FIELD: liquefaction, solidification or separation of gases.
SUBSTANCE: in the natural gas partial liquefaction plant located at the gas distribution station (GDS), natural gas is supplied from the main gas pipeline through the distribution unit of the gas distribution station. Wherein annular nozzle of external expansion is used to cool gas to liquefied state so that swirler is arranged in nozzle throat zone to create outer boundary of gas jet cooled to liquid state. Cylindrical shell of the nozzle is attached to the Eiffel chamber, to which, in its turn, a supersonic diffuser is attached axially symmetric to the nozzle. Inlet part of the supersonic diffuser is equipped with a shell forming an annular slot with the diffuser at the level of the outer boundary of the gas jet behind the nozzle for receiving liquefied gas particles. Supersonic swirled jet flowing from the nozzle of external expansion, not limited by walls of the diffuser, is a free boundary, which provides the lowest gas temperature sufficient for its liquefaction. Annular slot is equipped with a collector, the lower part of which is connected to the liquefied gas collection tank, and the upper part is connected to the cavity of the Eiffel chamber for gas return to the supersonic diffuser and then to the outlet from the GDS together with the main gas flow.
EFFECT: simplified design of the plant.
2 cl, 2 dwg
Title | Year | Author | Number |
---|---|---|---|
PLANT FOR PARTIAL LIQUEFACTION OF NATURAL GAS LOCATED AT THE GDS | 2022 |
|
RU2790214C2 |
GAS DISTRIBUTION STATION | 2002 |
|
RU2225567C1 |
GAS LIQUEFACTION UNIT | 2010 |
|
RU2446369C2 |
HEAT GENERATOR | 2003 |
|
RU2251640C1 |
METHOD OF AND DEVICE FOR PROVISION OF REGULATED NONHEATED REDUCTION OF PRESSURE OF MAIN-LINE NATURAL GAS | 1999 |
|
RU2162190C1 |
DEVICE FOR DRYING OF COMPRESSED AIR OR GAS | 1991 |
|
RU2022619C1 |
DEVICE FOR HEATING PROCESS GAS IN A GAS DISTRIBUTION STATION | 2017 |
|
RU2655426C1 |
METHOD OF NONHEATED PRESSURE REDUCTION OF MAIN-LINE NATURAL GAS AND DEVICE FOR ITS EMBODIMENT | 1999 |
|
RU2163323C1 |
SUPERHEATED WATER DEAERATOR | 2011 |
|
RU2488741C2 |
METHOD OF OPERATION OF GAS DISTRIBUTION STATION AND DEVICE FOR ITS IMPLEMENTATION | 2022 |
|
RU2802353C1 |
Authors
Dates
2025-04-22—Published
2024-06-10—Filed