Equipment per minute air consumption calculation method

most basic ideas

to know how much gas a piece of equipment or an entire production line uses per minute is actually to add up all the places where gas is used.

For example, if you have several cylinders working at the same time, how much gas each cylinder swallows per minute, and add them all up, it is the total gas consumption per minute.

Common calculation methods

the first way is the direct addition method. You write down every tool, cylinder and spray gun that uses gas on site, and how much gas they need per minute and add them up. For example, three cylinders need ten liters, eight liters and twelve liters per minute respectively, which adds up to thirty liters per minute.

The second way is to use the size of the cylinder and the number of actions of the equipment to calculate. You know the thickness of the cylinder and how long it travels each time, and multiply it by how many times it moves per minute to calculate how much gas the cylinder eats per minute. Just count all the cylinders in this way and add them up.

Air compressor air supply to how to match

when you use an oil-free or water-lubricated air compressor to supply air to these devices, the amount of gas that the air compressor you choose can produce per minute must be larger than the total gas consumption you calculate. Because there will be losses in the pipeline, there will be leaks in the joints, and the equipment cannot be running at full capacity all the time.

Generally speaking, the output of the air compressor should be set aside 20% to 30% margin on the basis of the total air consumption you calculated, so as to be sufficient.

Give a simple example to help you understand

suppose you have five cylinders working on your production line. The first cylinder needs eight liters of gas per minute, the second needs six liters, the third needs ten liters, the fourth needs five liters, and the fifth needs seven liters.

That total gas consumption is eight plus six plus ten plus five plus seven equals thirty-six liters per minute.

At this time, if you are using an oil-free air compressor, the gas it produces per minute should be able to cover at least 36 litres, preferably more than 40 litres, so that it will not run out of breath.

If you use a water-lubricated air compressor, by the same token, its gas production per minute is also greater than 36 liters, and because the gas produced by the water-lubricated air compressor is very clean, there is no need to add a lot of additional filtering devices, the pipeline loss can be calculated to be slightly smaller, but the margin should still be left.

An easily overlooked place

many people only calculate the air consumption of the cylinder and forget to calculate the air leakage on the pipeline. No matter how good the water-lubricated air compressor or the oil-free water-lubricated air compressor is, if the joint is not tightened and the pipe is aging, the gas will run away in vain. Therefore, in the actual calculation, the amount of air leakage is also estimated, and the result will be more reliable.

The simple summary is that adding up the demand of each gas consumption point, plus the pipeline loss and a certain safety margin, is the gas consumption per minute you really need. Then use this number to select the matching air compressor will not go wrong.