Occasional abnormalities are inevitable during the operation of the oil and gas recovery device, and most issues are concentrated at a few fixed points: condensation temperature not meeting standards, abnormal pressure before the membrane, frequent start-up and shutdown of the compressor, and fluctuations in emission concentration. Mastering the diagnostic approach and troubleshooting sequence for common faults can handle most minor issues within the station, preventing them from escalating into downtime.
Four common phenomena and troubleshooting directions
- Condensation effect decreases: first check the cleanliness of the refrigerant carrying system and heat exchange surface, then check the temperature control of the inlet air;
- Abnormal pressure before membrane: Check the air volume after condensation and pressure setting, and investigate pipeline resistance and valve opening;
- Frequent start-stop of compressor: mostly due to issues with the pressure switch setting of the buffer tank or load matching;
- Emission outlet concentration fluctuation: trace back to changes in membrane module operating parameters and upstream load.
Standardized investigation sequence
- Check the panel: first read the alarm records and operating parameters to identify the abnormal range;
- Segmented isolation: Confirmation is carried out in stages, following the sequence of collection, compression, condensation, and membrane separation;
- Baseline comparison: Compare with the commissioning data at the time of commissioning to find the deviation;
- Start with the easy things first: start with easily checkable items such as filter elements, drainage, and set values, and then proceed to mechanical troubleshooting.
Quick Reference Table for Typical Problems
| phenomenon | High-probability cause | Processing direction |
|---|---|---|
| The condensation temperature cannot be lowered | Dirty and blocked heat exchange surface, insufficient cooling capacity | Clean the heat exchanger and replenish the refrigerant |
| Membrane flux decreases | Inlet temperature and pressure exceed the envelope | Restore upstream operating conditions and assess membrane status |
| Frequent start-stop | Buffer volume or pressure band setting | Adjust settings, calculate buffer |
| Emission concentration alarm | Sudden change in upstream load | Backtracking load, segmented retesting |
When do you need manufacturer support
If the self-inspection within the station fails to resolve the issue, or if it involves mechanical problems with the compressor and membrane module body, or if it requires retesting of the emission effect, it is recommended to contact the equipment supplier for handling. Disassembling core components on one's own can easily expand the scope of the fault and also affect the determination of warranty liability.
What daily inspections can station personnel carry out?
Panel readings, drainage and sewage disposal, sound observation, and parameter recording can all be carried out; operations involving pressure vessels and the interior of electrical cabinets should be performed by professionals.
Does troubleshooting require a machine shutdown?
Most investigation projects can be conducted online, while projects involving mechanical disassembly and inspection require scheduled downtime.
Luoyang Wohong Petrochemical Equipment Co., Ltd. provides design, manufacturing, and installation services for tertiary oil and gas recovery equipment for gas stations and oil depots. We support customization according to the specific conditions of each station. Welcome to inquire.