2 由机器方面导致的故障（机器排气量下降），主要是几个原因造成的：（1）保养不充分，适当加油、更换空滤等配件；（2）机器传送皮带松弛，导致排气量缩减； （3）不是所有的进气阀都能打开；（4）机子电机发生电路短路或由于老化造成磨损。（5）处于水蒸气较多的潮湿环境中，机器处理多余水分的能力不够，排气量在这种环境中出现下降。
As we all know, the motor of air compressor is an important factor to determine the working efficiency of air compressor. As an example, the Drea permanent magnet frequency converter mentioned in previous astronomical chapters, because Drea is equipped with a permanent magnet motor, compared with the power frequency machine, the machine runs more efficiently. Similarly, due to the fluctuation of motor power, the exhaust volume of the machine will also change. Sometimes, the exhaust volume will appear "insufficient" situation, today for everyone to talk about the machine exhaust volume decline in several reasons.
1. The exhaust pressure of the air compressor does not reach the rated effect; to explain in plain language, that is, the machine fails to meet the minimum gas demand of the factory. How to check whether the minimum gas consumption is met? When Euro's rigorous worker at the back of the sales department made similar checks for users'gas storage tanks, he used such a method: seal the valve behind the gas storage tank, if the pressure of the machine rises rapidly, then unlock the valve, and the pressure goes back, it can basically prove that the model can not meet the minimum gas demand.
Solution: Increase the number of air compressors, the specific number and type depend on the situation;
Faults caused by machine (decrease of exhaust volume) are mainly caused by several reasons: (1) insufficient maintenance, proper refueling, replacement of air filter and other accessories; (2) looseness of conveyor belt of machine, resulting in reduction of exhaust volume; (3) not all intake valves can be opened; (4) short circuit of motor circuit or wear due to aging. (5) In the humid environment with more water vapor, the ability of the machine to deal with excess water is not enough, and the exhaust volume decreases in this environment.
There are various reasons for the reduction of exhaust volume. In the daily use process, these are the most common situations we encounter.