CN112758243A

CN112758243A - Ship superstructure and LNG (liquefied natural gas) dual-fuel bulk cargo ship comprising same

Info

Publication number: CN112758243A
Application number: CN202110179811.2A
Authority: CN
Inventors: 王学志; 华向阳; 周杰; 周小敏; 袁欢; 储年生
Original assignee: Shanghai Waigaoqiao Shipbuilding Co Ltd
Current assignee: Shanghai Waigaoqiao Shipbuilding Co Ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-05-07

Abstract

The invention discloses a ship superstructure and an LNG (liquefied natural gas) dual-fuel bulk cargo ship comprising the same, wherein LNG tanks are arranged on one side or two sides of the ship superstructure, the ship superstructure comprises a building main body and an escape channel arranged in the building main body, the escape channel extends in the plane and height direction, the building main body is provided with a main body fire-resistant side surface arranged close to the LNG tanks, and at least one part of the escape channel extends close to the main body fire-resistant side surface and is separated from the main body fire-resistant side surface through a main body bulkhead. The bulkhead is additionally arranged between the danger escaping channel and the LNG tank in the ship superstructure, so that the danger escaping channel is always isolated from the LNG tank when a dangerous case occurs, the safety of an danger escaping route is guaranteed, and the probability of casualties is reduced.

Description

Ship superstructure and LNG (liquefied natural gas) dual-fuel bulk cargo ship comprising same

Technical Field

The invention relates to a ship superstructure and an LNG (liquefied natural gas) dual-fuel bulk cargo ship comprising the same.

Background

Currently, an LNG dual-fuel bulk carrier, i.e., a bulk carrier using LNG (liquefied natural gas) and diesel oil as a mixed fuel, is an optimal solution considering costs and emissions comprehensively. However, in regard to a dual-fuel bulk cargo ship with two LNG tanks on two sides of an upper building of the ship, the arrangement of the escape passage cannot adopt a scheme of two side inclined ladder passages as a conventional bulk cargo ship, otherwise once a fire or explosion occurs in the escape process, serious casualty accidents can be caused. And the superstructure inner structure is compact, and the passway for escaping is usually directly next to the LNG fluid reservoir, has certain potential safety hazard.

Disclosure of Invention

The invention aims to overcome the defect that an escape route in a ship superstructure of an LNG (liquefied natural gas) dual-fuel bulk cargo ship is unsafe in the prior art, and provides a ship superstructure and an LNG dual-fuel bulk cargo ship comprising the same.

The invention solves the technical problems through the following technical scheme:

a ship superstructure, one side or two sides of which are provided with LNG tanks, comprising a superstructure main body and a danger escape passage arranged inside the superstructure main body, wherein the danger escape passage extends in the plane and height direction, the superstructure main body is provided with a main body fire-resistant side surface arranged close to the LNG tanks, and at least one part of the danger escape passage extends close to the main body fire-resistant side surface and is separated from the main body fire-resistant side surface by a main body compartment.

In the invention, by adopting the structure form, the bulkhead is additionally arranged between the danger escaping channel and the LNG tank of the superstructure of the ship, so that the danger escaping channel is always kept fire-resistant and isolated from the LNG tank when a dangerous case occurs, thereby ensuring the safety of the danger escaping channel and reducing the probability of casualties.

Preferably, the superstructure body has rooms therein, and at least a part of the escape route extends to a side close to the room remote from the fire-resistant side of the superstructure body.

In the invention, by adopting the structure form, the room between the danger escaping channel and the LNG liquid tank is used for replacing a compartment to play a role in isolation, so that the safety of the danger escaping route is ensured while the space is saved.

Preferably, said escape route extends to the door position of all said rooms.

In the invention, by adopting the structure, all the personnel in all the rooms can enter the danger escaping channel at the first time to start danger avoiding.

Preferably, the danger escaping channel comprises a main danger escaping channel and a secondary danger escaping channel, wherein the main danger escaping channel is closer to the stern than the secondary danger escaping channel.

In the invention, by adopting the structure, the danger can be more orderly escaped when the dangerous case occurs, the crowding is avoided, and all people can reach the safer stern part through the escape passage.

Preferably, the escape route comprises a stairwell route extending in the height direction, wherein the main escape routes of each floor of the building main body in the height direction are connected with each other through the stairwell route; the secondary escape routes of each floor of the building main body in the height direction are connected through another stairwell route.

In the invention, the two escape routes are not interfered with each other by adopting the structural form, and all floors of the ship superstructure can directly reach a safety area through the escape routes and the stairwells.

Preferably, one side of the stairwell passageway is close to the main body fire resistant side and is separated from the main body fire resistant side by the main body compartment, and the main body compartment corresponding to the stairwell passageway extends along the height direction along the stairwell passageway.

In the invention, the stair well is isolated from the LNG tank in a fire-resistant manner by adopting the structure, so that the stair well is not influenced in the escaping process.

Preferably, the ship superstructure further comprises an extension passage extending outside the building body and bypassing the LNG tank, wherein at least one end of the extension passage is communicated to the escape passage and the other end is communicated to a lifeboat platform.

In the invention, by adopting the structure, when the dangerous case is serious, the escape passage and the extension section thereof can directly reach the lifeboat platform to escape from the accident site.

Preferably, one side of the extension passage, which is close to the LNG tank, is provided with an extension fire-resistant side, and the extension fire-resistant side is separated from the extension passage by an extension compartment.

In the invention, by adopting the structure form and additionally arranging the extension bay, the extension section channel and the LNG tank are isolated by the extension bay, so that the safety of the extension section channel of the escape route is ensured.

Preferably, the side of the body compartment and/or the extension compartment adjacent the LNG tank is provided with a fire barrier layer of class a-60.

In the invention, the structure is adopted, so that the compartment is guaranteed to have enough safety period when the dangerous case happens, and the safety of the escape passage is further guaranteed.

An LNG dual fuel bulk carrier comprising a vessel superstructure as described above.

In the invention, by adopting the structure, the LNG bulk cargo ship can carry out danger escaping by utilizing the ship superstructure and the danger escaping channel, and the overall safety of the LNG bulk cargo ship is improved.

The positive progress effects of the invention are as follows: the bulkhead is additionally arranged between the danger escaping channel and the LNG tank in the ship superstructure, so that the danger escaping channel is always isolated from the LNG tank when a dangerous case occurs, the safety of an danger escaping route is guaranteed, and the probability of casualties is reduced.

Drawings

Fig. 1 is a plan view showing the arrangement of the main deck escape way of the superstructure in an embodiment of the present invention.

Fig. 2 is a plan view showing the arrangement of the escape way of the deck a of the superstructure in the embodiment of the present invention.

Fig. 3 is a plan view showing the arrangement of the escape way of the superstructure C in the embodiment of the present invention.

Fig. 4 is a partial structural view of the fire resistant side of the main body of the superstructure in an embodiment of the present invention.

FIG. 5 is a schematic side view of a superstructure section in an embodiment of the invention.

Description of reference numerals:

superstructure main body 100

Fire resistant side 101 of the body

Escape route 110

Main escape route 111

Secondary escape route 112

Body compartment 120

Room 130

Stairwell passageway 140

Extension passage 150

Extended fire resistant side 151

Extension bay 160

LNG tank 200

Lifeboat platform 300

Lifeboat 301

Emergency escape apparatus 302

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

As shown in fig. 1 to 5, a preferred embodiment of the present invention provides a ship superstructure, which is provided with an LNG tank 200 at one side or both sides thereof, and comprises a superstructure main body 100 and a danger escape passage 110 provided inside the superstructure main body 100, wherein the danger escape passage 110 extends in a plane and a height direction, and the superstructure main body 100 has a main body fire resistant side 101 provided adjacent to the LNG tank 200, wherein at least a portion of the danger escape passage 110 extends adjacent to the main body fire resistant side 101 and is separated from the main body fire resistant side 101 by a main body compartment 120.

In the present embodiment, the body compartment 120 is additionally provided between the danger escaping path 110 and the LNG tank 200 in the superstructure body 100, so that the danger escaping path 110 is always kept fire-resistant and isolated from the LNG tank 200 when a dangerous situation occurs. Even if the LNG tank 200 is damaged and leaks or burns, the escape route 110 is not affected by the damage for a long enough time, and the escape time is won for the personnel in the superstructure main body 100, so that the safety of the escape route 110 is ensured, and the probability of casualties is reduced.

Specifically, the superstructure main body 100 in the present embodiment has a main deck, an a deck, a B deck, a C deck, and the like, and the escape routes 110 provided at the respective decks in the superstructure main body 100 can be used for escaping from a crew or passengers at any position, and always maintain safe isolation from the LNG tank 200. The danger escaping channel 110 is prevented from being dangerous due to combustion caused by leakage of the LNG tank 200, and secondary accidents are avoided.

As shown in fig. 1 to 5, the interior of the superstructure main body 100 has a plurality of rooms 130, at least a part of the escape route 110 extends to a side close to the room 130 away from the fire-resistant side 101 of the main body, and the escape route 110 extends to the door positions of all the rooms 130.

In this embodiment, to save space, the room 130 for crew or passengers between the escape route 110 and the fire resistant side 101 of the main body is used as a compartment to perform a safety isolation function. Compared with the main body compartment 120 arranged on the side of the whole escape route 110 close to the fire-resistant side 101 of the main body, the existing room 130 is used for replacing part of the main body compartment 120 to realize the function of safe isolation, thereby saving the space and being easier to construct.

Specifically, when the rooms 130 of all crews or passengers are provided, the rooms 130 are arranged according to actual use requirements, and a corridor outside the room 130 on the side close to the LNG tank 200 is provided as a part of the escape route 110. The main body compartment 120 is added to the part of the escape route 110 not isolated by the room 130 to ensure the integrity of the isolation and ensure that all parts of the escape route 110 are always safe during the escape process.

As shown in fig. 1-5, escape passage 110 includes a primary escape passage 111 and a secondary escape passage 112, with primary escape passage 111 being closer to the stern than secondary escape passage 112. The escape route 110 includes a stairwell route 140 extending in a height direction, wherein the main escape routes 111 of the upper building body 100 at each floor in the height direction are connected by the stairwell route 140; the sub escape routes 112 of the upper building body 100 at each floor in the height direction are connected to each other through another stairwell route 140. One side of the stairwell passageway 140 is adjacent to the main body fire resistant side 101 and is separated from the main body fire resistant side 101 by a main body compartment 120, and the main body compartment 120 corresponding to the stairwell passageway 140 extends in the height direction along with the stairwell passageway 140.

In the present embodiment, in order to enable the escape routes 110 of the respective floors inside the superstructure main body 100 to communicate with each other, the main escape route 111 and the sub escape route 112 are connected in the vertical direction by two stairwell routes 140, respectively. The crew or passengers near the main escape route 111 can escape through the main escape route 111 and reach the safe floor or deck through the stairwell route 140 corresponding to the main escape route 111; the crew or passengers closer to the secondary escape route 112 can escape through the secondary escape route 112 and reach the safe floor or deck through the stairwell route 140 corresponding to the secondary escape route 112. This arrangement not only allows for proper diversion so that the escape route 110 is not overcrowded, but also ensures that the crew or passengers on each floor can quickly escape along the shortest route.

As shown in fig. 1 to 5, the ship superstructure further includes an extension passage 150, the extension passage 150 extending outside the building body 100 and bypassing the LNG tank 200, wherein at least one end of the extension passage 150 is connected to the escape passage 110 and the other end is connected to the lifeboat platform 300. The side of the extension passage 150 adjacent to the LNG tank 200 is provided with an extension fire resistant side 151, and the extension fire resistant side 151 is separated from the extension passage 150 by an extension compartment 160. A lifeboat 301 and an emergency escape apparatus 302 are arranged on the lifeboat platform 300.

Generally, the emergency of an emergency accident can be controlled for a certain period of time, but when a special situation is met, the ship needs to be evacuated, and the escape route should finally lead to the lifeboat 301 or the emergency escape device 302, so that the crew or passengers can rapidly escape from the accident ship to ensure safety.

Specifically, in the embodiment, by additionally providing the extension passage 150, when the dangerous situation is serious, the personnel can directly pass through the escape passage 110 and the extension passage 150 to reach the lifeboat platform 300, and then take the lifeboat 301 or the emergency escape device 302 to escape from the accident scene. In order to further ensure safety, an extended fire-resistant side 151 is additionally arranged on one side of the extended section channel 150 close to the LNG tank 200, so that all escape routes are ensured to have fire-resistant safety, and accidents on the last escape route are prevented.

As shown in fig. 1-5, the body compartment 120 and the extension compartment 160 have a fire barrier layer of class a-60 on the side adjacent to the LNG tank 200.

Specifically, a body compartment 120 and an extension compartment 160 are provided at one side of the superstructure body 100 and the extension passage 150 adjacent to the LNG tank 200, respectively. In order to improve the fire resistance and to increase the time for escaping, a class a-60 fire barrier is added to the body compartment 120 and the extension compartment 160 on the side near the LNG tank 200.

Wherein, level A-60 represents: the fire barrier layer is made of steel or other equivalent materials; the fire barrier layer is suitably reinforced against flexing; the fireproof separation layer is insulated by non-combustible materials, so that the average temperature of the back fire surface of the fireproof separation layer is not increased by more than 140 ℃ than the initial temperature within 60min, and the temperature of any point including any joint is not increased by more than 180 ℃ than the initial temperature; the fire barrier layer should be constructed to prevent the passage of smoke and flames through the 1h standard fire test to the end.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention 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 spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. A vessel superstructure having LNG tankers located on one or both sides thereof, comprising a superstructure body and a hedging passageway located within the superstructure body, wherein the hedging passageway extends in a planar and height direction, the superstructure body having a body fire resistant side located adjacent the LNG tankers, wherein at least a portion of the hedging passageway extends adjacent the body fire resistant side and is separated from the body fire resistant side by a body compartment.

2. A vessel superstructure according to claim 1, wherein said superstructure body has a plurality of rooms therein, at least a portion of said escape route extending to a side adjacent said room remote from said body fire resistant side.

3. A vessel superstructure according to claim 2, wherein said escape route extends to the door positions of all said rooms.

4. Marine superstructure according to claim 1, characterized in that said escape routes comprise a primary escape route and a secondary escape route, said primary escape route being closer to the stern than said secondary escape route.

5. The marine superstructure according to claim 4, wherein said escape routes comprise stairwell routes extending in a height direction, wherein said main escape routes of each of said superstructure main bodies in the height direction are connected to each other by one of said stairwell routes;

the secondary escape routes of the upper building main body at each floor along the height direction are connected through another stairwell route.

6. A vessel superstructure according to claim 5, wherein said stairwell access is flanked on one side by said body fire resistant side and separated therefrom by said body compartment, said body compartment corresponding to said stairwell access extending heightwise with said stairwell access.

7. The vessel superstructure of claim 1, further comprising an extender channel extending outside of said building body and bypassing said LNG tank, wherein at least one end of said extender channel is connected to said escape channel and the other end is connected to a lifeboat platform.

8. The vessel superstructure according to claim 7, wherein said side of said extension-section channel adjacent to said LNG tank is provided with an extension fire resistant side, said extension fire resistant side being separated from said extension-section channel by an extension compartment.

9. A vessel superstructure according to claim 8, wherein the side of the body compartment and/or the extension compartment adjacent the LNG tank is provided with a fire barrier layer of class a-60.

10. An LNG dual fuel bulk carrier, characterized in that it comprises a ship superstructure according to any one of claims 1-9.