Components of a Skid-Mounted Refueling Unit (Standard Complete Configuration)
A skid-mounted refueling unit is a mobile refueling assembly fully integrated onto a single steel base. Functionally, it is divided into seven major sections: the main structural body, oil storage system, refueling system, safety system, vapor recovery system, control system, and utility support components.
1. Skid Main Base
Integrated steel skid base (unified load-bearing frame)
Secures the entire assembly; allows for whole-unit hoisting, transportation, and relocation
2. Oil Storage System
Double-walled steel storage tank (inner layer for oil storage, outer layer for leak containment, includes leak detection)
Internal explosion-suppression material (inhibits explosion and flame propagation)
Manhole access well and cover
Liquid level gauge (electronic / mechanical)
High-level alarm device
Breather valve and flame arrestor
Emergency pressure relief valve
Inlet and outlet piping and valves
3. Refueling System
Explosion-proof fuel dispenser (single-nozzle / dual-nozzle)
Refueling nozzle, hose, and breakaway valve
Submersible pump or self-priming pump
Filter, check valve, and emergency shut-off valve
Refueling piping assembly
4. Safety and Protection System
Flammable gas detection and alarm system
Static grounding alarm system
Human body static discharge device
Lightning protection and anti-static grounding system
Emergency stop button
Automatic fire suppression system (suspended ultra-fine dry powder / aerosol type)
High-temperature fusible link protection and over-temperature protection
5. Environmental Vapor Recovery System (Mandatory for Gasoline)
Primary vapor recovery (during oil unloading)
Secondary vapor recovery (during vehicle refueling)
Vapor recovery piping, vacuum pump, and separation unit
Leak detection system; containment bund / drip tray
6. Electrical and Control System
Explosion-proof power distribution box and lighting fixtures
Power control and pump control switches
Intelligent management system (IC card interface, backend management, data upload capability)
Alarm interlock system (automatic pump shut-off upon detection of excessive gas levels)
7. Ancillary Support Components
Anti-collision guardrails and signage
Rain/sun protection canopy (partially integrated design)
Designated storage area for fire-fighting equipment
