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Hypersonic hair dryer wholesaler.Characteristics of vacuum pumps

Time:2023-11-03 Views:1

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  (1) There is a large pumping speed within a wide pressure range;

  (2) The rotor has good geometric symmetry, resulting in low vibration and smooth operation. There are gaps between the rotors and between the rotor and the shell, without lubrication. The friction loss is small, which can greatly reduce the driving power and achieve higher speeds;

  (3) The pump chamber does not require oil sealing and lubrication, which can reduce the pollution of oil vapor on the vacuum system;

  (4) There is no compression or exhaust valve in the pump chamber. Simple and compact structure, insensitive to dust and water vapor in the extracted gas;

  (5) Low compression ratio, poor hydrogen extraction effect;

  (6) The surface of the rotor is a complex curved cylindrical surface, which is difficult to process and inspect.

  How to choose vacuum equipment

  1. The maximum vacuum level that the vacuum chamber needs to reach when empty. Determine the type of main vacuum pump based on the limit vacuum required for the vacuum chamber. The limit vacuum of the main pump is selected to be higher than the limit vacuum of the vacuum chamber, usually by half an order of magnitude to one order of magnitude.

  2. Select the main pump according to the working pressure required for process production (or experiment) in the vacuum chamber.

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