Vacuum pump manufacturer: screw vacuum pump leak - between the closed volume

screw vacuum water pump can take out a large amount of water vapor and a small amount of smoke steam, close its capabilities in the application of mechanical equipment is easy to cause leakage problem. At present, people should study surgical internal and external. The following is a mechanical equipment leakage safe passage to calculate in detail:

1. Secure channel leakage. Contact line made up of axial clearance and backlash clearance, clearance by the motor rotor on the addendum circle of addendum circle surface and wall of cavity.

2。 Every time should stipulate the length of the leak and the total area. In calculating the length of the axial clearance and backlash L1 and L2 and L3, should first contact line formula for computing the each period of graphics.

3。 Touch each point on the network with tracking point method to calculate the interior space coordinates, then immediately accumulation of the distance between these points, get the length of the touch line from to. The rank, the greater the value more accurate.

4。 On either side of the sealing capacity of leakage is the gap between the pressure difference and the rotation of the extruder screw. The former in work flow stress, which lead to cut traffic. Is the sum of the traffic.

1. According to the basic theory of clearance to calculate the limit of the screw vacuum pump vacuum value.

2。 A formula to calculate pressure, is used to calculate the mechanical pump closing capacity between the average leakage and work.

3。 Calculated the internal work pressure of screw vacuum pump and leakage: information shows that the work pressure and leakage on the inlet side decrease rapidly, and with the decrease of the gap from the inlet end to exhaust side gradually weakened.

4。 According to the addendum circle clearance and axial clearance leakage error and backlash error of leakage, clearance and decreases, when the gap below a certain value, the nozzle leakage will exceed the annular clearance leakage.

screw vacuum pump is widely used in the pharmaceutical industry, chemical industry, companies such as semiconductor materials, cleaning has a high requirement for the screw vacuum water pump. Therefore, people need to properly maintain machines and equipment, immediately deal with difficult problems, and to prevent the occurrence of inconvenience in the process of normal maintenance.