An inflatable isolation device for tunnel ventilation construction

Abstract

The invention discloses an inflatable isolating device for tunnel ventilation construction. The device comprises an air inlet pipe, an air exhaust pipe, an isolation device and a fan, wherein the isolation device comprises a bottom connecting plate and a sealed air bag; the sealed air bag adopts a sealed inflatable U-shaped structure; an air bag inflation port is formed in one end of the sealed air bag; double-layer isolation cloth is connected to the inner edge of the sealed air bag, and the sealed air bag and the double-layer isolation cloth form a U-shaped surface; the lower edge of the double-layer isolation cloth penetrates through strip-shaped holes formed in two sides of the connecting plate, and compacted connection is realized; a preserved channel which can be opened and closed is formed in the middle of the double layer isolation cloth; two preserved holes which are used for connecting the air inlet pipe and the air exhaust pipe are formed in two sides of the preserved channel. According to the device, polluted air can be isolated, replaced and exhausted intensively outside a cave through isolation, secondary pollution is avoided, and the problems of large investment and energy consumption, long spent time and the like in tunnel ventilation construction at present can be solved.

Description

technical field [0001] The invention relates to a sealing device for tunnel ventilation construction, and belongs to the technical field of tunnel ventilation and dust removal. Background technique [0002] Ventilation and dust prevention technology is a major event involving the life and health of personnel, an important symbol of the tunnel construction level, and one of the controlling factors affecting the selection of tunnel construction schemes. Due to the construction characteristics of long tunnels such as large length and small working space, it is difficult to discharge construction smoke and dust. During the construction process, the smoke and dust produced by drilling and blasting, ballasting machinery, and geological harmful gases have caused great harm to the bodies of construction workers. great harm. [0003] At present, press-in ventilation is widely used in our country. Jet fans for press-in ventilation and axial fans for roadway ventilation, as well as th...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an inflatable isolation device for tunnel ventilation construction. Ventilation investment is large, energy consumption is large, time-consuming and other issues

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