The true purpose of measuring the nitrogen dew point
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1. Is the true purpose of measuring the nitrogen dew point to determine the purity of nitrogen, and to check whether the nitrogen has been completely displaced? 2. So, can the following devices be used: dew point meters, portable dew point meters, nitrogen analyzers, and nitrogen measurement instruments? 3. Where in a polysilicon plant should dew point be measured, such as with an online dew point analyzer (except at the nitrogen production station)?
Measuring the dew point is primarily done to determine the moisture content in nitrogen and to check whether the drying system is functioning properly. A dew point meter, or a portable dew point meter, can be used for this purpose; there is no need to conduct such measurements at nitrogen production stations, unless it is done before starting up the system.
Nitrogen displacement and heating are required in many applications; if the nitrogen contains high levels of moisture and cannot be purged properly, it will accumulate and enter the system, ultimately having an adverse effect on the final product.
Is it necessary to measure the dew point of nitrogen during its displacement in the reduction furnace as well?
The actual purpose of measuring the nitrogen dew point is to determine the moisture content in the system. In polysilicon production, the moisture level required in the system is less than 4 PPM, while the instruments used in the system require a dew point of less than –40 degrees.
The guy upstairs is right; the most important requirement for measuring dew point is dryness
So, what range of nitrogen dew point is considered acceptable during the replacement of the material pipeline?
Measuring the nitrogen dew point is intended to ensure dryness in the process; the impact of moisture in pipes and equipment on production is something the original poster must be aware of.
It is mainly to prevent the products from being contaminated
The main purpose of measuring the dew point in our factory is to determine its moisture content.
It’s been processed; it will dry soon. Thank you.