液环泵在纸机湿部真空系统的应用

液环泵选型不当、前后管路或相关设备设计不合理，造成纸机各真空点真空度不稳定、电机过载、纸机耗电量高、运行不正常，这些情况在现有造纸生产线上屡见不鲜。白热化的市场竞争和国家的节能减排政策成为造纸企业进行节能控制和节能改造的内、外在推动力。通过选用高效低速的液环泵，并对气量进行合理的计算和修正，控制好管路的流速和布置方式，设置必要的前置分离器，为液环泵和纸机的高效、平稳、可靠地运行创造条件。以上措施可以为新上纸机项目或旧纸机改造时液环泵的选型和真空系统设计提供参考。

Application of Liquid Ring Pump in Wet-end Vacuum System of Paper Machine

Improper model selection of liquid ring pump,irrational design of pipelines or related equipments would lead to unstable vacuum at each vacuum point of paper machine,motor overload,high electricity consumption and abnormal operation. These situations are of common occurrence in existing papermaking production line. Intense market competition and promotion of national energy conservation and emission reduction policy become the internal and external motivation to energy saving control and reconstruction for ...