How to calculate the gas consumption of the factory

The calculation of the gas consumption of the factory should be combined with the actual production demand and equipment operation characteristics, the following is an easy-to-understand calculation method, and into the application scenario of the water lubricated air compressor:

1. basic computing logic

plant gas consumption is usually determined total gas consumption of gas-consuming equipment operating simultaneously decision, taking into account the following factors:

1. air consumption of equipment
   each pneumatic equipment (such as pneumatic tools, spraying equipment, packaging machinery, etc.) will be marked rated air consumption(Unit: m3/min or l/min). The gas consumption of all equipment running at the same time is added to obtain. Theoretical total gas consumption.

2. Gas time and frequency
   if the equipment is not in continuous operation (such as intermittent use), the calculation shall be adjusted according to the proportion of actual working time. For example:

   • equipment A runs for 30 minutes per hour with a gas consumption of 5 cubic meters per minute & rarr; Actual gas consumption = 5 × 0.5=2.5 cubic meters per hour.
   • The actual gas consumption of all equipment is summarized and obtained. Average hourly air consumption.

3. Air leakage and spare quantity
   ageing of pipelines, loose joints, etc. will lead to air leakage, usually according to the total air consumption. 10%-20% reserve margin. In addition, in order to cope with unexpected demand or equipment maintenance, it is recommended to add additional 10%-15% the spare amount.

Adaptability of 2. Water Lubricated Air Compressor

water-lubricated air compressor due no oil pollution, stable operation it is often used in scenarios with high air quality requirements (such as food, electronics, and pharmaceutical industries). Its selection needs to be matched with gas consumption:

1. output capability matching
   air compressor exhaust volume(Unit: cubic meters/minute) It needs to be slightly larger than the theoretical total gas consumption of the factory to ensure sufficient gas supply. For example:

   • the theoretical total gas consumption of the factory is 8 cubic meters/minute & rarr; Select a water-lubricated air compressor with a displacement of 10 cubic meters/minute (including air leakage and spare capacity).

2. Fluctuation treatment with gas
   if the gas consumption fluctuates greatly (e. g. day-night difference), it can be matched. Gas tank buffering. The water lubricated air compressor automatically adjusts the output through frequency conversion technology to avoid frequent start and stop, which not only saves energy but also prolongs the life of the equipment.

3. Air Quality Requirements
   direct output of water lubricated air compressor oil-free compressed air no additional filtering equipment is required, simplifying system design. If the factory has requirements for air dryness (such as preventing pipeline condensation), a dryer should be installed.

3. simplified calculation steps

1. statistical equipment: List all gas-consuming equipment and their rated gas consumption.
2. Calculate total gas consumption: Add the air consumption of the equipment running at the same time and multiply it by the percentage of time used.
3. Reserved allowance: Total gas consumption × 1.2 (including air leakage and standby).
4. Selection of air compressor: Select a water-lubricated air compressor with a displacement slightly larger than the calculation result, and confirm whether it needs to be matched with an air storage tank or a dryer.

4. considerations

• avoid "big horse-drawn cars": Excess air displacement of the air compressor will lead to waste of energy consumption, while too small will lead to insufficient air supply.
• Regular maintenance water lubricated air compressor should regularly check the water quality and replace the filter element to ensure long-term stable operation.
• Professional consulting: If the gas usage scenario is complex (e. g. multiple devices are used alternately), it is recommended that technicians assist in the calculation.

Through the above methods, the factory can reasonably plan the gas consumption, and select the suitable water lubricated air compressor, taking into account the efficiency and cost.