Like this collection - the most complete knowledge of air compressors in history

Like this collection - the most complete knowledge of air compressors in history

1. Source of power: the secret of the motor

The "heart" of the screw air compressor is its motor! Did you know? The motor voltage used by air compressors of different powers is also very different:

Below 250KW: 380V motor

Above 250KW: 6KV or 10KV high-voltage motor

The secret of the speed:

2-pole motor: nominal 2960r/min (actual ≥2910r/min)

4-pole motor: nominal 1480r/min (actual ≥1455r/min)

Industry knowledge: air compressor motors generally adopt the "large machine and small label" design, and the service factor is usually 1.1-1.2, which is equivalent to reserving 10-20% of the power reserve!

2. Core Technology: Screw Host Decryption

The screw host is the "brain" of the air compressor. Its core technology lies in the precise design of the yin and yang rotors:

Male rotor: thicker main drive rotor

Female rotor: thinner driven rotor

Amazing precision: The gap between the rotors is only 2-3 strands (0.02-0.03mm), which is thinner than a hair! This non-contact design greatly extends the life of the host.

Key Tips: The direct-connected host has a lower speed and the bearings are not subjected to additional forces, so its life is significantly longer than that of the belt-driven host!

3. Oil and gas separation: Working principle of oil separator tank

The oil separator tank is the "kidney" of the air compressor, completing two major tasks of oil and gas separation:

Primary separation: tangential air intake generates centrifugal force to throw out most of the oil

Fine filtration: 23 layers of imported glass fiber intercept tiny oil droplets layer by layer

Intelligent design:

Minimum pressure valve (0.45MPa open) ensures that the lubrication system builds pressure first

Safety valve (1.1 times the set pressure) automatically releases pressure to ensure safety

Transparent oil level mirror facilitates observation of lubricating oil volume

4. Temperature control: Detailed explanation of cooling system

Intelligent adjustment of temperature control valve:

≤70℃: oil does not pass through the cooler

70-76℃: partial oil cooling

≥76℃: all oil cooling

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