Compressed air is derived from moist air, and its pressure and temperature increase during compression, which can easily lead to the precipitation of liquid water, forming a gas-liquid two-phase flow. It may also contain oil contaminants, solid particles, and vibration interference from compressors. Its quality depends on dryness, dust content, and oil content, requiring drying (adsorption-type dr...

Air compressors are increasingly being utilized in the medical field. As an essential air supply device for dental units, oil-free compressors have been fully adopted abroad, providing oil-free, odorless, hygienic, clean, and dry green air sources. The development of dentistry in China will also drive another wave of growth for oil-free compressors.     It is reported that in dental trea...

1. For oil leaks in the air compressor, pay attention to the oil seal area and check whether the oil seal is cracked or if the inner lip is split or folded. Replace the oil seal if any of these issues are present. Inspect the contact surface between the oil seal and the main shaft for scratches or defects—replace if damaged. Check whether the oil return is unobstructed. Poor oil return can cause e...

Screw air compressor refrigerated air dryers are mainly divided into two types: refrigerated and adsorption-type. The most common one is the refrigerated air dryer (referred to as a "cold dryer"), which is one of the post-processing equipment frequently used by many customers when operating screw air compressors. So, what exactly is the function of a refrigerated air dryer?     The prima...

In recent years, permanent magnet variable frequency motors have been increasingly applied in the air compressor industry, with their market share rising significantly. Permanent magnet air compressors have become mainstream products, and many users are replacing traditional fixed-speed (constant-frequency) air compressors with permanent magnet models. But why has the permanent magnet air compress...

In daily use of compression equipment, the cleaning of the equipment is of particular concern, as its proper operation directly impacts production efficiency. Therefore, the removal of dirt on related components is especially critical. For general air compressor radiators, the accumulated grime not only comes from oil residues exacerbated by temperature changes during compression but also from env...

1. Pre-Installation Testing Before installation, safety valves must undergo pressure resistance testing and leak-tightness testing to verify structural integrity and sealing performance. Only after passing these tests can calibration and adjustment proceed. 2. Setting the Opening Pressure On a gas test bench, adjust the load applied to the valve disc to calibrate the opening pressure: Lever-type s...

Coal enterprises are major consumers of electricity, with power consumption accounting for a significant portion of production costs. Studies indicate that equipment such as fans, water pumps, compressors, hoists, and gas drainage systems consume over 40% of the total electricity used in coal mining operations. The development of variable frequency drive (VFD) technology effectively addresses issu...