Collection and Treatment Scheme and Performance Evaluation of VOCs in Ship Painting
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.
painting for shipbuilding and repairingmobile adsorption device for VOCsactivated car-bon nitrogen regeneration technology
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维普
