Offshore reactor for methanol production

Abstract

The utility model relates to an offshore methanol production reactor applied to the field of reaction equipment, which comprises a reactor body, the left side of the lower end of the reactor body is fixedly connected with a first pipeline, the lower side of the inner end of the reactor body is fixedly connected with a gas cavity, and the middle of the gas cavity is fixedly connected with a gas flow pipe orifice. The upper end of the airflow pipe opening is fixedly connected with an air expanding annular plate, the inner wall of the air cavity is provided with an air dispersing annular plate located on the upper side of the air expanding annular plate, the upper end of the air dispersing annular plate is provided with a plurality of air holes, the inner side walls of the air holes are fixedly connected with inner rings, the upper ends of the inner rings are fixedly connected with springs, and the upper ends of the springs are fixedly connected with balls. In the offshore methanol production reactor, the gas flow pipe orifice is utilized to eject the gas to sequentially pass through the gas holes in the gas dispersing ring plates, so that the gas flowing in the different gas dispersing ring plates is balanced, and the subsequent contact effect of the gas and a catalyst is effectively improved.

Description

Technical Field

[0001] The utility model relates to a reactor for producing methanol at sea, and in particular to a reactor for producing methanol at sea applied in the field of reaction equipment. Background Art

[0002] As global energy demand continues to grow, finding a sustainable energy supply and reducing carbon emissions have become important directions of scientific research. Hydrogenation of carbon dioxide to methanol is a promising technology that can reduce greenhouse gas emissions and achieve efficient resource utilization in marine and offshore applications. However, the reactor for methanol production at sea has the disadvantage of being difficult to disassemble in actual use.

[0003] The specification of Chinese patent CN214320160U discloses that the utility model discloses a methanol synthesis tower, including a synthesis tower body, an upper tube plate and a lower tube plate. The utility model adopts a synthesis tower body, and one end of the synthesis tower body is integrally connected with a mounting ring plate. When the internal facilities need to be replaced, the fixing bolts can be removed, and the upper pressure ring and the lower pressure ring can be separated to open the synthesis tower body to expose the internal facilities for easy replacement and maintenance. Compared with the traditional integrated tower body, the device is easy to open, and maintenance and replacement are more convenient and quick.

[0004] The specification of Chinese patent CN218567354U discloses an automatic detection structure of a methanol preparation device, including a methanol synthesis tower, a methanol detector and a fastening component for quickly disassembling and assembling the methanol detector. The utility model solves the problem that the existing gas detectors are mostly fixed with bolts when installed on the methanol synthesis tower, and are inconvenient to disassemble when damaged and need to be replaced, by arranging the methanol synthesis tower, the methanol detector, the fixing block, the mounting groove and the through opening.

[0005] When gas is introduced into the existing offshore methanol production reactor, the uniformity of gas introduction cannot be guaranteed, and the subsequent methanol production efficiency cannot be guaranteed. Therefore, it is necessary to design an offshore methanol production reactor to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that when gas is introduced into the existing reactor for offshore methanol production, the uniformity of gas introduction cannot be guaranteed, and the subsequent methanol production efficiency cannot be guaranteed.

[0007] In order to solve the above problems, the utility model provides a reactor for producing methanol at sea, including a reactor body, a first pipeline is fixedly connected to the left side of the lower end of the reactor body, a gas cavity is fixedly connected to the lower side of the inner end of the reactor body, a gas flow nozzle is fixedly connected to the middle of the gas cavity, a gas expansion ring plate is fixedly connected to the upper end of the gas flow nozzle, and the inner wall of the gas cavity is provided with a gas diffusion ring plate located just above the gas diffusion ring plate, a plurality of air holes are opened at the upper end of the gas diffusion ring plate, an inner side wall of the air hole is fixedly connected to an internal ring, an upper end of the internal ring is fixedly connected to a spring, and an upper end of the spring is fixedly connected to a sphere.

[0008] In the above-mentioned reactor for offshore methanol production, this scheme uses a first pipeline to introduce gas into the gas cavity in the reactor body, uses the air flow pipe to spray the gas out, and uses the gas expansion ring plate to diffuse the gas, and passes through the air holes in the gas diffusion ring plate in turn, so that the gas flowing from different gas diffusion ring plates can be balanced, effectively improving the subsequent contact effect of the gas with the catalyst.

[0009] As a further improvement of the present application, the inner diameters of the plurality of air holes are equidistantly enlarged from the inner circle to the outer circle.

[0010] As a further improvement of the present application, a second pipeline is fixedly connected to the right side of the lower end of the reactor body, and the second pipeline is externally connected to a pump.

[0011] As a further improvement of the present application, a plurality of guide grooves are provided at the outer end of the sphere, and the plurality of guide grooves are arranged at equal distances.

[0012] As another improvement of the present application, a rough surface block is fixedly connected to the middle portion of the outer end of the sphere, and a plurality of rough surface blocks are engaged with the upper portions of the inner walls of the corresponding pores.

[0013] As another improved supplement of the present application, a third pipe is fixedly connected to the upper end of the reactor body, and both the first pipe and the second pipe extend into the gas chamber.

[0014] As another improved supplement of the present application, the four corners of the lower end of the reactor body are fixedly connected with supporting legs.

[0015] In summary, the present scheme utilizes the first pipeline to introduce the gas into the gas cavity in the reactor body, utilizes the airflow pipe port to eject the gas, utilizes the air expansion ring plate to diffuse the gas, and sequentially passes through the air holes in the air diffusion ring plate, so that the gas flowing from different air diffusion ring plates can be balanced, thereby effectively improving the subsequent contact effect between the gas and the catalyst, and a sphere is arranged in the air hole, and the sphere follows the gas ejection path and is pushed out of the air diffusion ring plate, and the gas passing through the air hole can be stirred by a spring, and the guide groove outside the air diffusion ring plate is cooperated with to further improve the uniformity of the air flow diversion, thereby ensuring the production efficiency of the reactor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an axonometric view of a reactor body according to a first embodiment of the present application;

[0017] Figure 2 It is a front cross-sectional view of the reactor body of the first and second embodiments of the present application;

[0018] Figure 3 This is a magnified view of the gas chamber according to the first embodiment of the present application;

[0019] Figure 4 This is a schematic diagram of a diffuser ring plate according to a first embodiment of the present application;

[0020] Figure 5 This is a front cross-sectional view of the pore of the first embodiment of the present application;

[0021] Figure 6 This is a diagram of the ball engagement state of the first and second embodiments of the present application;

[0022] Figure 7 This is an axonometric view of a sphere according to the first and second embodiments of the present application.

[0023] Description of the numbers in the figure:

[0024] 1. Reactor body; 2. First pipeline; 3. Second pipeline; 4. Third pipeline; 5. Air flow nozzle; 6. Leg; 7. Gas cavity; 8. Air expansion ring plate; 9. Air dispersion ring plate; 10. Air hole; 11. Spring; 12. Sphere; 13. Inner ring; 14. Rough surface block; 15. Guide groove. DETAILED DESCRIPTION

[0025] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0026] The first implementation method:

[0027] Figure 2-6 It is shown that it includes a reactor body 1, a first pipe 2 is fixedly connected to the left side of the lower end of the reactor body 1, a gas cavity 7 is fixedly connected to the lower side of the inner end of the reactor body 1, a gas flow nozzle 5 is fixedly connected to the middle of the gas cavity 7, the first pipe 2 and the second pipe 3 are both connected to the gas flow nozzle 5, an air expansion ring plate 8 is fixedly connected to the upper end of the gas flow nozzle 5, an inner wall of the gas cavity 7 is provided with a diffuser ring plate 9 located just above the diffuser ring plate 8, a plurality of air holes 10 are opened at the upper end of the diffuser ring plate 9, an inner side wall of the air hole 10 is fixedly connected to an inner ring 13, an upper end of the inner ring 13 is fixedly connected to a spring 11, and an upper end of the spring 11 is fixedly connected to a sphere 12.

[0028] Figure 2-7It is shown that the inner diameters of the multiple air holes 10 are equidistantly enlarged from the inner circle to the outer circle, the outer end of the sphere 12 is provided with a plurality of guide grooves 15, and the multiple guide grooves 15 are equidistantly arranged, the upper end of the reactor body 1 is fixedly connected to the third pipe 4, the first pipe 2 and the second pipe 3 both extend into the gas chamber 7, and the four corners of the lower end of the reactor body 1 are fixedly connected to the legs 6.

[0029] Figure 2-7 The raw materials for the CO2 hydrogenation synthesis methanol reaction are CO2 and H2. CO2 can first be allowed to enter the reactor body 1, mixed with H2, and then enter the compressor, heated to the first-stage reactor by the preheater, and then enter the condenser through the preheater, cooled with cooling water, and then sent to the separator for gas-liquid separation. The gas separated by the separator enters the heater through the preheater, and then mixed with the fresh raw gas in the 2nd-stage reactor to enter the circulating reaction system. The finished crude methanol separated by the gas-liquid separator can be stored in the crude finished oil tank. In this scheme, when CO2 and H2 are mixed, the first pipeline 2 is used to introduce the gas into the gas cavity 7 in the reactor body 1, and the gas is introduced into the gas cavity 7 in the reactor body 1 by the gas flow nozzle 5. The gas is diffused by the air expansion ring plate 8 and passes through the air holes 10 in the air diffusion ring plate 9 in sequence. The arrangement principle of the air holes 10 is that the inner diameter is small at the position close to the air flow nozzle 5 and is gradually enlarged at the position away from the air flow nozzle 5. The diffusion amount of the gas flowing out from the air flow nozzle 5 makes the gas flowing from different air diffusion ring plates 9 balanced, effectively improving the subsequent contact effect of the gas with the catalyst, and a sphere 12 is arranged in the air hole 10. The sphere 12 follows the gas ejection path and pushes out of the air diffusion ring plate 9. The spring 11 can be used to stir the gas passing through the air hole 10, and the guide groove 15 outside the air expansion ring plate 8 is cooperated to further improve the uniformity of the air flow, thereby ensuring the production efficiency of the reactor body 1.

[0030] The second implementation method:

[0031] Figure 2 , Figure 6-7 It is shown that a second pipe 3 is fixedly connected to the right side of the lower end of the reactor body 1, and a pump is externally connected to the second pipe 3. A rough surface block 14 is fixedly connected to the middle of the outer end of the sphere 12. Multiple rough surface blocks 14 are engaged with the upper inner walls of the corresponding pores 10. When the reactor body 1 is shut down, the pump externally connected to the second pipe 3 is used to absorb the sphere 12 downward to form a negative pressure A. The rough surface block 14 is engaged with the circle position of the pore 10 to close the pore 10, which is beneficial to ensure the sealing of the gas chamber 7, prevent foreign matter from falling into it, and effectively ensure its service life.

[0032] In view of current practical needs, the protection scope of the above-mentioned implementation mode adopted by this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A reactor for offshore methanol production, characterized in that: The invention comprises a reactor body (1), wherein a first pipe (2) is fixedly connected to the left side of the lower end of the reactor body (1), a gas chamber (7) is fixedly connected to the lower side of the inner end of the reactor body (1), a gas flow pipe opening (5) is fixedly connected to the middle of the gas chamber (7), a gas expansion ring plate (8) is fixedly connected to the upper end of the gas flow pipe opening (5), the inner wall of the gas chamber (7) is provided with a gas diffusion ring plate (9) located directly above the gas diffusion ring plate (8), a plurality of gas holes (10) are opened at the upper end of the gas diffusion ring plate (9), an inner side wall of the gas hole (10) is fixedly connected to an inner ring (13), the upper end of the inner ring (13) is fixedly connected to a spring (11), and the upper end of the spring (11) is fixedly connected to a sphere (12).

2. A reactor for producing methanol at sea according to claim 1, characterized in that: The inner diameters of the plurality of air holes (10) are equidistantly enlarged from the inner circle to the outer circle.

3. The reactor for producing methanol at sea according to claim 1, characterized in that: A second pipeline (3) is fixedly connected to the right side of the lower end of the reactor body (1), and the second pipeline (3) is externally connected to a pump.

4. The reactor for producing methanol at sea according to claim 1, characterized in that: The outer end of the sphere (12) is provided with a plurality of flow guide grooves (15), and the plurality of flow guide grooves (15) are arranged at equal distances.

5. The reactor for producing methanol at sea according to claim 1, characterized in that: A rough surface block (14) is fixedly connected to the middle portion of the outer end of the spherical body (12), and a plurality of the rough surface blocks (14) are engaged with the upper portions of the inner walls of the corresponding air holes (10).

6. The reactor for producing methanol at sea according to claim 3, characterized in that: The upper end of the reactor body (1) is fixedly connected to a third pipe (4), and the first pipe (2) and the second pipe (3) both extend into the gas chamber (7).

7. The reactor for producing methanol at sea according to claim 1, characterized in that: The four corners of the lower end of the reactor body (1) are fixedly connected with supporting legs (6).

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