Key points of installation, commissioning, operation and maintenance of the carbon dioxide injection system
2025.03.14
Carbon dioxide injection system is widely used in water treatment, food processing, chemical industry and other fields, and its stable operation is crucial to the production process and product quality. This paper will explain the key points of the carbon dioxide injection system from three aspects of installation, commissioning, operation and maintenance.
1. Installation points
1. Site selection and foundation: the system shall be installed in a well ventilated area, away from fire source and easy to operate and maintain. The equipment foundation shall be flat and firm, and the drainage grooves shall be reserved.
2. Pipe connection: use seamless steel pipe or stainless steel pipe conforming to the pressure grade, and ensure that the connection place is well sealed to avoid leakage. The pipe should be as short and straight as possible to reduce the elbows and reduce the pressure loss.
3. Safety protection: carbon dioxide is an asphyxiation gas, and the installation area should be equipped with ventilation device and gas concentration alarm. Operators should be equipped with protective equipment, such as gloves, goggles, etc.
4. Electrical installation: the electrical lines shall meet the explosion-proof requirements, with reliable grounding. The control system shall have protection functions such as overvoltage, overcurrent and leakage.
2. Debugging points
1. System inspection: before debugging, comprehensively check whether the equipment, pipes, valves, instruments and etc are correctly installed, firmly connected and without leakage.
2. Pressure test: Conduct pressure test on the system to ensure that the pipeline and equipment can withstand normal working pressure without leakage.
3. Instrument calibration: calibrate the pressure gauge, flowmeter, concentration meter and other instruments to ensure the accuracy and reliability of the measurement data.
4. Parameter setting: According to the process requirements, set the carbon dioxide dosage, pressure, flow and other parameters, and conduct preliminary debugging.
5. Linkage and commissioning: Linkage and debug the carbon dioxide feeding system with the whole production process system to ensure the stable operation of the system and meet the production needs.
3. Operation and maintenance key points
1. Daily inspection: regularly check the operation status of the equipment, observe whether the pressure, flow, concentration and other parameters are normal, and find and deal with abnormal situations in time.
2. Regular maintenance: Regular maintenance of the equipment, including filter replacement, pipe cleaning, lubricating moving parts, etc., to ensure that the equipment is in good condition.
3. Safe operation: Operators should undergo professional training, be familiar with equipment operation procedures and safety precautions, to avoid safety accidents caused by misoperation.
4. Record and analysis: Make good operation record of equipment, including operation time, input, failure, etc., and conduct regular analysis to provide basis for equipment maintenance and optimization.
5. Emergency plan: Formulate the emergency plan for carbon dioxide leakage and other emergencies, and organize regular drills to improve the emergency response capacity.
4. Other considerations
Carbon dioxide cylinders should be stored in a cool and ventilated place to avoid direct sunlight and high temperature environment.
Check the remaining amount of carbon dioxide cylinders regularly and replace them in time.
When the system is deactivated for a long time, the carbon dioxide in the pipe shall be emptied and all valves shall be closed.
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