What is the dew point, how to measure it?
What is the dew point?
Dew point is to make the water vapor condensation dew or frost in the air and the air must be cooled to the temperature.At any temperature, air can hold the water steam.This is known as the maximum saturation vapor pressure.Lead to more water vapor condensation.
Why is water problems?
Pressurized air in the condensation will bring problems, because it can lead to blockage, mechanical failure, pollution and frozen.
What is the effect of stress on dew point?
Compressed air will increase water vapor pressure, and thus lead to the dew point.If you in front of the measurement are air emissions into the atmosphere, must consider it.Measurement point of dew point will be different from dew point in the process of technology.
What is the general scope of the dew point?
Under special circumstances, the compressed air's dew point temperature could be reduced from ambient temperature to 80 ° C (112 ° F).Nothing is more prone to gas compressor system which has the function of the dry saturated compressed air under ambient temperature.The compressed air通过冷干机系统中的热交换器冷却压缩空气，导致气体中的水冷凝析出。这些系统通常产生露点不低于 5 °C (41°F) 的空气。吸干机系统中的干燥剂从压缩空气中吸收水蒸汽，可产生露点为 -40 °C (-40 °F) 的空气，必要时可进一步干燥。
How to reliably measure the dew point?
- Choose to have correct measurement range of the instrument.
- Understand the pressure characteristics of dew point meter: visa of the instrument is suitable for use in the process of process pressure, but some instrument is not at all.These instruments can be compressed air after expansion to atmospheric pressure of compressed air to measure, but if the pressure dew point measuring parameters as required, must be on measuring the dew point of value.
- Correct installation of sensors: according to the manufacturer's instructions.Don't in the end of the short tube or other no "dead zones" part of the air piping installation dew point sensor.
For more information about compressed airOr scroll down to see the visa of dew point meter.
