The air compressor is generally used in large gas volume occasions. The matched motor power is relatively large, the frequent start and stop has a great impact on the power grid, the current is large during start-up, the heating capacity of motor coil is also relatively large, and the motor is easy to burn if it is started and stopped too frequently. The following describes how to avoid frequent start and stop of air compressor.

1、空气压缩机机组油系统清洗调整合格，油质化验合乎要求，储油量适中。检查主油箱、油过滤器、油冷却器，油箱油位不足则应加油。检查离心空压机油温若低于24℃，则应使用加热器，使油温达到24℃以上。油冷却器和油过滤器也应充满油，放出空气，油冷却器与过滤器的切换位置应切换到需要投用的一侧。

1. The cleaning and adjustment of the oil system of the air compressor unit are qualified, the oil quality test meets the requirements, and the oil storage is moderate. Check the main oil tank, oil filter and oil cooler. If the oil level in the oil tank is insufficient, add oil. Check the oil temperature of centrifugal air compressor. If it is lower than 24 ℃, use heater to make the oil temperature above 24 ℃. Oil cooler and oil filter shall also be filled with oil and air shall be discharged. The switching position of oil cooler and filter shall be switched to the side to be put into use.

2、检查空气压缩机主油泵和辅助油泵，确认工作正常，转向确。油温度计、压力表应当齐全，量程合格，工作正常。用干燥的氮气充入蓄压器中，使蓄压器内气体压力保持在规定数值之内。调整油路系统各处油压，达到设计要求。检查油系统各种联锁装置运行正常，确保空压机的正常稳定。

2. Check the main oil pump and auxiliary oil pump of the air compressor to confirm that they work normally and turn correctly. The oil thermometer and pressure gauge shall be complete, with qualified measuring range and normal operation. Fill the accumulator with dry nitrogen to keep the gas pressure in the accumulator within the specified value. Adjust the oil pressure of the oil circuit system to meet the design requirements. Check that various interlocking devices of the oil system operate normally to ensure the normal and stable operation of the air compressor.

3、将工艺气体管道上的阀门按起动要求调到一定的位置，一般空压机的进出口阀门应关闭，防喘振用的回流阀或放空阀应全开，通工艺系统的出口阀也应全闭。各类阀门的开关应灵活准确，无卡涩。

3. Adjust the valve on the process gas pipeline to a certain position according to the starting requirements. Generally, the inlet and outlet valves of the air compressor shall be closed, the return valve or vent valve for anti surge shall be fully opened, and the outlet valve to the process system shall also be fully closed. The switches of various valves shall be flexible and accurate without jamming.

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