| 摘要 |
Provided is a purge apparatus for removing foreign non-condensable gases from a refrigeration system. The purge apparatus includes a closed purge chamber adapted to receive foreign gases together with a portion of the refrigerant from the high pressure region of the refrigeration system. The purge chamber is cooled to condense the refrigerant. During a Purge Mode, the purge chamber is isolated from the refrigeration system, and gases and a portion of the refrigerant in the purge chamber are vented to a gas separation tank. Adsorbent material in the gas separation tank adsorbs refrigerant and the other gasses are vented from the gas separation tank to the atmosphere. During a Quiet Mode, condensed refrigerant is drawn from the purge chamber to the low pressure portion of the refrigerant system, and a vacuum is drawn on the gas separation tank and the gas separation tank is heated to draw refrigerant from the adsorbent material. The gas separation tank is heated by a coil through which gasses from the high pressure portion of the refrigeration system pass on their way to the purge chamber, where the gasses are further cooled. Thus, an energy efficient heat source that is essentially free is utilized to heat the gas separation tank.
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