CN214890508U - LNG power ship - Google Patents

Abstract

The utility model provides a LNG power boats and ships, it includes: a deck; a fuel supply unit including a frame, a tank body, and a cold box; the frame can be lifted and can be detachably arranged on the deck, and the bottom of the frame and the top of the deck have a height difference; the frame is internally provided with an accommodating space, the tank body and the cold box are fixed in the accommodating space, the tank body is used for loading LNG, and the tank body is communicated with the cold box; and one end of the conveying pipe is detachably connected with the cold box, and the other end of the conveying pipe is connected with an internal combustion engine of the LNG power ship, so that LNG in the tank body can be conveyed to the internal combustion engine. After the internal LNG of jar used up, with the junction of cold box and conveyer pipe dismantlement open, then carry away whole fuel supply unit to on the fuel supply unit lifting that a re-handling is full of LNG arrives the deck, and with the cold box and the duct connection of this fuel supply unit, the utility model discloses can solve LNG power ship and need drive toward the problem of gas station gas filling waste time of journey specially.

Description

LNG power ship

Technical Field

The utility model relates to a boats and ships field, in particular to LNG power boats and ships.

Background

To reduce pollution, some ships have begun to use LNG (Liquefied Natural Gas) instead of conventional energy, and thus LNG-fueled LNG-powered ships have emerged.

The LNG fuel of the existing LNG power ship is usually stored in a fuel tank, and after the LNG fuel in the tank body is used up, the LNG power ship needs to be specially opened to a gas station for gas filling, so that the time is delayed to a certain extent. In addition, because the number of gas filling stations is small due to strict approval required for building the gas filling stations, the problem of queuing gas filling may also occur when the LNG power ship fills gas in the gas filling stations, so that the LNG power ship is difficult to fill gas and delays gas filling time.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an among the prior art LNG power ship of solution adds the LNG fuel and hinders the problem of time.

In order to solve the technical problem, the utility model adopts the following technical scheme:

according to an aspect of the utility model, the utility model provides a LNG power boats and ships, include: a deck; a fuel supply unit including a frame, a tank body, and a cold box; the frame can be lifted and can be detachably installed on the deck, and the bottom of the frame and the top of the deck have a height difference; the frame is internally provided with an accommodating space, the tank body and the cold box are fixed in the accommodating space, the tank body is used for loading LNG, and the tank body is communicated with the cold box; and one end of the conveying pipe is detachably connected with the cold box, and the other end of the conveying pipe is connected with an internal combustion engine of the LNG powered ship, so that LNG in the tank body can be conveyed to the internal combustion engine.

In some embodiments, the cold box comprises a box and an output pipe; the tank body is communicated with the tank body, the output pipe is provided with an input end and an output end, the input end is positioned in the frame and communicated with the tank body, and the output end extends outwards and extends out of the frame; the conveying pipe comprises an inner pipe and an outer pipe coated on the periphery of the inner pipe; a space is arranged between the outer pipe and the inner pipe to form an interlayer; the LNG power ship further comprises a first connecting piece positioned outside the frame, and the first connecting piece comprises a first connecting part and a second connecting part which are detachably connected; the first connecting portion with the output end fixed connection of output tube, the second connecting portion with inner tube fixed connection realizes output tube with the dismantlement of inner tube is connected.

In some embodiments, the first connecting portion and the second connecting portion are both provided with a plurality of first connecting holes along the axial direction of the output pipe; the first connecting piece further comprises a plurality of first bolts, and the first bolts are respectively arranged in the first connecting holes in the first connecting portion and the first connecting holes in the second connecting portion in a penetrating mode so as to be connected with the first connecting portion and the second connecting portion.

In some embodiments, the LNG-powered vessel further comprises a cold box ventilation system located outside the frame; the cold box ventilation system is fixedly arranged on the deck; the cold box further comprises a ventilation pipe, the ventilation pipe is provided with an inlet end and an outlet end, and the inlet end is positioned in the frame and connected with the box body; the outlet end extends outwards and extends out of the frame; the LNG power ship further comprises a second connecting piece positioned outside the frame, and the second connecting piece comprises a third connecting part and a fourth connecting part which are detachably connected; the third connecting part is fixedly connected with the outlet end of the ventilating pipe; the fourth connecting portion is fixedly connected with the cold box ventilation system, and the ventilation pipe is detachably connected with the cold box ventilation system.

In some embodiments, the third connecting portion and the fourth connecting portion are both provided with a plurality of second connecting holes along the axial direction of the inner tube; the second connecting piece further comprises a plurality of second bolts, and the second bolts are respectively arranged in the second connecting holes in the third connecting portion and the fourth connecting portion in a penetrating mode to connect the third connecting portion with the fourth connecting portion.

In some embodiments, the upper surface of the frame is circumferentially provided with a plurality of lifting holes at intervals.

In some embodiments, the LNG-powered vessel further comprises a support fixedly mounted on an upper surface of the deck and extending upwardly beyond the deck; the upper surface of the support is sealed and the frame is mounted on the support.

In some embodiments, the lower surface of the frame is provided with a plurality of limiting holes at intervals along the circumferential direction;

the LNG power ship further comprises a plurality of limiting pieces, and the limiting pieces are correspondingly arranged on the upper surface of the supporting piece; each limiting piece extends along the vertical direction and is matched with the limiting hole; when the frame is installed on the supporting piece, the limiting piece can extend into the limiting hole.

In some embodiments, the fuel supply unit further comprises a saddle fixedly arranged in the frame, and the surface of the saddle facing the tank body is arc-shaped and is matched with the tank body; the saddle is positioned below the tank body and bears the tank body.

In some embodiments, the delivery tube comprises an inner tube and an outer tube wrapped around the outer circumference of the inner tube; a space is arranged between the outer pipe and the inner pipe to form an interlayer; the LNG power ship further comprises an output pipe ventilation system which is fixedly arranged on the deck and connected with the interlayer so as to discharge the leaked LNG in the interlayer outwards.

According to the above technical scheme, the utility model discloses following advantage and positive effect have at least:

the utility model discloses in, jar body and cold box are all installed in the frame, adopt between cold box and the conveyer pipe to dismantle and be connected. Therefore, after the LNG in the tank body is used up, the joint of the cold box and the conveying pipe is detached, so that the cold box and the conveying pipe are disconnected. Then the whole fuel supply unit is hoisted away, a fuel supply unit filled with LNG is hoisted and transported to a deck, and a cold box of the fuel supply unit is connected with a delivery pipe, so that the fuel supply unit can provide fuel for an internal combustion engine, and the problem that the LNG power ship needs to drive to a gas station specially to fill gas and waste time can be solved. When the ship body is far away from the gas station or the gas station in the area where the ship body is located is less, the time can be greatly saved.

Drawings

Fig. 1 is a schematic structural view of an LNG-powered ship according to an embodiment of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a partial schematic view of fig. 1, wherein the fuel supply unit is mainly shown.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a schematic structural diagram of a fuel supply unit of an LNG-powered ship according to an embodiment of the present invention.

Fig. 6 is a front view of a fuel supply unit of an LNG-powered ship according to an embodiment of the present invention.

Fig. 7 is a side view of a fuel supply unit of an LNG-powered ship according to an embodiment of the present invention.

The reference numerals are explained below:

100. an LNG powered vessel; 1. a deck; 2. building the upper layer; 3. a cabin; 4. a fuel supply unit; 41. a frame; 411. lifting holes; 42. a tank body; 43. a cold box; 431. a box body; 432. an output pipe; 433. a vent pipe; 44. a saddle; 5. a delivery pipe; 51. an inner tube; 52. an outer tube; 6. a support member; 7. a limiting member; 8. a cold box ventilation system; 9. a duct ventilation system; 10. a first connecting member; 11. a second connecting member.

Detailed Description

Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

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 a LNG power ship, this LNG power ship include only with the boats and ships of LNG as fuel and with LNG as main fuel to diesel oil is as auxiliary fuel's boats and ships.

Referring to fig. 1 to 7, an LNG-powered vessel 100 includes a deck 1, an superstructure 2, a hold 3, an internal combustion engine (not shown), a fuel supply unit 4, a duct 5, a support 6, a limiting member 7, a cold box ventilation system 8, and a duct ventilation system 9.

For convenience of description, the longitudinal direction of the LNG-powered vessel 100 will be referred to as the longitudinal direction, the width direction of the LNG-powered vessel 100 will be referred to as the lateral direction, and the LNG-powered vessel 100 will be referred to as the hull.

Referring to fig. 1 to 3, a deck 1 is used to cover an internal space of a ship such that a cabin 3 is formed below the deck 1. The cabin 3 is usually divided into engine rooms, the internal combustion engine is usually mounted in the engine rooms, and the specific structure of the deck 1 and the internal combustion engine can be referred to the related art and will not be described in detail herein.

The superstructure 2 is also called "ship building" and is provided for the life of passengers and crew. The superstructure 2 is located at the aft end of the deck 1, i.e. at the stern. The side of the superstructure 2 facing the head end of the deck 1 is closed, i.e. the side is not provided with openings, in order to meet the requirements for openings in hazardous areas.

Referring to fig. 3 to 7, the fuel supply unit 4 is used for supplying LNG to the internal combustion engine. The fuel supply unit 4 includes a frame 41, a tank 42, a cold box 43, and a saddle 44.

The frame 41 is a rectangular parallelepiped and is disposed in the lateral direction of the hull. The frame 41 is detachably mounted on the deck 1, and there is a height difference between the bottom of the frame 41 and the top of the deck 1, and the specific value of the height difference can be specifically set according to actual conditions. The frame 41 has an accommodating space inside. A plurality of lifting holes 411 are circumferentially arranged on the upper surface of the frame 41 at intervals, and when lifting, an external crane lifts the frame 41 through the lifting holes 411, so as to realize the lifting of the frame 41.

In this embodiment, the frame 41 is a rectangular frame structure, so that it is light in weight and convenient to lift.

In other embodiments, the frame 41 may also be of a box 431 type construction, i.e., closed on all sides.

Referring to fig. 6 and 7, the supporting member 6 is rectangular and has a sealed upper surface to meet the safety requirement. The dimensions of the upper surface of the support 6 are substantially equal to the dimensions of the lower surface of the frame 41. The support 6 extends vertically upwards beyond the surface of the deck 1, and the frame 41 is mounted on the upper surface of the support 6 to provide a height difference between the frame 41 and the deck 1.

In other embodiments, the support 6 may also be square or other irregular shape, and the support 6 may also be a sealed box, i.e. sealed on all its surfaces.

The stopper 7 is mounted on the upper surface of the support 6. The stop 7 is substantially conical and extends in the vertical direction upwards beyond the support 6. The limiting members 7 are provided in plurality, and the limiting members 7 are arranged at intervals along the circumferential direction of the supporting member 6. In the present embodiment, four limiting members 7 are provided, and are distributed at four corners of the upper surface of the supporting member 6.

Correspondingly, the bottom of the frame 41 is provided with a plurality of limiting holes (not shown) for matching with the limiting members 7. When the frame 41 is mounted on the supporting member 6, each limiting member 7 can extend into the limiting hole to detachably fix the frame 41, so that the frame 41 is prevented from shaking on the supporting member 6. In the lifting, the frame 41 can be separated from the support 6 by lifting the frame 41 vertically upward.

Still referring to fig. 4 to 7, the tank 42 is substantially cylindrical, and LNG is loaded therein. The tank 42 is arranged in the frame 41 in the transverse direction of the hull, i.e. the axis of the tank 42 is parallel to the transverse direction of the hull.

Because there is a height difference between the bottom of the frame 41 and the top of the deck 1, when the tank 42 is placed in the frame 41, the bottom of the tank 42 has a height difference with the top of the deck 1, and when the LNG in the tank 42 leaks, the leaked LNG contacts the support 6 first, so that the leaked LNG is prevented from directly contacting the deck 1, and the damage to the deck 1 is reduced or even eliminated.

Saddle 44 is a frame structure that is fixedly mounted within frame 41 and below canister 42. The saddle 44 is curved toward the surface of the tank 42 and is adapted to the outer contour of the tank 42. The canister 42 is mounted on a saddle 44 for secure mounting.

In the present embodiment, two saddles 44 are provided, and the two saddles 44 are provided at intervals in the axial direction of the can 42 to stably support the can 42.

The cold box 43 is capable of liquefying and purifying LNG. The cold box 43 is fixedly mounted within the frame 41. The cold box 43 is aligned with the tank 42 in the transverse direction of the hull.

The cold box 43 includes a box body 431, an output pipe 432, and a ventilation pipe 433.

Tank 431 communicates with tank 42 so that LNG in tank 42 can flow into tank 431. A cavity is formed in the tank body 431, and a pipeline for LNG to flow is formed in the cavity.

Output tube 432 has an input and an output. The input end is located within the frame 41 and communicates with the cold box 43 such that LNG within the cold box 43 can flow into the output pipe 432. The output end extends outwardly and out of the frame 41.

The vent tube 433 has an inlet end and an outlet end. The inlet end is located within the frame 41 and communicates with the cavity within the cold box 43. When a leak occurs in the piping in the cavity of the cold box 43, the leaked LNG enters the cavity and can enter the vent pipe 433 communicating with the cavity. The outlet end extends outwardly and beyond the frame 41.

The cold box ventilation system 8 is located at the end of the frame 41 that is longitudinally remote from the superstructure 2 along the hull. The cold box ventilation system 8 may discharge the LNG leaked from the pipes to the cavity within the body 431 of the cold box 43 and discharge the leaked LNG to the outside at the same time. The specific structure of the cold box ventilation system 8 can be referred to the related art and will not be described in detail herein.

The delivery tube 5 is located outside the frame 41. The duct 5 has one end located on the deck 1 and the other end penetrating the deck 1 and extending down into the cabin.

The delivery pipe 5 includes an inner pipe 51 and an outer pipe 52.

The inner pipe 51 is used for transporting LNG. The inner pipe 51 is located at one end in the nacelle and at one end on the deck 1.

The inner tube 51 is connected to the internal combustion engine at the end located inside the engine compartment. The outer tube 52 surrounds the inner tube 51 and forms an interlayer with the inner tube 51. When the LNG in the inner pipe 51 leaks, the leaked LNG enters the interlayer.

The duct ventilation system 9 is located at the end of the frame 41 that is longitudinally remote from the superstructure 2 along the hull. The duct ventilation system 9 is connected to the sandwich of the duct 5 to outwardly discharge LNG leaked from the inner pipe 51 of the duct 5 into the sandwich. The specific structure of duct ventilation system 9 is described in detail with reference to the related art.

Referring to fig. 5, the connecting member includes a first connecting member 10 and a second connecting member 11.

In the present embodiment, the first connecting member 10 is a flange. The first connecting member 10 is located outside the frame 41. The first connecting member 10 includes a first connecting portion (not shown), a second connecting portion (not shown), and a first bolt (not shown).

The first connecting portion is fixedly connected to the output end of the output pipe 432. A plurality of first connecting holes are opened along the circumference of the output tube 432 by the first connecting portion, and the plurality of first connecting holes are arranged at intervals.

The second connection portion is fixedly connected to one end of the inner pipe 51 on the deck 1. The second connecting portion has a plurality of first connecting holes along the circumference of the output tube 432. The first connection holes located on the second connection portion are the same in number as the first connection holes located on the first connection portion, and the corresponding first connection holes are coaxial, so that the circumferential interval of the first connection member 10 is provided with a plurality of pairs of first connection holes.

The first bolt is provided with a plurality of, and the same with the quantity of first connecting hole. Each first bolt is respectively inserted into each pair of first connecting holes to realize the detachable connection of the first connecting part and the second connecting part, so that the detachable connection of the fuel supply unit 4 and the delivery pipe 5 can be realized. The first and second connecting portions of the first connecting member 10 are detached when the fuel supply unit 4 needs to be replaced.

In the present embodiment, the second connecting member 11 is a flange. The second connecting member 11 is located outside the frame 41 and above the first connecting member 10. The second connecting member 11 includes a third connecting portion (not shown), a fourth connecting portion (not shown), and a second bolt (not shown).

The third connecting part is fixedly connected with the outlet end of the ventilation pipe 433. The third connecting portion has been seted up a plurality of second connecting holes along the circumference of ventilation pipe 433, and a plurality of second connecting holes interval sets up.

The fourth connection is fixedly connected with the cold box ventilation system 8. The fourth connecting portion has been seted up a plurality of second connecting holes along the circumference of ventilation pipe 433, and a plurality of second connecting holes interval sets up. The number of the second connecting holes on the third connecting portion is the same as that of the second connecting holes on the fourth connecting portion, and the corresponding second connecting holes are coaxial, so that a plurality of pairs of second connecting holes are arranged at intervals in the circumferential direction of the second connecting member 11.

The second bolts are provided with a plurality of second connecting holes, and the number of the second bolts is the same as that of the second connecting holes. The second bolts are respectively inserted into each pair of the second connecting holes to realize the detachable connection of the third connecting part and the fourth connecting part, so that the detachable connection of the fuel supply unit 4 and the cold box ventilation system 8 can be realized. When the fuel supply unit 4 needs to be replaced, the third connection portion and the fourth connection portion of the second connection member 11 are detached.

Based on the above description, the LNG-powered vessel 100 of the present application, when in use: since the tank 42 of the fuel supply unit 4 is detachably connected to the inner pipe 51 of the transportation pipe 5 through the transportation pipe 432, and the cold box 43 of the fuel supply unit 4 is detachably connected to the cold box ventilation system 8 through the ventilation pipe 433, when the LNG stored in the tank 42 of the fuel supply unit 4 is used up, the first connection member 10 between the fuel supply unit 4 and the inner pipe 51 of the transportation pipe 432 and the second connection member 11 between the fuel supply unit 4 and the cold box ventilation system 8 are disconnected, the frame 41 is lifted off the deck 1 using an external device such as a crane or a crane, and the frame 41 is lifted to a predetermined position on the deck 1, and one fuel supply unit 4 in which the tank 42 is filled with LNG is lifted again, and the first connection member 10 and the second connection member 11 are mounted and screwed again, so that the gas supply to the internal combustion engine can be realized. The LNG carried by the ship body can be prevented from being required to be specially driven to the gas station for filling gas after being used, and certain time can be saved. Meanwhile, when the ship body is far away from the gas station or the gas station in the area where the ship body is located is less, the time can be greatly saved.

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 (10)

1. An LNG-powered vessel, comprising:

a deck;

a fuel supply unit including a frame, a tank body, and a cold box; the frame can be lifted and can be detachably installed on the deck, and the bottom of the frame and the top of the deck have a height difference; the frame is internally provided with an accommodating space, the tank body and the cold box are fixed in the accommodating space, the tank body is used for loading LNG, and the tank body is communicated with the cold box;

and one end of the conveying pipe is detachably connected with the cold box, and the other end of the conveying pipe is connected with an internal combustion engine of the LNG powered ship, so that LNG in the tank body can be conveyed to the internal combustion engine.

2. The LNG-powered vessel of claim 1, wherein the cold box comprises a tank body and an export pipe; the tank body is communicated with the tank body, the output pipe is provided with an input end and an output end, the input end is positioned in the frame and communicated with the tank body, and the output end extends outwards and extends out of the frame;

the conveying pipe comprises an inner pipe and an outer pipe coated on the periphery of the inner pipe; a space is arranged between the outer pipe and the inner pipe to form an interlayer;

the LNG power ship further comprises a first connecting piece positioned outside the frame, and the first connecting piece comprises a first connecting part and a second connecting part which are detachably connected; the first connecting portion with the output end fixed connection of output tube, the second connecting portion with inner tube fixed connection realizes output tube with the dismantlement of inner tube is connected.

3. The LNG-powered vessel of claim 2, wherein the first connection portion and the second connection portion each have a plurality of first connection holes along an axial direction of the output pipe;

the first connecting piece further comprises a plurality of first bolts, and the first bolts are respectively arranged in the first connecting holes in the first connecting portion and the first connecting holes in the second connecting portion in a penetrating mode so as to be connected with the first connecting portion and the second connecting portion.

4. The LNG-powered vessel of claim 2, further comprising a cold box ventilation system located outside the frame; the cold box ventilation system is fixedly arranged on the deck;

the cold box further comprises a ventilation pipe, the ventilation pipe is provided with an inlet end and an outlet end, and the inlet end is positioned in the frame and connected with the box body; the outlet end extends outwards and extends out of the frame;

the LNG power ship further comprises a second connecting piece positioned outside the frame, and the second connecting piece comprises a third connecting part and a fourth connecting part which are detachably connected; the third connecting part is fixedly connected with the outlet end of the ventilating pipe; the fourth connecting portion is fixedly connected with the cold box ventilation system, and the ventilation pipe is detachably connected with the cold box ventilation system.

5. The LNG powered vessel of claim 4, wherein the third connecting portion and the fourth connecting portion are each opened with a plurality of second connecting holes along an axial direction of the inner pipe;

the second connecting piece further comprises a plurality of second bolts, and the second bolts are respectively arranged in the second connecting holes in the third connecting portion and the fourth connecting portion in a penetrating mode to connect the third connecting portion with the fourth connecting portion.

6. The LNG-powered vessel of claim 1, wherein the upper surface of the frame is provided with a plurality of lifting holes at circumferentially spaced intervals.

7. The LNG-powered vessel of claim 1, further comprising a support fixedly mounted on an upper surface of the deck and extending upwardly beyond the deck; the upper surface of the support is sealed and the frame is mounted on the support.

8. The LNG-powered vessel of claim 7, wherein the lower surface of the frame is provided with a plurality of limiting holes at intervals in a circumferential direction;

the LNG power ship further comprises a plurality of limiting pieces, and the limiting pieces are correspondingly arranged on the upper surface of the supporting piece; each limiting piece extends along the vertical direction and is matched with the limiting hole;

when the frame is installed on the supporting piece, the limiting piece can extend into the limiting hole.

9. LNG-powered vessel according to claim 1, characterized in that the fuel supply unit further comprises a saddle fixedly arranged in the frame, the saddle being curved towards the tank and adapted to the tank; the saddle is positioned below the tank body and bears the tank body.

10. The LNG-powered vessel of claim 1, wherein the transfer pipe comprises an inner pipe and an outer pipe that wraps around an outer periphery of the inner pipe; a space is arranged between the outer pipe and the inner pipe to form an interlayer;

the LNG power ship further comprises an output pipe ventilation system which is fixedly arranged on the deck and connected with the interlayer so as to discharge the leaked LNG in the interlayer outwards.

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