• 2024/10/10 14:02:31

Causes and solutions of high water content of compressed air

The harm caused by water in the compressed air is mainly manifested in: condensed water will take away the lubricating oil on the pneumatic equipment, resulting in reduced equipment efficiency or even damage. Condensate will also accelerate the wear of the valve in the pipeline, resulting in the failure or misoperation of the pneumatic control equipment; Corrosion of pipes and equipment. So how to make the air water content after compression of the air compressor reach a lower value that we want?

We all know that the atmosphere we breathe contains water, but this amount of water can change due to weather and environmental reasons. The water content in a dry environment is much lower than the water content of compressed air in a high humidity air, and the environment is a factor here.

First, what are the reasons for the high water content of compressed air:

1. The air storage tank of the air compressor is the most important and main compressed air drying and purification equipment, and most of the stored air is compressed air, but the compressed air will contain a small amount of water and lubricating oil and other substances. Therefore, one of the reasons for the high water content of compressed air is how long it is used to discharge the water in the tank. If there is no discharge for a long time, the water stored in the tank is too much, and the water content of the compressed air will also increase.

2. There is also an important reason for the high water content of compressed air, such as the failure of post-processing equipment, precision oil mist filters, frozen dryers, adsorption dryers, drainers, etc. The main function of these devices is to filter the water, oil and other components of the compressed air, so that the compressed air becomes pure and free of impurities.

Second, the solution to the compressed air water content is too high

1. Increase the cooling system: By increasing the compressed air cooling system, reduce the temperature of the compressed air to reduce the generation of water vapor. This method is suitable for the case of small compressed air flow.

2. Install a cold dryer: The cold machine is a device specially used to remove the water vapor in the compressed air by cooling the compressed air to the temperature below the dew point, so that the water vapor condenses into a liquid state, which is removed in the subsequent filter. The cold dryer can achieve a high dehumidification effect and is suitable for the case of large compressed air flow.

3. Configure the filter: The installation of the filter can effectively remove water vapor and impurities in the compressed air according to different needs, different levels of filters can be selected to achieve the required purity. At the same time, regular maintenance and replacement of filters is also an important measure to ensure the normal operation of the system.

4. Use moisture absorbent: Set moisture absorbent in the compressed air pipeline to absorb water vapor in the air. Generally speaking, silica gel and molecular sieve are commonly used moisture absorbent, you can set moisture absorbent in the pipeline to alleviate water vapor problems.

5. Reasonable design of pipeline system: Reasonable design of pipeline system to reduce the generation and retention of water vapor. Under normal circumstances, the setting of horizontal pipes should be avoided as far as possible, the setting of slope to ensure air flow, while the drainage device is set at the low point to regularly remove water.

6. Regular maintenance inspection: Regular maintenance and inspection of the filter, cold and dry machine, drainage device and other equipment in the equipment to ensure their normal working status. Promptly detect and repair water leakage and leakage problems in the piping system to avoid water vapor entering the system.

In summary, the hazards of high water content of compressed air include corrosion of equipment, impact on pneumatic system, reduction of operating accuracy and impact on lubricant performance. The solutions mainly include increasing the cooling system, installing the cold and dry machine, configuring the filter, using the moisture absorption agent, rationally designing the pipeline system and regular maintenance inspection. Enterprises continue to summarize and analyze, and find effective solutions to ensure the normal production and transmission of compressed air, to meet the production needs.