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Waste gas purifying system for highway tunnel

An exhaust gas purification system and road tunnel technology, applied in chemical instruments and methods, separation of dispersed particles, filtration of dispersed particles, etc., can solve the problems of difficult purification effect, frequent cleaning of dust collectors, and weak smoke absorption effect, etc. To achieve the effect of ensuring safety, reducing energy consumption and good feasibility

Inactive Publication Date: 2012-11-07
合肥工大科教开发部
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Problems solved by technology

[0011] 5. Dioxins
But there are also deficiencies. One is that the gases after the catalytic reaction are mainly sulfur oxides and carbon dioxide (greenhouse gases) are not treated; the other is that the efficiency of electrostatic dust removal is relatively low, and the dust collector is cleaned frequently, so the purification effect is difficult to achieve better Especially when disasters such as fire or explosion occur in the tunnel and a large amount of smoke and dust are generated, the electrostatic precipitator method has little effect on absorbing smoke

Method used

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  • Waste gas purifying system for highway tunnel
  • Waste gas purifying system for highway tunnel
  • Waste gas purifying system for highway tunnel

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Embodiment Construction

[0044] see figure 1 , Different tunnels have different layouts of air purification devices in the tunnel. When designing a ventilation scheme for a tunnel, it is necessary to fully consider the flow direction of fresh air 17, automobile exhaust 18, and the flow of dirty gas 11 in the tunnel. Distribution.

[0045] see figure 1 with figure 2 After comprehensively analyzing the ventilation flow and flow direction of each section in the tunnel, as well as the distribution of harmful gases and smog concentration in the tunnel, use these ventilation flow directions to set up purification devices 16 in appropriate places in the tunnel, which can greatly reduce the fan's damage. Power, but also can reduce the number of ventilation shaft excavation.

[0046] Such as image 3 with Figure 4 As shown, the purification device 16 in the present embodiment is that the air inlet pipe 2, the suspended solids filter box 3, the ceramic carrier active catalyst 4, the comprehensive purific...

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Abstract

The invention discloses a waste gas purifying system for a highway tunnel, which is characterized in that the outlet end of a fan is provided with a gas inlet pipe, a suspended matter filter box, an active catalyst for ceramic carriers, a comprehensive purifying box and an exhaust pipe in sequence along the gas flow direction; the suspended matter filter box is a sealed container containing cleanwater; the comprehensive purifying box is a sealed container containing saturated solution with calcium and magnesium ions; and the active catalyst for ceramic carriers is formed by that the surfacesof the porous ceramic carriers are provided with active ingredient coatings. The waste gas purifying system is applied to tunnel ventilation and can directly reduce the construction cost and the ventilation operating cost.

Description

technical field [0001] The invention relates to an exhaust gas purification system, in particular to an exhaust gas purification system used in road tunnels. Background technique [0002] Tunnels are usually used as underground for people to pass by, vehicles to drive, and the internal clearance section is 2m 2 Above the strip works buildings. The composition of pollutants in the tunnel is relatively complex, mainly vehicle exhaust and dust particles. These harmful gases and dust particles directly threaten human health. Vehicle exhaust not only has a strange smell, but also makes people dizzy and nauseated. The dust particles not only cause harm to people's bodies, but also may form smog, which seriously threatens the safety of driving. Scientific analysis shows that automobile exhaust contains hundreds of different compounds, among which the main pollutants are solid suspended particles such as dust and smog, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/75B01D46/00
Inventor 董满生胡晴倪锦平赵佳佳余志平刘凯韩丁
Owner 合肥工大科教开发部
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