检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:牛斌[1]
机构地区:[1]山西兰花科技创业股份有限公司,山西晋城048000
出 处:《化肥设计》2012年第4期12-15,共4页Chemical Fertilizer Design
摘 要:在水溶液全循环法尿素工艺中,闪蒸槽产生的0.36 MPa(绝)蒸汽用于保温伴热,多余的蒸汽外供造气。由于这部分蒸汽在使用过程中热能损失巨大,笔者探讨性地提出了将1级闪蒸得到的0.63 MPa(绝)蒸汽用于吸解系统,2级闪蒸得到的0.36 MPa(绝)蒸汽用于保温伴热和外供造气的节能改造方案;进行了1级闪蒸和2级闪蒸的模拟分析计算和解吸塔热平衡计算;分析论证了2级闪蒸槽蒸汽用气的经济性;结果表明,1级闪蒸蒸汽用于解吸系统不仅可行且经济效益显著,2级闪蒸蒸汽可以满足造气系统的使用条件。In urea process with water solution full circulation method, the steam with a pressure of 0. 36 MPa (a) produced from flashing tank was used for tracing insulation, and the remainder steam was supplied outside for gasification. Since the heat energy loss was very enormous for this portion of steam, author has proposed for discussion that taking the steam with a pressure of 0.63 MPa (a)obtained from first class flashing was used for adsorption system, and the steam with a pressure of 0.36 MPa (a) obtained from second class flashing was used for energy conservation and reformation scheme i. e. for insulation tracing and supply outside for gasification; author has made analog analysis calculation and heat balance calculation of adsorbing tower for both first class flashing and second class flashing; has analyzed and proved the economy for gas usage of the two classes flashing tanks ; result indicates that not only the steam from first class flashing is feasible to be used for adsorption system, but also economic benefit is obvious, moreover the steam from second class flashing can satisfy the operating condition of gasification system.
关 键 词:尿素装置 水溶液全循环法 蒸汽冷凝液 闪蒸槽 热能回收
分 类 号:TQ441.41[化学工程—化学肥料工业]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.222