CN215764601U

CN215764601U - LNG power ship

Info

Publication number: CN215764601U
Application number: CN202121630727.XU
Authority: CN
Inventors: 刘东进; 顾华; 孙国洪; 罗晓钟; 许志泉
Original assignee: China International Marine Containers Group Co Ltd; Zhangjiagang CIMC Sanctum Cryogenic Equipment Co Ltd; CIMC Enric Investment Holdings Shenzhen Co Ltd
Current assignee: China International Marine Containers Group Co Ltd; Zhangjiagang CIMC Sanctum Cryogenic Equipment Co Ltd; CIMC Enric Investment Holdings Shenzhen Co Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-02-08
Anticipated expiration: 2031-07-16

Abstract

The utility model provides an LNG power ship which comprises a ship body, a fuel bottle group and a liquid collecting piece. The fuel cylinder group comprises a frame and at least one gas cylinder arranged in the frame, and the gas cylinder is used for loading LNG; the liquid collecting piece is fixed on the ship body; the top of the liquid collecting piece is opened, an accommodating space is formed in the liquid collecting piece, and the liquid collecting piece is made of low-temperature-resistant materials; the liquid collecting part is detachably connected with the frame, the fuel bottle group is located in the containing space of the liquid collecting part, and the liquid collecting part can collect low-temperature liquid leaked from the fuel bottle group. Therefore, the LNG power ship can achieve the purpose of rapid filling in a mode of replacing the fuel bottle group, long-time filling is not needed, time is saved, and efficiency is improved.

Description

LNG power ship

Technical Field

The utility model relates to the field of ships, in particular to an LNG power ship.

Background

Liquefied Natural Gas (LNG) has become the first choice of green energy for future ships as an economical, green and safe novel energy source.

The LNG powered ship is a ship using LNG as an energy source, and in the LNG powered ship, LNG is generally stored in a fuel tank, and when the LNG in the fuel tank is used up, the LNG powered ship needs to be specially filled in a gas station, which results in a delay to some extent. Moreover, the number of LNG water filling pontoon used for building at present is limited and uneven, the fuel filling of the LNG power ship on the ocean mainly adopts a shore-based tank car wharf filling mode, the filling time is long, and the potential safety hazard is high, so that the large-scale application of the LNG power ship is severely restricted.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an LNG power ship with short filling time, and the LNG power ship is used for solving the problems in the prior art.

In order to solve the above technical problem, the present invention provides an LNG-powered ship, including:

a hull;

the fuel cylinder group comprises a frame and at least one gas cylinder arranged in the frame, and the gas cylinder is used for loading LNG; the frame is detachably connected with the ship body.

In one embodiment, the LNG-powered vessel further comprises a liquid trap secured to the hull; the top of the liquid collecting piece is opened, an accommodating space is formed in the liquid collecting piece, and the liquid collecting piece is made of low-temperature-resistant materials;

the liquid collecting part is detachably connected with the frame, and the fuel bottle group is positioned in the accommodating space of the liquid collecting part, so that the liquid collecting part can collect low-temperature liquid leaked from the fuel bottle group.

In one embodiment, the liquid collecting part comprises a bottom wall and a plurality of side walls which are erected on the bottom wall, the side walls are sequentially connected around the circumference of the bottom wall, the bottom wall is hermetically connected with the side walls, and two adjacent side walls are hermetically connected.

In one embodiment, the liquid collecting part is connected with the ship body through a supporting part;

the supporting piece is arranged on the ship body and is positioned at the bottom of the liquid collecting piece, so that a gap is formed between the bottom of the liquid collecting piece and the ship body.

In one embodiment, the support member comprises a plurality of legs standing on the ship body, and the plurality of legs are arranged at intervals along the circumferential direction of the liquid collecting member; the top of each supporting leg is fixedly connected with the bottom of the liquid collecting piece, and the bottom of each supporting leg is connected with the ship body.

In one embodiment, the support further comprises a heat insulating layer disposed corresponding to the leg;

the heat insulation layer is connected with the supporting leg, and the supporting leg is divided into a supporting leg upper part and a supporting leg lower part by taking the heat insulation layer as an interface.

In one embodiment, a support is fixed in the containing space of the liquid collecting piece, a connecting portion is arranged on the support, an installation portion is arranged at the bottom of the frame, and the connecting portion and the installation portion are detachably connected.

In one embodiment, the LNG-powered vessel has a gas supply system secured within the containment space; the gas supply system comprises a gas supply pipeline and a gas supply joint connected with the gas supply pipeline, the fuel cylinder group is provided with a connecting joint communicated with the inside of the gas cylinder, and the gas supply joint is detachably connected with the connecting joint.

In one embodiment, the air supply pipeline is made of a metal hose.

In one embodiment, an emergency shut-off device is provided on the air supply line.

In one embodiment, the axial direction of the gas cylinder extends along a first direction of the liquid collecting part, and the fuel cylinder group and the gas supply system are arranged at intervals along a second direction of the liquid collecting part.

According to the technical scheme, the utility model has the advantages and positive effects that:

the LNG-powered vessel of the present invention comprises a hull and a fuel bottle group. The frame is detachably connected with the hull, so that the LNG power ship can meet the filling requirement by replacing the fuel bottle group, long-time filling is not needed, the time is saved, and the efficiency is improved. And when the fuel cylinder group needs to be maintained, the fuel cylinder group can be lifted to the shore for operation, so that the operation of workers is facilitated.

Further, this LNG power boats and ships still include and collect liquid spare, and the fuel bottle group is located the accommodation space who collects liquid spare, and collects the material of liquid spare and be low temperature resistant material, and make and collect liquid spare and can collect the low temperature liquid that fuel bottle group leaked. Therefore, when the fuel bottle group leaks liquid due to accidents, the leaked liquid is collected in the liquid collecting piece, the damage of the leaked liquid to the ship body is avoided, and the safety of the ship body is ensured.

Drawings

Fig. 1 is a partial front view of one embodiment of an LNG-powered vessel of the present invention.

Fig. 2 is a partial top view of another embodiment of the LNG-powered vessel of the present invention.

Fig. 3 is a front view of yet another embodiment of the fuel bottle stack of the present invention.

The reference numerals are explained below: 1. an LNG powered vessel; 11. a deck; 12. a fuel bottle group; 121. a frame; 122. a gas cylinder; 123. connecting a joint; 13. a liquid collecting member; 131. a bottom wall; 132. a side wall; 14. a support; 15. a support member; 151. the upper parts of the supporting legs; 152. the lower part of the supporting leg; 153. a heat insulating layer; 16. an air supply system; 161. a gas supply joint; 162. a gas supply line; 163. an emergency shut-off device; 164. a heat exchanger; 165. and a buffer tank.

Detailed Description

Exemplary embodiments that embody features and advantages of the utility model are described in detail below in the specification. It is to be understood that the utility model is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the utility model and the description and drawings are to be regarded as illustrative in nature and not as restrictive.

For further explanation of the principles and construction of the present invention, reference will now be made in detail to the preferred embodiments of the present invention, which are illustrated in the accompanying drawings.

The utility model provides an LNG power ship. The LNG-powered ship may be a ship using only LNG as fuel, or a ship using LNG as a main fuel and diesel oil as an auxiliary fuel.

Referring to fig. 1, the LNG-powered vessel 1 includes a hull, a fuel bottle group 12, a liquid collecting member 13, a support member 15, and a gas supply system 16. The liquid collecting piece 13 is fixed on the ship body and detachably connected with the fuel bottle group 12, so that the fuel bottle group 12 can be separated from the ship body, the fuel bottle group 12 can be quickly replaced, and the filling time of the fuel bottle group 12 is saved. And the material of collection liquid spare 13 is low temperature resistant material, and it can collect the low-temperature liquid that fuel bottle group 12 leaked, has avoided the damage of low-temperature liquid to the hull, and then protects the safety of hull.

For convenience of description, the length direction of the ship body is defined as a longitudinal direction, and the width direction of the ship body is defined as a transverse direction.

In particular, the top of the hull has a deck 11 open to the weather. The deck 11 is spaced apart from the bottom of the hull and forms an inner space, which is divided as required to form a cargo tank, a cabin, a ballast tank, and the like. Wherein, a propelling engine for burning LNG is arranged in the engine room to provide power to realize the navigation of the whole ship.

The fuel cell stack 12 includes a frame 121 and at least one gas cell 122 located within the frame 121. Wherein the gas cylinder 122 is used for loading LNG.

In this embodiment, the gas cylinders 122 are axially parallel to the length direction of the frame 121 and each extend in the longitudinal direction of the hull. In other embodiments, the axial direction of the gas cylinder 122 and the length direction of the frame 121 can be parallel to the transverse direction of the ship body.

The frame 121 includes two end frames disposed in parallel at an interval and a side member connecting the two end frames. The end frame is square and specifically comprises two corner columns arranged in parallel at intervals, an upper end beam and a lower end beam which are connected with the corner columns, and corner pieces. The corner posts, the end upper beam and the end lower beam are connected through corner pieces to form a square structure, namely an end frame.

The corner fitting is of a rectangular square structure with a hollow interior, and a through hole is formed in the corner fitting. In this embodiment, the through hole is substantially elliptical.

The through-hole constitutes a mounting portion of the frame 121. In this embodiment, the four bottom corners of the frame 121 are provided with corner fittings, that is, the four corners of the frame 121 are provided with mounting portions.

The corner piece at the top of the frame 121 can be used for hoisting, so that the fuel bottle group 12 can be conveniently replaced integrally.

In this embodiment, the number of the gas cylinders 122 is one. In other embodiments, the number of the gas cylinders 122 may be two, as shown in fig. 2. Two gas cylinders 122 are arranged side by side in the frame 121 in a horizontal plane. In yet another exemplary embodiment, the number of the gas cylinders 122 may also be four, and as shown in fig. 3, the four gas cylinders 122 are arranged in a 2 × 2 array. That is, two air cylinders 122 are arranged side by side in the same horizontal plane, and the other two air cylinders 122 are stacked above the two air cylinders 122. The number of the gas cylinders 122 may be plural, and the specific number and the arrangement of the plural gas cylinders 122 may be set according to the specification.

The gas cylinder 122 is provided with a connector 123, and the connector 123 is communicated with the inside of the gas cylinder 122. The connection fitting 123 is configured to connect to the gas supply fitting 161 to deliver LNG to the gas supply system 16.

The support 15 stands on the deck 11. Specifically, the support 15 includes a plurality of legs and a plurality of heat insulating layers 153, wherein the heat insulating layers 153 are disposed in one-to-one correspondence with the legs.

The legs stand on deck 11. In this embodiment, the bottom of the leg is connected to the support 14 on the deck 11 by bolts and nuts.

A plurality of landing legs interval sets up. In this embodiment, a plurality of legs are provided at intervals in the longitudinal direction of the hull, and a plurality of legs are provided at the same intervals in the lateral direction of the hull.

The heat insulating layers 153 are disposed corresponding to the legs, that is, the number of the heat insulating layers 153 corresponds to the number of the legs. And a heat insulating layer 153 is provided to divide the leg into a leg upper portion 151 and a leg lower portion 152 with the heat insulating layer 153 as an interface. The bottom of leg lower portion 152 is connected to deck 11 and the brow of leg lower portion 152 is connected to insulation 153. The other side of the insulation 153 with respect to the lower leg portion 152 is connected to the bottom of the upper leg portion 151.

Specifically, in this embodiment, the heat insulating layer 153 is made of glass fiber reinforced plastic, the support leg is made of stainless steel, and the heat insulating layer 153 and the support leg are connected by adhesion.

Further, the length of the leg upper portion 151 in the vertical direction is greater than the length of the leg lower portion 152 in the vertical direction. I.e., insulation 153 closer to deck 11.

The liquid trap 13 is fixed to the top of the support member 15, i.e. the bottom of the liquid trap 13 is fixedly connected to the top of the plurality of legs, so that the bottom of the liquid trap 13 is spaced from the deck 11. When the liquid collecting piece 13 is connected with the supporting legs, the supporting legs are arranged at intervals along the circumferential direction of the liquid collecting piece 13.

The liquid trap 13 includes a bottom wall 131 and a plurality of side walls 132. The bottom of the bottom wall 131 is fixedly connected with the legs. The side wall 132 stands on the peripheral side of the bottom wall 131 and is sealingly connected to the bottom wall 131. The plurality of side walls 132 are sequentially arranged along the circumferential direction of the bottom wall 131, and the side walls 132 are hermetically connected with the side walls 132, and the side walls 132 are hermetically connected with the bottom wall 131.

The bottom wall 131 and the side wall 132 are made of low temperature resistant materials.

In this embodiment, the bottom wall 131 is square, and the number of the side walls 132 is four. In other embodiments, the bottom wall 131 may have a hexagonal shape, an octagonal shape, and other shapes.

The side walls 132 and the bottom wall 131 enclose to form a structure having an accommodating space therein and an opening at the top.

Further, the liquid collecting member 13 further includes a top wall, and an opening is opened on the top wall for the fuel bottle group 12 to pass through.

A seat 14 is provided in the accommodation space. The support 14 is fixedly connected to the bottom wall 131.

Specifically, the support 14 includes a bracket having an accommodating space, a lock head seat and a lock head. The size of the bracket is gradually increased from the top to the bottom. In this embodiment, the support is in the shape of a quadrangular frustum.

A part of the lock head seat is positioned in the accommodating space. The lock head is rotatably connected with the lock head seat and has an opening state and a closing state. The tapered end upwards surpasss the top of support, and the tapered end constitutes connecting portion.

Specifically, the locking head is substantially flat hemispherical, and when the locking head is in an open state, the locking head can be smoothly inserted into the corner piece through the through hole. The lock head is rotated, so that the lock head can not move out of the through hole, and the lock head is in a closed state at the moment.

The detachable connection between the frame 121 and the support 14 is realized through the detachable connection between the corner piece and the lock head, and further, the detachable connection between the fuel bottle group 12 and the liquid collecting piece 13 is realized. Therefore, the LNG-powered vessel 1 can meet the filling demand by replacing the fuel bottle group 12.

Meanwhile, when the fuel bottle group 12 on the hull breaks down and needs to be repaired or maintained, the fuel bottle group 12 can be removed from the hull, and a fuel bottle group 12 is hoisted to the hull again, so that the LNG-powered ship 1 can continue to sail. The fuel cell stack 12 requiring repair or maintenance is then repaired or maintained onshore.

In other embodiments, the frame 121 and the support 14 may be detachably connected by bolts and nuts. Illustratively, mounting holes are formed in the side beams, connecting holes are formed in the supports 14, and bolts are simultaneously inserted into the mounting holes and the connecting holes to realize detachable connection.

In this embodiment, when the fuel bottle group 12 is located in the accommodating space, the top of the fuel bottle group 12 extends upward beyond the top of the liquid trap 13, that is, the part of the fuel bottle group 12 is located in the accommodating space. By adopting the design mode, the height of the side wall 132 is reduced, so that the material used by the side wall 132 can be saved, and the cost is saved.

The air supply system 16 is disposed in the accommodating space of the liquid trap 13 and is fixedly connected to the liquid trap 13.

Specifically, the axial direction of the gas cylinder 122 of the fuel cylinder group 12 extends along the first direction of the liquid trap 13, and the gas supply system 16 and the fuel cylinder group 12 are arranged at a distance along the second direction of the liquid trap 13. In this embodiment, the first direction is a longitudinal direction of the hull, and the second direction is a transverse direction of the hull.

The air supply system 16 includes a heat exchanger 164, a surge tank 165, an air supply line 162, an emergency shut-off device 163, and an air supply connection 161. The gas supply joint 161, the gas supply line 162, the heat exchanger 164, and the buffer tank 165 are sequentially disposed along the flow sequence of LNG.

The gas supply connector 161 is used to connect with the connection connector 123 on the gas cylinder 122. The gas supply connector 161 and the connection connector 123 adopt mutually matched male and female connectors to realize quick connection between the gas cylinder 122 and the gas supply system 16. For example, the air supply connector 161 is a male connector and the connection connector 123 is a female connector.

Specifically, the air supply connector 161 and the connection connector 123 are self-sealing dry connection connectors 123, so that they can be automatically closed when disconnected, thereby preventing leakage. Namely, the gas cylinder 122 and the gas supply system 16 are connected through the quick connection between the gas supply connector 161 and the connection connector 123, and the gas supply connector 161 and the connection connector 123 are automatically closed when disconnected, so that leakage can be prevented.

The fuel bottle group 12 and the air supply system 16 on the ship body are quickly connected in a detachable mode through the air supply connector 161 and the connecting connector 123, time is saved, and efficiency is improved. And the operation is simple.

The air supply line 162 is disposed downstream of the air supply joint 161. In this embodiment, the air supply pipe 162 is made of a metal hose, which facilitates quick detachment between the air supply connector 161 and the connection connector 123 when the fuel bottle group 12 is replaced.

The emergency cut-off device 163 is disposed on the air supply pipeline 162 and is used for controlling the connection and disconnection between the air bottle 122 and the air supply system 16, so as to conveniently control the accident risk and improve the safety factor of the air supply system 16. In this embodiment, the emergency cut-off device 163 is an emergency cut-off valve.

A heat exchanger 164 is disposed downstream of the gas supply line 162 to heat the LNG to vaporize the LNG.

A surge tank 165 is provided downstream of the heat exchanger 164 to store the vaporized LNG. The buffer tank 165 is used to supply the vaporized LNG to the outside.

The gas supply system 16 is fixedly connected with the liquid collecting part 13, and the fuel bottle group 12 is detachably connected with the liquid collecting part 13, so that the gas supply system 16 is fixed when the fuel bottle group 12 is replaced, the fuel bottle group 12 is not required to be replaced, and the fuel bottle group 12 is convenient to replace. Meanwhile, each fuel bottle group 12 is not required to be provided with an air supply system 16, so that the arrangement of the air supply system 16 is reduced, and the cost is saved.

Since the air supply system 16 and the fuel bottle group 12 are both located in the accommodating space of the liquid trap 13, when liquid leaks accidentally from the air supply system 16 and the fuel bottle group 12, the leaked liquid is collected in the liquid trap 13. The material of collection liquid spare 13 is low temperature resistant material, and the connection between the diapire 131 of collection liquid spare 13 and the lateral wall 132 is sealing connection, and in making the liquid of leaking collected accommodation space, avoided the liquid of leaking to cause the damage to the hull, guarantees the safety of hull.

When the LNG powered ship 1 in this embodiment sails, the lock is closed, and the fuel cylinder group 12 is connected and fixed to the liquid collecting member 13.

When the gas cylinder 122 needs to be filled with LNG, the LNG powered vessel 1 moves to the gas station, the lock head rotates to the open state, the fuel cylinder group 12 is removed from the hull by lifting, and the LNG filled fuel cylinder group 12 is replaced on the hull, so that the lock head extends into the corner fitting, and the lock head rotates to the closed state. At this time, the LNG-powered vessel 1 may continue to sail.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. An LNG-powered vessel, comprising:

a hull;

the fuel cylinder group comprises a frame and at least one gas cylinder arranged in the frame, and the gas cylinder is used for loading LNG; the frame is detachably connected with the ship body;

the LNG power ship further comprises a liquid collecting piece fixed on the ship body; the top of the liquid collecting piece is opened, an accommodating space is formed in the liquid collecting piece, and the liquid collecting piece is made of low-temperature-resistant materials;

2. The LNG-powered ship of claim 1, wherein the liquid collecting member includes a bottom wall and a plurality of side walls standing on the bottom wall, the side walls are sequentially connected around the circumference of the bottom wall, the bottom wall and the side walls are hermetically connected, and two adjacent side walls are hermetically connected.

3. LNG-powered vessel according to claim 1, characterized in that the connection between the liquid collector and the hull is realized by means of a support;

4. The LNG-powered vessel of claim 3, wherein the support member comprises a plurality of legs standing on the hull, and the plurality of legs are arranged at intervals in a circumferential direction of the liquid trap; the top of each supporting leg is fixedly connected with the bottom of the liquid collecting piece, and the bottom of each supporting leg is connected with the ship body.

5. The LNG-powered vessel of claim 4, wherein the support further comprises an insulating layer disposed in correspondence with the leg;

6. The LNG powered vessel of claim 1, wherein a support is fixed in the receiving space of the liquid collecting member, the support is provided with a connecting portion, the bottom of the frame is provided with an installation portion, and the connecting portion is detachably connected with the installation portion.

7. The LNG-powered vessel of claim 1, wherein a gas supply system of the LNG-powered vessel is secured in the receiving space; the gas supply system comprises a gas supply pipeline and a gas supply joint connected with the gas supply pipeline, the fuel cylinder group is provided with a connecting joint communicated with the inside of the gas cylinder, and the gas supply joint is detachably connected with the connecting joint.

8. The LNG-powered vessel of claim 7, wherein the gas supply line is made of metal hose.

9. The LNG-powered vessel according to claim 7, characterized in that the gas supply line is provided with an emergency shut-off device.

10. The LNG-powered vessel of claim 7, wherein the axial direction of the gas cylinders extends in a first direction of the liquid collection member, and the group of fuel cylinders is spaced from the gas supply system in a second direction of the liquid collection member.