KDN-08A型凯氏定氮仪冷却及蒸馏给水系统的改进  

Improvement on cooling and distillation system of KDN-08A Kjeldahl nitrogen apparatus

作　　者：杨广超[1] 王锦化[2] 陈相如[1] 唐晶晶[1] 

机构地区：[1]徐州师范大学科文学院,徐州221116 [2]徐州师范大学化学化工学院,徐州221116

出　　处：《分析仪器》2011年第2期18-20,共3页Analytical Instrumentation

摘　　要：为解决KDN-08A凯氏定氮仪不适于硬水和缺水地区使用的问题,将其冷却水和蒸发器给水管路改为去离子水循环系统。改进后工作3h水垢集结量仅为改进前的1/497,节水140余倍,有效地解决了水资源浪费和水垢堵塞管道的问题,且检测准确度与原定氮仪无明显差异。KDN-08A Kjeldahl nitrogen apparatus can not be used properly in hard water and water shortage areas because of pipeline blockage and water waste.In order to solve this problem,the feedwater line of the cooling system and the evaporator was transformed into a deionized water recycling system.The dirt accumulated after the improved apparatus worked for 3 hours was only 1/497 of the dirt accumulated before the apparatus was improved,and more than 140 times water was saved.Thus the problems of pipeline blockage and water waste were solved effectively.The accuracy of the improved apparatus has no obvious difference with that of the original one.

关 键 词：蛋白质 凯氏定氮仪 冷却水 水垢 

分 类 号：TH83[机械工程—仪器科学与技术]