2XZ rotary vane vacuum pump

The 2XZ rotary vane vacuum pump is mainly composed of pump body, rotor, rotary vane, end cover, spring and so on. A rotor is eccentrically installed in the cavity of the rotary vane pump. The outer circle of the rotor is tangent to the inner surface of the pump cavity (there is a small gap between them). Two rotary vanes with springs are installed in the rotor groove, and the stator is divided into two working cavities (high and low working cavities). When rotating, the 2XZ rotary vane vacuum pump makes the top of the rotary vane by centrifugal force and spring tension. Contact with the inner wall of the pump chamber, rotor rotation drives the rotary blade to slide along the inner wall of the pump chamber, which makes the volume of the high-level working chamber expand periodically and suck air. The volume of the low-level working chamber shrinks periodically and compresses the gas. The exhaust valve is pushed open by the pressure of gas and oil to get the vacuum.

Then, what problems should we pay attention to when using 2XZ rotary vane vacuum pump? How does it work if it fails?

2XZ-C rotary vane vacuum pump

Application of 2XZ rotary vane vacuum pump:

1.before use, should carefully read the product manual, after opening the box should check the quality of shipment. Collect spare parts and technical documents, and remove exhaust protection. Installation, wiring and trial steering as required. The water pump is connected to the water.

2. In order to prevent fuel injection due to oil return and reversal, the opening of the pump should be opened first and the oil in the pump should be transferred to the tank by hand according to the regulations. At the same time, check the oil level, should be above the oil standard center, but do not fill the oil mark, more to be released.

3.auxiliary methods to judge turning. Put the sheath on the pump mouth, if it is sucked after pumping, it is forward and blown down, is the reverse. Normal voice is positive, abnormal voice is reverse.

4.if the valve is equipped with an inflatable solenoid valve at the pump port, it should be installed horizontally and simultaneously with the pump.

5. When the relative humidity is higher or the condensable steam such as water vapor can be extracted from the gas, the gas valve should be used.

6. According to the manual, vacuum pump oil is recommended. Note that ester vacuum pump oil can not be mixed with mineral oil vacuum pump oil and other oils, must be strictly cleaned before changing into ester vacuum pump oil.

7. Check the ultimate pressure of the pump with the compression mercury vacuum gauge as the criterion. The total pressure gauge should pay attention to the matching calibration and backup comparison regulation. It is suggested that a ball valve should be installed between the regulated and the tested pump. The time of regulation is extended when the valve is closed.

8.cleaning. It is not suitable to be washed, so that the free liquid enters the splice rotor and is not easy to discharge.

9.disassembly and assembly. In accordance with the instructions and regulations specified in the instructions, place them in good order and place them properly so as not to be wrong.

Troubleshooting for 2XZ rotary vane vacuum pump:

1.first of all, we need to know the type, characteristics and current situation of pumps. Understand usage requirements and determine repair objectives. Before the maintenance, prepare the testing means.

2.judge faults, diagnose faults. It is easy to judge correctly. Diagnosis should be verified.

3.troubleshooting, first and then complex, easy after the first difficult. No dismantling. To reduce the lack of dedicated tools and improper operation caused by new damage, reduce position changes and running time. Generally speaking, spliced rotor is not detachable, otherwise the shape and position tolerance will not be guaranteed, the rotor will be scrapped.

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