What are the main tests for oil and gas recovery at gas stations?
1. Airtightness
Check whether the entire oil and gas recovery system is leaking. This system includes: tanker return copper pipe, underground oil and gas recovery pipeline, liquid collection tank, oil tank, and ground ventilation pipe. If there is an air leak in one place, it is not up to standard.
Note: During testing, all copper pipe three-way valves in the tanker must be open.
2. Liquid resistance
It is to check whether the oil and gas are running smoothly in the pipeline.
Note: During testing, you need to open the oil and gas recovery port once, which is next to the oil unloading port.
3. Gas-to-liquid ratio
When the oil gun blows out the oil, can it effectively suck back the air?
4. Detection interface
To check whether the interface is qualified, to put it bluntly, it means whether it can be connected to the air inlet pipe of the testing instrument normally.
5. Other appearances
For example, whether there is an air return cover on the oil gun and whether it is damaged.
Common causes of unqualified tightness and corrective measures
