LPG Filling Station Technological Systems
LPG Filling Station Technological Systems
During the construction of LPG filling stations (LPG FS), various technological systems (TS) are widely used. These systems are designed for receiving, storing, and refueling vehicles with liquefied petroleum gas (LPG). There are four types of TS:
- Underground double-walled tanks
- Underground single-walled tanks
- Aboveground single-walled tanks with thermal insulation
- Single-walled tanks covered with soil
Single-walled tanks can be considered equivalent to double-walled underground tanks in terms of safety levels.
The standard equipment package for TS with double-walled tanks typically includes:
- LPG storage tanks
- Technological block
- One fuel dispensing unit
- LPG vapor release system
- System for fill restriction and LPG level measurement in tanks
- LPG and nitrogen pressure control system
- TS control panel
- Nitrogen block
- Pipeline set for liquid and vapor-phase LPG
- Tank and pipeline leak monitoring system
TS are fully factory-assembled, ensuring that all components are easily connected. The aboveground installation allows for assembly in any weather conditions. The outer shell of double-walled tanks can serve as an emergency reservoir, allowing the LPG filling station to operate even if the inner wall loses integrity.
Underground installations have specific features:
- No thermal insulation is applied to gas holders
- The placement scheme follows standard specifications
- No electrochemical tank protection system is used
- Gas leak detectors ensure vessel tightness control
- In case of a leak in a double-walled tank, the LPG FS can continue operation
You can read more about one of the key elements of an LPG filling station – fuel dispensers – in this article.