Acid and alkali waste gas treatment teflon corrosion resistant pipeline

Abstract

This utility model discloses a Teflon-coated anti-corrosion pipe for treating acid and alkali waste gas, belonging to the technical field of waste gas treatment pipes. It includes an anti-corrosion branch pipe, an anti-corrosion merging pipe, a filter assembly installed between the branch pipe and the merging pipe for filtering acid and alkali waste gas, and an anti-loosening mechanism used in conjunction with the filter assembly. The filter assembly includes a filter cartridge connected to the branch outlet of the branch pipe and a filter protection cartridge installed outside the filter cartridge. The filter cartridge filters the acid and alkali waste gas, and the filtered waste gas is then discharged from the merging inlet of the merging pipe through the filter protection cartridge. This utility model effectively filters waste gas, facilitates maintenance, reduces clogging of the filter structure, ensures effective waste gas purification, and allows the waste gas treatment equipment to operate normally without shutting down during maintenance, thus guaranteeing the efficiency of acid and alkali waste gas treatment.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment pipeline technology, specifically a Teflon-coated anti-corrosion pipeline for acid and alkali waste gas treatment. Background Technology

[0002] Acidic and alkaline waste gases mainly originate from the production processes of industries such as chemical, electronics, metallurgy, electroplating, textile (chemical fiber), food, and machinery manufacturing. Their emission indoors is harmful to human health, and their emission outdoors is harmful to the atmosphere, soil, plants, and buildings. Creating a good living space for humans and the environment, and properly treating acidic and alkaline gases in waste gases is a necessary measure to control air pollution. Acidic and alkaline waste gases are usually treated and discharged through spray towers, and the discharge process requires the use of conveying pipelines.

[0003] As in the prior art, Chinese utility model publication CN222151298U discloses a factory waste gas treatment pipeline, relating to the field of waste gas treatment pipeline technology. It includes: a pipe body; a treatment box is provided on one side of the pipe body; baffles are fixedly connected to both sides of the inner wall of the treatment box; limit grooves are provided on both sides of the inner wall of the baffles; a filter plate is provided on the inner wall of the treatment box; limit blocks are fixedly connected to the front and rear end faces of the filter plate; a cleaning device is provided on one side of the baffles and located on the inner wall of the treatment box; a first motor is fixedly connected to one side of the support frame; fan blades are fixedly connected to the output end of the first motor; and a box cover is provided on top of the treatment box.

[0004] The above-mentioned waste gas treatment pipelines reveal that existing technologies have the following drawbacks: waste gas treatment pipelines do not have the function of filtering waste gas, and some pipelines equipped with filter plates are prone to impurities accumulating on the surface of the filter plates, making maintenance inconvenient. Long-term use will cause the filter plates to become clogged, affecting the subsequent purification of waste gas. Moreover, during maintenance, the treatment equipment needs to be stopped, affecting the efficiency of acid and alkali waste gas treatment. Therefore, we need to propose a Teflon-coated anti-corrosion pipeline for acid and alkali waste gas treatment. Utility Model Content

[0005] The purpose of this utility model is to provide a Teflon-coated anti-corrosion pipe for treating acid and alkali waste gas, which can filter waste gas, facilitate maintenance, reduce the occurrence of filter blockage, ensure the purification effect of waste gas, and allow the waste gas treatment equipment to operate normally without shutting down during maintenance, thus ensuring the efficiency of acid and alkali waste gas treatment and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides: a Teflon-coated anti-corrosion pipe for treating acid and alkali waste gas, comprising an anti-corrosion branch pipe, an anti-corrosion merging pipe, a filter assembly installed between the anti-corrosion branch pipe and the anti-corrosion merging pipe for filtering acid and alkali waste gas; and an anti-loosening mechanism used in conjunction with the filter assembly; the filter assembly includes a filter cylinder connected to the branch outlet of the anti-corrosion branch pipe, and a filter protection cylinder installed outside the filter cylinder; the acid and alkali waste gas is filtered through the filter cylinder, and the filtered waste gas is discharged from the merging inlet of the anti-corrosion merging pipe through the filter protection cylinder; the anti-loosening mechanism includes a limiting ring installed at the bottom of the filter protection cylinder, and an arc-shaped plate and a positioning rod installed on the limiting ring; the locking position of the arc-shaped plate and the positioning rod is controlled by the limiting ring, thereby fixing the position of the filter protection cylinder.

[0007] Preferably, the filter assembly includes: a mounting cylinder connected to the end of the filter cylinder, the end of the mounting cylinder being provided with a connecting portion, and the diversion outlet of the corrosion-resistant diversion pipe being provided with a mounting joint that mates with the outer surface of the connecting portion.

[0008] Preferably, one end of the filter protection cylinder is threaded to the outer surface of the mounting joint, and the outer surface of the mounting joint is provided with a sealing ring that mates with the end of the filter protection cylinder.

[0009] Preferably, the filter protection cylinder is slidably connected to the surface of the anti-corrosion confluence pipe, a sealing ring is provided at the bottom of the inner wall of the filter protection cylinder, and a limiting ring and a sealing ring that cooperate with the sealing ring are provided at the end of the anti-corrosion confluence pipe.

[0010] Preferably, the anti-loosening mechanism includes: an annular locking block connected to the bottom end of the filter protective cylinder, a limiting ring rotatably mounted on the surface of the annular locking block, a fixing part provided at the bottom of the limiting ring, and a connecting rod movably mounted on the surface of the fixing part.

[0011] Preferably, the end of the connecting rod is connected to an arc-shaped plate for installing a positioning plug, the surface of the connecting rod is provided with an anti-loosening spring that acts on the arc-shaped plate, and the surface of the anti-corrosion confluence pipe is provided with a positioning hole that cooperates with the positioning plug.

[0012] Preferably, a control valve for controlling the airflow of the filter cartridge is installed on the surface of the anti-corrosion diversion pipe, and a three-way valve is provided on the surface of the anti-corrosion merging pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model features a split-type filter assembly design, consisting of a filter cartridge and a filter protection cartridge with related connecting structures. This allows for easy disassembly and replacement of the filter material. Simultaneously, the corrosion-resistant diversion pipe and the merging pipe are equipped with control valves and three-way valves respectively, enabling disassembly and maintenance without affecting system operation. This significantly reduces downtime and improves work efficiency. Furthermore, the anti-loosening mechanism, through the mechanical linkage of the limit ring, arc plate, and positioning rod, combined with the elastic clamping effect of the anti-loosening spring, ensures the stability of the pipe connection, maintaining stability even in vibration environments and effectively avoiding the risk of leakage due to loosening. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the filter cartridge structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the filter protection cylinder structure of this utility model.

[0019] In the diagram: 1. Corrosion-resistant diversion pipe; 2. Installation joint; 3. Sealing ring; 4. Control valve; 5. Filter cartridge; 6. Mounting cylinder; 7. Connecting part; 8. Corrosion-resistant merging pipe; 9. Limiting ring; 10. Sealing ring; 11. Positioning hole; 12. Filter protection cylinder; 13. Sealing ring; 14. Annular locking block; 15. Limiting ring; 16. Fixing part; 17. Connecting rod; 18. Arc plate; 19. Positioning rod; 20. Anti-loosening spring. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4This utility model provides: a Teflon-coated anti-corrosion pipe for treating acid and alkali waste gas, including an anti-corrosion diversion pipe 1, an anti-corrosion merging pipe 8, a filter assembly installed between the anti-corrosion diversion pipe 1 and the anti-corrosion merging pipe 8 for filtering acid and alkali waste gas; and an anti-loosening mechanism used in conjunction with the filter assembly; the filter assembly includes a filter cylinder 5 connected to the diversion outlet of the anti-corrosion diversion pipe 1, and a filter protection cylinder 12 installed outside the filter cylinder 5; the filter cylinder 5 filters the acid and alkali waste gas, and the filtered waste gas enters the exhaust gas from the merging inlet of the anti-corrosion merging pipe 8 through the filter protection cylinder 12; the anti-loosening mechanism includes a limiting ring 15 installed at the bottom of the filter protection cylinder 12, and an arc plate 18 and a positioning rod 19 installed on the limiting ring 15; the limiting ring 15 controls the locking position of the arc plate 18 and the positioning rod 19, thereby fixing the position of the filter protection cylinder 12.

[0022] It is worth noting that through the coordinated arrangement of components such as the anti-corrosion diversion pipe 1, the anti-corrosion merging pipe 8, the filter assembly, and the anti-loosening mechanism, and the split-type filter assembly design, which consists of a filter cartridge and a filter protection cartridge connected by related structures, the filter material can be easily disassembled and replaced. At the same time, the anti-corrosion diversion pipe and the merging pipe are equipped with control valves and three-way valves respectively, which can be disassembled and maintained without affecting the operation of the system, greatly reducing downtime and improving work efficiency. Furthermore, the anti-loosening mechanism, through the mechanical linkage of the limit ring, the arc plate, and the positioning rod, combined with the elastic clamping effect of the anti-loosening spring, ensures the stability of the pipe connection, which remains stable even in a vibration environment, effectively avoiding the risk of leakage due to loosening.

[0023] Specifically, the filter assembly includes: a mounting cylinder 6 connected to the end of the filter cartridge 5, the end of the mounting cylinder 6 being provided with a connecting part 7, and the diversion outlet of the anti-corrosion diversion pipe 1 being provided with a mounting connector 2 that mates with the outer surface of the connecting part 7. One end of the filter protection cylinder 12 is threaded to the outer surface of the mounting connector 2, and the outer surface of the mounting connector 2 is provided with a sealing ring 3 that mates with the end of the filter protection cylinder 12.

[0024] Furthermore, the installation joint 2 is a connecting structure for installing the filter protection cylinder 12 and the filter cylinder 5. The filter cylinder 5 filters the exhaust gas inside the pipeline. The installation cylinder 6 and the connecting part 7 are structures for installing the filter cylinder 5. The connecting part 7 is a connecting structure for connecting the inner wall of the installation joint 2, so that the exhaust gas diverted by the anti-corrosion diversion pipe 1 must pass through the filter cylinder 5 for filtration. The cooperation between the sealing ring 3 and the filter protection cylinder 12 further improves the sealing performance of the pipeline and prevents leakage.

[0025] In addition, the filter protection cylinder 12 is slidably connected to the surface of the anti-corrosion confluence pipe 8, and a sealing ring 13 is provided at the bottom of the inner wall of the filter protection cylinder 12. The end of the anti-corrosion confluence pipe 8 is provided with a limiting ring 9 and a sealing ring 10 that cooperate with the sealing ring 13.

[0026] The sealing ring 13 and the sealing ring 10 work together to further improve the sealing effect of the connection between the filter protection cylinder 12 and the anti-corrosion confluence pipe 8, effectively reducing the possibility of leakage. The limiting ring 9 works with the inner wall of the filter protection cylinder 12 to play a limiting and sealing role in the connection.

[0027] The anti-loosening mechanism includes: an annular locking block 14 connected to the bottom end of the filter protective cylinder 12; a limiting ring 15 rotatably mounted on the surface of the annular locking block 14; a fixing part 16 provided at the bottom of the limiting ring 15; and a connecting rod 17 movably mounted on the surface of the fixing part 16. An arc-shaped plate 18 for mounting a positioning insert 19 is connected to the end of the connecting rod 17; an anti-loosening spring 20 acting on the arc-shaped plate 18 is provided on the surface of the connecting rod 17; and a positioning hole 11 that mates with the positioning insert 19 is provided on the surface of the corrosion-resistant confluence pipe 8.

[0028] The annular locking block 14 is a structure that is installed in conjunction with the limiting ring 15, allowing the limiting ring 15 to rotate and adjust the position of the positioning rod 19 on the arc plate 18, thereby improving the accuracy of the fit between the positioning rod 19 and the positioning hole 11. The fixing part 16 is used to install the connecting rod 17, thereby connecting and restricting the position of the arc plate 18 and the positioning rod 19. The anti-loosening spring 20 is set on the surface of the connecting rod 17, which can act on the arc plate 18 to insert the positioning rod 19 into the inner wall of the positioning hole 11, thereby ensuring the stability of the filter protection cylinder 12 installation, and maintaining a stable effect even in a vibration environment.

[0029] The surface of the anti-corrosion diversion pipe 1 is equipped with a control valve 4 to control the airflow through the filter cartridge 5, and the surface of the anti-corrosion merging pipe 8 is equipped with a three-way valve. The end of the anti-corrosion diversion pipe 1 is connected to an acid / alkali waste gas inlet device, and the end of the anti-corrosion merging pipe 8 is connected to a waste gas treatment device. The anti-corrosion diversion pipe 1, the anti-corrosion merging pipe 8, and the filter cartridge 12 are made of Teflon anti-corrosion pipes. Teflon (polytetrafluoroethylene) has significant advantages in acid / alkali waste gas treatment pipeline systems due to its excellent chemical stability, corrosion resistance, and high-temperature resistance. Teflon pipes are flexible, impact-resistant, and can adapt to a certain degree of vibration and deformation. Combined with an optimized sealing structure, it can effectively prevent waste gas leakage. Furthermore, Teflon material is non-toxic and non-polluting, meeting food-grade and pharmaceutical-grade application standards, and will not release harmful substances during waste gas treatment, ensuring safe emissions.

[0030] During disassembly, close the corresponding filter channel ventilation control valve 4 and three-way valve as needed to ensure system operation while performing maintenance; pull the connecting rod 17 and rotate the limit ring 15 to remove the positioning rod 19 on the surface of the arc plate 18 from the positioning hole 11, releasing the limiting effect on the filter protection cylinder 12, and rotate the filter protection cylinder 12 to move it onto the anti-corrosion confluence pipe 8, and rotate the mounting cylinder 6 to disassemble and replace the filter cylinder 5. After replacement, reset the filter protection cylinder 12 and the positioning rod 19. After completion, reopen the control valve 4 and the three-way valve for normal operation.

[0031] 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 Teflon-coated anti-corrosion pipe for treating acid and alkali waste gas, characterized in that, include: Corrosion-resistant diversion pipe (1), corrosion-resistant merging pipe (8), and a filter assembly installed between the corrosion-resistant diversion pipe (1) and the corrosion-resistant merging pipe (8) for filtering acid and alkali waste gas; as well as Anti-loosening mechanism used in conjunction with the filter assembly; The filter assembly includes a filter cylinder (5) connected to the outlet of the anti-corrosion diversion pipe (1) and a filter protection cylinder (12) installed outside the filter cylinder (5); the acid and alkaline waste gas is filtered through the filter cylinder (5), and the filtered waste gas is discharged from the confluence inlet of the anti-corrosion confluence pipe (8) through the filter protection cylinder (12). The anti-loosening mechanism includes a limiting ring (15) installed at the bottom of the filter protection cylinder (12), and an arc plate (18) and a positioning rod (19) installed on the limiting ring (15); the locking position of the arc plate (18) and the positioning rod (19) is controlled by the limiting ring (15), thereby fixing the position of the filter protection cylinder (12).

2. The Teflon-coated anti-corrosion pipe for acid and alkali waste gas treatment according to claim 1, characterized in that: The filter assembly includes: a mounting cylinder (6) connected to the end of the filter cylinder (5), a connecting part (7) provided at the end of the mounting cylinder (6), and a mounting connector (2) that fits on the outer surface of the connecting part (7) at the diversion outlet of the anti-corrosion diversion pipe (1).

3. The Teflon-coated anti-corrosion pipe for acid and alkali waste gas treatment according to claim 2, characterized in that: One end of the filter protection cylinder (12) is threaded to the outer surface of the mounting joint (2), and the outer surface of the mounting joint (2) is provided with a sealing ring (3) that mates with the end of the filter protection cylinder (12).

4. The Teflon-coated anti-corrosion pipe for acid and alkali waste gas treatment according to claim 3, characterized in that: The filter protection cylinder (12) is slidably connected to the surface of the anti-corrosion confluence pipe (8). A sealing ring (13) is provided at the bottom of the inner wall of the filter protection cylinder (12). A limiting ring (9) and a sealing ring (10) that cooperate with the sealing ring (13) are provided at the end of the anti-corrosion confluence pipe (8).

5. The Teflon-coated anti-corrosion pipe for acid and alkali waste gas treatment according to claim 1, characterized in that: The anti-loosening mechanism includes: an annular locking block (14) connected to the bottom end of the filter protective cylinder (12), a limiting ring (15) rotatably mounted on the surface of the annular locking block (14), a fixing part (16) provided at the bottom of the limiting ring (15), and a connecting rod (17) movably mounted on the surface of the fixing part (16).

6. The Teflon-coated anti-corrosion pipe for acid and alkali waste gas treatment according to claim 5, characterized in that: The end of the connecting rod (17) is connected to an arc plate (18) for installing a positioning plug (19). The surface of the connecting rod (17) is provided with an anti-loosening spring (20) that acts on the arc plate (18). The surface of the anti-corrosion confluence pipe (8) is provided with a positioning hole (11) that cooperates with the positioning plug (19).

7. The Teflon-coated anti-corrosion pipe for acid and alkali waste gas treatment according to claim 1, characterized in that: The surface of the anti-corrosion diversion pipe (1) is equipped with a control valve (4) for controlling the air flow of the filter cylinder (5), and the surface of the anti-corrosion merging pipe (8) is equipped with a three-way valve.

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