Design Of Dust Removing System To The Electrical Equipment At The Bottom Of Subway Train

The researching and designing of the dust-removal equipment for the bottom of subway train in this thesis is suitable for the B-type subway train, and is mainly for Chongqing Metro Line 6 , its main function is to inject the electric equipment on the bottom of the metro train, to inhale the dust attached to the surface of the electric equipment into the vacuum suction pipes.The polluted gas will be discharged after cleaning treatment.First, the dust-removal equipment for the bottom of subway trains will be considered as a unity contained a large number of different systems, the principle scheme for the dust-removal equipment for the bottom of subway trains will be systematically analyzed, and then the overall scheme of equipment will be fixed through the systematic design method. In this paper, it divide the dust-removal equipment into blowing system and vacuuming system to analyze and research. Blowing system : the equipment provide the air supply with the air compressor,and separate the dust from the electric equipment on the bottom of the metro train. The mobile platform in this system is adopted the mode which running in the orbit. The driving motor in this system is adopted frequency modulation to control. The power supply system is adopted installating the safe slide wire in the trench to supply electricity; Vacuuming system : The dust control pipe is designed for capturing the polluted gas through the research of dust collector hood, and then the polluted gas will be exhausted into the dust catcher to clean, finally the cleaned gas will be discharged into the atmospheric air. In this paper, blowing system and vacuuming system are made a detailed analysis of the operating principle and structural design.This thesis is focused on introduction of the design and calculation of dust-removal equipment, and based on the analysis of the injection airflow movement rules and the capture air flow movement rules. It include injection gas flow calculation, air compressor choice and analysis, dust collector hood design and calculation, vacuuming pipeline design and calculation, analysis and design of dust catcher, etc.In this paper, it through the analogy design methods, referred to principle scheme of the bridge cranes, and borrow ideas from design experience of crane, completed the design for mobile platform of blowing system, and its main content includes design for general structure , design for running system ,design for driving system , etc.