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Deep tunnel oxygen-rich air circulation system

An oxygen-enriched gas and circulation system technology, which is applied in the ventilation of mines/tunnels, mining equipment, mining equipment, etc., can solve the problems that harmful gases cannot be effectively discharged, endanger the health of workers, etc., and reduce the area of ​​diffuse oxygen supply , the effect of reducing dust

Pending Publication Date: 2019-09-17
杭州创威实业股份有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, harmful gases such as dust, CO, CO2, NO, NO2, sulfide, and welding fume generated during the construction process cannot be effectively discharged, and remain in the operation area, which will still endanger the health of the workers.

Method used

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  • Deep tunnel oxygen-rich air circulation system
  • Deep tunnel oxygen-rich air circulation system
  • Deep tunnel oxygen-rich air circulation system

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 1 , figure 2 As shown, in the deep tunnel oxygen-enriched gas circulation system of the present invention, the construction transport vehicles 4 and personnel come to the tunnel face 10 to carry out digging work along the tunnel, and along the depth of the tunnel, fresh air pipes 15 and exhaust air Tube 14 is used to renew the air in the hole. The fresh air pipe 15 is connected with the fresh air blower 18 by the soft connection joint 17 of the blower fan, and one end in the exhaust pipe 14 tunnel is connected with the No. I exhaust fan 11, and an exhaust outlet diffuser 19 is installed at the tail of the tunnel. The top of the diffusion device 19 is provided with a humidifying and dust-reducing device 20; the humidifying and dust-reducing device 20 is driven by No. 1 humidifier 1 to work. In order to strengt...

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Abstract

The invention relates to the field of tunnel ventilation, and aims to provide a deep tunnel oxygen-rich air circulation system. The deep tunnel oxygen-rich air circulation system includes a fresh air pipe and an air discharging pipe which are arranged along the depth of the tunnel in parallel, the fresh air pipe is connected to a fresh air fan, and the air discharging pipe is connected to an air discharging fan I; an oxygen conveying pipe is arranged in parallel to the fresh air pipe; the oxygen conveying pipe is combined with the fresh air pipe through a gas mixing device at the tunnel face near the tunnel, fresh air in the fresh air pipe is mixed into oxygen-rich air, and the oxygen-rich air is dispersed to the space of the tunnel face through an oxygen dispersion terminal. According to the deep tunnel oxygen-rich air circulation system, a main construction area including the tunnel face can be established into a clean oxygen-rich environment, working conditions of operators working on a plateau are improved, harms of low pressure and low oxygen to human bodies are reduced, the incidence of acute and chronic altitude sickness is decreased, the working efficiency is improved, and the construction quality is ensured.

Description

technical field [0001] The invention relates to the field of tunnel ventilation, more specifically, an oxygen-enriched gas circulation system for deep tunnels. Background technique [0002] With the continuous development of the western region, the planning and construction of the Sichuan-Tibet Railway has been fully started. It is reported that the total length of the Sichuan-Tibet Railway is about 1,700 kilometers, and the terrain conditions are extremely complex. From the Sichuan Basin to the Qinghai-Tibet Plateau, the Sichuan-Tibet Railway passes through the Sichuan Basin, the alpine valley area in western Sichuan, the alpine area in western Sichuan, the Hengduan mountainous area in southeastern Tibet, and the valley bottom area in southern Tibet. More than 80% of the 5 geomorphic units will be constructed in the form of tunnels and bridges, many of which are located in plateau low pressure environments. During the construction period, because the mountains in the plate...

Claims

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Application Information

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IPC IPC(8): E21F1/08E21F17/18
CPCE21F1/08E21F1/085E21F17/18
Inventor 楼百根孙莉钱晶斯航军
Owner 杭州创威实业股份有限公司
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