一种隧道送风风道结构
By installing a windproof sheet inside the tunnel and sealing it to the tunnel wall, the problems of inconvenient installation of the partition and air leakage were solved, thus achieving a highly efficient tunnel air supply duct structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CENT SOUTH UNIV
- Filing Date
- 2024-03-15
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional tunnel ventilation ducts have partitions that are inconvenient to install and prone to air leakage, resulting in poor ventilation.
A windproof cloth is horizontally installed along the upper end of the tunnel and fixedly connected to the inner wall of the tunnel through a sealing structure to form an air supply duct. Expansion bolts and a labyrinth-type sealing structure are used to enhance the sealing performance.
It improves the ease of installation and sealing of air supply ducts, reduces air leakage, and enhances ventilation and construction efficiency.
Smart Images
Figure CN224515218U_ABST
Abstract
Claims
1. A tunnel ventilation duct structure, characterized by: The tunnel (1) is provided with a windproof cloth (2) along its length. The windproof cloth (2) is arranged horizontally and located at the upper end of the tunnel (1). The two ends of the windproof cloth (2) are respectively sealed and fixedly connected to the inner wall of the tunnel (1) through a sealing structure (3). The windproof cloth (2) together with the upper inner wall of the tunnel (1) forms the air supply duct (4).
2. The tunnel ventilation duct structure according to claim 1, characterized in that: The sealing structure (3) includes a mounting base plate (301) that is sealed and embedded in the inner wall of the tunnel (1). The air-insulating cloth (2) is pressed and fixed on the mounting base plate (301) by a pressure strip (302). A sealing strip (303) is provided between the air-insulating cloth (2) and the pressure strip (302) and between the air-insulating cloth (2) and the mounting base plate (301).
3. The tunnel ventilation duct structure according to claim 2, wherein: The pressure strip (302) is tightened by expansion bolts (304), which pass through the pressure strip (302), the windproof cloth (2), the sealing strip (303) and the mounting base plate (301) and are then embedded in the inner wall of the tunnel (1).
4. The tunnel ventilation duct structure according to claim 3, wherein: The mounting base plate (301) is provided with a clamping groove (305) extending along the length direction of the tunnel (1), and the clamping strip (302) is provided with a clamping boss (306) adapted to the clamping groove (305). The air-proof cloth (2) and the sealing strip (303) pass through the clamping boss (306) and the clamping groove (305), and the expansion bolt (304) passes through the clamping boss (306).
5. The tunnel ventilation duct structure according to claim 4, wherein: The mounting base plate (301) is L-shaped, the clamping groove (305) is provided on the vertical section of the mounting base plate (301), the horizontal section of the mounting base plate (301) abuts against the inner wall of the tunnel (1), and the back side of the mounting base plate (301) and the inner wall of the tunnel (1) are filled with sealing mortar (307).
6. A tunnel ventilation duct structure according to any one of claims 1-5, characterized in that: A tension rope (5) is connected between the windproof cloth (2) and the inner wall of the tunnel (1) to tighten the windproof cloth (2).