Permanent magnet variable frequency air compressor split or integrated good

Conclusion first

there is no absolute good or bad, the key depends on your power, installation environment and later maintenance ability. Small power, tight site, good ventilation, choose one machine. High power, bad environment, want to save trouble for a long time, choose split machine. If the water-lubricated air compressor is used, both structures can benefit, but the advantages of the split machine in heat dissipation and later maintenance are more obvious.

All-in-one machine is good.

The all-in-one machine has the main engine, motor, gas storage tank, dryer and filter all installed on a base. The pipeline has been connected when leaving the factory, and it can be used when it is pulled to the site and plugged in. The area is small, the joint is small, and the air leakage is naturally small. The noise is also slightly lower, because the air duct is designed as a whole and the airflow direction has been calculated.

The power is in the range of 7.5 kW to 22 kW, and the computer room has basic exhaust conditions. The all-in-one machine is really worry-free. It can be put into production in half a day, without on-site welding of pipes and foundation, and the cost of manual installation is the whole province.

However, the all-in-one machine has a hard injury, that is, heat dissipation. All the parts are squeezed together, the heat cannot be dissipated, the frequency converter and the motor run at high temperature for a long time, the magnet steel of the permanent magnet motor is afraid of heat, and the temperature will drop as soon as the efficiency is high, and irreversible demagnetization will occur in serious cases. In addition, many all-in-one machines hide the filter element in the innermost part of the machine in order to look good. If the design of the maintenance door is unreasonable, the master is very humbled.

Another problem is that the upgrade is not flexible. Today, I bought a set meal with air storage tank and cold dryer. If I want to change the adsorption dryer or increase the air storage tank next year, I basically have to change the whole machine or change the pipeline.

Where is the good part of the split machine?

The split machine separates the host and the motor, and the middle is connected by a coupling. The motor has its own heat dissipation space, and the host also has its own ventilation environment, and the heat will not interfere with each other. The high-power machine has a large calorific value, the split layout has good heat dissipation, the permanent magnet motor has a low working temperature, the demagnetization risk is small, and the long-term operation is more stable.

Maintenance is also convenient. If the main engine is broken, replace the main engine, if the motor is broken, replace the motor, and replace which part has a problem, without implicating the whole machine. Later, I want to upgrade the dryer, change the large gas storage tank, add filters, and combine them casually without restriction.

The price is large, installation trouble. The air storage tank, cold dryer and filter should be placed separately. The pipe should be connected on site, the pipe diameter should be calculated and the foundation should be made. The construction period is long, and the probability of leakage and leakage is higher if there are more joints.

If the power exceeds 37 kW, or the computer room is high temperature and dusty, choose the split machine honestly. The large machine has a large calorific value, good heat dissipation in split layout, sufficient maintenance space, and the master does not hold back his job.

What is the difference between water lubricated air compressor in this matter

water lubricated air compressor with water instead of lubricating oil, no oil in the compression chamber, the condensate discharged is clean water, there is no problem of oil-water separation.

If you choose an integrated water-lubricated air compressor, because there is no oil, the drainage is particularly simple, and the automatic drain valve at the bottom discharges clear water, so you don't have to worry about the mixing of oil and water to block the drain valve. Moreover, there is no oil circuit system, the inside of the machine is cleaner, and the maintenance of the all-in-one machine is less troublesome.

If the split water lubricated air compressor is selected, the heat dissipation advantage is more prominent. Although the water lubricated air compressor does not have the problem of high temperature oxidation of oil, the compression process itself will generate heat. The split layout allows the host and the motor to dissipate heat respectively. The permanent magnet motor has lower working temperature, more stable efficiency, and better power saving effect after long-term use.

How to choose, one sentence summary

low power, tight site, good ventilation, don't want to worry about installation, choose integrated machine, water lubricated air compressor integrated machine drainage worry-free, no oil pollution. High power, poor environment, want to use for a long time without worry, may need to upgrade in the future, choose split machine, water lubricated air compressor split machine has good heat dissipation, flexible maintenance and lower life cycle cost.

Buy equipment to see the full life cycle cost, early figure save trouble, later have to spend a lot of money to ask people to dismantle the machine. If the account is clear, you will know which factory is suitable for you.