china vacuum pumps,rotary vacuum pumps,vane vacuum pumps,rotary vane pumps,rotary vane vacuum pumps manufacturer & exporter and trade

with the Bias rotor cavity for rotary pumps at sports, so separated from the rotary vane pump cavity Studio cyclical changes in volume in order to achieve the exhaust of vacuum pumps, rotary vane, also known as vacuum pump. Rotary Vane Vacuum Pump works. Rotary Vane Vacuum Pump by pump body (stator) and rotor components. Rotor slot in the rotation with two or more films, among some Rotary Vane Pump is also equipped with a spring. Eccentric to the rotor installed in the pump cavity, the outer edge of the pump cavity and the gap between the top surface for 2 to 3 microns. The rotor spins, centrifugal force, such as the effect of rotary vane sliding back and forth along the trough for the pump chamber wall and always keep in touch, will pump chamber is divided into two or more variable volume of the studio. Rotor rotates clockwise, and the same inspiratory inspiratory mouth cavity volume increases from zero, to reduce gas pressure cavity, the gas was pumped continuously from the inspiratory mouth inhalation. At the same time, with the exhaust port connected to the exhaust cavity volume by the change in small, inhalation of the gas cavity is compressed when the gas pressure higher than atmospheric pressure, open the valve from the atmosphere. Rotor for rotation, have been the exhaust pump.
Exhaust valve immersed in oil, the oil through the exhaust valve and the hole into the pump cavity, pump cavity so that the surface of all moving parts covered with a layer of film, sealed with living breathing cavity space between the exhaust chamber to prevent gas back flow. These oil can reduce harmful exhaust cavity space so as to eliminate their impact on the ultimate stress. So the vacuum pump is a mechanical vacuum pump oil seal. With the technology, improve manufacturing processes and quality materials to choose from, small-scale rotary vane vacuum pump with the motor shaft axis Direct, speed can be up to 1450 r / min, greatly enhance the pump rate and reduced exhaust pump.
Rotary vane vacuum pumping speed range from 0.5 to 150 liters / second (1 L = 10-3 m 3), the scope of job stress is generally 1 × 105 ~ 1 Pa, the larger the pressure pumping speed range of 1 × 105 ~ 13 Pago. Limit stress: a single-stage pump for one Pago, two-stage pump for 6.5 × 10-2 Pa. Rotary Vane Vacuum extraction generally suitable for dry or contains a small amount of steam condensate to the gas (the latter have to the town gas valve installed), not suitable for oxygen extraction is too high, explosive, corrosive, oil-pumping effect on the chemical contain solid particles and gases. In a vacuum system, the pump can be used alone or as a booster pump, diffusion pumps pump the first class.