Cleaning type muddy water pipe extending device based on three-way valve

Abstract

The invention relates to a cleaning type muddy water pipe extending device based on a three-way valve. The cleaning type muddy water pipe extending device comprises a pipe connector trolley, the three-way reversing valve is arranged on the pipe connector trolley, a joint of the three-way reversing valve is communicated with a water supply pipe, a first muddy water pipe segment of a shield tunneling machine and a second muddy water pipe segment of the shield tunneling machine; the first muddy water pipe segment comprises a muddy water pipe fixing pipe segment and a muddy water pipe walking pipe segment which walks along with the pipe connector trolley, and the muddy water pipe fixing pipe segment and the muddy water pipe walking pipe segment are connected; the muddy water pipe walking pipe segment is connected with the joint of the three-way reversing valve, and a cleaning moving plug is arranged in a pipe cavity of the water supply pipe; under the water pressure effect, the cleaning moving plug enters the muddy water pipe fixing pipe segment through the three-way reversing valve; and a plug passing indicator which is used for reminding whether the cleaning moving plug passes through and enters the muddy water pipe fixing pipe segment or not is arranged on the first muddy water pipe segment. According to the device, the phenomenon that during pipe connecting of the shield tunneling machine, muddy water in a muddy water pipe is directly drained to the construction site can be avoided, the influence of muddy water on construction inside a tunnel is reduced, the clean and environment-friendly use effect is achieved, and the device is simple in structure, and pipe-connecting use is convenient.

Description

technical field [0001] The invention belongs to the technical field of mud-water shield machine construction, and in particular relates to a clean-type mud-water pipe extension device based on a three-way valve. Background technique [0002] Subway is an ideal mode of transportation in big cities. According to statistics, 79 rail transit lines will be built in 22 domestic cities around 2015, with a total investment of more than 880 billion, of which subways account for the majority, and subway construction climaxes have been set off across the country. The market demand for shield machines, key equipment for subway construction, has increased significantly. Commonly used subway shield machines are mainly divided into two types: earth pressure balance type and muddy water type. Due to the many rivers in the south, the market share of muddy water type shield machines is gradually increasing, and muddy water type shield machines are clean and environmentally friendly, and are i...

AI Technical Summary

Problems solved by technology

However, when the pipes are connected, all the muddy water in the mud inlet pipe and the mud discharge pipe will be discharged into the tunnel from the interface, causing damage to the environment of the construction site and not meeting the requirements of civilized construction.

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