Argon, helium recovery
Argon, helium recovery
Argon, helium recovery by the major components vacuum pumps, compressors, low tank, dryer, deoxygenation, solenoid valves, pressure controller, program controller, PLC and other components. The automatic control system.
The system first feature in a workpiece removing nitrogen air rail, and then filled with helium, leak into the workpiece. After the leak, the helium gas within the workpiece using a vacuum pump to extract the low-pressure tank, dryer. Deaerator tank by the low-pressure compressor helium pressure within the high pressure into the tank until the next cycle use. When the recycling system to reduce the amount of helium from the helium cylinder supply of fresh helium, the entire process to ensure stable long-term work.
Process each of the workpiece: vacuum packing → → helium leak pumped helium recovery → dry → → dryer off oxygen device
Second, the operation step sequence
Test catheter insertion. After starting the vacuum pump to achieve a degree of vacuum pump stops. Bright lights. Either manually enter the next step.
After reaching a degree of vacuum, filled with helium at a pressure of 1.3 ~ 2.6MPa. Bright lights after reaching the pressure.
Maintaining pressure helium leak.
After completion of the leak manually pump reaches a degree of vacuum, lights on, turn off the vacuum pump catheter pull test.
Recovery system, the compressor is automatically work. When the pressure is higher than the low-pressure tank 3000Pa automatically start the compressor. That stopped when the pressure is zero. The low-pressure compressor in accordance with a pressure tank decided to start or stop.
Third, technical indicators
1. After the vacuum pump deprived of air or nitrogen an absolute pressure of 20Pa
2. Vacuum pump helium absolute pressure of 20 ~ 50Pa
3. Filling helium pressure is 1.3 ~ 2.6MPA, leak pressure ≥0.6MPa
4. Each cycle helium recovery rate of not less than 95%
5. Manual and automatic and used in every job status lights are indicating.
6. Vacuum suction force is not less than 8L
7. It uses no oil hermetic compressors
8. High and low pressure compressor tank volume size should ensure the normal and safe working with pressure display.
9. High volume low pressure tank is not less than 70L
10 electrical components and control components are imported or domestic brand name products
11. Connecting tubes connecting with the work piece PT1 / 2 ", the length of header pipe 5000MM, the inner diameter ≥10M