A dual-fuel methanol storage and supply tank for very large crude carriers

Abstract

This utility model belongs to the field of fuel storage and supply technology, specifically a dual-fuel methanol storage and supply tank for very large crude carriers, including a support base; a storage and supply tank body is fixedly connected to the top of the support base, and the interior of the storage and supply tank body has a fuel oil chamber, a methanol chamber and a conversion chamber arranged sequentially from left to right. A gas guide pipe connects the methanol chamber and the conversion chamber. A venting plate is fixedly connected to the middle of the inner wall of the conversion chamber, and an esterification tank is located in the middle of the top of the venting plate. By setting up the esterification tank and cooperating with the gas guide pipe, the volatile methanol is introduced into the conversion chamber until it is sent into the esterification tank for esterification reaction, which can produce fatty acid methyl ester and glycerol. Fatty acid methyl ester is biodiesel. As a green fuel, it can replace fossil diesel, reduce greenhouse gas emissions, and thus improve the utilization rate of methanol.

Description

Technical Field

[0001] This utility model belongs to the field of fuel storage and supply technology, specifically a dual-fuel methanol storage and supply tank for very large crude oil tankers. Background Technology

[0002] A fuel storage and supply system is a system that transports fuel from storage equipment to combustion equipment and maintains stable pressure, temperature, and flow during the transportation process. It is also a core component of energy utilization, encompassing fuel storage, transportation, regulation, and emissions. Its purpose is to provide a stable and reliable fuel supply to combustion equipment and ensure efficient combustion.

[0003] Currently, fuel storage and supply systems mainly use components such as pressure regulating valves and buffers to ensure the continuity of fuel delivery and prevent combustion interruption due to pressure fluctuations. At the same time, fuel filters are used to filter impurities and prevent particulate matter from entering the combustion chamber, thus protecting the engine or combustion equipment. In this process, the fuel supply also needs to be dynamically adjusted according to the equipment operating conditions to improve combustion efficiency and reduce energy consumption.

[0004] Current technologies also involve the use of dual-fuel methanol, which can improve combustion efficiency and the technologies are relatively mature. However, both fuel oil and methanol are volatile, especially when methanol is used as fuel, methanol evaporates directly and is then adsorbed, so the utilization rate of methanol still needs to be improved.

[0005] Therefore, a dual-fuel methanol storage and supply tank system for very large crude carriers is proposed to address the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies and the problem that methanol is directly volatilized and then adsorbed when used as fuel, resulting in a need to improve methanol utilization, a dual-fuel methanol storage and supply tank system for very large crude oil tankers is proposed.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A dual-fuel methanol storage and supply tank for a very large crude oil tanker, comprising a support base; a storage and supply tank body is fixedly connected to the top of the support base; the interior of the storage and supply tank body is provided with a fuel oil chamber, a methanol chamber and a conversion chamber from left to right; a gas guide pipe is connected between the methanol chamber and the conversion chamber; a venting plate is fixedly connected to the middle of the inner wall of the conversion chamber; an esterification box is provided in the middle of the top of the venting plate; the two ends of the gas guide pipe are respectively located at the top of one side of the inner wall of the methanol chamber and at the bottom of the venting plate on the inner wall of the conversion chamber; a control valve is connected to the end of the gas guide pipe located at the bottom of the venting plate on the inner wall of the conversion chamber.

[0008] Preferably, a square isolation box is fixedly connected to one side of the inner wall of the methanol chamber and at one end of the gas guide pipe, and the top of the square isolation box is provided with a vent hole.

[0009] Preferably, the top of the storage tank is fitted with a sealing top cover, and a feed pipe is connected inside the sealing top cover at the top of the fuel chamber and the methanol chamber. An adsorption sealing plug is inserted into the top of the fuel chamber through the feed pipe, and a leak-proof sealing plug is inserted into the top of the methanol chamber through the feed pipe.

[0010] Preferably, the surface of the storage tank is connected to both the fuel chamber and the methanol chamber by L-shaped pipes, and the surface of the L-shaped pipes is connected to an electronically controlled valve. The number of L-shaped pipes is set to two, and the two L-shaped pipes are connected to each other. A guide pipe is connected at the point where the two L-shaped pipes are connected.

[0011] Preferably, a stirring shaft is rotatably connected to both sides of the esterification chamber, and a spiral stirring blade is fixedly connected to the surface of the stirring shaft and at a position inside the esterification chamber. A wedge-shaped bracket is fixedly connected to the inner wall of the conversion chamber, and the wedge-shaped bracket abuts against the surface of the esterification chamber.

[0012] Preferably, a motor cylinder is fixedly connected to the surface of the storage tank, and an electric motor is fixedly connected inside the motor cylinder. The output shaft of the electric motor is fixedly connected to one end of the stirring shaft via a coupling.

[0013] The beneficial effects of this utility model are: This invention provides a dual-fuel methanol storage and supply tank for very large crude carriers. By setting up an esterification tank and using a gas guide pipe to introduce volatile methanol into the conversion chamber, it is sent into the esterification tank for esterification reaction, which can produce fatty acid methyl ester and glycerol. Fatty acid methyl ester is biodiesel. As a green fuel, it can replace fossil diesel, reduce greenhouse gas emissions, and thus improve the utilization rate of methanol.

[0014] This invention provides a dual-fuel methanol storage and supply tank for very large crude carriers. By setting up a stirring shaft and spiral stirring blades, the inside of the esterification tank can be stirred, which can accelerate the esterification reaction and ensure that the methanol entering the esterification tank can be fully reacted, thereby improving the esterification efficiency. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is the first perspective view of the present invention; Figure 2This is the second perspective view of the present invention; Figure 3 This is a perspective view of the cross-sectional structure of this utility model; Figure 4 This is a perspective view of the internal structure of the storage tank in this utility model; Figure 5 This is a perspective view of the internal structure of the esterification box in this utility model; Figure 6 This is an exploded view of the internal structure of the conversion cavity in this utility model; Legend: 1. Support base; 2. Storage tank; 3. Fuel chamber; 4. Methanol chamber; 5. Conversion chamber; 6. Gas guide pipe; 7. Ventilation plate; 8. Esterification tank; 9. Control valve; 10. Square isolation box; 11. Ventilation hole; 12. Sealed top cover; 13. Feed pipe; 14. Adsorption sealing plug; 15. Leakage prevention sealing plug; 16. L-shaped pipe; 17. Electrically controlled valve; 18. Guide pipe; 19. Stirring shaft; 20. Spiral stirring blades; 21. Wedge bracket; 22. Motor barrel; 23. Electric motor. Detailed Implementation

[0016] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Specific implementation examples are given below.

[0018] Please see Figure 1 - Figure 6This utility model provides a dual-fuel methanol storage and supply tank for a very large crude carrier, including a support base 1; a storage and supply tank 2 is fixedly connected to the top of the support base 1, and the interior of the storage and supply tank 2 has a fuel oil chamber 3, a methanol chamber 4, and a conversion chamber 5 arranged sequentially from left to right. A gas guide pipe 6 connects the methanol chamber 4 and the conversion chamber 5. A venting plate 7 is fixedly connected to the middle of the inner wall of the conversion chamber 5, and an esterification box 8 is located in the middle of the top of the venting plate 7. The two ends of the gas guide pipe 6 are respectively located at the top of one side of the inner wall of the methanol chamber 4 and at the bottom of the venting plate 7 on the inner wall of the conversion chamber 5. A control valve 9 is connected to the end of the gas guide pipe 6 located at the bottom of the venting plate 7 on the inner wall of the conversion chamber 5. During operation, the support base 1 supports the storage and supply tank 2, the fuel oil chamber 3 stores fuel oil, the methanol chamber 4 stores methanol, and the conversion chamber 5 oxidizes methanol. The methanol volatilized inside the methanol chamber 4 floats at the top of the methanol chamber 4 and can then enter the conversion chamber 5 through the gas guide pipe 6. The control valve 9 is used to control the exhaust operation of the gas guide pipe 6, and the methanol can float upward from the bottom of the vent plate 7. As the methanol continues to float upward, some of the methanol will slowly sink into the esterification tank 8. Inside the esterification tank 8, triglycerides and a catalyst of base or acid are placed, and then an esterification reaction can occur inside the esterification tank 8 to produce fatty acid methyl esters and glycerol. The whole process is achieved by setting up the esterification tank 8 and using the gas guide pipe 6 to introduce the volatilized methanol into the conversion chamber 5 until it is sent into the esterification tank 8 for esterification reaction, which can produce fatty acid methyl esters and glycerol. Fatty acid methyl esters are biodiesel. As a green fuel, it can replace fossil diesel, reduce greenhouse gas emissions, and thus improve the utilization rate of methanol.

[0019] Furthermore, such as Figure 3 and Figure 4 As shown, a square isolation box 10 is fixedly connected to one side of the inner wall of the methanol chamber 4 and at one end of the gas guide pipe 6. The top of the square isolation box 10 is provided with a vent hole 11. A sealing top cover 12 is snapped onto the top of the storage tank 2. A feed pipe 13 is connected to the inside of the sealing top cover 12 and at the top of the fuel chamber 3 and the methanol chamber 4. An adsorption sealing plug 14 is inserted into the top of the fuel chamber 3 through the feed pipe 13, and a leak-proof sealing plug 15 is inserted into the top of the methanol chamber 4 through the feed pipe 13. During operation, a square isolation box 10 is fixed to the inner wall of the methanol chamber 4. Liquid methanol will not wait until it enters the gas guide pipe 6 and enter the gas guide pipe 6, which can increase the storage height of methanol. The volatile methanol will enter the square isolation box 10 through the vent hole 11 at the top of the square isolation box 10 and finally be discharged from the gas guide pipe 6. The sealing top cover 12 seals the top of the storage tank 2. The feed pipe 13 is set at the top of the storage tank 2 and can be used to introduce fuel oil and methanol respectively. The adsorption sealing plug 14 seals the inside of the fuel chamber 3 and can also adsorb the volatile fuel oil. The leak-proof sealing plug 15 seals the inside of the methanol chamber 4.

[0020] Furthermore, such as Figure 2 and Figure 3 As shown, L-shaped pipes 16 are connected to the surface of the storage tank 2 at the locations of the fuel chamber 3 and the methanol chamber 4. Two L-shaped pipes 16 are connected to the surface of each L-shaped pipe 16, and these two L-shaped pipes 16 are interconnected. A guide pipe 18 is connected at the point where the two L-shaped pipes 16 connect. During operation, the two L-shaped pipes 16 connect the storage tank 2 to the fuel chamber 3 and the methanol chamber 4, allowing fuel and methanol inside the fuel chamber 3 and methanol chamber 4 to be discharged through the L-shaped pipes 16. This process is controlled by the electronically controlled valve 17, prioritizing the supply of methanol. After methanol is used, the electronically controlled valve 17 closes the methanol discharge L-shaped pipe 16, while the electronically controlled valve 17 opens the fuel discharge L-shaped pipe 16, allowing fuel to be discharged. The two L-shaped pipes 16 are connected to the guide pipe 18, which then transports either fuel or methanol, enabling the rotation of two fuels.

[0021] Furthermore, such as Figure 1 and Figure 3 - Figure 5 As shown, stirring shafts 19 are rotatably connected to both sides of the esterification tank 8. Spiral stirring blades 20 are fixedly connected to the surface of the stirring shafts 19 and located inside the esterification tank 8. A wedge-shaped bracket 21 is fixedly connected to the inner wall of the conversion chamber 5 and abuts against the surface of the esterification tank 8. A motor cylinder 22 is fixedly connected to the surface of the storage tank 2. A motor 23 is fixedly connected inside the motor cylinder 22. The output shaft of the motor 23 is fixedly connected to one end of the stirring shaft 19 through a coupling. During operation, the surface of the storage tank 2 is supported and fixed with a motor cylinder 22, and the motor cylinder 22 is supported and installed with a motor 23. After the motor 23 starts working, it drives the stirring shaft 19 to start rotating through the output shaft. After the stirring shaft 19 rotates, it drives the spiral stirring blades 20 to rotate, which can stir the inside of the esterification tank 8. The wedge-shaped bracket 21 is used to abut and limit the esterification tank 8 to prevent the esterification tank 8 from deviating to the side. The whole system, by setting the stirring shaft 19 and the spiral stirring blades 20, can stir the inside of the esterification tank 8, which can accelerate the esterification reaction and also ensure that the methanol entering the esterification tank 8 can be fully reacted, thereby improving the esterification efficiency.

[0022] Working principle: When methanol is used as fuel, it evaporates directly and is then adsorbed, which means that the utilization rate of methanol still needs to be improved. First, the storage tank 2 is supported by the support base 1. Fuel is stored in the fuel chamber 3, methanol is stored in the methanol chamber 4, and methanol is converted in the conversion chamber 5. Methanol that evaporates in the methanol chamber 4 floats to the top of the methanol chamber 4 and can then enter the conversion chamber 5 through the gas pipe 6. The control valve 9 is used to control the exhaust of the gas pipe 6. Methanol can float upward from the bottom of the vent plate 7. As the methanol continues to float upward, some of it will slowly sink into the esterification tank 8. Triglycerides and a catalyst of base or acid are placed in the esterification tank 8, and an esterification reaction can occur in the esterification tank 8 to produce fatty acid methyl esters and glycerol. The whole process is achieved by setting up the esterification tank 8 and using the gas pipe 6 to introduce the evaporated methanol into the conversion chamber 5 until it is sent into the esterification tank 8 for esterification reaction, which can produce fatty acid methyl esters and glycerol. Fatty acid methyl esters are biodiesel. As a green fuel, it can replace fossil diesel, reduce greenhouse gas emissions, and thus improve the utilization rate of methanol. Meanwhile, a square isolation box 10 is fixed to the inner wall of the methanol chamber 4. Liquid methanol will not wait until it enters the gas guide pipe 6 and enter the gas guide pipe 6, which can increase the storage height of methanol. The volatile methanol will enter the square isolation box 10 through the vent hole 11 at the top of the square isolation box 10 and finally be discharged from the gas guide pipe 6. The sealing top cover 12 seals the top of the storage tank 2. The feed pipe 13 is set at the top of the storage tank 2 and can be used to introduce fuel oil and methanol respectively. The adsorption sealing plug 14 seals the inside of the fuel chamber 3 and can also adsorb the volatile fuel oil. The leak-proof sealing plug 15 seals the inside of the methanol chamber 4. Two L-shaped pipes 16 are installed, connecting the storage tank 2 to the fuel chamber 3 and the methanol chamber 4. This allows the fuel and methanol inside the fuel chamber 3 and the methanol chamber 4 to be discharged through the L-shaped pipes 16. This process is controlled by an electronically controlled valve 17, which prioritizes the supply of methanol. After the methanol is used, the electronically controlled valve 17 closes the L-shaped pipe 16 for discharging methanol, and opens the L-shaped pipe 16 for discharging fuel, allowing the fuel to be discharged. The two L-shaped pipes 16 are connected to a guide pipe 18, which then transports the fuel or methanol for subsequent use, thus achieving the rotation of dual fuels. Finally, the surface of the storage tank 2 is supported and fixed with a motor cylinder 22, and a motor 23 is installed inside the motor cylinder 22. After the motor 23 starts working, it drives the stirring shaft 19 to start rotating through the output shaft. After the stirring shaft 19 rotates, it drives the spiral stirring blades 20 to rotate, which can stir the inside of the esterification tank 8. The wedge-shaped bracket 21 is used to abut and limit the esterification tank 8 to prevent the esterification tank 8 from deviating to the side. By setting the stirring shaft 19 and the spiral stirring blades 20, the inside of the esterification tank 8 can be stirred, which can accelerate the esterification reaction and also allow the methanol entering the esterification tank 8 to be fully reacted, thereby improving the esterification efficiency.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A dual fuel methanol storage and supply tank installation for a very large crude carrier, characterized by: Includes a support base (1); a storage tank (2) is fixedly connected to the top of the support base (1). The storage tank (2) has a fuel chamber (3), a methanol chamber (4) and a conversion chamber (5) arranged from left to right inside. A gas guide pipe (6) is connected between the methanol chamber (4) and the conversion chamber (5). A permeable plate (7) is fixedly connected to the middle of the inner wall of the conversion chamber (5). An esterification box (8) is provided in the middle of the top of the permeable plate (7). The two ends of the gas guide pipe (6) are respectively located at the top of one side of the inner wall of the methanol chamber (4) and at the bottom of the permeable plate (7) on the inner wall of the conversion chamber (5). A control valve (9) is connected to the end of the gas guide pipe (6) located at the bottom of the permeable plate (7) on the inner wall of the conversion chamber (5).

2. A dual fuel methanol storage and supply tank installation for a very large crude carrier as claimed in claim 1, characterized in that: A square isolation box (10) is fixedly connected to one side of the inner wall of the methanol chamber (4) and at one end of the gas guide pipe (6). The top of the square isolation box (10) is provided with a vent hole (11).

3. A dual fuel methanol storage and supply tank installation for a very large crude carrier as claimed in claim 1, characterized in that: The top of the storage tank (2) is fitted with a sealing top cover (12). The inside of the sealing top cover (12) and at the top of the fuel chamber (3) and methanol chamber (4) is connected to a feed pipe (13). An adsorption sealing plug (14) is inserted into the top of the fuel chamber (3) through the feed pipe (13). A leak-proof sealing plug (15) is inserted into the top of the methanol chamber (4) through the feed pipe (13).

4. A dual-fuel methanol storage and supply tank system for a very large crude carrier according to claim 1, characterized in that: The surface of the storage tank (2) and the location of the fuel chamber (3) and methanol chamber (4) are connected to L-shaped pipes (16). The surface of the L-shaped pipes (16) is connected to an electric control valve (17). The number of L-shaped pipes (16) is set to two, and the two L-shaped pipes (16) are connected to each other. The location where the two L-shaped pipes (16) are connected is connected to a guide pipe (18).

5. A dual-fuel methanol storage and supply tank system for a very large crude carrier according to claim 1, characterized in that: The two sides of the esterification tank (8) are rotatably connected to a stirring shaft (19). A spiral stirring blade (20) is fixedly connected to the surface of the stirring shaft (19) and at a position inside the esterification tank (8). A wedge-shaped bracket (21) is fixedly connected to the inner wall of the conversion chamber (5). The wedge-shaped bracket (21) abuts against the surface of the esterification tank (8).

6. A dual-fuel methanol storage and supply tank system for a very large crude carrier according to claim 1, characterized in that: The surface of the storage tank (2) is fixedly connected to a motor cylinder (22), and the inside of the motor cylinder (22) is fixedly connected to a motor (23). The output shaft of the motor (23) is fixedly connected to one end of the stirring shaft (19) through a coupling.

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