Anti-condensation heat preservation composite fiber fabric air pipe

By employing an intermediate and outer layer design in the ductwork, combined with electric heating tape and deflector plates, the problems of wear resistance and heat insulation of the ductwork in high wind speed environments are solved, extending its service life and improving the building's aesthetics and health and safety.

CN224079740UActive Publication Date: 2026-04-03WENDA (SUZHOU) FRESH AIR TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-13
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing anti-condensation insulation composite fiber fabric air ducts are prone to wear and tear under high wind speed and high pressure environments, and the anti-condensation insulation structure has not been improved, resulting in mold, peeling and flaking on the walls, affecting the building's aesthetics and service life, and may also endanger human health.

Method used

The design features a columnar duct with a fixed connection between the outer wall and the middle and outer layers. The middle layer contains an electric heating tape for insulation and wear resistance, while the inner wall is equipped with a baffle plate and fastening mechanism. Combined with flange connections, it facilitates installation and maintenance, and enhances structural strength and durability.

Benefits of technology

It achieves wear resistance and heat insulation of air ducts in high wind speed environments, extends service life, avoids condensation and icing, and enhances building aesthetics and health and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fiber fabric air pipes, and discloses an anti-condensation heat preservation composite fiber fabric air pipe which comprises a cylindrical air pipe body, a middle layer is fixedly connected to the outer wall of the cylindrical air pipe body, an electric tracing band is fixedly connected to the interior of the middle layer, and an outer layer is fixedly connected to the outer wall of the middle layer. An air inlet is formed in the right side of the cylindrical air pipe, a plurality of flow guide plates are fixedly connected to the inner wall of the cylindrical air pipe, a flange is fixedly connected to the left side of the cylindrical air pipe, and a plurality of ventilation holes are formed in the bottom of the cylindrical air pipe. According to the utility model, air enters the cylindrical air pipe through the air inlet, stably flows under the action of the guide plate and is exhausted through the ventilation holes, so that effective air supply is realized, the fastening mechanism on the outer wall of the cylindrical air pipe and the internal electric tracing band jointly preserve heat, and the electric tracing band on the outer wall of the middle layer also enhances the wear resistance and prolongs the service life of the cylindrical air pipe.
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Description

Technical Field

[0001] This utility model relates to the field of fiber fabric air duct technology, and in particular to anti-condensation and heat-insulating composite fiber fabric air duct. Background Technology

[0002] It primarily relies on two air outlet modes: fiber permeation and jet spray. Air is permeated through fibers along the entire duct wall, and jetted through multiple rows of evenly distributed, designed small holes, ensuring uniform air distribution to every corner and achieving ideal overall uniform airflow. Utilizing a surface-type air outlet mode, it boasts a large air outlet area, high air volume, and low air velocity, eliminating the feeling of drafts and providing a uniform and comfortable airflow indoors. The fiber permeation of cool air along the entire duct wall creates a cool air layer on the outside, resulting in virtually no temperature difference between the inside and outside of the duct, effectively solving the condensation problem. No duct insulation is required, and it is easy to disassemble and clean, allowing for easy wiping and cleaning of the ducts. This improves indoor air quality and meets health and environmental protection requirements.

[0003] Currently available anti-condensation insulation composite fiber fabric ducts mainly consist of an insulation layer, an outer protective layer, and connecting components. They can ensure even air distribution and prevent uneven local heating and cooling. Their anti-condensation function prevents condensation dripping, protecting decorations and indoor items. However, compared to metal ducts, they have lower strength and are prone to wear and tear under long-term high wind speed and high pressure environments. Improper installation or external impacts can also damage them. To address these issues, existing technologies only select high-strength, wear-resistant fiber materials for the base fabric based on actual usage environment and pressure / wind speed requirements, and take protective measures for vulnerable areas. They do not improve the anti-condensation insulation structure of the ducts, leading to mold, peeling, and flaking on walls, and deformation and damage to ceilings. This affects the aesthetics and lifespan of buildings and can also harm human health, failing to meet usage requirements. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides an anti-condensation and heat-insulating composite fiber fabric air duct, which aims to improve the existing technology that does not improve the anti-condensation and heat-insulating structure of the air duct, resulting in mold, peeling and flaking of the walls, deformation and damage of the ceiling, affecting the aesthetics and service life of the building, and also causing harm to human health.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an anti-condensation and heat-insulating composite fiber fabric air duct, comprising a cylindrical air duct, an intermediate layer fixedly connected to the outer wall of the cylindrical air duct, an electric heating tape fixedly connected to the inside of the intermediate layer, an outer layer fixedly connected to the outer wall of the intermediate layer, an air inlet on the right side of the cylindrical air duct, multiple guide plates fixedly connected to the inner wall of the cylindrical air duct, a flange fixedly connected to the left side of the cylindrical air duct, multiple ventilation holes on the bottom of the cylindrical air duct, and a fastening mechanism provided on the outer wall of the guide plate for fixing the cylindrical air duct.

[0006] As a further description of the above technical solution:

[0007] The fastening mechanism includes a lower locking block, a rotating block rotatably connected to the rear top of the lower locking block, an upper locking block rotatably connected to the top of the rotating block, a rotating shaft rotatably connected to the front middle of the lower locking block, a fixing screw rotatably connected to the outer wall of the rotating shaft, and a nut threadedly connected to the middle of the outer wall of the fixing screw.

[0008] As a further description of the above technical solution:

[0009] A rubber pad is fixedly connected to the adjacent side of the guide plate.

[0010] As a further description of the above technical solution:

[0011] A support ring is fixedly connected to the middle of the outer wall of the cylindrical air duct.

[0012] As a further description of the above technical solution:

[0013] Two lifting rings are fixedly connected to the front and rear sides of the outer wall of the support ring.

[0014] As a further description of the above technical solution:

[0015] The top of the lifting ring has a through hole.

[0016] As a further description of the above technical solution:

[0017] The rear top of the lower locking block is rotatably connected to a rotating shaft.

[0018] As a further description of the above technical solution:

[0019] A washer is slidably connected to the middle of the outer wall of the fixing screw.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, air enters the columnar duct through the air inlet, flows smoothly under the action of the guide plate, and is discharged through the ventilation hole to achieve effective air supply. The fastening mechanism on the outer wall of the columnar duct and the internal electric heating tape work together to keep it warm. The electric heating tape on the outer wall of the middle layer also enhances wear resistance and extends the service life of the columnar duct.

[0022] 2. In this utility model, in order to connect the columnar air duct, the lower clamping block at the bottom of the flange is fixed, the upper clamping block is clamped on the outer wall of the top of the flange, and the fixing screw with the clamping block is rotated to the outer wall of the flange by the limiting of the rotating block, and then fixed with the nut, so as to achieve quick connection and improve work efficiency. Attached Figure Description

[0023] Figure 1 This is a perspective view of the front side of the cylindrical air duct of the anti-condensation and heat-insulating composite fiber fabric air duct proposed in this utility model.

[0024] Figure 2 This is a structural diagram of the lower clamping block of the anti-condensation and heat-insulating composite fiber fabric air duct proposed in this utility model;

[0025] Figure 3 This is a structural diagram of the outer layer of the anti-condensation and heat-insulating composite fiber fabric air duct proposed in this utility model;

[0026] Figure 4 This is a diagram illustrating the support ring structure of the anti-condensation and heat-insulating composite fiber fabric air duct proposed in this utility model.

[0027] Figure 5 This is a schematic diagram of the ventilation hole structure of the anti-condensation and heat-insulating composite fiber fabric air duct proposed in this utility model.

[0028] Legend:

[0029] 1. Columnar air duct; 2. Fastening mechanism; 201. Lower clamping block; 202. Rotating block; 203. Upper clamping block; 204. Rotating shaft; 205. Fixing screw; 206. Nut; 3. Intermediate layer; 4. Electric heating tape; 5. Outer layer; 6. Air inlet; 7. Guide plate; 8. Flange; 9. Ventilation hole; 10. Rubber gasket; 11. Support ring; 12. Lifting ring; 13. Perforation; 14. Rotating shaft; 15. Gasket. Detailed Implementation

[0030] 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.

[0031] Please see the appendix Figure 1 - Appendix Figure 3 This utility model provides an embodiment of an anti-condensation and heat-insulating composite fiber fabric air duct, comprising a cylindrical air duct 1. An intermediate layer 3 is fixedly connected to the outer wall of the cylindrical air duct 1. This intermediate layer 3 not only serves as reinforcement but also provides additional heat insulation. An electric heating tape 4 is fixedly connected inside the intermediate layer 3, providing necessary heating for the air duct in cold environments to prevent condensation and icing of the internal air. An outer layer 5 is fixedly connected to the outer wall of the intermediate layer 3. This outer layer 5 not only enhances the structural strength of the air duct but also provides additional protection against the influence of the external environment. An air inlet 6 is provided on the right side of the cylindrical air duct 1, facilitating the smooth entry of air into the air duct. Multiple guide plates 7 are fixedly connected to the inner wall of the columnar duct 1. The function of these guide plates 7 is to guide the airflow direction and ensure that the air can be evenly distributed inside the duct, thereby improving ventilation efficiency. A flange 8 is fixedly connected to the left side of the columnar duct 1. The design of the flange 8 allows the duct to be easily connected to other ventilation system components, and also facilitates maintenance and replacement. Multiple ventilation holes 9 are opened at the bottom of the columnar duct 1. After the air in these ventilation holes 9 is processed inside the duct, it can be smoothly discharged to the external environment, thereby maintaining the continuous operation and efficient work of the ventilation system. A fastening mechanism 2 is provided on the outer wall of the guide plate 7. The fastening mechanism 2 is used to fix the columnar duct 1.

[0032] Specifically, the columnar duct 1 is used in a specific ventilation system. An intermediate layer 3 is fixedly connected to the outer wall of the columnar duct 1. This intermediate layer 3 not only serves as reinforcement but also provides additional insulation. Inside the intermediate layer 3, an electric heating cable 4 is connected, which provides necessary heating for the duct in cold environments to prevent condensation and freezing of the internal air. An outer layer 5 is also fixedly connected to the outer wall of the intermediate layer 3. This outer layer 5 not only enhances the structural strength of the duct but also provides additional protection against the influence of the external environment. To ensure effective airflow into the duct system, an air inlet 6 is opened on the right side of the columnar duct 1, facilitating smooth airflow into the duct interior. Multiple guide plates 7 are fixedly connected to the inner wall of the columnar duct 1. The function of these guide plates 7 is to guide the airflow direction and ensure that the air can be evenly distributed throughout the duct, thereby improving ventilation efficiency. In order to enhance the connection stability of the duct and facilitate the connection with components, a flange 8 is fixedly connected to the left side of the columnar duct 1. The design of the flange 8 allows the duct to be easily connected to other ventilation system components, and also facilitates maintenance and replacement. In order to ensure that the air inside the duct can be discharged in time, multiple ventilation holes 9 are opened at the bottom of the columnar duct 1. The air in these ventilation holes 9 can be smoothly discharged to the external environment after being processed inside the duct, thereby maintaining the continuous operation and efficient work of the ventilation system.

[0033] Please see the appendix Figure 2 - Appendix Figure 3 The fastening mechanism 2 includes a lower locking block 201, a rotating block 202 rotatably connected to the rear top of the lower locking block 201, the rotating block 202 can rotate freely within a specific range, and an upper locking block 203 rotatably connected to the top of the rotating block 202, so that the upper locking block 203 can rotate together with the rotating block 202. A rotating shaft 204 is rotatably connected to the front middle of the lower locking block 201, and a fixing screw 205 is rotatably connected to the outer wall of the rotating shaft 204. This structure ensures the stability and reliability of the rotating shaft 204. A nut 206 is threadedly connected to the middle of the outer wall of the fixing screw 205, which not only enhances the firmness of the connection, but also facilitates the adjustment and fixing of the rotating shaft 204.

[0034] Specifically, the rear top of the lower locking block 201 is connected to the rotating block 202 via a rotatable connection, allowing the rotating block 202 to rotate freely within a specific range. The top of the rotating block 202 is also connected to the upper locking block 203 via a rotatable connection, enabling the upper locking block 203 to rotate along with the rotating block 202. The front middle of the lower locking block 201 is connected to the rotating shaft 204 via a rotatable connection. The outer wall of the rotating shaft 204 is provided with a fixing screw 205. This structure ensures the stability and reliability of the rotating shaft 204. The middle of the outer wall of the fixing screw 205 is connected to the nut 206 via a threaded connection, which not only enhances the firmness of the connection but also facilitates the adjustment and fixing of the rotating shaft 204.

[0035] Please see the appendix Figure 3 - Appendix Figure 4 A rubber pad 10 is fixedly connected to the adjacent side of the guide plate 7, which can effectively reduce the friction between the guide plate 7 and the components during operation, thereby extending the service life of the guide plate 7. A support ring 11 is fixedly connected to the middle of the outer wall of the columnar air duct 1, which can effectively support the air duct and prevent it from deforming during operation. Two lifting rings 12 are fixedly connected to the front and rear sides of the outer wall of the support ring 11, which can easily lift the air duct for installation or movement, greatly improving work efficiency.

[0036] Specifically, a rubber pad 10 is fixedly connected to the adjacent side of the guide plate 7, which can effectively reduce the friction between the guide plate 7 and the components during operation, thereby extending the service life of the guide plate 7. A support ring 11 is also fixedly connected to the middle of the outer wall of the columnar air duct 1, which can effectively support the air duct and prevent it from deforming during operation. Two lifting rings 12 are fixedly connected to the front and rear sides of the outer wall of the support ring 11, which can easily lift the air duct for installation or movement, greatly improving work efficiency.

[0037] Please see the appendix Figure 3 - Appendix Figure 5 The top of the lifting ring 12 is provided with a through hole 13, which allows the lifting ring 12 to be easily connected to the component. The rear top of the lower locking block 201 is rotatably connected to the rotating shaft 14. This connection method not only ensures the flexibility of the structure, but also enhances the overall stability and durability. The middle of the outer wall of the fixing screw 205 is slidably connected to the washer 15. The presence of the washer 15 can effectively reduce the friction between the screw and the rotating shaft 14, thereby extending the service life of the entire device.

[0038] Specifically, the top of the lifting ring 12 has a through hole 13, which allows the lifting ring 12 to be easily connected to the component. The rear top of the lower locking block 201 is rotatably connected to the rotating shaft 14. This connection method not only ensures the flexibility of the structure, but also enhances the overall stability and durability. In order to further improve the reliability of the connection, a washer 15 is slidably connected to the middle of the outer wall of the fixing screw 205. The presence of the washer 15 can effectively reduce the friction between the screw and the rotating shaft, thereby extending the service life of the entire device.

[0039] Working principle: After ventilation, air enters the columnar duct 1 through the air inlet 6. Under the action of the guide plate 7, the airflow enters the columnar duct 1. Since the guide plate 7 is connected to the inner wall of the columnar duct 1, the airflow in the columnar duct 1 remains stable under the force of multiple guide plates 7, and the air is discharged from the ventilation hole 9 to achieve the effect of air supply. The fastening mechanism 2 fixed to the outer wall of the columnar duct 1 insulates the inside of the columnar duct 1. At the same time, the internal electric heating tape 4 optimizes the insulation effect, and the electric heating tape 4 is fixed to the outer wall of the middle layer 3 to increase wear resistance, thereby extending the service life of the columnar duct 1.

[0040] In order to connect the columnar duct 1, the lower locking block 201 is engaged with the bottom of the flange 8 fixed on the adjacent side of the columnar duct 1, and the upper locking block 203 is engaged with the top outer wall of the flange 8 under the restriction of the rotating block 202. Then, the fixing screw 205 is rotated to the front top of the upper locking block 203 under the restriction of the rotating shaft 204, and fixed with the nut 206. This achieves quick fixed connection of the columnar duct 1 and improves work efficiency.

[0041] 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. Anti-condensation thermal composite fabric air hose, comprising a cylindrical air hose (1), characterized in that: The outer wall of the cylindrical air pipe (1) is fixedly connected with an intermediate layer (3), the inside of the intermediate layer (3) is fixedly connected with an electric heat tracing tape (4), the outer wall of the intermediate layer (3) is fixedly connected with an outer layer (5), the right side of the cylindrical air pipe (1) is provided with an air inlet (6), the inner wall of the cylindrical air pipe (1) is fixedly connected with a plurality of guide plates (7), the left side of the cylindrical air pipe (1) is fixedly connected with a flange (8), the bottom of the cylindrical air pipe (1) is provided with a plurality of ventilation holes (9), the outer wall of the guide plate (7) is provided with a fastening mechanism (2), and the fastening mechanism (2) is used for fixing the cylindrical air pipe (1).

2. The anti-condensation thermal composite fiber fabric air hose according to claim 1, characterized in that: The fastening mechanism (2) comprises a lower clamping block (201), the rear top of the lower clamping block (201) is rotatably connected with a rotating block (202), the top of the rotating block (202) is rotatably connected with an upper clamping block (203), the middle of the front side of the lower clamping block (201) is rotatably connected with a rotating shaft (204), the outer wall of the rotating shaft (204) is rotatably connected with a fixed screw (205), and the outer wall of the fixed screw (205) is threadedly connected with a nut (206) in the middle.

3. The anti-condensation thermal composite fiber fabric air hose according to claim 1, characterized in that: The adjacent side of the guide plate (7) is fixedly connected with a rubber pad (10).

4. The anti-condensation thermal composite fiber fabric air hose according to claim 1, characterized in that: The outer wall of the cylindrical air pipe (1) is fixedly connected with a support ring (11).

5. The anti-condensation thermal composite fiber fabric air hose according to claim 4, characterized in that: The outer wall of the support ring (11) is fixedly connected with two lifting rings (12) on the front and rear sides.

6. The anti-condensation thermal composite fiber fabric air hose according to claim 5, characterized in that: The top of the lifting ring (12) is provided with a perforation (13).

7. The anti-condensation thermal composite fiber fabric air hose according to claim 2, characterized in that: The rear top of the lower clamping block (201) is rotatably connected with a rotating shaft (14).

8. The anti-condensation thermal composite fiber fabric air hose according to claim 2, characterized in that: The outer wall of the fixed screw (205) is slidably connected with a gasket (15) in the middle.