制冷学报
製冷學報
제랭학보
JOURNAL OF REFRIGERATION
2014年
4期
104-107
,共4页
申江%路坤仑%李慧杰%丁峰
申江%路坤崙%李慧傑%丁峰
신강%로곤륜%리혜걸%정봉
热气融霜%保温融霜装置%温度场
熱氣融霜%保溫融霜裝置%溫度場
열기융상%보온융상장치%온도장
hot gas defrosting%heat insulation defrosting device%temperature distribution
为了减小融霜热在融霜过程对冷库库温变化的影响,对库内冷风机增设保温融霜装置,并进行了实验研究。结果表明保温融霜和非保温融霜两种过程,库内上方区域温度均有较大变化。保温融霜过程温度变化相对较小,其整体波动温差比非保温融霜低3.2℃,且保温融霜方式的融霜时间缩短近300 s;证明保温融霜装置在融霜过程中能够起到稳定库内温度和缩短融霜时间的作用。
為瞭減小融霜熱在融霜過程對冷庫庫溫變化的影響,對庫內冷風機增設保溫融霜裝置,併進行瞭實驗研究。結果錶明保溫融霜和非保溫融霜兩種過程,庫內上方區域溫度均有較大變化。保溫融霜過程溫度變化相對較小,其整體波動溫差比非保溫融霜低3.2℃,且保溫融霜方式的融霜時間縮短近300 s;證明保溫融霜裝置在融霜過程中能夠起到穩定庫內溫度和縮短融霜時間的作用。
위료감소융상열재융상과정대랭고고온변화적영향,대고내랭풍궤증설보온융상장치,병진행료실험연구。결과표명보온융상화비보온융상량충과정,고내상방구역온도균유교대변화。보온융상과정온도변화상대교소,기정체파동온차비비보온융상저3.2℃,차보온융상방식적융상시간축단근300 s;증명보온융상장치재융상과정중능구기도은정고내온도화축단융상시간적작용。
In order to reduce the effect of defrosting heat on the cold storage temperature change during defrosting process,a heat insula-tion defrosting device is additionally provided to the air cooler in the storage,and the experimental study on the defrosting process was car-ried out. The results showed that in the defrosting processes with and without heat insulation,the temperature of the upper area in the stor-age changed greatly. The temperature changes relatively small during the defrosting process with heat insulation,and the overall fluctua-ting temperature is 3. 2 ℃ lower than that without heat insulation. In the meantime,the defrosting time with heat insulation is shortened by nearly 300s,which proves that the insulation defrosting device can stabilize the storage temperature and shorten the defrosting time in the defrosting process.