【正文】
. Its effect and status was introducted in chemical industry. Secondly, process of Polyvinyl chloride polymer was selected in the design. Mass balance and heat balance were finished, and the size and type of key equipments were selected. And methods of treating “Three Wastes”, electrical power supply, feedwater supply, heating were discussed. Ventilation Control in public works was accounted. Keywords: Polyvinyl chloride polymer(PVC),Polyvinyl chloride