How to determine whether a heat exchanger is a pressure vessel
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According to the safety supervision regulations for fixed-pressure vessels, liquids with a volume greater than 30 liters, a diameter greater than 150 mm, and a maximum operating temperature equal to or higher than their standard boiling point are considered pressure vessels. So how is the high-pressure condition for heat exchangers defined? If their diameter is not greater than 150 mm, but all other criteria are met, what then? ?
If I remember correctly, according to the regulations on fixed-volume vessels, all specified conditions must be met simultaneously for something to be considered a pressure vessel; that’s why atmospheric storage tanks are not classified as pressure vessels!
High-pressure chambers are considered based on their respective medium, pressure, temperature, and equipment volume!