Vacuum pump manufacturer: leakage between closed volumes of screw vacuum pump
Screw vacuum pump can extract a large amount of water vapor and a small amount of smoke steam, and its sealing capacity is easy to cause leakage problems in the application of mechanical equipment. At present, one should carefully study the internal and external aspects of surgery. The following is a detailed introduction to the calculation of leakage safety channel of mechanical equipment:
1、 Screw vacuum pump of leakage safety channel length of measurement
1. Leakage safety channel. The contact wire clearance is composed of axial clearance and tooth side clearance. The clearance on the tooth tip circle is composed of the rotor tooth tip circle surface and wall cavity.
2. The length and total area of each leakage shall be specified. When calculating the length of axial clearance and backlash L1, L2 and L3, the contact line formula of each segment should be calculated first.
3. The indoor space coordinates of each point on the touch network are calculated by tracking point method, and then the distance between these points is immediately accumulated to get the length of touch line. The higher the level, the more accurate the value.
4. The leakage between the sealing capacities is caused by the pressure difference on both sides of the gap and the rotation of the extruder screw. The former causes the working flow pressure, and the latter causes the cutting flow. The sum of the two is the flow.
2、 Screw vacuum pump of summary
1. According to the basic theory of gap energy, the limit vacuum value of screw vacuum pump is calculated.
2. Calculate the formula pressure, which is used to calculate the average leakage and average work between the closing capacities of mechanical pumps.
3. The internal work pressure and leakage of screw vacuum pump are calculated: the information shows that the work pressure and leakage decrease rapidly at the inlet end, and gradually decrease from the inlet end to the exhaust end with the decrease of the clearance.
4. according to the leakage error of the tip clearance and the leakage error of the axial clearance and the side clearance, the gap decreases continuously. When the clearance is lower than a certain value, the leakage of the nozzle will exceed the annular gap leakage.
Screw vacuum pump is widely used in pharmaceutical industry, chemical plant, semiconductor materials and other companies. It has high requirements for screw vacuum pump cleaning. Therefore, people need to maintain machines and equipment correctly, deal with difficult problems immediately, and prevent inconvenience in the normal maintenance process.
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