Principle and Application of Vacuum Drying Spare Parts Vacuum Pump
August 09, 2023
Vacuum oven spare parts vacuum pump principle and use:
1. The vacuum ultimate pressure of the pump unit is ultimate pressure PA, the pump means at the entrance of the cover with the standard test conditions according to the provisions work, without introducing gas under normal working, the lowest pressure tend to be stable.
2. Vacuum pump suction rate Pump pumping speed unit is M3 / S or L / S, is the pump equipped with a standard test cover, and work according to the provisions of the conditions, the gas flow through the test cover and the test cover The ratio of the equilibrium pressure measured at the specified location. Pump pumping speed.
3. Vacuum pumping capacity Vacuum pumping capacity unit is PA M3 / S or PA L / S. It refers to the pump inlet gas flow.
4. The starting pressure of the vacuum pump The starting pressure unit of the vacuum pump is PA, which refers to the pressure when the pump is started without any damage and has the pumping action.
5. Pump's Pre-Pressure The vacuum's pre-pressure unit is PA, which is the outlet pressure of a vacuum pump with an exhaust pressure lower than one atmosphere.
6. The maximum pressure before the vacuum pump The maximum pressure unit before the vacuum pump port is PA, which means that the pump can exceed the pressure before the damage.
7. The maximum working pressure of the vacuum pump The maximum working pressure of the vacuum pump unit is PA, which refers to the inlet pressure corresponding to the maximum pumping capacity. Under this pressure, the pump can work continuously without deterioration or damage.
8. Compression ratio Compression ratio is the ratio of the pump outlet pressure to the inlet pressure for a given gas.
9. Ho coefficient pumping pumping area on the actual pumping speed and the Department by molecular diarrhea calculated theoretical pumping speed ratio.
10. Pumping coefficient The actual pump pumping speed at the entrance to the pump by the molecular effusion calculated theoretical ratio of pumping speed.
11. Backflow rate The pump backflow rate unit is G / CM2.S. It refers to the pump when the required conditions work, through the pump inlet unit area pump flow mass flow rate.
12. Allowable amount of water vapor The allowable amount of water vapor is KG / H. It refers to the mass flow rate of water vapor that can be drained by the pump during normal operation under normal ambient conditions.
13. The maximum allowable water vapor inlet pressure Maximum allowable water vapor inlet pressure unit is PA. It refers to the maximum inlet pressure of water vapor that can be extracted by the gas-operated pump under continuous operation under normal environmental conditions.
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August 09, 2023
