Refrigeration – Storage of solidified or liquified gas – Liquified gas transferred as liquid
Patent
1997-10-23
1999-06-29
Kilner, Christopher B.
Refrigeration
Storage of solidified or liquified gas
Liquified gas transferred as liquid
62 491, F17C 702
Patent
active
059162465
ABSTRACT:
Both an system and method are provided for transferring liquid carbon dioxide from a storage tank pressurized at 300 psi to a truck-transportable tank pressurized at about 110 psi. The system includes an inlet conduit having a hose portion connected between the storage and transportable tanks for conducting a flow of liquid carbon dioxide therebetween, and a vent hose connected to the transportable tank for venting gaseous carbon dioxide. Pressure regulators are connected to the inlet and vent hoses, respectively. In operation, the pressure regulator connected to the inlet conduit reduces the pressure of the flow of liquid carbon dioxide entering the transportable tank from 300 psi to 175 psi, while the pressure regulator connected to the vent conduit maintains a back pressure of 110 psi in the transportable tank while the allowing the venting of gaseous carbon dioxide. Automatic shut-off and purging mechanisms are provided for shutting off the flow of liquid carbon dioxide when the transportable tank is filled, and purging the inlet hose. A muffler is connected to the outlet of the vent hose for reducing the noise associated with the venting of gaseous carbon dioxide. The system allows an operator to easily and automatically fill a transportable cryogenic storage tank with liquid carbon dioxide with a minimum amount of waste and noise.
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Buenz Mark J.
Desta Girma G.
Viegas Herman H.
Wojciechowski Gary W.
Gnibus Michael M.
Kilner Christopher B.
Thermo King Corporation
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