Intelligent exhaust system

Abstract

The invention discloses an intelligent exhaust system which comprises a ventilation pipeline and a detection control system. Exhaust fans are arranged in the length direction of the ventilation pipeline at equal intervals. The detection control system comprises a detector and a control host connected with the exhaust fans. The detector is connected with the control host. The intelligent exhaust system has the advantages that the ventilation pipeline, the exhaust fans and the detection control system are installed in the length direction of a tunnel and are hung on the top of the tunnel, after a power supply is switched on, the control host controls the exhaust fans to start when the detector detects harmful gas (such as sulfur dioxide or carbon monoxide) or harmful solid particles (such as dust or smoke), and the harmful gas or the harmful solid particles are sucked into the ventilation pipeline to be exhausted so that the exhaust function can be achieved.

Description

technical field [0001] The invention relates to the field of industrial ventilation, in particular to an intelligent exhaust system. Background technique [0002] At present, the construction ventilation of underground projects mostly adopts the press-in ventilation method. After the fan works for 30 minutes, the excavation surface can be blown clean, which barely meets the normal work requirements of the construction personnel, but the return air and the fresh air entering the tunnel mouth At 300-500 meters away from the excavation surface, the pressure is relatively balanced, the turbid air gathers, the visibility is extremely low, the construction safety hazard is relatively large, and the air pollution in the overall tunnel is serious. There is also a hybrid ventilation scheme in the prior art. Although there is another pipeline to assist the ventilation, the ventilation distance of the fan is relatively short, and the effect is not very obvious. Especially in the simul...

AI Technical Summary

Problems solved by technology

[0002] At present, the construction ventilation of underground projects mostly adopts the press-in ventilation method. After the fan works for 30 minutes, the excavation surface can be blown clean, which barely meets the normal work requirements of the construction personnel, but the return air and the fresh air entering the tunnel mouth 300-500 meters away from the excavation surface, the pressure is relatively balanced, the turbid air gathers, the visibility is extremely low, the construction safety hazard is relatively large, and the overall air pollution in the tunnel is serious

There is also a hybrid ventilation scheme in the prior art. Although there is another pipeline to assist the ventilation, the ventilation distance of the fan is relatively short, and the effect is not obvious

Especially in the simultaneous construction of double-track tunnels and the intersection of inclined shafts, this phenomenon is even more serious. So far, there is no good ventilation solution in underground engineering construction

[0003] On the other hand, the ventilation of factories and mines with high dust and high smoke mostly uses ordinary exhaust fans to start manually, and rarely uses targeted intelligent ventilation systems, which wastes energy and is very uneconomical

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