CN207631428U - A kind of structure improving liquefied gas tanker fatigue life - Google Patents
A kind of structure improving liquefied gas tanker fatigue life Download PDFInfo
- Publication number
- CN207631428U CN207631428U CN201721696516.XU CN201721696516U CN207631428U CN 207631428 U CN207631428 U CN 207631428U CN 201721696516 U CN201721696516 U CN 201721696516U CN 207631428 U CN207631428 U CN 207631428U
- Authority
- CN
- China
- Prior art keywords
- side tank
- inclined plate
- deep bracket
- bottom side
- liquefied gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a kind of structure improving liquefied gas tanker fatigue life, it is fixed with deep bracket on the inside of the bottom side tank inclined plate of ship and the intersection of inner bottom plating, it is 300 600mm that the deep bracket, which is covered in the length on bottom side tank inclined plate and inner bottom plating, and thickness is 15 30mm；The outer surface of the deep bracket is cambered surface, and cambered surface radius is 1500 3000mm, and the deep bracket is covered in bottom side tank inclined plate and inner bottom plating toe-end height is 15 20mm.The utility model improves the safety of liquefied gas carrier hull structural strength, solve the problems, such as that bottom side tank inclined plate easy tos produce fatigue crack with interior bottom intersection, significantly reduce the probability that the water in ballast tank enters cargo hold by crackle, reducing the Low Temperature Liquid goods of independent flow container will drastically evaporate, and gather the risk exploded for a long time.
Description
Technical field
The utility model is related to shipbuilding fields, and in particular to a kind of knot improving liquefied gas tanker fatigue life
Structure.
Background technology
Existing ultra-large type liquefied gas carrier is all made of prismatic A types independent tank, and structural configuration is dissipated with conventional
Freighter is similar, is single topside, double bottom structure, is equipped with bottom side tank, top side tank.
International Maritime Organization's publication《International Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk》(IGC rules) is repaiied
Positive case comes into force on January 1st, 2016.Be designed with significant impact of the new rule to liquefied gas ship, existing ultra-large type liquid gas
Cargo ship cannot meet new rule, and new rule could be met by needing to make larger modification.
Ultra-large type liquefied gas carrier since overall length is more than 200 meters, cargo density be less than density of sea water, hoggingmoment compared with
Greatly, hull is relatively low in bottom side tank inclined plate and interior bottom intersection fatigue life, easy tos produce fatigue crack.If the water in ballast tank
Enter cargo hold by crackle, the Low Temperature Liquid goods of independent flow container will drastically evaporate, and gather the risk that there will be explosion for a long time.
To eliminate safe hidden trouble, conventional fan-shaped insert plate strengthened scheme has been attempted, the program is more ripe on bulk freighter,
On plate floor in bottom side tank, one piece of insertion is using bottom side tank inclined plate and interior bottom intersection as the center of circle, and radius 150mm, angle is about
For 135 degree of fan-shaped slab.It calculates and finds, the program can also solve Fatigue Life Problems herein, but liquid gas transports
Boat-carrying transports LPG, reachable -55 DEG C of temperature.According to code requirement, A type independent liquid cargo tanks needs set up time shielding, and general main hull is made
For secondary shielding, according to code requirement, the main hull adjacent with A type independent liquid cargo tanks needs to select low-temperature steel.Due to low-temperature steel pair
Welding process requirement is higher, and constructs in bottom side tank, and the working environment of workers is severe.In addition, embedded plate thickness is if it exceeds 25mm,
It according to code requirement, needs to do at -60 DEG C and needs to do Charpy V test, shipyard passes through well construction, general inadequate
It can meet the requirements；Embedded plate thickness if it exceeds 30mm,
Charpy V test need to be done at -70 DEG C, be extremely difficult to require for general shipyard；Embedded plate thickness is such as
Fruit is more than 35mm, need to do Charpy V test at -75 DEG C, even domestic top shipyard, will also pay huge exert
Power could be met the requirements reluctantly.Synthesis sees that when selecting fan-shaped insert plate strengthened scheme, shipyard cost is higher.
Utility model content
Existing technological means is that fan-shaped insert plate is reinforced, and after larger-sized vessel, program shipyard cost is higher, for drop
This synergy proposes a kind of new strengthened scheme, can effectively improve node fatigue life herein and reduce difficulty of construction, change
Kind construction environment, saves shipyard cost.
Concrete scheme is as follows：
A kind of structure improving liquefied gas tanker fatigue life, in the bottom side tank inclined plate of ship and the intersection of inner bottom plating
Inside is fixed with deep bracket, and it is 300-600mm that the deep bracket, which is covered in the length on bottom side tank inclined plate and inner bottom plating, thick
Degree is 15-30mm；
The outer surface of the deep bracket be cambered surface, cambered surface radius 1500-3000mm,
The deep bracket is covered in bottom side tank inclined plate and inner bottom plating toe-end height is 15-20mm.
Further, it is 450mm that the deep bracket, which is covered in the length on bottom side tank inclined plate and inner bottom plating,.
Further, the thickness of the deep bracket is 24mm.
Further, the cambered surface radius of the deep bracket is 2000mm.
Further, the deep bracket is covered in bottom side tank inclined plate and inner bottom plating toe-end height is 15mm.
Further, it is additionally provided with bottom longitudinal below the corner of the bottom side tank inclined plate and the inner bottom plating.
Further, the deep bracket material is low-temperature steel.
The utility model improves the safety of liquefied gas carrier hull structural strength, solve bottom side tank inclined plate with
The problem of interior bottom intersection easy tos produce fatigue crack significantly reduces the probability that the water in ballast tank enters cargo hold by crackle,
Reducing the Low Temperature Liquid goods of independent flow container will drastically evaporate, and gather the risk exploded for a long time.
Description of the drawings
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this practicality is new
Some embodiments of type for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the hull and independent liquid cargo tank drawing in side sectional elevation using the utility model；
Schematic diagram Fig. 2 shows deep bracket in the intersection of bottom side tank inclined plate and inner bottom plating；
Fig. 3 is the partial enlarged view of a-quadrant deep bracket toe-end in Fig. 2.
Reference sign：1, ship outer casing；2, inner bottom plating；3, bottom side tank inclined plate；4, bottom longitudinal；5, deep bracket；
6, independent tank.
Specific implementation mode
In the following description, a large amount of concrete details are given more thoroughly to manage in order to provide to the utility model
Solution.It is, however, obvious to a person skilled in the art that the utility model may not need it is one or more of these thin
It saves and is carried out.In other examples, in order to avoid obscuring with the utility model, for more well known in the art
Technical characteristic is not described.
In order to thoroughly understand the utility model, detailed step and detailed structure will be proposed in following description,
To illustrate the technical solution of the utility model.The preferred embodiment of the utility model is described in detail as follows, however in addition to these
Detailed description is outer, and the utility model can also have other embodiment.
The utility model provides a kind of structure improving liquefied gas tanker fatigue life, in the bottom side tank inclined plate 3 of ship
And it is fixed with deep bracket 5 on the inside of the intersection of inner bottom plating 2, deep bracket 5 is covered on bottom side tank inclined plate 3 and inner bottom plating 2
Length be 300-600mm, thickness (i.e. the size of Z-direction in Fig. 2) be 15-30mm；
The outer surface of deep bracket 5 be cambered surface, cambered surface radius 1500-3000mm,
Deep bracket 5 is covered in bottom side tank inclined plate 3 and 2 toe-end height of inner bottom plating is 15-20mm.
In one optional embodiment of the utility model, deep bracket 5 is covered on bottom side tank inclined plate 3 and inner bottom plating 2
Length is 450mm；The thickness of deep bracket 5 is 24mm；The cambered surface radius of deep bracket 5 is 2000mm；Deep bracket 5 is covered in
Bottom side tank inclined plate 3 and 2 toe-end height of inner bottom plating are 15mm.We are shown experimentally that, by 5 each significant dimensions of deep bracket
Using each data defined in the present embodiment, best consolidation effect can be realized, while material cost is also had
Effect control.
In one optional embodiment of the utility model, also set up below the corner of bottom side tank inclined plate 3 and inner bottom plating 2
There is bottom longitudinal 4.
In one optional embodiment of the utility model, the material of deep bracket 5 is low-temperature steel.
The utility model is a kind of novel liquefied gas carrier joint form, after the design scheme, the regional structure
Size is met classification society approval, can be delivered production, put into effect by conventional direct strength calculation.
The preferred embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as with the common side in this field
Formula is practiced；Any technical person familiar with the field all may be used in the case where not departing from technical solutions of the utility model ambit
Many possible changes and modifications are made to technical solutions of the utility model using the methods and technical content of the disclosure above, or are repaiied
It is changed to the equivalent embodiment of equivalent variations, this has no effect on the substantive content of the utility model.Therefore, every without departing from this practicality
The content of new technique scheme, any simple modification made to the above embodiment of foundation the technical essence of the utility model, etc.
With variation and modification, still fall within technical solutions of the utility model protection in the range of.
Claims (7)
1. a kind of structure improving liquefied gas tanker fatigue life, which is characterized in that the bottom side tank inclined plate in ship and interior bottom
It is fixed with deep bracket on the inside of the intersection of plate, the length that the deep bracket is covered on bottom side tank inclined plate and inner bottom plating is
300-600mm, thickness 15-30mm；
The outer surface of the deep bracket be cambered surface, cambered surface radius 1500-3000mm,
The deep bracket is covered in bottom side tank inclined plate and inner bottom plating toe-end height is 15-20mm.
2. improving the structure of liquefied gas tanker fatigue life as described in claim 1, which is characterized in that the deep bracket covers
The length covered on bottom side tank inclined plate and inner bottom plating is 450mm.
3. improving the structure of liquefied gas tanker fatigue life as described in claim 1, which is characterized in that the deep bracket
Thickness is 24mm.
4. improving the structure of liquefied gas tanker fatigue life as described in claim 1, which is characterized in that the deep bracket
Cambered surface radius is 2000mm.
5. improving the structure of liquefied gas tanker fatigue life as described in claim 1, which is characterized in that the deep bracket covers
It is 15mm to cover in bottom side tank inclined plate and inner bottom plating toe-end height.
6. improving the structure of liquefied gas tanker fatigue life as described in claim 1, which is characterized in that oblique in the bottom side tank
It is additionally provided with bottom longitudinal below the corner of plate and the inner bottom plating.
7. improving the structure of liquefied gas tanker fatigue life as described in claim 1, which is characterized in that the deep bracket
Material is low-temperature steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696516.XU CN207631428U (en) | 2017-12-07 | 2017-12-07 | A kind of structure improving liquefied gas tanker fatigue life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696516.XU CN207631428U (en) | 2017-12-07 | 2017-12-07 | A kind of structure improving liquefied gas tanker fatigue life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207631428U true CN207631428U (en) | 2018-07-20 |
Family
ID=62862178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721696516.XU Active CN207631428U (en) | 2017-12-07 | 2017-12-07 | A kind of structure improving liquefied gas tanker fatigue life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207631428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109263790A (en) * | 2018-11-06 | 2019-01-25 | 南通中远海运川崎船舶工程有限公司 | Improve the structure and technique of cargo hold turn of the bilge yield strength and fatigue strength |
-
2017
- 2017-12-07 CN CN201721696516.XU patent/CN207631428U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109263790A (en) * | 2018-11-06 | 2019-01-25 | 南通中远海运川崎船舶工程有限公司 | Improve the structure and technique of cargo hold turn of the bilge yield strength and fatigue strength |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Mandal | Ship construction and welding | |
| JP6381872B2 (en) | Long ocean floating facility | |
| JP5715699B2 (en) | LNG ship | |
| JP2015013494A5 (en) | ||
| CN106741655B (en) | The support system and cargo tank of liquefied gas carrier IMOA type standard cargo tanks | |
| CN105416520B (en) | A kind of beach oil storage tank | |
| CN207631428U (en) | A kind of structure improving liquefied gas tanker fatigue life | |
| NO117280B (en) | ||
| CN202030721U (en) | Offshore oil gas floating air liquefying apparatus applied in water area of South China Sea | |
| CN202138515U (en) | Semi-submerged ship formed by configuring transport ship | |
| CN207466901U (en) | A kind of only floating structure of the LNG fuel compartments of roll-on/roll-off vessel for vehicle | |
| JP6742549B1 (en) | Ship loading planning method, loading planning system, and ship | |
| CN201914402U (en) | Oil tanker without seawater ballast | |
| CN109415108A (en) | Ship with multiple fluid conveying storage tanks | |
| CN207466898U (en) | A kind of node apparatus for improving liquefied gas carrier gas chamber opening intensity | |
| CN209037776U (en) | Wear-and corrosion-resistant deck | |
| CN107776827A (en) | A kind of load-carring transport | |
| RU2335426C1 (en) | Vessel for condensed gas transportation | |
| CN104627320B (en) | A kind of midship cross section structure of large-scale ore carrier | |
| CN206871312U (en) | Cargo tank | |
| Liu et al. | Research status and prospect of LNG inland waterway transportation safety in China | |
| CN215205247U (en) | Floating structure with watertight structure for liquefied gas fuel tank | |
| CN218559083U (en) | Ship with cabin-dividing type watertight isolation cabin | |
| TWM558219U (en) | Diphase stainless steel chemical vessel ballast cabin bulkhead | |
| KR20210012836A (en) | Offshore structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |