High vacuum Roots vacuum unit Foam forming machine JZJ2B30-5(6)110 Roots water ring vacuum unit

summary

 JZJ 2 B series Roots liquid ring unit is ZJ Lots pump as the main pump, 2 BV series water ring pump or Roots water ring unit as the front pump composed of the pumping unit. In addition to it can be used to remove the general gas, it can also suck the gas containing water, organic solvents or a small amount of dust. Compared with the general mechanical vacuum pump, it is not afraid of oil pollution, not afraid of water gas and dust, and compared with the general water ring vacuum pump, it has the characteristics of high vacuum degree and large pumping speed under the vacuum degree condition.

 JZJ 2 B series Rotz liquid ring vacuum unit adopts funny energy saving 2 BV series water ring pump as the front pump, so JZJ 2 B series vacuum unit has the advantages of high efficiency, compact structure, no leakage (2 BV pump is mechanical sealing design, different from the 2SK series of root seal), corrosion resistance (2 BV uses stainless steel or aluminum bronze impeller), high protection level.

 Rots vacuum pump adopts the ZJ series Roots vacuum pump developed by our company. After improving the ZJ series Lots vacuum pump, the pump oil is not easy to emulsification in the process of extracting a large amount of water vapor and various solvents.

The front pump working fluid of the ts ring vacuum unit mostly uses water, organic solvents (methanol, ethanol, xylene, acetone, etc.) or other liquids. The use of the front pump as a closed circuit circulation system greatly reduces the pollution to the environment, and colleagues also significantly improve the recovery of organic solvents. whose ultimate vacuum is determined by the saturated vapor pressure of the working liquid.

Performance parameter table

Note for unit type selection

① Understand the composition of the pumped gas, whether the gas contains condensable steam, whether there is particle dust, whether corrosive, etc. When selecting the vacuum pump, it is necessary to know the gas composition and select the corresponding pump for the pumped gas. If the gas contains steam, particles and corrosive gas, auxiliary equipment, such as condenser and dust collector, etc., should be installed on the inlet pipe of the pump.

② The working pressure of the Roots vacuum unit should meet the requirements of the limit vacuum and working pressure of the vacuum equipment. For example, a vacuum drying process requires a working pressure of 10mmHg (absolute pressure), and the limit pressure of the vacuum pump should be at least 2mmHg, preferably less than 1mmHg. Usually, the ultimate pressure of the selected pump is half to an order of magnitude higher than the working pressure of the vacuum equipment.

③ Correct select the working point of the Roots vacuum unit, the normal operating range is the maximum suction pressure to limit pressure X 5. Example: JZJ2B150-70-5111, the normal working pressure range of the rots liquid ring vacuum unit, the unit is more efficient within this range.

④ Under its working pressure, the vacuum unit shall be able to discharge all the gas amount produced in the process of the vacuum equipment.