Natural gas incineration device for ship

Abstract

The utility model relates to the technical field of power equipment, and discloses a marine natural gas incineration device which comprises a gasification box, a gas outlet pipe is fixedly sleeved with the top end of the gasification box, a gas conveying pipe is fixedly installed at the top end of the gas outlet pipe, and a heat insulation sleeve is fixedly sleeved with the bottom end of the outer surface of the gas outlet pipe. According to the natural gas incineration device for the ship, when a driving motor operates, a rotating shaft drives a screw to rotate, the screw is in threaded sleeving connection with a moving block, the screw drives a baffle to move through the moving block, the baffle moves leftwards under limiting of a limiting block, and in the process, the blocking amount of the baffle to the liquid inlet end of a heat conduction pipe is increased; the amount of high-temperature liquid entering the heat conduction pipe is reduced, so that the heat conduction efficiency of the heat conduction pipe is reduced, the gasification efficiency of the liquefied natural gas is reduced, the effect of adjusting the gasification efficiency of the liquefied natural gas according to use requirements is achieved, and due to the design of the heat insulation sleeve, the influence of the environment temperature on the liquefied natural gas can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and more specifically, to a marine natural gas combustion device. Background Technology

[0002] Due to its numerous advantages, including good environmental performance, high safety, and economic efficiency, liquefied natural gas (LNG) is becoming increasingly popular, and many ships now choose to use LNG as fuel for propulsion. However, when using LNG, ships must first vaporize it before it can be fed into the combustion unit. Existing LNG combustion units often cannot adjust the vaporization efficiency, resulting in a constant vaporization rate. This can lead to insufficient power when ships require high efficiency, negatively impacting their power performance and operational efficiency. Conversely, when high efficiency is not needed, it can cause increased internal pressure in the combustion unit, leading to natural gas leaks. Therefore, improvements are needed. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a marine natural gas combustion device, which has the advantage of adjusting the gasification efficiency of liquefied natural gas according to the usage requirements.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a marine natural gas combustion device, comprising:

[0005] A vaporization box, wherein an outlet pipe is fixedly sleeved inside the top of the vaporization box, a gas delivery pipe is fixedly installed at the top of the outlet pipe, and a heat insulation sleeve is fixedly sleeved at the bottom of the outer surface of the outlet pipe.

[0006] A vaporization mechanism is provided at the bottom of the insulation sleeve;

[0007] The gasification mechanism includes an insulated box, the top of which is fixedly connected to the bottom of an insulating sleeve. A fixed box is fixedly installed inside the insulated box, and a heating wire is fixedly sleeved on the outer surface of the fixed box. A first water tank and a second water tank are fixedly installed inside the fixed box, connected by a water pump. Heat-conducting pipes are fixedly sleeved inside the tops of the first and second water tanks, and their outer surfaces are fixedly sleeved with the inner surfaces of the fixed box, insulating sleeve, and gasification box. A limiting block is fixedly installed at the top of the second water tank, and a baffle is slidably connected inside the limiting block. The top of the baffle is abutted against the top of the second water tank. A moving block is fixedly installed at the bottom of the baffle, and a screw is threaded into the moving block. A drive motor is fixedly installed on the outer surface of the insulated box, and a rotating shaft is fixedly sleeved at the other end of the drive motor's output shaft. The left end of the rotating shaft is fixedly sleeved with the right end of the screw.

[0008] As a preferred embodiment of this utility model, a connecting pipe is fixedly sleeved inside the outer surface of the vaporization box, the outer surface of the connecting pipe is fixedly sleeved inside the outer surface of the insulation sleeve, a valve is fixedly sleeved on the outer surface of the connecting pipe, and a storage box is fixedly sleeved on the outer surface of the other end of the connecting pipe.

[0009] As a preferred embodiment of this utility model, an inlet pipe is fixedly sleeved inside the top of the storage box, and a base is fixedly sleeved on the outer surface of the storage box.

[0010] As a preferred embodiment of this utility model, a sleeve is fixedly fitted inside the air outlet pipe, a limiting groove is formed at the top of the sleeve, a movable block is slidably connected inside the limiting groove, an arc-shaped plate is fixedly installed at the top of the movable block, a first hinge block is fixedly installed at the bottom of the arc-shaped plate, a moving rod is hinged inside the first hinge block, a second hinge block is hinged at the other end of the moving rod, and a vertical rod is fixedly installed on the outer surface of the second hinge block.

[0011] As a preferred embodiment of this utility model, a fixing block is fixedly installed on the outer surface of the vertical rod, a limiting rod is slidably connected inside the fixing block, and the other end of the limiting rod is fixedly connected to the inside of the air outlet pipe.

[0012] As a preferred embodiment of this utility model, a first protective shell is fixedly sleeved inside the outer surface of the air outlet pipe, a power motor is fixedly installed inside the first protective shell, a rotating shaft is fixedly sleeved at the other end of the output shaft of the power motor, and a first bevel gear is fixedly sleeved at the other end of the rotating shaft.

[0013] As a preferred embodiment of this utility model, the outer surface of the first bevel gear is meshed with a second bevel gear, the inner surface of the second bevel gear is fixedly sleeved with a vertical shaft, the outer surface of the vertical shaft is threadedly sleeved with the inner surface of the vertical rod, the top end of the outer surface of the vertical shaft is movably sleeved with a second protective shell, and the outer surface of the second protective shell is fixedly connected to the inner surface of the air outlet pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. In this marine natural gas combustion device, when the drive motor is running, the shaft will drive the screw to rotate. Since the screw is threadedly connected to the moving block, the screw will drive the baffle to move through the moving block. At this time, the baffle will move to the left under the limit of the limiting block. During this process, the baffle will increase the amount of obstruction on the liquid inlet end of the heat conduction pipe, thereby reducing the amount of high-temperature liquid entering the heat conduction pipe, thus reducing the heat conduction efficiency of the heat conduction pipe and reducing the gasification efficiency of liquefied natural gas. This achieves the effect of adjusting the gasification efficiency of liquefied natural gas according to the usage requirements. Due to the design of the insulation jacket, the influence of ambient temperature on liquefied natural gas can be reduced.

[0016] 2. The ship's natural gas combustion device, due to the design of the first and second protective shells, can protect the power motor, the first bevel gear, and the second bevel gear. Since the first and second bevel gears mesh, when the power motor is running, the rotating shaft will drive the second bevel gear and the vertical shaft to rotate through the first bevel gear. Since the vertical shaft is threadedly connected to the vertical rod, the vertical shaft will drive the vertical rod to move. Due to the limiting rod limiting the fixed block, the vertical rod will simultaneously drive the fixed block and the second hinge block to move downward. At this time, the second hinge block will pull the first hinge block through the moving rod, so that the first hinge block drives the movable block to move through the arc plate. Due to the limiting groove limiting the movable block, the three arc plates will move inward. During this process, the arc plates will increase the amount of obstruction on the sleeve, thereby enabling fine adjustment of the natural gas intake. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a cross-sectional structural schematic diagram of the vaporization box of this utility model;

[0020] Figure 4 This is a cross-sectional view of the drive motor of this utility model;

[0021] Figure 5 for Figure 3A magnified schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. Vaporization box; 2. Gas outlet pipe; 3. Insulation sleeve; 4. Insulation box; 5. Fixing box; 6. Heating wire; 7. First water tank; 8. Second water tank; 9. Water pump; 10. Heat conduction pipe; 11. Limiting block; 12. Baffle; 13. Moving block; 14. Screw; 15. Drive motor; 16. Rotating shaft; 17. Connecting pipe; 18. Valve; 19. Storage tank; 20. Liquid inlet pipe; 21. Base; 22. Gas pipe; 23. Sleeve; 24. Limiting groove; 25. Movable block; 26. Arc plate; 27. First hinge block; 28. Moving rod; 29. ​​Second hinge block; 30. Vertical rod; 31. First protective shell; 32. Power motor; 33. Rotating shaft; 34. First bevel gear; 35. Second bevel gear; 36. Vertical shaft; 37. Second protective shell; 38. Fixed block; 39. Limiting rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 5 As shown, this utility model provides a marine natural gas combustion device, comprising:

[0025] A vaporization box 1 has an outlet pipe 2 fixedly connected to the inside of the top of the vaporization box 1. A gas delivery pipe 22 is fixedly installed at the top of the outlet pipe 2. A heat insulation sleeve 3 is fixedly connected to the bottom of the outer surface of the outlet pipe 2.

[0026] The vaporization mechanism is located at the bottom of the insulation sleeve 3;

[0027] The vaporization mechanism includes an insulated box 4, the top of which is fixedly connected to the bottom of an insulation sleeve 3. A fixed box 5 is fixedly installed inside the insulated box 4, and a heating wire 6 is fixedly sleeved on the outer surface of the fixed box 5. A first water tank 7 and a second water tank 8 are fixedly installed inside the fixed box 5, and are connected to each other via a water pump 9. Heat-conducting pipes 10 are fixedly sleeved inside the tops of the first and second water tanks 7 and 8, and their outer surfaces are respectively connected to the fixed box 5, the insulation sleeve 3, and the vaporization box 1. The outer surface is internally fixedly sleeved, and a limiting block 11 is fixedly installed at the top of the second water tank 8. A baffle 12 is slidably connected inside the limiting block 11. The top of the baffle 12 fits against the top of the second water tank 8. A moving block 13 is fixedly installed at the bottom of the baffle 12. A screw 14 is threadedly sleeved inside the moving block 13. A drive motor 15 is fixedly installed on the outer surface of the insulation box 4. A rotating shaft 16 is fixedly sleeved at the other end of the output shaft of the drive motor 15. The left end of the rotating shaft 16 is internally fixedly sleeved with the right end of the screw 14.

[0028] When the heating wire 6 is running, it can heat the liquid inside the first water tank 7 and the second water tank 8 through the fixed box 5. Due to the design of the insulation box 4, the heating wire 6 can be well insulated. When the water pump 9 is running, the high-temperature liquid inside the first water tank 7 will flow into the second water tank 8, and at the same time, the high-temperature liquid inside the second water tank 8 will flow into the heat pipe 10. When the high-temperature liquid flows into the heat pipe 10, it will cause the liquefied natural gas inside the vaporization box 1 to boil, thereby achieving the function of vaporizing liquefied natural gas. Due to the design of the insulation jacket 3, the influence of the external temperature on the vaporization efficiency of liquefied natural gas can be mitigated. When the drive motor 15 is running, the rotating shaft 16 will drive the screw 14 to rotate. Since the screw 14 is threadedly connected to the moving block 13, the screw 14 will drive the baffle 12 to move through the moving block 13. Due to the limitation of the limiting block 11, the baffle 12 will move to the left along the inside of the limiting block 11. At this time, the top of the baffle 12 will block the liquid inlet of the heat pipe 10 during the leftward movement, thereby reducing the amount of high-temperature liquid entering the heat pipe 10, thereby reducing the heat conduction efficiency of the heat pipe 10, and reducing the gasification efficiency of liquefied natural gas. Thus, the gasification efficiency of liquefied natural gas can be adjusted according to the usage requirements.

[0029] Among them, a connecting pipe 17 is fixedly sleeved inside the outer surface of the vaporization box 1, the outer surface of the connecting pipe 17 is fixedly sleeved inside the outer surface of the insulation sleeve 3, a valve 18 is fixedly sleeved on the outer surface of the connecting pipe 17, and a storage box 19 is fixedly sleeved on the outer surface of the other end of the connecting pipe 17.

[0030] Due to the design of the connecting pipe 17, the liquefied natural gas inside the storage tank 19 can enter the gasification tank 1 through the connecting pipe 17. Due to the design of the valve 18, it is easy for the operator to open or close the connecting pipe 17.

[0031] The storage tank 19 has an inlet pipe 20 fixedly sleeved inside the top, and a base 21 fixedly sleeved on the outer surface of the storage tank 19.

[0032] The design of the inlet pipe 20 allows liquefied natural gas to enter the storage tank 19, while the design of the base 21 provides good support for the storage tank 19 as a whole.

[0033] The air outlet pipe 2 is internally fixedly fitted with a sleeve 23. A limiting groove 24 is opened at the top of the sleeve 23. A movable block 25 is slidably connected inside the limiting groove 24. An arc plate 26 is fixedly installed at the top of the movable block 25. A first hinge block 27 is fixedly installed at the bottom of the arc plate 26. A moving rod 28 is hinged inside the first hinge block 27. A second hinge block 29 is hinged at the other end of the moving rod 28. A vertical rod 30 is fixedly installed on the outer surface of the second hinge block 29.

[0034] Due to the design of the limiting groove 24, the movable block 25 will be limited. When the vertical rod 30 moves downward, it will drive the second hinge block 29 to move downward. At this time, the second hinge block 29 will drive the first hinge block 27 to move through the moving rod 28. At this time, the first hinge block 27 will drive the movable block 25 to move through the arc plate 26. Due to the limitation of the limiting groove 24, the three arc plates 26 will drive the three movable blocks 25 to move inward. During this process, the three arc plates 26 will increase the amount of obstruction on the sleeve 23, thereby enabling fine adjustment of the natural gas intake.

[0035] Among them, a fixing block 38 is fixedly installed on the outer surface of the vertical rod 30, and a limiting rod 39 is slidably connected inside the fixing block 38. The other end of the limiting rod 39 is fixedly connected to the inside of the air outlet pipe 2.

[0036] When the vertical rod 30 moves, it will drive the fixed block 38 to move. Since the inside of the fixed block 38 is slidably connected to the outer surface of the limiting rod 39, the limiting rod 39 will limit the movement of the fixed block 38, so that the vertical rod 30 can only drive the fixed block 38 to move up and down.

[0037] The outer surface of the air outlet pipe 2 is fitted with a first protective shell 31, and a power motor 32 is fixedly installed inside the first protective shell 31. The other end of the output shaft of the power motor 32 is fitted with a rotating shaft 33, and the other end of the rotating shaft 33 is fitted with a first bevel gear 34.

[0038] When the power motor 32 moves, the rotating shaft 33 will drive the first bevel gear 34 to rotate. Due to the design of the first protective shell 31, it can provide good protection for the power motor 32.

[0039] The outer surface of the first bevel gear 34 is meshed with the second bevel gear 35, the inner surface of the second bevel gear 35 is fixedly sleeved with the vertical shaft 36, the outer surface of the vertical shaft 36 is threadedly sleeved with the inner surface of the vertical rod 30, the top of the outer surface of the vertical shaft 36 is movably sleeved with the second protective shell 37, and the outer surface of the second protective shell 37 is fixedly connected with the inner surface of the air outlet pipe 2.

[0040] Since the first bevel gear 34 and the second bevel gear 35 are meshed, when the first bevel gear 34 rotates, it will drive the second bevel gear 35 to rotate. At this time, the second bevel gear 35 will drive the vertical shaft 36 to rotate around the sleeve joint with the second protective shell 37. Due to the design of the second protective shell 37, it can play a good protective role for the first bevel gear 34 and the second bevel gear 35. Since the outer surface of the vertical shaft 36 is sleeved with the internal thread of the vertical rod 30, when the vertical shaft 36 rotates, it will drive the vertical rod 30 to move up and down.

[0041] Working principle and usage process of this utility model:

[0042] When liquefied natural gas (LNG) enters the storage tank 19 through the inlet pipe 20, the operator opens the valve 18. The LNG then flows into the vaporization tank 1 via the connecting pipe 17. The operator then activates the heating wire 6, which simultaneously heats the liquids in the first water tank 7 and the second water tank 8. The operator then activates the water pump 9, causing the high-temperature liquid in the first water tank 7 to flow into the second water tank 8. The high-temperature liquid in the second water tank 8 then enters the heat pipe 10. Because LNG has a very low boiling point, the high-temperature liquid flowing through the heat pipe 10 causes the LNG in the vaporization tank 1 to boil, thus vaporizing the LNG. The insulation jacket 3 effectively isolates the vaporization tank 1 from external temperatures, reducing the impact of ambient temperature on the vaporization efficiency of the LNG.

[0043] When the operator needs to adjust the liquefied natural gas (LNG) vaporization efficiency, the operator starts the drive motor 15. The rotating shaft 16 then drives the screw 14 to rotate. Since the outer surface of the screw 14 is threadedly connected to the inner thread of the moving block 13, the rotation of the screw 14 will drive the moving block 13 to move. At this time, the baffle 12 will move along the inside of the two limiting blocks 11 under the drive of the moving block 13. Due to the design of the two limiting blocks 11, the movement of the baffle 12 will be limited, allowing it to move only left and right. At this time, the baffle 12 will move to the left along the inside of the limiting blocks 11 under the drive of the moving block 13. During this leftward movement, the top of the baffle 12 will block the liquid inlet of the heat pipe 10, thereby reducing the instantaneous flow of high-temperature liquid into the heat pipe 10, which in turn reduces the heat conduction efficiency inside the heat pipe 10, thus reducing the LNG vaporization efficiency inside the vaporization box 1. This achieves the function of adjusting the LNG vaporization efficiency according to usage requirements.

[0044] When the operator needs to fine-tune the natural gas intake, they start the power motor 32. The rotating shaft 33 then drives the first bevel gear 34 to rotate. Since the outer surface of the first bevel gear 34 meshes with the outer surface of the second bevel gear 35, the first bevel gear 34 drives the vertical shaft 36 to rotate around the point where it engages with the second protective shell 37. The design of the first and second protective shells 31 and 37 provides good protection for the power motor 32, the first bevel gear 34, and the second bevel gear 35. Because the outer surface of the vertical shaft 36 is threaded into the internal part of the vertical rod 30, its rotation drives the vertical rod 30. The vertical rod 30 then drives the fixed block 38 to move along the outer surface of the limiting rod 39. The design of the limiting rod 39 controls the movement of the fixed block 38. The limit switch restricts the movement of the rod to vertical. At this time, the fixed block 38 will move downward along the outer surface of the limit rod 39 under the drive of the first protective shell 31. At the same time, the vertical rod 30 will drive the three moving rods 28 through the three sets of second hinge blocks 29. The other end of the three moving rods 28 will drive the three arc plates 26 through the pull of the three sets of first hinge blocks 27. At this time, the three arc plates 26 will drive the three movable blocks 25 to move along the inside of the three limit grooves 24. Due to the design of the three limit grooves 24, the movement of the three movable blocks 25 will be limited. At this time, the three arc plates 26 will drive the three movable blocks 25 to move inward along the inside of the three limit grooves 24. During this process, the three arc plates 26 will increase the amount of obstruction to the inside of the sleeve 23 during the inward movement, thereby realizing the function of fine adjustment of the natural gas intake.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Marine natural gas incineration device, characterized by, Include: The gasification tank (1), the inner surface of the top end of the gasification tank (1) is fixedly sleeved with the gas outlet pipe (2), the top end of the gas outlet pipe (2) is fixedly installed with the gas conveying pipe (22), the bottom end of the outer surface of the gas outlet pipe (2) is fixedly sleeved with the temperature insulation sleeve (3); The gasification mechanism is arranged at the bottom end of the temperature insulation sleeve (3); Wherein, the gasification mechanism includes a heat preservation box (4), the top end of the heat preservation box (4) is fixedly connected with the bottom end of the temperature insulation sleeve (3), the inner surface of the heat preservation box (4) is fixedly installed with the fixed box (5), the outer surface of the fixed box (5) is fixedly sleeved with the heating wire (6), the inner surface of the fixed box (5) is fixedly installed with the first water tank (7) and the second water tank (8), the first water tank (7) and the second water tank (8) are communicated through the water pump (9), the inner surface of the top end of the first water tank (7) and the second water tank (8) is fixedly sleeved with the heat conducting pipe (10), the outer surface of the heat conducting pipe (10) is fixedly sleeved with the inner surface of the fixed box (5), the temperature insulation sleeve (3) and the gasification tank (1), the top end of the inner surface of the second water tank (8) is fixedly installed with the limiting block (11), the inner surface of the limiting block (11) is slidably connected with the baffle (12), the top end of the baffle (12) is matched with the top end of the inner surface of the second water tank (8), the bottom end of the baffle (12) is fixedly installed with the moving block (13), the inner surface of the moving block (13) is threadedly sleeved with the screw rod (14), the outer surface of the heat preservation box (4) is fixedly installed with the driving motor (15), the other end of the output shaft of the driving motor (15) is fixedly sleeved with the rotating shaft (16), the left end of the rotating shaft (16) is fixedly sleeved with the inner surface of the right end of the screw rod (14).

2. Marine natural gas incineration apparatus according to claim 1, characterized in that: The inner surface of the outer surface of the gasification tank (1) is fixedly sleeved with the connecting pipe (17), the outer surface of the connecting pipe (17) is fixedly sleeved with the inner surface of the outer surface of the temperature insulation sleeve (3), the outer surface of the connecting pipe (17) is fixedly sleeved with the valve (18), the outer surface of the other end of the connecting pipe (17) is fixedly sleeved with the storage tank (19).

3. Marine natural gas incineration apparatus according to claim 2, characterized in that: The inner surface of the top end of the storage tank (19) is fixedly sleeved with the liquid inlet pipe (20), the outer surface of the storage tank (19) is fixedly sleeved with the base (21).

4. Marine natural gas incineration apparatus according to claim 1, characterized in that: The inner surface of the gas outlet pipe (2) is fixedly sleeved with the sleeve pipe (23), the top end of the sleeve pipe (23) is provided with the limiting groove (24), the inner surface of the limiting groove (24) is slidably connected with the movable block (25), the top end of the movable block (25) is fixedly installed with the arc plate (26), the bottom end of the arc plate (26) is fixedly installed with the first hinged block (27), the inner surface of the first hinged block (27) is hingedly connected with the moving rod (28), the other end of the moving rod (28) is hingedly connected with the second hinged block (29), the outer surface of the second hinged block (29) is fixedly installed with the vertical rod (30).

5. Marine natural gas incineration apparatus according to claim 4, characterized in that: The outer surface of the vertical rod (30) is fixedly provided with a fixed block (38), the inner portion of the fixed block (38) is slidably connected with a limiting rod (39), and the other end of the limiting rod (39) is fixedly connected with the inner portion of the air outlet pipe (2).

6. Marine natural gas incineration apparatus according to claim 1, characterized in that: The outer surface of the air outlet pipe (2) is internally fixedly sleeved with a first protective shell (31), the inner portion of the first protective shell (31) is fixedly provided with a power motor (32), the output shaft of the power motor (32) is fixedly sleeved with a rotating shaft (33), and the other end of the rotating shaft (33) is fixedly sleeved with a first bevel gear (34).

7. Marine natural gas incineration apparatus according to claim 6, characterized in that: The outer surface of the first bevel gear (34) is meshingly connected with a second bevel gear (35), the inner portion of the second bevel gear (35) is fixedly sleeved with a vertical shaft (36), the outer surface of the vertical shaft (36) is threadedly sleeved with the inner portion of the vertical rod (30), the outer surface of the vertical shaft (36) is movably sleeved with a second protective shell (37), and the outer surface of the second protective shell (37) is fixedly connected with the inner portion of the air outlet pipe (2).

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