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The oil mist lubrication system is mainly used for lubricating friction pairs such as rolling bearings, sliding bearings, gears, worm gears, sprockets, and sliding guides in industries such as petroleum, petrochemicals, metallurgy, machinery manufacturing, and light textiles. The main lubrication equipment includes centrifugal pumps, motors, fans, crushers, grinders, dryers, rolling mills, textile machines, etc. The oil mist lubrication system consists of two separate systems, a primary one and a secondary one, each responsible for generating oil mist. The host is equipped with automatic control systems; the main control components include a PLC controller, a display screen, level sensors, temperature sensors, pressure sensors, concentration sensors, etc. It can perform the following functions: 1. Automatic oil refilling function. It monitors the fuel tank level in real time, and automatically refills the tank when the low-level threshold is reached. 2. Automatic heating for oil and gas to maintain a constant temperature throughout the year ； 3. Air pressure safety protection. When the system’s intake pressure is too low, the system’s protection heater is prevented from being damaged. 4. Human-computer dialogue function. It can not only monitor system operation data in real time and change system settings, but also retrieve information on past operations. 5. Enable remote control. Advantages of oil mist lubrication: 1. Oil mist possesses a certain pressure, which provides a degree of sealing within the bearing chamber; it prevents dust, rust, corrosion, and the intrusion of external contaminants, keeping the bearings clean and enabling them to operate continuously in harsh environments. 2. The centralized oil mist lubrication system eliminates the need for point-to-point manual lubrication; a single main unit is sufficient to ensure that a large number of lubrication points located in various locations receive lubrication in a timely manner, thereby improving the level of automated production and management. 3. Oil mist lubrication eliminates the need to fill the bearing chamber with lubricating oil, thereby removing the heat generated by friction from the lubricant. It also avoids the potential risks associated with moisture or residues in the lubricant due to its repeated use, resulting in a reduction in the bearing’s operating temperature by 5–10°C and extending the bearing’s lifespan by up to 5 times.