Instrument for measuring humidity ratio of treatment media and measuring method using same

Abstract

This invention relates to measurement method for medium moisture content device and its method, which comprises three-way valve, vacuum generator, boiling flask, single valve, drying device and vacuum list, wherein, the drying device is laid with drying agent; the one end of three-way valve is connected with drying device and the other end with vacuum generator and with third end as testing medium entrance; the other end of drying device is connected to the flask through single valve; the flask side tube is connected to the vacuum list.

Description

technical field [0001] The invention relates to the tobacco industry, in particular to a method for measuring the moisture content of a treatment medium in the tobacco processing process. technical background [0002] In the current food processing industry, research involving drying and remoisturization is quite extensive, especially in the field of tobacco processing. Tobacco processing needs to go through several drying and rehydration processes. In this process, the change of the properties of the processing medium is an important factor affecting the processing quality. Therefore, in the process of tobacco processing, the detection and control of temperature and humidity are very necessary. [0003] At present, the measurement and control of the moisture content of the treatment medium in the process of drying and regaining moisture is through the measurement of the temperature and humidity sensor and the dry and wet bulb temperature. There are certain defects in the e...

AI Technical Summary

Problems solved by technology

There are certain defects in the existing instruments and measurement methods, especially in the measurement of humidity. Specifically, the temperature and humidity sensor is characterized by being easy to operate and control, but the test has requirements for the ambient temperature, that is, the temperature and humidity sensor that can be purchased is the highest. The test temperature is 180°C, and the output data at the same time is the temperature and relative humidity value or dew point temperature. When the temperature of the processing medium to be tested exceeds 180°C at the test site, the existing temperature and humidity sensor is powerless, and the dry The wet bulb temperature measurement environment is also not easy to meet the requirements of high temperature measurement

In addition, when the temperature and humidity sensor is measured at normal pressure and 180°C, the accuracy of the output relative humidity value is 0.1. Due to the relatively low accuracy, especially the change value, it is easy to cause a larger system error, and it is not convenient to adjust the system in time.

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