Refrigeration – Refrigeration producer – With refrigerant treater
Patent
1991-04-18
1991-10-29
King, Lloyd L.
Refrigeration
Refrigeration producer
With refrigerant treater
62 85, 62476, F25B 4304
Patent
active
050604872
ABSTRACT:
An absorption refrigeration system having absorber and generator elements and a solution pump flowing relatively dilute refrigeration solution from a system absorber sub-atmospheric operating pressure to a system generator operating pressure is provided with novel low-pressure-differential, positive-displacement purge pump apparatus that is driven by bleed relatively dilute refrigeration solution taken from the solution pump high-pressure side, flowed through a coiled tube flow restrictor device to substantially reduce bleed solution operating pressure, and then through an inverted vertical U-tube that includes a V-shaped entrapment zone that receives un-wanted, non-condensed gases purged from the system absorber element. The entrapped un-wanted gases are composed by gravitational forces and then flowed through the system solution pump to the generator element for re-separation and for subsequent accumulation and venting to the atmosphere without requiring system shut-down for purging purposes or the use of a separate mechanical vacuum pump.
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Gas Research Institute
King Lloyd L.
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