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由兰州石油机械研究所开发的新型高效冷却器,即表面蒸发式空气冷却器,在兰州炼油化工总厂26单元第3套酮苯脱蜡装置作氨冷凝冷却器投运获得成功。该厂原采用干空冷后加8台直径1m的立式水冷器,由于冷却效果不好,致使氨的出口温度过高,影响正常操作。后经兰石所与兰炼合作改用蒸发空冷后,完全代替了原用的8台后水冷器,使氨的出口温度接近环境湿球温度,达到冷却要求。而且一次性投资仅为原水冷器的58％,年操作
The new high-efficiency cooler developed by Lanzhou Petroleum Machinery Research Institute, the surface-evaporative air cooler, was successfully put into operation as ammonia condensing cooler in the third unit of ketone-benzol dewaxing unit in unit 26 of Lanzhou Refining and Chemical Plant. The original plant after the use of dry air cooling plus 8 1m diameter vertical water cooler, due to poor cooling effect, resulting in ammonia outlet temperature is too high, affecting normal operation. After Lan Shi and Lan Lian switch to evaporative air-cooled, completely replaced the original 8 after the water cooler, so that the ammonia outlet temperature close to the ambient wet bulb temperature, to meet the cooling requirements. And one-time investment is only 58% of the original water cooler, the year of operation