Ventilation device of LNG (Liquefied Natural Gas) filling ship and LNG filling ship

Abstract

The invention provides a ventilation device of an LNG (Liquefied Natural Gas) filling ship and the LNG filling ship, which can effectively solve the problems that a traditional built-in fan and an air duct are difficult to arrange in a cargo mechanical chamber of the LNG filling ship in an inland river, and the safety of the ship is not facilitated. The ventilation device of the LNG filling ship comprises a cargo mechanical chamber, an air duct and a fan. The cargo machine room is arranged on a deck of the ship. The air duct is arranged on the side wall of the cargo mechanical chamber in a suspended mode and located outside the cargo mechanical chamber, the inner space of the air duct communicates with the inner space of the cargo mechanical chamber, and a fan hole is formed in the wall of the air duct. And the fan is arranged in the air duct and is used for ventilating or exhausting air into the cargo mechanical chamber.

Description

Technical Field

[0001] The present application relates to the field of ship technology, and in particular to a ventilation device for an LNG bunkering ship and an LNG bunkering ship. Background Art

[0002] As the main artery of inland waterway shipping in my country, the annual transportation volume of the Yangtze River is as high as 3 billion tons, accounting for more than 60% of the total inland waterway shipping. However, Yangtze River shipping has long used traditional fuels such as diesel and heavy oil as ship power fuel. Compared with ships fueled by LNG, the comprehensive pollution emissions of traditional fuel ships are 70% higher. The emissions of traditional fuel ships seriously affect the ecological environment along the Yangtze River.

[0003] Since inland LNG bunkering ships need to cross many Yangtze River bridges along the Yangtze River, the height of the cargo machinery room on the deck is limited. The cargo machinery room is cramped and many equipments need to be arranged, so it is impossible to reserve enough space for fans and air ducts. At the same time, the cargo machinery room is mainly responsible for the relevant processing of liquefied natural gas. When performing operations such as liquefied natural gas filling, the top of the cargo machinery room is a dangerous area, which is not conducive to the arrangement of fans. Therefore, it is very difficult to arrange traditional built-in fans and air ducts in the cargo machinery room of inland LNG bunkering ships, and it is not conducive to the safety of the ship. Summary of the invention

[0004] The present application provides a ventilation device for an LNG bunkering ship and an LNG bunkering ship, which can effectively improve the problem that the arrangement of traditional built-in fans and air ducts in the cargo machinery room of an inland LNG bunkering ship is difficult and not conducive to the safety of the ship.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] In a first aspect, the present application provides a ventilation device for an LNG bunkering ship, comprising a cargo machinery room, an air duct and a fan. The cargo machinery room is arranged on the deck of the ship. The air duct is suspended on the side wall of the cargo machinery room and is located outside the cargo machinery room, the internal space of the air duct is interconnected with the internal space of the cargo machinery room, and the wall of the air duct has a fan hole. The fan is arranged in the air duct for ventilating or extracting air into the cargo machinery room.

[0007] According to some embodiments of the present application, the cargo machinery room has a front wall, the front wall is provided with an inlet and outlet, and the air duct is arranged on the top of the front wall and extends outward.

[0008] According to some embodiments of the present application, the air duct is a box structure, including a top plate, a left wall plate, a right wall plate, a front wall plate, and a bottom plate. The top plate and the bottom plate are opposite to each other, the left wall plate and the right wall plate are opposite to each other, the front wall plate and the rear wall plate are opposite to each other, the rear wall plate is formed with a first through hole, the side wall of the cargo machinery room is formed with a second through hole, the rear wall plate is connected to the side wall, and the first through hole is connected to the second through hole.

[0009] According to some embodiments of the present application, the first through hole includes two independent sub-through holes, the two sub-through holes are arranged along the direction of gravity, and each sub-through hole is provided with a filter.

[0010] According to some embodiments of the present application, the top plate, the left wall plate, the right wall plate and the bottom plate are respectively connected to the side walls.

[0011] According to some embodiments of the present application, fan holes are arranged on the top plate, and the number of the fan holes is the same as the number of fans, and the two correspond one to one.

[0012] According to some embodiments of the present application, the air duct further includes a column, one end of which is connected to the base plate, and the other end of which is connected to the deck.

[0013] According to some embodiments of the present application, a first reinforcement member is provided between the column and the bottom plate, and a second reinforcement member is provided between the column and the deck.

[0014] According to some embodiments of the present application, there are two fans, and the two fans are spaced apart along the extension direction of the air duct, and at least a portion of the column is located between the two fans.

[0015] In a second aspect, some embodiments of the present application provide an LNG bunkering ship, comprising a ship body and the ventilation device of the LNG bunkering ship described in the first aspect.

[0016] The beneficial effects of this application compared to the related prior art include:

[0017] By adopting a forward-extending air duct, a closed box structure is extended from the front wall of the cargo machinery room. On the one hand, the space of the cargo machinery room is expanded in disguise for the arrangement of fans and air ducts, avoiding the adverse effects on the arrangement of fans and air ducts caused by the cramped space and numerous equipment in the cargo machinery room. On the other hand, the fan can be arranged away from the dangerous area of ​​the cargo machinery room, thereby improving the safety of the LNG bunkering ship during liquid cargo operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of a ventilation device for an LNG bunkering ship in some embodiments of the present application;

[0020] Figure 2 A schematic diagram of the internal structure of a ventilation device of an LNG bunkering ship in some embodiments of the present application;

[0021] Figure 3 It is a left view of a ventilation device of an LNG bunkering ship in some embodiments of the present application;

[0022] Figure 4 A diagram of a ventilation device for an LNG bunkering ship in some embodiments of the present application;

[0023] Figure 5 A front view of a ventilation device of an LNG bunkering ship in some embodiments of the present application;

[0024] Figure 6 A rear view of a ventilation device of an LNG bunkering ship in some embodiments of the present application;

[0025] Figure 7 A top view of a ventilation device of an LNG bunkering ship in some embodiments of the present application;

[0026] Figure 8 This is a bottom view of a ventilation device for an LNG bunkering ship in some embodiments of the present application.

[0027] Icons: 1-cargo machinery room, 2-air duct, 20-fan hole, 21-top plate, 22-left wall panel, 23-right wall panel, 24-front wall panel, 25-bottom plate, 26-rear wall panel, 27-sub-through hole, 28-filter, 3-fan, 4-column, 41-first reinforcement, 42-second reinforcement, 5-deck. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the embodiments of the present application, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the application are conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In the description of the embodiments of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0034] See also Figure 1-Figure 8 , Figure 1 This is a schematic diagram of a ventilation device for an LNG bunkering ship in some embodiments of the present application. Figure 2 Schematic diagram of the internal structure of the ventilation device of the LNG bunkering ship in some embodiments of the present application, Figure 3 It is a left view of a ventilation device of an LNG bunkering ship in some embodiments of the present application; Figure 4 A diagram of a ventilation device for an LNG bunkering ship in some embodiments of the present application; Figure 5 A front view of a ventilation device of an LNG bunkering ship in some embodiments of the present application; Figure 6 A rear view of a ventilation device of an LNG bunkering ship in some embodiments of the present application; Figure 7This is a top view of a ventilation device of an LNG bunkering ship in some embodiments of the present application. Figure 8 This is a bottom view of a ventilation device for an LNG bunkering ship in some embodiments of the present application.

[0035] The present application provides a ventilation device for an LNG bunkering ship, comprising a cargo machinery room 1, an air duct 2 and a fan 3. The cargo machinery room 1 is arranged on a deck 5 of the ship. The air duct 2 is suspended on the side wall of the cargo machinery room 1 and is located outside the cargo machinery room 1. The internal space of the air duct 2 is interconnected with the internal space of the cargo machinery room 1, and the wall of the air duct 2 has a fan hole 20. The fan 3 is arranged in the air duct 2 for ventilating or exhausting air into the cargo machinery room 1.

[0036] In some embodiments of the present application, the ventilation device can be modified and installed on the basis of an existing LNG bunkering ship, wherein the air duct 2 can be a sheet metal structure, and a box structure is formed by welding a number of sheet metals, and the wall of the cargo machinery room 1 is opened to make the interior of the air duct 2 connected with the interior of the cargo machinery room 1, thereby facilitating the fan 3 in the air duct 2 to realize air circulation in the cargo machinery room 1.

[0037] In some embodiments, a plurality of air ducts 2 may be provided on different wall portions of the cargo machinery room 1 .

[0038] See also Figure 1 The air duct 2 is suspended on the outer wall of the cargo machinery room 1, and there is a distance between the air duct 2 and the deck 5 to meet the transportation of cargo and the movement of staff.

[0039] In some embodiments, the air duct 2 and the side wall of the cargo machinery room 1 can be fixed by bolts and welding.

[0040] In some embodiments, the wall of the air duct 2 can be disassembled to facilitate maintenance of the fan 3 inside the air duct 2 .

[0041] In the above scheme, the air duct 2 is suspended and extended from the wall of the cargo machinery room 1 so as not to occupy the internal space of the cargo machinery room 1, thereby avoiding the adverse effects on the layout of the fan 3 and the air duct 2 caused by the cramped space and numerous equipment in the cargo machinery room 1. At the same time, the external space can be effectively introduced to realize air circulation in the cargo machinery room 1.

[0042] According to some embodiments of the present application, the cargo machinery room 1 has a front wall, the front wall is provided with an inlet and outlet, and the air duct 2 is arranged on the top of the front wall and extends outward.

[0043] In some embodiments, there is sufficient space in front of the front wall of the cargo box mechanical room to facilitate the installation of the air duct 2.

[0044] According to some embodiments of the present application, the air duct 2 is a box structure, including a top plate 21, a left wall plate 22, a right wall plate 23, a front wall plate 24, and a bottom plate 25. The top plate 21 and the bottom plate 25 are opposite to each other, the left wall plate 22 and the right wall plate 23 are opposite to each other, the front wall plate 24 and the rear wall plate 26 are opposite to each other, the rear wall plate 26 is formed with a first through hole, the side wall of the cargo machinery room 1 is formed with a second through hole, the rear wall plate 26 is connected to the side wall, and the first through hole is connected to the second through hole.

[0045] According to some embodiments of the present application, the first through hole includes two independent sub-through holes 27 , the two sub-through holes 27 are arranged along the gravity direction, and each sub-through hole 27 is provided with a filter 28 .

[0046] In the above scheme, by providing a plurality of sub-through holes 27, the air intake or air outlet can be made uniform, reducing the impact of air pressure fluctuations on the cargo machinery room 1. At the same time, by providing a filter 28, external impurities can be filtered to ensure the safety of the cargo machinery room 1.

[0047] According to some embodiments of the present application, the top plate 21, the left wall plate 22, the right wall plate 23 and the bottom plate 25 are respectively connected to the side walls.

[0048] In some embodiments, by connecting the top plate 21, the left wall plate 22, the right wall plate 23 and the bottom plate 25 to the side walls respectively, the air duct 2 and the cargo machinery room 1 can have good connection quality, reducing the risk of the air duct 2 falling.

[0049] According to some embodiments of the present application, the fan holes 20 are arranged on the top plate 21, and the number of the fan holes 20 is the same as the number of the fans 3, and the two correspond one to one.

[0050] In the above solution, by arranging the fan hole 20 on the top plate 21 so that the air outlet is arranged upward, the influence of the airflow on the pedestrians and cargo on the deck 5 can be reduced.

[0051] According to some embodiments of the present application, the air duct 2 further includes a column 4 , one end of the column 4 is connected to the bottom plate 25 , and the other end of the column 4 is connected to the deck 5 .

[0052] According to some embodiments of the present application, a first reinforcement member 41 is provided between the column 4 and the bottom plate 25 , and a second reinforcement member 42 is provided between the column 4 and the deck 5 .

[0053] The column 4 is arranged between the air duct 2 and the deck 5 to play a certain supporting role. In some embodiments, the column 4 can be an aluminum alloy structure, one end of the column 4 is welded to the bottom plate 25, and the other end is welded to the deck 5. Alternatively, one end of the column 4 is connected to the bottom plate 25 by a screw, and the other end is connected to the deck 5 by a screw.

[0054] In some embodiments, one end of the first reinforcement 41 may be connected to the outer periphery of the column 4 , and the other end may be connected to the bottom plate 25 , and the first reinforcement 41 may be arranged at an angle.

[0055] In some embodiments, one end of the second reinforcement 42 may be connected to the outer periphery of the column 4 , and the other end may be connected to the deck 5 , and the second reinforcement 42 may be arranged at an angle.

[0056] According to some embodiments of the present application, there are two fans 3 , and the two fans 3 are spaced apart along the extension direction of the air duct 2 , and at least a portion of the column 4 is located between the two fans 3 .

[0057] Some embodiments of the present application provide an LNG bunkering ship, comprising a hull and the ventilation device of the LNG bunkering ship described above.

[0058] The beneficial effects of this application compared to the related prior art include:

[0059] By adopting a forward-extending air duct, a closed box structure is extended from the front wall of the cargo machinery room. On the one hand, the space of the cargo machinery room is expanded in disguise for the arrangement of fans and air ducts, avoiding the adverse effects on the arrangement of fans and air ducts caused by the cramped space and numerous equipment in the cargo machinery room. On the other hand, the fan can be arranged away from the dangerous area of ​​the cargo machinery room, thereby improving the safety of the LNG bunkering ship during liquid cargo operations.

[0060] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A ventilation device for an LNG bunkering ship, characterized in that: Cargo machinery room, located on the deck of the ship; an air duct suspended on a side wall of the cargo machinery room and located outside the cargo machinery room, wherein an inner space of the air duct is communicated with an inner space of the cargo machinery room, and a wall portion of the air duct has a fan hole; A fan is arranged in the air duct and is used for ventilating or extracting air into the cargo machinery room.

2. The ventilation device for LNG bunkering ship according to claim 1, characterized in that: The cargo machinery room has a front wall, the front wall is provided with an inlet and outlet, and the air duct is arranged on the top of the front wall and extends outward.

3. The ventilation device for LNG bunkering ship according to claim 1, characterized in that: The air duct is a box structure, including a top plate, a left wall plate, a right wall plate, a front wall plate, a bottom plate, and a rear wall plate. The top plate and the bottom plate are opposite to each other, the left wall plate and the right wall plate are opposite to each other, the front wall plate and the rear wall plate are opposite to each other, the rear wall plate is formed with a first through hole, the side wall of the cargo machinery room is formed with a second through hole, the rear wall plate is connected to the side wall, and the first through hole is connected to the second through hole.

4. The ventilation device for LNG bunkering ship according to claim 3, characterized in that: The first through hole includes two mutually independent sub-through holes, the two sub-through holes are arranged along the gravity direction, and each of the sub-through holes is provided with a filter.

5. The ventilation device for LNG bunkering ship according to claim 3, characterized in that: The top plate, the left wall plate, the right wall plate and the bottom plate are respectively connected to the side walls.

6. The ventilation device for LNG bunkering ship according to claim 3, characterized in that: The fan holes are arranged on the top plate, and the number of the fan holes is the same as the number of the fans, and the two correspond one to one.

7. The ventilation device for the LNG bunkering ship according to claim 3, characterized in that: The air duct also includes a column, one end of which is connected to the bottom plate, and the other end of which is connected to the deck.

8. The ventilation device for the LNG bunkering ship according to claim 7, characterized in that: A first reinforcement member is arranged between the column and the bottom plate, and a second reinforcement member is arranged between the column and the deck.

9. The ventilation device for LNG bunkering ship according to claim 7, characterized in that: The number of the fans is two. The two fans are arranged at intervals along the extension direction of the air duct, and at least a part of the column is located between the two fans.

10. An LNG bunkering ship, characterized in that: A ventilation device for an LNG bunkering ship comprising a ship body and the ventilation device according to any one of claims 1 to 9.

Images