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What are the reasons for excessive oil in exhaust and how to deal with it?

1) The oil level of the screw is too high. If the oil level is too high, the fluctuation of the liquid level in the oil and gas drum will enter the oil with a large amount of gas during the operation of the unit, resulting in the increase of the order of magnitude of the oil treatment capacity, resulting in oil in the exhaust. Generally, after the shutdown is stable, the liquid level can be 2 / 3 of the liquid level mirror.

2) The oil subdivision has not been replaced for a long time or the oil is damaged. The oil is subdivided into glass fiber winding structure, and the glass fiber is used to capture small oil droplets. If the oil separator is not replaced for a long time, it will be saturated and the oil separation effect will be reduced. In addition, when the oil separator is opened, there is an obvious short-circuit crack, which indicates that the oil separator is invalid. When the oil is damaged, there will be obvious oil in the exhaust from the exhaust port.

3) The exhaust pressure is too low. If the exhaust pressure is too low, the oil treatment capacity will be relatively large, increase the oil burden, and there will be oil-bearing phenomenon in the exhaust. The pressure maintaining valve can be raised or closed, and the pressure holding of the ball valve can be improved.

4) The oil return pipeline is blocked. The oil separated by oil subdivision returns to the machine head through the oil return pipe. If the pipeline is blocked or the middle oil return check valve and the oil return port of the machine head are blocked, the exhaust will contain oil (the oil return check valve has also been installed reversely). Check the pipeline or add another return pipeline to the lower part of the balance weight (or check valve) of the intake valve.

5) For the external oil separator, if the O-ring of the central pipe is damaged or poorly installed, the oil and gas will be remixed, and the exhaust oil will also appear. The treatment method is to remove the central pipe and check whether the O-ring is installed and damaged.

6) The combination valve has trachoma, so that the oil and gas are mixed. If all problems are solved by the exclusion method, replace the combined valve test.

7) The oil and gas drum has manufacturing defects and poor primary separation. The secondary oil return volume is very large.

8) Poor oil products, high volatility and high exhaust temperature.