| 摘要 |
<p>PURPOSE:To automatically maintain the ethylene concentration in an environmental gas in a housing storage building 1 at the set concentration. CONSTITUTION:An output of an ultraviolet lamp (3A) is controlled according to a deviation of the ethylene concentration in an environmental gas at the inlet of a gas passage 8 sensed with a concentration sensor 20 from the set concentration set by a concentration setter 33 and the number of revolutions of a blower 5 is simultaneously controlled according to the aforementioned output.</p> |
