Safety Technical Instructions for Air Compressors

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1. Fixed air compressors must be installed firmly and stably, with foundations that meet the specified requirements. After placing the mobile air compressor, it should be kept level and its tires should be tightened. 2. The operating environment of the air compressor should be kept clean and dry. The gas storage tank must be placed in a well-ventilated area, and no welding or heat treatment operations shall be carried out within a radius of 15 meters. 3. The gas storage tank and gas delivery pipelines shall undergo a horizontal test every two years, with the test pressure being 150% of the rated operating pressure. Pressure gauges and safety valves should be calibrated at least once a year. 4. Before shipping a mobile air compressor, check the stability of its moving mechanism as well as its lubrication status; the transport speed should not exceed 20 km/h. 5. The amount of lubricating oil in the crankcase should be within the range specified by the scale, and the type and grade of the lubricating oil added must meet the requirements. 6. All connection points should be tightened, all moving parts as well as the valves should operate smoothly and be in their positions before startup. 7. The cooling water must be clean and soft, and the flow path must remain unobstructed. 8. The air compressor must be started under no-load conditions; once it is operating properly, loading can be increased gradually. 9. Before turning on the air supply valve, the air delivery pipeline must be properly connected; it should remain unobstructed and not twisted. Only after notifying the relevant personnel can the air supply be started. No one is allowed to work or stand in front of the exhaust outlet. The air storage tank should be placed in a well-ventilated area; exposure to direct sunlight and high temperatures is strictly prohibited. 10. Once the air compressor is operating properly, the readings on all instruments should meet the requirements specified in the manufacturer’s manual. 11. Pressure gauges, safety valves, regulators, etc. should be calibrated regularly to ensure they remain sensitive and effective. 12. The maximum pressure in the gas storage tank must not exceed the value specified on the nameplate, and the safety valve must be sensitive and effective. 13. The intake and exhaust valves, bearings, and all components should show no abnormal noises or overheating. 14. The oil and water in the oil-water separator, intermediate cooler, and aftercooler should be drained once every 2 hours of operation. The oil and water in the air storage tank must be drained once or twice per shift. 15. When any of the following conditions is detected, the machine should be stopped immediately for inspection. Operations can resume only after the cause of the fault has been identified and resolved. ①Leakage of water, air, electricity, or sudden interruption of cooling water ； ②The indicated values of the pressure gauge, temperature gauge, and ammeter exceed the specified limits ； ③The exhaust pressure rises suddenly; the exhaust valve and safety valve fail ； ④The machine makes abnormal noises or there are strong sparks from the motor brushes. 16. If the machine stops operating due to overheating of the cylinders caused by a lack of water during operation, cold water must not be added immediately; the cylinder block must cool down naturally to below 60°C before water can be added. 17. The installation of power cables for electric air compressors must comply with the requirements of safety electrical regulations; repeated grounding should be secure, and the overload protection devices must be sensitive. In the event of a power outage during operation, the power supply should be cut off immediately, and the compressor should be restarted once power is restored. 18. It is strictly prohibited to clean the crankcase, filters, cylinders, pipes, or other components of the air passage system using gasoline or kerosene, nor is it allowed to use burning methods to remove oil from the pipes. 19. When shutting down, the load should be removed first, followed by disengaging the main clutch ； Then stop the operation of the internal combustion engine or electric motor. 20. After shutting down the machine, close the cooling water valve and open the vent valve to release the oil, water, and air stored in the air reservoirs of each stage of the coolers. When the temperature is below 5°C, the water stored in various components must be drained before leaving. 21. When using compressed air to blow clean parts, it is strictly prohibited to direct the air stream at human bodies or other equipment. 22. After the work is completed, release the remaining air from the gas tank. The cooling water should be drained in winter. 23. The \"Safety Technical Operating Procedures for Construction and Installation Workers\" stipulate as follows: Article 743: Gas pipelines should be avoided from having sharp bends, and relevant personnel at the work site must be notified in advance before the air supply valve is opened. Article 744: No one is allowed to work at the air compressor outlet. The gas storage tank should be placed in a well-ventilated area; exposure to direct sunlight and high temperatures is strictly prohibited. Article 745: Pressure gauges, safety valves, regulators, etc. shall be calibrated regularly to ensure they remain sensitive and effective. Article 746: If it is found that the readings of the barometer, oil pressure gauge, temperature gauge, and ammeter are abnormal, if there is leakage of water, air, electricity, or oil, or if the coolant supply is suddenly interrupted, or if the safety valve continues to release gas or the sound of air compression is abnormal, and these issues cannot be resolved, the machine should be stopped immediately for maintenance. Article 747: It is strictly prohibited to clean the crankcase, filters, or other components of the air passage system using gasoline or kerosene.