The safety operation process of air compressor mainly includes preparation before operation, precautions during operation and safety measures after operation. The specific process is as follows:
preparation before 1. operation
familiar with equipment:
- before operating the air compressor, you must have a certain understanding of the structure, performance and operation methods of the equipment.
- Read the operating instructions of the equipment carefully and operate in accordance with the requirements of the instructions.
Work environment inspection:
- check whether the working environment meets the requirements, ensure that the operation site is well ventilated, and avoid the existence of flammable and explosive materials.
- Clean the work area to ensure that the passage is unblocked and there is no debris around.
Check equipment status:
- before operation, all parts of the air compressor shall be inspected to ensure that there is no damage or abnormality.
- Pay special attention to check the working status of the safety valve and pressure gauge.
- Check whether the electrical circuit meets the requirements to ensure the safety and reliability of the power supply circuit.
- Check whether the appearance of the equipment is intact, whether the machine parts are fastened, and whether there is air leakage in the gas pipeline.
- Check whether the air supply device works normally, including whether the pressure gauge displays normally and whether the pressure regulator can stably adjust the air pressure.
- Clean the filter to ensure that the gas supply device can provide clean and stable gas.
- Remove tools and debris near the body and motor.
Personal Protective Equipment:
- the operator must wear personal protective equipment that meets the standard, including safety helmet, protective glasses, earplugs, etc.
- Wear appropriate personal protective equipment, including safety helmet, protective glasses, protective gloves, etc.
Safety precautions during 2. operation
startup Procedure:
- start the air compressor according to the procedures in the equipment operation manual, and gradually adjust it to the appropriate working state.
- During the start-up process, observe whether the equipment is running normally, and stop the machine for inspection in time if there is any abnormal situation.
- Before starting the air compressor, you must first adjust the air pressure to the set value, and then slowly open the intake valve. Do not rush to start, so as to avoid the danger of excessive pressure.
- Before starting for the first time after long-term shutdown, it is necessary to check the turning gear, and pay attention to whether there are any phenomena such as impact, jamming or abnormal noise.
- It should be started under no-load condition. After the no-load operation is normal, the air compressor should be gradually put into load operation.
Operation monitoring:
- before officially starting work, ensure that all operators have left the dangerous area of the equipment.
- Do not wipe, touch, adjust or tighten the parts with pressure during operation.
- When operating the air compressor, the reading of the pressure gauge must be checked regularly to ensure that the pressure is within the normal range.
- Overload operation is prohibited to prevent equipment damage and ensure the safety of operators.
- Pay attention to the temperature of the device to prevent it from overheating. Clean the cooling system in time to ensure its normal operation.
- The air compressor should be well connected with the ground wire to avoid personal injury due to equipment leakage.
- Check whether the indications of various electrical instruments are normal, listen to whether the working sound of each part of the machine changes, ensure that the temperature of each part does not exceed the specified value, and check whether the lubricating oil level is normal.
- It is forbidden to wipe the rotating parts during operation.
- When replacing the oil and gas separator, pay attention to electrostatic discharge. Connect the inner metal mesh with the oil drum shell to prevent explosion caused by electrostatic accumulation. At the same time, prevent unclean items from falling into the oil drum to avoid affecting the operation of the compressor.
Maintenance:
- the air compressor should be regularly maintained, including cleaning equipment, checking oil level, fastening bolts, etc.
- In the maintenance process, should pay attention to cut off the power supply, and follow the relevant operating procedures.
- The purpose of maintenance work is to ensure the normal operation of the equipment and reduce the probability of failure and accident.
Safety measures after 3. operation
shut down device:
- at the end of the work, first turn the air compressor to the shutdown state, and then shut down the equipment according to the procedure sequence of the equipment operation manual. It is strictly forbidden to forcibly shut down the equipment or directly cut off the power supply.
- Before stopping the machine, the load should be unloaded first, and then gradually decelerated and stopped. The power supply should not be cut off suddenly to avoid impact on the equipment.
- After the air compressor is used, it must be closed. Close the intake valve first, then turn off the power to ensure that the equipment completely stops working.
- When parking, first close the pressure reducing valve or open the vent valve to make the air compressor run without load, and then cut off the power supply.
- After cutting off the power supply, manual blowdown shall be carried out several times.
- Close the cooling water inlet valve after shutdown.
- If the motor is stopped due to the power failure, the motor should be restored to the starting position to prevent accidents caused by the failure of the starting controller when the power supply is restored.
Organize the operation site:
- clean the operation site, keep it clean and tidy, and avoid the existence of dangerous factors such as water accumulation.
- After using the air compressor, the equipment should be cleaned. Remove accumulated dirt and dust to maintain the normal operation of the equipment.
- Every Monday, the shift supervisor shall arrange the cleaning personnel to clean the floor and equipment surface of the air compressor room to avoid dust.
Exception handling:
- for the abnormal situation of the equipment, stop the machine in time and contact the maintenance personnel for investigation and repair.
- Safety valve lead seal off, valve leakage, abnormal sound and odor in operation shall be shut down for treatment.
- In case of any special abnormality of the air compressor, press the emergency stop button. If you need to restart again, it should be after 2 minutes, otherwise the electrical components will be damaged due to excessive starting current.
- In case of fire, leakage and other emergency situations, take immediate measures, such as shutdown, cut off the power supply or spray water to cool down. At the same time, timely report to relevant personnel for emergency rescue.
Maintenance:
- regular maintenance of equipment, including replacement of filters, inspection of wires and cables, etc.
- When the air compressor is not used for a long time, it must be stored in a dry and ventilated place, and appropriate rain-proof and dust-proof measures should be taken to avoid equipment damage.
- Change the operation sequence of air compressor and cold dryer once a week, start one to run normally and then stop the other. After the air compressor stops, use compressed air to purge the cooling fins of the cold dryer and air compressor.
- Check that the oil level is not lower than the lower 1/3 of the sight glass and refuel if necessary.
- After the air compressor is operated for 2 hours, the oil and water in the oil-water separator, intercooler and after-cooler shall be discharged once, and the oil and water in the air storage barrel shall be discharged once per shift.
- Every Monday, the shift supervisor shall arrange the cleaning personnel to clean the floor and equipment surface of the air compressor room to avoid dust.
Staff training:
- conduct regular safety training for operators to improve their safety awareness and operation skills.
- Operators must be professionally trained and qualified.
- The operator must carefully read and understand the operating instructions and safe operating procedures of the air compressor.
- The operator must keep the passage around the machine clear to ensure safe evacuation.
In summary, the safety operation process of the air compressor covers all aspects before, during and after the operation. The operator must strictly abide by these procedures to ensure the safety of the operation.
