Centrifugal air compressor tilting pad bearing | Henan Haijie Technology

Centrifugal air compressor tilt pad bearing | Henan Haijie Technology To ensure the service life of the unit, a detailed maintenance plan must be formulated, and designated operations, regular maintenance, and regular inspection and maintenance must be performed to keep the air compressor unit clean, oil-free, and dirt. The replacement time of cooling lubricating oil in centrifugal air compressor accessories depends on the use environment, humidity, air compressor dust and whether there are acid and alkaline gases in the air. A newly purchased air compressor must be replaced with new oil during its first operating hours, and then once an hour according to the normal oil change cycle. Machines that operate less than 100 hours a year should be replaced once a year. The last point worth noting is that the centrifugal air compressor cooler needs to be inspected every three months. Clean the dust on the outer surface of the cooler, the fan cover, and the fan blades. Add lubricating oil to the motor bearings. Check that the hoses are There is no aging or cracking. Check the electrical components and clean the electric control box. Air compressor technicians are often exposed to various air compressor technical problems. For example, the centrifugal air compressor has been pumping normally during operation, but the pumping speed has slowed down recently, and the temperature difference between the upper plates of the cylinder head has become larger. , the pointer of the low-pressure cylinder exhaust pressure gauge swings greatly. Faced with this problem, Henan Haijie Compressor's senior after-sales service technicians have many years of experience to solve it. The editor has compiled some key points as follows. The first inspection that needs to be done is to stop the air compressor and remove the low-pressure cylinder on the upper part of the cylinder head. Cover the plate, take out the exhaust valve assembly, and pour diesel into the valve slot of the exhaust valve. This is easy to understand. A deep and narrow fuel tank is not conducive to the release of bubbles. In addition, the fuel tank is narrow and the distance between the oil return area and the oil suction area is short. The oil coming out of the oil return pipe is sucked away before the bubbles can be released, causing the bubbles to remain in the system. Inside. The obstruction of the oil flow caused by the mechanical structure can also cause bubble problems. For example, at the corners of the pipeline, the oil flow is restricted due to poor oil flow, etc., the air dissolved in the oil will be released to form bubbles. This situation will also cause the mechanical Cavitation and local high temperature of oil. Several implementation methods of anti-surge automatic control systems, fixed limit flow method and fixed limit flow anti-surge control system are to keep the flow rate of the compressor always greater than a certain flow rate, thereby avoiding operation in the surge zone. The advantage of this method is that the control system is simple and fewer instruments are used. The disadvantage is that when the compressor speed is reduced and the compressor is running at low load, the anti-surge control system is put into use too early, resulting in large return flow and large energy consumption.