Oil-free screw air compressor is widely used in all walks of life

The water-lubricated air compressor produced by Shanghai Granklin Group is widely used as energy power in piling, tunnel sand blasting, pipeline pressure, oil drilling, mining, shipyard rust removal, nitrogen making machine matching, oil exploration, shale gas exploitation, exploration and other industries.

[Summary] At present, many air compressors on the market are falsely labeled. Customers only use 67% and 10 gas volume. If the gas volume is sufficient, the waste will be large. The key is to do a good job in specific power, performance and durability, reduce the maintenance cost of customers, and optimize the gas consumption system of customers.

maintenance of air filter of air compressor:

the air filter of the air compressor can remove dust and prevent the oil from getting dirty, the oil filter and the filter element of the oil mist separator from being blocked. If the air filter of the air compressor is not maintained, the pressure will drop due to the reduction of air production, which will accelerate the speed of oil deterioration, cause the blockage of the oil mist separator, cause the abnormal stop of the air compressor or increase the consumption of electricity, resulting in the loss of electricity charges. At the same time, if the air filter of the air compressor is not maintained, the blockage of the oil filter will increase the impurities in the oil, resulting in early wear and damage of the bearing of the compressor body.

The reasons for the failure of the air compressor overload trip are:

1. Loose wiring: check whether the power line of the input screw air compressor has heat generation and burning marks. Mainly check the three-phase electric input line and motor input line. If there is a loose or short circuit, it is best to reconnect.

2. The voltage is too low: the rated working voltage of ordinary screw air compressor is 380V, and the allowable fluctuation is about 5%. The voltage mentioned here refers to the voltage when the machine is running normally, because in many construction sites (the power supply voltage of the factory is relatively stable, generally there is no such situation), the transformer is relatively small, when the equipment is not turned on, the voltage is 400V, but when When the equipment is turned on, the voltage is reduced to 350V, normal operation, the voltage is only 360V, short-term use is not a big problem, if long-term use, it will cause great damage to the electrical system.

3, screw air compressor oil separator blockage: oil core blockage, high internal pressure, heavy load, large current, overload. Misunderstanding: Don't assume that things you haven't changed for a long time won't be blocked. The site environment is dirty, and the impurities in the oil and gas barrel are easy to block the oil. The environment of the new oil core is OK, but the running time is less than 200 hours, and the quality of the oil is also very important.

4, screw air compressor pressure exceeds the rated pressure: such as 0.7MPa, the actual pressure 0.75MPa, easy to appear overload phenomenon. The 7kg air compressor should not be adjusted to 8kg. First, security is not guaranteed. Second, the equipment withstand voltage is insufficient and the service life is shortened. How much pressure, how much pressure air compressor to buy, don't just chase its price, we should pursue cost performance.

5. Screw air compressor contactor failure: The internal contacts of the contactor are aging, the suction is poor, the contact surface is small, and the current is large. The overload of the air compressor is a small matter, and the burnout of the electrical system is something that everyone does not want to see.

in short, regardless of whether the use of frequency control, whether equipped with permanent magnet motor, as long as the long-term work under partial load, the efficiency of the screw air compressor is significantly lower than the rated state.

Through partial load operation, it is impractical and useless to avoid inefficient operation of screw air compressor under unloading conditions. To put it bluntly, the surface of energy saving! However, the production cost per cubic meter of compressed air has increased. For the user, the total amount of compressed air required per day depends only on the production needs, and has nothing to do with which air compressor is used. The screw air compressor runs for a long time under partial load and only consumes more electricity.