An online detection device for compressed air humidity

Abstract

The invention relates to an online detection device for compressed air humidity. The online detection device is used for humidity detection of a high-pressure air pipeline of an air compressor. The device comprises a processor, and a switching valve, a decompression valve, a dew point sensor and a flow meter which are connected in sequence through a pipeline, wherein the switching valve is connected with the high-pressure air pipeline; the flow meter is connected with the external atmosphere; the dew point sensor is connected with the processor; when the humidity detection of the high-pressure air pipeline is carried out, the switching valve and the decompression valve are switched on, and air in the high-pressure air pipeline is guided into the dew point sensor; the flow of daily air is detected by the flow meter, and data detected by the dew point sensor is transmitted to be processor; and meanwhile, the residual air is discharged into the atmosphere after the detection. Compared with the prior art, the online detection device for the compressed air humidity has the advantages of convenience for detection, safety in operation, accurate monitoring data and the like.

Description

technical field [0001] The invention relates to a humidity detection device, in particular to an online detection device for compressed air humidity. Background technique [0002] In the traditional compressed air humidity detection, the dew point meter is usually used to directly extend into the pipeline for measurement. Since the dew point meter is placed in an open environment, it has the following disadvantages: [0003] 1. Inconvenient maintenance; [0004] 2. The air pressure in the pipeline fluctuates greatly, which is easy to cause changes in the dew point data, and the error is high; [0005] 3. The dew point probe cannot be fully inserted into the pipeline, resulting in inaccurate measurement data; [0006] 4. Pollutants carried by the sample gas will damage the dew point meter, resulting in high failure rate and high maintenance cost [0007] Chinese patent CN204008528U discloses a gas detection conduit device externally connected to a portable dew point meter,...

AI Technical Summary

Problems solved by technology

[0003] 1. Inconvenient maintenance;

[0004] 2. The air pressure in the pipeline fluctuates greatly, which is easy to cause changes in the dew point data, and the error is high;

[0005] 3. The dew point probe cannot be fully inserted into the pipeline, resulting in inaccurate measurement data;

[0006] 4. Pollutants carried by the sample gas will damage the dew point meter, resulting in high failure rate and high maintenance cost

When the device measures humidity, it cannot control the flow of air flowing into the dew point meter, resulting in inaccurate measurement and difficult operation

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