Rotary Vacuum Pump of Actual Vacuum Oil Level

Rotary vane vacuum pump (Rotary vane pump) is an oil-sealed mechanical vacuum pump. The working pressure ranges from 101 325 to 1.33 x 10_Pa, which belongs to low vacuum pump. It can be used alone or as the front pump of other high vacuum pumps or ultra-high vacuum pumps. It has been widely used in metallurgy, machinery, military industry, electronics, chemical industry, light industry, petroleum, medicine and other production and scientific research departments.

Rotary vane vacuum pump can set the upper and lower limits of the required vacuum. When the vacuum reaches the upper limit, the pump will stop automatically, and when the vacuum drops to the lower limit, the pump will start automatically. The oil level of rotary vane vacuum pump needs to be checked regularly. To check the oil level of the rotary vane vacuum pump, the oil level should be in the center of the oil mark of the rotary vane vacuum pump. The oil level is too low to seal the exhaust valve, which will affect the vacuum degree. If the oil level is too high, it will cause fuel injection when starting. In the specific operation, the following points should be paid attention to.

Before the rotary vane vacuum pump runs, take off the triangle belt first, turn the motor to correct, and then start, so as not to inject oil. When running, the oil level rises slightly, which is a normal phenomenon. When the oil quantity is insufficient, vacuum pump oil is used and added from the filling hole. Oil must be filtered to prevent impurities from entering and blocking oil holes.

Rotary vane vacuum pump outlet, such as mounted solenoid valve, should be operated with the pump at the same time. When starting the rotary vane vacuum pump, the start button should be first or twice activated to make the oil pressure in the pump chamber into the oil tank, and then start the operation formally. When the ambient temperature is higher, the oil temperature of rotary vane vacuum pump increases, the viscosity decreases, and the saturated steam increases, which will cause the limit vacuum to drop. Therefore, ventilation and heat dissipation should be strengthened. Rotary vane vacuum pumps with air ballast valves are used when there is more condensable steam in the suction gas.

Before shutting down the rotary vane vacuum pump, the valve at the suction port should be closed to isolate it from the vacuum system, and then the pump should be shut down to check the limit vacuum of the rotary vane vacuum pump. The compressed vacuum gauge should be used. The vacuum gauge should be connected directly with the pump port of the rotary vane vacuum pump. It will reach the limit vacuum within 30 minutes. Before starting, check whether the cooling water of the water-cooled pump can be connected. When the ambient temperature is low, the belt pulley can be moved by hand so that the oil in the pump chamber can be discharged into the tank. Then press the motor button to send electricity, pay attention to whether the direction of power supply can be reversed, whether the direction of pump rotation is correct.

At the same time, the rotary vane vacuum pump can also adjust the vacuum required in practical work. It can set and display the vacuum (negative pressure) value in real time through the integrated digital liquid crystal panel. The flow rate of the vacuum pump can be adjusted in size. The rotary vane vacuum pump is equipped with high sensitivity import sensor, high quality flow regulating valve and precise control circuit to complete the automatic regulation. Functions, greatly saved the time and energy of developers; Rotary vane vacuum pump built-in low interference, long-life micro-vacuum pump; with the special silencing system of micro-air pump and independent shock absorption system, to ensure that intelligent vacuum pump can work for a long time, low noise and reliable.

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