提高中压燃气锅炉热效率技术分析  

Analysis of Improving Thermal Efficiency about Medium-pressure Gas-fired Boiler

作　　者：孙红燕 张秀霞[2] 魏舒怡[3] 魏国顺[4] 

机构地区：[1]中卫市特种设备安全检验所,宁夏中卫755000 [2]北方民族大学电信学院,银川750021 [3]中国科学院研究生院,北京100049 [4]首秦金属材料有限公司,河北秦皇岛066000

出　　处：《新乡学院学报》2011年第5期452-454,共3页Journal of Xinxiang University

基　　金：国家自然科学基金资助项目(60844006);国家民委科研项目(08XBE07);宁夏自然科学基金项目(NZ0884);宁夏高校科研基金项目(2008JY002)

摘　　要：采用锅炉正平衡计算方法,辅以反平衡计算法,对某自备电站75 t/h中压三气混烧燃气锅炉进行了热力计算.根据燃气锅炉燃料特性,结合现场检测锅炉热工参数,分析了影响燃气锅炉热效率的因素,计算了排烟温度及散热量损失所占比例,通过分析,找出了最佳运行空气过剩系数,以提供合理的供风量,从而节约能源,减少排烟量,减少热损失,提高锅炉燃烧效率.In this paper, the thermal calculation is been done based on the 75t/h medium-pressure gas boiler which combines the natural gas, BFG and LDG in the electricity station supplied by some company utilizing the boiler balance calculation and alo anti-balance calculation supplement method. And it analyzes the factors to influence the thermal efficiency of gas boiler and caculates the the temputure of emission smoke and the proportion of heat loss according to the characteristics of gas boiler and the boiler thermal parameter tested in the site; Through analysis the surplus air confieient in the exit of exellent operations, this paper pays attention to offer the reasonable amount of wind, saving energy, reducing emission and heat loss and to improve the burning effiency of boiler by the technologies, equipments and skills.

关 键 词：中压燃气锅炉 最佳运行空气过剩系数 减少排烟 节约能源 燃烧效率 

分 类 号：TK3[动力工程及工程热物理—热能工程]