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循环流化床烟气脱硫床料的质量平衡和化学成份的变化 被引量:4
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作者 樊保国 祁海鹰 +2 位作者 由长福 陈昌和 徐旭常 《热能动力工程》 EI CAS CSCD 北大核心 2001年第3期319-321,共3页
对循环流化床内脱硫过程中床料的质量、化学成份的变化进行了理论分析 ,发现当选定循环倍率 5~ 5 0后 ,只要分离器的效率达到 83%~ 98% ,床内就可以维持质量平衡。当操作参数变化引起床内物料质量改变时 ,改变离开床的床料量可以很快... 对循环流化床内脱硫过程中床料的质量、化学成份的变化进行了理论分析 ,发现当选定循环倍率 5~ 5 0后 ,只要分离器的效率达到 83%~ 98% ,床内就可以维持质量平衡。当操作参数变化引起床内物料质量改变时 ,改变离开床的床料量可以很快达到平衡 ;而化学成份的动态是不平衡的 ,它的过渡过程与床内的床料量、反应产物的产率以及相关参数的变化幅度等有关。 展开更多
关键词 循环流化锅炉 烟气脱硫 床料质量 化学成份
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循环流化床锅炉物料平衡分析 被引量:35
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作者 杨海瑞 岳光溪 +1 位作者 王宇 吕俊复 《热能动力工程》 EI CAS CSCD 北大核心 2005年第3期291-295,共5页
循环流化床物料平衡是循环流化床燃烧的核心和基础,它影响到循环流化床燃烧效率和脱硫效率,并决定燃烧室内的热负荷分布。循环流化床“一进二出”的物料平衡系统是循环流化床的核心概念,也是理解循环流化床物料平衡的关键。本文介绍并... 循环流化床物料平衡是循环流化床燃烧的核心和基础,它影响到循环流化床燃烧效率和脱硫效率,并决定燃烧室内的热负荷分布。循环流化床“一进二出”的物料平衡系统是循环流化床的核心概念,也是理解循环流化床物料平衡的关键。本文介绍并分析了循环床物料平衡的某些问题,如循环流化床定态设计、床料质量和物料平衡模型等。循环流化床运行需要高的“床料质量”和较大物料循环量,要求流化床锅炉分离器分离效率曲线存在一个清晰的100%分离粒径截止点。循环流化床内物料平衡除了受分离器效率影响外,还受到给煤成灰及磨耗特性、床内颗粒分层、排渣方式及效率等因素的影响。 展开更多
关键词 循环流化 平衡 床料质量 定态设计
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Retrospective study of Traditional Chinese Medicine treatment of type 2 diabetes mellitus 被引量:11
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作者 Pang Bing Guo Jing +3 位作者 Zhao Linhua Zhao Xiyan Zhou Qiang Tong Xiaolin 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2016年第3期307-313,共7页
OBJECTIVE: To provide clinical evidence in support of Dahuang Huanglian Xiexin decoction(DHXD) to treat type 2 diabetes mellitus(T2DM) and to introduce a new treatment option for clinicians.METHODS: Retrospective anal... OBJECTIVE: To provide clinical evidence in support of Dahuang Huanglian Xiexin decoction(DHXD) to treat type 2 diabetes mellitus(T2DM) and to introduce a new treatment option for clinicians.METHODS: Retrospective analysis was used to evaluate DHXD for the treatment of T2DM by analyzing clinical records of 183 cases. Patients with T2DM who met the inclusion criteria between January 1,2013 and January 1, 2014 were enrolled. The effects of the treatment were evaluated by the changes in fasting blood-glucose(FBG), postprandial blood sugar(PBG), hemoglobin A1c(Hb Alc), blood lipid profiles and body mass index(BMI) at 1, 2, 3 and 6 months. The changes in main symptoms were alsoevaluated. The dosage of Huanglian(Rhizoma Coptidis) and related factors were analyzed.RESULTS: There was a significant improvement in mean Hb A1C at 3 and 6 months after DHXD treatment compared with the baseline level(P < 0.01).There were also significant improvements in FBG,PBG, blood lipid series and BMI. DHXD also improved the main symptoms of stomach and intestine excessive heat syndrome in patients with obese T2DM. Huanglian(Rhizoma Coptidis) was the most frequently used in 678 clinical visits, the dosage of Huanglian(Rhizoma Coptidis) was related to age, BMI, DM duration, the level of blood glucose,and use of Western hypoglycemic drugs.CONCLUSION: This study suggests that DHXD could decrease blood glucose and improve T2DM symptoms and reduce body weight. The use of DHXD may indicate a new optional treatment for T2 DM. 展开更多
关键词 Diabetes mellitus type 2 Blood glucose Body weight Dahuang Huanglian Xiexin decoction Retrospective studies
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