Marine LNG (Liquefied Natural Gas) fuel supply device

Abstract

The utility model discloses a marine LNG (Liquefied Natural Gas) fuel supply device, which relates to the technical field of fuel gas power and comprises a base, four mounting holes which are communicated up and down are formed in the upper surface of the base in a rectangular array, two supporting seats are fixedly connected to the left and right sides of the upper surface of the base, and a tank body is arranged above the outer surfaces of the two supporting seats. The internal space of the tank body is reduced through the arrangement of the first circular partition plate and the second circular partition plate, liquefied natural gas is blocked, the rolling strength of the liquefied natural gas is relieved, and heat in the tank body can be conveniently guided out through the arrangement of the transverse plate and the vertical plate; the problem that the liquefied natural gas in the tank body is driven to roll in the tank body due to the fact that the ship body shakes when the ship travels on the sea in windy weather is solved, and the effects that the rolling strength of the liquefied natural gas is reduced, the tank body is protected to a certain degree, and meanwhile potential safety hazards after the liquefied natural gas rolls are reduced are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas power, in particular to a marine LNG fuel gas supply device. Background Art

[0002] With the rapid development of the national economy, the appearance of cities has changed dramatically, but the environment has also been seriously polluted, especially the water pollution in the Yangtze River Basin and the Yellow River Basin has become more serious. In addition, the rising oil prices have also prompted us to find more environmentally friendly and economical clean energy as a substitute for petrochemical products. Since natural gas is lighter than air, leaked natural gas is easy to diffuse in the air without gathering. Therefore, the safety performance of using natural gas fuel is better; moreover, compared with traditional fuel-powered ships, liquefied natural gas (LNG) fuel-powered ships have significantly reduced carbon monoxide and methane emissions, and there is no lead emission and particulate matter emission, which has less environmental pollution. Therefore, using natural gas instead of petroleum products as the power fuel of ships is a more feasible option.

[0003] According to patent publication number CN212029146U, a marine LNG fuel gas supply device is disclosed, including a liquid storage tank, wherein the upper side of the liquid storage tank is provided with a liquid inlet, two fixing ears are fixedly provided on both sides of the liquid storage tank, and four columns are fixedly provided on the lower side of the liquid storage tank. Support blocks are provided at both ends and the middle of the liquid storage tank, and the upper surface shape of the support block is the same as that of the outer side of the liquid storage tank. The fixing ears are fixed above the support block in the middle by bolts, and a top block is provided on the lower side of the column. A spring is provided on the outer side of the top block and the column, and the spring is located in the support block in the middle. The utility model reduces the docking time at the dock by hoisting and replacement, and at the same time, each buffer layer and spring play a buffering role. The fixing process of the liquid storage tank is simple and the stability is good. By arranging the gas storage tank and the heating tank, the safety of the liquid storage tank is effectively protected when a large-scale leakage occurs, and the security is high. The following problems exist in the prior art:

[0004] In the current ship LNG fuel gas supply device, when the ship is sailing at sea, the hull shakes due to strong winds, causing the liquefied natural gas in the tank to roll inside the tank, resulting in a major hidden danger of the rolling natural gas, and thus no device is provided to block the tumbling liquefied natural gas; at the same time, since the current ship LNG fuel gas supply device is not convenient to install in connection with the gas pipeline, the installation is more troublesome. Utility Model Content

[0005] The utility model provides a marine LNG fuel gas supply device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A marine LNG fuel gas supply device comprises a base, wherein a rectangular array of four mounting holes communicating with each other from top to bottom is formed on the upper surface of the base, two support seats are fixedly connected to the left and right sides of the upper surface of the base, a tank body is arranged above the outer surfaces of the two support seats, an air inlet seat is fixedly connected through the upper surface of the tank body, a pipeline is fixedly connected through the middle of the left end of the tank body, a valve is arranged on the outer surface of the pipeline, a connecting assembly is arranged on the end of the outer surface of the pipeline away from the tank body, and a gas delivery pipe is arranged inside the connecting assembly.

[0008] Two circular partitions 1 are fixedly connected to the left and right sides of the inner wall of the tank body, and a circular opening 1 communicating with the left and right is opened in the middle of the left side of the two circular partitions 1, and four square grooves communicating with the left and right are opened in a circular array on the left side of the two circular partitions 1. A circular partition 2 is fixedly connected to the middle of the inner wall of the circular partition 1, and a circular opening 2 communicating with the left and right is opened in the middle of the left side of the circular partition 2, and a plurality of through holes communicating with the left and right are opened in a circular array on the left side of the circular partition 2.

[0009] A further improvement of the technical solution of the utility model is that a horizontal plate is fixedly connected below the opposite surfaces of the two circular partitions one, the outer surface of the horizontal plate penetrates and is fixedly connected to the inside of the circular partition two, and two vertical plates are fixedly connected to the left and right sides of the upper surface of the horizontal plate, and the outer surfaces of the two vertical plates penetrate the outside of the tank body and are fixedly connected.

[0010] A further improvement of the technical solution of the utility model is that the material of the horizontal plate and the two vertical plates is copper.

[0011] A further improvement of the technical solution of the utility model is that two arc-shaped grooves are provided on the left and right sides below the outer surface of the tank body, and arc-shaped surfaces are provided above the outer surfaces of the two support seats, and a plurality of rubber blocks are fixedly connected to the surfaces of the two arc-shaped surfaces.

[0012] A further improvement of the technical solution of the utility model is that the interiors of the two arc-shaped grooves are fixedly connected to the upper surfaces of a plurality of rubber blocks.

[0013] A further improvement of the technical solution of the utility model is that the connecting assembly includes a column, a connecting port is opened at the right end of the column, a movable port is opened on the rear side of the connecting port, a connecting head is movably connected inside the column, and the inside of the connecting head is fixedly connected to the outer surface of the gas pipe through it.

[0014] A further improvement of the technical solution of the utility model is that: a limiting ring is fixedly connected inside the column, the inside of the connecting port is threadedly connected to the outer surface of the pipe, a sealing ring is arranged inside the connecting head, and the right side of the sealing ring is overlapped and tightened with the end face of the pipe.

[0015] A further improvement of the technical solution of the utility model is that: an annular groove is opened in the middle of the outer surface of the connecting head, the interior of the annular groove overlaps with the inner side of the limiting ring, and a sealing opening is opened on the right side of the connecting head, and the interior of the sealing opening overlaps and presses tightly with the left side of the sealing ring.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a marine LNG fuel gas supply device, which adopts the mutual cooperation of a circular partition plate 1, a square groove, a circular mouth 1, a circular partition plate 2, a through hole, a circular mouth 2, a horizontal plate, and a vertical plate. The internal space of the tank body is reduced by setting the circular partition plate 1 and the circular partition plate 2, and the liquefied natural gas is blocked to slow down the tumbling force of the liquefied natural gas. The setting of the horizontal plate and the vertical plate facilitates the heat extraction in the tank body, solves the problem that the liquefied natural gas in the tank body rolls inside the tank body due to the shaking of the hull caused by strong winds when the ship is sailing at sea, and achieves the effect of reducing the tumbling force of the liquefied natural gas, providing a certain protection for the tank body, and reducing the safety hazards after the tumbling of the liquefied natural gas.

[0018] 2. The utility model provides a ship-borne LNG fuel gas supply device, which adopts the mutual cooperation of a column, a connecting port, a movable port, a connecting head, an annular groove, a sealing port, a limit ring, and a sealing ring. The setting of the connecting port facilitates the installation and connection of the pipeline, the setting of the sealing ring facilitates the sealing during installation, and the setting of the connecting head facilitates the connection with the gas pipe, thereby solving the problem of inconvenient installation of the connection with the gas pipe in the current ship-borne LNG fuel gas supply device, and achieving the effect of easy installation and simple and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the tank body of the utility model;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the tank body and the support base of the utility model;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the connection components and pipelines of the utility model;

[0023] Figure 5 This is a schematic diagram of the connector structure of the utility model.

[0024] In the figure: 1. base; 2. support seat; 21. rubber block; 3. tank body; 31. circular partition one; 32. square groove; 33. circular mouth one; 34. circular partition two; 35. through hole; 36. circular mouth two; 37. horizontal plate; 38. vertical plate; 301. arc groove; 4. air inlet seat; 5. pipeline; 6. valve; 7. connecting component; 71. column; 72. connecting port; 73. movable port; 74. connecting head; 741. annular groove; 742. sealing port; 75. limiting ring; 76. sealing ring; 8. air supply pipe. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 As shown, the utility model provides a marine LNG fuel gas supply device, including a base 1, a rectangular array of four mounting holes communicating with each other from top to bottom is opened on the upper surface of the base 1, two support seats 2 are fixedly connected to the left and right sides of the upper surface of the base 1, a tank body 3 is arranged above the outer surfaces of the two support seats 2, an air inlet seat 4 is fixedly connected to the upper surface of the tank body 3, a pipeline 5 is fixedly connected to the middle of the left end of the tank body 3, a valve 6 is arranged on the outer surface of the pipeline 5, a connecting assembly 7 is arranged at the end of the outer surface of the pipeline 5 away from the tank body 3, and a gas delivery pipe 8 is arranged inside the connecting assembly 7;

[0027] The setting of the air inlet seat 4 facilitates the entry of liquefied natural gas into the tank body 3, the setting of the valve 6 facilitates the control of the liquefied natural gas, the setting of the mounting holes in the base 1 facilitates the installation and fixation of the hull, and the setting of the connecting component 7 facilitates the connection and installation of the gas pipe 8 and the pipeline 5.

[0028] like Figure 2As shown, two circular partitions 31 are fixedly connected to the left and right sides of the inner wall of the tank body 3, and a circular opening 33 communicating with the left and right is opened in the middle of the left side of the two circular partitions 31, and four square grooves 32 communicating with the left and right are opened in a circular array on the left side of the two circular partitions 31, and a circular partition 2 34 is fixedly connected to the middle of the inner wall of the circular partition 1 31, and a circular opening 2 36 communicating with the left and right is opened in the middle of the left side of the circular partition 2 34, and a plurality of through holes 35 communicating with the left and right are opened in a circular array on the left side of the circular partition 2 34, and a horizontal plate 37 is fixedly connected to the lower opposite surfaces of the two circular partitions 1 31, and the outer surface of the horizontal plate 37 is fixedly connected to the inside of the circular partition 2 34, and two vertical plates 38 are fixedly connected to the left and right sides of the upper surface of the horizontal plate 37, and the outer surfaces of the two vertical plates 38 pass through the outside of the tank body 3 and are fixedly connected, and the material of the horizontal plate 37 and the two vertical plates 38 is copper;

[0029] When the ship is sailing at sea and encounters the influence of wind and waves, the hull shakes and drives the liquefied natural gas inside the tank body 3 to roll. The circular baffle 1 31 and the circular baffle 2 34 block the rolled liquefied natural gas, reducing the force of the tumbling of the liquefied natural gas. The circular opening 1 33, the square groove 32, the circular opening 2 36 and the through hole 35 are arranged to facilitate the flow of the rolled liquefied natural gas to a certain extent. The horizontal plate 37 and the vertical plate 38 are arranged to facilitate the temperature transfer in the tank body 3, effectively preventing the temperature inside the tank body 3 from rising.

[0030] like Figure 3 As shown, two arc-shaped grooves 301 are provided on the left and right sides of the lower outer surface of the tank body 3, and arc-shaped surfaces are provided above the outer surfaces of the two support seats 2. A plurality of rubber blocks 21 are fixedly connected to the surfaces of the two arc-shaped surfaces, and the interiors of the two arc-shaped grooves 301 are fixedly connected to the upper surfaces of the plurality of rubber blocks 21;

[0031] The arrangement of the arc groove 301 , the arc surface and the rubber block 21 facilitates the fixing of the tank body 3 , and at the same time has a certain degree of buffering effect to improve the stability of the tank body 3 .

[0032] like Figure 4 - Figure 5As shown, the connection assembly 7 includes a column 71, a connection port 72 is provided at the right end of the column 71, a movable port 73 is provided at the rear side of the connection port 72, a connector 74 is movably connected inside the column 71, the interior of the connector 74 is fixedly connected to the outer surface of the gas pipe 8, a limiting ring 75 is fixedly connected inside the column 71, the interior of the connection port 72 is threadedly connected to the outer surface of the pipe 5, a sealing ring 76 is provided inside the connector 74, the right side of the sealing ring 76 is overlapped and pressed against the end surface of the pipe 5, an annular groove 741 is provided in the middle of the outer surface of the connector 74, the interior of the annular groove 741 is overlapped with the inner side of the limiting ring 75, a sealing port 742 is provided on the right side of the connector 74, and the interior of the sealing port 742 is overlapped and pressed against the left side of the sealing ring 76;

[0033] When it is needed, the valve 6 is closed to make the connection port 72 in the column 71 contact with the outer surface of the pipe 5, so that the column 71 is rotated and threadedly connected and fixed. When it is rotated to the appropriate position, the pipe 5 squeezes the sealing ring 76 so that the sealing ring 76 fits tightly inside the sealing port 742, thereby achieving a sealing effect. At the same time, when the column 71 rotates, due to the setting of the annular groove 741, it is easy to move on the inner side of the limit ring 75, thereby facilitating installation and fixing.

[0034] The following is a detailed description of the working principle of the ship's LNG fuel gas supply device.

[0035] Through the action of circular baffle 1 31, circular baffle 2 34, circular mouth 1 33, square groove 32, circular mouth 2 36 and through hole 35, the tumbling liquefied natural gas is blocked, the force of tumbling of liquefied natural gas is reduced, and at the same time, it has a certain fluidity. The setting of horizontal plate 37 and vertical plate 38 facilitates the temperature in tank body 3 to be transferred to the outside. When it is necessary to install and fix the gas transmission pipe 8, the cylinder 71 is rotated and threadedly connected with the pipeline 5, and then the sealing ring 76 is squeezed to achieve the sealing effect.

[0036] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A marine LNG fuel gas supply device, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with four mounting holes in a rectangular array which are connected to each other from top to bottom. Two support seats (2) are fixedly connected to the left and right sides of the upper surface of the base (1). A tank body (3) is arranged above the outer surfaces of the two support seats (2). An air inlet seat (4) is fixedly connected to the upper surface of the tank body (3). A pipe (5) is fixedly connected to the middle of the left end of the tank body (3). A valve (6) is arranged on the outer surface of the pipe (5). A connecting assembly (7) is arranged at one end of the outer surface of the pipe (5) which is away from the tank body (3). An air delivery pipe (8) is arranged inside the connecting assembly (7). Two circular partition plates (31) are fixedly connected to the left and right sides of the inner wall of the tank body (3); a circular opening (33) communicating with the left and right is opened in the middle of the left side of the two circular partition plates (31); four square grooves (32) communicating with the left and right are opened in a circular array on the left side of the two circular partition plates (31); a circular partition plate (34) is fixedly connected to the middle of the inner wall of the circular partition plate (31); a circular opening (36) communicating with the left and right is opened in the middle of the left side of the circular partition plate (34); and a plurality of through holes (35) communicating with the left and right are opened in a circular array on the left side of the circular partition plate (34).

2. A marine LNG fuel gas supply device according to claim 1, characterized in that: A horizontal plate (37) is fixedly connected below the opposite surfaces of the two circular partition plates (31); the outer surface of the horizontal plate (37) penetrates and is fixedly connected to the inside of the circular partition plate (34); two vertical plates (38) are fixedly connected to the left and right sides of the upper surface of the horizontal plate (37); the outer surfaces of the two vertical plates (38) penetrate the outside of the tank body (3) and are fixedly connected.

3. A marine LNG fuel gas supply device according to claim 2, characterized in that: The material of the horizontal plate (37) and the two vertical plates (38) is copper.

4. The LNG fuel gas supply device for ships according to claim 1, characterized in that: Two arc-shaped grooves (301) are provided on the left and right sides of the lower outer surface of the tank body (3), and arc-shaped surfaces are provided above the outer surfaces of the two support seats (2), and a plurality of rubber blocks (21) are fixedly connected to the surfaces of the two arc-shaped surfaces.

5. A marine LNG fuel gas supply device according to claim 4, characterized in that: The interiors of the two arc-shaped grooves (301) are fixedly connected to the upper surfaces of a plurality of rubber blocks (21).

6. The marine LNG fuel gas supply device according to claim 1, characterized in that: The connecting assembly (7) comprises a column (71), a connecting port (72) is provided at the right end of the column (71), a movable port (73) is provided at the rear side of the connecting port (72), a connecting head (74) is movably connected inside the column (71), and the inside of the connecting head (74) is penetrated and fixedly connected to the outer surface of the gas delivery pipe (8).

7. A marine LNG fuel gas supply device according to claim 6, characterized in that: The interior of the column (71) is fixedly connected to a limit ring (75), the interior of the connection port (72) is threadedly connected to the outer surface of the pipe (5), and the interior of the connector (74) is provided with a sealing ring (76), and the right side of the sealing ring (76) is overlapped and tightly pressed against the end surface of the pipe (5).

8. The marine LNG fuel gas supply device according to claim 6, characterized in that: An annular groove (741) is provided in the middle of the outer surface of the connector (74), the interior of the annular groove (741) overlaps with the inner side of the limiting ring (75), and a sealing opening (742) is provided on the right side of the connector (74), the interior of the sealing opening (742) overlaps and tightens with the left side of the sealing ring (76).

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