When many of our companies use air compressors on a daily basis, they may encounter some external environmental factors that cause the air compressor to not operate normally, including when the air humidity is relatively high. Here we will briefly introduce the permanent magnet variable frequency air compressors that are more commonly used on the market. When the humidity in the air is high, how can our permanent magnet variable frequency air compressors be waterproof?
1. Check the dryer
The permanent magnet variable frequency air compressor dryer is a good way to remove moisture from the air, and the dryer is an inseparable part. Like the compressor, the dryer is affected by changes in temperature and humidity. As the seasons change and warm days arrive, take some time to check the dryer (and air receiver) to ensure its performance.
2. Keep the drainage unobstructed
Once the permanent magnet variable frequency air compressor removes moisture from the air, it must be drained from the system. Using a drain pipe with an electric valve is a good way to ensure that no water is left in the system. Check the drain pipe to ensure that the drainage is sufficient; excess moisture can cause problems and lead to bacterial growth. It is also important to ensure that the drain pipe is not left open for a long time, as this may cause air loss.
3. Monitoring settings
The monitoring system is always crucial, but it is important to pay attention to it during the change of seasons to ensure that the components can operate effectively. Remote monitoring systems are a good way to observe the compressor from elsewhere and alarm if there are any abnormalities.
The common control loop of permanent magnet variable frequency air compressors includes three main parts, one of which is a sensitive element, which is usually a transmitter. It is a device that can be used to measure the regulated process parameters, such as pressure, liquid level or temperature. The output of the transmitter is sent to the regulating instrument-the regulator, which determines and measures the deviation between the given value or expected value and the actual value of the process parameter, and sends the correction signal to the control element-the regulating valve one by one. The valve changes the flow rate of the fluid so that the process parameter reaches the expected value. The regulating valve has a simple flow path and low resistance, and is generally suitable for forward use (installation). However, in high pressure drop occasions, the regulating valve is used in reverse to improve the unbalanced force and reduce damage to the valve core, which is also conducive to the flow of the medium and avoids coking and clogging of the regulating valve. In general, it is not recommended to use the regulating valve in reverse. It is only recommended to use it in reverse in high pressure difference, high viscosity, easy to coke and containing suspended particles. When used in reverse, long-term operation with a small opening should be avoided, especially during the test run.
4. Throttle valve
The appearance structure of the throttle valve of the permanent magnet variable frequency air compressor is no different from that of the stop valve, except that the shapes of their opening and closing parts are different. The opening and closing parts of the throttle valve are mostly conical streamlines, which change the cross-sectional area of the channel to adjust the flow and pressure. The throttle valve is used to reduce the pressure of the medium when the pressure drop is extremely large.
1. The structure is relatively simple, easy to manufacture and maintain, and low cost.
2. The adjustment accuracy is not high and cannot be used for adjustment.
3. The sealing surface is easily eroded and cannot be used to cut off the medium.
4. The sealing performance is poor.