CN220662772U - Middle longitudinal structure of carbon dioxide liquefied gas carrier - Google Patents
Middle longitudinal structure of carbon dioxide liquefied gas carrier Download PDFInfo
- Publication number
- CN220662772U CN220662772U CN202322269695.0U CN202322269695U CN220662772U CN 220662772 U CN220662772 U CN 220662772U CN 202322269695 U CN202322269695 U CN 202322269695U CN 220662772 U CN220662772 U CN 220662772U
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- deck
- carbon dioxide
- liquefied gas
- gas carrier
- side plates
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 18
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a middle longitudinal structure of a carbon dioxide liquefied gas carrier, which is arranged in a cargo tank with two liquid cargo tanks, wherein a deck strong beam is fixedly arranged on a deck at the top of the cargo tank, and a strut is arranged in the middle of the carrier below the deck strong beam; the deck girder at the top of the cargo hold is fixedly connected with the deck girder and the deck girder at the same time at the top of the pillar; the bottom of the cargo hold is fixedly provided with a bottom pier, and the bottom of the support column is fixedly connected with the bottom pier. The structure designed by the utility model has relatively light weight, and improves the economy of the ship better.
Description
Technical Field
The utility model relates to the technical field of ships, in particular to a middle-longitudinal structure of a carbon dioxide liquefied gas carrier.
Background
A cargo tank is generally placed in a cargo tank of a conventional liquefied gas carrier, and the cargo tank mainly adopts a cylinder type, a double ear type or a triplet type. However, the liquefied carbon dioxide gas has a relatively high density and is limited by the maximum plate thickness of the international bulk transportation liquefied gas vessel structure and equipment regulation (IGC regulation), and compared with the conventional liquefied gas vessel, the diameter and shape of the liquid tank are limited, and a pair of cylindrical liquid cargo tanks are required to be symmetrically arranged in the cargo hold in order to achieve the same hold and cargo carrying capacity. Because the liquid tank tanks are arranged on the port and starboard sides, the ship width is increased greatly compared with that of the traditional liquefied gas ship, the span of the deck strong beam can reach more than 30 meters, and in order to reduce the span of the deck strong beam and the bottom rib plates, the economic index performance of the ship is improved, and the span is reduced by arranging a support in the ship.
The traditional design considers that a non-watertight longitudinal bulkhead is added at the middle longitudinal part to reduce the span of the strong cross beam and the bottom rib plate. The main disadvantages of this method are:
(1) The arrangement of the non-watertight longitudinal bulkhead needs to consider the strengthening materials, the strengthening frames and the vertical trusses on the longitudinal bulkhead, so that the distance between the liquid cargo tank on one side and the non-watertight longitudinal bulkhead component is smaller, the requirement of an inspection channel is not met, and the arrangement of the liquid cargo tank space is unfavorable.
(2) The nonwatertight longitudinal bulkhead is provided with a plurality of lightening holes, and the construction is complicated.
(3) The non-watertight longitudinal bulkhead structure is heavy in design weight, so that the cost of a shipyard can be increased, and the economic index of a ship can be reduced.
Disclosure of Invention
The technical problem to be solved by the utility model is to overcome the defects in the prior art and provide a middle-longitudinal structure of a carbon dioxide liquefied gas carrier.
The utility model solves the technical problems by the following technical scheme:
the middle longitudinal structure of the carbon dioxide liquefied gas carrier is arranged in a cargo tank with two liquid cargo tanks, a deck strong beam is fixedly arranged on a deck at the top of the cargo tank, and a strut is arranged in the middle of the carrier below the deck strong beam; the deck girder at the top of the cargo hold is fixedly connected with the deck girder and the deck girder at the same time at the top of the pillar; the bottom of the cargo hold is fixedly provided with a bottom pier, and the bottom of the support column is fixedly connected with the bottom pier.
The bottom piers are longitudinally and continuously distributed in the cargo hold along the midship line.
The top deck of the cargo hold is provided with a plurality of deck strong beams, and a strut is arranged below each deck strong beam.
The deck stringers and deck strength beams are all disposed below the top deck of the cargo hold.
The deck stringers extend longitudinally along the vessel, the deck stringers being fixedly secured to the deck girder.
The bottom of the cargo hold is a bottom plate in the ship body; the bottom pier comprises a top plate and two side plates; the bottoms of the two side plates are fixedly connected with the bottom plate in the ship body, and the tops of the two side plates are fixedly connected with the top plate; the top plate is transversely distributed; the pillar is fixedly connected with the top plate.
The top plate, the two side plates and the inner bottom plate of the ship body enclose an isosceles trapezoid; the two side plates are symmetrically arranged on two sides of the center line of the ship.
The distance between the tops of the two side plates is smaller than the distance between the bottoms of the two side plates.
The bottom pier is internally provided with a reinforcing part at a position corresponding to the position connected with the support column.
The support column and the bottom pier are both positioned between the two liquid cargo tanks.
The utility model has the beneficial effects that: the utility model arranges the support column in the ship of each strong frame rib position of the cargo hold and arranges the bottom pier penetrating the whole cargo hold on the double-layer bottom of the cargo hold, thereby reducing the span of the deck strong beam and the bottom rib plate. The support column is arranged in the ship, so that the port space and the starboard space are uniform and symmetrical, the space between two liquid cargo tanks in the liquid cargo tank is more abundant, and the requirement of an inspection channel is met. The upper ends of the struts are connected with the deck stringers, and the lower ends of the struts are connected with the longitudinal bottom piers, so that the stress transmission of the upper ends and the lower ends of the struts is easy. The struts arranged in the ship can be I-shaped struts or other struts, and replace non-watertight longitudinal bulkheads in the traditional design; the construction of the support is more convenient than that of a non-watertight longitudinal bulkhead. The bottom pier penetrating through the whole cargo hold is arranged in the middle of the double-layer bottom ship, the longitudinal continuous bottom pier not only ensures the total longitudinal strength of the ship bottom, but also increases the rigidity of the ship bottom, and the strut load at the strong frame is well transferred. The saddle is convenient for the structure reinforcement of the saddle of the liquid cargo tank, and the strength of the saddle is better ensured. The structure designed by the utility model has relatively light weight, and improves the economy of the ship better.
Drawings
FIG. 1 is a schematic diagram of a preferred embodiment of the present utility model.
Fig. 2 is a schematic top view of a pillar according to a preferred embodiment of the present utility model.
Fig. 3 is a schematic top view of a pier according to a preferred embodiment of the present utility model.
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown.
As shown in fig. 1, 2 and 3, a carbon dioxide liquefied gas carrier is provided in a cargo tank 10 having two liquid cargo tanks 16. The deck girder 11 is fixedly arranged on the top deck 14 of the cargo hold. The deck girder is provided below the top deck 14 of the cargo hold, and extends transversely along the ship.
Below the deck girder 11 there is provided a strut 13 in the midship. I.e. the struts 13 are provided at the midline of the vessel. The support column 13 is located between two liquid cargo tanks 16.
In this embodiment, the cross section of the strut 13 is i-shaped, i.e., the strut 13 is i-shaped steel.
In other embodiments, the support posts 13 may take other forms.
Deck stringers 12 are also secured to the cargo hold top deck 14. The deck stringers are secured below the cargo hold top deck 14 and extend longitudinally along the vessel. The deck stringers are fixedly secured to the deck strength rails.
The tops of the struts 13 are fixedly connected to both the deck girder 11 and the deck stringers 12.
In this embodiment, the top deck of the cargo compartment 10 is provided with a plurality of deck girders 11, and the space between adjacent deck girders is three-span or four-span.
A pillar 13 is arranged below each deck girder 11; i.e. the struts 13 are arranged at positions corresponding to the strong cross members of the deck with a maximum pitch of four rib pitches.
The bottom of the cargo hold 10 is fixedly provided with a bottom pier 20, and the bottom of the support column 13 is fixedly connected with the bottom pier 20.
The bottom piers 20 are continuously distributed longitudinally along the midship line within the cargo hold. The bottom pier 20 is located between the two cargo tanks 16.
The ship has a double bottom, and the bottom of the cargo hold 10 is a hull inner bottom plate 15.
The bottom pier 20 comprises a top plate 21 and two side plates 22; the bottoms of the two side plates 22 are fixedly connected with the bottom plate 15 in the ship body, and the tops of the two side plates 22 are fixedly connected with the top plate 21; the top plate 21 is transversely distributed; the support column 13 is fixedly connected to the top plate 21.
The top plate 21, the two side plates 22 and the inner bottom plate 15 of the ship body form an isosceles trapezoid; the two side plates 22 are symmetrically arranged on both sides of the centre line of the ship.
The distance between the tops of the two side plates 22 is smaller than the distance between the bottoms of the two side plates 22. Namely, the appearance of the bottom pier is narrow at the upper part and wide at the lower part.
The inside of the bottom pier 20 is provided with a reinforcing member 23 at a position corresponding to the connection with the pillar. The reinforcing member is arranged, so that the structural strength of the bottom pier can be improved, the supporting strength of the supporting column is improved, and the stability of the whole structure is improved. The reinforcing member is a conventional member, and will not be described in detail herein.
The utility model arranges the support column in the ship of each strong frame rib position of the cargo hold and arranges the bottom pier penetrating the whole cargo hold on the double-layer bottom of the cargo hold, thereby reducing the span of the deck strong beam and the bottom rib plate.
The support column is arranged in the ship, so that the port space and the starboard space are uniform and symmetrical, the space between two liquid cargo tanks in the liquid cargo tank is more abundant, and the requirement of an inspection channel is met.
The upper ends of the struts are connected with the deck stringers, and the lower ends of the struts are connected with the longitudinal bottom piers, so that the stress transmission of the upper ends and the lower ends of the struts is easy.
The struts provided in the vessel may be i-struts or other forms of struts, replacing the non-watertight longitudinal bulkheads in conventional designs. The construction of the support is more convenient than that of a non-watertight longitudinal bulkhead.
The bottom pier penetrating through the whole cargo hold is arranged in the middle of the double-layer bottom ship, the longitudinal continuous bottom pier not only ensures the total longitudinal strength of the ship bottom, but also increases the rigidity of the ship bottom, and the strut load at the strong frame is well transferred. The saddle is convenient for the structure reinforcement of the saddle of the liquid cargo tank, and the strength of the saddle is better ensured.
The structure designed by the utility model has relatively light weight, and improves the economy of the ship better.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.
Claims (10)
1. The middle longitudinal structure of the carbon dioxide liquefied gas carrier is arranged in a cargo tank with two liquid cargo tanks, a deck strong beam is fixedly arranged on a deck at the top of the cargo tank, and the middle longitudinal structure is characterized in that a strut is arranged below the deck strong beam in the middle of the carrier; the deck girder at the top of the cargo hold is fixedly connected with the deck girder and the deck girder at the same time at the top of the pillar; the bottom of the cargo hold is fixedly provided with a bottom pier, and the bottom of the support column is fixedly connected with the bottom pier.
2. The carbon dioxide liquefied gas carrier middle structure according to claim 1, wherein the bottom piers are continuously distributed longitudinally along the midship line in the cargo hold.
3. The carbon dioxide liquefied gas carrier medium longitudinal structure as set forth in claim 1, wherein a plurality of deck girders are provided on a top deck of the cargo hold, and a pillar is provided under each deck girder.
4. The carbon dioxide liquefied gas carrier middle structure of claim 1, wherein the deck stringers and the deck girder are disposed below a top deck of the cargo tank.
5. The carbon dioxide liquefied gas carrier medium longitudinal structure according to claim 4, wherein the deck stringers extend longitudinally along the vessel, the deck stringers being fixedly connected to the deck girder.
6. The carbon dioxide liquefied gas carrier middle longitudinal structure according to claim 1, wherein the bottom of the cargo hold is an inner bottom plate of the ship body; the bottom pier comprises a top plate and two side plates; the bottoms of the two side plates are fixedly connected with the bottom plate in the ship body, and the tops of the two side plates are fixedly connected with the top plate; the top plate is transversely distributed; the pillar is fixedly connected with the top plate.
7. The carbon dioxide liquefied gas carrier middle longitudinal structure as set forth in claim 6, wherein the top plate, the two side plates and the inner bottom plate of the hull enclose an isosceles trapezoid; the two side plates are symmetrically arranged on two sides of the center line of the ship.
8. The carbon dioxide liquefied gas carrier middle structure of claim 7, wherein a distance between tops of the two side plates is smaller than a distance between bottoms of the two side plates.
9. The carbon dioxide liquefied gas carrier medium longitudinal structure according to claim 1, wherein the inside of the bottom pier is provided with a reinforcing member at a position corresponding to the connection with the column.
10. The carbon dioxide liquefied gas carrier middle structure of claim 1, wherein the support column and the bottom pier are each located between two liquid cargo tanks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322269695.0U CN220662772U (en) | 2023-08-23 | 2023-08-23 | Middle longitudinal structure of carbon dioxide liquefied gas carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322269695.0U CN220662772U (en) | 2023-08-23 | 2023-08-23 | Middle longitudinal structure of carbon dioxide liquefied gas carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220662772U true CN220662772U (en) | 2024-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322269695.0U Active CN220662772U (en) | 2023-08-23 | 2023-08-23 | Middle longitudinal structure of carbon dioxide liquefied gas carrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220662772U (en) |
-
2023
- 2023-08-23 CN CN202322269695.0U patent/CN220662772U/en active Active
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