Hydrogen fluoride reaction furnace gas preheater

Abstract

The utility model relates to hydrogen fluoride reaction furnace field, and disclose a kind of hydrogen fluoride reaction furnace gas preheater, including base, the top of base is fixedly installed with gas preheater, the bottom inner wall of base is fixedly installed with drive cylinder, the outer surface of gas preheater is fixed with the flue duct that passes through gas preheater, the inside of base is slidably installed with component disc, the bottom of component disc is fixedly installed with mounting cylinder, drive motor is fixed in mounting cylinder, the outer wall of base is fixed with ring plate near top position, still include inner wall cleaning assembly, the collaborative effect of scraping ring and flinger of inner wall cleaning assembly, effectively remove the viscosity scale, such as sulphate, silicate, etc. that adhere to the inner wall of gas preheater, restore the smoothness of preheater inner wall, significantly improve heat transfer efficiency, reduce heat loss, thereby reduce overall energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen fluoride reactors, specifically a gas preheater for a hydrogen fluoride reactor. Background Technology

[0002] In the production of hydrogen fluoride, gas preheating is a crucial step in ensuring reaction efficiency and product quality. The gas preheater of the hydrogen fluoride reactor, as the core equipment in this process, directly affects the stability and economy of the entire production process. Specifically, the gas produced during hydrogen fluoride production often contains impurities such as sulfates and silicates. These impurities easily form sticky deposits under the high-temperature environment inside the preheater, adhering to the inner wall and key components of the gas preheater. These deposits not only reduce the heat transfer efficiency of the preheater and increase energy consumption, but may also cause equipment damage due to localized overheating, shortening equipment lifespan and even leading to safety accidents. Furthermore, the accumulation of deposits can also affect the smooth flow of gas, further reducing production efficiency. Therefore, we propose a gas preheater for a hydrogen fluoride reactor. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a gas preheater for a hydrogen fluoride reactor, which solves the aforementioned problems.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a gas preheater for a hydrogen fluoride reactor, comprising a base, a gas preheater fixedly mounted on the top of the base, a drive cylinder fixedly mounted on the inner wall of the bottom of the base, a flue pipe communicating with the gas preheater fixedly mounted on the outer surface of the gas preheater, a component disk slidably mounted inside the base, an installation cylinder fixedly mounted on the bottom of the component disk, a drive motor fixedly mounted inside the installation cylinder, and a ring plate fixedly mounted on the outer wall of the base near the top, further comprising:

[0005] An inner wall cleaning assembly, located inside the gas preheater, is used to clean the inner wall of the gas preheater.

[0006] Preferably, the piston rod on the drive cylinder slides into the gas preheater and is fixedly connected to the bottom of the mounting cylinder.

[0007] Preferably, a circular scraper ring is fixed to the outer wall of the component disk near the bottom, and the outer wall of the scraper ring is completely in contact with the inner wall of the gas preheater.

[0008] Preferably, a ring-shaped protective railing is fixedly connected to the top of the ring plate, and a sealing plate for sealing the top of the gas preheater is movably installed on the top of the protective railing.

[0009] Preferably, the inner wall cleaning assembly includes a linkage rod, a swing plate, a groove, and a rotating ring. The linkage rod is rotatably mounted on the top of the assembly disk. The output shaft of the drive motor extends rotatably out of the top of the assembly disk and is fixedly connected to the middle of the linkage rod. Both ends of the linkage rod are fixedly connected to an integrated swing plate. The sides of the two sets of swing plates that are close to each other are in contact with the outer wall of the assembly disk. The bottom of the two sets of swing plates is in contact with the top of the scraper ring. The sides of the two sets of swing plates that are opposite to each other are provided with grooves. A circular rotating ring is rotatably mounted on the inner wall of the guardrail near the top.

[0010] Preferably, the inner wall cleaning assembly further includes connecting rods, scrapers, inserts, and stop rods. Two sets of symmetrical connecting rods are fixedly connected to the inner walls on both sides of the rotating ring. Scrapers are fixedly connected to the ends of the two sets of connecting rods that are close to each other. Inserts are fixedly connected to the sides of the two sets of scrapers that are close to each other. Stop rods are fixedly connected to both sides of the inserts near the top.

[0011] Preferably, the two sets of panels are slidably engaged in the two sets of grooves respectively.

[0012] Compared with the prior art, this utility model provides a gas preheater for a hydrogen fluoride reactor, which has the following advantages:

[0013] 1. The gas preheater for the hydrogen fluoride reactor uses an internal wall cleaning component that, through the synergistic action of a scraper ring and a swivel plate, effectively removes sticky deposits such as sulfates and silicates adhering to the inner wall of the gas preheater, restoring the smoothness of the inner wall, significantly improving heat transfer efficiency, reducing heat loss, and thus reducing overall energy consumption.

[0014] 2. The timely removal of scale from the gas preheater of this hydrogen fluoride reactor prevents localized overheating, reduces the risk of equipment damage caused by thermal stress, and extends the service life of the gas preheater. At the same time, the operation of the inner wall cleaning components reduces the safety hazards caused by scale buildup, providing a reliable guarantee for the continuous and stable operation of hydrogen fluoride production.

[0015] 3. The gas preheater of this hydrogen fluoride reactor has a smooth inner wall surface after cleaning, which reduces gas flow resistance and ensures smooth gas flow. This not only improves the preheating effect, but also optimizes the efficiency of the entire hydrogen fluoride production process, which helps to improve product quality and production scale. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the outer surface of the gas preheater of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the gas preheater of this utility model;

[0018] Figure 3 This is a schematic diagram of the drive motor of this utility model;

[0019] Figure 4 This is a schematic diagram of the rotating ring of this utility model;

[0020] Figure 5 This is a cross-sectional schematic diagram of the ring plate and guardrail of this utility model;

[0021] Figure 6 for Figure 4 A magnified view of part A in the diagram.

[0022] In the diagram: 1. Base; 2. Gas preheater; 3. Drive cylinder; 4. Flue; 5. Component plate; 6. Scraper ring; 7. Mounting cylinder; 8. Drive motor; 9. Linkage rod; 10. Swing plate; 11. Groove; 12. Ring plate; 13. Guardrail; 14. Sealing plate; 15. Rotating ring; 16. Connecting rod; 17. Scraper; 18. Embedded plate; 19. Stop bar. 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] Please see Figure 1-6 A gas preheater for a hydrogen fluoride reactor includes a base 1, a gas preheater 2 fixedly mounted on the top of the base 1, a drive cylinder 3 fixedly mounted on the inner wall of the bottom of the base 1, a flue duct 4 communicating with the gas preheater 2 fixedly mounted on the outer surface of the gas preheater 2, a component disk 5 slidably mounted inside the base 1, an installation cylinder 7 fixedly mounted on the bottom of the component disk 5, a drive motor 8 fixedly mounted inside the installation cylinder 7, and an annular plate 12 fixedly mounted on the outer wall of the base 1 near the top. It also includes:

[0025] An inner wall cleaning component is installed inside the gas preheater 2 and is used to clean the inner wall of the gas preheater 2.

[0026] The piston rod on the drive cylinder 3 slides into the gas preheater 2 and is fixedly connected to the bottom of the mounting cylinder 7.

[0027] A circular scraper ring 6 is fixed to the outer wall of the component disk 5 near the bottom. The outer wall of the scraper ring 6 is completely in contact with the inner wall of the gas preheater 2.

[0028] A ring-shaped guardrail 13 is fixedly connected to the top of the ring plate 12, and a sealing plate 14 for sealing the top of the gas preheater 2 is movably installed on the top of the guardrail 13.

[0029] The inner wall cleaning assembly includes a linkage rod 9, a swing plate 10, a groove 11, and a rotating ring 15. The linkage rod 9 is rotatably mounted on the top of the assembly disk 5. The output shaft of the drive motor 8 extends out of the top of the assembly disk 5 and is fixedly connected to the middle of the linkage rod 9. Both ends of the linkage rod 9 are fixedly connected to an integrated swing plate 10. The sides of the two sets of swing plates 10 that are close to each other are in contact with the outer wall of the assembly disk 5. The bottom of the two sets of swing plates 10 are in contact with the top of the scraper ring 6. The sides of the two sets of swing plates 10 that are opposite to each other are provided with grooves 11. A circular rotating ring 15 is rotatably mounted on the inner wall of the guardrail 13 near the top.

[0030] The inner wall cleaning assembly also includes connecting rods 16, scrapers 17, inserts 18, and stop rods 19. Two sets of symmetrical connecting rods 16 are fixedly connected to the inner walls on both sides of the rotating ring 15. Scrapers 17 are fixedly connected to the ends of the two sets of connecting rods 16 that are close to each other. Inserts 18 are fixedly connected to the sides of the two sets of scrapers 17 that are close to each other. Stop rods 19 are fixedly connected to both sides of the inserts 18 near the top.

[0031] The two sets of panels 18 are slidably engaged in the two sets of grooves 11 respectively.

[0032] Structural Description: Base 1: Serves as the basic support structure for the entire device, providing installation positions and stability for other components;

[0033] Gas preheater 2: Installed on top of base 1, it is the core equipment in the gas preheating process of hydrogen fluoride production, and its performance affects the stability and economy of the production process.

[0034] Drive cylinder 3: Fixed to the bottom inner wall of base 1, its piston rod slides into the gas preheater 2 to provide power to drive the movement of related components;

[0035] Flue duct 4: Fixed to the outer surface of gas preheater 2 and connected to gas preheater 2, used for gas flow;

[0036] Component plate 5: Slidably installed inside the gas preheater 2, serving to connect and support other components;

[0037] Scraper ring 6: It is fixedly installed on the outer wall of the component plate 5 near the bottom. Its outer wall is completely in contact with the inner wall of the gas preheater 2. It is used to scrape off the sticky scale on the inner wall of the gas preheater 2.

[0038] Mounting cylinder 7: It is fixedly installed inside scraper ring 6 and serves to connect and protect internal components;

[0039] Drive motor 8: Fixed inside the mounting cylinder 7, its output shaft extends rotatably out of the top of the component disk 5 to provide rotational power. This drive motor 8 is controlled by a remote control switch.

[0040] Linkage rod 9: Rotatably mounted on the top of component disk 5, with its middle part fixedly connected to the output shaft of drive motor 8, used to transmit rotational power;

[0041] Spinning plate 10: fixed to both ends of the linkage rod 9. The two sets of spinning plates 10 are close to each other on the side that is in contact with each other and are in contact with the outer wall of the component disk 5. The bottom of each set is in contact with the top of the scraper ring 6. The opposite sides of each set are provided with grooves 11, which are used to throw out sticky dirt during rotation.

[0042] Groove 11: It is formed on the opposite side of the two sets of swing plates 10, and is used to engage with the insert plate 18 to realize the linkage between the swing plate 10 and the scraper 17.

[0043] Ring plate 12: Fixed on the outer wall of the gas preheater 2 near the top, used to collect the sticky deposits thrown out;

[0044] Guardrail 13: It is fixed to the top of the ring plate 12 and serves as a protective barrier. At the same time, a rotating ring 15 is rotatably installed on its inner wall near the top.

[0045] Sealing plate 14: It is movably installed on the top of the guardrail 13 to seal the top of the gas preheater 2, and can be opened to remove sticky scale.

[0046] Rotating ring 15: It is circular and is rotatably installed on the inner wall of the guardrail 13 near the top, serving to support and stabilize the scraper 17;

[0047] Connecting rod 16: It is fixed to the inner walls of both sides of the rotating ring 15, and serves as a connection and support.

[0048] Scraper 17: Fixed to one end of the two sets of connecting rods 16 that are close to each other, and each side that is close to each other is fixed with a plate 18, which is used to further scrape off the sticky deposits on the inner wall of the gas preheater 2 during rotation.

[0049] Insert plate 18: It is fixed to one side of scraper 17 and is slidably engaged in the grooves 11 of the two sets of swing plates 10 to realize the linkage between swing plate 10 and scraper 17.

[0050] Stop bar 19: Fixed to both sides of the insert plate 18, used to limit the rotation range of the swing plate 10 and ensure stable linkage between the swing plate 10 and the scraper 17.

[0051] Working principle: When it is necessary to clean the sticky scale formed by residual sulfates, silicates and other impurities on the inner wall of the gas preheater 2, the drive cylinder 3 is started. The piston rod on the drive cylinder 3 is pushed upward. The mounting cylinder 7 is continuously pushed by the piston rod and slides upward in the base 1. The component plate 5 is pushed by the mounting cylinder 7, which drives the scraper ring 6 to push the sticky scale remaining on the inner wall of the gas preheater 2 upward. When the two sets of swing plates 10 slide to contact the scraper 17, the grooves 11 on the two sets of swing plates 10 gradually slide onto the two sets of insert plates 18. When the top of the swing plates 10 contacts the two sets of stop rods 19, the drive cylinder 3 is closed and the drive motor 8 is started. The output shaft of the drive motor 8 is used to clean the sticky scale formed by residual sulfates, silicates and other impurities on the inner wall of the gas preheater 2. The linkage rod 9 rotates on top of the component disk 5. As the two sets of swing plates 10 rotate with the linkage rod 9, they are engaged in the groove 11 through the insert plate 18, which drives the two sets of scrapers 17 to rotate synchronously. The swing plates 10 and scrapers 17 make circular motions on the top of the scraper ring 6 and the top of the gas preheater 2, respectively. During the high-speed sliding process, the swing plates 10 and scrapers 17 throw off the sticky deposits scraped up by the scraper ring 6. The sticky deposits are thrown into the ring plate 12 through the guardrail 13 and collected. The sticky deposits can be removed by opening the sealing plate 14. During the rotation of the two sets of scrapers 17, the rotating ring 15 is driven to rotate on the guardrail 13 through the two sets of connecting rods 16 to ensure the stability of the two sets of scrapers 17 during rotation.

[0052] 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. A gas preheater for a hydrogen fluoride reactor, comprising a base (1), wherein a gas preheater (2) is fixedly mounted on the top of the base (1), characterized in that: A drive cylinder (3) is fixedly installed on the bottom inner wall of the base (1), a flue pipe (4) communicating with the gas preheater (2) is fixedly provided on the outer surface of the gas preheater (2), a component plate (5) is slidably installed inside the base (1), an installation cylinder (7) is fixedly installed at the bottom of the component plate (5), a drive motor (8) is fixedly provided inside the installation cylinder (7), and an annular plate (12) is fixedly provided on the outer wall of the base (1) near the top. The base also includes: An inner wall cleaning assembly is provided inside the gas preheater (2) for cleaning the inner wall of the gas preheater (2).

2. The hydrogen fluoride reactor gas preheater according to claim 1, characterized in that: The piston rod of the drive cylinder (3) slides into the gas preheater (2) and is fixedly connected to the bottom of the mounting cylinder (7).

3. The hydrogen fluoride reactor gas preheater according to claim 1, characterized in that: The outer wall of the component disk (5) is fixed with a circular scraper ring (6) near the bottom. The outer wall of the scraper ring (6) is completely in contact with the inner wall of the gas preheater (2).

4. The gas preheater for a hydrogen fluoride reactor according to claim 1, characterized in that: The top of the ring plate (12) is fixedly connected to a ring-shaped guardrail (13), and a sealing plate (14) for sealing the top of the gas preheater (2) is movably installed on the top of the guardrail (13).

5. A gas preheater for a hydrogen fluoride reactor according to claim 3, characterized in that: The inner wall cleaning assembly includes a linkage rod (9), a swivel plate (10), a groove (11), and a rotating ring (15). The linkage rod (9) is rotatably mounted on the top of the assembly disk (5). The output shaft of the drive motor (8) extends out of the top of the assembly disk (5) and is fixedly connected to the middle of the linkage rod (9). Both ends of the linkage rod (9) are fixedly connected to an integrated swivel plate (10). The sides of the two sets of swivel plates (10) that are close to each other are in contact with the outer wall of the assembly disk (5). The bottom of the two sets of swivel plates (10) is in contact with the top of the scraper ring (6). The sides of the two sets of swivel plates (10) that are away from each other are provided with a groove (11). The inner wall of the guardrail (13) is rotatably mounted with a circular rotating ring (15) near the top.

6. A gas preheater for a hydrogen fluoride reactor according to claim 5, characterized in that: The inner wall cleaning assembly also includes connecting rods (16), scrapers (17), inserts (18) and stop rods (19). Two sets of symmetrical connecting rods (16) are fixedly connected to the inner walls on both sides of the rotating ring (15). Scrapers (17) are fixedly connected to the ends of the two sets of connecting rods (16) that are close to each other. Inserts (18) are fixedly connected to the sides of the two sets of scrapers (17) that are close to each other. Stop rods (19) are fixedly connected to both sides of the inserts (18) near the top.

7. A gas preheater for a hydrogen fluoride reactor according to claim 6, characterized in that: The two sets of panels (18) are respectively slidably engaged in the two sets of grooves (11).

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