Nitrogen Generator Carbon Molecular Sieve Powdering Maintenance

Replacement of Carbon Molecular Sieve for Nitrogen Generator, Loading of Pulverized Carbon Molecular Sieve in Nitrogen Generator After prolonged use of the nitrogen generator, the quality of the carbon molecular sieve deteriorates, leading to a decrease in the purity of the produced nitrogen. Replacing the carbon molecular sieve can restore the purity. Many customers have reported that after a certain period of use, nitrogen generators require maintenance and attention, such as insufficient gas production, decreased nitrogen purity, and powder spraying from the nitrogen generator. Replacement of Carbon Molecular Sieve Improper operation and maintenance during the use of the carbon molecular sieve can cause poisoning. For example, if the initial air purification system lacks processing equipment or the equipment is operating with issues, oil and water impurities may enter the adsorption tower directly with the air and be adsorbed by the carbon molecular sieve, leading to poisoning. This severely impairs the desorption capacity, significantly reducing nitrogen production and purity. Additionally, after reaching a certain service life, the nitrogen purity of the carbon molecular sieve will noticeably decline, failing to meet usage requirements. In such cases, replacing the carbon molecular sieve becomes necessary. PSA nitrogen generation has been widely used in China for over twenty years, and many users have reported similar issues. In response to the demands of nitrogen generator users, our company has successfully provided carbon molecular sieve replacement services for dozens of nitrogen generators from brands such as Sujing, Hangyang, Tianyi, Feida, Shenlan, Changjiang, and Shengda. Providing thorough, effective, and satisfactory services has always been our consistent service philosophy. Our professional technical service personnel can offer the following services: 1. Technical diagnosis and analysis of faults in PSA nitrogen generators. 2. Provision of technical solutions. 3. Supply of high-quality carbon molecular sieve. 4. Dispatch of technical personnel at any time for technical collaboration and guidance. The service life of carbon molecular sieve decreases by 5% in production capacity annually (due to unavoidable aging issues). 5. The manufacturer recommends a service life of 5-6 years for CMS-220 carbon molecular sieve, but our company recommends replacement every 4 years. 6. All components are guaranteed for one year by our company, excluding normal consumables. For pulverized carbon molecular sieve, the guarantee is 4 years, excluding normal aging and capacity reduction. 7. Within the one-year warranty period, the carbon molecular sieve will not spray out, excluding improper use (e.g., failure to follow our company's maintenance schedule). We will provide free repair services for the nitrogen generator. The compression device of the nitrogen generator should have a compression stroke. During the operation of the nitrogen generator, the molecular sieve may pulverize due to the impact and friction of the airflow, but the compression device should automatically compress until the molecular sieve deficiency alarm is triggered. If the compression device of the nitrogen generator is an old-style screw compression, it is a one-time use. Once part of the molecular sieve pulverizes, it will loosen, and the pulverization will worsen. Providing thorough, effective, and satisfactory services has always been our consistent service philosophy. Our professional technical service personnel can offer the following services: 1. Technical diagnosis and analysis of faults in PSA nitrogen generators. 2. Provision of technical solutions. 3. Supply of high-quality carbon molecular sieve. 4. Dispatch of technical personnel at any time for technical collaboration and guidance. Detailed Description: 2.2 Equipment Maintenance Requirements 2.2.1 The carbon molecular sieve is the core of the nitrogen generation equipment. To prevent contamination and failure, the oil content in the air compressor exhaust must be strictly controlled, and the filter cartridges and activated carbon in the oil remover must be replaced regularly. 2.2.2 Regularly check the pressure gauge of the compression cylinder. If there is no pressure or the pressure drops during the desorption process, it indicates that the cylinder cannot properly compress the carbon molecular sieve. Troubleshoot promptly to prevent the carbon molecular sieve from loosening and pulverizing due to lack of compression. When molecular sieve gap reorganization or normal wear triggers a carbon level alarm, promptly stop the machine and add carbon molecular sieve. 2.2.3 During operation, if a large amount of black dust is observed spraying from the vent, stop the machine immediately to identify the cause and avoid加剧 pulverization of the carbon molecular sieve. 2.2.4 The storage, transportation, and handling of carbon molecular sieve are harmless to the human body. When filling the carbon molecular sieve, wear protective goggles, a respiratory filter, and use an exhaust fan. After filling, wash the contacted areas with soap. 2.2.5 When faults such as nitrogen purity alarm, carbon level alarm, or adsorption pressure drop occur, promptly identify the cause and resolve the issue. 2.2.6 During continuous operation of the equipment, regularly check the air tightness of all pipeline connections to ensure there are no leaks. Frequently check the operational status of the pneumatic valves to ensure they are normal. 2.2.7 If the equipment is left idle or used intermittently for a long time, ensure it is started once a month for four hours each time to keep the equipment in standby condition. 2.3 Daily Equipment Maintenance Checklist For the following items, under normal circumstances, check at least once a day according to the requirements in the table below. Record the inspection results and actions taken. Serial Number Item Inspection Content Maintenance Period 1 Valve Switch Status Check if the valve switch status is correct During equipment startup and shutdown 2 Compression Cylinder Compression Status Check if the compression cylinder pressure is normal During equipment startup and shutdown 3 Exhaust Status Check if dust is being discharged During equipment operation 4 Buffer Tank Drain Valve Drainage Check if drainage is normal Before startup and after shutdown 5 Readings of Various Instruments Check if readings are normal During equipment operation 6 Air Tightness of Pipeline Connections Check for leaks During equipment operation