CN107428400B - Liquid gas storage tank peculiar to vessel and the liquefied gas carry vessel for having the liquid gas storage tank peculiar to vessel - Google Patents

Liquid gas storage tank peculiar to vessel and the liquefied gas carry vessel for having the liquid gas storage tank peculiar to vessel Download PDF

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Publication number
CN107428400B
CN107428400B CN201580078317.XA CN201580078317A CN107428400B CN 107428400 B CN107428400 B CN 107428400B CN 201580078317 A CN201580078317 A CN 201580078317A CN 107428400 B CN107428400 B CN 107428400B
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CN
China
Prior art keywords
tank body
vessel
tank
gas storage
liquid gas
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Expired - Fee Related
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CN201580078317.XA
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Chinese (zh)
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CN107428400A (en
Inventor
松原直哉
森长谦太
吉田巧
清末孝昭
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Kawasaki Motors Ltd
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Kawasaki Jukogyo KK
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00Vessels not under pressure
    • F17C3/02Vessels not under pressure with provision for thermal insulation
    • F17C3/025Bulk storage in barges or on ships
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01Shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/03Mixtures
    • F17C2221/032Hydrocarbons
    • F17C2221/033Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • F17C2270/0102Applications for fluid transport or storage on or in the water
    • F17C2270/0105Ships

Abstract

Liquid gas storage tank peculiar to vessel, for around the liquid gas storage tank peculiar to vessel of vertical pressure vessel substantially symmetrical about its central axis, comprising: the upside tank body with lower end being open downwards;The downside tank body with upper end being open upwards;It is consistent with the track indicated in following formula (1) by the orthogonal cross-sectional shape of the central axis of side's tank body in upside tank body and downside tank body: ︱ x/r1m+ ︱ y/r2m=1 ... (1), wherein r1It is upper end or the radius of lower end of side's tank body, r2It is the height of side's tank body, m is the constant of satisfaction 2 < m < 3.

Description

Liquid gas storage tank peculiar to vessel and the liquefied gas carry vessel for having the liquid gas storage tank peculiar to vessel
Technical field
The present invention relates to the liquid gas storage tanks peculiar to vessel of storage liquefied gas and the liquefied gas for having the liquid gas storage tank peculiar to vessel to remove Transport ship.
Background technique
In the past, in order to carry the liquefied gas such as liquefied natural gas (hereinafter referred to as " LNG "), using being loaded with multiple liquid gas storage tanks Liquefied gas carry vessel.The liquid gas storage tank of loading vessel, such as independent spherical tank, film (membrane) type are carried as liquefied gas Tank etc. is well known.For example, Patent Document 1 discloses carry LNG LNG carry loading vessel independent spherical tank (with It is known as " spherical tank " down).
As Fig. 1 and spherical tank shown in Fig. 2 are from the independent pressure vessel of hull, and by from hull in patent document 1 Basic deck (foundation deck) be supported in hull to the skirt that vertical direction extends.LNG carries loading vessel Tank, the either tank of which kind of form, although having the resistance to pressure and thermal insulation of the LNG for storing extremely low temperature under high pressure conditions, But it is different according to the form merits and demerits of tank.For example, spherical tank is compared with the tank of other forms, due to the shape of tank Be positive spherical, have many advantages, such as may without inside design reinforcement material, can exclude crack occurring source stress concentrate.
Existing technical literature:
Patent document:
Patent document 1: No. 2009/084136 bulletin of International Publication No..
Summary of the invention
Problems to be solved by the invention:
But in recent years, there is this urgent expectation of carrying capacity for wanting to increase liquefied gas to same big hull.Due to Spherical tank space efficiency utilization for the volume of cabin is low, replaces spherical tank to cope with this urgent expectation, The size (especially beam) for maintaining hull on one side, places hope on the new shape that can increase liquefied gas carrying capacity on one side Tank.However, design has the advantages that the tank of spherical tank is highly difficult.
So the object of the present invention is to provide the carrying capacities that also can increase liquefied gas than spherical tank, while can make to have The easy liquid gas storage tank peculiar to vessel of the design of spherical tank advantage and the liquefied gas carry vessel for having the liquid gas storage tank peculiar to vessel.
The means solved the problems, such as:
It to solve the above-mentioned problems, is as the pressure substantially symmetrical about its central axis around vertical about liquid gas storage tank peculiar to vessel of the invention The liquid gas storage tank peculiar to vessel of force container, comprising: the upside tank body with lower end being open downwards;What is be open upwards has The downside tank body of upper end;Pass through the vertical of the central axis of side's tank body in the upside tank body and the downside tank body Cross sectional shape is consistent with the track indicated in following formula (1): ︱ x/r1m+ ︱ y/r2m=1 ... (1)
Wherein, r1It is the upper end or the radius of the lower end of the party tank body, r2It is the party tank body Height, m are the constants of satisfaction 2 < m < 3.
According to above structure, since the value of the m of setting formula (1) is greater than 2, side's tank body formed from tank center obliquely upward or The shape of obliquely downward bulging.By means of this, tankage size can be increased than just spherical tank.When the value of the m of formula (1) becomes excessive, The tank shape of one side's tank body side is close to cylindrical shape, as a result the aggregate for needing to reinforce flat part (aggregate) etc..But in above structure, the value of the m of formula (1) is set less than 3, so can be realized without reinforcing material or lack Amount reinforces the structure that material is the pressure of tolerable liquefied gas.Also, the trajectory tortuosity indicated in formula (1) is continuously, so can It is easy the design with spherical tank.
It is also possible in above-mentioned liquid gas storage tank peculiar to vessel, passes through another party's tank in the upside tank body and the downside tank body The orthogonal cross-sectional shape of the central axis of body is consistent with the track indicated in following formula (2):
︱ x/r1n+ ︱ y/r3n=1 ... (2)
Wherein, r3It is the height of another party's tank body, n is the constant of satisfaction 2 < n < 3.According to this structure, due to setting formula (2) value of n be greater than 2, another party's tank body formed from tank center obliquely upward or obliquely downward bulging shape.By means of this, energy Enough further increase tankage size.When the value of the n of formula (2) becomes excessive, the tank shape of another party's tank body side close to cylindrical shape, As a result the aggregate etc. to need to reinforce flat part.But set formula (2) n value less than 3, so can be realized It is the structure that can tolerate the pressure of liquefied gas without material or a small amount of material of reinforcing is reinforced.Also, the trajectory tortuosity indicated in formula (2) is continuous , so the design with spherical tank can be made to be easy.
It can also be with the r of formula (1) and formula (2)1、r2And r3Meet r1=r2=r3.At this point, due to upside tank body and downside tank body Opening portion radius r1, downside tank body high r2And the high r of upside tank body3Length it is identical, so if upside tank body and The height of coupling part between the tank body of downside is almost without if, then width and height are almost the same with previous spherical tank. Therefore, the design about hull can be carried out similarly with previous spherical tank.
It can also be in r1=r2=r3In the case where, the m of formula (1) and the n of formula (2) meet m=n.At this point, on due to that can make Side tank body is identical as the shape of downside tank body, so the manufacture of liquid gas storage tank peculiar to vessel becomes easy.
It can also be with the r of formula (1)1And r2Meet 0.9≤r2/ r1≤1.1.At this point, the variation of the trajectory tortuosity of formula (1) is not Can terrifically it become larger, so further having the advantages that the design of spherical tank becomes possible.
It is also possible in the liquid gas storage tank peculiar to vessel, includes connection institute between the upside tank body and the downside tank body State the cylinder of upside tank body and the downside tank body extended in vertical direction.According to this structure, can with from bridge Visibility and load the liquid gas storage tank peculiar to vessel liquefied gas carry vessel position of centre of gravity it is related allow in the range of increase circle The height of cylinder, so as to increase the liquefied gas carrying capacity of liquid gas storage tank.
Invention effect:
In accordance with the invention it is possible to provide the carrying capacity that also can increase liquefied gas than spherical tank, while it can make that there is spherical shape The easy liquid gas storage tank peculiar to vessel of the design of tank advantage and the liquefied gas carry vessel for having the liquid gas storage tank peculiar to vessel.
Detailed description of the invention
Fig. 1 is the side view of the liquefied gas carry vessel about implementation form of the present invention;
Fig. 2 is the top view of the liquefied gas carry vessel about implementation form of the present invention;
Fig. 3 is the cross-sectional view from III-III arrow direction of liquefied gas carry vessel shown in fig. 1;
Fig. 4 is the figure for showing the variation of liquid gas storage tank peculiar to vessel.
Specific embodiment
Hereinafter, according to the liquid gas storage tank peculiar to vessel about a kind of implementation form of the present invention and being loaded with the liquefied gas peculiar to vessel The design drawing of the liquefied gas carry vessel of tank is illustrated.
Fig. 1 and Fig. 2 is the side view and top view of the liquefied gas carry vessel 1A about implementation form of the present invention.Use liquefied gas The liquefied gas that carry vessel 1A is carried, e.g. LNG or liquified hydrogen.The liquefied gas carry vessel 1A of the implementation form is in hull 20 Captain direction has multiple (having 4 in the example) liquid gas storage tanks peculiar to vessel (hereinafter, only claiming " tank ") 10.Also, in the implementation form Liquefied gas carry vessel 1A in, place i.e. bridge for steering a ship in navigation is arranged in rear position (left side of Fig. 1) 21.As shown in Figure 1, the top of tank 10 protrudes upwards from the upper deck 22 of hull 20.
Fig. 3 is the cross-sectional view for the structure for showing the tank 10 loaded in liquefied gas carry vessel 1A and supporting the tank 10.In ship The vertical logical setting of next door 25 of a pair that the two lateral edge side plate 24 of beam direction of body 20 extends in captain direction is from a pair of of shipboard In outside plate 24 to predetermined distance, the configuration of tank 10 is between the vertical logical next door 25 of a pair.
The basic deck 26 of tank 10 is supported in setting by skirt 27 around tank 10.Basic deck 26 is arranged than hull Upper deck 22 on 20 is on the position of the specified altitude of lower section, the upper surface connection on the basis deck 26 vertical logical next door 25 lower end.Basic deck 26 is set in the form in beam direction connection side plate 24.Skirt 27 is cylindrical shape, skirt The lower end on side 27 is connect with the upper surface on basic deck 26, and the upper end of skirt 27 is connect with the outer peripheral surface of tank 10.On basis It is arranged on the position of tank 10 in deck 26, the setting circular open portion in the same size with the diameter of skirt 27.
Also, being alow arranged along Bottom Plate 23 above the predetermined distance of outside plate 23 in captain direction in the lower section of tank 10 The internal backplane (inner bottom plate) 28 of extension.And the both ends in the beam direction of internal backplane 28 and basic deck A pair of of bottom edge deck board (bilge hopper plate) 29 is set between 26.The bottom edge deck board 29 in captain direction also to extend Form setting, bottom edge deck board 29 are tilted from the both ends of internal backplane 28 to the outside in beam direction.
Secondly, the tank 10 for the implementation form is illustrated.Tank 10 is held around the symmetrical pressure of vertical central axis C Device.Tank 10 includes the lower portion to form tank 10, i.e., the downside tank body 12 being open upwards;With formed tank 10 upper portion, The upside tank body 13 being open downwards;In the implementation form, tank 10 is directly connected to by downside tank body 12 and upside tank body 13.Under The respective outer surface of side tank body 12 and upside tank body 13 is covered with heat-insulating material (not shown).
Downside tank body 12 be it is bowl-shape, have cricoid upper end 12a.The horizontal cross sectional geometry of downside tank body 12 is ring-type, Orthogonal cross-sectional shape by the downside tank body 12 of central axis C is consistent with the track indicated in following formula (1):
︱ x/r1m+ ︱ y/r2m=1 ... (1)
In formula (1), r1It is the radius of the upper end 12a of downside tank body 12, r2It is the height of downside tank body 12, the value of m is, for example, 2.5。
It is described in more detail, then central axis C is set as y-axis being positive upwards with vertical, the upper of downside tank body 12 will be passed through When the straight line orthogonal with central axis C is set as x-axis on the horizontal plane of end 12a, pass through the vertical of the downside tank body 12 of central axis C Cross sectional shape is consistent with the track of Range Representation of y≤0 in above-mentioned formula (1).
The value of the m of formula (1) is not limited only to 2.5, or meets the constant arbitrary value of 2 < m < 3.Since the value of m is greater than 2, therefore the orthogonal cross-sectional shape of downside tank body 12 becomes the shape oliquely downward bloated from the center of tank 10.
Upside tank body 13 is that inversion is bowl-shape, has cricoid lower end 13a.The horizontal cross sectional geometry of upside tank body 13 is ring Shape, the orthogonal cross-sectional shape by the upside tank body 13 of central axis C are consistent with the track indicated in following formula (2):
︱ x/r1n+ ︱ y/r3n=1 ... (2)
In formula (2), r1It is the radius of the lower end 13a of upside tank body 13, r3It is the height of upside tank body 13, the value of n is, for example, 2.5。
It is described in more detail, then central axis C is set as y-axis being positive upwards with vertical, it will be by under upside tank body 13 When the straight line orthogonal with central axis C is set as x-axis on the horizontal plane of end 13a, pass through the vertical of the upside tank body 13 of central axis C Cross sectional shape is consistent with the track of Range Representation of y >=0 in above-mentioned formula (2).
The value of the n of formula (2) is not limited only to 2.5, or meets the constant arbitrary value of 2 < n < 3.Since the value of n is greater than 2, therefore the orthogonal cross-sectional shape of upside tank body 13 becomes the shape bloated obliquely upward from the center of tank 10.Also, upside tank body The radius r of 13 lower end 13a1With the radius r of the upper end 12a of downside tank body 121For identical value.
In the implementation form, the radius r of downside tank body 12 and the respective opening portion of upside tank body 131, downside tank body 12 height r2And the high r of upside tank body 133For equal length.That is, the r of formula (1) and formula (2)1、r2And r3Meet r1=r2=r3
Cover 31 is supported in upper deck 22.The configuration of cover 31 is in the outside of tank 10 from upside tank body 13 to interval only predetermined distance Position, it is identical as the shape of upside tank body 13.It is different from the shape of upside tank body 13 to be also possible to cover 31.
From the description above, the orthogonal cross-sectional shape in the tank 10 by the downside tank body 12 of central axis C and the formula (1) track indicated in is consistent.By compared with spherical tank 40 previous shown in chain-dotted line in Fig. 3 also it is found that due to formula (1) value of m is greater than 2, and tank 10 forms the shape oliquely downward bloated from the center of tank 10 compared with spherical tank 40.By means of This, can effectively utilize tank 10 and hull 20(such as internal backplane 28 or bottom edge deck board 29) between space, increase tank hold Amount.
Also, the shape of 10 lower part of tank is close to cylindrical shape when the value of the m of formula (1) becomes excessive, as a result needing to flat The aggregate etc. that smooth position is reinforced.However, due to setting formula (1) m value less than 3, so can be realized without reinforce material or It is a small amount of to reinforce the structure that material is the pressure of tolerable liquefied gas.Also, since the trajectory tortuosity indicated in formula (1) is continuous, institute Can make to have the advantages that be easy without reinforcing material or a small amount of design for reinforcing this spherical tank of material.Also, in addition to above-mentioned advantage with Outside, it also includes structure elucidation to become easy, the design of high reliablity can be obtained;It is outer with that can be reduced compared with rectangular tank etc. Surface, so as to reduce the advantages that invading heat to the inside of tank 10;And it can make have the advantages that above design is easy.
In above-mentioned tank 10, pass through the track one indicated in the orthogonal cross-sectional shape of the upside tank body 13 of central axis C and formula (2) It causes.By compared with spherical tank 40 previous shown in chain-dotted line in Fig. 3 also it is found that due to formula (2) n value be greater than 2, tank 10 compared with spherical tank 40, forms the shape bloated obliquely upward from the center of tank 10.By means of this, can with from bridge 21 Visibility and liquefied gas carry vessel 1A position of centre of gravity it is related allow in the range of increase tankage size.
Also, the shape on 10 top of tank is close to cylindrical shape when the value of the n of formula (2) becomes excessive, as a result needing to flat The aggregate etc. that smooth position is reinforced.However, due to setting formula (2) n value less than 3, so can be realized without reinforce material or It is a small amount of to reinforce the structure that material is the pressure of tolerable liquefied gas.Also, since the trajectory tortuosity indicated in formula (2) is continuous, institute Can make to have the advantages that be easy without reinforcing material or a small amount of design for reinforcing this spherical tank of material.Also, in addition to above-mentioned advantage with Outside, it also includes structure elucidation to become easy, the design of high reliablity can be obtained;It is outer with that can be reduced compared with rectangular tank etc. Surface, so as to reduce the advantages that invading heat to the inside of tank 10;And it can make have the advantages that above design is easy.
In the implementation form, the radius r of downside tank body 12 and the respective opening portion of upside tank body 131, downside tank body 12 height r2And the high r of upside tank body 133It is equal length (that is, r1=r2=r3).Therefore, width and height with previous spherical tank almost It is identical.So the design about hull 20 can be carried out similarly with previous spherical tank.
In turn, in the implementation form, the value of the n of the m and formula (2) of formula (1) is 2.5, due to being identical value, downside tank body 12 with upside tank body 13 be same shape, and the manufacture of tank 10 becomes easy.
Fig. 4 is the figure for being shown as the tank 50 of variation of the tank 10.As shown in figure 4, the tank 50 as variation exists Have between upside tank body 13 and downside tank body 12 and prolongs what upside tank body 13 and downside tank body 12 were attached in vertical direction The cylinder 51 stretched.
As shown in figure 4, the upper end 12a of downside tank body 12 and the lower end 13a of upside tank body 13 are configured in different water In plane.That is, formula (1) and formula (2) respective x-axis also are located on different horizontal planes.It is described in more detail, then when upward with vertical It is positive and central axis C is set as y-axis, it will be by orthogonal with central axis C straight on the horizontal plane of the upper end 12a of downside tank body 12 When line is set as x-axis, pass through the range table of y≤0 in the orthogonal cross-sectional shape of the downside tank body 12 of central axis C and above-mentioned formula (1) The track shown is consistent.Also, central axis C is set as y-axis when being positive upwards with vertical, the lower end of upside tank body 13 will be passed through When the straight line orthogonal with central axis C is set as x-axis on the horizontal plane of 13a, pass through the vertical cross-section of the upside tank body 13 of central axis C Shape is consistent with the track of Range Representation of y >=0 in above-mentioned formula (2).
According to the structure of tank 50, the height of cylinder 51 is bigger, more can increase the liquefied gas carrying capacity of tank 50.But circle When the height of cylinder 51 becomes larger, existing to be moved upward from the center of gravity of the visibility of bridge 21 variation or tank 50 leads to liquefied gas The possibility of the bad stability of carry vessel 1A.Therefore, the height of cylinder 51 is set as to substantially ensure the view from bridge 21 In the range of recognizing property and position of centre of gravity as liquefied gas carry vessel 1A are allowed.
Above-mentioned implementation form is the example all put, and is not considered as restrictive.The scope of the present invention is not above-mentioned Illustrate but according to patent claims, with the connotation and range of patent claims book equalization in all changes More it is all contained in this intention.
Although for example, in above-mentioned implementation form downside tank body 12 and the respective opening portion of upside tank body 13 radius r1, downside The high r of tank body 122And the high r of upside tank body 133For equal length, but respectively or different length.Also, formula (1) r1And r2Ratio preferably meet 0.9≤r2/ r1≤ 1.1, by setting such ratio, the change of the trajectory tortuosity of formula (1) Change will not terrifically become larger, so the design further with spherical tank can be made to become possible downside tank body 12. Similarly, the r of formula (2)1And r3Ratio meet 0.9≤r3/ r1≤ 1.1 is optimal, pass through and set such ratio, formula (2) The variation of trajectory tortuosity will not terrifically become larger, so can make further have the advantages that spherical tank for upside tank body 13 Design becomes possible.
It also, the value of the n of the m and formula (2) of formula (1) is identical value in above-mentioned implementation form, but may be different value.Separately Outside, although as described above, the m of formula (1) be meet 2 < m < 3 constant arbitrary value, for example, so that downside tank body 12 With hull 20(such as internal backplane 28 or bottom edge deck board 29) discontiguous form considers the spacing distance to set formula (1) m.Also, in above-mentioned implementation form, although the n of formula (2) is the arbitrary value for meeting the constant of 2 < n < 3, for example, to ensure The form of the stability of liquefied gas carry vessel 1A considers the position of centre of gravity of 10 full load liquefied gas carry vessel 1A of tank to set formula (2) N.
Also, in above-mentioned embodiment, being also possible to only by the upside tank body 13 and downside tank body 12 of tank 10,50 The consistent structure in track indicated in the orthogonal cross-sectional shape of the central axis C of one side's tank body and formula (1) (wherein 2 < m < 3).At this point, For example, another party's tank body in upside tank body 13 and downside tank body 12 can also be identical as the shape of previous spherical tank.
Symbol description
1A liquefied gas carry vessel;
10,50 liquid gas storage tank peculiar to vessel;
12 downside tank bodies;
The upper end of tank body on the downside of 12a;
13 upside tank bodies;
The lower end of tank body on the upside of 13a;
51 cylinders;
r1The radius of the upper end of downside tank body;
r2The height of downside tank body;
r3The height of upside tank body.

Claims (7)

1. a kind of liquid gas storage tank peculiar to vessel, for as the liquid gas storage tank peculiar to vessel around vertical pressure vessel substantially symmetrical about its central axis, spy Sign is,
It include: the upside tank body with lower end being open downwards;With
The downside tank body with upper end being open upwards;
By the orthogonal cross-sectional shape of the central axis of side's tank body in the upside tank body and the downside tank body with by institute State the track that central axis is set as y-axis, will indicate in the following formula (1) when being set as x-axis with the straight line of the orthogonality of center shaft It is consistent: ︱ x/r1m+ ︱ y/r2m=1 ... (1),
Wherein, r1It is the upper end or the radius of the lower end of the party tank body, r2It is the height of the party tank body, m It is the constant of satisfaction 2 < m < 3.
2. liquid gas storage tank peculiar to vessel according to claim 1, which is characterized in that
By the orthogonal cross-sectional shape of the central axis of another party's tank body in the upside tank body and the downside tank body and incite somebody to action The rail that the central axis is set as y-axis, will indicate in the following formula (2) when being set as x-axis with the straight line of the orthogonality of center shaft Mark is consistent: ︱ x/r1n+ ︱ y/r3n=1 ... (2),
Wherein, r3It is the height of another party's tank body, n is the constant of satisfaction 2 < n < 3.
3. liquid gas storage tank peculiar to vessel according to claim 2, which is characterized in that
The r of formula (1) and formula (2)1、r2And r3Meet r1=r2=r3
4. liquid gas storage tank peculiar to vessel according to claim 3, which is characterized in that
The m of formula (1) and the n of formula (2) meet m=n.
5. liquid gas storage tank peculiar to vessel according to claim 1 or 2, which is characterized in that
The r of formula (1)1And r2Meet 0.9≤r2/ r1≤1.1。
6. liquid gas storage tank peculiar to vessel as claimed in any of claims 1 to 4, which is characterized in that
Between the upside tank body and the downside tank body include connect the upside tank body and the downside tank body in lead The cylinder that vertical direction extends.
7. a kind of liquefied gas carry vessel for having liquid gas storage tank peculiar to vessel described in any one of claim 1 to 6.
CN201580078317.XA 2015-04-08 2015-10-13 Liquid gas storage tank peculiar to vessel and the liquefied gas carry vessel for having the liquid gas storage tank peculiar to vessel Expired - Fee Related CN107428400B (en)

Applications Claiming Priority (3)

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JP2015079008A JP6461686B2 (en) 2015-04-08 2015-04-08 Marine liquefied gas tank and liquefied gas carrier equipped with the same
JP2015-079008 2015-04-08
PCT/JP2015/005184 WO2016162908A1 (en) 2015-04-08 2015-10-13 Tank for liquefied gas for vessels, and liquified gas carrying vessel provided with same

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CN107428400A CN107428400A (en) 2017-12-01
CN107428400B true CN107428400B (en) 2019-03-08

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KR (1) KR102010422B1 (en)
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WO (1) WO2016162908A1 (en)

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CN108025803B (en) * 2015-10-05 2019-10-08 川崎重工业株式会社 Liquid gas storage tank peculiar to vessel and the liquefied gas carry vessel for having the liquid gas storage tank peculiar to vessel
JP6721545B2 (en) * 2017-07-10 2020-07-15 三菱造船株式会社 Ship
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JP6901950B2 (en) * 2017-10-03 2021-07-14 川崎重工業株式会社 Marine tank cover and ships equipped with it
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JP2016199092A (en) 2016-12-01
WO2016162908A1 (en) 2016-10-13

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