船海工程
船海工程
선해공정
SHIP & OCEAN ENGINEERING
2015年
4期
79-81,87
,共4页
自流喷水冷却装置%降温效果%排气管
自流噴水冷卻裝置%降溫效果%排氣管
자류분수냉각장치%강온효과%배기관
spouting water cooling device of gravity flow%cooling effect%exhaust pipe
为降低柴油机排气温度，根据流体力学、热力学和喷射器的基本原理对安装在柴油机排气管路上的自流喷水冷却装置降温效果进行理论计算和分析，结合模拟试验完成自流喷水冷却装置结构的方案设计。使用表明，该装置将柴油机排气温度降低至100℃，可有效降低排气红外辐射特征，柴油机的排气背压没有明显增加。
為降低柴油機排氣溫度，根據流體力學、熱力學和噴射器的基本原理對安裝在柴油機排氣管路上的自流噴水冷卻裝置降溫效果進行理論計算和分析，結閤模擬試驗完成自流噴水冷卻裝置結構的方案設計。使用錶明，該裝置將柴油機排氣溫度降低至100℃，可有效降低排氣紅外輻射特徵，柴油機的排氣揹壓沒有明顯增加。
위강저시유궤배기온도，근거류체역학、열역학화분사기적기본원리대안장재시유궤배기관로상적자류분수냉각장치강온효과진행이론계산화분석，결합모의시험완성자류분수냉각장치결구적방안설계。사용표명，해장치장시유궤배기온도강저지100℃，가유효강저배기홍외복사특정，시유궤적배기배압몰유명현증가。
In order to reduce the diesel engine exhaust temperature, the cooling effect of spouting water cooling device of gravity flow which is installed in the diesel engine exhaust pipe is analyzed and calculated by fluid mechanics, thermodynamics and the basic principle of ejector.Combined with the simulation test, the structure of spouting water cooling device is designed. The practical application of the device show that the diesel engine exhaust temperature is lowered to 100℃, and reduce charac-teristics of the exhaust infrared radiation effectively, besides, the diesel engine exhaust back pressure is not obviously increased.
