Multi-channel tunnel ventilation rapid conversion structure and device for shield
By using multi-channel tunnel ventilation rapid conversion structures and devices in tunnel construction, the problem of easy interruption of ventilation devices is solved, the safety and progress of tunnel construction are ensured, and rapid switching and uninterrupted ventilation are achieved in the event of fan failure.
CN223410885UActive Publication Date: 2025-10-03SINOHYDRO BUREAU 5 +1
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Patent Information
- Application Number
- CN202423181198.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Technical Problem
During the construction of existing tunnels, ventilation devices are easily interrupted, resulting in high construction risks and affecting progress.
Method used
A multi-channel tunnel ventilation rapid conversion structure and device for shield machines is designed. Two jet fans are connected by a Y-shaped duct. The wind shield structure and the middle wind shield are used to achieve rapid ventilation conversion. This ensures that when one fan fails, the other fan will immediately switch to ventilation to avoid interruption.
Benefits of technology
Uninterrupted tunnel ventilation is achieved, construction safety and production efficiency are improved, and risks and progress impacts caused by ventilation interruptions are avoided.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a multi-channel tunnel ventilation quick switching structure and device for a shield, and relates to the technical field of tunnel construction devices, the multi-channel tunnel ventilation quick switching structure comprises a Y-shaped air duct, and two air inlets of the Y-shaped air duct are respectively connected with air outlets of a first jet fan and a second jet fan; two air inlets of the Y-shaped air duct are connected with a first air blocking structure and a second air blocking structure respectively. A middle partition plate is installed in the middle of the interior of the Y-shaped air duct and connected with a middle air blocking structure. The switching structure is connected with the two jet fans and the tunnel portal, ventilation channels of the two jet fans can be switched at any time through the rapid switching ventilation device, and even if one jet fan breaks down, it can be guaranteed that tunnel ventilation is uninterrupted. And the jet fans can be quickly switched for ventilation, manual air pipe switching is not needed, the switching time is short, it is guaranteed that tunnel ventilation is not interrupted, and the shield tunnel production efficiency and construction safety are improved.
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