Tunnel plugging device with valve adjustment and use method thereof

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By designing a tunnel sealing device with valve adjustment, the tunnel is efficiently sealed and overcurrent adjustment using an annular sealing airbag and mechanical structure, the problems of low sealing efficiency and economic waste in the prior art are solved, and the static hydraulic environment and overcurrent conditions are achieved.

CN116289818BActive Publication Date: 2025-03-25HUANENG LANCANG RIVER HYDROPOWER CO LTD +1

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Patent Information

Application Number: CN202310257970.9
Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner
Filing Date: 2023-03-15
Publication Date: 2025-03-25
Estimated Expiration: 2043-03-15

Application Information

Patent Timeline

15 Mar 2023

Application

CN202310257970.9

25 Mar 2025

Publication

CN116289818B

IPC: E02B9/02; E02B9/06; E02B3/16

CPC: E02B9/02; E02B9/06; E02B3/16; Y02E10/20

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Application Domain

Water-power plants Hydro energy generation

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AI Technical Summary

Technical Problem

The existing temporary sealing structure of tunnels has problems of inefficiency and economic waste during casting and breaking, and it is difficult to maintain overflow conditions under sealing conditions.

Method used

A tunnel sealing device with valve adjustment is designed, including an annular sealing airbag, an auxiliary water blocking mechanism, a support mechanism and a valve mechanism, and the sealing and overcurrent adjustment is achieved through the mechanical structure of airbag inflation and motor-driven.

Benefits of technology

A static hydraulic environment with overflow conditions is achieved under sealing conditions, which improves the efficiency and sealing performance of tunnel sealing, and reduces economic waste.

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Abstract

The present invention discloses a tunnel plugging device with valve adjustment, which belongs to the technical field of hydropower station engineering, and comprises: an annular sealing airbag with multiple protrusions on the outer surface of an airbag inflation tube, the interior of the annular sealing airbag is respectively equipped with an auxiliary water plugging mechanism and a supporting mechanism from the water inlet end to the water outlet end, and the end of the supporting mechanism away from the water plugging mechanism is equipped with a valve mechanism; the present invention also discloses a method for using the tunnel plugging device with valve adjustment; the present invention is provided with a water plugging mechanism and a valve mechanism, so that the tunnel can still have a flow condition under the condition of plugging.

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