Design And Implementation Of Heating,Ventilation And Air Conditioning System Of Metro Simulation Training Device

With the rapid development of urban rail transit,the demand for relevant technical personnel is also increasing rapidly.However,the existing teaching equipment of rail transit for personnel training is outdated and can’t keep up with the pace of scientific and technological progress,which leads to poor training effect.Therefore,it is particularly important to design an advanced device for the training of rail transit personnel.Metro vehicle simulation training device is an advanced training device,it can solve the problems of high cost,large space requirement and low safety of the teaching equipment used in the traditional train.The device developed in this paper simulates and realizes the control principle of subway vehicle,it includes the network,traction,braking,HVAC(heating,ventilation and air conditioning)system,doors and all the other systems that are involved in the safety of train operation,and put the key parts into the cabinet of 5 meters.Compared with the traditional real car training mode,the simulated training device designed in this time has significant advantages such as high efficiency,safety and low cost.Using the simulation device designed in this time,the working principle,common faults and troubleshooting methods of metro vehicles can be easily studied.This thesis analyzes the function and basic working principle of the air conditioning system of metro vehicles,and puts forward the overall design scheme of the heating,ventilation and air conditioning system of the simulated training device in metro.Aiming at the problems in the HVAC system of metro vehicles in real vehicle training,the design simulation is carried out by reducing voltage,simplifying circuit and modularizing design.And realized 10 priority and automatic heating,cooling,dehumidification and other functions.This design is mainly from the main circuit,control circuit,electrical parts selection,system structure layout wiring,PLC control program and man-machine interface configuration aspects,in order to achieve the function and ensure the safe and stable operation of the system.