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I would like to ask the experts: I plan to install a new chiller unit in my facility – an ethylene glycol-based chiller. The compressor used in this chiller operates with fluorine-based refrigerants. My facility is equipped with a propane and butane distillation unit. According to fire safety regulations, can this equipment be considered to meet the requirements? Note: 1. Combustible gas compressors with a single-unit driving power of less than 150 kW can be classified as “other process equipment” with an operating temperature below their auto-ignition point, and accordingly, the fire separation requirements can be determined accordingly; ”Under this clause, it is not necessary to establish safety distances using two different sets of process equipment, at 25 meters for example, just because the medium used is ethylene glycol and Freon, which are different from media such as propane Someone skilled please show up!
Whether to apply the tables in Chapter 5 depends on whether this chiller is designed specifically for your distillation unit; if it is also used by other units or facilities in addition to the distillation unit, then the layout spacing rules in Chapter 4 must be followed! If it is designed specifically for distillation units, simply follow the table in Chapter 5 – there is no need to consider whether the media are the same or not!
Thank you! So, according to the general layout, which category in Table 4.2.12 is it? Is it a process unit or an important facility for the entire plant? Also, must this device be 35 meters away from the circulating water cooling tower? Please give me some advice!
Freezing can be considered a utility! If it is intended for use throughout the entire plant, it can be regarded as an important facility for the whole plant; if it is used only by certain units, it can be considered an important facility at a regional level. The safety distance should be determined in accordance with the relevant standards!
35 meters from the circulating water tower, which one is used as the reference?
Circulating water is the second-class critical facility in the entire plant; process units must be at a distance of 35 meters from it
This post was last edited by greygreyfly on 2017-1-18 at 12:15. Since this system is used only for cooling, is there any regulation regarding the distance required in the case of important regional facilities? I beg! Additionally, can the distance be determined according to class A gas compressors?
It is designed for use with specific equipment; even if it is part of a distillation unit, simply ensure there is an appropriate distance between the distillation unit and the circulating water system as per the overall layout plan The spacing between the chiller and other equipment in the distillation unit is given in the table in Chapter 5!