Summary:1. Test method - check the air volume of the existing air compressor
A timed pumping test is an easy and accurate way to check the air volume or outpu...
A timed pumping test is an easy and accurate way to check the air volume or output of an existing air compressor, which will help determine whether the compressed air shortage is due to machine wear or failure.
2. Estimation method
V=V gas consumption of existing equipment + V gas consumption of post-processing equipment + V leakage amount + V reserve amount
3. Determine the required increase in compressed air
The amount of compressed air supply that needs to be increased is determined based on the amount of air required to raise the system pressure to the desired pressure.
P2: required m3/min = existing m3/min
P1: In the formula, required m3/min = required compressed air supply volume; existing m3/min = existing compressed air supply volume; P2 = required system pressure, Mpa (A); P1 = current Some system pressures, Mpa (A); m3/min to be increased = required m3/min - existing m3/min; the result tells you how much gas to increase to meet the existing gas demand. It is recommended to add enough gas to not only meet the current gas requirements, but also take into account the need for incentives and leakage.
4. Influence of system leakage
Air supply deficiencies are often or certainly due to system leaks, a continuous source of power loss in air systems, so it is best to keep them as small as possible. Several small leak points equivalent to 1/4 inch holes may leak up to 2.8M3 of compressed air under 0.69Mpa pressure, which is equal to the amount of air you lose by an 18.75Kw air compressor, in terms of electricity per degree 0.4 yuan, running 8,000 hours a year (three shifts), these missing air will cost you 60,000 yuan in vain.
Most factories will provide maintenance personnel and parts to fix the leak. damaged tool. Valves, packings, fittings, droppers and hoses should be inspected and repaired promptly.
The leakage of the whole system of the factory can be diagnosed by measuring the time required for the system pressure (on the upper side of the gas storage cylinder) to drop from 0.69Mpa(G) to 0.62Mpa(G) without gas supply. Using the pump gas test, we can calculate the leakage of the entire system: V(P2-P1)60 leakage
m3/min=90 (PA) If the air leakage exceeds 5% of the air volume of the whole system, the leakage must be built.