49214430 Ingersoll Rand High-Pressure Coolant

The invention and use of screw air compressors have significantly advanced the process of modern industrialization. Their primary function is to absorb air from the atmosphere and utilize mechanical energy to continuously provide a pressure source for the entire system. The technical advantages of screw air compressors are very evident: fast startup, low maintenance costs, and rapid operation, among many other benefits. These advantages make screw air compressors widely applicable in various industries such as factories, mines, and construction. So, how can we ensure the operational efficiency and service life of screw air compressors achieve optimal results? Below, we will explore the key points of using and maintaining screw air compressors.

1. Pre-startup Inspection

Before starting the screw air compressor, it is essential to conduct a thorough inspection of the power lines, machine door locks, and whether the oil level meets standards to ensure the safe operation of the equipment.

2. Key Points During Operation

After startup, it is important to constantly monitor the screw air compressor for any abnormal vibrations or noises. If oil leaks or air leaks occur, the machine should be shut down immediately for inspection. Additionally, after the compressor starts, do not loosen pipeline plugs or open unnecessary valves. Furthermore, if the equipment's temperature becomes too high or the oil level drops significantly during operation, it should be shut down immediately.

3. Regular Cleaning and Maintenance

Since the lubricating oil in screw air compressors often condenses moisture due to the cooling effect of the cooler, it is necessary to regularly drain and clean the water after a period of use. Otherwise, the moisture can be carried into the subsequent circulation system by the gas, causing operational abnormalities. Moreover, as the air contains dust, it accumulates on the surface of the air filter. Therefore, the air filter at the intake must be cleaned to prevent clogging. The oil level parameters of the screw air compressor should also be regularly recorded, and lubricating oil should be replenished promptly when the oil level decreases to avoid wear on gears and other components.

In summary, to maintain the operational efficiency and service life of screw air compressors, it is necessary to conduct inspections and maintenance from multiple aspects during use. This includes cleaning various components, adding lubricating oil, and monitoring wear between parts, among other details. Of course, the key points of using and maintaining screw air compressors are not limited to the above; more relevant information can be found in the machine's user manual and documentation.

The air filter serves as the defense line in the air compressor system to maintain clean air. Its function is to prevent air particles and impurities from entering the air compressor through filtration efficiency and resistance. If this defense line is breached, the air compressor will operate in a polluted environment, leading to frequent issues as a result.

1. Waterproof Performance: As is well known, the air contains a large amount of moisture, and the moisture content in the air is even higher on rainy days. If the air filter's waterproof performance is poor, it is prone to moisture absorption, which can affect the smooth intake of the air compressor. The air filter may bend or even clog, resulting in wasted electricity.

2. Filtration Precision: If the air filter's filtration precision is low, a large amount of fine dust will be sucked into the air compressor, contaminating the "blood" of the air compressor—the lubricating oil. This, in turn, affects core components such as rotors and bearings, leading to reduced efficiency and shortened lifespan of the main unit. The dust may also enter the oil filter, increasing its burden and, in severe cases, causing the oil filter to clog and triggering a high-temperature shutdown of the air compressor. If it enters the oil separator, it can cause clogging and, in severe cases, deformation of the oil separator, resulting in oil leakage from the air compressor.

3. Air Permeability: If the air filter's air permeability is unsuitable, the direct manifestation is collapse due to suction, leading to wasted electricity.

From this, it is evident that selecting the right air filter is particularly important. So, what characteristics should an air filter have?

1. High filtration efficiency to effectively ensure the operation of the air compressor;

2. Low intake resistance to provide sufficient air for the air compressor;

3. Strong dust storage capacity to reduce the frequency of air filter maintenance and lower usage costs.

What key points should be noted during the design and manufacturing process of air filters? The primary task of an air filter is to ensure sufficient protection for the air compressor to avoid wear under imaginable dust conditions. In other words, the filtration efficiency should be so high that the wear pattern of an air compressor equipped with the filter is the same as that of an air compressor operating under dust-free conditions. The performance parameter related to dust penetration is called filtration efficiency, which is the ratio of the dust separated by the air filter to the total dust supplied.

The air filter creates resistance to airflow. As dust accumulates, the resistance increases. When the resistance reaches a specified value, the air filter must be discarded. "Initial resistance" refers to the resistance of a new air filter, while "final resistance" is the resistance value at which the air filter is discarded. During design, a representative resistance value is often needed to calculate the system's design air volume. This resistance value is called "design resistance," which is typically the average of the initial and final resistance values.

The dirtier the air filter, the faster the resistance increases. An excessively high final resistance value does not mean the air filter's service life will be significantly extended, but it will sharply reduce the air intake volume of the air compressor system. Therefore, there is no need to set the final resistance value too high. In most cases, the final resistance is 2 to 4 times the initial resistance.

Low-efficiency air filters often use wood pulp fibers with an air permeability of over 500. Due to the large gaps between fibers, excessive resistance may blow away the accumulated dust on the filter. In such cases, the resistance increases, but the filtration efficiency drops to zero. Therefore, it is essential to strictly limit the final resistance value of air compressor air filters.

In summary, selecting the right air filter will extend the service life of the oil separator, significantly reduce overall operating costs, and avoid losses such as shortened maintenance cycles and machine damage.