Do chillers fall under the category of special equipment?
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Do the high-temperature evaporators and condensers, as well as the low-temperature evaporators and condensers of chillers, fall under the category of pressure vessels? When I first came into contact with chillers, I didn’t pay attention to these details. As a complete set of equipment, does it fall under the category of special equipment?
Chiller units are generally not classified as special equipment. However, if the operating pressures in their high-temperature evaporators and condensers, as well as low-temperature evaporators and condensers, meet the specified standards, they may be regarded as pressure vessels and thus subject to the relevant safety management regulations for special equipment. Whether it specifically falls under special equipment still needs to be determined based on local regulations and specific parameters. .
It is a complete set of equipment, but the pressure vessel has its own manufacturing certificate; separate certification is required for the pressure vessel
Taking refrigerants as an example, a refrigerant is a compressed liquid; the evaporator and condenser are pressure vessels, while the pipes are pressure pipelines
In accordance with the relevant provisions of the \"Announcement by the State Administration for Market Regulation on Matters Concerning Administrative Licenses for Special Equipment\" (No. 41, 2021), pressure vessels and pressure pipelines installed in skid-mounted equipment are considered special equipment.
1. Do the high-temperature evaporators and condensers, as well as the low-temperature evaporators and condensers of chillers, fall under the category of pressure vessels? ---- That’s usually the case. Whether it is a pressure vessel or not still needs to be determined based on the operating parameters and dimensions of each device. For example, if its operating pressure P is -0.02 MPa < P < 0.1 MPa (gauge pressure), it is not a pressure vessel ； or its diameter