To determine the required air compressor flow, need to combine the following key factors analysis:
1. Core calculation formula
according to the ideal gas state equation, the required air compressor flow calculation formula is:
q=tV×(P2 −P1 )×1.1
among them:
- q: Air compressor flow (m & sup3;/min)
- v: Gas tank volume (10m & sup3;)
- p2: Final working pressure (unit: bar, to be confirmed)
- p1: Initial pressure (usually 1 bar)
- t: Inflation time (min)
- 1.1: safety factor (considering temperature effect and efficiency loss)
2. Parameter sensitivity analysis
| assumption condition | calculation example | required Flow (m & sup3;/min) |
|---|
| charge to 8 bar, complete in 30 minutes | q=3010×(8−1)×1.1 | ≈2.57 m³/min |
| charge to 10 bar, complete in 1 hour | q=6010×(10−1)×1.1 | ≈1.65 m³/min |
| continuous air supply + 50% leakage compensation | basic flow × 1.5 | need to increase 50% selection |
3. Selection recommendations
- priority Clear Parameters: It is necessary to confirm the working pressure (usually the air compressor is selected according to 7-10 bar), charging time and whether it is equipped with continuous gas equipment.
- Market Specification Matching: Common air compressor flow specifications are 1.5/2.2/3.0 m & sup3;/min, etc., it is recommended to choose 2.2-3.0 m & sup3;/min model
- power matching: Corresponding power is about 7.5-11 kW (estimated at about 3.5-4 kW per m & sup3;/min)
- gas tank configuration: It is recommended to configure 15-20% volume buffer tank to extend equipment life
4. Consideration of Special Situations
- if it needs to be used in a low temperature environment below -40 ℃, screw air compressor with dryer shall be selected.
- High altitude area (for every 1000m elevation, the power needs to be increased by 3-5%)
- it is recommended to choose variable frequency air compressor for energy saving in frequent start and stop scenarios.
It is recommended to use professional air compressor selection software for accurate calculation according to actual working condition parameters, or contact equipment manufacturers to provide specific working condition parameters to obtain customized solutions.
