Effects of severe cold on air compressors

1. The influence of severe cold on the air compressor

After the cold air enters the air compressor, a large amount of water vapor will be generated when it encounters high temperature, which will increase the burden of water vapor filtration in the post-processing of the air compressor, so the water in the post-processing equipment needs to be discharged from time to time.

Compressed air enters the production area through pipelines and is used by users, and some of these pipelines are buried underground, and some go through open pipes in the air. Walking through the open tube in cold weather may cause some moisture to be generated due to low temperature, and some may even have a certain impact on the normal use of users due to the increase in moisture.

For example, in the laser cutting machine industry, if the compressed air contains too much oil and water, it will affect the accuracy of the cutting process. In the mining industry, wet compressed air compressors may not affect the normal use of pneumatic tools, but it will affect the strength of pneumatic tools.

Notice:

After shutting down in winter, you must pay attention to emptying all gas, sewage, water, and emptying the water, gas, and oil in various pipes and air bags. Because the temperature of the unit is relatively high when the unit is working in winter, after the shutdown, the outside temperature is low and the air is cooled. In the end, a large amount of condensed water will be generated, which will exist in various control pipelines, which will easily cause hidden dangers such as blockage and cracking of the control pipelines.

2. The influence of severe cold on the lubricating oil of air compressor

The oil circuit system is an important part of the air compressor circulation system.

During normal operation, the oil circuit system will generate friction due to the rotation of the machine, and the heat generated by the friction will increase the temperature of the lubricating oil. Low air temperature is very beneficial to the oil circuit system that needs to be cooled.

However, for standby equipment or air compressors that have not been started all year round, when restarting in low temperature, the oil circuit may use lubricating oil to condense due to the low temperature, and it will fail when it is started, so it is necessary to repair the oil circuit system Check to see if the lubricating oil is in normal condition.

For the storage of lubricating oil, it is generally required to be stored in a heated room. If it is stored outdoors, the lubricating oil may be frozen due to the low temperature, and cannot be used immediately when needed.

The impact of low temperature in winter on the air compressor is good or bad, not only in the operation of the air compressor, but also in the maintenance of the air compressor and the storage of spare parts. Pay attention to the condition of low temperature, you should always pay attention to the operation status of the air compressor, perform regular maintenance, and prevent the air compressor from malfunctioning, so as to ensure the safe and normal production.

For some electric air compressors, due to the relatively high oil viscosity of each lubricating part of the unit when it is first started in winter, and the relatively low voltage on some mines, it is easy to cause relative difficulty in starting when it is first started. Generally, the method of first turning the unit 2- 3 laps, jog the air compressor 3-4 times. After the unit starts, the air compressor runs for 10 minutes, stops, and then restarts. Generally, the unit can run normally.

3. Key points of air compressor protection in winter

(1) Do a good job of cold protection measures for electronic drain valves and piping systems

The air compressed from the air machine will contain some moisture. When the condensed water is discharged through the automatic drain valve, it will be affected by the low temperature outside and freeze in the pipeline or other parts.

(2) Do a good job of cold protection measures for the indoor temperature of the computer room

As the temperature drops, the viscosity of the lubricating oil of the air compressor will increase, which will have a great impact on the restart of the air compressor after a period of shutdown, and will also affect the life of the machine.

(3) Confirmation of the working status of the automatic drain valves of air compressors, air storage tanks, dryers and filters

When off work or when the equipment is shut down, the drain valves of pipelines, gas storage tanks, dryers, etc. are fully opened, and the condensed water is cleaned up before closing the valves.

(4) The temperature of the air compressor room is maintained above zero

The exhaust outlet is closed or adjusted to the room to adjust the indoor temperature;

When the compressor is stopped or not running, it is necessary to properly activate the electric heater to adjust the temperature.

(5) Air compressor management during shutdown

After the compressor is stopped, the gas must be discharged to the display to show 0.0bar and then close the valve. Open the automatic drain valves of air compressors, air storage tanks, and dryers. Close after allowing air and condensation to drain completely.

When shutting down for a long time, it must be started once a week, and then repeat the above operation after 3 hours.

In cold and low temperature weather, the occurrence of air compressor unit failure will be increased. Therefore, we should always pay attention to the operation status of the air compressor, insist on regular maintenance, and prevent the failure of the air compressor to ensure the safety of production and the smooth progress of work.

 

Sollant Group-Professional Compressed Gas Solutions Provider