Roots pumps are pumping equipment that is insensitive to the small amounts of water vapor and dust contained in the gas being pumped, but it has the features of quick start-up, high work efficiency and high pumping speed, which makes it capable of long-term based on the pump industry important reason. Roots pumps used in the work are models ZJ-30, ZJ-70, ZJ-150, ZJ-300, ZJ-600, then these models will be analyzed and introduced. Roots pump model 1, ZJ-30: Suction rate (L / S): 30; The ultimate pressure (Pa): 5 × 10-2; The maximum allowable pressure difference (Pa): 5300; 2940; Air inlet: 50; Exhaust port: 40; Net weight (kg): 75; Equipped with power (kW): 0.75; 2. ZJ-70: L / S: 70; (Pa): 5 × 10-2; The maximum allowable pressure difference (Pa): 5300; Rotation speed (r / min): 2940; Air inlet: 80; Exhaust port: 50; Net weight (kg) Power (kW): 1.1; 3. ZJ-150: L / S: 150; Limiting pressure (Pa): 5 × 10-2; maximum allowable pressure difference / min): 2900; Air inlet: 100; Exhaust port: 80; Net weight (kg): 215; Equipped with power (kW): 2.2; 4. ZJ-300: 300; The ultimate pressure (Pa): 5 × 10-2; The maximum allowable pressure difference (Pa): 4500; The rotational speed (r / min): 2900; Air inlet: 150; Exhaust mouth: 100; Net weight (kg) : 480; With the power (kW): 4; 5, ZJ-600: Aspiration rate (L / S): 600; The ultimate pressure (Pa): 5 × 10 -2; The maximum allowable pressure difference (Pa): 4000; Speed ​​(r / min): 2900; Air inlet: 200; Exhaust port: 150; Net weight (kg): 503; ; Through the above description of five types of Roots pumps, Roots pump we have a more profound understanding. Although Roots pump a lot of shortcomings, but with the professional understanding of the Roots pump further research and technology support, I believe Roots pump the future will be getting better.
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