According to the characteristics of VOCs escaping in the process of ship painting,a suction hood to prevent VOCs escaping was designed and a test bench was built.The velocity field of the de-signed suction hood was tested,and the distribution of wind speed at different distances was verified.Through the field test,the VOCs were effectively captured in the process of ship painting,and the e-mission of VOCs was reduced.Finally,the purification scheme of collected gas was put forward.In this scheme,the secondary regeneration and concentration technology is adopted,VOCs are concen-trated by rapid purging,moisture is separated,and then nitrogen is used for protection and regenera-tion.The two-stage concentration system is efficient,the condensate can be recycled,and the coating can be dried.
关键词
船舶修造涂装/VOCs可移动吸附装置/活性炭氮气再生技术
Key words
painting for shipbuilding and repairing/mobile adsorption device for VOCs/activated car-bon nitrogen regeneration technology
维普
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