Research and Analysis of Water Consumption in Automotive Painting Production Line and Water-Saving Optimization
The research and analysis of the water consumption in a certain automotive painting production line were carried out.The results showed that the highest water consumption is the industrial water needed for the cooling tower to replenish water,and its ratio is 45%of the total water consumption in paint shop.The followed is the industrial water required to produce DI water and RO water,which account for 23%and 20%respectively.The remaining main water consumption areas are skids cleaning and sludge water tank.Through a series of water-saving optimization countermeasures,such as the recycling of condensate water from air supply unit,optimization of the process water for pre-treatment and electrode position system,monitoring and analysis for using energy management systems(EMS),water leakage and venting lean management,etc.,the overall cost of water treatment and per vehicle manufacturing cost can be reduced effectively.
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