液环真空泵为真空配套尾气抽出系统，其选型受前序真空喷淋和喷射设计影响，

The liquid ring vacuum pump is a vacuum supporting exhaust gas extraction system, and its selection is affected by the previous vacuum spray and spray design, which determines the amount of exhaust gas inhaled. In the design and actual operation, reducing the spray temperature of the scraper condenser and optimizing the distribution of the scraper spray liquid can effectively reduce the exhaust gas volume. After optimization and transformation of the scraper condenser and jet pump, the vacuum system load of the polyester plant can be effectively reduced, and the amount of air that needs to be sucked by the liquid ring pump will be reduced accordingly. It is expected that the power of the vacuum pump motor will be saved by about 10kW. If the pre-condensation upper chamber tail gas is directly sent to the final polycondensation system, it is expected to save about 14kW of power.

Liquid ring vacuum pump is a vacuum supporting exhaust extraction system, and its selection is influenced by the front-order vacuum spray and injection design, which determines the amount of exhaust gas it is inhaled. In the design and practical operation, reducing the spray temperature of the scraper condenser and optimizing the distribution of the scratcher spray fluid can effectively reduce the exhaust gas volume. After the optimization and modification of the scraper condenser and injection pump, the vacuum system load of the polyester device can be effectively reduced, the amount of air that needs to be pumped by the liquid ring pump will be reduced accordingly, and the power of the vacuum pump motor is expected to be reduced by about 10kW. It is expected to save about 14kW of power if the pre-shrink upper chamber exhaust is fed directly into the final shrinkage system.

Liquid ring vacuum pump is a vacuum exhaust extraction system, and its selection is affected by the design of pre vacuum spray and spray, which determines the amount of exhaust gas inhaled. In the design and practical operation, reducing the spray temperature of the scraper condenser and optimizing the spray liquid distribution of the scraper can effectively reduce the tail gas volume. After the optimization and transformation of scraper condenser and jet pump, the vacuum system load of polyester plant can be effectively reduced, and the air volume to be pumped by liquid ring pump will be reduced accordingly. It is expected that the power of vacuum pump motor will be saved about 10kW. If the tail gas from the upper chamber of pre polycondensation is directly sent to the final polycondensation system, it is expected to save about 14 kW of power.<br>