Deficiency of exhaust volume z* the main manifestation is that the pressure can not reach the end pressure. From the fault phenomenon, it is likely that the failure of the inlet air filter will reduce the exhaust volume when the scale in the filter is blocked. Second, the low speed of the air compressor will reduce the exhaust volume: the exhaust volume of the air compressor is designed according to the specified altitude, suction temperature, humidity, if used on the plateau above the above standard, it will cause the suction pressure to decrease and the exhaust volume to decrease. The third is caused by the change of the matching clearance of the air compressor caused by the wear of the parts: the cylinder, piston and piston ring wear seriously and exceed the difference, resulting in the increase of the relevant clearance and the increase of the leakage amount, which will affect the exhaust volume seriously. Fourth, the air compressor system serious air leakage, mainly because the stuffing box is not tight, resulting in air leakage to reduce the amount of gas, the reason: s* first, the stuffing box itself is not required; secondly, may be installed, The piston rod and the stuffing box center are not good, resulting in wear, tension and other air leakage. The fifth is the influence of the failure of the pressure valve of the air compressor on the exhaust volume, which mainly refers to the metal fragments or other sundries falling between the seat and the valve plate of the suction and exhaust valve, resulting in the lax closure and the formation of air leakage. In addition, the poor matching of air valve spring force and gas force will also affect the exhaust volume. If the elastic force is too strong, the valve plate will open slowly, and if the elastic force is too weak, the valve plate will not be closed in time.
