溴化锂制冷技术在浸出油厂的应用  

Application of lithium bromide refrigeration technology in oil leaching plant

作　　者：邹志杰 况楠 刘庆 庞雪风 裴云生 ZOU Zhijie;KUANG Nan;LIU Qing;PANG Xuefeng;PEI Yunsheng(Tianjin Soybean Technology Co.,Ltd.,Jiusan Group,Tianjin 300461,China)

机构地区：[1]九三集团天津大豆科技有限公司,天津300461

出　　处：《中国油脂》2020年第10期141-144,共4页China Oils and Fats

摘　　要：对浸出油厂二蒸产生的二次蒸汽热能、汽提毛油的热能利用进行了研究。通过加装溴化锂制冷机,将溴化锂制冷机出来的75℃循环热水与二蒸产生的二次蒸汽和汽提毛油通过换热器制成95℃的热水,用于溴化锂制冷机吸热系统。从溴化锂制冷机出来的7℃的冷冻水用于给尾气和石蜡油降温,之后升温到12℃再回到溴化锂制冷机制冷系统中进行循环。通过使用溴化锂制冷机,2500 t/d大豆加工厂的溶耗下降了0.13 kg/t(以大豆质量计),同时降低了冷凝系统循环水的热负荷1172979.04 kJ/h,对浸出油厂的生产稳定和经济效益提高有重要的意义。The utilization of the thermal energy of the secondary steam produced by the secondary evaporation and the thermal energy of the stripped crude oil was studied.By installing a lithium bromide refrigerator,the 75℃ cycling hot water from the lithium bromide refrigerator was heated to 95℃ by the thermal energy of the secondary steam and the stripped crude oil through heat exchanger for heat absorption system of the lithium bromide refrigeration.The 7℃ frozen water form the lithium bromide refrigerator was used to cool the exhaust gas and paraffin oil,and then the forzen water with 12℃ was returned to the refrigeration system of the lithium bromide refrigerator for recycling.Through the use of lithium bromide refrigerator,the solvent consumption for the 2500 t/d soybean processing plant was reduced by 0.13 kg/t(on the basis of soybean mass),and the heat load of the condensation system was reduced by 1172979.04 kJ/h.The design was of great significance to the stability of production and the improvement of economic benefits of oil leaching plants.

关 键 词：溴化锂制冷 二次蒸汽 热能 毛油热能 尾气温度 石蜡油温度 

分 类 号：TS647[轻工技术与工程] TQ644[化学工程—精细化工]