阅读说明：本技术 液化气船 (Liquefied gas carrier ) 是由 朱彦 陈兵 郑双燕 蒋雄健 谢润芳 李云轩 于 2021-07-28 设计创作，主要内容包括：本申请公开一种液化气船,包括液货舱和液货舱围护系统,液货舱围护系统包括船壳外板和主甲板,主甲板的侧端与船壳外板的上端连接；主甲板上设置有集管,主甲板与集管出口对应的区域开设有开口,开口内设有与主甲板相距预设高度的集液盘,集管出口与集液盘相距预定高度；集液盘与主甲板的高度差满足：在停靠码头时,集管出口的高度与码头的装卸高度匹配,集管与码头的装卸管道对接。在船舶型深增加的情况下,本申请能够在主甲板原有结构的基础上,在主甲板与集管出口对应的区域开设开口,并在开口内设有与主甲板相距预设高度的集液盘,以调整集管出口的高度,使得集管出口的高度与码头的装卸高度匹配,进而实现集管与码头的装卸管道的对接。(The application discloses a liquefied gas carrier, which comprises a liquid cargo tank and a liquid cargo tank containment system, wherein the liquid cargo tank containment system comprises a shell plate and a main deck, and the side end of the main deck is connected with the upper end of the shell plate; a collecting pipe is arranged on the main deck, an opening is formed in the area of the main deck corresponding to an outlet of the collecting pipe, a liquid collecting disc which is away from the main deck by a preset height is arranged in the opening, and a preset height is formed between the outlet of the collecting pipe and the liquid collecting disc; the height difference between the liquid collecting disc and the main deck meets the following requirements: when the wharf is parked, the height of the outlet of the collecting pipe is matched with the loading and unloading height of the wharf, and the collecting pipe is in butt joint with the loading and unloading pipeline of the wharf. Under the condition that the ship type is increased deeply, the opening is arranged in the area, corresponding to the outlet of the collecting pipe, of the main deck on the basis of the original structure of the main deck, the liquid collecting disc with the preset height away from the main deck is arranged in the opening, the height of the outlet of the collecting pipe is adjusted, the height of the outlet of the collecting pipe is matched with the loading and unloading height of the wharf, and therefore the butt joint of the collecting pipe and the loading and unloading pipeline of the wharf is achieved.)

1. A liquefied gas carrier, comprising:

a cargo tank;

a cargo tank containment system having a cavity for receiving the cargo tank; the liquid cargo hold containment system comprises a hull outer plate and a main deck, wherein the side end of the main deck is connected with the upper end of the hull outer plate;

a header is arranged on the main deck, an opening is formed in the area of the main deck corresponding to an outlet of the header, a liquid collecting tray with a preset height away from the main deck is arranged in the opening, and a preset height away from the outlet of the header and the liquid collecting tray is arranged; the height difference between the liquid collecting disc and the main deck meets the following requirements: when the wharf is parked, the height of the outlet of the collecting pipe is matched with the loading and unloading height of the wharf, and the collecting pipe is in butt joint with the loading and unloading pipeline of the wharf.

2. The liquefied gas carrier as claimed in claim 1, wherein a top deck is formed at the intersection of the outer hull plate and the main deck, the top deck being spaced apart from the cavity, the top deck including a first compartment and a second compartment independently disposed, the first compartment being located below the opening, and the second compartment being located below a non-opening area in the main deck and being a watertight compartment.

3. Liquefied gas carrier as claimed in claim 2, wherein a drain line is provided in the first compartment.

4. The lpg carrier of claim 1, wherein a U-shaped connector is embedded in the opening, and the drip pan is secured within a U-shaped cavity of the U-shaped connector.

5. Liquefied gas carrier as claimed in claim 1, characterized in that the projection of the drip pan coincides with the projection of the opening in a predetermined projection direction, or falls within the projection of the opening, the predetermined projection direction being a horizontal direction.

6. The liquefied gas carrier as claimed in any one of claims 1 to 5, wherein the height difference between the drip pan and the main deck is adjusted according to the height of a loading/unloading pipe of the quay.

7. The liquefied gas carrier as claimed in any one of claims 1 to 5, wherein the header outlet is spaced from the drip pan by a distance equal to or greater than 900 mm.

8. The liquefied gas carrier as claimed in any one of claims 1 to 5, wherein the outlet of the header is connected to a loading and unloading pipe of a quay via a connecting flange, a projection of the connecting flange falls within a projection of the liquid collecting tray in a predetermined projection direction, and the predetermined projection direction is a horizontal direction.

9. The liquefied gas carrier as claimed in claim 1, wherein the main decks are provided in two groups, and the two groups of main decks are symmetrically arranged on the liquefied gas carrier in a width direction of the hull.

Technical Field

The application relates to the technical field of liquefied petroleum gas transportation, in particular to a liquefied gas carrier.

Background

Liquefied petroleum gas is a derivative product of natural gas production and crude oil refining, and is increasingly gaining importance from the market, wherein a liquefied gas carrier is a main carrier for transporting the liquefied petroleum gas. To better meet market demand, the increase in the tank capacity of lng ships to higher levels has become a major trend in the lng ship design and construction market. Due to the limitation of the size of a wharf channel, the liquefied gas carrier is difficult to break through in the major dimensions of the length, the width and the like of the ship when developing to a large scale, and the situation that the ship type is increased inevitably exists. The liquefied petroleum gas carrier generally comprises a main deck, wherein a collecting pipe is arranged at a position which is away from the main deck by a preset height, and when the depth of the carrier is increased, the position of the collecting pipe is too high, the collecting pipe is not matched with the loading and unloading height of a wharf, and the collecting pipe is difficult to be butted with a loading and unloading pipeline of the wharf, so that the loading and unloading process of the liquefied petroleum gas is influenced.

Therefore, it is an urgent problem in the art to provide a liquefied gas carrier that meets the requirement of the height of the header when the depth of the vessel increases.

Disclosure of Invention

The utility model aims at providing a liquefied gas carrier, it can be on the basis of the original structure of main deck, offers the opening in the main deck with the region that the header export corresponds to be equipped with in the opening and separate the drip pan of preset height with the main deck, adjust the height that the header exported through the height that reduces the drip pan, make the height that the header exported and the loading and unloading height of pier match, and then realize the butt joint of header and the loading and unloading pipeline of pier.

In a first aspect, an embodiment of the present application provides a liquefied gas carrier, including:

a cargo tank;

the liquid cargo hold containment system is provided with a cavity for accommodating the liquid cargo hold; the liquid cargo hold containment system comprises a hull outer plate and a main deck, wherein the side end of the main deck is connected with the upper end of the hull outer plate;

a collecting pipe is arranged on the main deck, an opening is formed in the area of the main deck corresponding to an outlet of the collecting pipe, a liquid collecting disc which is away from the main deck by a preset height is arranged in the opening, and a preset height is formed between the outlet of the collecting pipe and the liquid collecting disc; the height difference between the liquid collecting disc and the main deck meets the following requirements: when the wharf is parked, the height of the outlet of the collecting pipe is matched with the loading and unloading height of the wharf, and the collecting pipe is in butt joint with the loading and unloading pipeline of the wharf.

In one possible embodiment, the junction of the outer shell of the hull and the main deck is formed with a roof deck spaced from the cavity, the roof deck comprising independently disposed first and second compartments, the first compartment being located below the opening and the second compartment being located below the non-open area in the main deck and being a watertight compartment.

In a possible embodiment, a drain line is provided in the first compartment.

In a possible embodiment, a U-shaped connecting piece is embedded in the opening, and the liquid collecting disc is fixed in a U-shaped cavity of the U-shaped connecting piece.

In a possible embodiment, the projection of the drip pan coincides with the projection of the opening in a predetermined projection direction, or falls within the projection of the opening, the predetermined projection direction being the horizontal direction.

In a possible embodiment, the height difference between the drip pan and the main deck is adjusted according to the height of the loading and unloading pipes of the quay.

In one possible embodiment, the header outlet is at a distance equal to or greater than 900mm from the drip pan.

In a possible embodiment, the outlet of the header is connected to the loading and unloading pipes of the quay by means of a connection flange, the projection of which in a predetermined projection direction falls inside the projection of the drip pan, the predetermined projection direction being the horizontal direction.

In a possible embodiment, the main decks comprise two groups, and the two groups of main decks are symmetrically arranged on the liquefied gas ship along the width direction of the ship body.

Compared with the prior art, the beneficial effects of this application are as follows at least:

under the condition that the ship type is deeply increased, the opening is formed in the area, corresponding to the outlet of the collecting pipe, of the main deck on the basis of the original structure of the main deck, the liquid collecting disc with the preset height away from the main deck is arranged in the opening, and under the condition that the distance between the outlet of the collecting pipe and the liquid collecting disc is a fixed value, the height of the outlet of the collecting pipe is adjusted by reducing the height of the liquid collecting disc, so that the height of the outlet of the collecting pipe is matched with the loading and unloading height of a wharf, and the butt joint of the collecting pipe and the loading and unloading pipeline of the wharf is achieved. And, the roof side cabin of hull planking and main deck junction includes independent setting's first cabin and second cabin, will be located the second cabin of non-open region below in the main deck as the watertight cabin, can further improve boats and ships's stability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a front sectional view of a liquefied gas carrier according to an embodiment of the present application, the liquefied gas carrier being shown in a position corresponding to an opening area of a main deck;

FIG. 2 is an enlarged view of area A of FIG. 1;

FIG. 3 is a front cross-sectional view of a liquefied gas carrier at a location corresponding to a non-open area in a main deck according to an embodiment of the present application;

fig. 4 is an enlarged view of the region B in fig. 3.

Illustration of the drawings:

100 a main deck; 110 openings; 200 liquid collecting discs; 300 a header; 400 outer hull plates; 500 a first compartment in a roof deck; 510 a second compartment in the roof side compartment; a 600 chamber; 700 liquid cargo tank; 800U-shaped connecting piece.

Detailed Description

The following detailed description of embodiments of the present application will be provided in conjunction with the accompanying drawings, which are included to illustrate and not to limit the present application.

It should be noted that the drawings provided in the present embodiment are only schematic and show the components relevant to the present application, rather than the number, shape and size of the components in actual implementation, and the type, number and ratio of the components in actual implementation may be changed arbitrarily and the layout of the components may be more complex.

For convenience of description, directions are defined herein as follows: along the height direction of the ship body, the direction from the top of the ship to the bottom of the ship is vertical, the direction pointing to the top of the ship is upward, and the direction pointing to the bottom of the ship is downward; the transverse direction is from the port to the starboard of the ship body along the width direction of the ship body; the longitudinal direction is from the fore to the stern along the length direction of the ship body. The above directional definitions do not have any limiting effect on the structure of the present application.

According to one aspect of the present application, a liquefied gas carrier is provided.

Referring to fig. 1 to 4, the liquefied gas carrier includes a cargo tank 700 and a cargo tank containment system. The cargo tank containment system has a receptacle 600 for receiving a cargo tank 700 and includes an outer hull plate 400 and a main deck 100, with the side ends of the main deck 100 being connected to the upper end of the outer hull plate 400.

A header 300 is arranged on the main deck 100, an opening 110 is arranged on the main deck 100 in the area corresponding to the outlet of the header 300, and a liquid collecting tray 200 with a preset height away from the main deck 100 is arranged in the opening 110. The outlet of header 300 is spaced a predetermined height from drip pan 200, specifically, the distance D of the outlet of header 300 from drip pan 200₁Obtained according to the specification and the operating standard requirements, D above₁Preferably equal to or greater than 900 mm. The height difference between drip pan 200 and main deck 100 satisfies: when docking, the height of the outlet of the manifold 300 matches the loading and unloading height of the dock and the manifold 300 interfaces with the loading and unloading pipes of the dock. In this embodiment, the height difference between drip pan 200 and main deck 100 is adjusted according to the height of the loading and unloading pipes of the dock.

When the hold capacity of the existing liquefied gas carrier is increased, the depth of the ship is increased inevitably, namely, the main deck is lifted100 to increase the height of the hull. When the main deck 100 is elevated, the manifold 300 on the main deck 100 is also elevated, so that the height of the manifold 300 does not match the loading and unloading height of the wharf, and the manifold is difficult to interface with the loading and unloading pipelines of the wharf. On the basis of the original structure of the main deck 100, the present application is provided with an opening 110 in the area of the main deck 100 corresponding to the outlet of the header 300, a liquid collecting tray 200 with a preset height away from the main deck 100 is arranged in the opening 110, and the distance D between the outlet of the header 300 and the liquid collecting tray 200₁In the case of fixed value, the height of the outlet of the header 300 is adjusted by lowering the height of the drip pan 200 so that the height of the outlet of the header 300 matches the loading and unloading height of the wharf, thereby achieving the butt joint of the header 300 with the loading and unloading pipes of the wharf.

In one embodiment, referring to FIGS. 1-4, the distance D between the outlet of the manifold 300 and the waterline of the liquefied gas carrier₂Within a preset range, the above-mentioned liquefied gas carrier draft line refers to a summer load line of the ship and can also be described as the maximum draft of the ship, specifically, the distance D between the outlet of the header 300 and the liquefied gas carrier draft line₂And adjusting according to the loading and unloading height of the wharf.

In one embodiment, referring to fig. 1 and 3, the intersection of the outer shell 400 and the main deck 100 forms a roof deck spaced from the cavity 600, the roof deck comprising a first compartment 500 and a second compartment 510 independently disposed, the first compartment 500 being located below the opening 110 in the main deck 100, and the second compartment 510 being located below the non-open area in the main deck 100 and being a watertight compartment.

Preferably, a drain pipe may be disposed in the first chamber 500 according to the accumulated water discharge requirement.

In one embodiment, referring to fig. 1 and 2, the main decks 100 comprise two sets, and the two sets of main decks 100 are symmetrically arranged on the liquefied gas ship in the width direction of the ship body. Each set of main decks 100 extends in the width direction of the hull, and the side ends of the main decks 100 on the port or starboard side of the hull are connected to the upper ends of the outer shells 400. The upper end of the outer hull plate 400 is preferably a predetermined height above the main deck 100.

The region of each set of main decks 100 corresponding to the outlet of the header 300Openings 110 are formed in the areas, liquid collecting trays 200 which are arranged in the openings 110 and have preset heights with the main deck 100 are arranged, the heights of the liquid collecting trays 200 are lower than the height of the main deck 100, and the height difference between the liquid collecting trays 200 and the main deck 100 is adjusted according to the loading and unloading heights of the wharf. Distance D between outlet of header 300 and drip pan 200₁For constant value, the distance D between the outlet of the header 300 and the header pan 200₁In the case of fixed value, the height of the outlet of the header 300 is adjusted by lowering the height of the drip pan 200 so that the height of the outlet of the header 300 matches the loading and unloading height of the wharf, thereby achieving the butt joint of the header 300 with the loading and unloading pipes of the wharf.

Drip pan 200 is mounted within opening 110 in a suitable manner known in the art. For example, a U-shaped connector 800 is embedded in the opening 110, and the drip pan 200 is fixed in the U-shaped cavity defined by the U-shaped connector 800. The U-shaped connector 800 may be welded to the main deck 100 near the opening 110 and may be removably connected to the main deck 100 near the opening 110, including a threaded connection or a snap-fit connection. As another example, the drip pan 200 is provided with connectors at both sides thereof, respectively, and one end of the connector, which is not connected to the drip pan 200, is fixed to the main deck 100 near the opening 110. Likewise, the connectors may be welded to the main deck 100 near the opening 110, or may be removably connected to the main deck 100 near the opening 110, including threaded or snap connections.

Preferably, the U-shaped connector 800 or the connector can be made of polyurethane or the like.

Preferably, the projection of drip pan 200 coincides with the projection of opening 110 in a predetermined projection direction, or the projection of drip pan 200 falls within the projection of opening 110, the predetermined projection direction being a horizontal direction.

In one embodiment, the manifold 300 has an inlet in communication with the cargo tank 700 and an outlet in communication with the loading and unloading pipe of the terminal via a connecting flange, and the manifold 300 is primarily used to transfer the liquefied petroleum gas in the cargo tank 700 to the loading and unloading pipe of the terminal when the liquefied petroleum gas carrier is parked at the terminal. In this embodiment, the header 300 includes liquid phase pipes and gas phase pipes, and the header 300 is fixed to the main deck 100 by brackets.

Preferably, the distance between the connection flange at the outlet of the header 300 and the port or starboard side is 1m or more, depending on the installation requirements of the main deck 100, such as outfitting.

Liquefied petroleum gas has low temperature characteristic, need arrange drip pan 200 under the flange at header 300 exit, this drip pan 200 adopts low temperature resistant material such as stainless steel to make, the thickness of drip pan 200 is not less than 2mm, and the projection of flange will fall inside the projection of drip pan 200 in predetermined projection direction to guarantee that the liquefied petroleum gas homoenergetic that reveals in the transportation process falls on drip pan 200, avoid the direct damage that causes main deck 100 of falling on main deck 100 of liquefied petroleum gas who reveals, thereby influence the reliability of liquefied gas carrier. The predetermined projection direction is a horizontal direction.

In one embodiment, a gap is formed between the outer hull plate 400 and the cargo tank 700, and the gap is filled with an inert gas such as nitrogen gas to prevent a fire or explosion when the liquefied petroleum gas is leaked. The interval between the outer hull plate 400 and the cargo tank 700 is preferably 1m or more. In order to improve the structural strength of the outer hull plate 400, a plurality of reinforcing plates may be arranged on the inner surface of the outer hull plate 400 in the height direction of the hull, and the intervals between the adjacent reinforcing plates may be the same or different.

Similarly, in order to improve the structural strength of the main deck 100, a plurality of reinforcing plates may be disposed on the inner surface of the main deck 100 in the width direction of the hull, and the intervals between the adjacent reinforcing plates may be the same or different.

According to the technical scheme, under the condition that the ship type depth is increased, the opening 110 is formed in the area, corresponding to the outlet of the collecting pipe 300, of the main deck 100 on the basis of the original structure of the main deck 100, the liquid collecting disc 200 with the preset height away from the main deck 100 is arranged in the opening 110, and the distance D between the outlet of the collecting pipe 300 and the liquid collecting disc 200₁In the case of fixed value, the height of the outlet of the header 300 is adjusted by lowering the height of the drip pan 200 so that the height of the outlet of the header 300 matches the loading and unloading height of the wharf, thereby achieving the butt joint of the header 300 with the loading and unloading pipes of the wharf. And, the hull outer plate 400 and the main hullThe roof side compartment where the panels 100 meet comprises the first compartment 500 and the second compartment 510 which are independently arranged, and the second compartment 510 located below the non-opening area in the main deck 100 is used as a watertight compartment, so that the stability of the ship can be further improved.

The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the technical principle of the present application, and these modifications and substitutions should also be regarded as the protection scope of the present application.