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High wind-speed tunnel air electric dust-collection system

A tunnel air and electrical dust collection technology, applied in the system field of air purification technology, can solve the problems of reduced dust removal efficiency, uneven electrostatic field, single structure, etc., and achieve the effect of easy installation and suppression of secondary dust.

Inactive Publication Date: 2009-06-17
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology has a better dust removal effect when the airflow speed through the electric field device is 2-3m / s. Once the airflow speed increases, the dust removal efficiency will decrease accordingly.
In addition, there are also disadvantages that the needle bar discharge electrode is easy to deviate from the geometric center of the honeycomb hole, so that the electrostatic field is uneven and affects the dust removal efficiency, it is difficult to clean the dust-collecting honeycomb board, and the structure is single and cannot be combined arbitrarily.
Therefore, the purification system of the above structure is not suitable for the purification of air in a high wind speed environment.

Method used

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  • High wind-speed tunnel air electric dust-collection system
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  • High wind-speed tunnel air electric dust-collection system

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Embodiment Construction

[0023] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0024] This embodiment includes: a detection module 1, a pre-filter 2, an air distributor 3, a first-stage electrostatic precipitator 4, a second-stage electrostatic precipitator 5, a third-stage electrostatic precipitator 6, a slot filter 7, Post-filter 8, sprinkler 9, water collection tank 10, sewage filter 11 and sedimentation tank 12, wherein: the input ends of detection module 1 and pre-filter 2 all receive tunnel air, the input end of airflow distributor 3 Connected to the output end of the pre-filter 2, the first-stage electrostatic precipitator 4, the second-s...

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Abstract

The invention provides an electrostatic precipitation system for air in a high wind-speed tunnel, which belongs to the technical field of air purification. The system comprises a purification module, a detection module and a cleaning process module, wherein the input ends of the purification module and the detection module both receive tunnel air; the cleaning process module is connected with the purification module; and the purification module comprises a pre-filter, an air flow distributor, an electrostatic precipitator, a slot-formed filter and a post-filter. Under the conditions of wind speed of 4 to 9m / s and dust content of 0.2 to 10mg / m<3>, the dust collection coefficient reaches 90 to 98 percent, and the dust re-entrainment can be effectively restrained; and all parts are designed and manufactured according to modular requirement, so that the system is assembled and disassembled conveniently.

Description

technical field [0001] The invention relates to a system in the technical field of air purification, in particular to a high wind speed tunnel air electrical dust collection system. Background technique [0002] With the continuous advancement of urbanization, the construction of tunnels plays an important role in alleviating traffic congestion on main roads in central urban areas and reducing road surface environmental pollution. However, since the tunnels are all semi-enclosed structures, there are a lot of dust particles (PM) in the air. If they are not discharged in time, the driving safety and health of the drivers and passengers in the tunnel will be seriously affected. However, due to the limited underground space, the volume of the electrical dust collection system is limited, so it is required to ensure that the PM 10 The primary purification efficiency reaches over 95%. However, all kinds of electrical dust collection systems in the prior art are not suitable for...

Claims

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Application Information

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IPC IPC(8): B01D50/00
Inventor 姚炜张豪杰周洁刘洋何丹农
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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