Environmental-control type tunnel ventilation, dust falling and purifying device

Abstract

The invention discloses an environmental-control type tunnel ventilation, dust falling and purifying device. The device comprises a jet fan box connected with a centralized control box, an air state monitoring unit for detecting environments in dust falling units in real time, a dust falling water curtain ring, a water curtain pump group and a water supply and return system; the dust falling watercurtain ring is arranged along the outline of a tunnel, is used as a soft isolating barrier for the tunnel and divides the tunnel into multiple groups of dust falling units; the water curtain pump group is connected with the multiple groups of dust falling units, and the other end is connected with a fresh water box; and the water supply and return system supplies water to the dust falling unitsand recycles waste water. The device has the beneficial effects as follows: the air state monitoring unit is integrated, the air particulate concentration in the tunnel is monitored and alarmed, operation and maintenance cleaning work is warned effectively, the device starts automatically, the water curtain ring is used as the soft isolating barrier for the tunnel and divides the tunnel into the multiple groups of dust falling units to realize dust falling, the air carrying flying dust is prevented from entering the next dust falling unit, the air in the tunnel is ensured to be clean, the goodair environment can be provided for personnel evacuation, and secondary damage caused by the dirty environment to personnel is avoided.

Description

technical field [0001] The invention relates to a dust reduction and purification device, in particular to an environment self-controlled tunnel ventilation dust reduction and purification device used in railway tunnel engineering and urban rail transit tunnel engineering. Background technique [0002] In recent years, with the massive construction of railway tunnel projects and urban rail transit projects, disaster prevention, ventilation scheme design and equipment selection in project tunnels have been paid more and more attention. The jet fan is one of the most commonly used equipment in the disaster prevention and ventilation design of railway tunnel engineering and urban rail transit engineering tunnels, but the jet fan can only meet the wind speed requirements in the tunnel and cannot effectively improve the air quality in the tunnel. However, the air quality in rail transit tunnels is poor, there are many particles such as dust, and it is difficult to clean in daily ...

AI Technical Summary

Problems solved by technology

The jet fan is one of the most commonly used equipment in the disaster prevention and ventilation design of railway tunnel engineering and urban rail transit engineering tunnels, but the jet fan can only meet the wind speed requirements in the tunnel, and cannot effectively improve the air quality in the tunnel

However, the air quality in rail transit tunnels is poor, there are many particles such as dust, and it is difficult to clean in daily operation and maintenance, and the emergency evacuation passages and rescue passages of the tunnels are only used in emergency conditions. The high wind speed at the exit will cause a large amount of dust in the tunnel, which will affect the evacuation of personnel under emergency conditions, and even cause secondary injuries to personnel due to the dirty air environment in the tunnel

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