Plane jet type metro tunnel blowing device

Abstract

The invention relates to a metro tunnel ash cleaning device, belonging to the technical field of environmental protection of urban metro tunnels. Under the dispatching arrangement of the metro operation company, the plane jet type metro tunnel blowing device is quickly pulled from the blowing device parking place to the metro tunnel which has blowing and ash cleaning needs by a railway diesel locomotive, and the blowing and ash cleaning operation is carried out on the metro tunnel at a relatively low running speed. The plane jet type metro tunnel blowing device is mainly characterized in thata blowing nozzle (13) is arranged at the periphery of a pressure stabilizing box (8) and is close to the boundary of the metro vehicle, and the dust on the inner wall of the metro tunnel and adhered to various facilities is blown in a plane jet mode. The outer edge of an air suction port (9) is close to the metro vehicle gauge, and sucks the plane jet air discharged from the blowing nozzle (13) into a dust removing device (12) together with the raised dust, so that the dust is filtered down and the clean air is returned to the metro tunnel.

Description

1. Technical field [0001] The invention relates to the technical field of environmental protection of urban subway tunnels, in particular to a plane jet type subway tunnel purging device. 2. Background technology [0002] There are many facilities installed in the subway tunnel, such as local telephone cables, control cables, professional signal cables, AP antennas, overhead ground wires, lighting, police leaky cables, communication signal brackets, communication signal cables, strong electric cable brackets, Power cables, maintenance socket boxes, signals, line signs, etc. There are a large number of grooves, gaps, pipes, wires, etc. between these facilities (see Image 6 ), and the various facilities vary in size, height and shape. During the operation of subway trains, some dust will be generated. These dusts will adhere to the surface of the facilities in the subway tunnel, the inner wall of the tunnel, and settle in the ground of the subway tunnel and the grooves and g...

AI Technical Summary

Problems solved by technology

Since there are electrical equipment in the tunnel, high-pressure water washing can only clean the area below 1.4 meters in the subway tunnel, and the humidity in the tunnel increases after washing, which has a certain impact on the facilities in the tunnel, and there is also the problem of cleaning wastewater discharge

The compressed air purge air flow is a free jet with a circular cross-section, the compressed air nozzle hole is small, the air flow is small, and the purge air velocity decays quickly, so the blowing effect on the inner wall of the tunnel and various facilities far away from the compressed air nozzle is not ideal.

Images