Refrigeration by direct vapor condensation

• US 3,108,447 A
• Filed: 12/23/1960
• Issued: 10/29/1963
• Est. Priority Date: 12/23/1960
• Status: Expired due to Term

• Current Assignee: James B. Maher, James Mair
• Original Assignee: James B. Maher, James Mair
• Inventors: Maher, James B., Mair, James
• Application Number:
  US04/078,075
• Time in Patent Office: 1,040 Days
• US Class Current: 62/47.1
• CPC Class Codes: F17C 13/02 Special adaptations of indicating, measuring, or monitoring equipment measuring in general G01
• CPC Class Codes: F17C 2201/0109 with exteriorly curved end-piece
• CPC Class Codes: F17C 2201/0119 with flat end-piece
• CPC Class Codes: F17C 2201/032 with substantially vertical main axis
• CPC Class Codes: F17C 2201/052 large (>1000 m3)
• CPC Class Codes: F17C 2203/0329 Foam
• CPC Class Codes: F17C 2203/035 Glass wool
• CPC Class Codes: F17C 2203/0629 Two walls
• CPC Class Codes: F17C 2221/035 Propane butane, e.g. LPG, GPL
• CPC Class Codes: F17C 2221/037 Containing pollutant, e.g. H2S, Cl
• CPC Class Codes: F17C 2223/0153 Liquefied gas, e.g. LPG, GPL
• CPC Class Codes: F17C 2223/033 Small pressure, e.g. for liquefied gas
• CPC Class Codes: F17C 2227/0121 by gravity
• CPC Class Codes: F17C 2227/0135 Pumps
• CPC Class Codes: F17C 2227/0157 Compressors
• CPC Class Codes: F17C 2227/0341 using another fluid
• CPC Class Codes: F17C 2227/0355 in a closed loop
• CPC Class Codes: F17C 2227/0388 separate
• CPC Class Codes: F17C 2250/0626 Pressure
• CPC Class Codes: F17C 2250/0636 Flow or movement of content
• CPC Class Codes: F17C 2265/034 : with condensing the gas phase
• CPC Class Codes: F17C 2265/035 : with subcooling the liquid phase

Abstract

915,413. Storing liquefied gases. CHICAGO BRIDGE & IRON CO. July 19, 1961 [Dec. 23, 1960]. No. 26076/61. Class 8(2). A vapour relief duct 26 of a heat insulated liquefied gas e.g. butane container 10 is surrounded by a condenser 20 down which passes liquefied gas having been withdrawn from the container by a pump 17 and sub-cooled in an exchanger 14 itself cooled by external refrigeration system 11-13. Any uncondensed low boiling impurities are discharged to atmosphere through a purge line 32, Fig. 2 (not shown).

Claims

1. A REFRIGERATED STORAGE SYSTEM FOR THE STORAGE OF LIQUID, NORMALLY GASEOUS PRODUCTS, SAID SYSTEM COMPRISING:

A LIQUID PRODUCT STORAGE TANK HAVING A LIQUID PRODUCT ZONE AND A VAPOR ZONE;

MEANS CONNECTED TO SAID TANK FOR REMOVING A PORTION OF SAID LIQUID PRODUCT;

REFRIGERATION MEANS CONNECTED TO SAID LIQUID PRODUCT REMOVAL MEANS FOR REDUCING THE TEMPERATURE OF SAID PORTION OF LIQUID PRODUCT;

AND A VAPOR-LIQUID CONTACTOR LOCATED ABOVE SAID TANK, CLOSED TO THE AMBIENT ATMOSPHERE AND DISPOSED BETWEEN AND IN COMMUNICATION WITH SAID VAPOR ZONE AND SAID REFRIGERATION MEANS FOR BRINGING SAID REFRIGERATED PORTION OF LIQUID PRODUCT INTO INTIMATE CONTACT WITH VAPOR WITHDRAWN FROM SAID VAPOR ZONE INTO SAID CONTACTOR, SAID CONTACTOR INCLUDING;

A VERTICALLY DISPOSED CHAMBER PORTION;

AN OUTLET AT THE TOP OF SAID CHAMBER FOR REMOVING ACCUMULATED NON-CONDENSABLE VAPORS;

FLOW CONTROL MEANS ON SAID OUTLET;

PIPE MEANS FOR CONDUCTING VAPOR FROM SAID VAPOR ZONE IN SAID TANK, SAID PIPE MEANS HAVING A VAPOR WITHDRAWING PORTION DEPENDING FROM SAID CHAMBER INTO SAID VAPOR ZONE AND A REMAINING PORTION EXTENDING UPWARDLY WITHIN SAID CHAMBER, SUBSTANTIALLY COEXTENSIVE THEREWITH, AND TERMINATING AT AN UPPER OPENING;