Pipe gallery reinforced ventilation induction device
By setting up air guides at the corners of the pipe gallery's air guide channels, and utilizing inclined air guide surfaces and stepped groove structures, the problems of air pressure and air volume loss and vortex noise at the corners are solved, achieving more efficient airflow guidance and noise control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-20
AI Technical Summary
In existing technologies, there is significant pressure and airflow loss at the corners of the air guide channels in the pipe gallery, which can easily lead to eddies and noise problems.
A pipe gallery-enhanced ventilation induction device is adopted, which includes a first fixed surface and a second fixed surface of the air guide body that are perpendicularly connected to each other. The air guide surface is set at an angle, and an arc-shaped stepped groove and a sound-absorbing material layer are set on the air guide surface for the corners of the air guide channel.
It reduces pressure and flow loss at corners, reduces eddies and noise, improves duct efficiency, reduces fan energy consumption, and reduces noise through sound-absorbing material layers.
Smart Images
Figure CN224016366U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ventilation technology, and more specifically, to a pipe gallery enhanced ventilation induction device. Background Technology
[0002] The utility tunnel contains a dense network of various municipal pipelines, which generate heat and exhaust fumes during operation, such as heat from power cables and odors from sewage pipes. Ventilation removes this excess heat and exhaust fumes, maintaining a suitable temperature and air quality within the tunnel, ensuring the pipelines operate normally in a favorable environment, and extending their service life.
[0003] In existing technologies, airflow needs to be delivered into the underground utility tunnel through a ventilation duct set up in the building. At the corners of the ventilation duct, there will be significant pressure and airflow loss, which can also easily lead to eddies and noise problems. Utility Model Content
[0004] The purpose of this invention is to provide a pipe gallery enhanced ventilation induction device, which can improve the large pressure and air volume loss at the corners of the pipe gallery, and also improve the problems of eddies and noise.
[0005] The embodiments of this utility model can be implemented as follows:
[0006] This utility model provides a pipe gallery enhanced ventilation induction device, the pipe gallery enhanced ventilation induction device includes an air guide body, the air guide body has a first fixed surface, a second fixed surface and an air guide surface, the first fixed surface and the second fixed surface are perpendicularly connected to each other, the air guide surface is inclined, and one end of the air guide surface is connected to the first fixed surface and the other end is connected to the second fixed surface;
[0007] When the air guide body is located at the corner of the air guide channel, the first fixing surface and the second fixing surface are used to connect the air guide channel to each other.
[0008] In an optional implementation, the air guide surface is an arc surface.
[0009] In an optional embodiment, the air guide surface protrudes towards the junction of the first fixed surface and the second fixed surface.
[0010] In an optional embodiment, the air guide surface is an arc surface, and the corresponding central angle of the arc surface is 90°.
[0011] In an optional embodiment, the air guide surface is provided with a plurality of stepped grooves in sequence on the direction from the first fixed surface to the second fixed surface.
[0012] In an optional embodiment, the sidewalls of the stepped groove are arc-shaped.
[0013] In an optional embodiment, the stepped groove has a circular arc surface in cross-section, the depth of the stepped groove ranges from 20mm to 50mm, and the radius of curvature of the stepped groove ranges from 50mm to 150mm.
[0014] In an optional embodiment, all the stepped grooves are connected sequentially, and in the direction from the first fixed surface to the second fixed surface, the depth of the stepped grooves gradually decreases from the middle to both sides.
[0015] In an optional embodiment, the air guide surface is coated with a layer of sound-absorbing material.
[0016] In an optional embodiment, both the first fixing surface and the second fixing surface are provided with an adhesive layer.
[0017] The beneficial effects of the enhanced ventilation induction device for pipe corridors provided in this embodiment of the invention include:
[0018] The enhanced ventilation induction device for pipe racks in this application is designed with a guide body. When the guide body is located at the corner of the pipe rack, the first fixed surface and the second fixed surface are respectively used to connect with the guide channel. In this way, the guide surface connected to the first fixed surface and the second fixed surface and set at an angle will guide the air, which can reduce the pressure and flow loss of the airflow when passing through the corner, thereby improving the problem of vortex formation and noise reduction, and is also easy to modify. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of the enhanced ventilation induction device for the pipe gallery provided in this embodiment, which is installed at the corner of the air guide channel;
[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the enhanced ventilation induction device for the pipe gallery provided in this embodiment;
[0022] Figure 3 Fluid analysis diagram for the ventilation induction device for the pipe gallery that was not installed at the corner of the air guide channel;
[0023] Figure 4 Fluid analysis diagram of the enhanced ventilation induction device installed at the corner of the air guide channel provided in this embodiment;
[0024] Figure 5 Fluid analysis diagram of another type of enhanced ventilation induction device for a pipe gallery installed at the corner of the air guide channel provided in this embodiment.
[0025] Icons: 100-Pipe gallery enhanced ventilation induction device; 110-Air guide body; 111-First fixed surface; 112-Second fixed surface; 113-Air guide surface; 114-Step groove; 115-Sound absorbing material layer; 116-Adhesive layer; 200-Air guide channel; 210-Corner. Detailed Implementation
[0026] The utility tunnel contains a dense network of various municipal pipelines, which generate heat and exhaust fumes during operation, such as heat from power cables and odors from sewage pipes. Ventilation removes this excess heat and exhaust fumes, maintaining a suitable temperature and air quality within the tunnel, ensuring the pipelines operate normally in a favorable environment, and extending their service life.
[0027] In existing technologies, airflow needs to be delivered into the underground utility tunnel through ventilation ducts installed in the building. These ventilation ducts typically consist of vertically connected shafts and horizontal shafts. The vertical shafts connect to the ground, while the horizontal shafts redirect the airflow to flow along the extension direction of the utility tunnel. In this case, the airflow experiences significant pressure and volume losses at the corners of the ventilation ducts, and is also prone to eddies and noise.
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0031] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0032] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0033] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0034] The following describes in detail the overall structure, working principle, and technical effects of the enhanced ventilation induction device for pipe corridors provided by this utility model through embodiments and in conjunction with the accompanying drawings.
[0035] Please refer to Figure 1 and Figure 2 This embodiment provides a pipe gallery enhanced ventilation induction device 100. This device 100 can be used to modify the air guide channel 200 of a pipe gallery to reduce the impact of the corner 210 of the air guide channel 200 on the airflow pressure and volume, improve vortex formation, and reduce noise. The air guide channel 200 can be a residential return air duct and supply air duct, an industrial ventilation and smoke exhaust system, or a ventilation duct for tunnels and underground pipe galleries, etc.
[0036] Please refer to Figure 1 and Figure 2 In this embodiment, the enhanced ventilation induction device 100 for the pipe gallery includes an air guide body 110, which has a first fixed surface 111, a second fixed surface 112, and an air guide surface 113. The first fixed surface 111 and the second fixed surface 112 are perpendicularly connected to each other, and the air guide surface 113 is inclined, with one end of the air guide surface 113 connected to the first fixed surface 111 and the other end connected to the second fixed surface 112. When the air guide body 110 is located at the corner 210 of the air guide channel 200, the first fixed surface 111 and the second fixed surface 112 are respectively used to connect to the air guide channel 200.
[0037] Please refer to Figures 1 to 5In this embodiment, the enhanced ventilation induction device 100 for the pipe gallery is equipped with a guide body 110. When the guide body 110 is located at the corner 210 of the guide channel 200, the first fixed surface 111 and the second fixed surface 112 are respectively used to connect with the guide channel 200. In this way, the guide surface 113, which is connected to the first fixed surface 111 and the second fixed surface 112 and is inclined, will guide the air, which can reduce the pressure and flow loss of the airflow when passing through the corner 210, thereby improving the problem of vortex formation, improving the noise problem, and facilitating the modification.
[0038] Generally, the ventilation channel 200 of the utility tunnel includes a vertical shaft with a rectangular cross section and a horizontal shaft with a rectangular cross section. The vertical shaft and the horizontal shaft are connected. Then, through equipment such as fans, the outside air is sent from the vertical shaft to the horizontal shaft or the air in the utility tunnel is sent from the horizontal shaft to the vertical shaft, and then discharged to the outside air through the vertical shaft.
[0039] Please refer to Figures 1 to 2 In this embodiment, the air guide 110 has a columnar structure, with its first fixed surface 111 and second fixed surface 112 perpendicular to each other. This allows for the selection of the length of the air guide channel 200 according to requirements, making it easier to modify.
[0040] In this embodiment, the air guide surface 113 is an arc surface.
[0041] In this embodiment, the air guiding surface 113 is set as an arc surface to facilitate better air guiding.
[0042] Furthermore, the air guide surface 113 protrudes towards the junction of the first fixed surface 111 and the second fixed surface 112.
[0043] In this embodiment, the air guiding surface 113 protrudes towards the connection between the first fixed surface 111 and the second fixed surface 112, thereby making it easier to guide air.
[0044] In this embodiment, the air guide surface 113 is an arc surface, and the corresponding central angle of the arc surface is 90°.
[0045] In this embodiment, the air guide surface 113 is set as an arc surface and the central angle is set to 90°. After installation, one side will be tangent to the air inlet direction and the other side will be tangent to the air outlet direction, which can better guide the air.
[0046] In this embodiment, the air guide surface 113 is provided with a plurality of stepped grooves 114 in a sequential manner from the first fixed surface 111 toward the second fixed surface 112.
[0047] In this embodiment, by setting multiple stepped grooves 114, the airflow can be guided to gradually change direction, which can reduce sudden pressure loss.
[0048] Furthermore, the sidewalls of the stepped trough 114 are curved. In this embodiment, the sidewalls of the stepped trough 114 are set to be curved to facilitate better airflow.
[0049] Please refer to Figures 1 to 2 In this embodiment, the cross-section of the stepped groove 114 is an arc surface, the depth of the stepped groove 114 ranges from 20mm to 50mm, and the radius of curvature of the stepped groove 114 ranges from 50mm to 150mm.
[0050] In this embodiment, the depth of the stepped groove 114 is set to a range of 20mm to 50mm, and the radius of curvature of the stepped groove 114 is set to a range of 50mm to 150mm. This ensures a balance between the flow guiding effect and pressure loss.
[0051] In this embodiment, all the stepped grooves 114 are connected in sequence, and the depth of the stepped grooves 114 gradually becomes shallower from the middle to both sides in the direction from the first fixed surface 111 to the second fixed surface 112.
[0052] This configuration, where any two adjacent stepped grooves 114 form a raised tooth shape, allows for better flow guidance in this embodiment, thereby improving issues such as pressure drop, flow loss, eddies, and noise.
[0053] In this embodiment, a sound-absorbing material layer 115 is attached to the air guide surface 113. Attaching the sound-absorbing material layer 115 can better achieve noise reduction.
[0054] The sound-absorbing material layer 115 can be a PVC sound-absorbing board. PVC sound-absorbing board is a functional decorative material made of polyvinyl chloride as the main raw material. Its surface is designed with micropores, which consume energy through the friction and scattering of sound waves in the pores, reduce reflected sound, and have both sound absorption and noise reduction and decorative effects.
[0055] Please refer to Figures 1 to 2 In this embodiment, both the first fixing surface 111 and the second fixing surface 112 are provided with an adhesive layer 116.
[0056] The adhesive layer in this embodiment allows for better setup and facilitates assembly. In this embodiment, the adhesive layer 116 can be a silicone adhesive layer, etc.
[0057] Please refer to Figure 3 , Figure 4 and Figure 5 The simulated inlet wind speed in these three embodiments is the same, which is 15 m / s. Figure 3 The diagram shows the fluid analysis of the ventilation induction device for the pipe gallery that was not installed at the corner of the air guide channel. The diagram shows that a vortex will be formed at the corner, with a maximum wind speed of 36.3 m / s. Figure 4The fluid analysis diagram shows that a pipe gallery-enhanced ventilation induction device is installed at the corner of the air guide duct provided in this embodiment. Figure 4 It can be seen that compared to Figure 3 With reduced eddies, the maximum wind speed can reach 37.2 m / s. Figure 5 A fluid analysis diagram of another type of enhanced ventilation induction device for a pipe gallery installed at the corner of the air guide duct provided in this embodiment, consisting of... Figure 5 It can be seen that setting the stepped trough 114 can further increase the maximum wind speed, which can be increased to 39.1 m / s. Figure 3 , Figure 4 and Figure 5 It is evident that installing enhanced ventilation induction devices in the pipe gallery can reduce pressure loss and maximize performance. It can also reduce eddies, thereby reducing noise and other issues.
[0058] In summary, the enhanced ventilation induction device 100 for pipe corridors provided in this embodiment can guide airflow smoothly through transitions, reduce turbulence and branching at corners 210 and branches, and prevent fluid from impacting the duct wall and generating eddies. Furthermore, it can improve duct efficiency, reduce local pressure loss, and decrease fan energy consumption; it also reduces boundary layer thickness and enhances airflow distribution uniformity. Secondly, it can reduce noise by minimizing vibrations caused by airflow impacting the wall; noise is reduced through both direct absorption and shielding of propagation paths.
[0059] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.
Claims
1. A pipe gallery enhanced ventilation induction device, characterized in that, The enhanced ventilation induction device for the pipe gallery includes an air guide body (110), which has a first fixed surface (111), a second fixed surface (112), and an air guide surface (113). The first fixed surface (111) and the second fixed surface (112) are perpendicularly connected to each other. The air guide surface (113) is inclined and one end of the air guide surface (113) is connected to the first fixed surface (111), and the other end is connected to the second fixed surface (112). When the air guide body (110) is located at the corner (210) of the air guide channel (200), the first fixing surface (111) and the second fixing surface (112) are respectively used to connect with the air guide channel (200).
2. The enhanced ventilation induction device for pipe corridors according to claim 1, characterized in that, The air guide surface (113) is an arc surface.
3. The enhanced ventilation induction device for pipe corridors according to claim 2, characterized in that, The air guide surface (113) protrudes towards the junction of the first fixed surface (111) and the second fixed surface (112).
4. The enhanced ventilation induction device for pipe corridors according to claim 3, characterized in that, The air guide surface (113) is an arc surface, and the corresponding central angle of the arc surface is 90°.
5. The enhanced ventilation induction device for pipe racks according to any one of claims 1-4, characterized in that, The air guide surface (113) has a plurality of stepped grooves (114) recessed in the first fixed surface (111) toward the second fixed surface (112).
6. The enhanced ventilation induction device for pipe corridors according to claim 5, characterized in that, The sidewalls of the stepped groove (114) are arc-shaped.
7. The enhanced ventilation induction device for pipe corridors according to claim 6, characterized in that, The stepped groove (114) has a circular arc surface in cross section, the depth of the stepped groove (114) ranges from 20mm to 50mm, and the radius of curvature of the stepped groove (114) ranges from 50mm to 150mm.
8. The enhanced ventilation induction device for pipe corridors according to claim 5, characterized in that, All of the stepped grooves (114) are connected in sequence, and in the direction from the first fixed surface (111) to the second fixed surface (112), the depth of the stepped grooves (114) gradually becomes shallower from the middle to both sides.
9. The enhanced ventilation induction device for pipe racks according to any one of claims 1-4, characterized in that, The air guide surface (113) is covered with a sound-absorbing material layer (115).
10. The pipe gallery enhanced ventilation induction device according to any one of claims 1-4, characterized in that, Both the first fixing surface (111) and the second fixing surface (112) are provided with an adhesive layer (116).