to press down
Meter is set up to complicate.
According to the fourth technical aspect of the present invention or, liquid gas accommodate tank in, in the 3rd technical solution
Interconnecting part has the slot forming portion in the space for forming channel-shaped.Can also interconnecting part and then make via above-mentioned slot forming portion above-mentioned
Upper gaseous phase region is connected with above-mentioned separate gas phase generating region.
Interconnecting part is formed as into channel-shaped in this way, and the installation space of setting interconnecting part can be made for Min..
Decline therefore, it is possible to correspondingly inhibit tankage size with the space for setting interconnecting part.
5th technical solution according to the present invention or, liquid gas accommodate tank in, in the 3rd technical solution
Interconnecting part possesses the outside pipe arrangement of tubulose.Can also interconnecting part and then make above-mentioned upper gaseous phase section via said external piping
Domain is connected with making to state separate gas phase generating region.
With this configuration, the cost of part can be inhibited, and can easily be constructed.
6th technical solution according to the present invention or, liquid gas accommodate tank in, in the 5th technical solution
Outside pipe arrangement possesses displacement absorption portion, and above-mentioned displacement absorption portion absorbs relative position of the above-mentioned top ends of cans compared with above-mentioned can body
Displacement.
With this configuration, even if position occurs when shaking, tilt etc. for relative position between can body and top ends of cans
In the case of shifting, also can the displacement be absorbed by displacement absorption portion.Therefore, it is possible to inhibit from the tank master connected by interconnecting part
Body, top ends of cans act on the stress increase of the linking part.
7th technical solution according to the present invention or, liquid gas accommodate tank in, the first~the 6th technical side
The interconnecting part in any technical solution in case possesses the inside piping of tubulose.It can also be interconnecting part and then via above-mentioned interior
Portion's piping makes above-mentioned upper gaseous phase region be connected with above-mentioned separate gas phase generating region on the inside of above-mentioned can body.
With this configuration, the space of interconnecting part need not be set in the outside of can body.Therefore, with there is provided can bodies
The situation for being externally formed with interconnecting part afterwards is compared, and can improve the application property of interconnecting part.
8th technical solution according to the present invention, any liquid gas that ship possesses in the first~the 7th technical solution are received
Hold tank.
By this structure, even if in the case where being formed with gas phase in can body because of underway inclination, shake etc.,
Also gas phase can be inhibited to be separately formed.Therefore, it is possible to which the loading rate of liquid gas is not made to inhibit under transfer efficiency with declining
Drop.
Invention effect
Tank is accommodated according to above-mentioned liquid gas, the loading rate of liquid gas can not be made to meet " IGCCode " rule with declining
Fixed condition can inhibit the decline of transfer efficiency.
Description of the drawings
Fig. 1 is the figure of the schematic configuration for the ship for representing the first embodiment of the present invention.
Fig. 2 is the stereogram of the liquid goods tank of the first embodiment of the present invention.
Fig. 3 is the top view of the liquid goods tank of the first embodiment of the present invention.
Fig. 4 is the front view of the liquid goods tank of the first embodiment of the present invention.
Fig. 5 is formed at the definition graph of the independent air pocket in the liquid goods tank of general ship.
Fig. 6 is the front view for being equivalent to Fig. 4 of the variation of the first embodiment of the present invention.
Fig. 7 is the enlarged drawing near the top ends of cans of the liquid goods tank of second embodiment of the present invention.
Fig. 8 is the stereogram of the outside pipe arrangement of the variation of second embodiment of the present invention.
Fig. 9 is the enlarged drawing for being equivalent to Fig. 7 of third embodiment of the present invention.
Specific embodiment
(first embodiment)
Then, the ship of the first embodiment of the present invention is illustrated based on attached drawing.
Fig. 1 is the figure of the schematic configuration for the ship for representing the first embodiment of the present invention.
The ship 1 of present embodiment is transport LPG (liquefied petroleum gas：Liquefied petroleum gas) LPG fortune
Defeated ship.For the ship 1 in order to transport more LPG, the state that LPG can be reduced to volume with cooling liquid is stored in liquid goods
Tank 3 (liquid gas collecting tank).Heat-insulating material is installed in the outer surface of the liquid goods tank.
As shown in Figure 1, it is formed with multiple cargo holds 4 in the inside of the hull 2 of ship 1.Above-mentioned cargo hold 4 is to accommodate liquid goods tank 3
Space.Above-mentioned cargo hold 4 is arranged in a row along ship cephalocaudal direction equipped with multiple.The adjacent cargo hold 4 on ship cephalocaudal direction
Wall 6 is divided to divide along ship cephalocaudal direction.Cargo hold 4 in present embodiment be formed at than hull 2 upper deck 5 on the lower
Position.In the Fig. 1, the ship cephalocaudal direction of hull 2 is depicted with arrows, ship's head is represented with " F " arrow, with " A " arrow
Represent stern direction.
Fig. 2 is the stereogram of the liquid goods tank of the first embodiment of the present invention.Fig. 3 is the first embodiment of the present invention
The top view of liquid goods tank.Fig. 4 is the front view in a state that the liquid goods tank of the first embodiment of the present invention tilts.
As shown in Figures 2 to 4, the liquid goods tank 3 in present embodiment possesses can body 7, top ends of cans 8 and interconnecting part 9.
Can body 7 has the receiving space 10 for accommodating liquid gas inside it.The can body 7 is vertical on beam direction
Section is formed as the so-called square tank of the box of polygon.Can body 7 possesses：Upper wall 11, bottom wall 12, left side wall 13, right side
Wall 14, antetheca 15 and rear wall 16.Can body 7 in present embodiment is also with four to the can body 7 from ship cephalocaudal direction
The mode that angle carries out chamfering has there are four inclined wall 17~20.Can body 7 passes through above-mentioned upper wall 11, bottom wall 12, left side wall 13, the right side
Side wall 14, antetheca 15, rear wall 16 and inclined wall 17~20 and form receiving space 10.
Here, the situation of the constant dimension in the beam direction of liquid goods tank 3 is instantiated in Fig. 1, Fig. 2.But liquid goods tank 3
It is not limited to Fig. 1, shape shown in Fig. 2.In ship 1, the size in the beam direction of hull 2 can occur in bow side and stern-side
Variation.In addition, liquid goods tank 3 needs to ensure volume as big as possible in cargo hold 4.Therefore, in multiple liquid goods tanks 3, especially
It is configured at the bow of hull 2 nearby and the liquid goods tank 3 near stern is formed as left side wall 13, right side wall 14 with along hull 2
The mode of the shape of ship side is tilted or bent.
Top ends of cans 8 is formed as protruding upward from can body 7.The top ends of cans 8 of present embodiment is from the upper wall 11 of can body 7
It is prominent.The top ends of cans 8 has the convex space 21 connected with the receiving space 10 of can body 7 inside it.The tank of present embodiment
Head cover 8 is formed as hollow rectangular-shape.That is, the convex space 21 of rectangular-shape is formed in the inside of top ends of cans.The top ends of cans 8
It is for example square more prominent more up than the upper deck 5 of hull 2 to be configured to end 8a thereon.Be contained in the liquid gas G of liquid goods tank 3 via
The top ends of cans 8 and loaded and unloaded.
Relief valve 23 is configured on top ends of cans 8 (with reference to Fig. 4).The relief valve 23 passes through the internal pressure in can body 7
Valve opening protects liquid goods tank 3 during beyond predetermined pressure.By 23 valve opening of relief valve, and convex space is released to the external of can body 7
21 gas phase.By the releasing of the gas phase, and the internal pressure of can body 7 declines.Here, it is contained in the liquefied gas of liquid goods tank 3
The loading rate of body G, which is set as relief valve 23, will not immerse the loading rate (for example, 98% or so) of liquid phase L.In other words, in top ends of cans
Always there are certain gas phase V on the top of 8 convex space 21.
Fig. 5 is formed at the definition graph of the independent air pocket in the liquid goods tank in general ship.
As shown in figure 5, in the case where cargo containment rate is more than 98%, make to have the liquid goods tank 3 of top ends of cans 8 to be dissipated by the world
(a) condition following as defined in ships carrying liquefied gases construction and equipment Regulation (hereinafter referred to as " IGCCode ") is filled to tilt.
1.5%Lpp trim (bow and stern) and 15 degree of inclinations ... (a)
Here, " Lpp " refers to the length being mounted between the bow after-perpendicular of the ship 1 of liquid goods tank 3.
Then, for example, it is possible in liquid when shake, inclination, temperature when ship 1 navigates by water rise when various major reasons
Independent air pocket (gas phase) P is generated in the receiving space 10 of goods tank 3.Here, " independent " refer to air pocket P not by gas with
The state of other environmental communications." other environment " refers to the gas phase V of the convex space 21 of top ends of cans 8 or the outside of liquid goods tank 3 etc..
In " IGCCode " in the case where the loading rate of liquid gas G is more than 98%, forbid generating above-mentioned independent
Air pocket P.
As shown in Figures 2 to 4, interconnecting part 9 makes upper gaseous phase section existing in convex space 21, liquid gas G gas phase V
It is in domain and receiving space 10, can generate and the separate gas phase generating region of the air pocket P of the gas phase V independences of convex space 21 connects
It is logical.Here, " the separate gas phase generating region that can generate independent air pocket P " refers to having in the case of no interconnecting part 9
It is likely to form the region of independent air pocket P.That is, even if the region is also in the state of air pocket P is not formed, " separate gas phase generates
Region "." upper gaseous phase region " makes its shape change according to 2 inclined direction of hull (left or right), but always
There are gas phase V.Upper gaseous phase region when the interconnecting part 9 that left side is configured on beam direction makes hull 2 tilt to the right
It is connected with the separate gas phase generating region in left side.In the same manner, be configured on the beam direction right side interconnecting part 9 make hull 2 to
Upper gaseous phase region during left side is connected with the separate gas phase generating region on right side.
In fig. 2, it has been more than in the state of 98% in cargo containment rate, has been represented with marking grid under the conditions of above-mentioned (a)
The gas phase of liquid gas G and the interface of liquid phase.The separate gas phase generating region generated under the conditions of above-mentioned (a) is according to liquid goods
The shape of tank 3, loading rate of liquid gas G etc. and change.The separate gas phase generating region can pass through the shape of definite liquid goods tank 3
Shape, and determine the desired value of the loading rate of liquid gas G, and such as being obtained by simulation.
In the receiving space 10 than can body 7, place makes the upper gaseous phase of top ends of cans 8 to the interconnecting part 9 of present embodiment in the outer part
Region is connected with the separate gas phase generating region of can body 7.In addition, the interconnecting part 9 of present embodiment has the sky for forming channel-shaped
Between slot forming portion 24.There are two slot forming portions 24 for the tool of interconnecting part 9.Via the space for the channel-shaped that above-mentioned slot forming portion 24 is formed
And the upper gaseous phase region of top ends of cans 8 and the separate gas phase generating region of can body 7 can be connected.
The outside extension from the side 8b of top ends of cans 8 to beam direction respectively of the slot forming portion 24 of present embodiment.These slots
Its 7 lateral receiving space 10 of can body of forming portion 24 is open.From the inside of can body 7, the sky that is formed by slot forming portion 24
Between be formed as channel-shaped.When tilting ship 1 with above-mentioned (a) condition, which can be connected by its internal gas phase
The air pocket P of the gas phase V and can body 7 of logical top ends of cans 8.Here, the well width bottom line of slot forming portion 24 have can be at it
Inside forms the size of gas phase.The length bottom line that slot forming portion 24 extends along beam direction has can be from top ends of cans
8 reach the length of separate gas phase generating region.The height ratio of slot forming portion 24 makes liquid level during ship inclination with (a) condition
Upper end height.
The situation that above-mentioned slot forming portion 24 extends along beam direction is illustrated.But slot forming portion 24 is not limited to
Extend along beam direction.For example, ship cephalocaudal direction or bow tail are suitably selected to slot forming portion 24 according to the shape of liquid goods tank 3
Direction of the centre in direction and beam direction etc..In the above-described embodiment, to possessing the situation of two slot forming portions 24
It is illustrated.But it is also possible to the slot forming portion 24 of three or more is set.For example, in figure 3 as shown in double dot dash line,
It can centered on top ends of cans 8 and radially configured slot forming portion 24.The only table of slot forming portion 24 shown in the double dot dash line of Fig. 3
Show an example of the extending direction of slot forming portion 24.Become according to the position of separate gas phase generating region according to the shape of liquid goods tank 3
Change, therefore the length of these slot forming portions 24 extension is set in optimal position according to the position of separate gas phase generating region
It puts.
Here, in receiving space 10, there are the highest position of probability of air pocket P be the upper wall 11 by can body 7 with inclining
The position of the corner 7a for the upside that skew wall 17,18 is formed.Therefore, slot forming portion 24 is formed from top ends of cans 8 to corner 7a the most may be used
It leans on.But in this case, the distance away from top ends of cans 8 is elongated.Therefore, it is necessary to form slot forming portion 24 longer, in cost
It is unfavorable with application property aspect.Therefore, in the present embodiment, by simulate etc. separate gas phase generating region is obtained, than
Corner 7a causes the grooves to portion 24 by the position of 8 side of top ends of cans and is connected with separate gas phase generating region.
In addition, it is configured at the top ends of cans 8 in present embodiment in the upper wall 11 on ship cephalocaudal direction and beam direction
Centre is illustrated in case of portion.But the configuration on the ship cephalocaudal direction of top ends of cans 8 and beam direction is not limited to center
Portion.For example, also top ends of cans 8 is being configured than position of the central portion by bow side, stern-side sometimes.In this case, with consideration
The mode of configuration relation between top ends of cans 8 and separate gas phase generating region sets slot forming portion 24.
Therefore, according to above-mentioned first embodiment, the convex space 21 for being present in top ends of cans 8 can be made by interconnecting part 9
Upper gaseous phase region is connected with the separate gas phase generating region of the receiving space 10 of can body 7.Therefore, it is possible to inhibit in can body
Issuable air pocket P is independent in 7 receiving space 10.As a result, can not make liquid gas G loading rate decline it is full
Condition as defined in foot " IGCCode ".Thereby, it is possible to inhibit the decline of transfer efficiency.
It is in addition, true in convex space 21 in a manner that relief valve 23 will not immerse liquid phase L in the convex space 21 of top ends of cans 8
Possess gas phase V.Therefore, even if the receiving space 10 in can body 7 generates air pocket P, can also be connected by interconnecting part 9 convex
The gas phase V in the space 21 and air pocket P of receiving space 10.Therefore, as long as relief valve 23 works, you can by the air pocket of receiving space 10
The gas of P is discharged to the external of can body 7.
In addition, by setting interconnecting part 9 in the external of can body 7, and shape that can easily pair with existing liquid goods tank
Identical liquid goods tank 3 adds interconnecting part 9.It is complicated therefore, it is possible to inhibit the design of liquid goods tank 3.
In addition, interconnecting part 9 is made of the slot forming portion 24 for being formed as channel-shaped, so as to make the setting of setting interconnecting part 9
Space is Min..Therefore, by setting interconnecting part 9, and the tankage size that can inhibit liquid goods tank 3 declines.
(variation of first embodiment)
Fig. 6 is the front view for being equivalent to Fig. 4 of the variation of the first embodiment of the present invention.
In the above-described first embodiment, to the slot forming portion 24 for forming interconnecting part 9 is formed as the situation of rectangular-shape
It is illustrated.But the shape of slot forming portion 24 is not limited to rectangular-shape.For example, it is also possible to as shown in fig. 6, slot is formed
Portion 24 is formed as seeing from ship cephalocaudal direction
Examine triangular shape.In the situation of the triangular shape landform grooving forming portion 24 so from ship cephalocaudal direction
Under, it is identical with the slot forming portion 24 of above-mentioned first embodiment, also can the gas phase V of convex space 21 be connected with receiving by gas phase
Hold the air pocket P in space 10.In the case where slot forming portion 24 is formed as rectangular shape as above-mentioned first embodiment,
It is favourable in terms of the easiness of work.
(second embodiment)
Then, second embodiment of the present invention is illustrated based on attached drawing.The second embodiment and above-mentioned first
Embodiment is compared, and only the shape of interconnecting part 9 is different.Therefore, in the explanation of the second embodiment, pair with the first embodiment party
The identical part of formula marks identical reference numeral to illustrate, and the repetitive description thereof will be omitted.
Fig. 7 is the enlarged drawing near the top ends of cans of the liquid goods tank of second embodiment of the present invention.
As shown in fig. 7, the liquid goods tank 203 of the second embodiment possesses：Can body 7, top ends of cans 8 and interconnecting part 209.
Interconnecting part 209 is identical with the interconnecting part 9 of above-mentioned first embodiment, makes the gas of liquid gas G in convex space 21
It is in upper gaseous phase region existing for phase V and receiving space 10, can generate with the air pocket P's of the gas phase V independences of convex space 21
Separate gas phase generating region connects.
In the receiving space 10 than can body 7, place makes the top gas of top ends of cans 8 to the interconnecting part 209 of present embodiment in the outer part
Alpha region is connected with the separate gas phase generating region of can body 7, identical with the interconnecting part of first embodiment 9 in this.
The interconnecting part 209 of the embodiment possesses the outside pipe arrangement 224 of tubulose.Here, in the figure 7, in order to illustrate conveniently,
An outside pipe arrangement 224 in multiple outside pipe arrangements 224 is illustrated only, and the figure of outside pipe arrangement 224 in addition is omitted
Show (Fig. 9 is also identical).Interconnecting part 209 makes upper gaseous phase region existing for the gas phase V of convex space 21 via these outside pipe arrangements 224
It is connected with the separate gas phase generating region that can generate air pocket P of receiving space 10.
The outside pipe arrangement 224 of the embodiment in the inclination of above-mentioned (a) condition, with it is parallel with the liquid level of liquid phase L and with
Beeline connects upper gaseous phase region and the mode of separate gas phase generating region is formed as linear.The mouth of outside pipe arrangement 224
Footpath bottom line has being capable of the bore of degree that is moved between gas phase V and air pocket P of supplied gas.
Here, be illustrated to said external piping 224 is arranged to the situation parallel with liquid level, but outside pipe arrangement
224 setting angle is not limited to above-mentioned setting angle.In addition, outside pipe arrangement 224 is not limited to linearly.For example, outside pipe arrangement 224
It can also be formed as curve-like.
In addition, outside pipe arrangement 224 is identical with above-mentioned slot forming portion 24, it is not limited to extend along beam direction.For example, according to liquid
The shape of goods tank 3 and ship cephalocaudal direction or the centre in ship cephalocaudal direction and beam direction suitably are selected to outside pipe arrangement 224
Direction etc..In addition, in the above-described 2nd embodiment, the situation for possessing two outside pipe arrangements 224 is illustrated.But
It is that more than two outside pipe arrangements 224 can also be set.Can also be identical with above-mentioned slot forming portion 24, centered on top ends of cans 8
And radially configure outside pipe arrangement 224.Since the position of separate gas phase generating region changes according to the shape of liquid goods tank 3,
Therefore the length that said external piping 224 extends is set to optimal position according to the position of separate gas phase generating region.
Therefore, according to above-mentioned second embodiment, since interconnecting part 209 can be formed by the outside pipe arrangement 224 of tubulose,
Therefore the cost of part can be inhibited, and can easily constructed.
(variation of second embodiment)
Fig. 8 is the stereogram of the outside pipe arrangement of the variation of second embodiment of the present invention.
As shown in figure 8, the outside pipe arrangement 224 of the interconnecting part 209 of the variation of the second embodiment possesses displacement absorption
Portion 30.The displacement absorption portion 30 absorbs relative displacement of the top ends of cans 8 compared with can body 7.
More particularly, outside pipe arrangement 224 is in top ends of cans connecting tube 31 and can body connecting tube
Having between 32 makes the displacement absorption portion 30 that the top ends of cans connecting tube 31 is connected with can body connecting tube 32.
Top ends of cans connecting tube 31 extends from the side 8b of top ends of cans 8 along beam direction.The end of top ends of cans connecting tube 31 is (not
Diagram) in the gas phase V split sheds of above-mentioned convex space 21.Therefore, top ends of cans connecting tube 31 is left 11 ground of upper wall of can body 7 and is matched somebody with somebody
It puts.
Can body connecting tube 32 along can body 7 upper wall 11 and along beam direction (in Fig. 8, by left arrow, right arrow table
The direction shown) extension.(in Fig. 8, represented by lower arrow direction) prolongs downwards deviously for the end of the can body connecting tube 32
It stretches.The end of can body connecting tube 32 is in the separate gas phase generating region inner opening of the receiving space 10 of above-mentioned can body 7.The tank
Body connecting pipe 32 is with above-mentioned top ends of cans connecting tube 31 on vertical direction (in Fig. 8, by upward arrow, the direction of lower arrow expression)
The configuration of offset ground.In fig. 8, ship cephalocaudal direction is by the direction of preceding arrow, the expression of rear arrow.
Displacement absorption portion 30 makes top ends of cans connecting tube 31 be connected with can body connecting tube 32.Displacement absorption portion 30 has level
Portion 33 and vertical component effect 34.Horizontal part 33 is extended in a manner of intersecting with top ends of cans connecting tube 31 on ship cephalocaudal direction.Vertical component effect
34 are extended in a manner of intersecting in the up-down direction with horizontal part 33 and can body connecting tube 32 this two side.
Therefore, according to the variation of above-mentioned second embodiment, horizontal part 33 easily exists compared with top ends of cans connecting tube 31
Vertical direction and beam side's upward, vertical component effect 34 is compared with can body connecting tube 32 easily in ship cephalocaudal direction and beam side
Upward.By above-mentioned flexure, ship cephalocaudal direction between top ends of cans 8 and can body 7, beam direction and up and down can be absorbed
Relative displacement on direction.As a result, the situation with point-blank setting outside pipe arrangement 224 between top ends of cans 8 and can body 7
It compares, the stress generated due to above-mentioned relative displacement can be inhibited in can body 7, top ends of cans 8.
(the 3rd embodiment)
Then, third embodiment of the present invention is illustrated based on attached drawing.3rd implements
Mode is different from the configuration of the piping of above-mentioned second embodiment.Therefore, pair portion identical with second embodiment
Minute mark notes identical reference numeral to illustrate, and the repetitive description thereof will be omitted.
Fig. 9 is the enlarged drawing for being equivalent to Fig. 7 of third embodiment of the present invention.
As shown in figure 9, the interconnecting part 209 of the 3rd embodiment has internal piping 324.The inside piping 324 can
Connect upper gaseous phase region existing for the gas phase V of convex space 21 and separate gas phase generation in receiving space 10, there are air pocket P
Regional connectivity.
Internal piping 324 is formed as tubulose.The inside piping 324 is all configured at the inside of liquid goods tank 303.Internal piping
324 are formed as the upper wall 11 of the side 8b and can body 7 along top ends of cans 8, and the angle with being formed by side 8b and upper wall 11
Portion 36 is accordingly bent into L-shaped.The inside piping 324 be fixed on protruded inwardly from the inner surface of liquid goods tank 3 it is multiple small
Bone 37.Ossiculum 37 is fixed in this way, and the inner surface 3a of liquid goods tank 3 is left in internal piping 324.
In the case that inclined with above-mentioned (a) condition, the first end 324a of internal piping 324 is in gas phase V inner openings.This
Outside, when being tilted with above-mentioned (a) condition and being formed with air pocket P in separate gas phase generating region, the second end of internal piping 324
Portion 324b is in air pocket P inner openings.That is, can gas phase V and air pocket P be connected by the inside piping 324.
Therefore, according to above-mentioned 3rd embodiment, the space of interconnecting part 9 need not be set in the outside of can body 7.Therefore,
Compared with being externally formed with the situation of interconnecting part 9 after there is provided can body 7, the application property of interconnecting part 9 can be improved.
The present invention is not limited to the above embodiment, without departing from the spirit and scope of the invention, comprising to above-mentioned reality
The mode of applying applies technical solution obtained from various changes.That is, specific shape, structure cited by embodiment etc. are only one
A example can be changed suitably.
For example, in the respective embodiments described above, with possess it is between liquid goods tank 3,203,303 and hull 2 with gap,
It is illustrated in case of so-called independent liquid goods tank 3,203,303.But the shape of liquid goods tank 3,203,303 is not
Be limited to above-mentioned liquid goods tank 3,
203rd, 303 shape.As long as the shape that top ends of cans 8 protrudes upward, for example, it is also possible on hull 2
The can body 7 of liquid goods tank 3,203,303 is integrally formed.As long as in addition, the can body 7 of liquid goods tank 3,203,303 is being freighted
Rate more than 98% and in above-mentioned (a) condition tilt and may have separate gas phase generating region shape, for example,
Can be spherical.In addition, it is by anchor ring, barrel surface and circular cone as the shape of can body 7 or the deformation type of spherical shape
The can body 7 for the shape that at least one and spherical surface in face is combined.
In addition, the ship 1 of the above embodiment is illustrated as an example of the situation of LPG cargo ships.But for ship
Oceangoing ship 1, is stored in liquid goods tank 3,203,303 and carries out freight and be not limited to LPG.Can also be LNG (Liquefied
Natural Gas：Liquefied natural gas) etc..
Reference sign
1 ship
2 hulls
3rd, 203,303 liquid goods tanks (liquid gas collecting tank)
3a inner surfaces
4 freight houses
5 upper decks
6 partition walls
7 can bodies
7a corners
8 top ends of cans
8a upper ends
8b sides
9 interconnecting parts
10 receiving spaces
11 upper walls
12 bottom walls
13 left side walls
14 right side walls
15 antethecas
16 rear walls
17 inclined walls
18 inclined walls
19 inclined walls
20 inclined walls
21 convex spaces
23 relief valves
24 slot forming portions
30 displacement absorption portions
31 top ends of cans connecting tubes
32 can body connecting tubes
33 horizontal parts
34 vertical component effects
36 corners
37 ossiculums
209 interconnecting parts
224 outside pipe arrangements
324 inside pipings
Claims (4)
1. a kind of liquid gas accommodates tank, possess：
In the can body of the internal receiving space for having and accommodating liquid gas；
It is protruded upward from the can body and in the top ends of cans of the internal convex space for having and being connected with the receiving space；And
Interconnecting part makes upper gaseous phase region existing for the gas phase of in the convex space, described liquid gas accommodate sky with described
Between in, can generate and connected with the separate gas phase generating region of the gas phase of the gas phase independence of the convex space,
The interconnecting part has the slot forming portion in the space for forming channel-shaped, and makes the upper gaseous phase section via the slot forming portion
Domain is connected with the separate gas phase generating region.
2. liquid gas according to claim 1 accommodates tank, wherein,
The liquid gas accommodates tank and possesses relief valve, when exceeding predetermined pressure in the inside of the can body, the relief valve
The gas phase of the convex space can be released to the external of the can body.
3. liquid gas according to claim 1 accommodates tank, wherein,
The interconnecting part is than the can body, place makes the upper gaseous phase region and the separate gas phase generating region in the outer part
Connection.
4. a kind of ship possesses liquid gas according to any one of claims 1 to 3 and accommodates tank.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015067246A JP6299037B2 (en) | 2015-03-27 | 2015-03-27 | Liquefied gas storage tank and ship |
| JP2015-067246 | 2015-03-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106005271A CN106005271A (en) | 2016-10-12 |
| CN106005271B true CN106005271B (en) | 2018-05-22 |
Family
ID=57082622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510713161.XA Active CN106005271B (en) | 2015-03-27 | 2015-10-28 | Liquid gas accommodates tank and ship |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6299037B2 (en) |
| KR (1) | KR101766044B1 (en) |
| CN (1) | CN106005271B (en) |
| PH (1) | PH12015000369B1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764401A (en) * | 2017-02-24 | 2017-05-31 | 江苏宏博机械制造有限公司 | A kind of lightweight high intensity pressure resistant type pressure pan |
| JP2019039440A (en) * | 2017-08-22 | 2019-03-14 | 三井Ｅ＆Ｓ造船株式会社 | Liquefied gas storage tank structure, floating structure, and release method for internal pressure of storage tank |
| KR20220150923A (en) * | 2020-03-26 | 2022-11-11 | 삼성중공업 주식회사 | Liquefied gas storage tank system, its design and manufacturing method |
| JP2021160619A (en) * | 2020-04-01 | 2021-10-11 | 川崎重工業株式会社 | Ship |
| CN113212664A (en) * | 2021-06-09 | 2021-08-06 | 江南造船(集团)有限责任公司 | Air chamber communication structure and liquefied gas carrier of C type fluid reservoir |
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| JPS59164286A (en) * | 1983-03-10 | 1984-09-17 | Tounen Tanker Kk | Recovering apparatus for gas in cargo tank of ship |
| CN1849242A (en) * | 2003-07-17 | 2006-10-18 | 沙特阿拉伯石油公司 | Gas expansion trunk for marine vessels |
| CN103398284A (en) * | 2007-02-12 | 2013-11-20 | 大宇造船海洋株式会社 | LNG tank |
| CN103562061A (en) * | 2011-05-25 | 2014-02-05 | 三星重工业株式会社 | Storage tank for liquefied materials and ship comprising same |
| CN103764494A (en) * | 2011-08-13 | 2014-04-30 | 森元信吉 | LNG carrier |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5649699U (en) * | 1979-09-25 | 1981-05-01 | ||
| JPH03124100U (en) * | 1990-03-29 | 1991-12-17 | ||
| JPH08310482A (en) * | 1995-05-18 | 1996-11-26 | Hitachi Zosen Corp | Substitute gas feeding part structure of storage tank in transport ship |
| US6637469B2 (en) * | 2002-03-19 | 2003-10-28 | Air Products And Chemicals, Inc. | Product delivery system for stationary or portable bulk containers |
| JP4562201B2 (en) * | 2007-10-24 | 2010-10-13 | ツネイシホールディングス株式会社 | Air vent pipe |
| JP2009119903A (en) * | 2007-11-12 | 2009-06-04 | Universal Shipbuilding Corp | Air vent device of fuel tank and marine vessel |
| JP5148319B2 (en) * | 2008-02-27 | 2013-02-20 | 三菱重工業株式会社 | Liquefied gas reliquefaction apparatus, liquefied gas storage equipment and liquefied gas carrier equipped with the same, and liquefied gas reliquefaction method |
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2015
- 2015-03-27 JP JP2015067246A patent/JP6299037B2/en active Active
- 2015-10-08 KR KR1020150141575A patent/KR101766044B1/en active IP Right Grant
- 2015-10-27 PH PH12015000369A patent/PH12015000369B1/en unknown
- 2015-10-28 CN CN201510713161.XA patent/CN106005271B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59164286A (en) * | 1983-03-10 | 1984-09-17 | Tounen Tanker Kk | Recovering apparatus for gas in cargo tank of ship |
| CN1849242A (en) * | 2003-07-17 | 2006-10-18 | 沙特阿拉伯石油公司 | Gas expansion trunk for marine vessels |
| CN103398284A (en) * | 2007-02-12 | 2013-11-20 | 大宇造船海洋株式会社 | LNG tank |
| CN103562061A (en) * | 2011-05-25 | 2014-02-05 | 三星重工业株式会社 | Storage tank for liquefied materials and ship comprising same |
| CN103764494A (en) * | 2011-08-13 | 2014-04-30 | 森元信吉 | LNG carrier |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20160115660A (en) | 2016-10-06 |
| PH12015000369A1 (en) | 2017-05-08 |
| CN106005271A (en) | 2016-10-12 |
| JP2016185780A (en) | 2016-10-27 |
| KR101766044B1 (en) | 2017-08-07 |
| PH12015000369B1 (en) | 2017-05-08 |
| JP6299037B2 (en) | 2018-03-28 |
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Effective date of registration: 20180723 Address after: Kanagawa Patentee after: MITSUBISHI Shipbuilding Corporation Address before: Tokyo, Japan, Japan Patentee before: Mit-subishi Heavy Industries Ltd. |