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Tunnel ventilation communication system and its wind power distribution and regulating method

A tunnel ventilation and intercommunication system technology, applied in mine/tunnel ventilation, earthwork drilling, mining equipment, etc., can solve problems such as idle equipment, inability to interoperate and deploy ventilation devices, and insufficient wind power of fans, etc., to achieve scheduling and Allocate and improve the effect of equipment utilization

Active Publication Date: 2008-10-15
CHINA RAILWAY 11TH BUREAU GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the specific situation of the need for ventilation of each excavation face, sometimes it is necessary to strengthen the air supply, but the wind power of this group of fans is not enough, sometimes the face needs to stop the air supply, and the equipment is idle
A group of fans only corresponds to one tunnel face, and only participates in the work of the ventilation system, and the ventilation devices between the left and right adjacent tunnels cannot be used and deployed

Method used

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  • Tunnel ventilation communication system and its wind power distribution and regulating method
  • Tunnel ventilation communication system and its wind power distribution and regulating method

Examples

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Effect test

Embodiment 1

[0015] Depend on figure 1 It can be seen that the ventilation intercommunication system of the double air duct tunnel is composed of two ventilation devices, two mutual ventilation ducts and five valves; wherein the first ventilation device is composed of the first air duct 11 and the first fan 12, and the first air duct 11 is A pipe with openings at both ends, one end is the first air inlet, the other end is the first air outlet, the first air inlet is connected to the first fan 12, and the first air outlet is arranged on the first face 13 to be ventilated; the second Ventilation device is made up of the second wind cylinder 21 and the second blower fan 22, and the second wind cylinder 21 is the pipeline of opening at two ends, and one end is the second air inlet, and the other end is the second air outlet, and the second air inlet is connected to the second air inlet. Fan 22, the second air outlet is arranged on the second palm surface 23 to be ventilated; the first mutual v...

Embodiment 2

[0023] Depend on figure 2 It can be seen that the ventilation intercommunication system of the three-air duct tunnel is composed of three ventilation devices, four inter-ventilation ducts and eight valves; wherein the first ventilation device is composed of the first air duct 101 and the first fan 102, and the first air duct 101 is A pipe with openings at both ends, one end is the first air inlet, the other end is the first air outlet, the first air inlet is connected to the first fan 102, and the first air outlet is arranged on the first face 103 to be ventilated; the second Ventilation device is made up of second air cylinder 201 and second blower fan 202, and second air cylinder 201 is the pipeline of two ends opening, and one end is the second air inlet, and the other end is the second air outlet, and the second air inlet is connected to the second air inlet. Fan 202, the second air outlet is placed on the second palm surface 203 to be ventilated; the third ventilation de...

Embodiment 3

[0035] The Maluqing Tunnel on the Yiwan Railway is a double-track railway tunnel with horizontal guides. The total length of the tunnel is 7,879 meters, and the entrance section and horizontal guides have been excavated nearly 4,000 meters. How to improve the ventilation of the tunnel is a big problem. The traditional method is to move and increase ventilation mechanical equipment in the tunnel, which not only increases the input cost but also has troubles of frequent moving equipment. After using the three air cylinder tunnel ventilation intercommunication system of the present invention, the original independent air cylinder ventilation devices are connected to each other, and the ventilation condition of the tunnel has been greatly improved, which not only meets the tunnel ventilation requirements, but also does not require more investment The mechanical equipment works well.

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Abstract

The invention discloses a tunnel ventilation interflow system and a method for allocating and adjusting wind power, which is mainly to solve rationally allocation of ventilation of an excavating face tunnel. The system consists of two or three ventilation devices and a plurality of connected wind-cones and a plurality of valves, each ventilation device is formed by a wind-cone and a set of blowers, adjacent ventilation devices are connected by the connected wind-cones, and the plurality of valves are arranged in each wind-cone and each connected wind-cone. The tunnel ventilation interflow system and the method have the advantages that: the prior ventilation pipeline is networked, conveying direction and wind power intensity are allocated and adjusted by opening or closing a valve so as to form wind supply ways of one to one, one to many, many to one and many to many of a ventilator and an excavating face, which can realize effectively dispatching and allocation of the wind power.

Description

technical field [0001] The present invention relates to tunnel ventilation, mainly to reasonably solve the adjustability of tunnel ventilation on the face of the tunnel. Background technique [0002] In order to ensure that the working environment of the tunnel face complies with occupational health and safety standards during tunnel construction, it is required to ventilate the tunnel face. At present, it is generally used: connect one end of an air duct to a group of ventilators, and place the other end on the face of the tunnel. The length of the air duct increases with the continuous advancement of the tunnel face. Delivered to the face of the face, improving the air quality of the face of the face. That is to say, for a face, an independent ventilation device is composed of an air duct and a group of fans. [0003] The ventilation of the two tunnels of the left and right separated double-lane tunnels requires two independent ventilation devices; the ventilation of the...

Claims

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Application Information

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IPC IPC(8): E21F1/00
Inventor 游国平
Owner CHINA RAILWAY 11TH BUREAU GRP
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