Claims
- 1. A refrigerant recovery and purification system comprising:
- a refrigerant compressor having an input and an output;
- means including evaporator means and an oil separation chamber for connecting said compressor input to a refrigeration system from which refrigerant is to be recovered;
- condenser means coupled to said compressor output in heat exchange relation to said evaporator means for transferring heat from refrigerant in said compressor output to refrigerant in said evaporator means;
- refrigerant storage means;
- means for feeding liquid refrigerant from said condenser means to said refrigerant storage means; and
- wherein said evaporator means and said condenser means are not located within the interior of said oil separation chamber.
- 2. The refrigerant recovery and purification system of claim 1 further comprising:
- filter means for removing contaminants from refrigerant passing therethrough; and
- means for circulating refrigerant in a closed path from said refrigerant storage means through said filter means and back to said refrigerant storage means.
- 3. The refrigerant recovery and purification system of claim 2 wherein said circulating refrigerant means includes said compressor.
- 4. The refrigerant recovery and purification system of claim 2 wherein said filter means comprises means for removing water vapor from refrigerant passing therethrough.
- 5. The refrigerant recovery and purification system of claim 1 wherein said oil separation chamber is comprised of a cylinder, baffle means mounted in the upper portion of the interior of the cylinder such that there is a small space between the baffle means and the interior wall of the cylinder, means above the baffle having an opening permitting gaseous refrigerant to leave the cylinder, and means in the lower portion of the cylinder permitting entry of gaseous refrigerant into the cylinder.
- 6. A refrigerant recovery and purification system comprising:
- a refrigerant compressor;
- an oil separation chamber;
- a heat exchange element comprised of a hot side and a cold side, located outside of said oil separation chamber;
- a refrigerant storage cylinder;
- means including said cold side of said heat exchange element and said oil separation chamber for connecting said compressor to a refrigeration system from which refrigerant is to be recovered; and
- means including said hot side of said heat exchange element for connecting said compressor to said refrigerant storage cylinder.
- 7. In an apparatus for reclaiming refrigerant, means for removing refrigerant from a container and separating oil from the refrigerant, comprising a heat exchanger having a hot side and a cold side, means connecting the cold side of the heat exchanger to the refrigerant container, means for connecting the hot side of the heat exchanger to a source of hot gaseous refrigerant, means for causing refrigerant from the container to flow through the cold side of the heat exchanger, means for passing heated gaseous refrigerant from the heat exchanger into the lower portion of an elongated vertically extending separator tank, baffle means in the upper portion of the separator tank for interrupting the flow of rising expanding hot gaseous refrigerant, the periphery of the baffle means providing a narrow opening between the baffle and the inner wall of the tank to permit escape of gaseous refrigerant around the baffle and a fluid conduit having an inlet above the baffle for removing gaseous refrigerant from the separator tank.
Parent Case Info
This is a continuation of copending application Ser. No. 07/569,229 filed on Aug. 17, 1990, now U.S. Pat. No. 5,072,593, which is a continuation of 07/294,823 filed on Jan. 9, 1989, now abandoned, which is a division of 07/109,958, filed on Oct. 19, 1987, now abandoned.
US Referenced Citations (3)
Divisions (1)
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Number |
Date |
Country |
Parent |
109958 |
Oct 1987 |
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Continuations (2)
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Number |
Date |
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Parent |
569229 |
Aug 1990 |
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Parent |
294823 |
Jan 1989 |
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