The heat exchange network in a certain VCM and PVC plant are diagnosed and retrofitted.The energy saving potential of each plant is calculated as 11% and 60%,respectively.

• 利用夹点技术对某氯碱企业的VCM和PVC装置的用能状况进行了分析,定量计算了生产系统的最大节能潜力,并完整定位出系统用能不合理的位置。