Air Compressor Fixed work stress
Screw air compressor as a general machinery widely used in the industry, in our daily work often encountered in the air compressor running oil problem, in addition to the quality of oil itself, there are other reasons will lead to oil run oil? Our engineers in practice summed up a few will lead to run the reasons for the oil, the following and share with you.
1. Oil and gas separation tank design is not standardized
There are some air compressor manufacturers, in the design of oil and gas separation tank, the primary separation system design is unreasonable, the primary separation effect is not ideal, so that the oil before the oil mist concentration is high, the oil load is too heavy, lack of processing capacity, resulting in fuel consumption Too high
2. Too much fuel
Fuel more than normal oil level, part of the oil with the air away, resulting in excessive fuel consumption.
3. With gas volume, overload and low pressure use
Low pressure load refers to the user when using the air compressor, the exhaust pressure does not meet the air compressor itself, the rated working pressure, but the basic to meet the needs of some business users gas, for example: business users increased gas equipment, The amount of air consumption increases, so that the air compressor displacement and the user's gas consumption can not be balanced, assuming that the air compressor rated discharge pressure 8kg / c ㎡, but the actual use of the pressure is only 5kg / c ㎡ or even lower, so empty Press the long-term in the load running state, can not reach the rated pressure value of the machine, resulting in increased fuel consumption, the reason is that the displacement of the same conditions, the oil and gas mixture through the oil flow rate, oil mist concentration is too high, So that the oil load increased, eventually leading to large fuel consumption.
4. The oil return line is blocked
When the return line (including the return pipe on the one-way valve and return to the oil filter) has a foreign body blocked, separated from the oil at the bottom of the oil can not return to the nose, has been condensed oil droplets have been blowing air, With the separation of the air was taken away. These foreign bodies are usually caused by solid impurities that fall when installed.
5. Oil return check valve is damaged
If the oil return valve damage (by the one-way open into two-way through), after the oil tank tank pressure will be a lot of oil through the oil return pipe back to the internal oil, the next machine running, the oil inside the oil will not be Timely suction back to the head, resulting in part of the oil with the air after the separation went to the air compressor outside (this situation is common in the oil does not install the valve and the exhaust valve outlet valve).
6. Improper installation of return pipe
In the replacement, cleaning, maintenance of air compressor, the return pipe is not inserted into the bottom of the oil (reference: from the bottom of the oil core 1 ~ 2mm better), resulting in the separation of oil can not return to the nose, the accumulation of oil will Run out with compressed air.
7. The minimum pressure valve is faulty
If the minimum pressure valve seal at the leak or the minimum pressure valve in advance (due to the manufacturers design opening pressure are different, usually in the range of 3.5 ~ 5.5kg / c ㎡), then the machine in the early operation of the establishment of oil and gas tank pressure Time will grow, at this time in the low pressure state of the gas mist high concentration, through the oil when the flow rate is high, oil load increased, the separation effect is reduced, resulting in large fuel consumption.