From single level to full process: graded arrangement of maintenance work for composite oil and gas processing equipment at gas stations

The long-term stability and compliance of oil and gas recovery equipment depend partly on the manufacturing level of the equipment itself and partly on the maintenance efforts after operation. Many gas station equipment maintenance stays in the repair mode, only dealing with faults when they occur. The equipment operates in an unhealthy state for a long time, and the recycling effect and lifespan are compromised. A reasonable approach is to arrange maintenance work in a hierarchical manner, from daily inspections, regular maintenance to planned major repairs, so that each task has its own rhythm and is not lacking or lacking. This article compiles a set of graded maintenance arrangements applicable to composite oil and gas processing equipment at gas stations.

Daily inspection: fast, frequent, and focused on key data

Daily inspections are the foundation for maintaining the system, with simple projects but the highest frequency. Check the exhaust concentration, membrane pressure, inlet pressure, and processing capacity data on the device touch screen daily, compare them with the usual records, and promptly investigate any abnormal data. During the inspection, check the appearance of the equipment for rust, whether there is leakage at the pipeline interface, whether the grounding wire is intact, and whether the electrical box door is closed normally. The purpose of daily inspections is not to solve all problems, but to detect early signs and eliminate faults at an early stage.

Zhou Maintenance: Cleaning, Inspection, and Tightening

A slightly deeper maintenance can be scheduled once a week. Clean the dust on the surface of the equipment and the heat dissipation parts to ensure normal ventilation and heat transfer of the cold exchanger; Check whether the interfaces and valves of each pipeline are tightened and whether there is any looseness or leakage; Check the sealing condition of the explosion-proof junction box and distribution box, and whether there is oxidation or discoloration of the terminals inside the box. The gas-liquid separator and filtration process before the membrane module should be carefully inspected to confirm that no liquid droplets or impurities have entered the membrane assembly, which is a key step in protecting the membrane life.

Monthly and quarterly maintenance: replacement and testing

Arrange more important maintenance tasks on a monthly or quarterly basis. Check the operating status and performance trend of membrane components, and arrange for replacement if necessary; Check the status of grounding resistance and explosion-proof facilities; Perform a complete start stop test on the equipment to confirm that the automatic control logic is functioning properly. The heat transfer efficiency of the condensation section is affected by seasons. It is recommended to conduct a cold exchanger status assessment before and after seasons with significant temperature changes, and clean the heat exchange surface if necessary to ensure cooling effectiveness.

Annual major maintenance and record management

Arrange a large-scale maintenance once a year based on equipment usage and supplier recommendations, focusing on evaluating the wear and performance of core components such as membrane modules, compressors, and vacuum pumps, and determining whether to replace consumables or arrange professional maintenance. All maintenance actions should be recorded and documented as equipment files for tracking performance trends and planning spare parts. By establishing a maintenance rhythm of day, week, month, and year, oil and gas recovery equipment can continue to be in a healthy state, providing long-term protection for environmental standards at gas stations.