Gas humidity measuring device and measuring method

Abstract

The invention discloses a gas humidity measuring device and a measuring method. The measuring device comprises a gas inlet pipeline system which is constructed to be capable of heating gas to be measured in the gas inlet pipeline system, a gas supplementing pipeline system which is constructed to be capable of dehumidifying and heating gas in the gas supplementing pipeline system and conveying drygas according to a first preset mass flow q2, a mixing pipeline system which is communicated with the gas inlet pipeline system and the gas supplementing pipeline system, is constructed to convey mixed gas obtained after to-be-measured gas and dry gas are mixed according to a second preset mass flow q3, and the gas outlet end of which is communicated with the outside or communicated with the gassupplementing pipeline system through a circulating pipeline, and a data processing module which calculates the moisture content of the to-be-measured gas in the to-be-measured pipeline according to the first preset mass flow q2, the second preset mass flow q3, the relative humidity phi3, the temperature T3 and the pressure in the measuring chamber. According to the measuring device provided by the embodiment of the invention, online measurement of the gas humidity can be realized, and the measurement result is reliable.

Description

technical field [0001] The invention relates to the field of pipeline gas measurement, in particular to a gas humidity measurement device and a measurement method. Background technique [0002] In the gas humidity measuring device in the related art, when the moisture content or relative humidity of the gas in the pipeline to be tested is too high, the general temperature and humidity sensor cannot be directly installed in the pipeline to be tested for measurement, and the gas to be tested is pumped out. Afterwards, it is generally easy to condense, resulting in inaccurate measurement results. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a gas humidity measuring device, which can realize online measurement of gas humidity in the pipeline to be measured, and at the same time, improve measurement accuracy and reliability. ...

AI Technical Summary

Problems solved by technology

[0002] In the gas humidity measuring device in the related art, when the moisture content or relative humidity of the gas in the pipeline to be tested is too high, the general temperature and humidity sensor cannot be directly installed in the pipeline to be tested for measurement, and the gas to be tested is pumped out. Afterwards, it is generally easy to condense, resulting in inaccurate measurement results.

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