| 摘要 |
<p>A BOG re-liquefying apparatus in storage tank of LNG using dilation turbine and dilation pipe for stabilizing LNG is provided to bring down further the temperature of nitrogen gas by using dilation turbine and dilation pipe, to respond more easily to the dynamic changes of BOG, to stabilize the cryogenic state in outlet of the dilation turbine, to minimize temperature increase during transportation of nitrogen gas, and to prevent the cold loss through the integrated administration in the cold box. The BOG re-liquefying apparatus in storage tank of LNG using dilation turbine and dilation pipe for stabilizing LNG includes: BOG compressors(40,41); BOG condensers(50); and a nitrogen cycling device. The nitrogen cycling device comprises: a nitrogen pressurizing cooling implement; the first nitrogen heat exchanger(70) cooling the nitrogen gas transferred from the nitrogen pressurizing cooling implement; and the first and second dilation implements to generate cryogenic nitrogen gas with low pressure.</p> |
