The invention discloses a multifunctional
air compressor which comprises a
machine case, an air inlet device, a motor, a pressurization
air filter, a compressor, an oil-gas separator, a total heat
recovery water heater and a centrifugal gas-liquid separator. The air inlet device, the motor, the pressurization
air filter, the compressor, the oil-gas separator, the total heat
recovery water heater and the centrifugal gas-liquid separator are arranged in the
machine case. Air outside the
machine case enters the machine case after dust filtering of a filter bag and
noise elimination of a
noise elimination pressure relief device, heat in the machine case is collected by a motor cooling heat collection cover and is conveyed into the pressurization
air filter through a heat collection and air supply
pipe,
heat energy of gas and
radiation heat energy of equipment are recycled, and cold oil is conveyed to the compressor through an oil return
pipe after hot oil in a separator engine oil conveying
pipe is cooled by the total heat
recovery water heater. According to the multifunctional
air compressor, three kinds of heat are recycled, the generated gas rises and is improved by more than 10 percent, gas input is smooth and small in resistance, the whole energy-saving equipment is arranged in the machine case, air for cooling is reduced, cooling
electricity consumption is reduced,
electricity used by the
air compressor is less, and the energy efficiency ratio is high. The good vibration and
noise reduction and cooling effects are achieved.