| 摘要 |
PURPOSE:To activate the circulation of gas helium by introducing the helium to a gas storage slot and exhausting externally by a coupling pipe through a heat exchanger, thereby clarifying the temperature difference at the inlet and outlet of the helium. CONSTITUTION:Gas helium is introduced by a pipe 20 from the gas helium existing position at the center side of a torque tube 4 to a gas storage slot 18 of the center. The helium is flowed through a plurality of axial cooling slots 13 from the slot 18 toward both end gas storage slots 19. Heated gas helium is externally exhausted through heat exchangers 9 of torque tube extensions 5, 6 by a coupling pipe 23 from the slots 19. |
