Pipeline fixing structure for heating and ventilation waste gas treatment

By using a pipe fixing structure with a 316L stainless steel base and a polytetrafluoroethylene coating, combined with the design of clamps, screws, and eccentric wheels, the problem of traditional fixing supports being prone to failure in high-temperature and corrosive environments has been solved, achieving improved corrosion resistance and stability, and ensuring the safety and sealing of the pipeline.

CN223938925UActive Publication Date: 2026-02-24CHINA ELECTRONICS SYST ENG NO 2 CONSTR
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Patent Information

Application Number
CN202520811306.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-02-24
Estimated Expiration
2035-04-27

AI Technical Summary

Technical Problem

Traditional fixed supports are prone to structural failure in high-temperature, corrosive gas, and vibration environments due to material corrosion, thermal expansion stress, or vibration fatigue, posing safety hazards.

Method used

The pipe fixing structure adopts a 316L stainless steel base with a polytetrafluoroethylene coating, combined with the design of clamps, screws and eccentric wheels, and automatic adjustment by pressure sensors and electric cylinders to achieve stable pipe fixing and thermal stress release.

Benefits of technology

It improves the corrosion resistance and stability of the pipeline fixing structure, can adapt to thermal deformation, reduces the risk of structural failure, and ensures safety and sealing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of pipeline fixing, in particular to a pipeline fixing structure for heating and ventilation waste gas treatment. A pipeline fixing structure for heating and ventilation waste gas treatment comprises a pipeline, a lower extension pipe, an upper extension pipe and a connecting pipe, the rear side of the lower extension pipe is in sliding contact with the upper extension pipe, the connecting pipe is in sliding connection between the lower extension pipe and the upper extension pipe, and the front side of the lower extension pipe and the rear side of the upper extension pipe are in sliding contact with the pipeline. The pipeline, the lower extension pipe, the upper extension pipe and the connecting pipe adopt 316L stainless steel substrates, and the surfaces of the substrates are coated with polytetrafluoroethylene coatings. Through cooperation of the first clamping ring, the second clamping ring, the screw rod and the eccentric wheel, the effect of fixing the pipeline is achieved, the pipeline, the lower extension pipe, the upper extension pipe and the connecting pipe are made of 316L stainless steel base bodies, polytetrafluoroethylene coatings are sprayed on the surfaces, and the acid and alkali corrosion resistance is enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of pipe fixing, and in particular to a pipe fixing structure for HVAC exhaust gas treatment. Background Technology

[0002] Exhaust gas pipelines are an indispensable component of industrial production, playing a crucial role in effectively discharging industrial waste gases from production sites and reducing potential impacts on the environment and human health. In HVAC and industrial waste gas treatment systems, pipelines are exposed to high temperatures, corrosive gases, and vibration environments for extended periods. Traditional fixed supports are prone to structural failure due to material corrosion, thermal expansion stress, or vibration fatigue, posing safety hazards.

[0003] To address the aforementioned issues, a pipe fixing structure for HVAC exhaust gas treatment needs to be designed. Through structural optimization and material innovation, a pipe fixing solution that is highly stable, corrosion-resistant, and adaptable to thermal deformation can be provided. Utility Model Content

[0004] In order to overcome the shortcomings of traditional fixed supports that lead to structural failure due to material corrosion, thermal expansion stress or vibration fatigue, the technical problem of this utility model is to provide a pipe fixing structure for HVAC exhaust gas treatment.

[0005] The technical implementation scheme of this utility model is as follows: a pipe fixing structure for HVAC exhaust gas treatment, including a pipe, a lower extension pipe, an upper extension pipe, a connecting pipe, a clamping ring one, a clamping ring two, a screw, a pressure block, and an eccentric wheel. The upper extension pipe is slidably contacted on the rear side of the lower extension pipe, and a connecting pipe is slidably connected between the lower extension pipe and the upper extension pipe. The pipe is slidably contacted on the front side of the lower extension pipe and the rear side of the upper extension pipe. The pipe, the lower extension pipe, the upper extension pipe, and the connecting pipe are made of 316L stainless steel with a polytetrafluoroethylene coating on the surface. The clamping ring one is slidably contacted between the right side of the lower extension pipe and the right side of the upper extension pipe and the right side of the pipe. The clamping ring two is slidably contacted between the left side of the lower extension pipe and the left side of the upper extension pipe and the left side of the pipe. The lower part of the clamping ring one and the lower part of the clamping ring two on the same side are rotatably connected. A screw is slidably connected between the clamping ring one and the clamping ring two. A pressure block is slidably connected to the left side of the screw. An eccentric wheel is fixedly connected to the left side of the pressure block. The screw and the eccentric wheel are threadedly connected.

[0006] Optionally, it also includes protrusions, with two protrusions fixedly connected to the inner sides of the first and second clamping rings on the same side.

[0007] Optionally, it also includes rubber blocks and sealing rings. Rubber blocks are fixedly connected to the inner sides of the two protrusions on the same side, and sealing rings are fixedly connected to the front side of the lower extension pipe and the rear side of the upper extension pipe. The sealing rings are in contact with the pipe.

[0008] Optionally, it also includes filter cotton and a cover plate. Filter cotton is provided on the inner side of the middle of the rear pipe, and a cover plate is rotatably connected to the left side of the rear pipe. The filter cotton can be removed and replaced by opening the cover plate.

[0009] Optionally, it also includes a mounting base, a guide rail, a guide block, a ball joint connector, and a stud. The bottom of the two pipes is fixedly connected to the ball joint connector, the left side of the ball joint connector is threadedly connected to the stud, the bottom of the ball joint connector is fixedly connected to the guide block, the bottom of the guide block is slidably connected to the guide rail, and the bottom of the guide rail is fixedly connected to the mounting base.

[0010] Optionally, it also includes a pressure sensor, a controller, an electric cylinder, and a mounting block. A pressure sensor is installed on the top of the front pipe, an electric cylinder is fixedly connected to the bottom of the upper extension pipe, a controller is installed on the right side of the electric cylinder, the controller is electrically connected to the pressure sensor and the electric cylinder, a mounting block is fixedly connected to the bottom of the lower extension pipe, the telescopic shaft of the electric cylinder is fixedly connected to the mounting block, and multiple slots are provided on the mounting base.

[0011] Beneficial effects: 1. This utility model achieves the effect of fixing the pipe by cooperating with clamping ring one, clamping ring two, screw and eccentric wheel. The pipe, lower extension pipe, upper extension pipe and connecting pipe are made of 316L stainless steel base and the surface is sprayed with polytetrafluoroethylene coating to enhance the acid and alkali corrosion resistance.

[0012] 2. This utility model makes the pipe connection more secure through the cooperation of the protrusion, rubber block and sealing ring.

[0013] 3. The position of this device is adjusted by ball joint connector and stud, and then the device is fixed by mounting base.

[0014] 4. This utility model, through the cooperation of the lower extension pipe, the upper extension pipe and the connecting pipe, and through the cooperation of the pressure sensor, the controller, the electric cylinder and the mounting block, allows the pipe to release thermal stress when it is heated and pressure is generated. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the pipe, lower extension pipe, and clamping ring components of this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of the clamping ring one, clamping ring two, and screw components of this utility model.

[0017] Figure 3 This is a cross-sectional structural diagram of the lower extension tube, upper extension tube, and connecting tube of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the mounting base, guide rail, and guide block of this utility model.

[0019] The meanings of the reference numerals in the diagram are as follows: 1-pipe, 2-lower extension pipe, 201-upper extension pipe, 202-connecting pipe, 3-clamping ring one, 4-clamping ring two, 5-screw, 6-pressure block, 7-eccentric wheel, 8-protrusion, 9-rubber block, 91-sealing ring, 10-filter cotton, 11-cover plate, 12-mounting base, 13-guide rail, 14-guide block, 15-ball connector, 151-stud, 16-pressure sensor, 17-controller, 18-electric cylinder, 19-mounting block. Detailed Implementation

[0020] Example: A pipe fixing structure for HVAC exhaust gas treatment, such as Figures 1-4 As shown, the system includes pipe 1, lower extension pipe 2, upper extension pipe 201, connecting pipe 202, clamping ring 3, clamping ring 4, screw 5, pressure block 6, and eccentric wheel 7. The upper extension pipe 201 is slidably contacted at the rear side of the lower extension pipe 2, and the connecting pipe 202 is slidably connected between the lower extension pipe 2 and the upper extension pipe 201. Pipe 1 is slidably contacted at the front side of the lower extension pipe 2 and the rear side of the upper extension pipe 201. Pipe 1, lower extension pipe 2, upper extension pipe 201, and connecting pipe 202 are made of 316L stainless steel with a surface coating of polyurethane. The PTFE coating enhances the resistance to acid and alkali corrosion. The right side of the lower extension pipe 2 and the right side of the upper extension pipe 201 are in sliding contact with the right side of the pipe 1, and the left side of the lower extension pipe 2 and the left side of the upper extension pipe 201 are in sliding contact with the left side of the pipe 1, and the lower part of the clamping ring 1 and the lower part of the clamping ring 2 on the same side are rotatably connected. The clamping ring 1 and the clamping ring 2 are slidably connected by a screw 5. The left side of the screw 5 is slidably connected to a pressure block 6. The left side of the pressure block 6 is welded with an eccentric wheel 7. The screw 5 and the eccentric wheel 7 are threadedly connected.

[0021] like Figure 1 and Figure 2 As shown, it also includes protrusions 8, and two protrusions 8 are fixedly connected to the inner side of the clamping ring 3 and the inner side of the clamping ring 4 on the same side.

[0022] like Figure 2 and Figure 3 As shown, it also includes a rubber block 9 and a sealing ring 91. The rubber block 9 is fixedly connected to the inner side of the two protrusions 8 on the same side. The sealing ring 91 is fixedly connected to the front side of the lower extension pipe 2 and the rear side of the upper extension pipe 201. The sealing ring 91 is in contact with the pipe 1.

[0023] like Figure 3 and Figure 4 As shown, it also includes filter cotton 10 and cover plate 11. Filter cotton 10 is provided on the inner side of the middle part of the rear pipe 1. Cover plate 11 is rotatably connected to the left side of the rear pipe 1. The filter cotton 10 can be taken out and replaced by opening the cover plate 11.

[0024] like Figure 1 and Figure 4As shown, it also includes a mounting base 12, a guide rail 13, a guide block 14, a ball connector 15, and a stud 151. Ball connectors 15 are welded to the bottom of the two pipes 1. The left side of the ball connector 15 is threaded with a stud 151. The bottom of the ball connector 15 is fixedly connected to the guide block 14. The bottom of the guide block 14 is slidably connected to the guide rail 13. The bottom of the guide rail 13 is fixedly connected to the mounting base 12.

[0025] like Figure 1 and Figure 4 As shown, it also includes a pressure sensor 16, a controller 17, an electric cylinder 18, and a mounting block 19. The pressure sensor 16 is installed on the top of the front pipe 1, the electric cylinder 18 is installed on the bottom of the upper extension pipe 201, the controller 17 is installed on the right side of the electric cylinder 18, the controller 17 is electrically connected to the pressure sensor 16 and the electric cylinder 18, the mounting block 19 is fixedly connected to the bottom of the lower extension pipe 2, the telescopic shaft of the electric cylinder 18 is fixedly connected to the mounting block 19, and multiple slots are opened on the mounting base 12.

[0026] When it is necessary to fix pipe 1, place this device in the corresponding position. First, combine the front pipe 1 with the lower extension pipe 2. Then, turn the eccentric wheel 7 clockwise to move the pressure block 6 to the right, so that clamping ring 3 and clamping ring 4 are squeezed closer to the center end until pipe 1 and lower extension pipe 2 are clamped. Then, fasten the eccentric wheel 7. Then, clamp the upper extension pipe 201 with the rear pipe 1. The protrusions 8 on the inner side of clamping ring 3 and clamping ring 4 prevent the sliding clamping ring 3 and clamping ring 4 from sliding back and forth. Meanwhile, the rubber block 9 inside the protrusion 8 is compressed, and the sealing rings 91 on the front side of the lower extension tube 2 and the rear side of the upper extension tube 201 come into contact with the pipe 1 and are compressed, making the pipe 1 and the lower extension tube 2 more tightly connected with the pipe 1 and the upper extension tube 201. The mounting seat 12 is adjusted to a suitable position through the ball head connector 15, and the device is fixed by the slots opened on the two mounting seats 12. Then, the two studs 151 are turned clockwise to lock the ball head connector 15 and fix the pipe 1.

[0027] When pipe 1 is heated and generates pressure, pressure sensor 16 transmits a signal to controller 17. Controller 17 controls electric cylinder 18 to push mounting block 19 forward, causing upper extension pipe 201 and lower extension pipe 2 to move away from the center end. At the same time, pipes 1 on both sides drive guide blocks 14 to move away from the center end through guide rail 13, so that pipe 1 releases thermal stress. After the pressure of pipe 1 returns to normal, pressure sensor 16 transmits a signal to controller 17, and controller 17 controls electric cylinder 18 to push mounting block 19 backward to reset.

Claims

1. A pipe fixing structure for treating HVAC exhaust gases, characterized in that, The system includes a pipe (1), a lower extension pipe (2), an upper extension pipe (201), a connecting pipe (202), a clamping ring one (3), a clamping ring two (4), a screw (5), a pressure block (6), and an eccentric wheel (7). The lower extension pipe (2) has a sliding contact with the upper extension pipe (201) on its rear side. The lower extension pipe (2) and the upper extension pipe (201) are slidably connected by the connecting pipe (202). The lower extension pipe (2) has a sliding contact with the pipe (1) on its front side and the upper extension pipe (201) on its rear side. The pipe (1), lower extension pipe (2), upper extension pipe (201), and connecting pipe (202) are made of 316L stainless steel. The surface is coated with polytetrafluoroethylene. The right side of the lower extension pipe (2) and the right side of the upper extension pipe (201) are in sliding contact with the right side of the pipe (1) with a clamping ring one (3). The left side of the lower extension pipe (2) and the left side of the upper extension pipe (201) are in sliding contact with the left side of the pipe (1) with a clamping ring two (4). The lower part of the clamping ring one (3) and the lower part of the clamping ring two (4) on the same side are rotatably connected. The clamping ring one (3) and the clamping ring two (4) are slidably connected with a screw (5). The left side of the screw (5) is slidably connected with a pressure block (6). The left side of the pressure block (6) is fixedly connected with an eccentric wheel (7). The screw (5) and the eccentric wheel (7) are threadedly connected.

2. The pipe fixing structure for HVAC exhaust gas treatment as described in claim 1, characterized in that, It also includes protrusions (8), and two protrusions (8) are fixedly connected to the inner side of the first clamping ring (3) and the inner side of the second clamping ring (4) on the same side.

3. The pipe fixing structure for HVAC exhaust gas treatment as described in claim 2, characterized in that, It also includes a rubber block (9) and a sealing ring (91). The inner sides of the two protrusions (8) on the same side are fixedly connected with rubber blocks (9). The front side of the lower extension pipe (2) and the rear side of the upper extension pipe (201) are fixedly connected with sealing rings (91). The sealing rings (91) are in contact with the pipe (1).

4. A pipe fixing structure for HVAC exhaust gas treatment as described in claim 3, characterized in that, It also includes filter cotton (10) and cover plate (11). The filter cotton (10) is provided on the inner side of the middle of the pipe (1) on the rear side. The cover plate (11) is rotatably connected to the left side of the pipe (1) on the rear side. The filter cotton (10) can be taken out and replaced by opening the cover plate (11).

5. A pipe fixing structure for HVAC exhaust gas treatment as described in claim 4, characterized in that, It also includes a mounting base (12), a guide rail (13), a guide block (14), a ball connector (15), and a stud (151). The bottom of the two pipes (1) is fixedly connected to the ball connector (15), the left side of the ball connector (15) is threadedly connected to the stud (151), the bottom of the ball connector (15) is fixedly connected to the guide block (14), the bottom of the guide block (14) is slidably connected to the guide rail (13), and the bottom of the guide rail (13) is fixedly connected to the mounting base (12).

6. A pipe fixing structure for HVAC exhaust gas treatment as described in claim 5, characterized in that, It also includes a pressure sensor (16), a controller (17), an electric cylinder (18), and a mounting block (19). The pressure sensor (16) is installed on the top of the front pipe (1). The electric cylinder (18) is fixedly connected to the bottom of the upper extension pipe (201). The controller (17) is installed on the right side of the electric cylinder (18). The controller (17) is electrically connected to the pressure sensor (16) and the electric cylinder (18). The mounting block (19) is fixedly connected to the bottom of the lower extension pipe (2). The telescopic shaft of the electric cylinder (18) is fixedly connected to the mounting block (19). Multiple slots are provided on the mounting base (12).