Direct rotary vane pump principles and precautions
March 03 15:10:44, 2023
1. Direct-coupled rotary vane pump working principle and structure The pump is a volumetric pump, which by virtue of the vane in the pump chamber continuous operation, the pump chamber is divided into two different regions of the vane volume expansion and contraction of the cycle , While the gas suction, compression and discharge, to achieve the container is evacuated. The pump is composed of two studios before and after the series in the same direction to rotate at the same speed, was pumping gas from the anterior pumping chamber, after compression is discharged into the post-stage pump chamber and then compressed, the discharge pump chamber through the mist eliminator discharge pump outer. 2. Direct-coupled rotary vane pump usage and precautions ①Unscrew the fuel plug first, refuel from the hole to the oil 2/3 (due to the shipping relationship between the pump chamber without pumping oil poured). After adding a little pump oil from the inlet pipe hole (may be due to the factory time is too long, causing the pump chamber to dry) to pump the pump cavity to avoid bite death, fever after boot. Pump oil selection of a vacuum pump oil, light car can also choose to import high-grade gasoline instead, such as: Shell car engine oil. ② According to the provisions of the power cord (three-phase motor should pay attention to the direction of rotation of the motor should be consistent with the direction of the arrow on the pump bracket), remove the rubber cap on the exhaust pipe 17, air run, and then start working properly. ③ and the pump inlet pipe connection pipe should not be too long, be sure to check the vacuum pump connection pipe, fittings and containers must not leak, to be sealed. Otherwise, it will affect the ultimate vacuum and the life of the vacuum pump. ④ pump working environment: the temperature range of 5-40 ℃, the relative humidity of not more than 85%, inlet pressure less than 1.3 × 103Pa working conditions for the pumping speed of 0.5L / s vacuum pump above, are equipped with gas-town valve. If the relative humidity is high, you can open the gas valve purification, to purify the pump oil and pump oil to extend the use of time. Purification promptly shut down after the death. ⑤ continuous pumping of the pump exhaust open atmosphere, shall not exceed 3min.
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