| 摘要 |
PURPOSE:To improve energy efficiency by converting the intermediate or low pressure gas compressed after the completion of expansion process to the high- temperature and high-pressure liquid by a gas suction and mixing part formed in an auxiliary process and providing heat energy to a main process. CONSTITUTION:In an auxiliary process, the high-pressure fluid branch-intruduced at the B point from a circulation system passage is pressurized by a pressurizing pump P-2, and jetted out form the nozzle of a jet pump JP-1. Therefore, the intermediate or low pressure gas which is compressed in a compressor C-1 after the completion of expansion process is continuously inhaled from a flow passage connected to the low pressure side and mixed with the high-pressure liquid jetted out from the nozzle and forms high-temperature high-pressure liquid, and flows in the passage between A and B. Therefore, by raising the temperature after the completion of heat exchange higher than the temperature at the start of the heating and pressurization process in a main process, the heat of the fluid in the cooling liquefaction processes A-B-C naturally transfers to the fluid in the heating and vaporization process 3-5 in the main process through the high-pressure heat exchangers E-2 and E-1. |
