CN208760845U - A kind of secondary screen-wall of A type tank liquefied gas carrier - Google Patents
A kind of secondary screen-wall of A type tank liquefied gas carrier Download PDFInfo
- Publication number
- CN208760845U CN208760845U CN201820962095.9U CN201820962095U CN208760845U CN 208760845 U CN208760845 U CN 208760845U CN 201820962095 U CN201820962095 U CN 201820962095U CN 208760845 U CN208760845 U CN 208760845U
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- China
- Prior art keywords
- heat
- insulating shield
- wall
- layer
- secondary screen
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Abstract
The utility model provides a kind of secondary screen-wall of A type tank liquefied gas carrier, A type tank liquefied gas carrier cargo fence system includes the IMO A type low temperature prism liquid gas storage tank being supported on hull and complete screen-wall, secondary screen-wall system and liquid gas storage tank be separated from each other not in contact with, space for maintenance of the region as time screen-wall between secondary screen-wall and flow container, the secondary screen-wall includes the prefabricated heat-insulating shield layer of upper layer and lower layer and one layer of complete screen-wall film, upper and lower heat-insulating shield layer is divided in advance is fabricated to muti-piece heat-insulating shield up and down, every block of heat-insulating shield is fixed in Ship Structure in center with stainless steel screw rod, fill low temperature sponge and foam respectively between adjacent heat-insulating shield up and down to absorb the displacement of heat-insulating shield, individually time screen-wall film is sticked on adjacent upper heat-insulating shield and is pre-formed a groove shapes, time screen-wall film is allowed to shrink and expand, this is practical new The secondary screen-wall of type meets complete seal according to " IGC " Specification Design, by its unique structure, system bearing power, the requirement of liquid goods evaporation rate and thermal insulation etc..
Description
Technical field
The utility model relates to the seals of low-temperature liquefaction natural gas transportation shipload tank, more particularly to a kind of A type tank
The secondary screen-wall of liquefied gas carrier.
Background technique
Country's shipbuilding industry just develops towards the line of production of high added value, high technology content, high construction difficulties at present, greatly
Type LNG cargo ship is also one of them.
LNG cargo ship key technology concentrates on flow container cabin region, according to " international bulk transport liquefied gases naval construction and setting
Standby rule " (referred to as " IGC ", hereinafter referred to as IGC specification) require, and A type tank requires complete screen-wall, and the design of secondary screen-wall needs
There is good close property, can temporarily store the liquefied natural gas for reaching -163 DEG C of leakage；Simultaneously need that there is good heat
Completely cut off efficiency, can prevent the temperature of Ship Structure from dropping to critical value, a variety of flow container designs are all a small number of designs in the world at present
Company monopolizing, and be typically designed using metal structure as the secondary screen-wall of A type tank, in order to break up monopoly, save the cost is needed in A
It makes a breakthrough on the secondary screen-wall form design of type tank liquefied gas carrier.
Utility model content
The main purpose of the utility model aiming at the deficiencies in the prior art, provide it is a kind of it is novel, production is simple, at
Sheet is lower, can shift to an earlier date prefabricated A type tank liquefied gas number indicating a ship's order of departure screen-wall form, while can satisfy insulation requirement, and improve
Working efficiency, save the cost save construction period.
To achieve the above object, the utility model uses following technical scheme: a kind of A type tank liquefied gas number indicating a ship's order of departure screen-wall, A type
Tank liquefied gas carrier cargo fence system includes the IMO A type low temperature prism liquid gas storage tank 17 being supported on hull and complete screen
Wall, secondary screen-wall system and liquid gas storage tank 17 are separated from each other not in contact with i.e. upper exhausted by the independent prefabricated heat-insulating shield layer of upper layer and lower layer
The secondary screen-wall film 1 of thermosphere 19, lower thermal insulating layer 20 and the adjacent upper heat-insulating shield 7 of connection is constituted, and the upper layer and lower layer heat-insulating shield layer is preparatory
Several blocks of heat-insulating shields of area equation are divided into, wherein the material of upper heat-insulating shield 7 is successively that thickness is at least 0.4mm from top to bottom
Secondary screen-wall film 1, thickness be at least 6.5mm glued board 2, thickness be at least the polyurethane foam 3 of 164.5mm, wood block filler 4,
Thickness is at least the glued board 5 of 4mm, and lower heat-insulating shield 8 is successively that thickness is at least the glued board 5 of 4mm, thickness at least from top to bottom
It is the polyurethane foam 6 of 167mm and thickness is at least the glued board 5 of 4mm；About every piece heat-insulating shield is by a stainless steel screw rod
9 run through and keep relative position, and stainless steel screw rod 9 is welded in Ship Structure 21, and lower heat-insulating shield 8 is with lower 12 He of insulation crab bolt
Lower heat-insulating shield gasket 13 is fixed, upper heat-insulating shield 7 by the insulation crab bolt 10 of the wood block filler 4 in polyurethane foam 3 and it is upper absolutely
Hot plate gasket 11 is fixed, and screw rod 9 is located at the center of heat-insulating shield, and the gap between the adjacent lower heat-insulating shield 8 in the front and back is
5mm, allowable error ± 1mm are equipped with eps foam 14 in gap, and the gap between the adjacent upper heat-insulating shield 7 in front and back is 20mm, permit
Perhaps error under ±2 mm is equipped with low temperature sponge 16 in gap, and secondary screen-wall film 1 is using two kinds of 15 adhesive seals of polyurethane adhesive adjacent
On upper heat-insulating shield 7, and the shape of a groove is formed, the position of time screened film 1 expanded with heat and contract with cold with heat-insulating shield can be absorbed in groove
It moves, secondary screen-wall film 1 freely measures at least 5.7mm groove.
Preferably, secondary screen-wall film 1 is from top to bottom made of trilaminate material, the glass fibre that the first layer material is 155 μm,
Second layer material is the aluminium foil of 40 μ m-thicks, and the glass fibre that third layer material is 155 μm, glass fibre and aluminium foil use polyurethane
Glue combines.
Preferably, there are space for maintenances 18 between liquid gas storage tank 17 and upper thermal insulating layer 19.
Preferably, 6 density of polyurethane foam should be greater than 40kg/m3, when foam 6 foams inside cannot have more than 10cm3
Hollowing.
The beneficial effects of the utility model are, the secondary screen-wall can be formed complete screen-wall layer and with Low Temperature Liquid goods tank
The inspection service clearance disconnected from each other that can be used as time screen-wall not in contact with, the space between secondary screen-wall layer and liquid goods tank, facilitates and is
System maintenance, the divided production of heat-insulating shield up and down is simple, and can shift to an earlier date prefabricated installation, greatly reduce installation cost and save
The fabrication cycle of liquefied gas carrier, the low temperature filled between the foam and upper heat-insulating shield filled between adjacent lower heat-insulating shield
The offset that sponge generates when heat-insulating shield can be absorbed because of the deformation of hull and ship's navigation；Secondary screen-wall film uses two kinds of poly- ammonia
Ester gum is pasted on adjacent upper heat-insulating shield, and the heat of heat-insulating shield can be absorbed in preformed groove under conditions of -163 DEG C
It shrinks, using the secondary screen-wall form of the utility model, temporarily can directly store low temperature liquid natural gas and not generate leakage and heat biography
It passs, greatly reduces the risk of A type tank storage liquefied natural gas.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model；
Fig. 2 is the schematic diagram of heat-insulating shield on the utility model, lower heat-insulating shield；
Fig. 3 is the cross-sectional view of heat-insulating shield on the utility model, lower heat-insulating shield；
Fig. 4 is the side view of heat-insulating shield on the utility model, lower heat-insulating shield.
In figure: 1,0.4mm screen-wall film；2, glued board；3, polyurethane foam；4, wood block filler；5, glued board；6, polyurethane foam
Foam；7, upper heat-insulating shield；8, lower heat-insulating shield；9, stainless steel screw rod；10, upper insulation crab bolt；11, upper heat-insulating shield gasket；12, lower exhausted
Hot plate nut；13, lower thermal insulating layer gasket；14, eps foam；15, polyurethane adhesive；16, low temperature sponge；17, liquid gas storage tank；18, it examines
Repair space；19, upper thermal insulating layer；20, lower thermal insulating layer；21, Ship Structure.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the company being also possible to inside two elements
It is logical, it can be directly connected, it can also be indirectly connected through an intermediary.For the ordinary skill in the art, may be used
To understand the concrete meaning of above-mentioned term as the case may be.
A kind of secondary screen-wall of A type tank liquefied gas carrier as shown in Figures 1 to 4, A type tank liquefied gas carrier cargo fence system packet
Containing the IMO A type low temperature prism liquid gas storage tank 17 being supported on hull and complete screen-wall, secondary screen-wall system and liquid gas storage tank
17 are separated from each other not in contact with by the independent prefabricated heat-insulating shield layer, that is, upper thermal insulating layer 19 of upper layer and lower layer, lower thermal insulating layer 20 and connection
The secondary screen-wall film 1 of adjacent upper heat-insulating shield 7 is constituted, the upper layer and lower layer heat-insulating shield layer be divided into advance several pieces of area equation absolutely
Hot plate, wherein the material of upper heat-insulating shield 7 is successively that thickness is at least secondary screen-wall film 1, the thickness of 0.4mm and is at least from top to bottom
Glued board 2, the thickness of 6.5mm is at least the glued board 5 that the polyurethane foam 3 of 164.5mm, wood block filler 4, thickness are at least 4mm,
Lower heat-insulating shield 8 is successively that thickness is at least glued board 5, the thickness of 4mm and is at least 6 and of polyurethane foam of 167mm from top to bottom
Thickness is at least the glued board 5 of 4mm；About every piece heat-insulating shield runs through and keeps relative position by a stainless steel screw rod 9, no
Rust steel screw rod 9 is welded in Ship Structure 21, and the lower insulation crab bolt 12 of lower heat-insulating shield 8 and lower heat-insulating shield gasket 13 are fixed, on
Heat-insulating shield 7 is fixed by the insulation crab bolt 10 of the wood block filler 4 in polyurethane foam 6 and upper heat-insulating shield gasket 11, and screw rod 9
In the center of heat-insulating shield, the gap between the adjacent lower heat-insulating shield 8 in the front and back is 5mm, allowable error ± 1mm, gap
In be equipped with eps foam 14, the gap between the adjacent upper heat-insulating shield 7 in front and back is 20mm, allowable error ± 2mm, is equipped in gap
Low temperature sponge 16, secondary screen-wall film 1 use two kinds of 15 adhesive seals of polyurethane adhesive on adjacent upper heat-insulating shield 7, and form one
The shape of groove, groove can be absorbed the displacement of time screened film 1 expanded with heat and contract with cold with heat-insulating shield, and secondary screen-wall film 1 is in groove
Freely measure at least 5.7mm.
Preferably, the secondary screen-wall of A type tank liquefied gas carrier is required to temporarily store by liquid according to " IGC " code requirement
The liquefied gas of cargo hold leakage, in order to meet the close property requirement of complete screen-wall, secondary screen-wall film 1 is by trilaminate material from top to bottom structure
At the glass fibre that the first layer material is 155 μm, the second layer material is the aluminium foil of 40 μ m-thicks, the glass that third layer material is 155 μm
Glass fiber, glass fibre and aluminium foil are combined using polyurethane glue.
Preferably, there are space for maintenances 18 between liquid gas storage tank 17 and upper thermal insulating layer 19.
Preferably, 6 density of polyurethane foam should be greater than 40kg/m3, when foam 6 foams inside cannot have more than 10cm3
Hollowing.
The beneficial effects of the utility model are, the secondary screen-wall can be formed complete screen-wall layer and with Low Temperature Liquid goods tank
The inspection service clearance disconnected from each other that can be used as time screen-wall not in contact with, the space between secondary screen-wall layer and liquid goods tank, facilitates and is
System maintenance, the divided production of heat-insulating shield up and down is simple, and can shift to an earlier date prefabricated installation, greatly reduce installation cost and save
The fabrication cycle of liquefied gas carrier, the low temperature filled between the foam and upper heat-insulating shield filled between adjacent lower heat-insulating shield
The offset that sponge generates when heat-insulating shield can be absorbed because of the deformation of hull and ship's navigation；Secondary screen-wall film uses two kinds of poly- ammonia
Ester gum is pasted on adjacent upper heat-insulating shield, and the heat of heat-insulating shield can be absorbed in preformed groove under conditions of -163 DEG C
It shrinks, using the secondary screen-wall form of the utility model, temporarily can directly store low temperature liquid natural gas and not generate leakage and heat biography
Pass, greatly reduce the risk of A type tank storage liquefied natural gas, by with the combination of materials of last time screen-wall, can effectively every
- 163 DEG C of low temperature absolutely makes the temperature of Ship Structure side not less than 0 DEG C.
The secondary screen-wall of the A type tank liquefied gas carrier of the utility model is supported in Ship Structure, in order to compensate for hull knot
The deformation that structure generates during ship's navigation, the secondary screen-wall film 1 for sealing adjacent upper 7 gap of heat-insulating shield are designed to have groove
Shape is analysed and is tested by Ship Structure deformation gauge point counting, and the clearance requirement time screen-wall film of 20mm is in freely measuring for groove
5.7mm in the gap of different Ship Structure positions there is different secondary screen-wall films freely to measure requirement.
In the description of this specification, the description meaning of reference term " one embodiment ", " example " or " some examples " etc.
Refer to that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of the utility model
In a embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment
Or example.Moreover, particular features, structures, materials, or characteristics described in any one or more embodiments or can be shown
It can be combined in any suitable manner in example.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (4)
1. a kind of secondary screen-wall of A type tank liquefied gas carrier, A type tank liquefied gas carrier cargo fence system includes to be supported on hull
IMO A type low temperature prism liquid gas storage tank and complete screen-wall, secondary screen-wall system and liquid gas storage tank be separated from each other not in contact with,
It is characterized in that, by the independent prefabricated heat-insulating shield layer, that is, upper thermal insulating layer of upper layer and lower layer, lower thermal insulating layer and the adjacent upper heat-insulating shield of connection
Secondary screen-wall film is constituted, and the upper layer and lower layer heat-insulating shield layer is divided into several blocks of heat-insulating shields of area equation in advance, wherein upper insulation
The material of plate is successively that thickness is at least secondary screen-wall film, the thickness of 0.4mm and is at least the glued board of 6.5mm, thickness from top to bottom
At least the polyurethane foam of 164.5mm, wood block filler, the thickness glued board that is at least 4mm, lower heat-insulating shield are successively from top to bottom
Thickness is at least the glued board of 4mm, thickness is at least the polyurethane foam of 167mm and thickness is at least the glued board of 4mm；Every piece
Upper and lower heat-insulating shield runs through and keeps relative position by a stainless steel screw rod, and stainless steel screw rod is welded in Ship Structure, under
Heat-insulating shield is fixed with lower insulation crab bolt and lower heat-insulating shield gasket, and upper heat-insulating shield is by the wood block filler in polyurethane foam with absolutely
Hot plate nut and upper heat-insulating shield gasket are fixed, and screw rod is located at the center of heat-insulating shield, the adjacent lower heat-insulating shield in the front and back it
Between gap be 5mm, allowable error ± 1mm, eps foam is equipped in gap, the gap between the adjacent upper heat-insulating shield in front and back is
20mm, allowable error ± 2mm are equipped with low temperature sponge in gap, and secondary screen-wall film is using two kinds of polyurethane adhesive adhesive seals adjacent
Upper heat-insulating shield on, and form the shape of a groove, the position of time screened film expanded with heat and contract with cold with heat-insulating shield can be absorbed in groove
It moves.
2. secondary screen-wall according to claim 1, which is characterized in that secondary screen-wall film is from top to bottom made of trilaminate material, the
The glass fibre that layer of material is 155 μm, the second layer material are the aluminium foil of 40 μ m-thicks, the glass fibers that third layer material is 155 μm
Dimension, glass fibre and aluminium foil are combined using polyurethane glue.
3. secondary screen-wall according to claim 1, which is characterized in that it is empty that there are maintenance between liquid gas storage tank and upper thermal insulating layer
Between.
4. secondary screen-wall according to claim 1, which is characterized in that polyurethane foam density should be greater than 40kg/m3, foam hair
10cm cannot be had more than inside when bubble3Hollowing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820962095.9U CN208760845U (en) | 2018-06-21 | 2018-06-21 | A kind of secondary screen-wall of A type tank liquefied gas carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820962095.9U CN208760845U (en) | 2018-06-21 | 2018-06-21 | A kind of secondary screen-wall of A type tank liquefied gas carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208760845U true CN208760845U (en) | 2019-04-19 |
Family
ID=66127126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820962095.9U Withdrawn - After Issue CN208760845U (en) | 2018-06-21 | 2018-06-21 | A kind of secondary screen-wall of A type tank liquefied gas carrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208760845U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112498582A (en) * | 2020-10-30 | 2021-03-16 | 沪东中华造船(集团)有限公司 | LNG ship and film type enclosure system thereof |
| CN114174712A (en) * | 2019-07-31 | 2022-03-11 | 气体运输技术公司 | Sealed and thermally insulated tank for floating structures |
-
2018
- 2018-06-21 CN CN201820962095.9U patent/CN208760845U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114174712A (en) * | 2019-07-31 | 2022-03-11 | 气体运输技术公司 | Sealed and thermally insulated tank for floating structures |
| CN114174712B (en) * | 2019-07-31 | 2023-10-24 | 气体运输技术公司 | Sealed and thermally insulated tank for floating structures |
| CN112498582A (en) * | 2020-10-30 | 2021-03-16 | 沪东中华造船(集团)有限公司 | LNG ship and film type enclosure system thereof |
| CN112498582B (en) * | 2020-10-30 | 2021-09-03 | 沪东中华造船(集团)有限公司 | LNG ship and film type enclosure system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190419 Effective date of abandoning: 20210512 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190419 Effective date of abandoning: 20210512 |