(1) The filter element of the air filter element is stained and dusty, which will cause obstruction, improve the friction resistance of the air inlet and reduce and increase the working pressure.
(2) The oil is adhered to the inner air pipe of the refrigeration compressor and the inner air pipe of the central cooling tower, which improves the friction resistance of the cyclone, reduces the working pressure of the refrigeration compressor and reduces the efficiency.
(3) Refrigeration compressor shaft sealing ring damage, leakage of steam, loss.
(4) Because of the poor ignition of the diesel engine, serious carbon deposition, and the damage of the fluctuating rolling bearing, the turbocharged rotation friction resistance expands, the turbocharged speed ratio decreases, and the working pressure is reduced.
(5) The muffler of the exhaust pipe is blocked, and the exhaust pipe is not smooth, which makes the condensing type of the exhaust pipe of the turbocharger too high, and causes increased working pressure to reduce.
(6) Diesel engine cylinder liner, piston rod, engine piston, air valve and seat ring and other parts are seriously worn out, air compression to the cylinder leakage increase, reduce the increase of working pressure and refrigeration compressor efficiency.