Answer: The corresponding relationship between pressure dew point and atmospheric pressure dew point is related to the compression ratio. Under the same pressure dew point conditions, the greater the compression ratio, the lower the corresponding atmospheric pressure dew point. For example: When the pressure dew point of compressed air of 0.7MPa is 2℃ , it is equivalent to the atmospheric pressure dew point of -23℃ . When the pressure is increased to 1.0MPa, when the pressure dew point is 2℃ , the corresponding atmospheric pressure dew point drops to -28℃.
