Passive building ventilation pipeline structure

Abstract

The utility model discloses a passive building ventilating duct structure, which relates to the technical field of building ventilating systems and comprises a main air duct, connecting windows are arranged in the middle of the front wall and the middle of the rear wall of the main air duct, and an auxiliary air duct is arranged on the front side of the main air duct and corresponds to the connecting window on the front side. A sealing plate is arranged at the position, corresponding to the connecting window on the rear side, of the rear side of the main air duct, an air guide cover is arranged at the position, corresponding to the connecting window on the front side, of the interior of the main air duct, connecting flanges are arranged at the two ends of the main air duct and the two ends of the auxiliary air duct correspondingly, and the main air duct is responsible for circulation of overall air in a building. The air flow uniformity is ensured, through flexible arrangement of the auxiliary pipelines, air flow distribution can be conducted according to the requirements of different areas in the building, fresh air is effectively conveyed into the auxiliary air ducts, automatic adjustment can be conducted according to temperature and humidity data monitored in real time, and stability of environment parameters in the building is ensured.

Description

A passive building ventilation duct structure Technical Field

[0001] This utility model relates to the field of building ventilation system technology, specifically to a passive building ventilation duct structure. Background Technology

[0002] Building ventilation is the process of introducing fresh air and expelling stale air through natural or mechanical means. Its purpose is to ensure indoor air quality, regulate temperature and humidity, and remove harmful substances. Natural ventilation relies on wind and thermal pressure, achieving airflow exchange through structures such as doors, windows, and ventilation shafts. It is energy-efficient and environmentally friendly but is limited by climate. Modern buildings often employ hybrid ventilation strategies, combining the advantages of both. For example, intelligent control systems automatically switch modes based on the environment. Ventilation design must consider airflow organization, air exchange rate, and pollutant diffusion paths. A well-designed ventilation system can improve health and comfort, reduce building energy consumption, and is one of the core technologies of green building. Traditional passive building ventilation ducts typically only have one main duct, resulting in poor airflow uniformity and limited flexibility in duct layout, leading to uneven localized temperatures within the building. Summary of the Invention

[0003] The purpose of this utility model is to provide a passive building ventilation duct structure to solve the problems mentioned in the background art, which are that traditional passive building ventilation ducts usually only have one main duct, resulting in poor airflow uniformity and poor ventilation duct layout flexibility, leading to uneven local temperature in the building.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a passive building ventilation duct structure, including a main air duct, with connecting windows at the middle positions of the front and rear walls of the main air duct, a secondary air duct at the position corresponding to the connecting windows on the front side of the main air duct, a sealing plate at the position corresponding to the connecting windows on the rear side of the main air duct, an air guide hood at the position corresponding to the connecting windows on the front side inside the main air duct, and connecting flanges at both ends of the main air duct and both ends of the secondary air duct.

[0005] Preferably, the sidewalls of the main air duct and the secondary air duct both include an outer protective layer, and an inner protective layer is provided on the inner side of the outer protective layer. Thermal insulation filling is provided between the outer protective layer and the inner protective layer. Flange frames are provided at both ends of the main air duct and both ends of the secondary air duct and inside the connecting flange. The flange frames are disposed between the outer protective layer and the inner protective layer.

[0006] Preferably, the main air duct is provided with fixed frames at the front and rear sides corresponding to the connecting window, the sealing plate is fixedly connected to the rear fixed frame by bolts, and the secondary air duct is fixedly connected to the front fixed frame by bolts through the connecting flange.

[0007] Preferably, the air guide shroud is a cylindrical structure with an opening on one side, and the air guide shroud is fixedly connected to the connecting flange provided on the secondary air duct by bolts.

[0008] Preferably, a sealing gasket is provided on the inner side of the sealing plate at the position corresponding to the connecting window, and the sealing gasket abuts against the interior of the rear connecting window.

[0009] Compared with the prior art, the beneficial effects of this utility model are: the main air duct is responsible for the overall air circulation in the building, ensuring the uniformity of air flow; the secondary ducts, through flexible arrangement, can distribute airflow according to the needs of different areas inside the building, effectively avoiding the occurrence of local temperature unevenness; the air guide hood installed inside the main air duct effectively delivers fresh air to the interior of the secondary air duct, and can automatically adjust according to real-time monitored temperature and humidity data to ensure the stability of environmental parameters inside the building. Attached Figure Description

[0010] Figure 1 is an isometric view of the main structure of this utility model;

[0011] Figure 2 is a front view schematic diagram of the main structure of this utility model;

[0012] Figure 3 is a left-side view of the main structure of this utility model;

[0013] Figure 4 is a top sectional view of the main structure of this utility model;

[0014] Figure 5 is a top view of the main structure of this utility model.

[0015] In the diagram: 1-Main air duct, 2-Connecting window, 3-Secondary air duct, 301-Outer protective layer, 302-Inner protective layer, 303-Insulation filling, 4-Sealing plate, 5-Air guide cover, 6-Connecting flange, 7-Flange frame, 8-Fixing frame, 9-Sealing gasket. Detailed Implementation

[0016] 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.

[0017] Please refer to Figures 1-5. This utility model provides a passive building ventilation duct structure, including a main air duct 1. A connecting window 2 is provided in the middle of the front and rear walls of the main air duct 1. A secondary air duct 3 is provided on the front side of the main air duct 1 at the position corresponding to the connecting window 2 on the front side. A sealing plate 4 is provided on the rear side of the main air duct 1 at the position corresponding to the connecting window 2 on the rear side. An air guide hood 5 is provided inside the main air duct 1 at the position corresponding to the connecting window 2 on the front side. Connecting flanges 6 are provided at both ends of the main air duct 1 and both ends of the secondary air duct 3.

[0018] In use, connecting windows 2 are opened on both sides of the main air duct 1. The main air duct 1 is set at the position where fresh air needs to be connected. Multiple main air ducts 1 are connected to form an integral air duct structure through the connecting flanges 6 set at both ends of the main air duct 1. The secondary air duct 3 is set at a suitable installation position. Multiple secondary air ducts 3 are connected to form an integral air duct structure through the connecting flanges 6 set at both ends of the secondary air duct 3. The secondary air duct 3 is connected to the main air duct 1 through the connecting windows 2. A sealing plate 4 is set at the position of the connecting window 2 where no secondary air duct 3 is set. The sealing plate 4 seals the secondary air duct 3 that does not need to be set. An air guide hood 5 is set at the position inside the main air duct 1 corresponding to the position of the secondary air duct 3. The air guide hood 5 delivers fresh air from inside the main air duct 1 to inside the secondary air duct 3, ensuring smooth circulation of fresh air.

[0019] The sidewalls of both the main air duct 1 and the secondary air duct 3 include an outer protective layer 301, and an inner protective layer 302 is provided on the inner side of the outer protective layer 301. A thermal insulation filler 303 is provided between the outer protective layer 301 and the inner protective layer 302. Flange frames 7 are provided at both ends of the main air duct 1 and both ends of the secondary air duct 3, and inside the connecting flange 6. The flange frames 7 are located between the outer protective layer 301 and the inner protective layer 302. By providing the flange frames 7, the structural strength of the connecting flange 6 is improved. The outer protective layer 301 ensures the overall strength and wear resistance of the main air duct 1 and the secondary air duct 3. The inner protective layer 302 ensures its smoothness and facilitates the smooth flow of fresh air. The thermal insulation filler 303 between the outer protective layer 301 and the inner protective layer 302 ensures the thermal insulation performance of the main air duct 1 and the secondary air duct 3.

[0020] Fixed frames 8 are provided on the front and rear sides of the main air duct 1 at positions corresponding to the connecting window 2. The sealing plate 4 is fixedly connected to the fixed frame 8 on the rear side by bolts. The secondary air duct 3 is fixedly connected to the fixed frame 8 on the front side by bolts through the connecting flange 6. By setting fixed frames 8 at the position of the connecting window 2, the connection strength between the sealing plate 4 and the secondary air duct 3 and the main air duct 1 is improved.

[0021] The air guide shroud 5 is a cylindrical structure with an opening on one side. The air guide shroud 5 is fixedly connected to the connecting flange 6 provided on the secondary air duct 3 by bolts. The air guide shroud 5 is fixedly installed inside the main air duct 1 by bolts to ensure the connection strength between the air guide shroud 5 and the main air duct 1, and to ensure the flow of fresh air between the main air duct 1 and the secondary air duct 3.

[0022] A sealing gasket 9 is provided on the inner side of the sealing plate 4 at the position corresponding to the connecting window 2. The sealing gasket 9 abuts against the inside of the connecting window 2 on the rear side. By providing the sealing gasket 9 on the inner side of the sealing plate 4, the sealing performance of the sealing plate 4 to the connecting window 2 is ensured.

[0023] 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 passive building ventilation duct structure, characterized in that: The system includes a main air duct (1), with connecting windows (2) provided in the middle of the front and rear walls of the main air duct (1). A secondary air duct (3) is provided on the front side of the main air duct (1) at a position corresponding to the connecting window (2). A sealing plate (4) is provided on the rear side of the main air duct (1) at a position corresponding to the connecting window (2). A wind guide hood (5) is provided inside the main air duct (1) at a position corresponding to the connecting window (2). Connecting flanges (6) are provided at both ends of the main air duct (1) and both ends of the secondary air duct (3).

2. The passive building ventilation duct structure according to claim 1, characterized in that: The sidewalls of the main air duct (1) and the secondary air duct (3) both include an outer protective layer (301). An inner protective layer (302) is provided on the inner side of the outer protective layer (301). A thermal insulation filler (303) is provided between the outer protective layer (301) and the inner protective layer (302). Flange frames (7) are provided at both ends of the main air duct (1) and both ends of the secondary air duct (3) and inside the connecting flange (6). The flange frames (7) are located between the outer protective layer (301) and the inner protective layer (302).

3. A passive building ventilation duct structure according to claim 1, characterized in that: The main air duct (1) is provided with fixed frames (8) at the front and rear sides corresponding to the connecting window (2). The sealing plate (4) is fixedly connected to the fixed frame (8) at the rear side by bolts. The secondary air duct (3) is fixedly connected to the fixed frame (8) at the front side by bolts through the connecting flange (6).

4. A passive building ventilation duct structure according to claim 1, characterized in that: The air guide shroud (5) is a cylindrical structure with an opening on one side. The air guide shroud (5) is fixedly connected to the connecting flange (6) provided on the secondary air duct (3) by bolts.

5. A passive building ventilation duct structure according to claim 1, characterized in that: A sealing gasket (9) is provided on the inner side of the sealing plate (4) at the position corresponding to the connecting window (2), and the sealing gasket (9) abuts against the interior of the connecting window (2) on the rear side.

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