A gas-liquid mixing injector for ethyl vanillin oxidation column

Abstract

The utility model relates to the field of chemical equipment for spice production discloses a gas -liquid mixing injector for ethyl vanillin oxidation tower, including work main stream import pipe, the outside fixed connection of work main stream import pipe has the mixing chamber, the upper surface of mixing chamber is connected with work secondary flow import pipe, one end of work main stream import pipe is connected with the nozzle, one side of mixing chamber is provided with the connecting shell, one side of connecting shell is connected with the connecting pipe, one end of connecting pipe is provided with the throat pipe, one end of throat pipe is provided with the diffusion pipe. The utility model is convenient for the wall scraping of throat pipe inner wall, and the scraping rod is scraped comprehensively by the connecting effect of the rotating ring, and the deposits of throat pipe inner wall are effectively removed, and at the same time, the convenient disassembly separation of the injection pipe and the nozzle in the injector is convenient, not only convenient for the separate replacement of the nozzle or injection pipe to reduce the maintenance cost, but also allows the replacement of the nozzle or injection pipe of different geometric shapes according to the actual demand.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment for fragrance production, and more particularly to a gas-liquid mixing injector for an ethyl vanillin oxidation tower. Background Technology

[0002] Ethyl vanillin is a synthetic fragrance, appearing as a white to slightly yellow crystalline powder with a strong vanilla aroma. The ethyl vanillin oxidation tower is a key piece of equipment used in chemical production to synthesize ethyl vanillin. Its core function is to convert raw materials into ethyl vanillin through an oxidation reaction. The gas-liquid mixing injector is the core mass transfer device in the ethyl vanillin oxidation process. Its function is to achieve forced mixing of gas and liquid (ethyl vanillin solution) through high-speed injection, thereby enhancing the efficiency of the oxidation reaction.

[0003] A search revealed that Chinese Patent CN201664585U discloses a gas-liquid mixing injector for an ethyl vanillin oxidation tower. This injector addresses the issues of long single-batch reaction times leading to low production efficiency and insufficient reaction resulting in low yield. It achieves a good gas-liquid homogeneous phase distribution effect, effectively improving reaction efficiency and yield.

[0004] The aforementioned gas-liquid mixing injector facilitates improved gas-liquid reaction efficiency. When using the aforementioned gas-liquid mixing injector to inject gas and ethyl vanillin solution, the solution usually passes through the throat of the injector. The throat is usually quite long, and byproducts generated by the oxidation reaction, such as polymers and salts, may deposit on the inner wall of the throat. In addition, impurities in the raw materials, such as catalyst residues, gradually accumulate during high-speed flow, causing scaling on the inner wall of the throat. Scaling can easily reduce the flow area, resulting in a decrease in flow rate. At the same time, it increases fluid resistance, leading to increased energy consumption of the pump or compressor, thereby easily reducing the performance of the injector. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a gas-liquid mixing injector for an ethyl vanillin oxidation tower.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a gas-liquid mixing injector for an ethyl vanillin oxidation tower, comprising a main working inlet pipe, a mixing chamber fixedly connected to the outside of the main working inlet pipe, a secondary working inlet pipe connected through the upper surface of the mixing chamber, a nozzle connected through one end of the main working inlet pipe, a connecting shell provided on one side of the mixing chamber, a connecting pipe connected through one side of the connecting shell, a throat provided at one end of the connecting pipe, a diffuser provided at one end of the throat, multiple connecting blocks fixedly connected to both ends of the throat, the connecting pipe and the diffuser respectively fixedly connected to one end of the multiple connecting blocks, and a wall scraping assembly provided between the connecting pipe and the throat.

[0007] As a further description of the above technical solution: The wall scraping assembly includes a first rotating ring, which is rotatably connected between the connecting pipe and the throat pipe. A second rotating ring is rotatably connected between the throat pipe and the diffuser pipe. A scraper rod is fixedly connected to the inner walls of the second rotating ring and the first rotating ring.

[0008] As a further description of the above technical solution: The second rotating ring is fixedly connected to the outside of a first external gear ring, and the first rotating ring is fixedly connected to the outside of a second external gear ring. A variable speed motor is fixedly installed on the upper surface of the connecting pipe, and a rotating rod is fixedly connected to the output end of the variable speed motor.

[0009] As a further description of the above technical solution: One end of the rotating rod is fixedly connected to a first gear, and the other end of the rotating rod is fixedly connected to a second gear. The second gear is meshed with the first external gear ring, and the second external gear ring is meshed with the first gear.

[0010] As a further description of the above technical solution: A disassembly assembly is provided on one side of the mixing chamber. The disassembly assembly includes a mounting ring, which is fixedly connected to one side of the mixing chamber. A sealing ring is provided on one side of the mounting ring, and locking holes are provided on both sides of the mounting ring.

[0011] As a further description of the above technical solution: A mounting shell is fixedly connected to one side of the connecting shell. Through holes are provided on both sides of the mounting shell. A fixing frame is fixedly connected to one side of the connecting shell. A bidirectional lead screw is rotatably connected inside the fixing frame. A knob is fixedly connected to one end of the bidirectional lead screw.

[0012] As a further description of the above technical solution: The external threaded connection of the bidirectional lead screw has two connecting frames, which are slidably connected to the outside of the fixed frame. An arc-shaped plate is fixedly connected to one side of each connecting frame, and a fastening block is fixedly connected to the lower surface of the arc-shaped plate.

[0013] This utility model has the following beneficial effects: 1. This utility model, through the setting of the wall scraping component, enhances the cleaning effect of the inner wall of the throat tube by utilizing the built-in scraper at the throat tube during the use of the gas-liquid mixing injector. With the connection of the rotating ring, it is easy to drive the scraper to scrape the inner wall of the throat tube in a circular motion, which improves the comprehensiveness of the throat tube wall scraping, helps to remove deposits on the inner wall of the throat tube, thereby improving the unobstructed flow of the throat tube, reducing the phenomenon of flow field distortion caused by scaling, and thus helping to improve product quality and extend equipment life.

[0014] 2. By setting up a disassembly and assembly component, this utility model facilitates the disassembly and separation of the injection pipe and nozzle in the gas-liquid mixing injector during use. This is achieved by utilizing the cooperation between the mounting shell and the mounting ring, and the positioning of the mounting ring by the fastening block. This allows for the replacement of the nozzle or injection pipe individually without replacing the entire injector, thus reducing maintenance costs. At the same time, nozzles or injection pipes with different geometric shapes can be replaced, thereby optimizing the gas-liquid mixing effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a schematic diagram of the mounting ring structure proposed in this utility model; Figure 3 This is a schematic diagram of the arc-shaped plate connection structure proposed in this utility model; Figure 4 This is a schematic diagram of the connecting block structure proposed in this utility model; Figure 5 This is a schematic diagram of the scraper structure proposed in this utility model; Figure 6 This is a schematic diagram of the mounting shell structure proposed in this utility model; Figure 7 This is a schematic diagram of the connecting frame structure proposed in this utility model.

[0016] Legend: 1. Main flow inlet pipe; 2. Secondary flow inlet pipe; 3. Nozzle; 4. Mixing chamber; 5. Connecting shell; 6. Connecting pipe; 7. Throat; 8. Diffuser; 9. Connecting block; 10. First rotating ring; 11. Second rotating ring; 12. Scraper; 13. First external gear ring; 14. Second external gear ring; 15. Variable speed motor; 16. Rotating rod; 17. First gear; 18. Second gear; 19. Mounting ring; 20. Sealing ring; 21. Clip hole; 22. Mounting shell; 23. Through hole; 24. Fixing frame; 25. Two-way lead screw; 26. Knob; 27. Connecting frame; 28. Arc plate; 29. ​​Fastening block. Detailed Implementation

[0017] 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.

[0018] As attached Figure 1-7 As shown, one embodiment of this utility model is provided: a gas-liquid mixing injector for an ethyl vanillin oxidation tower, including a main working inlet pipe 1, a mixing chamber 4 fixedly connected to the outside of the main working inlet pipe 1, a secondary working inlet pipe 2 penetrating the upper surface of the mixing chamber 4, a nozzle 3 penetrating one end of the main working inlet pipe 1, a connecting shell 5 provided on one side of the mixing chamber 4, a connecting pipe 6 penetrating one side of the connecting shell 5, a throat 7 provided at one end of the connecting pipe 6, a diffuser 8 provided at one end of the throat 7, multiple connecting blocks 9 fixedly connected to both ends of the throat 7, the connecting pipe 6 and the diffuser 8 respectively fixedly connected to one end of the multiple connecting blocks 9, and a wall scraping assembly provided between the connecting pipe 6 and the throat 7.

[0019] As attached Figure 5 As shown, the wall scraping assembly includes a first rotating ring 10, which is rotatably connected between the connecting pipe 6 and the throat 7. A second rotating ring 11 is rotatably connected between the throat 7 and the diffuser 8. A scraper rod 12 is fixedly connected to the inner wall of the second rotating ring 11 and the first rotating ring 10. A first external gear ring 13 is fixedly connected to the outside of the second rotating ring 11, and a second external gear ring 14 is fixedly connected to the outside of the first rotating ring 10. A variable speed motor 15 is fixedly mounted on the upper surface of the connecting pipe 6, and the output end of the variable speed motor 15 is fixedly connected to... The rotating rod 16 has a first gear 17 fixedly connected to one end and a second gear 18 fixedly connected to the other end. The second gear 18 is meshed with the first external gear ring 13, and the second external gear ring 14 is meshed with the first gear 17. When the first rotating ring 10 and the second rotating ring rotate between the connecting pipe 6 and the throat 7, and between the throat 7 and the diffuser 8, they are similar to bearing connectors and rotate in a sealed manner. The scraper rod 12 facilitates scraping the inner wall of the throat 7, the diffuser 8, and the connecting pipe 6.

[0020] As attached Figure 2 As shown, a disassembly assembly is provided on one side of the mixing chamber 4. The disassembly assembly includes a mounting ring 19, which is fixedly connected to one side of the mixing chamber 4. A sealing ring 20 is provided on one side of the mounting ring 19. A locking hole 21 is provided on both sides of the mounting ring 19. The mounting ring 19 is used to connect with the mounting shell 22. The sealing ring 20 improves the sealing performance of the mounting ring 19 after installation.

[0021] As attached Figure 4 As shown, a mounting shell 22 is fixedly connected to one side of the connecting shell 5. Through holes 23 are provided on both sides of the mounting shell 22. The through holes 23 are used for the fastening block 29 to pass through.

[0022] As attached Figure 6 As shown, a fixed frame 24 is fixedly connected to one side of the connecting shell 5. A bidirectional lead screw 25 is rotatably connected inside the fixed frame 24. A knob 26 is fixedly connected to one end of the bidirectional lead screw 25. The outside of the bidirectional lead screw 25 is set with threads in opposite directions.

[0023] As attached Figure 3 As shown, the external threaded connection of the bidirectional lead screw 25 has two connecting frames 27. The two connecting frames 27 are slidably connected to the outside of the fixed frame 24. An arc plate 28 is fixedly connected to one side of the connecting frame 27. A fastening block 29 is fixedly connected to the lower surface of the arc plate 28. The arc plate 28 facilitates the connection of the fastening block 29 to the connecting frame 27.

[0024] Working principle: When this utility model is used according to the working principle of the gas-liquid mixing injector, when the gas and liquid are sprayed out by the diffuser 8 after passing through the connecting pipe 6 and the throat 7, impurities will accumulate on the inner wall of the throat 7. When scraping the deposits on the inner wall of the throat 7, the variable speed motor 15 is turned on, and its output end drives the rotating rod 16 to rotate. The rotating rod 16 drives the first gear 17 and the second gear 18 at both ends to rotate. When the first gear 17 meshes with the second external gear ring 14 and the second gear 18 meshes with the first external gear ring 13, the first rotating ring 10 and the second rotating ring 11 are driven to rotate, thereby driving the scraper 12 on the inner wall to scrape the inner wall of the throat 7, which helps to reduce the accumulation of impurities on the inner wall of the throat 7. When separating the nozzle 3 from the throat 7 for maintenance, turn the knob 26 to rotate the bidirectional lead screw 25. Under the action of the threads in opposite directions on the outside of the bidirectional lead screw 25, the two connecting frames 27 are driven away from each other. As the connecting frames 27 slide outside the fixed frame 24, they each drive the corresponding arc plate 28 away from the side of the mounting shell 22. This causes the arc plate 28 to drive one end of the fastening block 29 out of the inside of the locking hole 21 and move into the inside of the through hole 23. This makes it easier to release the restriction between the mounting shell 22 and the mounting ring 19. Then, the mounting ring 19 can be pulled out from the inside of the mounting shell 22, making it easier to disassemble this utility model into two parts for internal maintenance.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas-liquid mixing injector for an ethyl vanillin oxidation tower, comprising a main working inlet pipe (1), a mixing chamber (4) fixedly connected to the outside of the main working inlet pipe (1), a secondary working inlet pipe (2) being connected through the upper surface of the mixing chamber (4), a nozzle (3) being connected through one end of the main working inlet pipe (1), a connecting shell (5) being provided on one side of the mixing chamber (4), a connecting pipe (6) being connected through one side of the connecting shell (5), a throat (7) being provided at one end of the connecting pipe (6), and a diffuser (8) being provided at one end of the throat (7), characterized in that: Multiple connecting blocks (9) are fixedly connected to both ends of the throat tube (7). The connecting tube (6) and the diffuser tube (8) are respectively fixedly connected to one end of the multiple connecting blocks (9). A wall scraping assembly is provided between the connecting tube (6) and the throat tube (7).

2. The gas-liquid mixing injector for an ethyl vanillin oxidation tower according to claim 1, characterized in that: The scraping assembly includes a first rotating ring (10), which is rotatably connected between the connecting pipe (6) and the throat pipe (7). A second rotating ring (11) is rotatably connected between the throat pipe (7) and the diffuser pipe (8). A scraper rod (12) is fixedly connected to the inner wall of the second rotating ring (11) and the first rotating ring (10).

3. The gas-liquid mixing injector for an ethyl vanillin oxidation tower according to claim 2, characterized in that: The second rotating ring (11) is fixedly connected to the outside of a first external gear ring (13), the first rotating ring (10) is fixedly connected to the outside of a second external gear ring (14), a variable speed motor (15) is fixedly installed on the upper surface of the connecting pipe (6), and a rotating rod (16) is fixedly connected to the output end of the variable speed motor (15).

4. The gas-liquid mixing injector for an ethyl vanillin oxidation tower according to claim 3, characterized in that: One end of the rotating rod (16) is fixedly connected to a first gear (17), and the other end of the rotating rod (16) is fixedly connected to a second gear (18). The second gear (18) is meshed with the first external gear ring (13), and the second external gear ring (14) is meshed with the first gear (17).

5. The gas-liquid mixing injector for an ethyl vanillin oxidation tower according to claim 1, characterized in that: A disassembly assembly is provided on one side of the mixing chamber (4). The disassembly assembly includes a mounting ring (19), which is fixedly connected to one side of the mixing chamber (4). A sealing ring (20) is provided on one side of the mounting ring (19), and a locking hole (21) is provided on both sides of the mounting ring (19).

6. The gas-liquid mixing injector for an ethyl vanillin oxidation tower according to claim 1, characterized in that: A mounting shell (22) is fixedly connected to one side of the connecting shell (5). A through hole (23) is provided on both sides of the mounting shell (22). A fixing frame (24) is fixedly connected to one side of the connecting shell (5). A two-way screw (25) is rotatably connected inside the fixing frame (24). A knob (26) is fixedly connected to one end of the two-way screw (25).

7. The gas-liquid mixing injector for an ethyl vanillin oxidation tower according to claim 6, characterized in that: The external threaded connection of the bidirectional lead screw (25) has two connecting frames (27), which are slidably connected to the outside of the fixed frame (24). An arc plate (28) is fixedly connected to one side of the connecting frame (27), and a fastening block (29) is fixedly connected to the lower surface of the arc plate (28).

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