Refrigeration – Storage of solidified or liquified gas
Patent
1986-05-28
1987-06-23
Capossela, Ronald C.
Refrigeration
Storage of solidified or liquified gas
62514R, F25J 300
Patent
active
046742905
ABSTRACT:
An apparatus and method for controlling the venting of vapor from a vessel utilizes a differential vapor pressure detection means to measure the difference between vapor pressure in the vessel and the vapor pressure associated with a reference sample which is exposed to the temperature conditions within the vessel. Vapor venting from the vessel is controlled in response to the measured pressure difference. In a preferred embodiment, the invention is applied to a refrigeration system which uses impure refrigerant in its operation and a substantially pure refrigerant for the reference sample, wherein impurities are vented from a refrigerant-containing surge vessel.
REFERENCES:
patent: 3319432 (1967-05-01), Nebgen
patent: 3320756 (1967-05-01), Hashemi
patent: 3383881 (1968-05-01), Bailey
patent: 3474633 (1969-10-01), Bailey
patent: 3478529 (1969-11-01), Boykin
patent: 3809153 (1974-05-01), Kober
patent: 4358346 (1982-11-01), Shinskey
"Armstrong Guide to Refrigerated Purging," Armstrong Bulletin No. 702-C, published by Armstrong Machine Works of New Braunfels, Texas, pp. 1-15.
Blackburn, G. A. et al., "Effect of Composition on Propane Refrigeration Systems," published by Gas Processing Association, pp. 1-3.
Capossela Ronald C.
Phillips Petroleum Company
Sharp William R.
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