What are the hazards of liquid in the compressor gas? What are the main reasons? How should it be handled?

When a liquid is incompressible, liquid hammer occurs, producing a loud impact sound and an increase in current. Reason: High gas temperature, water in the raw material gas used in the carbonization process, cracks in the cylinders allowing water to seep in, and untimely removal of oil and water. It is necessary to identify the causes promptly and take action to address them

Compressors operating with liquid present pose significant risks, as liquids are not easily compressible. If water is in the compressor cylinders, it can cause liquid slugging, damaging components such as the cylinder walls and pistons, and even leading to catastrophic accidents like explosions. The reasons for liquid presence were well explained upstairs; it’s necessary to strengthen management and improve quality standards

During operation, if liquid enters the compressor, the incompressibility of the liquid causes intense collisions within the cylinder as a result of the force exerted by the piston. This leads to severe vibrations in the compressor, loud noise, as well as fluctuations in the motor current. If a small amount of liquid is present, it will reduce the compressor’s air delivery volume ； If severe liquid leakage occurs and is not addressed promptly, it can easily lead to damage to the compressor and its components. Main reasons: 1. Water enters the gas stream, or the temperature of the gas is too high resulting in a high vapor content; upon cooling, condensation water is formed, and the water is not drained in a timely manner. 2. The compressor has liquid in the three inlet ports, and moisture from these inlets is not drained in a timely manner. 3. The compressor has liquid in its six inlet ports; the copper tower has a high liquid level with liquid present as well. The separation unit for copper separation and the compressor’s six inlet ports do not discharge the liquid in a timely manner. 4. Cracks in the compressor cylinder allow cooling water to seep into the cylinder. Remedial action: If liquid is found in the compressor, the drain valve of the separator containing the liquid should be opened promptly to drain out the oil and water. If there is severe liquid carryover, immediately press the stop button to shut down the compressor for treatment.

Dangers of compressed gas containing liquid: During the operation of a compressor, if liquid enters the cylinder, its incompressibility causes intense impacts within the cylinder as a result of the force exerted by the piston, leading to severe vibrations of the compressor body and loud noise. At the same time, the motor current fluctuates and increases. A slight amount of liquid in the compressor can reduce the gas delivery volume. If severe leakage occurs and it is not addressed in a timely manner, it may cause the piston rod, connecting rods, connecting rod bolts, crankshaft, etc. to break, or it may damage the cylinder head and piston; in severe cases, it can lead to complete destruction of the compressor. Reasons for liquid in the compressor gas: 1. The gas coming out of the desulfurization system contains water; or the gas temperature is too high and the water vapor content is excessive, resulting in condensation water after cooling. Meanwhile, if the buffer tank at the inlet of stage 1 of the compressor does not release water in a timely manner, this water ends up entering the cylinder of stage 1 of the compressor. 2. The raw material gas entering the carbonization system contained water, and at the same time, the water separator at the inlet of stage 3 of the compressor failed to discharge water in a timely manner, allowing water to enter the cylinders of stage 3 of the compressor. 3. An excessively high liquid level in the copper washing tower, or inadequate drainage of the liquid accumulated in the copper liquid separator, can cause copper liquid to enter the compressor cylinder. 4. Cracks in the compressor cylinder allow water inside the jacket to seep into the cylinder, resulting in water contamination. 5. The oil and water from various sections of the compressor are not drained in a timely manner; excessive amounts of oil and water accumulate and are carried into the cylinders by the gas, resulting in liquid contamination incidents. Handling method: 1. When the compressor has a slight amount of liquid in it, it is necessary to immediately determine which cylinder contains liquid. Quickly open the oil drain valve and vent valve for that cylinder to remove all the liquid from it, and contact the relevant personnel to handle the situation. 2. If severe liquid carryover occurs in the compressor, shut it down immediately and check whether any components are damaged. Open the valves simultaneously to drain the liquid from the cylinders and pipes, and contact the relevant teams to handle the situation; restart the operation only after all accidents have been resolved.

It can easily cause water shock and water erosion, damaging the equipment