The screw vacuum pump seals the leakage between the volumes

How to solve the leakage problem between the closed volume of screw vacuum pump
Screw vacuum pump can extract a large amount of water vapor and a small amount of vapor smoke, its sealing ability in the application of mechanical equipment is easy to cause leakage problems. At present, people should carefully study the inside and outside of surgery. The following is a detailed description of the calculation of mechanical equipment leakage safety channel:
I. measurement of leakage safety channel length of screw vacuum pump
1. Leak safety channel. The contact line clearance is composed of axial clearance and tooth side clearance, and the clearance on the tooth top circle is composed of the motor rotor tooth top circle surface and wall cavity.
2. The length and total area of each leakage shall be specified. When calculating the lengths L1, L2 and L3 of axial clearance and tooth side clearance, the contact line formula of each section of figure should be calculated first.
3. Calculate the indoor space coordinates of each point on the touch network with the tracking point method, and then immediately add the distance between these points to get the length of the touch line. The higher the level, the more accurate the value.
4. The leakage between the sealing capacities is caused by the pressure difference between the two sides of the clearance and the rotation of the extruder screw. The former results in working flow pressure, the latter in cutting flow. The sum of the two is the flow.
Ii. Screw vacuum pump summary
1. Calculate the ultimate vacuum value of the screw vacuum pump based on the basic theory of clearance.
2. Calculate the pressure formula, which is used to calculate the average leakage and average work between the closing capacity of the mechanical pump.
3. The internal power pressure and leakage amount of the screw vacuum pump are calculated: the information shows that the power pressure and leakage amount decrease rapidly at the inlet end and gradually weaken from the inlet end to the exhaust end as the clearance decreases.
4. According to the leakage error of the tip circle clearance and the leakage error of the axial clearance and the tooth side clearance, the clearance decreases continuously. When the clearance is lower than a certain value, the nozzle leakage will exceed the annular clearance leakage.
Screw vacuum pump is widely used in the pharmaceutical industry, chemical plants, semiconductor materials and other industries, screw vacuum pump cleaning has a high demand. Therefore, people need to maintain machines and equipment properly, deal with difficult problems immediately, and prevent inconveniences during normal maintenance.

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