CN206871312U - Cargo tank - Google Patents

Cargo tank Download PDF

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Publication number
CN206871312U
CN206871312U CN201720278929.XU CN201720278929U CN206871312U CN 206871312 U CN206871312 U CN 206871312U CN 201720278929 U CN201720278929 U CN 201720278929U CN 206871312 U CN206871312 U CN 206871312U
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China
Prior art keywords
cargo tank
vertical
insulation layer
purlin
nacelle
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CN201720278929.XU
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Chinese (zh)
Inventor
刘东进
甘少炜
顾华
范洪军
金全洲
程康
徐小艳
李晓晨
曹蛟龙
尹红伟
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Wuhan Rules & Research Institutes Of China Classification Society
China International Marine Containers Group Co Ltd
Zhangjiagang CIMC Sanctum Cryogenic Equipment Co Ltd
CIMC Enric Investment Holdings Shenzhen Co Ltd
Original Assignee
Wuhan Rules & Research Institutes Of China Classification Society
China International Marine Containers Group Co Ltd
Zhangjiagang CIMC Sanctum Cryogenic Equipment Co Ltd
CIMC Enric Investment Holdings Shenzhen Co Ltd
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Application filed by Wuhan Rules & Research Institutes Of China Classification Society, China International Marine Containers Group Co Ltd, Zhangjiagang CIMC Sanctum Cryogenic Equipment Co Ltd, CIMC Enric Investment Holdings Shenzhen Co Ltd filed Critical Wuhan Rules & Research Institutes Of China Classification Society
Priority to CN201720278929.XU priority Critical patent/CN206871312U/en
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Abstract

The utility model provides a kind of cargo tank, and to store LNG media, the cargo tank includes:Nacelle and time shielding construction;The secondary shielding construction is arranged at the bottom of the nacelle, for the liquid medium released from the cargo tank internal leakage;The outer surface of the cargo tank is provided with heat-insulation layer.The secondary shielding construction of the utility model cargo tank is directly connected in nacelle, and secondary shielding construction is arranged within heat-insulation layer, it is arranged at relative to secondary shielding in the prior art outside heat-insulation layer, avoids damage of the leakage liquid to heat-insulation layer, and ensured cargo tank heat insulation effect.

Description

Cargo tank
Technical field
It the utility model is related to LNG storages and transport field, more particularly to a kind of Type B independent liquid cargo tank.
Background technology
Promulgated according to International Maritime Organization《International bulk liquid gas ship constructs and equipment Regulation》(IGC rules)'s Definition, LNG cargo tanks are broadly divided into independent liquid cargo tank(A, B, c-type)With film-type cargo tank.Film-type cabin is non-self support Cargo tank, the thin film that it is supported by the Ship Structure abutted by heat insulation layer forms.Film-type cabin and craft body one With building, by interior double hull, secondary film, main film and heat-insulated the formed cargo containment system of low temperature.Its manufacturing cycle is grown, and Complicated, construction difficulty is big, costly, later maintenance overhaul process complexity.Free-standing cargo tank is itself supported knot Structure, a part for Ship Structure not being formed, does not share Hull Strength yet, its structural strength depends primarily on design pressure etc. itself Design objective.Either film-type cabin system cargo tank, or free-standing cargo tank system cargo tank, the LNG media in cabin can all be sent out Raw leakage situation.At present, it is typically employed in outside the heat-insulation layer of bulkhead and time shielding is set, although such secondary screen of design Cover the leakage problem of solution, but the liquid coup injury insulation material leaked, cause the decline of cargo tank heat insulation effect.
Utility model content
In order to solve the above-mentioned technical problem, the utility model is to provide a kind of cargo tank, with solve in the prior art because The problems such as causing heat insulation effect to decline the damage of heat-insulation layer from the LNG media of cabin internal leakage.
For above-mentioned technical problem, the utility model proposes a kind of cargo tank, to store LNG media, the cargo tank Including:Nacelle and time shielding construction;The secondary shielding construction is arranged at the bottom of the nacelle, for releasing from the liquid goods The liquid medium of cabin internal leakage;The outer surface of the cargo tank is provided with heat-insulation layer.
In a preferred approach, described shielding uses partial closure's structure, and partial closure's structure includes:Catch tray and Conduit.Catch tray is arranged at the support forced position of the bottom of the nacelle;The catch tray and the outer surface of the nacelle are close Envelope connection;Conduit connects with the catch tray;The conduit can discharge the liquid medium water conservancy diversion collected in the catch tray Outside to the cargo tank.
In a preferred approach, the heat-insulation layer is polyurethane foam insulation layer.
In a preferred approach, the thickness of the polyurethane foam insulation layer is between 300mm ~ 500mm.
In a preferred approach, the nacelle includes sealing bulkhead and the multiple components being arranged in the sealing bulkhead;Institute Stating sealing bulkhead includes:Bottom wall, side wall and roof;The multiple component includes:Multiple crossbeams and vertical purlin;The girder space It is arranged on the surface of the bottom wall;The vertical purlin is vertically arranged along the sidewall surfaces, and the lower end of the vertical purlin with One end connection of the crossbeam, the upper end of the vertical purlin are connected with the roof.
In a preferred approach, the multiple component also includes:Multiple reinforcing plates;The reinforcing plate is along the top wall surface water It is flat to set, and the reinforcing plate is set corresponding to the crossbeam;The both ends of the reinforcing plate horizontal direction are corresponding with two respectively The top connection of the vertical purlin set;A crossbeam, two vertical purlins and the reinforcing plate structure being correspondingly arranged Into a whole coil structures.
In a preferred approach, the multiple component also includes:Multiple vertical bone, stiffener and floors;Between the multiple vertical bone Every being distributed on the surface of the bottom wall, the vertical bone is staggered with the crossbeam;The stiffener is along the sidewall surfaces It is vertically arranged, multiple stiffeners are distributed between two adjacent vertical purlins;The floor is arranged on the surface of the bottom wall, And corresponding to the bottom of the stiffener;The floor connects vertical bone adjacent thereto respectively, and corresponding described helps Qiang Cai.
In a preferred approach, the multiple component also includes:Multiple horizontal girders;Each horizontal girder is along the side wall ring around water Flat to set, the multiple second purlin is arranged at intervals in the height direction, and the horizontal girder is staggered with the vertical purlin.
In a preferred approach, the sealing bulkhead and the multiple component are austenitic stainless steel.
In a preferred approach, the cargo tank is polyhedral structure;The bottom wall and roof of the cargo tank are slab construction, The side wall is formed by connecting by multiple flat boards.
In a preferred approach, the roof is provided with feed tube and drain pipe, is respectively used to the feed liquor into the cargo tank Or to exterior liquid out of described cargo tank.
In a preferred approach, the catch tray corresponds to the crossbeam and set.
Compared with prior art, the utility model has the advantages that:The secondary shielding knot of the utility model cargo tank Structure is directly connected in nacelle, and secondary shielding construction is arranged within heat-insulation layer, and guarantor is arranged at relative to secondary shielding in the prior art Outside warm layer, damage of the leakage liquid to heat-insulation layer is avoided, and ensured cargo tank heat insulation effect.
Further, the utility model cargo tank arranges solve Intensity Design, to hold by the coordination of internal multiple components LNG liquid loadage amounts and saturated vapour pressure are carried, rather than existing cargo tank is carried by sheet metal thickness and circular configuration, is led to The similarity of adjustment sealed compartment wall and ship volume of compartment is crossed, to improve volume of compartment utilization rate.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment cargo tank.
Fig. 2 is the structural representation of the present embodiment cargo tank bottom wall.
Fig. 3 is the structural representation of catch tray in Fig. 2.
Description of reference numerals is as follows:
21st, bottom wall;22nd, side wall;23rd, roof;31st, crossbeam;32nd, vertical purlin;34th, bone is indulged;35th, stiffener;36th, floor; 37th, horizontal girder;41st, catch tray;411st, groove;42nd, conduit;421st, conduit outlet;5th, heat-insulation layer;6th, manhole structure;71st, feed liquor Pipe;72nd, drain pipe.
Embodiment
Embodying the exemplary embodiment of the utility model features and advantages will describe in detail in the following description.It should be understood that Be that the utility model can have various changes in different embodiments, it does not all depart from model of the present utility model Enclose, and explanation therein and diagram are treated as purposes of discussion in itself, and be not used to limit the utility model.
The utility model is described in further detail with reference to the accompanying drawings and examples.Knot is illustrated in order to clearer Structure position relationship, the cargo tank defined in the present embodiment have vertical and horizontal, see Fig. 1 and Fig. 2.
Refering to Fig. 1, the cargo tank of the present embodiment is Type B independent liquid cargo tank, and to store LNG media, cargo tank is square Body.
The cargo tank includes:Nacelle and time shielding construction.Nacelle includes:Seal bulkhead and be arranged at more in sealing bulkhead Individual component.There is closed built-in space in sealing bulkhead.In the present embodiment, it is austenite to seal bulkhead and multiple components Stainless steel, to meet the requirement of the black brittleness of cargo tank.
Sealing bulkhead includes bottom wall 21, side wall 22 and roof 23, and bottom wall 21 forms the bottom of cargo tank.Wherein, bottom wall 21 It is slab construction with roof 23, side wall 22 is formed by connecting by four flat boards.The sealing bulkhead of flat board group weldering can be according to hull shape Shape and arrangement space carry out different in nature design, make full use of ship volume of compartment.
In actual use, cargo tank can also be designed as its of non-square body with the limitation of the condition at scene according to demand His polyhedron, or other shapes, are not limited herein.
The multiple components being arranged in sealing bulkhead include:Multiple crossbeams 31, vertical purlin 32, reinforcing plate(Do not show in figure Go out), vertical bone 34, stiffener 35 and floor 36.The architectural feature of each component in the present embodiment is only shown, it is not represented in Fig. 1 The quantity of each component of the present embodiment.
Crossbeam 31 is horizontally arranged at interval on the surface of bottom wall 21 along nacelle.Vertical purlin 32 is set vertically along the surface of side wall 22 Put, and the lower end of vertical purlin 32 is connected with one end of the horizontal direction of crossbeam 31, the upper end of vertical purlin 32 and the interior table of roof 23 Face connects.
Reinforcing plate is laterally horizontally disposed with along nacelle in the inner surface of roof 23, and reinforcing plate is set corresponding to crossbeam 31.Strengthen The top for the vertical purlin 32 that the both ends in plate level direction are correspondingly arranged with two respectively is connected.A crossbeam 31 being correspondingly arranged, Two vertical purlins 32 and a reinforcing plate form a whole coil structures., should when the cargo tank of the present embodiment is applied on ship Whole coil structures are arranged in hull rib position, form effective support structure designs, effectively carry LNG weight and cargo tank in itself Weight.
Further, multiple vertical bones 34 are longitudinally spaced is distributed on the surface of bottom wall 21, and vertical bone 34 interlocks with crossbeam 31 Set.Stiffener 35 is vertically arranged along the surface of side wall 22, and multiple stiffeners 35 are distributed between two adjacent vertical purlins 32.Rib Plate 36 is arranged on the surface of bottom wall 21, and corresponding to the bottom of stiffener 35.Floor 36 connects vertical bone adjacent thereto respectively 34, and corresponding stiffener 35.Vertical bone 34 and stiffener 35 form overall structure, while and sealed compartment by floor 36 Wall carries out full weld connection, improves the bending resistance of sealing bulkhead, possesses carrying low temperature LNG saturated vapour pressure abilities.
Further, component also includes:Multiple horizontal girders 37.Each horizontal girder 37 is surround along side wall 22 to be horizontally disposed with, more Individual horizontal girder 37 is arranged at intervals in the height direction, and horizontal girder 37 is staggered with vertical purlin 32.
In actual use, the shape of cargo tank internals can be also designed according to volume of compartment shape, not be limited herein It is fixed.
The multiple components set in the present embodiment cargo tank, effectively prevention cryogenic media LNG is violent rocks, and reduces low Impacts of the warm medium LNG to sealing bulkhead, reduce inter alia the bottom stress of sealing bulkhead.Meanwhile the cargo tank passes through in it Portion's component forms integrated design, can effectively bear LNG weight and saturated vapour pressure, so as to effectively reduce LNG storage dresses The weight put.That is, the sealing bulkhead of the present embodiment cargo tank only seals, intensity load is not involved in, therefore, can To reduce sheet metal thickness, cargo tank deadweight is reduced, it is fuel efficiency to improve ship useful load.
With reference to shown in Fig. 2 and Fig. 3, secondary shielding construction is arranged at the outer surface of bottom wall 21, is let out for releasing out of cargo tank The liquid medium of leakage.Secondary shielding in the present embodiment uses partial closure's structure, and partial closure's structure includes:Multiple catch trays 41 With conduit 42.
Catch tray 41 is arranged at the support forced position of bottom wall 21, and catch tray 41 is tightly connected with the outer surface of bottom wall 21.Phase Ying Di, the support forced position of the present embodiment cargo tank are located at opening position corresponding to crossbeam 31, therefore 41 corresponding crossbeam of catch tray 31 are set.Corresponding to each crossbeam 31 on the outer surface of bottom wall 21 and five catch trays 41 of laterally spaced setting, horizontal each two Connected between catch tray 41 by conduit 42, meanwhile, connected between the adjacent catch tray 41 of longitudinal each two also by conduit 42, To realize the mutual connection of all catch trays 41;Meanwhile be in communication with the outside in one jiao of conduit 42 of bottom wall 21, it will collect The LNG gases and liquid that disk 41 is collected are unified in the concentration of conduit outlet 421 and diffused to cargo tank.Further, conduit 42 The position being connected with catch tray 41 is located at the middle part of catch tray 41, preferentially to discharge the gas in catch tray 41, prevents catch tray It is pressurized in 41.
Further, the material of catch tray 41 is identical with bottom wall 21.Catch tray 41 is square box-like, and it has upper shed, The upper shed edge of catch tray 41 is fixedly connected with the outer surface of bottom wall 21.The center of the bottom surface of catch tray 41 has a groove 411.The bottom surface of the groove 411 is until fit in the outer surface of bottom wall 21, to install support base(Not shown in figure)The support Seat is not conduction cooling material, to completely cut off heat transfer.The cargo tank of the present embodiment is installed on hull by the support base of setting.
It should be noted that Support Position is located at hull rib position corresponding to the crossbeam 31 of the cargo tank of the present embodiment, it is more Fulcrum is advantageous to cargo tank uniform load and is distributed on hull, while reduces the bending stress between cargo tank fulcrum.Namely Say, the position of the fulcrum is the support forced position of nacelle.
In actual use, the position of catch tray 41 can be adjusted according to cargo tank actual support forced position and is set and is received The quantity of catch basin 41, not limit herein.
The outer surface of the present embodiment cargo tank is provided with heat-insulation layer 5, and the heat-insulation layer 5 is the polyurethane foam insulation layer of spraying, That is, the direct spraying polyurethane foam on sealing bulkhead, makes it completely be covered in the outer surface of cargo tank.Especially It is that it is straight that polyurethane foam insulation layer 5 effectively can also wrap up secondary shielding construction the liquid in the inner, preventing bottom wall 21 from leaking Damage insulation material is connect, and causes the decline of cargo tank heat insulation effect.The spray ployurethane foam thermo-insulating used in the present embodiment Layer service life length, and it can be combined with sealing bulkhead formed with effect, is prevented moisture from penetrating into the freezing and expansion of heat-insulation layer 5, is avoided Cause insulation failure, reduce BOG gases caused by low temperature LNG to greatest extent.
More preferably, the thickness of polyurethane foam insulation layer is between 300mm ~ 500mm, to be covered with sealing bulkhead outer surface, Reach the effect that is hedged off from the outer world;Meanwhile with reference to the physical dimension of the present embodiment cargo tank, it is ensured that optimal economic heat-insulation layer 5 Thickness.
In other embodiments, polyurethane foam insulation layer can also be replaced by other similar heat-insulation layers.
Manhole structure 6, feed tube 71 and drain pipe 72 are additionally provided with the roof 23 of the present embodiment cargo tank, it is also used Common stainless steel material, such as austenitic stainless steel, ensure the adaptability under low temperature environment, meet low-temperature storage requirement.
The protrusion of manhole structure 6 is arranged on roof 23.Feed tube 71 and the concentrated setting of drain pipe 72 simultaneously draw from manhole structure 6 Going out, feed tube 71 and drain pipe 72 are respectively used to the feed liquor into cargo tank, and to exterior liquid out of cargo tank.The present embodiment Manhole structure 6, and feed tube 71 and drain pipe 72 it is compact-sized, be easy to manufacture and later maintenance provide it is convenient.
In addition, the present embodiment cargo tank is additionally provided with metering device, self-monitoring can be realized.
The present embodiment cargo tank is Type B independent liquid cargo tank, and it is applied to liquefied natural gas transport by sea and storage vessels LNG Power source.Specifically, the cargo tank is used to store LNG, and it can be arranged in LNG cargo ships or LNG fuel ships.Meanwhile The utility model cargo tank can not also depend on ship and be used alone, and be used with expanded application in land.
The secondary shielding construction of the utility model cargo tank is directly connected in nacelle, and secondary shielding construction be arranged at heat-insulation layer it It is interior, it is arranged at relative to secondary shielding in the prior art outside heat-insulation layer, avoids damage of the leakage liquid to heat-insulation layer, and ensure Cargo tank heat insulation effect.
Further, the utility model cargo tank arranges solve Intensity Design, to hold by the coordination of internal multiple components LNG liquid loadage amounts and saturated vapour pressure are carried, rather than existing cargo tank is carried by sheet metal thickness and circular configuration, is led to The similarity of adjustment sealed compartment wall and ship volume of compartment is crossed, to improve volume of compartment utilization rate.
Although describing the utility model with reference to above exemplary embodiment, it is to be understood that, term used is to say Bright and exemplary and nonrestrictive term.Because the utility model can be embodied without departing from practicality in a variety of forms New is spiritual or substantive, it should therefore be appreciated that above-mentioned embodiment is not limited to any foregoing details, and should be in right of enclosing It is required that widely explained in the spirit and scope limited, thus whole changes for falling into claim or its equivalent scope and Remodeling all should be appended claims and be covered.

Claims (12)

  1. A kind of 1. cargo tank, to store LNG media, it is characterised in that the cargo tank includes:Nacelle and time shielding construction;
    The secondary shielding construction is arranged at the bottom of the nacelle, for the liquid medium released from the cargo tank internal leakage; The outer surface of the cargo tank is provided with heat-insulation layer, and the heat-insulation layer wraps up the secondary shielding construction in the inner.
  2. 2. cargo tank as claimed in claim 1, it is characterised in that described shielding uses partial closure's structure, the part Enclosed construction includes:
    Catch tray, it is arranged at the support forced position of the bottom of the nacelle;The catch tray and the outer surface of the nacelle are close Envelope connection;
    Conduit, connected with the catch tray;The liquid medium water conservancy diversion collected in the catch tray can be expelled to by the conduit Outside the cargo tank.
  3. 3. cargo tank as claimed in claim 1, it is characterised in that the heat-insulation layer is polyurethane foam insulation layer.
  4. 4. cargo tank as claimed in claim 3, it is characterised in that the thickness of the polyurethane foam insulation layer 300mm~ Between 500mm.
  5. 5. cargo tank as claimed in claim 2, it is characterised in that the nacelle includes sealing bulkhead and is arranged at the sealing Multiple components in bulkhead;
    The sealing bulkhead includes:Bottom wall, side wall and roof;
    The multiple component includes:Multiple crossbeams and vertical purlin;The girder space is arranged on the surface of the bottom wall;It is described Vertical purlin is vertically arranged along the sidewall surfaces, and the lower end of the vertical purlin is connected with one end of the crossbeam, described vertical The upper end of purlin is connected with the roof.
  6. 6. cargo tank as claimed in claim 5, it is characterised in that the multiple component also includes:Multiple reinforcing plates;It is described to add Strong plate is horizontally disposed with along the top wall surface, and the reinforcing plate is set corresponding to the crossbeam;
    The top for the vertical purlin that the both ends of the reinforcing plate horizontal direction are correspondingly arranged with two respectively is connected;One be correspondingly arranged The individual crossbeam, two vertical purlins and a reinforcing plate form a whole coil structures.
  7. 7. cargo tank as claimed in claim 5, it is characterised in that the multiple component also includes:Multiple vertical bones, stiffener and Floor;
    The multiple vertical bone is spaced apart on the surface of the bottom wall, and the vertical bone is staggered with the crossbeam;
    The stiffener is vertically arranged along the sidewall surfaces, and multiple stiffeners are distributed between two adjacent vertical purlins;
    The floor is arranged on the surface of the bottom wall, and corresponding to the bottom of the stiffener;The floor connects respectively Vertical bone adjacent thereto, and the corresponding stiffener.
  8. 8. cargo tank as claimed in claim 5, it is characterised in that the multiple component also includes:Multiple horizontal girders;Each water Flat purlin is along the side wall ring around being horizontally disposed with, and the multiple second purlin is arranged at intervals in the height direction, the horizontal girder and institute Vertical purlin is stated to be staggered.
  9. 9. cargo tank as claimed in claim 5, it is characterised in that the bulkhead and the multiple component of sealing is austenite Stainless steel.
  10. 10. cargo tank as claimed in claim 5, it is characterised in that the cargo tank is polyhedral structure;The cargo tank Bottom wall and roof are slab construction, and the side wall is formed by connecting by multiple flat boards.
  11. 11. cargo tank as claimed in claim 5, it is characterised in that the roof is provided with feed tube and drain pipe, uses respectively In the feed liquor into the cargo tank or out of described cargo tank to exterior liquid.
  12. 12. cargo tank as claimed in claim 5, it is characterised in that the catch tray corresponds to the crossbeam and set.
CN201720278929.XU 2017-03-21 2017-03-21 Cargo tank Active CN206871312U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720278929.XU CN206871312U (en) 2017-03-21 2017-03-21 Cargo tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720278929.XU CN206871312U (en) 2017-03-21 2017-03-21 Cargo tank

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CN206871312U true CN206871312U (en) 2018-01-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108622319A (en) * 2017-03-21 2018-10-09 张家港中集圣达因低温装备有限公司 Cargo tank

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108622319A (en) * 2017-03-21 2018-10-09 张家港中集圣达因低温装备有限公司 Cargo tank

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