Compressed air automatic drainage system

Abstract

The invention relates to a compressed air automatic drainage system. The system comprises a drainage module, a monitoring module and a control module, wherein the drainage module comprises an air drain valve connected with a drainage port of an air tank and a second discharge port, and a drainage port of the air drain valve serves as a first discharge port; a solenoid valve is arranged on the second discharge port and is in a normally closed state; the air side of the air drain valve communicates with the interior of the air tank through a balance pipe; the monitoring module comprises a liquid level monitoring module and a humidity monitoring module; the liquid level monitoring module comprises a liquid level sensor arranged on the inner side wall of the air tank, and the liquid level sensor is electrically connected with the control module and used for collecting liquid level data in the air tank; the humidity monitoring module is used for collecting humidity data of air exhausted from the air tank and is electrically connected with the control module; and the control module controls the solenoid valve to be opened and closed according to the collected liquid level data and humidity data. According to the system, condensate water is automatically discharged through the air drain valve, and the pressure fluctuation of a compressed air main pipe is reduced.

Description

technical field [0001] The invention relates to a compressed air automatic drainage system, which belongs to the technical field of compressed air drainage. Background technique [0002] Compressed air is widely used in industry. The air compressor absorbs air from the atmosphere, generates compressed air after compression, and transports it to air-consuming equipment through pipelines. In power plants, compressed air can be used as a power source to provide power to pneumatic actuators to drive valves, and can also be used for blowing various equipment. [0003] In the process of generating compressed air by the air compressor, since the inhaled air contains a certain amount of moisture, condensed water will be generated during the compression process. During the transportation of compressed air, due to the influence of ambient temperature, condensed water will also be generated in the transportation pipeline and compressed air storage tank. The condensed water in the com...

AI Technical Summary

Problems solved by technology

The condensed water in the compressed air system must be discharged in time, otherwise it will affect the normal operation of the gas-consuming equipment and seriously damage the gas-consuming equipment permanently

[0004] At present, there are two commonly used ways to discharge condensate in compressed air systems: the first is to manually discharge condensate, the power plant staff opens the drain valve every 1-2 hours, and closes the drain valve after the condensate discharge lasts for 10-20s. The disadvantage is that the maintenance personnel cannot judge whether the condensed water has accumulated in the pipeline or the air tank, and cannot discharge the condensed water in time, and when the drain valve is opened to discharge the condensed water, the compressed air will be discharged at the same time, which may easily cause pressure fluctuations and Waste of air source energy; the second is to install a solenoid valve at the drain pipe to automatically discharge condensed water, open the solenoid valve every 10 minutes to drain, and close the solenoid valve after the condensed water discharge lasts for 5-10s. The disadvantage is that the solenoid valve After many actions, the valve core is easy to get stuck, causing drainage failure, and there are also problems of main pipe pressure fluctuation and energy waste of air source

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