The gas consumption of punch in industrial production is affected by the working mode (working/idling), equipment parameters and process requirements. The following combination of theoretical calculations and actual data, for your detailed analysis:
1. theoretical calculation formula
punch gas consumption can be estimated by the following formula:
single air consumption of cylinder:
V single = 4 & pi;D2 ×S× 0.1P +0.102
- d: Cylinder diameter (cm)
- s: Cylinder stroke (cm)
- p: Working pressure (MPa)
air consumption per hour:
Q hour = V single × N × 2.5 ÷ 1000
- n: Number of work per hour
- 2.5: compressed air loss coefficient
2. actual working gas consumption
take JBS-50TS pneumatic punch as an example:
| Parameters | numerical |
|---|
| cylinder diameter | 100mm |
| travel | 50mm (adjustable) |
| working pressure | 0.4-0.8MPa |
| maximum single air consumption | 0.39L/time (at 0.8MPa) |
| typical Scene | gas consumption |
| continuous stamping (60 times/min) | 0.39 × 60 × 2.5 ÷ 1000=0.0585 m3/min (about 3.51m & sup3;/h) |
analysis of 3. Idling Gas Consumption
the main gas used during idling comes from:
- pneumatic clutch clearance adjustment:
- the large clearance causes the piston stroke to increase and the gas consumption to rise.
- Normal clearance: 3mm; Abnormal case: 10mm (gas consumption increased to 3 times).
- System pressure holding:
- continuous air supply is required to maintain line pressure, but the flow rate is low.
Measured data: When a 200-ton punch is idling in a factory, the gas consumption is about 0.8-1.2m³/h, only 5%-10% of the working state.
4. key influencing factors
- equipment parameters:
- for every 10mm increase in cylinder diameter, the gas consumption increases by about 15%.
- The stroke increased from 30mm to 50mm, and the air consumption increased by 60%.
- Process requirements:
- the stamping frequency increased from 30 times/min to 60 times/min, and the gas consumption doubled.
- Maintenance status:
- the seal ring is worn or the bearing clearance is too large, and the air leakage increases by 20%-50%.
5. energy saving optimization suggestions
- equipment selection:
- punch with gas tank is preferred to balance the fluctuation of gas consumption.
- process optimization:
- intermittent mode is enabled during discontinuous production to reduce idle gas consumption.
- Maintenance Management:
- check the cylinder seal every quarter and replace the worn parts.
- Regularly calibrate the clutch clearance to reduce invalid travel.
Through reasonable selection, process optimization and maintenance management, the gas consumption of the punch can be reduced by 10%-25%, and the energy utilization rate can be improved.
