Air distribution controller for tunnel construction air duct

Abstract

The invention particularly relates to an air distribution controller for a tunnel construction air duct, aiming at solving the problems that the ventilation time is prolonged, the energy consumption is wasted, and the work period is delayed since the air quantity required for working faces on two sides of the conventional tunnel construction air duct can not be reasonably distributed. The bottom of a three-way joint is provided with a cylindrical groove, the groove is internally provided with an air distribution cylinder, the side wall of the air distribution cylinder is provided with four air outlets which consist of a small air outlet and a large air outlet, which are arranged front and back, and two medium air outlets which are arranged left and right, a rotating shaft is fixed at the center of the bottom of the air distribution cylinder, a guide pipe which is fixed under the bottom of the groove is sleeved on the rotating shaft, a control handle which rotates around the rotating shaft up and down is connected under the rotating shaft, and four control handle fixing clamp rings which are evenly arranged along with the axes of the groove and correspond to the positions of the air outlets are fixed under the bottom of the groove. The controller is reasonable and reliable in structure design, and has the advantages of being economical, reasonable and energy-saving, so that some equipment purchasing cost and the daily energy consumption cost can be saved.

Description

technical field [0001] The invention relates to a tunnel construction air volume control device, in particular to an air volume distribution controller for tunnel construction ventilation ducts. Background technique [0002] During tunnel construction, in order to provide fresh air to the tunnel, dilute the concentration of harmful smoke and reduce the ambient temperature in the tunnel, high-power fans must be used to supply air to the excavation work surface through the pipeline, which is called construction ventilation. Auxiliary passages such as inclined shafts and transverse tunnels are often used in tunnel construction to increase the excavation work surface of the front tunnel, and a set of pipelines is used to provide ventilation for the two work surfaces at the same time, which is referred to as the one-to-two ventilation mode. [0003] The one-to-two ventilation mode is mainly composed of high-power fans outside the cave, main pipes, branch pipes, and connecting pip...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides an air volume distribution controller for tunnel construction ventilation ducts in order to solve the problem that the air volume required for the working surfaces on both sides of the existing tunnel construction ventilation ducts cannot be reasonably distributed, resulting in prolonged ventilation time, waste of energy consumption, and delay in construction period.

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